Display apparatus
25 claims: 16 independent, 9 dependent
- 1基板上に配された表示部と、 前記表示部と対向し、金属膜及び複合部材を具備し、前記複合部材が基底部と、前記基底部と段差を有する凸部とから構成された密封部と、 前記基板と前記密封部との間に、前記表示部と離隔されるように配され、前記基板と前記密封部とを接合するシーリング部と、を含 み、 前記凸部は、上部面に突設された外部装置を表示装置に連結させる連結部材である突出部をさらに含む ことを特徴とする表示装置。
- 2前記凸部は、前記基板の反対側に、前記基底部から延設され、方形プレート状を有することを特徴とする請求項1に記載の表示装置。
- 3前記凸部は、方形リング状を有することを特徴とする請求項1に記載の表示装置。
- 4前記凸部は、 前記基板の反対側に、前記基底部から延設されて方形プレート状を有する第1凸部と、 前記第1凸部と段差を有して形成された楕円リング状の第2凸部と、を含むことを特徴とする請求項1に記載の表示装置。
- 5前記凸部は、 前記基板の反対側に、前記基底部から延設されて方形プレート状を有する第1凸部と、 前記第1凸部と段差を有して形成されたX字状の第2凸部と、を含むことを特徴とする請求項1に記載の表示装置。
- 6前記凸部は、 前記基板の反対側に、前記基底部から延設されて方形プレート状を有する第1凸部と、 前記第1凸部と段差を有して形成されたX字状の第2凸部と、を含むことを特徴とする請求項1に記載の表示装置。
- 7前記凸部は、 前記基板の反対側に、前記基底部から延設されて方形プレート状を有する第1凸部と、 前記第1凸部と段差を有して形成されたストリップ状の第2凸部と、を含むことを特徴とする請求項1に記載の表示装置。
- 8前記複合部材は、前記基板のエッジを取り囲むように、前記密封部のエッジから延びた延長部をさらに含むことを特徴とする請求項1に記載の表示装置。
- 9前記複合部材は、樹脂マトリックス及び複数の炭素ファイバを含み、前記金属膜は、前記複合部材より前記基板にさらに近く配されることを特徴とする請求項1に記載の表示装置。
- 10前記複数の炭素ファイバは、一方向に配された複数の炭素ファイバと、前記一方向と交差する方向に配された複数の炭素ファイバと、を具備することを特徴とする請求項 9 に記載の表示装置。
- 11前記複数の炭素ファイバは、横方向及び縦方向に配されて織り上げられることを特徴とする請求項 9 に記載の表示装置。
- 12前記炭素ファイバの熱膨張率は、前記基板の熱膨張率より小さいことを特徴とする請求項 9 に記載の表示装置。
- 13前記複合部材は、複数の層に形成され、前記複数の層は、それぞれ樹脂マトリックス及び複数の炭素ファイバを含むことを特徴とする請求項1に記載の表示装置。
- 14前記複数の層のうち少なくとも1層に配された炭素ファイバは、第1方向に配列され、前記複数の層のうち少なくとも他の1層に配された炭素ファイバは、第2方向に配列され、前記第1方向と前記第2方向は、交差することを特徴とする請求項 13 に記載の表示装置。
- 15基板上に配された表示部と、 前記表示部と対向し、金属膜及び複合部材を具備し、前記複合部材の上部面に少なくとも1つのリブを具備する密封部と、 前記基板と前記密封部との間に、前記表示部と離隔されるように配され、前記基板と前記密封部とを接合するシーリング部と、を含 み、 前記複合部材は、上部面に突設された外部装置を表示装置に連結させる連結部材である突出部をさらに含 むことを特徴とする表示装置。
- 16前記リブは、前記複合部材の長辺側に形成されたことを特徴とする請求項 15 に記載の表示装置。
- 17前記複合部材は、前記基板のエッジを取り囲むように、前記密封部のエッジから延びた延長部をさらに含むことを特徴とする請求項 15 に記載の表示装置。
- 18前記複合部材は、樹脂マトリックス及び複数の炭素ファイバを含み、前記金属膜は、前記複合部材より前記基板にさらに近く配されることを特徴とする請求項 15 に記載の表示装置。
- 19前記複数の炭素ファイバは、一方向に配された複数の炭素ファイバと、前記一方向と交差する方向に配された複数の炭素ファイバと、を具備することを特徴とする請求項 18 に記載の表示装置。
- 20前記複数の炭素ファイバは、横方向及び縦方向に配されて織り上げられることを特徴とする請求項 18 に記載の表示装置。
- 21前記炭素ファイバの熱膨張率は、前記基板の熱膨張率より小さいことを特徴とする請求項 18 に記載の表示装置。
- 22前記複合部材は、複数の層に形成され、前記複数の層は、それぞれ樹脂マトリックス及び複数の炭素ファイバを含むことを特徴とする請求項 15 に記載の表示装置。
- 23前記複数の層のうち少なくとも1層に配された炭素ファイバは、第1方向に配列され、前記複数の層のうち少なくとも他の1層に配された炭素ファイバは、第2方向に配列され、前記第1方向と前記第2方向は、交差することを特徴とする請求項 22 に記載の表示装置。
- 24前記第1方向と前記第2方向は、互いに直交することを特徴とする請求項 23 に記載の表示装置。
- 25前記シーリング部は、エポキシ樹脂を含むことを特徴とする請求項 15 に記載の表示装置。
Independent claims25
116 paragraphs, as filed
0001The present invention relates to a display device, and more particularly to a display device in which the rigidity of the sealed portion is improved.
