JPS646927A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS646927A
JPS646927A JP62163213A JP16321387A JPS646927A JP S646927 A JPS646927 A JP S646927A JP 62163213 A JP62163213 A JP 62163213A JP 16321387 A JP16321387 A JP 16321387A JP S646927 A JPS646927 A JP S646927A
Authority
JP
Japan
Prior art keywords
illumination
sensor
output
temp
source
Prior art date
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.)
Granted
Application number
JP62163213A
Other languages
Japanese (ja)
Other versions
JPH07113723B2 (en
Inventor
Yasuhiro Ukai
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.)
Hosiden Electronics Co Ltd
Original Assignee
Hosiden Electronics Co Ltd
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.)
Filing date
Publication date
Application filed by Hosiden Electronics Co Ltd filed Critical Hosiden Electronics Co Ltd
Priority to JP62163213A priority Critical patent/JPH07113723B2/en
Publication of JPS646927A publication Critical patent/JPS646927A/en
Publication of JPH07113723B2 publication Critical patent/JPH07113723B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)

Abstract

PURPOSE:To prevent the alteration in display characteristic caused by the change of use conditions such as ambient temperature and illumination, etc., by respectively forming a temp. sensor and an illumination sensor of amorphous silicon on a substrate where a thin film transistor is formed. CONSTITUTION:The voltage of a power source 42 is controlled according to an output from the temp. sensor 45, namely, the voltage of the power source of the driving transistor of a source driving circuit 41 is controlled. When the ambient temperature rises, an effective voltage impressed on the electrode of an image element lowers, and not only the contrast but also the brightness lower. But, by controlling the power source 42 according to the output from the temp. sensor 45, the amplitude of a source driving signal from the source driving circuit 41 is made large and the ON level of the liquid crystal is kept nearly constant. And the illumination sensor 54 outputs an output according to illumination of external light. Namely, according to the output from the illumination sensor 54, a dimmer 44 is controlled by a control part 61 and the illumination of the radiated light from a light source for backlight 43 is raised when the illumination of the external light 53 rises. Thus the favorable contrast can be always obtained.
JP62163213A 1987-06-29 1987-06-29 Liquid crystal display Expired - Lifetime JPH07113723B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62163213A JPH07113723B2 (en) 1987-06-29 1987-06-29 Liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163213A JPH07113723B2 (en) 1987-06-29 1987-06-29 Liquid crystal display

Publications (2)

Publication Number Publication Date
JPS646927A true JPS646927A (en) 1989-01-11
JPH07113723B2 JPH07113723B2 (en) 1995-12-06

Family

ID=15769449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163213A Expired - Lifetime JPH07113723B2 (en) 1987-06-29 1987-06-29 Liquid crystal display

Country Status (1)

Country Link
JP (1) JPH07113723B2 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003759A1 (en) * 1989-09-11 1991-03-21 Grid Systems Corporation Lcd contrast adjustment system
JPH03274020A (en) * 1990-03-23 1991-12-05 Nippon Seiki Co Ltd Liquid crystal display device
JPH0434519A (en) * 1990-05-31 1992-02-05 Nippon Seiki Co Ltd Liquid crystal display device
JPH04107233U (en) * 1991-02-28 1992-09-16 日本電気ホームエレクトロニクス株式会社 liquid crystal display device
US5157525A (en) * 1989-10-27 1992-10-20 Eev Limited Control of liquid crystal display visual properties to compensate for variation in the characteristics of the liquid crystal
US5164849A (en) * 1990-10-05 1992-11-17 Allied-Signal Inc. Liquid crystal display with a fast warm up
WO1995009378A1 (en) * 1993-09-30 1995-04-06 Citizen Watch Co., Ltd. Liquid crystal projector
US5637187A (en) * 1990-09-05 1997-06-10 Seiko Instruments Inc. Light valve device making
WO1997037270A1 (en) * 1996-03-29 1997-10-09 Citizen Watch Co., Ltd. Liquid crystal display
US6172117B1 (en) 1998-02-27 2001-01-09 Akzo Nobel N.V. Biocidal preservatives
JP2002131719A (en) * 2000-10-25 2002-05-09 Sony Corp Liquid crystal display
US6414740B1 (en) 1999-06-01 2002-07-02 Nec Corporation LCD having temperature detection elements provided on an active-substrate
JP2005122187A (en) * 2003-10-15 2005-05-12 Samsung Electronics Co Ltd Electronic display device having optical sensor
WO2005057275A1 (en) * 2003-12-08 2005-06-23 Sony Corporation Liquid crystal display and backlight adjusting method
JP2005352490A (en) * 2004-06-10 2005-12-22 Samsung Electronics Co Ltd Display device and driving method thereof
US7009663B2 (en) * 2003-12-17 2006-03-07 Planar Systems, Inc. Integrated optical light sensitive active matrix liquid crystal display
JP2006201224A (en) * 2005-01-18 2006-08-03 Seiko Epson Corp Liquid crystal apparatus and electronic device
JP2006201784A (en) * 2005-01-19 2006-08-03 Samsung Electronics Co Ltd Sensor and thin film transistor array panel including the same
JP2006251806A (en) * 2005-03-08 2006-09-21 Samsung Electronics Co Ltd Display panel and liquid crystal display device having same
JP2008170509A (en) * 2007-01-09 2008-07-24 Hitachi Displays Ltd Image display device provided with dimmer function
JP2011123503A (en) * 2005-12-01 2011-06-23 Hitachi Displays Ltd Display device
US8031307B2 (en) 1997-09-02 2011-10-04 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display apparatus containing image sensor and process for producing the same
US8072444B2 (en) 2004-07-13 2011-12-06 Nec Corporation Display device and electronic apparatus using the same
US9971456B2 (en) 2002-02-20 2018-05-15 Apple Inc. Light sensitive display with switchable detection modes for detecting a fingerprint
US11073926B2 (en) 2002-02-20 2021-07-27 Apple Inc. Light sensitive display

