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KR970706535A - 추가 표시영역을 가지는 전기적으로 제어된 복굴절 액정표시장치 및 그것을 구동시키는 방법(electrically controlled birifringence liquid crystal display havingre display areas and method of driving the same) - Google Patents

추가 표시영역을 가지는 전기적으로 제어된 복굴절 액정표시장치 및 그것을 구동시키는 방법(electrically controlled birifringence liquid crystal display havingre display areas and method of driving the same) Download PDF

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KR970706535A
KR970706535A KR1019970702307A KR19970702307A KR970706535A KR 970706535 A KR970706535 A KR 970706535A KR 1019970702307 A KR1019970702307 A KR 1019970702307A KR 19970702307 A KR19970702307 A KR 19970702307A KR 970706535 A KR970706535 A KR 970706535A
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display
color
liquid crystal
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KR100259607B1 (ko
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마사유키 시미즈
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가시오 가즈오
가시오게산키 가부시키가이샤
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    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
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    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
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    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
    • G09G5/222—Control of the character-code memory
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
    • G09G5/30—Control of display attribute
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/34—Colour display without the use of colour mosaic filters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0491—Use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or electrically controlled bi-refringence [ECB] for controlling the color
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/024—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour registers, e.g. to control background, foreground, surface filling

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  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

전기적으로 제어된 복굴절형 액정표시패널은 픽토그래프(pictogragh)표시영역 및 문자표시영역을 가지고 있다. 문자코드는 DDRAM(301)에 저장되고 문자의 표시컬러를 지시하는 컬러속성데이타는 문자표시영역과 1대 1관계에서 CCRAM(302)에 저장된다. DDRAM(301)에 저장된 문자코드용 문자패턴은 문자발생기(303)로 부터 판독되고, 동시에 CCRAM(304)에 있는 컬러속성데이타가 판독된다. 세그먼트 드라이버(407)는, 임의의 컬러로 문자를 표시하기 위해, 문자패턴 및 컬러속성데이타에 근거한 액정표시패널에 전압이 적용되도록 제어하고 픽토그래프(pictograph)를 구성하는 각 화소의 표시컬러를 지정하는 컬러속성데이터는 픽토(picto)RAM(302)에 지정된다. 각 세그먼트의 컬러속성데이타는 픽토그래프를 표시하는 시간에 픽토RAM(302)으로부터 판독되고, 세그먼트 드라이버(407)는, 픽토그래프 표시영역상에 픽토그래프를 표시하기 위해, 이 컬러속성데이타에 따라 액정표시패널에 적용되도록 전압을 제어한다.

Description

추가 표시영역을 가지는 전기적으로 제어된 복굴절 액정표시장치 및 그것을 구동시키는 방법(ELECTRICALLY CONTROLLED BIRIFRINGENCE LIQUID CRYSTAL DISPLAY HAVINGRE DISPLAY AREAS AND METHOD OF DRIVING THE SAME)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 따른 컬러 액정표시장치의 액정표시패널의 단면도, 제2도는 일실시예에 따른 액정표시패널에서 각 구성 요소의 대해서 배열 필름상에 실행된 배열처리의 방향의 결합, 제동판의 광축 및 편광판의 투과축을 예시하는 전형적인 개략도, 제4도는 일실시예에 따른 컬러 액정표시장치의 일반적인 구조를 도시하는 블록도.

Claims (20)

