KR960001833A - LCD - Google Patents

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Publication number
KR960001833A
KR960001833A KR1019940013407A KR19940013407A KR960001833A KR 960001833 A KR960001833 A KR 960001833A KR 1019940013407 A KR1019940013407 A KR 1019940013407A KR 19940013407 A KR19940013407 A KR 19940013407A KR 960001833 A KR960001833 A KR 960001833A
Authority
KR
South Korea
Prior art keywords
liquid crystal
domain
display device
crystal display
crystal molecules
Prior art date
Application number
KR1019940013407A
Other languages
Korean (ko)
Other versions
KR100259190B1 (en
Inventor
김욱성
Original Assignee
이헌조
엘지전자 주식회사
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.)
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Publication date
Application filed by 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940013407A priority Critical patent/KR100259190B1/en
Publication of KR960001833A publication Critical patent/KR960001833A/en
Application granted granted Critical
Publication of KR100259190B1 publication Critical patent/KR100259190B1/en

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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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations

Abstract

본 발명은 액정표시소자에 관한 것으로, 종래 액정표시소자는 상하 투명전극에 전압이 인가되면 트위스트된 액정분자들의 배열상태가 변화되면서 액정분자들이 전체적으로 전기장방향으로 일어서게 되는데, 이 경우 액정층의 선광성이 줄어들어 상,하 편광판을 90°로 배치했을 때 엇갈려진 편광판의 특성만 느끼게 되어 전압에 따라 어두운(Dark)상태가 점점 더해지는 문제점이 있었다.The present invention relates to a liquid crystal display device. In the conventional liquid crystal display device, when voltage is applied to the upper and lower transparent electrodes, the arrangement state of the twisted liquid crystal molecules is changed so that the liquid crystal molecules generally rise in the electric field direction. When the upper and lower polarizers are reduced to 90 °, only the characteristics of the polarizers are staggered, so that the dark state gradually increases depending on the voltage.

본 발명은 이러한 문제점을 해결하기 위하여 인접한 4 개의 픽셀(Pixel) 또는 한 픽셀내의 4 개의 도메인(Domain)의 방향을 달리하여 한 픽셀(또는 도메인)의 좁은 시야각을 인접한 픽셀(또는 도메인)이 보완시키도록 하여 전체 시야각특성을 향상시키는 액정표시 소자를 제공하는 것이다.In order to solve this problem, the present invention compensates for the narrow viewing angle of one pixel (or domain) by the adjacent pixels (or domains) by changing directions of four adjacent pixels or four domains within one pixel. It is to provide a liquid crystal display device that improves the overall viewing angle characteristics.

Description

액정표시소자LCD

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1 도는 일반적인 액정표시소자의 구성도.1 is a block diagram of a general liquid crystal display device.

제 2 도는 전압 인가시 종래 액정표시소자의 액정분자 배열상태도.2 is a diagram illustrating arrangement of liquid crystal molecules of a conventional liquid crystal display when voltage is applied.

제 3 도는 본 발명에 있어 인접한 4-픽셀의 상, 하 배향막에 대한 액정분자방향 표시도.FIG. 3 is a liquid crystal molecular display diagram of an adjacent 4-pixel up and down alignment film according to the present invention.

제 4 도는 본 발명에 있어 한 픽셀내 4-도메인의 상, 하 배향막에 대한 액정분자방향 표시도.4 is a liquid crystal molecular display of the upper and lower alignment layers of 4-domain in one pixel according to the present invention.

제 5 도는 전압 인가시 본 발명에 따른 중간평면내 액정분자의 배열 상태도.5 is an arrangement state diagram of in-plane liquid crystal molecules according to the present invention when a voltage is applied.

