FR2256490B1 - - Google Patents

Info

Publication number: FR2256490B1
Authority: FR; France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

FR7443316A

Other languages

Other versions

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

RCA Corp

Original Assignee

RCA Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1974-01-02

Filing date

1974-12-30

Publication date

1979-07-27

1974-12-30 Application filed by RCA Corp filed Critical RCA Corp

1975-07-25 Publication of FR2256490A1 publication Critical patent/FR2256490A1/fr

1979-07-27 Application granted granted Critical

1979-07-27 Publication of FR2256490B1 publication Critical patent/FR2256490B1/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1365—Active matrix addressed cells in which the switching element is a two-electrode device

Landscapes

Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Mathematical Physics (AREA)
Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Microelectronics & Electronic Packaging (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Liquid Crystal (AREA)
Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Liquid Crystal Display Device Control (AREA)
Liquid Crystal Substances (AREA)

FR7443316A 1974-01-02 1974-12-30 Expired FR2256490B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US43021074A	1974-01-02	1974-01-02

Publications (2)

Publication Number	Publication Date
FR2256490A1 FR2256490A1 (en)	1975-07-25
FR2256490B1 true FR2256490B1 (en)	1979-07-27

Family

ID=23706536

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7443316A Expired FR2256490B1 (en)	1974-01-02	1974-12-30

Country Status (10)

Country	Link
JP (1)	JPS5234919B2 (en)
KR (1)	KR790000469B1 (en)
CA (1)	CA1017041A (en)
DE (1)	DE2460916A1 (en)
ES (1)	ES433332A1 (en)
FR (1)	FR2256490B1 (en)
GB (1)	GB1448528A (en)
IT (1)	IT1025806B (en)
NL (1)	NL7417027A (en)
SU (1)	SU652914A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4233603A (en) *	1978-11-16	1980-11-11	General Electric Company	Multiplexed varistor-controlled liquid crystal display
US4251136A (en) *	1979-07-25	1981-02-17	Northern Telecom Limited	LCDs (Liquid crystal displays) controlled by thin film diode switches
JPH0617957B2 (en) *	1985-05-15	1994-03-09	セイコー電子工業株式会社	Liquid crystal display
US4828370A (en) *	1985-10-04	1989-05-09	Seiko Instruments & Electronics Ltd.	Switching element with nonlinear resistive, nonstoichiometric material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5240699U (en) *	1975-09-17	1977-03-23

1974
- 1974-11-18 IT IT29569/74A patent/IT1025806B/en active
- 1974-12-05 CA CA215,331A patent/CA1017041A/en not_active Expired
- 1974-12-09 KR KR7404222A patent/KR790000469B1/en not_active Expired
- 1974-12-19 GB GB5488874A patent/GB1448528A/en not_active Expired
- 1974-12-21 DE DE19742460916 patent/DE2460916A1/en not_active Withdrawn
- 1974-12-26 ES ES433332A patent/ES433332A1/en not_active Expired
- 1974-12-27 JP JP50004181A patent/JPS5234919B2/ja not_active Expired
- 1974-12-30 FR FR7443316A patent/FR2256490B1/fr not_active Expired
- 1974-12-31 NL NL7417027A patent/NL7417027A/en not_active Application Discontinuation
- 1974-12-31 SU SU742096264A patent/SU652914A3/en active

Also Published As

Publication number	Publication date
JPS50102293A (en)	1975-08-13
NL7417027A (en)	1975-07-04
DE2460916A1 (en)	1975-07-10
IT1025806B (en)	1978-08-30
JPS5234919B2 (en)	1977-09-06
KR790000469B1 (en)	1979-05-20
ES433332A1 (en)	1976-12-16
CA1017041A (en)	1977-09-06
FR2256490A1 (en)	1975-07-25
SU652914A3 (en)	1979-03-15
AU7682674A (en)	1976-06-24
GB1448528A (en)	1976-09-08

Publication	Publication Date	Title
FR2262975A1 (en)	1975-10-03
FR2258020A1 (en)	1975-08-08
FR2269020A1 (en)	1975-11-21
FR2270621B1 (en)	1980-10-31
FR2263061B1 (en)	1977-09-30
FR2256490B1 (en)	1979-07-27
FR2264823A1 (en)	1975-10-17
DK142675A (en)	1975-10-13
FR2266963B3 (en)	1977-12-02
FR2263856B1 (en)	1979-10-19
FR2265246B1 (en)	1976-10-08
FR2259378B3 (en)	1976-11-19
AU6717074A (en)	1975-10-02
CS170986B1 (en)	1976-09-15
CS170035B1 (en)	1976-08-27
CH572863A5 (en)	1976-02-27
BG21690A2 (en)	1976-09-20
DD115173A1 (en)	1975-09-12
DD113209A1 (en)	1975-05-20
BE332773A (en)
BG21509A1 (en)	1976-07-20
CH613237A5 (en)	1979-09-14
BG21554A1 (en)	1976-07-20
BG22586A1 (en)	1977-04-20
BG22560A1 (en)	1977-04-20

Legal Events

Date	Code	Title	Description
1994-10-28	ST	Notification of lapse