EP0802684A3

Method of controlling viewability of a display screen and a device therefor

Abstract

A display includes a display screen 21 for displaying information. A liquid crystal display (LCD) panel 70 adjoins the display screen 21. The LCD panel 70 is controlled to selectively define a viewing angle within which a selectable portion of the display screen 21 is viewable through the LCD panel 70. The LCD panel 70 includes a plurality of energizable segments 80 which, when energized, are opaque. Each of the plurality of energizable segments 80 is selectively energizable to selectively define the viewing angle within which information on the display screen 21 is viewable through the LCD panel 70. The segments of the LCD panel 70 are spaced apart from each other across the LCD panel 70 to provide a louvered- type of privacy screen when the segments 80 are opaque.

EP0802684A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 1 April 2017, 9.5 years ago.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
US4634229A	Cites	United States of America	X	Search report	1-5
US4641923A	Cites	United States of America	A	Search report	6
US5059957A	Cites	United States of America	AX	Search report	1-8,10
US5526065A	Cites	United States of America	A	Search report	1-10

11 members in 7 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
9608175	United Kingdom	A	1996-04-19
9608175	United Kingdom	–	1996-04-19
GB19960008175	–	–	–

Members11

Family members, oldest first
Document	Office	Kind
GB9608175D0	United Kingdom	D0	1996-06-26
EP0802684A2	European Patent Office (EPO)	A2	1997-10-22
ZA973025B	South Africa	B	1997-11-04
JPH1039821A	Japan	A	1998-02-13
US5825436A	United States of America	A	1998-10-20
EP0802684A3This record	European Patent Office (EPO)	A3	1999-04-14
EP0802684B1	European Patent Office (EPO)	B1	2001-10-31
DE69707744D1	Germany	D1	2001-12-06
ES2164988T3	Spain	T3	2002-03-01
DE69707744T2	Germany	T2	2002-07-11
JP4176167B2	Japan	B2	2008-11-05

37 legal events, as 5 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2017-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-07-26	Announcement of lapse in spainLapsedFD2A	FD2A	ES
2017-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-04-19	Patent expired after termination of 20 yearsExpiredPE20	PE20	GB
2017-04-01	Expiry of rightR071	R071	DE
2016-08-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-07-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-07-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-07-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-04-25	Fee paymentPLFP	PLFP	FR
2016-01-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-08-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2012-04-18	Register noted 'licences of right' (sect. 46/1977)746	746	GB
2011-07-29	Patent reinstated in contracting state [announced from national office to epo]PGRI	PGRI	EP
2011-03-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2005-03-09	Notice that the entry in the register 'licence of right' was cancelled (sect. 47/1977)747C	747C	GB
2004-08-04	Applic. under sect. 47(1) by a proprietor to cancel an entry747D	747D	GB
2003-06-06	Patent endorsed licences of rightsD6	D6	FR
2003-04-23	Register noted 'licences of right' (sect. 46/1977)746	746	GB
2002-10-23	No opposition filedOpposition26N	26N	EP
2002-09-06	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2002-09-06	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2002-03-01	Definitive protectionFG2A	FG2A	ES
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
2001-12-06	Corresponds to:REF	REF	EP
2001-10-31	Designated contracting statesAK	AK	EP
2001-09-14	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2001-05-28	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH	GRAH	EP
2001-02-01	Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG	GRAG	EP
2001-02-01	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH	GRAH	EP
2000-11-30	Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG	GRAG	EP
1999-12-29	First examination report despatched17Q	17Q	EP
1999-12-08	Request for examination filed17P	17P	EP
1999-04-14	Designated contracting statesAK	AK	EP
1999-02-26	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1997-10-22	Designated contracting statesAK	AK	EP
1997-09-05	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Method of controlling viewability of a display screen and a device therefor

Abstract

Term

Priority claims3

Members11

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Events

Numbers

Titles3

Classification

Designated states5