제 6 도는 제 4 도에 대한 다른 실시예도.6 is another embodiment of FIG. 4;

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 픽셀 11, 21 : 상배향막 액정분자10: pixel 11, 21: phase alignment liquid crystal molecules

12, 22 : 하배향막 액정분자 13 : 상배향막12, 22: lower alignment layer liquid crystal molecules 13: upper alignment layer

14 : 하배향막 20 : 도메인14: lower orientation film 20: domain

23 : 중간평면 액정분자23: middle plane liquid crystal molecules

Claims (3)

인접한 4 개의 픽셀 갖는 액정표시소자에 있어서, 상,하 배향막의 액정분자가 우측상단 도메인에서는 (±(0°+ ∂), ±(-90°+ ∂)), 우측하단 도메인에서는 (±(-270°+ ∂), ±(+90°+ ∂)), 좌측하단 도멘인에서는 (±(0°+ ∂), ±(-90°+ ∂)), 좌측상단 도메인에서는 (±(-270°+ ∂), ±(+90°+ ∂)), (단, 0°≤ ∂ 〈 360°)방향을 갖도록 배향시키는 것을 특징으로 하는 액정표시소자.In the liquid crystal display device having four adjacent pixels, the liquid crystal molecules of the upper and lower alignment layers are (± (0 ° + ∂), ± (-90 ° + ∂)) in the upper right domain, and (± (- 270 ° + ∂), ± (+ 90 ° + ∂)), (± (0 ° + ∂), ± (-90 ° + ∂)) in the lower left domain, (± (-270 ° in the upper left domain) + ∂), ± (+ 90 ° + ∂)), and (0 ° ≤ ∂ <360 °). 한 픽셀내에서 4 개의 도메인을 갖는 액정표시소자에 있어서, 상,하 배향막의 액정분자가 우측상단 도메인에서는 (±(0°+ ∂), ±(-90°+ ∂)), 우측하단 도메인에서는 (±(-270°+ ∂), ±(+90°+ ∂)), 좌측하단 도메인에서는 (±(0°+ ∂), ±(-90°+ ∂)), 좌측상단 도메인에서는 (±(-270°+ ∂), ±(+90°+ ∂))(단, 0°≤ ∂ 〈 360°)방향을 갖도록 배향시키는 것을 특징으로 하는 액정표시소자.In a liquid crystal display device having four domains within one pixel, the liquid crystal molecules of the upper and lower alignment layers are (± (0 ° + ∂), ± (-90 ° + ∂)) in the upper right domain and in the lower right domain. (± (-270 ° + ∂), ± (+ 90 ° + ∂)), (± (0 ° + ∂), ± (-90 ° + ∂)) in the lower left domain, and (± ( And (270 ° + ∂), ± (+ 90 ° + ∂)) (where 0 ° ≤ ∂ <360 °). 제 2 항에 있어서, 상 배향막의 액정분자는 프리틸트(Pretilt)없이 배향시키고, 하 배향막의 액정분자는 우측상단 도메인에서는 ±(-90°+ ∂), 우측하단 도메인에서는 ±(+90°+ ∂), 좌측하단 도메인에서는 ±(-90°+ ∂), 좌측상단 도메인에서는 ±(+90°+ ∂)(단, 0°≤ ∂ 〈 360°)방향을 갖도록 배향시키는 것을 특징으로 하는 액정표시소자.The liquid crystal molecules of the upper alignment layer are aligned without pretilt, and the liquid crystal molecules of the lower alignment layer are ± (−90 ° + ∂) in the upper right domain and ± (+ 90 ° + in the lower right domain. ∂), ± (-90 ° + ∂) in the lower left domain, and ± (+ 90 ° + ∂) in the upper left domain (where 0 ° ≤ ∂ <360 °). device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940013407A 1994-06-14 1994-06-14 Liquid crystal display device KR100259190B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940013407A KR100259190B1 (en) 1994-06-14 1994-06-14 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940013407A KR100259190B1 (en) 1994-06-14 1994-06-14 Liquid crystal display device

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KR960001833A true KR960001833A (en) 1996-01-25
KR100259190B1 KR100259190B1 (en) 2000-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471768B1 (en) * 1998-01-21 2005-08-01 삼성전자주식회사 Liquid Crystal Display and Manufacturing Method Thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471768B1 (en) * 1998-01-21 2005-08-01 삼성전자주식회사 Liquid Crystal Display and Manufacturing Method Thereof

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KR100259190B1 (en) 2000-06-15

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