JPH0431826A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPH0431826A
JPH0431826A JP13872390A JP13872390A JPH0431826A JP H0431826 A JPH0431826 A JP H0431826A JP 13872390 A JP13872390 A JP 13872390A JP 13872390 A JP13872390 A JP 13872390A JP H0431826 A JPH0431826 A JP H0431826A
Authority
JP
Japan
Prior art keywords
tft
gap
transparent electrode
surface
substrates
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
JP13872390A
Inventor
Setsuo Ishibashi
Mitsuru Kano
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP13872390A priority Critical patent/JPH0431826A/en
Publication of JPH0431826A publication Critical patent/JPH0431826A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136227Through-hole connection of the pixel electrode to the active element through an insulation layer

Abstract

PURPOSE: To make the gap between substrates uniform by forming a leveling layer which covers a thin film transistor (TFT) and makes the surface of the TFT flat and providing a transparent electrode and oriented film on the leveling layer.
CONSTITUTION: A leveling layer 16 which covers a thin film transistor (TFT) and makes the surface of the TFT flat is formed on the TFT formed side surface of one substrate 1 and a transparent electrode 17 composed of an ITO, etc., and oriented film 18 are formed on the flat surface of the layer 16. A contact hole 19 is provided on the source electrode 10 of the TFT 4 and the source electrode 10 is connected with the transparent electrode 17 by means of the transparent electrode material of electrode 17 passed through the contact hole. Therefore, the difference between the gap (d1) of the TFT section and gap (d2) of the display section is almost completely eliminated and the TFT is not broken even when two substrates 1 and 2 are joined to each other with spacer particles in between, and thus, the gap between the two substrates becomes uniform.
COPYRIGHT: (C)1992,JPO&Japio
JP13872390A 1990-05-29 1990-05-29 Liquid crystal display element Pending JPH0431826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13872390A JPH0431826A (en) 1990-05-29 1990-05-29 Liquid crystal display element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13872390A JPH0431826A (en) 1990-05-29 1990-05-29 Liquid crystal display element
DE19914117484 DE4117484A1 (en) 1990-05-29 1991-05-28 LCD device driven by thin film transistor - covered by levelling and aligning layers

Publications (1)

Publication Number Publication Date
JPH0431826A true JPH0431826A (en) 1992-02-04

Family

ID=15228645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13872390A Pending JPH0431826A (en) 1990-05-29 1990-05-29 Liquid crystal display element

Country Status (2)

Country Link
JP (1) JPH0431826A (en)
DE (1) DE4117484A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6011274A (en) * 1997-10-20 2000-01-04 Ois Optical Imaging Systems, Inc. X-ray imager or LCD with bus lines overlapped by pixel electrodes and dual insulating layers therebetween
US6359672B2 (en) * 1997-10-20 2002-03-19 Guardian Industries Corp. Method of making an LCD or X-ray imaging device with first and second insulating layers
US7095478B2 (en) 1996-04-12 2006-08-22 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device and method for fabricating thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1313563C (en) * 1988-10-26 1993-02-09 Makoto Sasaki Thin film transistor panel
US5042918A (en) * 1988-11-15 1991-08-27 Kabushiki Kaisha Toshiba Liquid crystal display device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7095478B2 (en) 1996-04-12 2006-08-22 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device and method for fabricating thereof
US7196749B2 (en) 1996-04-12 2007-03-27 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device and method for fabricating thereof
US7636136B2 (en) 1996-04-12 2009-12-22 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device and method for fabricating thereof
US6011274A (en) * 1997-10-20 2000-01-04 Ois Optical Imaging Systems, Inc. X-ray imager or LCD with bus lines overlapped by pixel electrodes and dual insulating layers therebetween
US6359672B2 (en) * 1997-10-20 2002-03-19 Guardian Industries Corp. Method of making an LCD or X-ray imaging device with first and second insulating layers

Also Published As

Publication number Publication date
DE4117484A1 (en) 1991-12-05

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