  1. 적용된 전압에 따라 다른 컬러를 표시하며, 적어도 2개의 표시영역(3b,3c)을 가지는 액정표시패널(3)과; 상기의 적어도 2개의 표시영역(3b,3c)에서 표시컬러를 각각 지정하기 위한 지정수단(301 내지 304); 및 상기 지정수단(301 내지 304)에 의해 지정된 표시컬러에 따라 상기의 적어도 2개의 표시영역(3b,3c)에 각각 구동신호를 발생시키고, 상기 액정표시패널(3)에 상기 구동신호를 적용시키고, 그것에 의해 상기의 적어도 2개의 표시영역(3b,3c)상에 상기 지정수단(301 내지 304)에 의해 지정된 컬러를 표시하기 위한 구동수단(400)을 포함하는 것을 특징으로 하는 액정표시장치.
  2. 제1항에 있어서, 상기 액정표시패널(3)의 상기의 적어도 2개의 표시영역(3b,3c)은 복수의 화소를 포함하는 화상을 표시하기 위한 제1표시영역(3b) 및 적어도 한 개의 화소를 포함하는 화상을 표시하기 위한 제2표시영역(3c)을 포함하며; 상기 지정수단은 상기 제1표시영역용 표시화상, 표시컬러 및 표시위치를 지정하기 위한 수단(301,303,304)과 상기 제2표시영역(3c)용 표시컬러를 지정하기 위한 수단(302)을 포함하는 것을 특징으로 하는 액정표시장치.
  3. 제2항에 있어서, 상기 제1표시영역(3b)은 도트 매트릭스 표시영역을 가지며, 상기 제2표시영역(3c)은 픽토그래프 표시부를 가지는 것을 특징으로 하는 액정표시장치.
  4. 제2항에 있어서, 상기 제1표시영역(3b)은 복수의 화소를 포함하는 복수의 문자를 각각 표시하기 위한 문자표시영역을 가지며; 상기 제2표시영역(3c)은 적어도 하나의 화소를 포함하는 화상을 표시하기 위한 화상 표시영역을 가지는 것을 특징으로 하는 액정표시장치.
  5. 제4항에 있어서, 상기 지정수단은 상기 문자표시영역(3b)에 관해서는 문자가 표시되도록 표시컬러 및 표시위치를 상기 구동수단(400)에 지정하고, 상기 화상 표시영역(3c)에 관해서는 화상의 표시컬러를 지정하기 위한 수단(301,303,304)을 가지는 것을 특징으로 하는 액정표시장치.
  6. 제5항에 있어서, 상기 지정수단(301 내지 304)은 각각의 상기 복수의 문자에 대해서는 상기 문자, 표시컬러 및 표시위치를 지정하고, 상기 화상을 구성하는 각 화소에 대해서는 표시컬러를 지정하는 것을 특징으로 하는 액정표시장치.
  7. 제4항에 있어서, 상기 지정수단(301 내지 304)은; 상기 액정표시패널(3)의 상기 제1표시영역(3b)이 상기 문자를 표시하는 위치와 관련하여 문자코드를 지정하기 위한 문자코드 저장수단(301)과; 상기 문자코드 저장수단(301)에 저장된 상기 문자코드와 관련하여 문자의 표시컬러 데이타를 저장하기 위한 문자컬러 데이타 저장수단(304); 및 상기 제2표시영역(3c)상에 표시되도록 화상컬러데이타를 저장하기 위한 화상컬러데이타 저장수단(302)을 포함하는 것을 특징으로 하는 액정표시장치.
  8. 제7항에 있어서, 상기 화상컬러데이타 저장수단(302)은 메모리영역에 인접할 때 또는 한 메모리영역의 비트에 인접할 때 비교적 같은 위치에서 비트로 상기 화상컬러데이타의 개개의 비트를 저장하는 것을 특징으로 하는 액정표시장치.
  9. 제7항에 있어서, 상기 문자 컬러데이타 저장수단(304) 및 상기 화상컬러데이타 저장수단(302)중에서 적어도 하나는 어떤 2p(p는 양의 정수이다)컬러를 지정하기 위한 P-비트(bit)표시컬러데이타를 저장하며; 및 상기 구동수단(400)은 상기 p-비트 표시컬러 데이타를 q가 p보다 큰 양의 정수인 q-비트 표시컬러데이타로 변환시키기 위한 수단 및 변환 후에 상기 q-비트 표시데이타에 대응하는 표시컬러로 상기 표시데이타를 표시하도록 상기 액정표시패널(3)을 구동시키기 위한 수단을 포함하는 것을 특징으로 하는 액정표시장치.
  10. 제1항에 있어서, 상기 액정표시패널(3)은 적용된 전압을 제어함으로써 액정의 제동을 변화시켜 표시컬러를 바꾸는 반사형의 액정표시장치로 구성되는 것을 특징으로 하는 액정표시장치.
  11. 적용된 전압에 따라 다른 컬러를 표시하기 위한 액정표시장치를 구동시키는 방법에 있어서, 상기 액정표시패널(3)은 적어도 2개의 표시영역(3b,3c)을 가지며, 상기 방법은; 상기의 적어도 2개의 표시영역(3b,3c)에 표시컬러를 지정하는 단계; 및 표시컬러 지정에 따라 상기의 적어도 2개의 표시영역(3b,3c)에 각각 구동신호를 발생시켜, 상기 액정표시패널(3)에 상기 구동신호를 적용시켜, 그것에 의해 상기의 적어도 2개의 표시영역(3b,3c)상에 지정컬러를 표시하는 단계를 포함하는 것을 특징으로 하는 방법.
