WO2007069636A1 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- WO2007069636A1 WO2007069636A1 PCT/JP2006/324826 JP2006324826W WO2007069636A1 WO 2007069636 A1 WO2007069636 A1 WO 2007069636A1 JP 2006324826 W JP2006324826 W JP 2006324826W WO 2007069636 A1 WO2007069636 A1 WO 2007069636A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- electrode
- electrodes
- crystal display
- display device
- 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.)
- Ceased
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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134336—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
- 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
-
- 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
-
- 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
-
- 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
- G09G3/3622—Control of matrices with row and column drivers using a passive matrix
-
- 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
-
- 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
Definitions
- the present invention relates to a liquid crystal display device for color display.
- the present invention has been conceived under the circumstances described above, and can achieve downsizing and cost reduction while realizing color display (including pseudo full color display).
- An object is to provide a simple liquid crystal display device.
- a plurality of first electrodes extending in the first direction and arranged at intervals in the second direction intersecting the first direction, and extending in the second direction.
- a plurality of second electrodes arranged at intervals in the first direction, a liquid crystal layer interposed between the first electrode and the second electrode, and each first electrode directly or indirectly.
- a liquid crystal display device having a plurality of pixels arranged in a matrix, comprising: a color filter that covers the first electrode; and a driver that supplies an image display signal to the first electrode and the second electrode.
- the first electrode is connected to a scanning signal supply terminal of the driver and is configured to receive a scanning signal at a constant period
- the second electrode is connected to a control signal supply terminal of the driver.
- each of the pixels corresponds to a predetermined number of adjacent first electrodes and one second electrode, and the color filters covering the predetermined number of first electrodes have different colors.
- the liquid crystal display device can display a plurality of colors.
- FIG. 2 is a schematic diagram showing a main part of the liquid crystal display device according to the first embodiment.
- FIG. 3 is an enlarged view showing a main part of the liquid crystal display device according to the first embodiment.
- FIG. 7 is a main part enlarged view showing a liquid crystal display device according to a second embodiment.
- FIG. 8 is a schematic diagram of a main part showing a liquid crystal display device according to a third embodiment of the present invention.
- each of the substrates 1A and 1B has a long rectangular shape, and is made of a transparent substrate made of glass, for example.
- the pair of substrates 1A and 1B are arranged to face each other with the liquid crystal layer 81 interposed therebetween.
- the substrate 1B is wider than the substrate 1A.
- a lighting device (not shown) is disposed below the substrate 1B.
- the pair of substrates 1A and 1B can transmit light from the illumination device.
- the outer surface of the substrate 1A provides a display surface 11.
- a space between the pair of substrates 1A and 1B is sealed with a sealing material (not shown).
- a liquid crystal layer 81 is formed in the sealed space.
- the liquid crystal layer 81 also has liquid crystal material strength such as nematic liquid crystal.
- the intensity of light transmitted through the liquid crystal layer 81 is adjusted by changing the polarization state of the liquid crystal layer 81 according to the image to be displayed. Thereby, the image display of the liquid crystal display device A1 is realized.
- first electrodes 2R and 2G are used for red light emission and green light emission, respectively.
- a certain number of first electrodes 2R and 2G adjacent to each other constitute a first electrode group 20 corresponding to one character (or a number or a symbol).
- each first electrode 2R, 2G and each second electrode 3 are covered with a protective film 82, respectively.
- the protective film 82 has a function of protecting the first electrodes 2R, 2G and the second electrode 3, and an alignment function for the liquid crystal layer 81.
- the driver 7 has image data to be displayed on the unit display section 6.
- the image data is the light emission of a plurality of pixels 5 included in each unit display section 6 prepared for each image identification code such as an ASCII code. Corresponds to the pattern.
- the driver 7 is connected to a printed circuit board 71 for receiving signals from outside the machine and supplying power.
- the control signal is selectively supplied to the second electrode 3 corresponding to the pixel 5.
- an image to be displayed in a certain unit display section 6 is green
- a scanning signal is supplied to the first electrode 2G corresponding to the pixel 5 to be turned on
- a control signal is selectively supplied to the second electrode 3.
- an image to be displayed in a certain unit display section 6 is yellow
- a scanning signal is supplied to the first electrodes 2R and 2G corresponding to the pixel 5 to be turned on
- the pixel 5 A control signal is selectively supplied to the corresponding second electrode 3.
- the scanning signal is supplied to the first electrodes 2R and 2G covered with the color filters 4R and 4G.
- the number of pixels is twice the total number of pixels 5 arranged in the X direction. 1 electrode 2R, 2G must be provided.
- the display surface 11 is long in the X direction and short in the y direction, the number of pixels in the X direction increases, so the first electrodes 2R and 2G are spaced in the X direction. If it is provided open, the number of first electrodes must be twice as many as the number of pixels.
- the number of first electrodes to be provided is far greater even if the number of first electrodes 2R, 2G that is twice the number is provided in the y direction. Less.
- the number of second electrodes 3 is the same as the number of pixels 5 arranged in the X direction.
- the number of second electrodes 3 is, for example, compared with the number of second electrodes 92R, 92G, and 92B (supplied with a plurality of gradation voltages) for each color in the conventional example shown in FIG. Remarkably few.
- the first electrode 2R corresponding to red is connected to the driver 7 via the first wiring 21R formed on the left side in the figure, while corresponding to green
- the first electrode 2G is connected to the driver 7 via a first wiring 21G formed on the right side in the figure.
