CN1683962A - Color liquid crystal display device and its display method - Google Patents
Color liquid crystal display device and its display method Download PDFInfo
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- CN1683962A CN1683962A CNA2005100672870A CN200510067287A CN1683962A CN 1683962 A CN1683962 A CN 1683962A CN A2005100672870 A CNA2005100672870 A CN A2005100672870A CN 200510067287 A CN200510067287 A CN 200510067287A CN 1683962 A CN1683962 A CN 1683962A
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- 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
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- 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
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- 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
- G02F1/1336—Illuminating devices
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- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
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- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a color liquid crystal display element having the characteristic of field sequential driving and capable of multi-color display by one segment (dot) at a low cost even in the liquid crystal display element having a large display capacity needing high duty driving. A liquid crystal display is formed by combining the liquid crystal display element 1 of a usual segment+dot matrix type capable of monochrome display (white and black display) with a field sequential driving liquid crystal display element 2 capable of color display. The field sequential driving liquid crystal display element 2 has a plurality of display regions each corresponding to one segment or dot region of the liquid crystal display element 1 capable of monochrome display, or a region in which two or more segment or dot regions thereof are collected.
Description
Technical field
The present invention relates to a kind of color liquid crystal display arrangement and display packing thereof that makes the use preface drive liquid crystal display cells.
Background technology
Patent documentation 1: the spy opens the 2002-221700 communique
As the method that makes the liquid crystal display cells colorize, the method for using color filter is arranged, but have problem such as cost height under this situation.In addition, also exist a viewing area can only show problem with the corresponding color of color filter color of this part in the method.
In order to address these problems, the liquid crystal display cells of field-sequential mode has been proposed.This method has a plurality of light sources that send the color of light that has nothing in common with each other, make the luminous action of these light source orders repeatedly, timing according to this light source luminescent, carry out connection, the disconnection of liquid crystal display cells, utilize human eye to the integration capabilities of time thus, make in a display element, to show various demonstration looks.
Use the sequential chart of Fig. 1, illustrate in greater detail above-mentioned preface and drive display packing under the situation of the light source that uses red (R), green (G), blue (B) three kinds of colors in the liquid crystal display cells.As shown in the drawing, the light source of these three kinds of colors carries out repeatedly according to the luminous action of RGB order.During existing all light sources all non-luminous between various glow colors, this is because in the connection of carrying out during this period liquid crystal display cells, disconnection action.
Shown in the (a) and (b) of Fig. 1, (c), if only making liquid crystal display cells during corresponding with any color in three kinds of colour light sources is transmissive state, can show any color of red, green, blue, shown in (d), (e) of this figure, (f), if making liquid crystal display cells during corresponding with any two colors in three kinds of colour light sources is transmissive state, because these two kinds of colors have been carried out additive mixture, can show any one color among viridescent (C), dark red (M), yellow (Y).And, shown in this figure (g), if making liquid crystal display cells during corresponding with whole colors of three kinds of colour light sources is transmissive state, because these three kinds of colors have been carried out additive mixture, so can display white (W), in addition shown in this figure (h), if three kinds of colour light sources arbitrarily during all liquid crystal display cells is remained the shading state, because the light of any light source of not transmission is so can show black (BK).
Like this, in the preface method on the scene, do not use color filter can carry out colour and show.And,, can show multiple color in a zone by adjusting the timing of transmissive state.
Using under the situation of nematic crystal as liquid crystal display cells, its response speed is several milliseconds, thus in the sequential chart of Fig. 1 all non-luminous time of all light sources (carrying out the connection of liquid crystal, the time of disconnection) be several milliseconds, representational value is 2～5 milliseconds.For a plurality of light sources are carried out additive mixture, the luminous successively one by one time (1 frame) of a plurality of light sources must be enough short, is preferably less than particularly to equal 20 milliseconds, if explain with frame rate then be more than or equal to 50Hz.At frame rate is under the situation of 50Hz, and as shown in Figure 1, under the situation of the light source that uses three kinds of colors, the time (subframe) of distributing to every kind of color is about 6.67 milliseconds.Therefore, the time of each light source luminescent is 4.67～1.67 milliseconds.
