JPS60159831A - Color liquid crystal display panel - Google Patents

Color liquid crystal display panel

Info

Publication number
JPS60159831A
JPS60159831A JP59015545A JP1554584A JPS60159831A JP S60159831 A JPS60159831 A JP S60159831A JP 59015545 A JP59015545 A JP 59015545A JP 1554584 A JP1554584 A JP 1554584A JP S60159831 A JPS60159831 A JP S60159831A
Authority
JP
Japan
Prior art keywords
liquid crystal
color
thickness
display panel
crystal layer
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
JP59015545A
Other languages
Japanese (ja)
Inventor
Hiroshi Shimizu
博 清水
Seigo Togashi
清吾 富樫
Sadao Masubuchi
貞夫 増渕
Koji Suzuki
孝治 鈴木
Yasushi Kaneko
靖 金子
Mitsumasa Miyabe
光正 宮部
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP59015545A priority Critical patent/JPS60159831A/en
Publication of JPS60159831A publication Critical patent/JPS60159831A/en
Pending legal-status Critical Current

Links

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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133371—Cells with varying thickness of the liquid crystal layer
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To improve the quality of a color liq. crystal display panel displaying natural color or limited color by changing the thickness of the liq. crystal layer correspondingly to color filters so that the thickness of parts of the layer corresponding to color filters selecting a longer wavelength is made relatively large. CONSTITUTION:A liq. crystal layer 11 is held between substrates 41, 42 having electrodes 43, 47 and orienting layers 44, 46, respectively. At this time, color filters 45 corresponding to the three primary colors R, G, B are formed on the substrate 41, and the thickness of the substrate 42 is changed by etching so as to change the thickness dR, dG, dB of the liq. crystal layer 11. The most suitable conditions include dR:dG:dB=lambdaR:lambdaG:lambdaB. The ratio among the thicknesses of the liq. crystal layer is made equal to the ratio among the selected wavelengths of three colors.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、色分離部制と液晶光スイッチで（１１，成さ
れるカラー液晶表示パネルに関し、特にパオ・ルの旋光
分散補償法に係るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a color liquid crystal display panel formed by a color separation system and a liquid crystal optical switch (11), and in particular relates to Pao Lu's optical rotation dispersion compensation method. It is something.

〔従来技術と問題点〕[Prior art and problems]

従来例を用いて旋光分散を説明する。第１図にカラー液
晶表示パネルの断面図を示す。１−６は基板、２ばねじ
れネマチック液晶（ｉ″ＮＮ液晶１を２枚の基板１．６
間に封じろゾール月、４゜５．６ばそれぞれ赤色、緑色
、青色を透過ずろフィルター、７−８．９は該フィルタ
ーと対応した位置に配設さＪｑ、だ液晶駆動用′電極、
１６は液晶駆動用の対向電極、１０．１２は液晶配向用
の配向層である。動作原理は次のとうりである。該バス
、ルは表示自答に従って、液晶駆動用電極７．８．９を
選択して信−づを印加することにより、入力光１６から
フィルター４．５．６で色分解されて得られた赤色、緑
色、青色の光強度を制御して出力光１７とすることによ
り、カラー表示を行なう。Optical rotational dispersion will be explained using a conventional example. FIG. 1 shows a cross-sectional view of a color liquid crystal display panel. 1-6 is a substrate, 2 is a twisted nematic liquid crystal (i''NN liquid crystal 1 and two substrates 1.6
A sealing filter between them, 4° 5.6 is a zero filter that transmits red, green, and blue, respectively, and 7-8.9 is a liquid crystal drive electrode arranged at a position corresponding to the filter.
16 is a counter electrode for driving the liquid crystal, and 10.12 is an alignment layer for aligning the liquid crystal. The operating principle is as follows. By selecting the liquid crystal drive electrode 7.8.9 and applying a signal according to the answer on the display, the input light 16 is separated into colors by the filter 4.5.6. Color display is performed by controlling the light intensities of red, green, and blue as output light 17.