- the first wiring 21R, 21G includes the second wiring 31 for the second electrode 3 which is not crowded, so that it is easy to form a wiring pattern, and an electrical failure such as a short circuit hardly occurs.
- FIGS. 5 to 7 show a liquid crystal display device A2 according to a second embodiment of the present invention.
- the same or similar elements as those in the first embodiment are denoted by the same reference numerals.
- the liquid crystal display device A 2 has a full dot ′ pseudo full color display function and is not divided into a plurality of unit display sections 6 as shown in FIGS.
- the liquid crystal display device A2 includes a plurality of first electrodes (scanning electrodes) 2R, 2G, 2B and a plurality of second electrodes (counter electrodes) 3.
- filters 4R, 4G, and 4B are overlaid on the first electrodes 2R, 2G, and 2B, respectively.
- the filters 4R, 4G, and 4B transmit red, green, and blue light, respectively.
- the first electrodes 2R, 2G, 2B and the second electrode 3 are all arranged at an equal pitch, and form a plurality of pixels 5 arranged in a matrix. Also, as shown in FIG. 6, the first electrodes 2R, 2G, 2B in the upper half in the figure are connected to the driver 7 via the first wirings 21R, 21G, 21B formed on the right side in the figure. The first electrodes 2R, 2G, 2B in the middle and lower half are connected to the driver 7 via first wirings 21R, 21G, 21B formed on the left side in the figure.
- image data to be displayed on the display surface 11 is input to the driver 7.
- the driver 7 selectively supplies a control signal (voltage) to the plurality of second electrodes 3 while supplying a scanning signal to each of the first electrodes 2R, 2G, 2B at a constant period according to the image data.
- each pixel 5 can display a total of eight colors, including seven colors of red, green, blue, yellow, light blue, purple, and white as the colored state and black as the non-colored state.
- the total number of electrodes 2R, 2G, 2B, 3 and the total number of wirings 21R, 21G, 21B, 31 are reduced, the structure and function of the driver 7 are simplified, and the liquid The crystal display device A2 can be downsized.
- pseudo full color display In this case, it is only necessary to select the ONZOFF state for each RGB color and display eight colors. Therefore, a monochrome image display driver can be used as the driver 7.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007550193A JPWO2007069636A1 (ja) | 2005-12-14 | 2006-12-13 | 液晶表示装置 |
| EP06834581A EP1962269A1 (en) | 2005-12-14 | 2006-12-13 | Liquid crystal display device |
| US12/086,455 US20100214520A1 (en) | 2005-12-14 | 2006-12-13 | Liquid Crystal Display Device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005360169 | 2005-12-14 | ||
| JP2005-360169 | 2005-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007069636A1 true WO2007069636A1 (ja) | 2007-06-21 |
Family
ID=38162942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/324826 Ceased WO2007069636A1 (ja) | 2005-12-14 | 2006-12-13 | 液晶表示装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100214520A1 (ja) |
| EP (1) | EP1962269A1 (ja) |
| JP (1) | JPWO2007069636A1 (ja) |
| KR (1) | KR20080070061A (ja) |
| CN (1) | CN101331534A (ja) |
| WO (1) | WO2007069636A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101920761B1 (ko) | 2011-12-26 | 2018-11-22 | 엘지디스플레이 주식회사 | 평판 디스플레이장치 어레이 기판 및 이를 포함하는 평판 디스플레이장치 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568677B (zh) | 2019-09-12 | 2022-04-22 | 京东方科技集团股份有限公司 | 一种显示面板及其制备方法、显示装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002032051A (ja) * | 2000-07-18 | 2002-01-31 | Sony Corp | 表示装置およびその駆動方法、ならびに携帯端末 |
| JP2002123228A (ja) * | 2000-10-17 | 2002-04-26 | Seiko Epson Corp | 電気光学パネル、その駆動方法および電子機器 |
| JP2002221945A (ja) * | 2001-01-26 | 2002-08-09 | Citizen Watch Co Ltd | 液晶表示装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1068923A (ja) * | 1996-06-17 | 1998-03-10 | Canon Inc | 液晶素子及びそれを用いた液晶装置 |
-
2006
- 2006-12-13 CN CNA2006800470373A patent/CN101331534A/zh active Pending
- 2006-12-13 JP JP2007550193A patent/JPWO2007069636A1/ja active Pending
- 2006-12-13 KR KR1020087014177A patent/KR20080070061A/ko not_active Ceased
- 2006-12-13 WO PCT/JP2006/324826 patent/WO2007069636A1/ja not_active Ceased
- 2006-12-13 US US12/086,455 patent/US20100214520A1/en not_active Abandoned
- 2006-12-13 EP EP06834581A patent/EP1962269A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002032051A (ja) * | 2000-07-18 | 2002-01-31 | Sony Corp | 表示装置およびその駆動方法、ならびに携帯端末 |
| JP2002123228A (ja) * | 2000-10-17 | 2002-04-26 | Seiko Epson Corp | 電気光学パネル、その駆動方法および電子機器 |
| JP2002221945A (ja) * | 2001-01-26 | 2002-08-09 | Citizen Watch Co Ltd | 液晶表示装置 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101920761B1 (ko) | 2011-12-26 | 2018-11-22 | 엘지디스플레이 주식회사 | 평판 디스플레이장치 어레이 기판 및 이를 포함하는 평판 디스플레이장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100214520A1 (en) | 2010-08-26 |
| CN101331534A (zh) | 2008-12-24 |
| JPWO2007069636A1 (ja) | 2009-05-21 |
| EP1962269A1 (en) | 2008-08-27 |
| KR20080070061A (ko) | 2008-07-29 |
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