Under the capacity of display of liquid crystal display cells becomes big situation, in making that the corresponding terminal of a show pen section shows, so-called static drive, will cause number of terminals to increase and unrolling from the show pen section to terminal complicated.Therefore, use connects two or more show pen sections, divides the so-called multichannel driving that shows according to the time a terminal.In a segment type liquid crystal display cells, generally use the TN pattern, with the increase of the hop count amount of beginning to write, the multichannel of the dutycycle of use about from 1/2 to 1/16 drives.In the dot matrix type liquid crystal display cells, because compare the quantity of show pen section (point) with a segment type many, so use the STN pattern, the multichannel that can use the dutycycle about from 1/32 to 1/480 drives.
As the liquid crystal indicator that has used above-mentioned field preface driving liquid crystal display cells, the liquid crystal indicator (for example, with reference to patent documentation 1) of employing optical grating element (raster unit) has been proposed.But known: usually, even use the liquid crystal display cells of making under the same conditions, also the response speed when carrying out static drive is slow to carry out the response speed of multichannel when driving.Particularly when the time division numbers became big, this trend became more obvious, and in the STN-LCD that 1/480 dutycycle drives, response speed will be hundreds of milliseconds.
Therefore, using the slow liquid crystal display cells of response speed to carry out a preface driving is infeasible in theory, this slow liquid crystal display cells is being carried out under the situation of preface driving with above-mentioned 50Hz frame rate pressure, do not show fully, even shown that perhaps color is also very light, even be difficult to see clearly.Though if reduce frame rate according to the response speed of liquid crystal display cells, which kind of can be confirmed to be show and maybe can heighten the color, change color in this case itself is just looked to be thought and still is difficult to flicker see clearly.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose is, a kind of low cost is provided and can carries out the color liquid crystal display device and the display packing thereof of multicolor displaying at a pen section (point), it is characterized in that, drive even need the liquid crystal display cells of the big capacity of display of high duty ratio driving also can carry out a preface.
Color liquid crystal display arrangement of the present invention constitutes, and has made up to drive liquid crystal display cells with the field preface that can coloredly show by the monochromatic liquid crystal display cells that shows.
And, described preface drives liquid crystal display cells and has a plurality of viewing areas, the zone of these a plurality of viewing areas and pen section that can the monochromatic liquid crystal display cells that shows or point or concentrated the regional corresponding of two or more sections or point, and, can the monochromatic liquid crystal display cells that shows be a segment type liquid crystal display cells or the full dot matrix type liquid crystal display cells of multichannel driving or the liquid crystal display cells that constitutes by these liquid crystal display cells combinations that multichannel drives.
The display packing of color liquid crystal display arrangement of the present invention, can the monochromatic liquid crystal display cells that shows and a preface drive a liquid crystal display cells and make up and carry out colour demonstration, this preface drives liquid crystal display cells and has a plurality of viewing areas, these a plurality of viewing areas and pen section or some zone that can the monochromatic liquid crystal display cells that shows, perhaps concentrated the regional corresponding of two or more sections or point, and, can the monochromatic liquid crystal display cells that shows and a preface drive a liquid crystal display cells and make up and carry out colour and show, described can the monochromatic liquid crystal display cells that shows a segment type liquid crystal display cells that be the multichannel driving, or the full dot matrix type liquid crystal display cells of multichannel driving, or made up the liquid crystal display cells of these liquid crystal display cells.
Have following effect according to the present invention: cost is low, can carry out multiple color at a pen section (point) and show, it is characterized by, and drives even need the liquid crystal display cells of the big capacity of display of high duty ratio driving also can carry out a preface.
Description of drawings
Fig. 1 is the driving sequential chart of field-sequential mode.
Fig. 2 is that expression has been applied to the present invention to mix that the pen section shows and the exploded perspective view of the structure of the liquid crystal indicator of the liquid crystal display cells of dot matrix display type.