前記従来パネルは、赤色が強調されて表示される、すな
わち表示がセピア色調となり、色再現の忠実度が著しく
低下する欠点を有してし・た。この原因は、液晶セル中
の光の旋光角従りて光の透過率が、光の波長に依存する
ことにある。第２図で説明する。赤色フィルターに対応
する電極７に４ｆｆｉ号印加し、赤色を透過させた場合
の出力光１７の光強度の印加電圧依存性を第２図２０に
示す。第２図の横４１１Ｉ１１８は印加′電圧、縦軸１
９は光強度である。緑色の場合は２１、青色の場合は２
２である。すなわち赤色は、低い印加電圧で出力され。The conventional panel has the disadvantage that the red color is displayed with emphasis, that is, the display becomes a sepia tone, and the fidelity of color reproduction is significantly reduced. The reason for this is that the angle of optical rotation of light in the liquid crystal cell, and therefore the transmittance of light, depends on the wavelength of light. This will be explained with reference to FIG. FIG. 20 shows the dependence of the light intensity of the output light 17 on the applied voltage when a voltage of 4ffi is applied to the electrode 7 corresponding to the red filter and red light is transmitted. Horizontal 411I118 in Figure 2 is the applied voltage, vertical axis 1
9 is the light intensity. 21 for green, 2 for blue
It is 2. In other words, red color is output with a low applied voltage.

青色は高い印加電圧状態で出力される。Blue color is output under high applied voltage conditions.

電圧平均化法によるマトリクス駆動では、オン画素の実
効値電圧２４とオフ画素の実効値電圧２３は、各色フィ
ルターに対応する液晶光スイッチで共通である。オン画
素の実効値電圧２４を印加した時、赤色の透過ツ０強度
は第２図の２０と２４の交点２５であり、緑色の場合の
点２６、）５ｒ色の場合の点２７より大きい。すなわち
表示ｉ＋ｊ＋ｉ像が赤味がかって見えろ不都合が生じる
。In matrix driving using the voltage averaging method, the effective value voltage 24 of the on pixel and the effective value voltage 23 of the off pixel are common to the liquid crystal optical switches corresponding to each color filter. When the effective value voltage 24 of the ON pixel is applied, the transmission power of the red color is at the intersection 25 of 20 and 24 in FIG. 2, which is greater than the point 26 for the green color and the point 27 for the )5r color. In other words, the displayed image i+j+i appears reddish, causing an inconvenience.

〔発明の目的〕[Purpose of the invention]

本発明は上記欠点を液晶層厚を各色フィルターに対応し
て変える事により解決するものであり、色町現性に優れ
た高品質のカラー液晶表ボバネルを提供する。The present invention solves the above-mentioned drawbacks by changing the thickness of the liquid crystal layer in accordance with each color filter, and provides a high-quality color liquid crystal display panel with excellent color printability.

〔発明の原理〕[Principle of the invention]

まず本発明の詳細な説明する。ＰＡ２図に示した旋光分
散は基本的には、液晶層層厚（ｌ、液晶の屈せ１率異方
性Δ１］、光波長λに対しΔ１１　（１／λが各波長λ
で異なる点に起因ｌ−ているゎ特に天然色カラー表示を
行う場合、カラーフィルターとしては赤１１．１１ＡＧ
−青Ｂの３色、選択波長で言うとおおよそ　λ　ｎ　′
！　６２０　ｎＩＩ＋１　λ　６　＝５５０　ロ。１．
　λ□二４６００ｍのものを用し・る。よって本発明で
は各色のΔｎ（１／λの差を小さく１ろ目的で（Ｉ　ｎ
＞　（ｌ　Ｇ）　ｄ　Ｉｌと設定する。最適条件は、Ｃ
ｌｌ１：（１，：（Ｉｌｌ＝λｎ　：　、Ｉａ　：λ。First, the present invention will be explained in detail. The optical rotational dispersion shown in diagram PA2 is basically calculated using the liquid crystal layer thickness (l, bending index anisotropy of liquid crystal Δ1), and Δ11 for the light wavelength λ (1/λ is the wavelength λ for each wavelength).
This is due to the difference in color.Especially when displaying natural colors, red 11.11AG is used as a color filter.
-The three colors of blue B, in terms of selected wavelength, are approximately λ n ′
! 620 nII+1 λ 6 =550 b. 1.
The one with λ□24600m is used. Therefore, in the present invention, for the purpose of reducing the difference of Δn(1/λ) of each color, (I n
> (l G) d Il. The optimal condition is C
ll1:(1,:(Ill=λn:,Ia:λ.

とする事である。最適条件に設定した際の印加電圧１８
対透過率１９特性を第３図にボす、各波長に対応する特
性は曲、％ｌ　５０　（’ｊ近でほぼ一致ずろ。That is to say. Applied voltage when set to optimal conditions18
Figure 3 shows the characteristics of transmittance 19. The characteristics corresponding to each wavelength are curved, %l 50 (approximately coincident near 'j').