0002Recently, display devices have been replaced by portable, thin flat plate display devices. In particular, flat plate display devices such as organic light emitting display devices and liquid crystal display devices are in the limelight because of their excellent image quality characteristics.
0003In the flat plate display device, a display unit is arranged on a lower substrate, and a sealed substrate is arranged on the upper part of the display unit so as to protect the display unit. Further, a sealing portion is arranged between the lower substrate and the sealed substrate.
0004Such a flat plate display device is easily deformed or damaged by heat. To prevent this, the lower substrate or the sealed substrate can be formed thick. However, in that case, when an external force is applied due to the thermal residual stress of the sealing portion, the strength of the display device is greatly reduced, or the peeling stress is applied along the sealing portion. ) Can occur.
<p num="0005"> The present invention provides a structure of a sealing portion capable of improving the rigidity of the sealing portion by utilizing a reinforcing member, and a display device provided with such a sealing portion.</p>
<p num="0006"> A display device according to a preferred embodiment of the present invention has a display unit arranged on a substrate; facing the display unit, comprising a metal film and a composite member, and the composite member is a base portion and a step between the base portion and the base portion. A sealing portion composed of a convex portion having a structure; a sealing portion arranged between the substrate and the sealing portion so as to be separated from the display portion and joining the substrate and the sealing portion; be able to.</p><p num="0007"> More preferably, the convex portion extends from the base portion in the opposite direction of the substrate and may be in the shape of a square plate.</p><p num="0008"> More preferably, the convex portion may be in the shape of a square ring.</p><p num="0009"> More preferably, the convex portion is an ellipse formed on the opposite side of the substrate so as to have a first convex portion extending from the base portion and having a square plate shape and a step with the first convex portion. A second convex portion having any one of a ring shape, an X shape, and a strip shape can be included.</p><p num="0010"> More preferably, the convex portion may further include a protruding portion projecting from the upper surface.</p><p num="0011"> More preferably, the composite member may further include an extension extending from the edge of the sealing portion so as to surround the edge of the substrate.</p><p num="0012"> More preferably, the composite member comprises a resin matrix and a plurality of carbon fibers, and the metal film may be arranged closer to the substrate than the composite member.</p><p num="0013"> A display device according to a preferred embodiment of the present invention comprises a display unit arranged on a substrate; facing the display unit, comprising a metal film and a composite member, and having at least one rib on an upper surface of the composite member. A sealing portion; a sealing portion that is arranged between the substrate and the sealing portion so as to be separated from the display portion and joins the substrate and the sealing portion; can be included.</p><p num="0014"> More preferably, the ribs can be formed on the long side of the composite member.</p><p num="0015"> More preferably, the convex portion may further include a protruding portion projecting from the upper surface.</p><p num="0016"> More preferably, the composite member may further include an extension extending from the edge of the sealing portion so as to surround the edge of the substrate.</p><p num="0017"> More preferably, the composite member comprises a resin matrix and a plurality of carbon fibers, and the metal film may be arranged closer to the substrate than the composite member.</p><p num="0018"> A display device according to a preferred embodiment of the present invention is a display unit arranged on a substrate; a sealing unit facing the display unit, provided with a metal film and a composite member, and a reinforcing member provided on an upper surface of the composite member. A sealing portion; which is arranged between the substrate and the sealing portion so as to be separated from the display portion and which joins the substrate and the sealing portion; can be included.</p><p num="0019"> More preferably, the reinforcing member may be a convex portion having a step with the base portion of the composite member and integrally formed with the composite member.</p><p num="0020"> More preferably, the reinforcing member may be at least one rib formed on the upper surface of the composite member.</p>
<p num="0021"> The display device of the present invention reduces the weight, slims, and costs of the display device by variously changing the shape of the sealed portion and increasing the area moment of inertia without increasing the thickness of the sealed portion. Rigidity can be improved.</p>
0022<figref num="1">It is the schematic sectional drawing of the display device by one Embodiment of this invention.</figref><figref num="2">It is the drawing which roughly illustrated the structure of the composite member of FIG.</figref><figref num="3">It is the drawing which roughly illustrated the structure of the composite member of FIG.</figref><figref num="4">It is a perspective view which roughly illustrated various shapes of the composite member of FIG.</figref><figref num="5">It is a perspective view which roughly illustrated various shapes of the composite member of FIG.</figref><figref num="6">It is a perspective view which roughly illustrated various shapes of the composite member of FIG.</figref><figref num="7">It is a perspective view which roughly illustrated various shapes of the composite member of FIG.</figref><figref num="8">It is a perspective view which roughly illustrated various shapes of the composite member of FIG.</figref><figref num="9">It is the schematic sectional drawing of the display device by another embodiment of this invention.</figref><figref num="10">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="11">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="12">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="13">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="14">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="15">9 is a perspective view schematically showing various shapes of the composite member of FIG. 9.</figref><figref num="16">It is the schematic sectional drawing of the display device by still another Embodiment of this invention.</figref><figref num="17">FIG. 5 is a perspective view schematically illustrating various shapes of the composite member of FIG. 16.</figref><figref num="18">FIG. 5 is a perspective view schematically illustrating various shapes of the composite member of FIG. 16.</figref><figref num="19">FIG. 5 is a perspective view schematically illustrating various shapes of the composite member of FIG. 16.</figref><figref num="20">FIG. 5 is a perspective view schematically illustrating various shapes of the composite member of FIG. 16.</figref><figref num="21">FIG. 5 is a perspective view schematically illustrating various shapes of the composite member of FIG. 16.</figref><figref num="22">It is the schematic sectional drawing of the display device by still another Embodiment of this invention.</figref><figref num="23">It is a perspective view of the composite member of FIG.</figref><figref num="24">It is a perspective view of the composite member of FIG.</figref>
0023Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The same reference numerals on the drawings refer to the same elements. In describing the present invention below, if it is determined that a specific description relating to a related known function or configuration obscures the gist of the present invention more than necessary, the detailed description thereof will be omitted. .. Also, in the drawings illustrating embodiments of the present invention, certain layers or regions are shown with increased thickness for clarity in the specification.