  12. 제11항에 있어서, 상기 액정표시패널(3)의 상기의 적어도 2개의 표시영역(3b,3c)은 복수의 화소를 포함하는 화상을 표시하기 위한 제1표시영역(3b) 및 적어도 하나의 화소를 포함하는 화상을 표시하기 위한 제2표시영역(3c)을 포함하며; 상기 지정단계는 제1표시영역(3c)에 대해서는 표시화상, 표시컬러 및 표시 위치를 지정하며 제2표시영역(3c)에 대해서는 표시컬러를 지정하는 것을 특징으로 하는 방법.
  13. 제12항에 있어서, 상기 제1표시여역(3b)은 도트 매트릭스(dot matrix)표시영역을 가지며, 상기 제2표시영역(3c)은 픽토그래프(pictograph)표시부를 가지는 것을 특징으로 하는 방법.
  14. 제12항에 있어서, 상기 제1표시영역(3b)은 복수의 화소를 포함하는 복수의 문자를 각각 표시하기 위한 문자표시영역을 가지며; 상기 제2표시영역(3c)은 적어도 하나의 화소를 포함하는 화상을 표시하기 위한 화상 표시영역을 가지는 것을 특징으로 하는 방법.
  15. 제14항에 있어서, 상기 지정단계는, 상기 문자표시영역(3b)에 관해서는 문자가 표시되도록 표시컬러 및 표시위치를 지정하고, 상기 화상표시영역(3c)에 관해서는 화상컬러표시를 지정하는 것을 특징으로 하는 방법.
  16. 제15항에 있어서, 상기 지정단계는 상기 복수의 문자 각각에 대해서는 상기 문자, 표시컬러 및 표시위치를 지정하고, 상기 화상을 구성하는 각 화소를 위한 상기 표시컬러를 지정하는 것을 특징으로 하는 방법.
  17. 제14항에 있어서, 상기 지정단계는 상기 액정표시패널(3)이 상기 문자를 표시하는 위치와 관련하여 문자코드 저장수단(301)에 문자코드를 저장하고, 상기 문자코드 저장수단(301)에 저장된 상기 문자코드와 관련하여 문자컬러데이타 저장수단(304)에 문자의 표시컬러데이타를 저장하고, 화상컬러데이타 저장수단(302)에서 상기 제2표시영역상에 표시되도록 화상컬러를 저장하는 단계를 포함하며, 상기 구동단계는 상기 문자코드 저장수단(301), 상기 문자컬러데이타 저장수단 및 상기 화상컬러데이타 저장수단(302)에 저장된 데이타를 근거로 상기 액정표시패널(3)을 구동시키는 단계를 포함하는 것을 특징으로 하는 방법.
  18. 제17항에 있어서, 상기 화상컬러데이타의 개개의 비트는 메모리영역에 인접할 때 또는 한 메모리영역에 있는 비트에 인접할 때 각각 같은 위치에서 비트로 저장되는 것을 특징으로 하는 방법.
  19. 제17항에 있어서, 상기 지정단계는 상기 문자 컬러데이타 저장수단 및 상기 화상컬러데이타 저장수단중의 적어도 하나에 어떤 2p컬러를 지정하기 위한 P-비트 컬러데이타를 저장하며; 상기 구동단계는 상기 p-비트 표시컬러 데이타를 q-비트 표시컬러데이타(q＞p)로 변환시키고 변환 후에 상기 q-비트 표시컬러데이타에 대응하는 표시컬러로 상기 표시데이타를 표시하는 것과 같은 방법으로 상기 액정표시패널을 구동시키는 것을 특징으로 하는 액정표시장치.
  20. 제11항에 있어서, 상기 액정표시패널(3)은 적용된 전압을 제어함으로써 액정의 제공을 변환시켜 표시컬러를 바꾸는 반사형의 액정표시장치로 구성되는 것을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970702307A 1995-08-08 1996-08-08 추가 표시영역을 가지는 전기적으로 제어된 복굴절 액정표시장치 및 그것을 구동시키는 방법 Expired - Fee Related KR100259607B1 (ko)

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JP28664695A JP3610418B2 (ja) 1995-08-08 1995-10-05 液晶駆動方法及び液晶表示装置
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PCT/JP1996/002248 WO1997006482A1 (en) 1995-08-08 1996-08-08 Electrically controlled birifringence liquid crystal display having more display areas and method of driving the same

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