本発明は以上の如き原理に基づき従来の旋光分散問題を
低減又は解決ずろものであり、以下実施例により説明す
る、。The present invention aims to reduce or solve the conventional optical rotation dispersion problem based on the above-mentioned principle, and will be explained below with reference to Examples.

〔発明の実施例〕[Embodiments of the invention]

第４図は本発明の一実施例であるカラ一液晶７層１１か
挾持されてなり、基板上には′電極４３．４７、配向層
４４．４６及び３原色＋ｔ、　Ｇ−ＩＪに対応したカラ
ーフィルグー４５が形成されている。Figure 4 shows one embodiment of the present invention, in which one color liquid crystal 7 layer 11 is sandwiched, and on the substrate are electrodes 43, 47, alignment layers 44, 46, and 3 primary colors +t, corresponding to G-IJ. A color fill goo 45 is formed.

本実施例の重機は一方の基板４２のＪＶさが部分的に異
なり、この事により液晶層厚（＋　、、　−（ｌ　Ｉｌ
、ｄｌｌを変化させている都にある。基板厚はエツチン
グ法で変化させる事がｉｉＪ能で、本実施例ではカラス
基板をフットリソグラフィー法によりフッ酸希釈液て選
択的にエツチングずろ」４により、各色０）　カラーフ
ィルター４５の位置と同期させている。In the heavy machinery of this embodiment, the JV of one of the substrates 42 is partially different, and this causes the liquid crystal layer thickness (+, -(l Il
, in the capital that is changing the dll. The thickness of the substrate can be changed by an etching method, and in this embodiment, the glass substrate is selectively etched using a diluted hydrofluoric acid solution using a foot lithography method. ing.

第５図は本発明の他θ）実施例のカラー液晶前１工、パ
ネルの断面図である。第４図の失ｈ’ｉｒｉ例と異／、
【ろ点は基板厚をエツチング法ではな（素基橡５１トに
膜ｊ卑の部分的に異なる肋膜５２を形成ずろ串により変
化させている点にある。本実施例ではｌ・１７−、　Ｊ
Ｊ１４゜としてＣＶ　ＩＪ法、スパッタ法−蒸加法等に
、ＬろＳ　ｉ（Ｊ、−Ｓ　ｉＮｘ＋Ｔ、ｉ、Ｕ５等を用
（・る１、第６図は本発明の他の実施例であるカラー液
晶表示パネルの断面図である１１本実施例ではノノラー
７ｉ＃／ｌ−Ａ１１１−Ａ１１ｆｙ＃＋ｌ１ｌ（＊に；
、を人１ｔ’７＋１Ｉｌｌ）ｌｚｒ４１（：＋＋１；し
ている。しかも各色のフィルター厚を変える事により液
晶層Ｊ’ｉ’（１＋ｔ　、　ｄｃ　、ｄｎを変化させて
いる。フィルターの上には保護膜６１を設けその上に電
極層４６、配向層４７を形成Ｉ〜ている。FIG. 5 is a cross-sectional view of a color liquid crystal display panel according to another embodiment of the present invention. Different from the case of loss of h'iri in Figure 4/,
[The point is that the thickness of the substrate is not changed by etching, but by forming partially different membranes 52 on the base plate 51 using a slotted skewer. J
As J14°, L filter Si (J, -S iNx+T, i, U5, etc. is used in CV IJ method, sputtering method-evaporation method, etc.). 11 which is a cross-sectional view of a color liquid crystal display panel.
, 1t'7+1Ill)lzr41(:++1;; Moreover, by changing the filter thickness of each color, the liquid crystal layer J'i'(1+t, dc, dn) is changed.A protective film is placed on the filter 61 is provided, and an electrode layer 46 and an alignment layer 47 are formed thereon.