0024FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention. 2 and 3 are drawings schematically showing the structure of the composite member of FIG. 1.
0025Referring to FIG. 1, the display device 100A includes a substrate 110, a display unit 130, a sealing unit 190A and a sealing unit 150.
0026The substrate 110 is SiO<sub>2</sub>It can consist of a transparent glass material containing the above as a main component. The substrate 110 is not necessarily limited to this, and may be formed of a transparent plastic material. At this time, the plastic material forming the substrate 110 is an insulating organic substance such as polyether sulfone (PES), polyimide (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), and the like. It can be an organic substance selected from the group consisting of polyphenylene sulfide (PPS), polyallylate, polyimide (polyimide), polycarbonate (PC), cellulose triacetate (TAC), and cellulose acetate propionate (CAP).
0027A number of steps for forming the display unit 130 are carried out on the substrate 110, and heat is applied during such steps, so that the substrate 110 expands due to the heat. The expansion of the substrate 110 reduces the durability of the display device 100A and the accuracy of the display unit 130. Therefore, it is desirable that the substrate 110 has a value having a low coefficient of thermal expansion, specifically, 3 × 10.<sup>-6</sup>/ K or 4x10<sup>-6</sup>Have a coefficient of thermal expansion of / K.
0028The display unit 130 includes an organic light emitting element, a liquid crystal element, and the like, and is arranged on the substrate 110.
0029The sealing portion 190A is arranged so as to face the display portion 130. The sealing portion 190A protects the display portion 130 from external moisture, oxygen, and the like. The sealing portion 190A includes a metal film 170 and a composite member 180A. The composite member 180A is formed on the metal film 170. That is, the composite member 180A is arranged farther from the display unit 130 than the metal film 170.
0030The sealing portion 150 is cured by heat to join the substrate 110 and the sealing portion 190A. During the process of applying heat to the sealing portion 150, the sealing portion 190A can expand. If the degree to which the sealing portion 190A expands due to heat becomes large, the bonding force with the substrate 110 weakens, and as a result, the durability of the display device 100A may decrease.
0031However, in the present embodiment, the sealing portion 190A includes the composite member 180A having a low coefficient of thermal expansion, and the degree of expansion during the process of applying heat is not large. The composite member 180A has a coefficient of thermal expansion lower than or similar to that of the substrate 110. The composite member 180A may include a resin matrix and a plurality of carbon fibers as shown in FIGS. 2 and 3.
0032Referring to FIG. 2, the composite member 180A may include a resin matrix 181 and a plurality of carbon fibers 182.
0033The composite member 180A is formed by impregnating the resin matrix 181 with the carbon fiber 182. At this time, the plurality of carbon fibers 182 are arranged so as to intersect each other in a row and a column. That is, the carbon fiber 182 can include the carbon fiber 182 arranged in the X direction of FIG. 2 and the carbon fiber 182 arranged in the Y direction of FIG. Through this, a composite member 180A that is uniform over the entire region and has a low coefficient of thermal expansion can be formed. FIG. 2 shows the carbon fibers 182 arranged so as to be orthogonal to each other, but the present invention is not limited thereto. That is, the crossing angle of the carbon fiber 182 can be determined so that the composite member 180A has a desired coefficient of thermal expansion.
0034Further, the plurality of carbon fibers 182 can have a woven form in which each carbon fiber 182 is knitted and woven from each other by weft threads and warp threads. The carbon fiber 182 arranged in the X direction in FIG. 2 and the carbon fiber 182 arranged in the Y direction in FIG. 2 can be woven into a cloth-like shape. Through this, the durability of the composite member 180A is improved.
0035The carbon fiber 182 has a lower coefficient of thermal expansion than the substrate 110. In particular, the coefficient of thermal expansion of the carbon fiber 182 in the longitudinal direction has a negative (-) value. In addition, the carbon fiber 182 does not absorb water and improves the water permeation prevention ability of the sealing portion 190A.
0036Resin matrix 181 is 15 x 10<sup>-6</sup>/ K or 120 × 10<sup>-6</sup>It has a coefficient of thermal expansion of / K. The carbon fiber 182 and the resin matrix 181 can be mixed to form a composite member 180A having a desired coefficient of thermal expansion. That is, the composite member 180A having a coefficient of thermal expansion lower than that of the substrate 110 or having a coefficient of thermal expansion similar to that of the substrate 110 is formed. At this time, the amount of the carbon fiber 182 and the amount of the resin matrix 181 can be adjusted to control the coefficient of thermal expansion of the composite member 180A to a desired value.
0037As another embodiment, with reference to FIG. 3, the composite member 180A comprises a plurality of layers, each layer comprising a resin matrix and a plurality of carbon fibers. Each layer is formed by impregnating a resin matrix with carbon fiber. Each layer of the composite member 180A is formed so as to have carbon fibers arranged in one direction, and each layer is laminated. As a result, a composite member 180A having a plurality of carbon fibers arranged so as to intersect can be easily formed.