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845522U (en) * 1981-09-19 1983-03-26 三菱電機株式会社 liquid crystal display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845522U (en) * 1981-09-19 1983-03-26 三菱電機株式会社 liquid crystal display device

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029982A (en) * 1989-09-11 1991-07-09 Tandy Corporation LCD contrast adjustment system
WO1991003759A1 (en) * 1989-09-11 1991-03-21 Grid Systems Corporation Lcd contrast adjustment system
US5157525A (en) * 1989-10-27 1992-10-20 Eev Limited Control of liquid crystal display visual properties to compensate for variation in the characteristics of the liquid crystal
JPH03274020A (en) * 1990-03-23 1991-12-05 Nippon Seiki Co Ltd Liquid crystal display device
JPH0434519A (en) * 1990-05-31 1992-02-05 Nippon Seiki Co Ltd Liquid crystal display device
US5637187A (en) * 1990-09-05 1997-06-10 Seiko Instruments Inc. Light valve device making
US6067062A (en) * 1990-09-05 2000-05-23 Seiko Instruments Inc. Light valve device
US5164849A (en) * 1990-10-05 1992-11-17 Allied-Signal Inc. Liquid crystal display with a fast warm up
JPH04107233U (en) * 1991-02-28 1992-09-16 日本電気ホームエレクトロニクス株式会社 liquid crystal display device
US5842761A (en) * 1993-09-30 1998-12-01 Citizen Watch Co., Ltd. Liquid crystal projector
WO1995009378A1 (en) * 1993-09-30 1995-04-06 Citizen Watch Co., Ltd. Liquid crystal projector
WO1997037270A1 (en) * 1996-03-29 1997-10-09 Citizen Watch Co., Ltd. Liquid crystal display
US6115091A (en) * 1996-03-29 2000-09-05 Citizen Watch Co., Ltd. Liquid crystal device with adjustable light throughput
US8031307B2 (en) 1997-09-02 2011-10-04 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display apparatus containing image sensor and process for producing the same
US6172117B1 (en) 1998-02-27 2001-01-09 Akzo Nobel N.V. Biocidal preservatives
US6414740B1 (en) 1999-06-01 2002-07-02 Nec Corporation LCD having temperature detection elements provided on an active-substrate
JP2002131719A (en) * 2000-10-25 2002-05-09 Sony Corp Liquid crystal display
US11073926B2 (en) 2002-02-20 2021-07-27 Apple Inc. Light sensitive display
US9971456B2 (en) 2002-02-20 2018-05-15 Apple Inc. Light sensitive display with switchable detection modes for detecting a fingerprint
JP2005122187A (en) * 2003-10-15 2005-05-12 Samsung Electronics Co Ltd Electronic display device having optical sensor
JPWO2005057275A1 (en) * 2003-12-08 2007-12-13 ソニー株式会社 Liquid crystal display device and backlight adjustment method
JP4706480B2 (en) * 2003-12-08 2011-06-22 ソニー株式会社 Liquid crystal display device
US8305338B2 (en) 2003-12-08 2012-11-06 Sony Corporation Liquid crystal display apparatus and backlight adjustment method
WO2005057275A1 (en) * 2003-12-08 2005-06-23 Sony Corporation Liquid crystal display and backlight adjusting method
US7009663B2 (en) * 2003-12-17 2006-03-07 Planar Systems, Inc. Integrated optical light sensitive active matrix liquid crystal display
JP2005352490A (en) * 2004-06-10 2005-12-22 Samsung Electronics Co Ltd Display device and driving method thereof
US8072444B2 (en) 2004-07-13 2011-12-06 Nec Corporation Display device and electronic apparatus using the same
JP2006201224A (en) * 2005-01-18 2006-08-03 Seiko Epson Corp Liquid crystal apparatus and electronic device
JP2006201784A (en) * 2005-01-19 2006-08-03 Samsung Electronics Co Ltd Sensor and thin film transistor array panel including the same
JP2006251806A (en) * 2005-03-08 2006-09-21 Samsung Electronics Co Ltd Display panel and liquid crystal display device having same
JP2011123503A (en) * 2005-12-01 2011-06-23 Hitachi Displays Ltd Display device
JP2008170509A (en) * 2007-01-09 2008-07-24 Hitachi Displays Ltd Image display device provided with dimmer function

Also Published As

Publication number Publication date
JPH07113723B2 (en) 1995-12-06

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