〔発明の効果〕〔Effect of the invention〕

以上の各実施例で明らかな如（本発明では、液晶層厚を
各カラーフィルターに対応して変化させ、特に選択波長
の長いカラーフィルターに対応した部分の液晶層厚を相
対的に大きくする事により、従来問題となっていた旋光
分散な犬［ＩＪに改善するものであり一天然色や限定色
を表示するカラー液晶表示パネルの高品質化に極めて有
効である。As is clear from the above embodiments (in the present invention, the thickness of the liquid crystal layer is changed in accordance with each color filter, and the thickness of the liquid crystal layer is made relatively large in the portion corresponding to the color filter with a long selected wavelength). This improves the optical rotation dispersion (IJ) that has been a problem in the past, and is extremely effective in improving the quality of color liquid crystal display panels that display natural colors or limited colors.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のカラー液晶表示パネルの断面図、第２図
は従来のカラー液晶表示パネルの透過率対電圧特性、第
３図は本発明のカラー液晶表示パネルの透過率対′電圧
將性図、第４．５．６図は本発明のカラー液晶表示パネ
ルの各実施例の断面図である。 １−６．４１−４２．６３・・・・・基板、７．８．９
．１．１４’３．４７　′電極、１１・・・・・・液晶
層。 １５．６０・　・カラーフィルター、 ｃｌ、ｄＲ，ｄ、　、（１，・・・・・液晶層厚３、第
１図 第２図 第３図 第４図 第５図 ５−Figure 1 is a cross-sectional view of a conventional color liquid crystal display panel, Figure 2 is the transmittance versus voltage characteristic of the conventional color liquid crystal display panel, and Figure 3 is the transmittance versus voltage characteristic of the color liquid crystal display panel of the present invention. 4.5.6 are sectional views of each embodiment of the color liquid crystal display panel of the present invention. 1-6.41-42.63... Board, 7.8.9
．． 1.14'3.47' Electrode, 11...Liquid crystal layer. 15.60... Color filter, cl, dR, d, , (1,...Liquid crystal layer thickness 3, Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 5-

Claims (7)

【特許請求の範囲】[Claims] （１）　複数の電極を有する２枚の基板間に挾まれた液
晶層と、該電極に対応して設けられた選択波長の異なる
少なくとも２種以上のカラーフィルターよりなるカラー
液晶表示パネルに於いて、カラーフィルターの種炉に対
応して液晶層厚を変化させてなることを特徴とするカラ
ー液晶表示パネル。(1) In a color liquid crystal display panel consisting of a liquid crystal layer sandwiched between two substrates having a plurality of electrodes, and at least two or more types of color filters with different selection wavelengths provided corresponding to the electrodes. , a color liquid crystal display panel characterized in that the thickness of the liquid crystal layer is changed in accordance with the seed furnace of the color filter. （２）　液晶層厚は選択波長の長いカラーフィルターに
対応した部分を、選択波長の短かいカラーフィルタ一部
分より太き（設定してなることを特徴とする特許請求の
範囲第１項記載のカラー液晶表示パネル。(2) The liquid crystal layer according to claim 1, wherein the thickness of the liquid crystal layer is set such that a portion corresponding to a color filter having a long selection wavelength is thicker than a portion of the color filter having a short selection wavelength. LCD display panel. （３）　カラーフィルターは赤、緑、宵に対応した３種
のカラーよりなり、液晶層厚はそれぞれ赤、緑、青のカ
ラーフィルターに対応して順次小さく設定されてなるこ
とを特徴とする特許請求の範囲第１項記載のカラー液晶
表示パネル。(3) A patent characterized in that the color filter consists of three colors corresponding to red, green, and evening, and the liquid crystal layer thickness is set to become smaller in order corresponding to the red, green, and blue color filters. A color liquid crystal display panel according to claim 1. （４）　液晶層厚は２枚の基板のうち少なくとも一方の
基板の厚みをカラーフィルターに対応して異ならせる事
により変化させることを特徴とする特許請求の範囲第１
項記載のカラー液晶表示パネル。(4) The thickness of the liquid crystal layer is changed by varying the thickness of at least one of the two substrates in accordance with the color filter.
Color liquid crystal display panel described in section. （５）基板の厚みは選択的エツチングにより変化させて
なることを特徴とする特許請求の範囲第１１項記載のカ
ラー液晶表示パネル。(5) A color liquid crystal display panel according to claim 11, wherein the thickness of the substrate is changed by selective etching. （６）　基板の厚みは薄膜を部分的に形成ずろ事により
変化させてなることを特徴とする特許請求の範囲第４項
記載のカラー液晶表示パネル。(6) A color liquid crystal display panel according to claim 4, wherein the thickness of the substrate is changed by partially forming a thin film. （７）カラーフィルターは２枚の基板の内側に設けられ
ているとともに各カラーフィルターの厚みが異なる事に
より液晶層厚を変化させてなることを特徴とする特許請
求の範囲第１項記載のカラー液晶表示パネル。(7) The color filter according to claim 1, characterized in that the color filter is provided inside two substrates, and the thickness of each color filter is different so that the thickness of the liquid crystal layer is changed. LCD display panel.
JP59015545A 1984-01-31 1984-01-31 Color liquid crystal display panel Pending JPS60159831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59015545A JPS60159831A (en) 1984-01-31 1984-01-31 Color liquid crystal display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59015545A JPS60159831A (en) 1984-01-31 1984-01-31 Color liquid crystal display panel