0038The composite member 180A includes a first layer 180a, a second layer 180b, a third layer 180c, and a fourth layer 180d. Each layer 180a, 180b, 180c, 180d contains a resin matrix 181A, 181B, 181C, 181D and a carbon fiber 182A, 182B, 182C, 182D.
0039The arrangement directions of the carbon fibers 182A and 182D of the first layer 180a and the fourth layer 180d and the arrangement directions of the carbon fibers 182B and 182C of the second layer 180b and the third layer 180c intersect each other. Specifically, the arrangement directions of the carbon fibers 182A and 182D of the first layer 180a and the fourth layer 180d are the first direction (Y direction in FIG. 3), and the carbon fibers 182B of the second layer 180b and the third layer 180c. The arrangement direction of, 182C is the second direction (X direction in FIG. 3). It is desirable that the first direction and the second direction are orthogonal to each other. However, the present invention is not limited to this. That is, in order to adjust the coefficient of thermal expansion of the composite member 180A to a desired value, the arrangement direction of the carbon fibers 182A and 182D of the first layer 180a and the fourth layer 180d and the carbon of the second layer 180b and the third layer 180c. The angle formed by the arrangement direction of the fibers 182B and 182C can be diversified.
0040Referring again to FIG. 1, the shape of the sealing portion 190A is determined by the shape of the composite member 180A, which can be molded into a heated plate using a mold. The composite member 180A forms a convex portion protruding in a direction away from the display portion 130 integrally with the composite member 180A to increase the overall height and area. As a result, the area moment of inertia can be increased and the flexural rigidity can be improved by increasing the overall height and area of the sealed portion 190A without increasing the thickness and weight of the sealed portion 190A. If the height of the sealing part 190A is three times the thickness of the flat sealing part, the area moment of inertia is almost 27 times (3).<sup>3</sup>) Due to the increase, the rigidity is greatly improved. A concave portion 189 is formed inside the sealing portion 190A by the convex portion. Therefore, even if the getter is inserted into the recess 189, the contact between the sealing portion 190A and the display portion 130 can be prevented. The shape of the composite member 180A will be described in detail later with reference to FIGS. 4 to 8.
0041The metal film 170 has a more precise structure than the composite member 180A. The metal film 170 and the composite member 180A are used together, and the sealing portion 190A can effectively block moisture and foreign matter penetrating the display portion 130.
0042The metal film 170 has a larger coefficient of thermal expansion than the composite member 180A. Further, the metal film 170 may have a larger coefficient of thermal expansion than the substrate 110. However, since the sealing portion 190A includes the composite member 180A, the coefficient of thermal expansion of the entire sealing portion 190A is maintained low. In particular, the thickness of the composite member 180A can be made thicker than that of the metal film 170, and the coefficient of thermal expansion of the sealing portion 190A can be effectively maintained low.
0043A sealing portion 150 is arranged between the substrate 110 and the sealing portion 190A. The sealing portion 150 is formed around the display portion 130. The sealing portion 150 joins the substrate 110 and the sealing portion 190A and contains a thermosetting resin. Specifically, the sealing portion 150 can include an epoxy resin.
00444 to 8 are perspective views schematically showing various shapes of the composite member of FIG. 1. 4 to 8 show a perspective view of the composite member on the upper side and a cross-sectional view of A-A'and B-B'of the perspective view on the lower side.
0045Referring to FIG. 4, the composite member 280A is composed of a base portion 281, a convex portion 285 protruding from the base portion 281 by a predetermined height, and an inclined portion 283 connecting the base portion 281 and the convex portion 285. To.
0046The composite member 280A has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0047The first surface of the base portion 281 is in contact with the sealing portion 150.
0048The convex portion 285 has a square plate shape. Since the convex portion 285 has a step with the base portion 281 in the direction away from the substrate 110, the overall height and area of the composite member 280A increase. The convex portion 285 forms a concave portion 289 inside the composite member 280A. A metal film 170 may be arranged below the composite member 280A, and a getter may be further arranged in the recess 289.
0049Referring to FIG. 5, the composite member 380A is composed of a base portion 381, a convex portion 385 protruding from the base portion 381 by a predetermined height, and an inclined portion 383 connecting the base portion 381 and the convex portion 385. ..
0050The composite member 380A has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0051The base portion 381 is composed of a first region 381a whose first surface is in contact with the sealing portion 150 and a square plate-shaped second region 381b whose four corners are gently curved with the convex portion 385 as a boundary. The curve.
0052The convex portion 385 has a square ring shape. Since the convex portion 385 has a step with the base portion 381 in the direction away from the substrate 110, the overall height of the composite member 380A increases. The convex portion 385 forms a rectangular ring-shaped concave portion 389 inside the composite member 380A. A metal film may be arranged below the composite member 380A, and a getter may be further arranged in the recess 389.
0053Referring to FIG. 6, the composite member 480A includes a base portion 481, a first convex portion 485 protruding from the base portion 481 by a predetermined height, and an inclined portion 483 connecting the base portion 481 and the first convex portion 485. , And a second convex portion 487 protruding from the first convex portion 485 by a predetermined height.
0054The composite member 480A has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0055The first surface of the base portion 481 is in contact with the sealing portion 150.
0056The first convex portion 485 has a square plate shape. The first convex portion 485 is composed of a first region 485a and an elliptical second region 485b with the second convex portion 487 as a boundary.