Fig. 3 is the exploded perspective view of structure that expression is applied to the present invention the liquid crystal indicator of full dot matrix type liquid crystal display cells.
Fig. 4 is the figure of the demonstration example of expression embodiments of the invention 1.
Fig. 5 is the figure of the demonstration example of expression embodiments of the invention 2.
Embodiment
Specifically, color liquid crystal display arrangement of the present invention has made up the liquid crystal display cells and the preface that drive with high duty ratio and has driven liquid crystal display cells, this preface drives liquid crystal display cells can be divided into a plurality of zones, and each zone is shown independently and with multiple color.
According to the manner, carry out multicolor displaying individually though can not make all sections (point), for example when utilizing the liquid crystal display cells character display of full dot matrix, with a plurality of as being that a piece (for example 16 * 16 points) shows a character, under this situation, can change Show Color according to each piece, and not need the each point in the controll block one by one.And, show in the pen section, for example in the continuous demonstration of numeral 8 (7 sections), identical in the time of with point, can change Show Color according to 7 pen sections of each piece.
In other words, the present invention is not suitable for making all sections (point) to carry out the purposes that multiple color shows independently, for example utilizes the purposes of full dot matrix type liquid crystal display cells display pattern, makes each section in the segment type liquid crystal display cells have the purposes of independent meaning.Use the liquid crystal display cells of trickle color filter to be suitable for these purposes, realized by carrying out high-quality demonstration with the combination of driven with active matrix.But the cost of this liquid crystal display cells is very high.
That is,, realize the colored new method that shows with low-down cost though the present invention has applied restriction to a certain degree a kind of colour is shown.Use Fig. 2 and Fig. 3 further to specify the present invention.
Fig. 2 is that expression has been applied to the present invention to mix that the pen section shows and the exploded perspective view of the structure of the liquid crystal indicator of the liquid crystal display cells of dot matrix demonstration.This liquid crystal indicator is to be shown the liquid crystal display cells 1 of (white and black displays) and can be divided into a plurality of by the monochrome that can carry out common segment type+dot matrix type to carry out the double-decker that the colored field preface that shows drives liquid crystal display cells 2 formations.So-calledly herein be divided into a plurality of and be meant or the corresponding zone of two or more sections that will show independent color respectively that is divided into conventional pen segment type display element.
A common segment type+type liquid crystal display cells 1 also can be Chang Bai (Normally White) pattern because response speed without limits, so can use various patterns, as shown in Figure 2, can be normal black (Normally Black) pattern.But, owing to reasons such as tie point that can't see color shown in the preface liquid crystal display on the scene, therefore preferred normal black pattern.Certainly, also can use the pattern of beyond display part, implementing black mask.Under this situation, display mode can be that often black pattern also can be normal white mode.And driving method also without limits.
To this, owing to driving a liquid crystal display cells 2, a preface needs high-speed response, so liquid crystal mode is limited, drive and also adopt static drive or maximum low duty ratio driving to 1/3 dutycycle.Display mode can be that often black pattern also can be normal white mode, can be a kind of according to design alternative.3 expressions have the RGB backlight unit of the area source of the versicolor electroluminescent lamp of red, green, blue.
Fig. 3 is the exploded perspective view of structure that expression is applied to the present invention the liquid crystal indicator of full dot matrix type liquid crystal display cells 11.Principle and Fig. 2 are identical, only are to use full dot matrix type liquid crystal display cells 11 to replace the conventional pen segment type+type liquid crystal display cells 1 of Fig. 2.That is be to drive the double-decker that liquid crystal display cells 12 constitutes, by common full dot matrix type liquid crystal display cells 11 and the field preface that is divided into a plurality of.So-calledly herein be divided into a plurality of and be meant the corresponding zone of two or more points that will show independent color respectively that is divided into common dot matrix type display element.
Because common 11 pairs of response speeds of full dot matrix type liquid crystal display cells are without limits, so can use various patterns, as shown in Figure 3, can be often black pattern, also can be normal white mode.But, owing to reasons such as tie point that can't see color shown in the preface liquid crystal display on the scene, therefore preferred normal black pattern.And driving method also without limits.