Publications (1)

Publication Number Publication Date
JPS60159831A true JPS60159831A (en) 1985-08-21

Family

ID=11891753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59015545A Pending JPS60159831A (en) 1984-01-31 1984-01-31 Color liquid crystal display panel

Country Status (1)

Country Link
JP (1) JPS60159831A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417528U (en) * 1987-07-21 1989-01-27
JPS6429802A (en) * 1987-07-24 1989-01-31 Toppan Printing Co Ltd Color filter
US4929060A (en) * 1987-05-06 1990-05-29 Casio Computer Co., Ltd. Color liquid crystal display device
US4995702A (en) * 1986-10-31 1991-02-26 Seiko Epson Corporation Projection-type display device
US5150235A (en) * 1991-02-04 1992-09-22 Honeywell Inc. Apparatus for improving the angle of view in a liquid crystal display
US5237437A (en) * 1989-12-18 1993-08-17 Honeywell Inc. Apparatus and method for a high contrast, wide angle, color, flat panel, liquid crystal display
US5623353A (en) * 1990-10-26 1997-04-22 Ricoh Company, Ltd. Color liquid crystal device having thickness controlling layers disposed at pixel portions
US6842207B2 (en) 1996-10-29 2005-01-11 Nec Corporation Active matrix liquid crystal display panel
KR100724746B1 (en) * 2000-12-29 2007-06-04 엘지.필립스 엘시디 주식회사 Ferroelectric Liquid Crystal Display And Manufacturing Method Thereof
US7477346B2 (en) 2004-01-28 2009-01-13 Seiko Epson Corporation Transflective liquid crystal display device and electronic apparatus with slope portion between neighboring reflective and transparent pixel electrodes
CN104730760A (en) * 2015-04-08 2015-06-24 武汉华星光电技术有限公司 Color film substrate, liquid crystal display and color liquid crystal display device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995702A (en) * 1986-10-31 1991-02-26 Seiko Epson Corporation Projection-type display device
US4929060A (en) * 1987-05-06 1990-05-29 Casio Computer Co., Ltd. Color liquid crystal display device
JPS6417528U (en) * 1987-07-21 1989-01-27
JPS6429802A (en) * 1987-07-24 1989-01-31 Toppan Printing Co Ltd Color filter
US5237437A (en) * 1989-12-18 1993-08-17 Honeywell Inc. Apparatus and method for a high contrast, wide angle, color, flat panel, liquid crystal display
US5623353A (en) * 1990-10-26 1997-04-22 Ricoh Company, Ltd. Color liquid crystal device having thickness controlling layers disposed at pixel portions
US5150235A (en) * 1991-02-04 1992-09-22 Honeywell Inc. Apparatus for improving the angle of view in a liquid crystal display
US6842207B2 (en) 1996-10-29 2005-01-11 Nec Corporation Active matrix liquid crystal display panel
US6965419B2 (en) 1996-10-29 2005-11-15 Nec Corporation Active matrix liquid crystal display panel
US7139054B2 (en) 1996-10-29 2006-11-21 Nec Corporation Active matrix liquid crystal display panel having particular optical compensation layer
US7405785B2 (en) 1996-10-29 2008-07-29 Nec Corporation Transverse electric field active matrix liquid crystal display panel having particular optical compensation layer
KR100724746B1 (en) * 2000-12-29 2007-06-04 엘지.필립스 엘시디 주식회사 Ferroelectric Liquid Crystal Display And Manufacturing Method Thereof
US7477346B2 (en) 2004-01-28 2009-01-13 Seiko Epson Corporation Transflective liquid crystal display device and electronic apparatus with slope portion between neighboring reflective and transparent pixel electrodes
CN104730760A (en) * 2015-04-08 2015-06-24 武汉华星光电技术有限公司 Color film substrate, liquid crystal display and color liquid crystal display device

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