0057The second convex portion 487 has an elliptical ring shape and has a step with the first convex portion 485.
0058Since the first convex portion 485 and the second convex portion 487 have steps in order from the base portion 481 in the direction away from the substrate 110, the overall height and area of the composite member 480A increase. The first convex portion 485 forms a quadrangular concave portion 489a inside the composite member 480A, and the second convex portion 487 further forms an elliptical concave portion 489b in the quadrangular concave portion 489a. A metal film 170 may be arranged below the composite member 480A, and a getter may be further arranged in the recesses 489a and 489b.
0059Referring to FIG. 7, the composite member 580A has a base portion 581, a first convex portion 585 protruding from the base portion 581 by a predetermined height, and an inclined portion 583 connecting the base portion 581 and the first convex portion 585. , And a second convex portion 587 protruding from the first convex portion 585 by a predetermined height.
0060The composite member 580A has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0061The first surface of the base portion 581 is in contact with the sealing portion 150.
0062The first convex portion 585 has a square plate shape.
0063The second convex portion 587 has a step with the first convex portion 485. The second convex portion 587 has an X shape in the diagonal direction of the composite member 580A. The second convex portion 587 is composed of a central portion 587e and at least one strip-shaped rib 587a, 587b, 587c, 587d branched at the central portion 587e.
0064Since the first convex portion 585 and the second convex portion 587 have steps in order from the base portion 581 in the direction away from the substrate 110, the overall height and area of the composite member 580A increase. The first convex portion 585 forms a quadrangular concave portion 589a inside the composite member 580A, and the second convex portion 587 further forms an X-shaped concave portion 589b in the quadrangular concave portion 589a. .. A metal film 170 may be arranged below the composite member 580A, and a getter may be further arranged in the recesses 589a and 589b.
0065Referring to FIG. 8, the composite member 680A has a base portion 681, a first convex portion 685 protruding from the base portion 681 by a predetermined height, and an inclined portion 683 connecting the base portion 681 and the first convex portion 685. , And a second convex portion 687 protruding from the first convex portion 685 by a predetermined height.
0066The composite member 680A has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0067The first surface of the base portion 681 is in contact with the sealing portion 150.
0068The first convex portion 685 has a square plate shape.
0069The second convex portion 687 is composed of one or more ribs 687a, 687b, 687c, 687d, 687e formed in a strip shape and parallel to each other. In the present embodiment, five ribs are illustrated, but the present invention is not limited thereto.
0070Since the first convex portion 685 and the second convex portion 687 have steps in order from the base portion 681 in the direction away from the substrate 110, the overall height of the composite member 680A increases. The first convex portion 685 forms a quadrangular recess 689a inside the composite member 680A, and the second convex 687 further forms at least one strip-shaped recess 689b in the quadrangular recess 689a. To. A metal film 170 may be arranged below the composite member 680A, and a getter may be further arranged in the recesses 689a and 689b.
0071FIG. 9 is a schematic cross-sectional view of a display device according to another embodiment of the present invention.
0072Referring to FIG. 9, the display device 100B includes a substrate 110, a display unit 130, a sealing unit 190B, and a sealing unit 150.
0073The display device 100B of FIG. 9 is the same as the display device 100A of FIG. 1 except that the shape of the composite member 180B is different from the shape of the composite member 180A of the display device 100A of FIG. The explanation will be omitted.
0074The sealing portion 190B is arranged so as to face the display portion 130. The sealing portion 190B protects the display portion 130 from external moisture, oxygen, and the like. The sealing portion 190B includes a metal film 170 and a composite member 180B. The composite member 180B is formed on the metal film 170. That is, the composite member 180B is arranged farther from the display unit 130 than the metal film 170. The composite member 180B can include a resin matrix and a plurality of carbon fibers as shown in FIGS. 2 and 3.
0075The shape of the sealing portion 190B is determined by the shape of the composite member 180B, and the composite member 180B can be formed on a heated plate by using a mold. The sealing portion 190B includes a convex portion 185 in a direction away from the display portion 130, and increases the overall height and area. As a result, the area moment of inertia can be increased and the flexural rigidity can be improved by increasing the overall height of the sealed portion 190B without increasing the thickness and weight of the sealed portion 190B. If the height of the sealing part 190B is three times the thickness of the flat sealing part, the area moment of inertia is almost 27 times (3).<sup>3</sup>) Due to the increase, the rigidity is greatly increased. The convex portion forms a concave portion 189 inside the sealing portion 190B. Therefore, even if a getter is formed in the recess 189, the contact between the sealing portion 190B and the display portion 130 can be prevented. The shape of the composite member 180B will be described in detail later with reference to FIGS. 10 to 15.
0076The sealing portion 190B may further include a protruding portion 160 in one area of the upper surface.
0077The protrusion 160 is a connecting member that connects an external device such as a printed circuit board (PCB) to the display device 100B. As an example, the protrusion 160 may be formed in the shape of a bolt having a threaded outer surface. The protrusion 160 may be formed integrally with the composite member 180B of the sealing portion 190B. At this time, the protruding portion 160 can be formed integrally with the uppermost layer of the composite member 180B. The position and number of the protrusions 160 may be determined by an external device to be connected. The height of the protrusion 160 can be appropriately determined by the external device to be connected.
007810 to 15 are perspective views schematically showing various shapes of the composite member of FIG. 9. 10 to 15 show a perspective view of the composite member on the upper side and a cross-sectional view of A-A'and B-B'in the perspective view on the lower side.