To this, owing to driving a liquid crystal display cells 12, a preface needs high-speed response, so the pattern of liquid crystal is limited, drive and also adopt static drive or maximum low duty ratio driving to 1/3 dutycycle.Display mode can be that often black pattern also can be normal white mode, can be a kind of according to design alternative.13 expressions have the RGB backlight unit of the area source of red, green, blue shades of colour electroluminescent lamp.
Below, utilize embodiment to illustrate in greater detail the present invention.
(embodiment 1)
To the present invention has been applied to mixing shown in Figure 2 pen section show and the embodiment of the liquid crystal display cells of dot matrix demonstration describes.
As a common segment type+dot matrix type liquid crystal display cells, use 90 degree of normal black pattern to reverse TN-LCD.Basic structure is identical with common TN-LCD, but for the blackness of emphasizing substrate reduces transmissivity, the amassing of the birefringence of liquid crystal and element thickness, be that length of delay is set at 2.5 microns.The birefringence of liquid crystal is 0.2, and element thickness is 12.5 microns.Multichannel type of drive with 1/8 dutycycle drives this liquid crystal display cells.So the response speed of this moment because element thickness is thicker very slow, rises, add up to about 250ms fall time.
On the other hand, show, use 90 degree of normal white mode to reverse TN-LCD as field sequential liquid crystal.Its basic structure also TN-LCD with common is identical, but in order to make response speed preferential, so set element thickness thinly as far as possible.Specifically, element thickness is 2.0 microns, and it has been made up birefringence is 0.25 liquid crystal.Therefore, the length of delay of this liquid crystal cells is 0.5 micron.
The driving of liquid crystal cells adopts static drive to carry out, and is identical with common field sequential liquid crystal display element, drives in to the luminous adjustment regularly as the RGB three-color LED of carrying on the back illuminator.And when measuring response speed with the liquid crystal cells monomer, rising, descending is about 2ms altogether.
These two liquid crystal display cells and backlight unit are superimposed, make the purpose display element and also observe, can obtain and expect the identical demonstration that can change color in each section.Fig. 4 represents the synoptic diagram that shows.In these figure (a) and (b), each character is different with the color of numeral.
In addition, the use Polarizer is pasted on two sides at two liquid crystal display cells respectively, under the identical situation in the polarizing axis orientation of the Polarizer of the opposite side of these two liquid crystal display cells, Polarizer even without the opposite side of either party's liquid crystal display cells also can carry out identical demonstration.In fact the mode represented of present embodiment, owing to divide into the offset tabula rasa in this condition, thus can be sure of to carry out such demonstration, and no problem fully.
(embodiment 2)
The embodiment that the present invention is applied to full dot matrix type liquid crystal display cells shown in Figure 3 is described.
As common full dot matrix type liquid crystal display cells, use film offset-type 240 degree of normal black pattern to reverse STN-LCD.Basic structure and common STN-LCD are identical.The amassing of the birefringence of liquid crystal and element thickness, be that length of delay is set at 0.9 micron.Utilize the multichannel type of drive of 1/240 dutycycle to drive this liquid crystal display cells.The response speed of this moment is for adding up to rising, fall time about 200ms.
On the other hand, show the liquid crystal cells of use and embodiment 1 identical unit condition as field sequential liquid crystal.The difference of the pattern form when just being divided into piece with the difference of embodiment 1.Herein, having made horizontal demonstration at 480 * vertical 240 is that a piece is divided with 60 * 60, promptly is divided into horizontal 8 * 4 display elements that add up to 32.This time the shape of all pieces is identical, but certainly according to design its shape is made Any shape.
These two liquid crystal display cells and backlight unit are superimposed, made the target display element and observed, can obtain and expect the identical demonstration that can freely change color in each zone.Fig. 5 represents the synoptic diagram that shows.In these figure (a) and (b), the color difference of each character.
