JPH0244317A - Liquid crystal display device with auxiliary capacity - Google Patents

Liquid crystal display device with auxiliary capacity

Info

Publication number
JPH0244317A
JPH0244317A JP19442188A JP19442188A JPH0244317A JP H0244317 A JPH0244317 A JP H0244317A JP 19442188 A JP19442188 A JP 19442188A JP 19442188 A JP19442188 A JP 19442188A JP H0244317 A JPH0244317 A JP H0244317A
Authority
JP
Japan
Prior art keywords
formed
capacity
auxiliary
auxiliary capacity
electrode
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.)
Pending
Application number
JP19442188A
Inventor
Etsuko Kimura
Akio Mimura
Takashi Suzuki
Masaru Watanabe
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19442188A priority Critical patent/JPH0244317A/en
Publication of JPH0244317A publication Critical patent/JPH0244317A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To sufficiently compensate a leak current of a switching element or a liquid crystal cell and to improve the reliability of a picture quality by constituting an auxiliary capacity by laminating plural capacities and connecting them in parallel.
CONSTITUTION: As for an auxiliary capacity 5, the source side is placed in a shape that two pieces of electrodes are arranged in parallel, and a common electrode of the other side is connected by an auxiliary conductor 7, and the potential is fixed. In the auxiliary capacity 5, an auxiliary capacity use transparent electrode 10, an auxiliary capacity use insulating film 13 and an auxiliary capacity use common electrode 14 are formed, and one capacity is formed thereby. Subsequently, a layer insulating film 15 is formed, and by opening a contact window, a picture element use transparent electrode 17 is formed, and by the same material, a signal electrode 1 (drain electrode), a source electrode 16 and the auxiliary capacity use auxiliary conductor 7 are formed. In such a process, a second capacity is formed, and connected in parallel to the capacity which is embedded thereunder. In such a way, a large auxiliary capacity can be formed without increasing the number of processes, and the reliability of a picture quality of a liquid crystal display device can be raised.
COPYRIGHT: (C)1990,JPO&Japio
JP19442188A 1988-08-05 1988-08-05 Liquid crystal display device with auxiliary capacity Pending JPH0244317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19442188A JPH0244317A (en) 1988-08-05 1988-08-05 Liquid crystal display device with auxiliary capacity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19442188A JPH0244317A (en) 1988-08-05 1988-08-05 Liquid crystal display device with auxiliary capacity

Publications (1)

Publication Number Publication Date
JPH0244317A true JPH0244317A (en) 1990-02-14

Family

ID=16324326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19442188A Pending JPH0244317A (en) 1988-08-05 1988-08-05 Liquid crystal display device with auxiliary capacity

Country Status (1)

Country Link
JP (1) JPH0244317A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03288824A (en) * 1990-04-05 1991-12-19 Sharp Corp Active matrix display device
US5208690A (en) * 1990-03-24 1993-05-04 Sony Corporation Liquid crystal display having a plurality of pixels with switching transistors
WO1999028784A1 (en) * 1997-11-28 1999-06-10 Matsushita Electric Industrial Co., Ltd. Reflection-type display device and image device using reflection-type display device
JP2000284722A (en) * 1999-01-29 2000-10-13 Semiconductor Energy Lab Co Ltd Semiconductor device and its manufacture
US6259117B1 (en) 1994-06-02 2001-07-10 Semiconductor Energy Laboratory Co., Ltd. Active matrix display having storage capacitor associated with each pixel transistor
US6404474B1 (en) 1998-07-24 2002-06-11 Nec Corporation Horizontal electric field LCD with increased capacitance between pixel and common electrodes
JP2002182244A (en) * 2000-12-15 2002-06-26 Semiconductor Energy Lab Co Ltd Semiconductor device and its manufacturing method
US6566684B1 (en) 1994-06-13 2003-05-20 Semiconductor Energy Laboratory Co., Ltd. Active matrix circuit having a TFT with pixel electrode as auxiliary capacitor
US6825496B2 (en) 2001-01-17 2004-11-30 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
JP2009003187A (en) * 2007-06-21 2009-01-08 Hitachi Displays Ltd Liquid crystal display device
JP2009058913A (en) * 2007-09-04 2009-03-19 Hitachi Displays Ltd Liquid crystal display device
CN102213880A (en) * 2010-04-05 2011-10-12 精工爱普生株式会社 Electro-optical device and electronic apparatus
JP2013178523A (en) * 2013-03-25 2013-09-09 Japan Display Inc Liquid crystal display device
JP2017116959A (en) * 1999-04-27 2017-06-29 株式会社半導体エネルギー研究所 EL display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132191A (en) * 1981-02-10 1982-08-16 Suwa Seikosha Kk Active matrix substrate
JPS57205778A (en) * 1981-06-12 1982-12-16 Suwa Seikosha Kk Color liquid crystal display body
JPS5933877A (en) * 1982-08-19 1984-02-23 Seiko Epson Corp Active matrix substrate
JPS6370832A (en) * 1986-09-12 1988-03-31 Seiko Epson Corp Active matrix panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132191A (en) * 1981-02-10 1982-08-16 Suwa Seikosha Kk Active matrix substrate
JPS57205778A (en) * 1981-06-12 1982-12-16 Suwa Seikosha Kk Color liquid crystal display body
JPS5933877A (en) * 1982-08-19 1984-02-23 Seiko Epson Corp Active matrix substrate
JPS6370832A (en) * 1986-09-12 1988-03-31 Seiko Epson Corp Active matrix panel