0079Referring to FIG. 10, the composite member 280B is composed of a base portion 281, a convex portion 285 protruding from the base portion 281 by a predetermined height, and an inclined portion 283 connecting the base portion 281 and the convex portion 285. To.
0080The composite member 280B has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0081The first surface of the base portion 281 is in contact with the sealing portion 150.
0082The upper surface of the convex portion 285 is provided with one or more protruding portions 260 for connecting to an external device. Since the convex portion 285 has a step with the base portion 281 in the direction away from the substrate 110, the overall height and area of the composite member 280B increase. The convex portion 285 forms a concave portion 289 inside the composite member 280B. A metal film 170 may be arranged below the composite member 280B, and a getter may be further arranged in the recess 289.
0083Referring to FIG. 11, the composite member 380B is composed of a base portion 381, a convex portion 385 protruding from the base portion 381 by a predetermined height, and an inclined portion 383 connecting the base portion 381 and the convex portion 385. ..
0084The composite member 380B has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0085The base portion 381 is composed of a first region 381a whose first surface is in contact with the sealing portion 150 and a square plate-shaped second region 381b whose four corners are gently curved with the convex portion 385 as a boundary. The curve.
0086The second region 381b of the base portion 381 is provided with one or more protrusions 360 for connecting to an external device. The convex portion 385 has a square ring shape. Since the convex portion 385 has a step with the base portion 381 in the direction away from the substrate 110, the overall height of the composite member 380B increases. The convex portion 385 forms a rectangular ring-shaped concave portion 389 inside the composite member 380B. A metal film may be arranged below the composite member 380B, and a getter may be further arranged in the recess 389.
0087Referring to FIG. 12, the composite member 480B includes a base portion 481, a first convex portion 485 protruding from the base portion 481 by a predetermined height, and an inclined portion 483 connecting the base portion 481 and the first convex portion 485. , And a second convex portion 487 protruding from the first convex portion 485 by a predetermined height.
0088The composite member 480B has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0089The first surface of the base portion 481 is in contact with the sealing portion 150.
0090The first convex portion 485 has a square plate shape. The first convex portion 485 is composed of a first region 485a and an elliptical, circular second region 485b with the second convex portion 487 as a boundary. The second region 485b of the first convex portion 485 is provided with one or more protruding portions 460 for connecting to an external device.
0091The second convex portion 487 has an elliptical ring shape and has a step with the first convex portion 485.
0092Since the first convex portion 485 and the second convex portion 487 have steps in order from the base portion 481 in the direction away from the substrate 110, the overall height and area of the composite member 480B increase. The first convex portion 485 forms a quadrangular concave portion 489a inside the composite member 480B, and the second convex portion 487 further forms an elliptical concave portion 489b in the quadrangular concave portion 489a. A metal film 170 may be arranged below the composite member 480B, and a getter may be further arranged in the recesses 489a and 489b.
0093Referring to FIG. 13, the composite member 580B includes a base portion 581, a first convex portion 585 protruding from the base portion 581 by a predetermined height, and an inclined portion 583 connecting the base portion 581 and the first convex portion 585. , And a second convex portion 587 protruding from the first convex portion 585 by a predetermined height.
0094The composite member 580B has a first surface facing the substrate 110 and a second surface opposite to the first surface.
0095The first surface of the base portion 581 is in contact with the sealing portion 150.
0096The first convex portion 585 has a square plate shape.
0097The second convex portion 587 has a step with the first convex portion 585. The second convex portion 587 has an X shape in the diagonal direction of the composite member 580B. The second convex portion 587 is composed of a central portion 587e and at least one strip-shaped rib 587a, 587b, 587c, 587d branched at the central portion 587e.
0098One or more protrusions 560 for connecting to an external device are provided between two adjacent ribs among the ribs 587a, 587b, 587c, and 587d. The protrusion 560 may be provided at least one between at least one rib 587a, 587b, 587c, 587d.
0099Since the first convex portion 585 and the second convex portion 587 have steps in order from the base portion 581 in the direction away from the substrate 110, the overall height and area of the composite member 580B increase. The first convex portion 585 forms a quadrangular concave portion 589a inside the composite member 580B, and the second convex portion 587 further forms an X-shaped concave portion 589b in the quadrangular concave portion 589a. .. A metal film 170 may be arranged below the composite member 580B, and a getter may be further arranged in the recesses 589a and 589b.
0100With reference to FIGS. 14 and 15, the composite members 680B and 680B'are such that the base portion 681, the first convex portion 685 protruding from the base portion 681 by a predetermined height, the base portion 681 and the first convex portion 685. It is composed of an inclined portion 683 and a second convex portion 687 protruding from the first convex portion 685 by a predetermined height.
0101The composite members 680B and 680B'have a first surface facing the substrate 110 and a second surface opposite to the first surface.
0102The first surface of the base portion 681 is in contact with the sealing portion 150.
0103The first convex portion 685 has a square plate shape.
0104The second convex portion 687 is composed of one or more ribs 687a, 687b, 687c, 687d, 687e formed in a strip shape and parallel to each other. In the present embodiment, five ribs are illustrated, but the present invention is not limited thereto.
0105As illustrated in FIG. 14, some of the one or more ribs 687a, 687b, 687c, 687d, 687e may be provided with one or more protrusions 660a for connecting to an external device. Alternatively, as illustrated in FIG. 15, a protrusion 660b for connecting to an external device is provided between one or more ribs 687a, 687b, 687c, 687d, 687e on the first convex portion 685. Can have more than one.