In addition, the use Polarizer is pasted on two sides at two liquid crystal display cells respectively, under the identical situation in the polarizing axis orientation of the Polarizer of the opposite side of these two liquid crystal display cells, Polarizer even without the opposite side of the liquid crystal display cells of any one party also can carry out identical demonstration.In fact in the present embodiment owing to used the STN-LCD of market sale, so the axis of homology orientation of Polarizer departs from the Polarizer axis of homology orientation of a TN-LCD of preface side, can not confirm its orientation unanimity, but under rotation STN-LCD makes state with the polarizing axis alignment of orientation, whether after taking off the Polarizer of opposite side, it is no problem fully just can to confirm.
Illustrated as above embodiment, by the liquid crystal display cells that makes up normal white and black displays, field sequential liquid crystal display element and the backlight system that is divided into each suitable zone, can be easily and obtain colored the demonstration at low cost, wherein, backlight system can make a plurality of light sources that are used in combination with this field sequential liquid crystal display element glimmer in proper order.
In addition, in an embodiment segment type+dot matrix type and full dot matrix type are illustrated, but the present invention certainly is applicable to a just segment type device shown.
And, all use the liquid crystal display cells of normal black pattern in an embodiment as the liquid crystal display cells of normal white and black displays, all use the liquid crystal display cells of normal white mode as the field sequential liquid crystal display element, but the invention is not restricted to these combinations, no matter utilize which kind of combination all can realize the present invention.
And, liquid crystal display cells as white and black displays shows TN-LCD and STN-LCD in an embodiment, show TN-LCD as the field sequential liquid crystal display element, but, similarly, the invention is not restricted to these combinations, liquid crystal display cells as white and black displays, can also use the LCD of all patterns such as vertical orientating type LCD and guest-host type LCD, strong induction type LCD in addition, as the field sequential liquid crystal display element, consider that from the high-speed response aspect STN-LCD is not suitable for, but certainly use the LCD of various patterns such as strong induction type LCD.
Claims (6)
1. a color liquid crystal display arrangement is characterized in that, combination has can be carried out the monochromatic liquid crystal display cells that shows and can carry out the colored field preface that shows driving liquid crystal display cells.
2. color liquid crystal display arrangement according to claim 1, it is characterized in that, described preface drives liquid crystal display cells and has a plurality of viewing areas, pen section of described a plurality of viewing areas and liquid crystal display cells that can monochromatic demonstration or the zone of point or concentrated the regional corresponding of two or more sections or point.
3. color liquid crystal display arrangement according to claim 1, it is characterized in that, described can the monochromatic liquid crystal display cells that shows be the segment type liquid crystal display cells that multichannel drives, or the full dot matrix type liquid crystal display cells of multichannel driving, or the liquid crystal display cells that constitutes by these liquid crystal display cells combinations.
4. according to any described color liquid crystal display arrangement in the claim 1～3, it is characterized in that, the described described field preface that can coloredly show that is positioned at that can the monochromatic liquid crystal display cells that shows drives the Polarizer that the Polarizer of liquid crystal display cells side and the described field preface that can coloredly show drive the described liquid crystal display cells side that can the monochrome demonstration of being positioned at of liquid crystal display cells, by shared single Polarizer.
5. the display packing of a color liquid crystal display arrangement, it is characterized in that, can the monochromatic liquid crystal display cells that shows and a preface drive a liquid crystal display cells and make up and carry out colour demonstration, this preface drives liquid crystal display cells and has a plurality of viewing areas, pen section of described a plurality of viewing areas and liquid crystal display cells that can monochromatic demonstration or the zone of point or concentrated the regional corresponding of two or more sections or point.