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208690A (en) * 1990-03-24 1993-05-04 Sony Corporation Liquid crystal display having a plurality of pixels with switching transistors
JPH03288824A (en) * 1990-04-05 1991-12-19 Sharp Corp Active matrix display device
US7148506B2 (en) 1994-06-02 2006-12-12 Semiconductor Energy Laboratory Co., Ltd. Active matrix display and electrooptical device
US6885027B2 (en) 1994-06-02 2005-04-26 Semiconductor Energy Laboratory Co., Ltd. Active matrix display and electrooptical device
US6259117B1 (en) 1994-06-02 2001-07-10 Semiconductor Energy Laboratory Co., Ltd. Active matrix display having storage capacitor associated with each pixel transistor
US6297518B1 (en) 1994-06-02 2001-10-02 Semiconductor Energy Laboratory Co., Ltd. Active matrix display and electrooptical device
US6495858B1 (en) 1994-06-02 2002-12-17 Semiconductor Energy Laboratory Co., Ltd. Active matrix display device having thin film transistors
US7459724B2 (en) 1994-06-02 2008-12-02 Semiconductor Energy Laboratory Co., Ltd. Active matrix display and electrooptical device
US6566684B1 (en) 1994-06-13 2003-05-20 Semiconductor Energy Laboratory Co., Ltd. Active matrix circuit having a TFT with pixel electrode as auxiliary capacitor
US7479657B2 (en) 1994-06-13 2009-01-20 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device including active matrix circuit
US7161178B2 (en) 1994-06-13 2007-01-09 Semiconductor Energy Laboratory Co., Ltd. Display device having a pixel electrode through a second interlayer contact hole in a wider first contact hole formed over an active region of display switch
WO1999028784A1 (en) * 1997-11-28 1999-06-10 Matsushita Electric Industrial Co., Ltd. Reflection-type display device and image device using reflection-type display device
US6404474B1 (en) 1998-07-24 2002-06-11 Nec Corporation Horizontal electric field LCD with increased capacitance between pixel and common electrodes
JP2000284722A (en) * 1999-01-29 2000-10-13 Semiconductor Energy Lab Co Ltd Semiconductor device and its manufacture
JP2017116959A (en) * 1999-04-27 2017-06-29 株式会社半導体エネルギー研究所 EL display device
JP2002182244A (en) * 2000-12-15 2002-06-26 Semiconductor Energy Lab Co Ltd Semiconductor device and its manufacturing method
US7242024B2 (en) 2001-01-17 2007-07-10 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US9171896B2 (en) 2001-01-17 2015-10-27 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US6825496B2 (en) 2001-01-17 2004-11-30 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US7808002B2 (en) 2001-01-17 2010-10-05 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US10263059B2 (en) 2001-01-17 2019-04-16 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US9911801B2 (en) 2001-01-17 2018-03-06 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US9679955B2 (en) 2001-01-17 2017-06-13 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US8952385B1 (en) 2001-01-17 2015-02-10 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US9324775B2 (en) 2001-01-17 2016-04-26 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
JP2009003187A (en) * 2007-06-21 2009-01-08 Hitachi Displays Ltd Liquid crystal display device
US8879036B2 (en) 2007-09-04 2014-11-04 Japan Display Inc. Liquid crystal display device comprising first and second electrodes wherein the second electrode is connected with a source electrode without passing through a first insulating film
US8368830B2 (en) 2007-09-04 2013-02-05 Hitachi Displays, Ltd. Liquid crystal display device having first, second, and third transparent electrodes wherein a second region of the second electrode protrudes from a first region
US8253873B2 (en) 2007-09-04 2012-08-28 Hitachi Displays, Ltd. Liquid crystal display device having first, second, and third transparent electrodes that form first and second storage capacitors
US9261747B2 (en) 2007-09-04 2016-02-16 Japan Display Inc. Liquid crystal display device comprising a transparent pixel electrode connected with a thin film transistor through a contact hole and a transparent counter electrode having multiple slits
JP2009058913A (en) * 2007-09-04 2009-03-19 Hitachi Displays Ltd Liquid crystal display device
US10409122B2 (en) 2007-09-04 2019-09-10 Japan Display Inc. Liquid crystal display device comprising a metal wiring in contact with a counter electrode and a transparent electrode at a contact hole
JP2011221071A (en) * 2010-04-05 2011-11-04 Seiko Epson Corp Electro-optic device and electronic equipment
CN102213880A (en) * 2010-04-05 2011-10-12 精工爱普生株式会社 Electro-optical device and electronic apparatus
CN102213880B (en) * 2010-04-05 2015-09-02 精工爱普生株式会社 The electro-optical device and electronic apparatus
JP2013178523A (en) * 2013-03-25 2013-09-09 Japan Display Inc Liquid crystal display device

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