0106Since the first convex portion 685 and the second convex portion 687 have steps in order from the base portion 681 in the direction away from the substrate 110, the overall height of the composite members 680B and 680B'increases. The first convex portion 685 forms a quadrangular recess 689a inside the composite members 680B, 680B', and the second convex portion 687 forms a strip-shaped recess 689b in the quadrangular recess 689a. Is further formed. A metal film 170 may be arranged below the composite members 680B and 680B', and a getter may be further arranged in the recesses 689a and 689b.
0107FIG. 16 is a schematic cross-sectional view of a display device according to still another embodiment of the present invention. 17 to 21 are perspective views schematically showing various shapes of the composite member of FIG. 16.
0108Referring to FIG. 16, the display device 100C includes a substrate 110, a display unit 130, a sealing unit 190C, and a sealing unit 150.
0109The display device 100C of FIG. 16 is the same as the display device 100A of FIG. 1 except that the shape of the composite member 180C is different from the shape of the composite member 180A of the display device 100A of FIG. The explanation will be omitted.
0110The sealing portion 190C is arranged so as to face the display portion 130. The sealing portion 190C includes a metal film 170 and a composite member 180C. The composite member 180C is formed on the metal film 170. That is, the composite member 180C is arranged farther from the display unit 130 than the metal film 170. The composite member 180C can include a resin matrix and a plurality of carbon fibers as shown in FIGS. 2 and 3.
0111The shape of the sealing portion 190C is determined by the shape of the composite member 180C, and the composite member 180C can be formed on a heated plate using a mold. The sealing portion 190C includes a convex portion 185 in a direction away from the display portion 130, and increases the overall height and area. As a result, the area moment of inertia can be increased and the flexural rigidity can be improved by increasing the overall height of the sealed portion 190C without increasing the thickness and weight of the sealed portion 190C. A concave portion 189 is formed inside the sealing portion 190C by the convex portion. Therefore, even if a getter is formed in the recess 189, the contact between the sealing portion 190C and the display portion 130 can be prevented.
0112The composite member 180C of the sealing portion 190C can be formed into various shapes as shown in FIGS. 4 to 8. Further, as shown in FIGS. 10 to 15, the composite member 180C can be integrally provided with a protruding portion (not shown) for connecting to an external device in one region of the upper surface thereof. ..
0113Further, the composite member 180C may include an extension portion 140 extended toward the substrate 110 side (vertical direction) at the edge of the composite member 180C in order to protect the substrate 110. The extension portion 140 is formed integrally with the composite member 180C. By forming the extension portion 140 so as to surround the edge of the substrate 110, it is possible to prevent the edge of the substrate 110 from colliding with another object. As a result, the sealing portion 190C can have a structure that is resistant to handling or dynamic impact as well as a static (stable) strength improvement.
0114The composite member 180C can have the various shapes of the composite members 280C, 380C, 480C, 580C, 680C illustrated in FIGS. 17 to 21. The composite member 280C, 380C, 480C, 580C, 680C can include extension portions 240,340,440,540,640 extending from the edge toward the substrate 110 side (vertical direction).
0115The extension portions 140,240,340,440,540,640 may be formed so as to surround any of the edges of the substrate 110, and as shown in FIGS. 17 to 21, the extension portions 140,240,340,440,540,640 are formed so that a part of the extension portions 140,240,340,440,540,640 is opened. Also do. The extension portions 140, 240, 340, 440, 540, 640 may be formed so as to cover the circuit wiring extending to the outside of the substrate 110, but may also be formed so that the circuit wiring portion is opened for convenience of the assembly process.
0116Since the other components of FIGS. 17 to 21 are the same as those of FIGS. 4 to 8 and 10 to 15, detailed description thereof will be omitted.
0117FIG. 22 is a schematic cross-sectional view of a display device according to still another embodiment of the present invention. 23 and 24 are perspective views of the composite member of FIG. 22.
0118Referring to FIG. 22, the display device 100D includes a substrate 110, a display unit 130, a sealing unit 190D and a sealing unit 150.
0119The display device 100D of FIG. 22 is the same as the display device 100A of FIG. 1 except that the shape of the sealing portion 190D is different from the shape of the sealing portion 190A of the display device 100A of FIG. The explanation will be omitted.
0120The sealing portion 190D is arranged so as to face the display portion 130. The sealing portion 190D includes a metal film 170 and a composite member 180D. The composite member 180D is formed on the metal film 170. That is, the composite member 180D is arranged farther from the display unit 130 than the metal film 170. The composite member 180D may include a resin matrix and a plurality of carbon fibers as shown in FIGS. 2 and 3.
0121The composite member 180D is flat, and the upper surface of the composite member 180D includes at least one rib 120 protruding like a wall plate along the long side direction. The rib 120 includes two edge-side ribs 120a, 120d on the long side and ribs 120b, 120c formed inside so as to be parallel to the ribs 120a, 120d. The rib 120 is extended integrally with the composite member 180D, increases the area moment of inertia of the cross section of the composite member 180D, and makes warpage deformation and torsional deformation less likely to occur.
0122Such a composite member 180D can be manufactured by a pultrusion method, and the manufacturing cost can be reduced as compared with the manufacturing method using the above-mentioned mold.
0123As shown in FIG. 24, the composite member 180D may further include a protrusion 125 on a part of the upper surface. The protrusion 125 is a connecting member that connects an external device such as a printed circuit board to the display device 100D. As an example, the protrusion 125 may be formed in the shape of a bolt having a threaded outer surface. The protrusion 125 may be formed integrally with the composite member 180D of the sealing portion 190D. At this time, the protruding portion 125 can be formed integrally with the uppermost layer of the composite member 180B. The position and number of the protrusions 125 may be determined by an external device to be connected. As another example, the protrusion 125 prepares a separate protrusion 125, for example, a bolt-shaped connecting member, and before the composite member 180D is crystallized, the protrusion 125 is subjected to the composite member 180D. The protrusion 125 can be fixed by inserting the composite member 180D into a predetermined position and curing the composite member 180D.
0124Although not shown in the drawings, the composite member 180D is provided from the edge of the composite member 180D to the substrate 110 side (vertical direction) as shown in FIGS. 17 to 21 in order to protect the substrate 110. An extended extension can be included. The extension portion is formed integrally with the composite member 180D. By forming the extension portion so as to surround the edge of the substrate 110, it is possible to prevent the edge of the substrate 110 from colliding with another object. As a result, the sealing portion 190D can have a structure that is resistant to handling or dynamic impact as well as a static (stable) strength improvement.
0125In the case of a slim-type large TV, the thickness of the size is very thin, so there is a problem that the warp is large. The display device of the present invention includes an integrated sealing portion of a thin and light composite member and a metal film, and forms a reinforcing member capable of increasing the area moment of inertia of the composite member on the upper surface of the composite member. Thereby, the rigidity of the sealed portion can be improved. The reinforcing member is a convex portion formed integrally with the composite member on the base portion of the composite member, or at least one rib formed on the upper surface of the composite member.
0126INDUSTRIAL APPLICABILITY According to the present invention, the composite member has a three-dimensional shape, and mechanical rigidity (elimination of warpage problem, improvement of flexural rigidity, improvement of drop reliability, etc.) can be further enhanced. If the mechanical rigidity is increased, the display device can remove additional parts such as a bezel for maintaining rigidity and an adhesive tape for joining the bezel to the sealing portion. Further, in the present invention, a concave portion is formed inside the composite member by forming a convex portion on the composite member to have a three-dimensional shape. Therefore, a substance such as a getter can be easily inserted between the sealing portion and the lower substrate.
0127Further, in the present invention, the edge of the composite member is projected toward the lower substrate to improve static (stable) strength and protect the edge of the lower substrate.
0128Further, according to the present invention, by integrally forming the projecting portion on the composite member, it is possible to remove an additional component or a connecting component configuration for connecting to an external device such as a printed circuit board.
0129The present invention has been described with reference to the embodiments illustrated in the drawings, but they are merely exemplary and, if one of ordinary skill in the art, various variations and equivalents from them. It will be understood that the embodiment of is possible. Therefore, the true technical protection scope of the present invention is determined by the technical idea of the claims.
0130100A, 100B, 100C, 100D display device 110 board 120, 120a, 120b, 120c, 120d, 125, 587a, 587b, 587c, 587d, 687a, 687b, 687c, 687d, 687e ribs 125,160,260,360,460,560,660a,660b Protruding part 130 Display 140,240,340,440,540,640 Extension 150 Sealing part 170 metal film 180A, 180B, 180C, 180D, 280A, 280B, 280C, 380A, 380B, 380C, 480A, 480B, 480C, 580A, 580B, 580C, 680A, 680B, 680B', 680C composite member 180a 1st layer 180b 2nd layer 180c 3rd layer 180d 4th layer 181,181A,181B,181C,181D Resin Matrix 182,182A, 182B, 182C, 182D Carbon fiber 185,285,385 Convex part 190A, 190B, 190C, 190D Sealed part 189, 289, 389, 489a, 489b, 589a, 589b, 689a, 689b Recess 281,381,481,581,681 Base 283,383,483,583,683 Slope 381a, 485a 1st area 381b, 485b 2nd area 485,585,685 1st convex part 487,587,687 2nd convex part 587e center
24 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22 Sheet 23 Sheet 24
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2001118674A | Cites | Japan |
| KR1020030044665A | Cites | Republic of Korea |
| JP2003229249A | Cites | Japan |
| JP2006012771A | Cites | Japan |
| JP2008243494A | Cites | Japan |
| JP2010040522A | Cites | Japan |
| JP2005317942A | Cites | Japan |
| JP2006185643A | Cites | Japan |
| JP06325868A | Cites | Japan |
| JP2010511267A | Cites | Japan |
| JP2007073405A | Cites | Japan |
| JP07169567A | Cites | Japan |
10 members in 5 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 1020100051974 | Republic of Korea | – | |
| 20100051974 | Republic of Korea | A |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| US2011289809A1 | United States of America | A1 | |
| CN102270748A | China | A | |
| EP2393077A2 | European Patent Office (EPO) | A2 | |
| KR20110132133A | Republic of Korea | A | |
| JP2011253177A | Japan | A | |
| US8487533B2 | United States of America | B2 | |
| EP2393077A3 | European Patent Office (EPO) | A3 | |
| JP5836624B2This record | Japan | B2 | |
| CN102270748B | China | B | |
| KR101798487B1 | Republic of Korea | B1 |
17 legal events, as the office reported them to INPADOC
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Numbers
- Publication
- 5836624
- Application
- 88148
Titles2
- Japanese
- 表示装置
- English
- Display device
Classification
- CPC, 7
- G09F9/30
- H10K59/872
- G09F9/35
- H04N5/64
- H10K59/871
- H10K59/8721
- H10K59/8722
- IPC, 1
- G09F9 30