6. the display packing of a color liquid crystal display arrangement, it is characterized in that, can the monochromatic liquid crystal display cells that shows and a preface drive a liquid crystal display cells and make up and carry out colour and show that described can the monochromatic liquid crystal display cells that shows be a segment type liquid crystal display cells or the full dot matrix type liquid crystal display cells of multichannel driving or the liquid crystal display cells that is combined by these liquid crystal display cells that multichannel drives.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004118870 | 2004-04-14 | ||
| JP2004118870A JP4471716B2 (en) | 2004-04-14 | 2004-04-14 | Color liquid crystal display device and display method thereof |
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| CN1683962A true CN1683962A (en) | 2005-10-19 |
| CN100417978C CN100417978C (en) | 2008-09-10 |
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| CNB2005100672870A Expired - Fee Related CN100417978C (en) | 2004-04-14 | 2005-04-14 | Color liquid crystal display device and its display method |
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| Country | Link |
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| JP (1) | JP4471716B2 (en) |
| KR (1) | KR101154383B1 (en) |
| CN (1) | CN100417978C (en) |
| TW (1) | TWI427581B (en) |
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| US6108058A (en) * | 1997-04-30 | 2000-08-22 | Tohoku Techno-Brains Corporation | Field sequential Pi cell LCD with compensator |
| JP3744722B2 (en) * | 1999-05-06 | 2006-02-15 | スタンレー電気株式会社 | Two-layer STN type liquid crystal display device |
| JP2001147414A (en) | 1999-11-22 | 2001-05-29 | Stanley Electric Co Ltd | Tn type liquid crystal display device |
| JP3876708B2 (en) * | 2001-12-21 | 2007-02-07 | カシオ計算機株式会社 | Liquid crystal drive device |
| US7057668B2 (en) * | 2002-04-19 | 2006-06-06 | Kopin Corporation | Color/mono switched display |
| JP4419376B2 (en) | 2002-04-30 | 2010-02-24 | カシオ計算機株式会社 | Liquid crystal display |
| JP3871615B2 (en) * | 2002-06-13 | 2007-01-24 | 富士通株式会社 | Display device |
| KR100503430B1 (en) * | 2002-08-23 | 2005-07-26 | 엘지.필립스 엘시디 주식회사 | field sequential liquid crystal device |
| JP2004117652A (en) * | 2002-09-25 | 2004-04-15 | Rohm Co Ltd | Composite display device |
-
2004
- 2004-04-14 JP JP2004118870A patent/JP4471716B2/en not_active Expired - Fee Related
-
2005
- 2005-03-25 TW TW094109297A patent/TWI427581B/en not_active IP Right Cessation
- 2005-04-04 KR KR1020050028030A patent/KR101154383B1/en active IP Right Grant
- 2005-04-14 CN CNB2005100672870A patent/CN100417978C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062375A1 (en) * | 2007-10-19 | 2009-05-22 | Guoping Chen | Field-sequentially driven color liquid crystal display device and its driving method |
| CN102346320A (en) * | 2011-09-10 | 2012-02-08 | 鞍山亚世光电显示有限公司 | COG (liquid crystal display) module |
| CN103207477A (en) * | 2013-04-19 | 2013-07-17 | 精电(河源)显示技术有限公司 | Liquid crystal display device and control method thereof |
| CN103207477B (en) * | 2013-04-19 | 2014-08-20 | 精电(河源)显示技术有限公司 | Liquid crystal display device and control method thereof |
| CN114067761A (en) * | 2020-07-29 | 2022-02-18 | 精工爱普生株式会社 | Integrated circuit device, liquid crystal display device, electronic apparatus, and moving object |
| CN117133249A (en) * | 2023-08-31 | 2023-11-28 | 惠科股份有限公司 | Driving method of display device and display device |
| CN117133249B (en) * | 2023-08-31 | 2024-05-28 | 惠科股份有限公司 | Driving method of display device and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100417978C (en) | 2008-09-10 |
| TW200601228A (en) | 2006-01-01 |
| TWI427581B (en) | 2014-02-21 |
| KR20060045487A (en) | 2006-05-17 |
| KR101154383B1 (en) | 2012-06-15 |
| JP4471716B2 (en) | 2010-06-02 |
| JP2005301026A (en) | 2005-10-27 |
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Effective date of registration: 20060602 Address after: Tokyo, Japan Applicant after: Stanley Electric Co.,Ltd. Co-applicant after: Sharp Corp. Address before: Tokyo, Japan Applicant before: Stanley Electric Co.,Ltd. |
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