CA2006244A1 - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- CA2006244A1 CA2006244A1 CA2006244A CA2006244A CA2006244A1 CA 2006244 A1 CA2006244 A1 CA 2006244A1 CA 2006244 A CA2006244 A CA 2006244A CA 2006244 A CA2006244 A CA 2006244A CA 2006244 A1 CA2006244 A1 CA 2006244A1
- Authority
- CA
- Canada
- Prior art keywords
- liquid crystal
- display device
- crystal display
- application
- voltage
- 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.)
- Granted
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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
-
- 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
- G09G3/3607—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
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
-
- 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
- G02F2203/30—Gray scale
-
- 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
- G09G2300/0439—Pixel structures
- G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
ABSTRACT
The disclosure describes the provision of a liquid crystal display device which permits of multi-gradation display merely he the application and non-application of a voltage to a liquid crystal without increasing an area of one display unit and without the necessity for fine adjustment of the voltage applied to the liquid crystal of each pixel.
The disclosure describes the provision of a liquid crystal display device which permits of multi-gradation display merely he the application and non-application of a voltage to a liquid crystal without increasing an area of one display unit and without the necessity for fine adjustment of the voltage applied to the liquid crystal of each pixel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP320564 | 1988-12-21 | ||
JP63320564A JPH02166419A (en) | 1988-12-21 | 1988-12-21 | Liquid crystal display device |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2006244A1 true CA2006244A1 (en) | 1990-06-21 |
CA2006244C CA2006244C (en) | 1993-08-31 |
Family
ID=18122841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002006244A Expired - Fee Related CA2006244C (en) | 1988-12-21 | 1989-12-20 | Liquid crystal display device |
Country Status (5)
Country | Link |
---|---|
US (1) | US5121235A (en) |
EP (1) | EP0375269B1 (en) |
JP (1) | JPH02166419A (en) |
CA (1) | CA2006244C (en) |
DE (1) | DE68915414T2 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW228633B (en) * | 1991-01-17 | 1994-08-21 | Semiconductor Energy Res Co Ltd | |
KR940009449B1 (en) * | 1991-04-06 | 1994-10-13 | 주식회사금성사 | Color video printer |
DE69430696T2 (en) * | 1993-12-07 | 2003-01-30 | Toshiba Kawasaki Kk | MANUFACTURING METHOD FOR A DISPLAY ARRANGEMENT |
GB2286058A (en) * | 1994-01-21 | 1995-08-02 | Sharp Kk | Switchable holographic apparatus |
US5606437A (en) * | 1995-03-31 | 1997-02-25 | Rockwell International | Direct drive split pixel structure for active matrix liquid crystal displays |
JP3075134B2 (en) * | 1995-04-04 | 2000-08-07 | 株式会社日立製作所 | Reflective liquid crystal display |
JPH1068931A (en) * | 1996-08-28 | 1998-03-10 | Sharp Corp | Active matrix type liquid crystal display device |
JP2001242828A (en) | 2000-02-25 | 2001-09-07 | Internatl Business Mach Corp <Ibm> | Image display device for multigradation expression, liquid crystal display device and method of displaying image |
KR100491205B1 (en) | 2000-03-30 | 2005-05-25 | 세이코 엡슨 가부시키가이샤 | Display |
CN1191561C (en) | 2000-03-30 | 2005-03-02 | 精工爱普生株式会社 | Display |
JP2002297085A (en) * | 2001-03-30 | 2002-10-09 | Ricoh Co Ltd | Gradation display method and gradation display device |
CA2382719C (en) * | 2001-04-19 | 2005-04-12 | Spectratech Inc. | Two-dimensional monochrome bit face display |
US20050007327A1 (en) * | 2002-04-22 | 2005-01-13 | Cliff Elion | Color image display apparatus |
CN100443974C (en) * | 2005-09-30 | 2008-12-17 | 群康科技(深圳)有限公司 | Liquid-crystal display mould set |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3626241A (en) * | 1969-12-24 | 1971-12-07 | Bell Telephone Labor Inc | Gray scale gaseous display |
JPS5276897A (en) * | 1975-12-23 | 1977-06-28 | Hitachi Ltd | Half tone picture display device using liquid crystal matrix panel |
US4495492A (en) * | 1982-05-05 | 1985-01-22 | Litton Systems, Inc. | Magneto-optic chip with gray-scale capability |
JPS58220185A (en) * | 1982-06-17 | 1983-12-21 | セイコーインスツルメンツ株式会社 | Display element |
US4486785A (en) * | 1982-09-30 | 1984-12-04 | International Business Machines Corporation | Enhancement of video images by selective introduction of gray-scale pels |
JPS5961818A (en) * | 1982-10-01 | 1984-04-09 | Seiko Epson Corp | Liquid crystal display device |
CH666560A5 (en) * | 1983-03-01 | 1988-07-29 | Tadeusz Bobak | DISPLAY DEVICE. |
US4531160A (en) * | 1983-05-03 | 1985-07-23 | Itek Corporation | Display processor system and method |
JPS60188924A (en) * | 1984-03-09 | 1985-09-26 | Citizen Watch Co Ltd | Display device |
JPS60172131U (en) * | 1984-04-20 | 1985-11-14 | ホシデン株式会社 | Color LCD display |
US4712877A (en) * | 1985-01-18 | 1987-12-15 | Canon Kabushiki Kaisha | Ferroelectric display panel of varying thickness and driving method therefor |
JP2505756B2 (en) * | 1986-07-22 | 1996-06-12 | キヤノン株式会社 | Driving method of optical modulator |
GB2198869B (en) * | 1986-12-19 | 1990-08-15 | Philips Electronic Associated | Matrix display devices |
JPS63241528A (en) * | 1987-03-28 | 1988-10-06 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for optical logical operation |
US4840460A (en) * | 1987-11-13 | 1989-06-20 | Honeywell Inc. | Apparatus and method for providing a gray scale capability in a liquid crystal display unit |
US4892391A (en) * | 1988-02-16 | 1990-01-09 | General Electric Company | Method of arranging the cells within the pixels of a color alpha-numeric display device |
JPH01214898A (en) * | 1988-02-24 | 1989-08-29 | Ricoh Co Ltd | Multigradation display system |
JPH0227316A (en) * | 1988-07-15 | 1990-01-30 | Fujitsu Ltd | Liquid crystal display device |
US4921334A (en) * | 1988-07-18 | 1990-05-01 | General Electric Company | Matrix liquid crystal display with extended gray scale |
-
1988
- 1988-12-21 JP JP63320564A patent/JPH02166419A/en active Pending
-
1989
- 1989-12-13 EP EP89313058A patent/EP0375269B1/en not_active Expired - Lifetime
- 1989-12-13 DE DE68915414T patent/DE68915414T2/en not_active Expired - Fee Related
- 1989-12-20 CA CA002006244A patent/CA2006244C/en not_active Expired - Fee Related
- 1989-12-21 US US07/454,333 patent/US5121235A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE68915414T2 (en) | 1994-11-24 |
CA2006244C (en) | 1993-08-31 |
EP0375269B1 (en) | 1994-05-18 |
JPH02166419A (en) | 1990-06-27 |
EP0375269A2 (en) | 1990-06-27 |
US5121235A (en) | 1992-06-09 |
EP0375269A3 (en) | 1990-09-12 |
DE68915414D1 (en) | 1994-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |