CN101388192A - Control circuit of color sequential LCD equipment and control method - Google Patents
Control circuit of color sequential LCD equipment and control method Download PDFInfo
- Publication number
- CN101388192A CN101388192A CNA2008101469177A CN200810146917A CN101388192A CN 101388192 A CN101388192 A CN 101388192A CN A2008101469177 A CNA2008101469177 A CN A2008101469177A CN 200810146917 A CN200810146917 A CN 200810146917A CN 101388192 A CN101388192 A CN 101388192A
- Authority
- CN
- China
- Prior art keywords
- backlight
- color
- liquid crystal
- lcd
- crystal display
- 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.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention relates to a control circuit of a color sequence type liquid crystal display device and a control method, the control circuit comprises a light source driving circuit, a data driving circuit and a scan driving circuit, wherein the light source driving circuit produces a driving signal to control the color sequence type liquid crystal display device to produce backlight source with different colors, the data driving circuit produces a data signal, the data signal comprises a plurality of data pulse wave, the scan driving circuit produces a scan signal, the scan signal comprises a plurality of scan pulse wave which respectively correspond to the data pulse wave, the control method control the color sequence type liquid crystal display device to display an image through the scan pulse wave, the data pulse wave and the backlight source, and the quasi level of the data pulse wave and the quasi level of the scan pulse wave can change according to different images. Therefore, the consumption of power supply of the control circuit can be reduced, and the color mixing of the color sequence type liquid crystal display device is reduced.
Description
Technical field
The invention relates to a kind of control circuit and control method, it refers to a kind of control circuit and control method of color-sequence liquid crystal display (LCD) device especially.
Background technology
Scientific and technological now flourish, the information product kind is weeded out the old and bring forth the new, and has satisfied popular different demand.Early stage display is cathode-ray tube (CRT) (Cathode Ray Tube mostly, CRT) display, because it is bulky big with power consumption, and the radiant rays that is produced is for the user of long-time use display, the doubt of harm health is arranged, therefore, display on the market gradually will be by LCD (Liquid CrystalDisplay, LCD) the old CRT monitor of replacement now.That LCD has is compact, low radiation and advantages such as power consumption is low, also so become the existing market main flow.
From the above, in order to make LCD reach several big characteristics of maximization, colorize and slim, light weight, low electric power loss, in the design of LCD, just must develop high performance light source now.Therefore LCD is non-luminous display, and the bad place of light Like attitude outside just must use the mode Come of illumination luminous.For example, the LCD of wrist-watch is for using simple miniature bulb as illumination; Employed LCD such as vapour Trucks ammeter or OA terminating machine also are luminous by the lighting source at rear, just can obtain distinct demonstration.These use the mode of slim white light source to be called (Back Light) backlight overleaf.
Moreover illuminating source backlight is made of light source and optical diffusion film.Because the area source that is necessary for backlight, therefore must utilize optical diffusion film to be changed to area source line sources such as pointolite such as white heat bulb or screen lamp.The general employed light source of back light of tradition roughly is divided into white heat bulb, light emitting diode, organic dispersed EL (Electro Luminescent Lamp), fluorescent light and plane fluorescent lamp, its illumination mode then is divided into straight-down negative and edge-lit formula, so Yi Ban Said Come, liquid crystal panel is made up of a plurality of pixels of arranging with matrix form.By control the brightness of pixel by the image data of each pixel of feed-in respectively, make whole liquid crystal display panel display frame.Because pixel can only show by bright that to dark GTG therefore need are by coming Show Color according to this by other mode.
A kind of traditional LCD is utilized colored filter and is shown the three primary colors composition of a pixel simultaneously, thereby demonstrates color.A pixel of the LCD of this kind tool colored filter corresponds to red, green and blue color filter respectively by three combination of pixels.Human eye receiving filtration mating plate and red, the green and blue light that demonstrates, can with mixing and experience the color of this pixel.
Another kind of traditional look preface formula (Color Sequential) LCD shows three former colour contents of a pixel successively and presents color.Each pixel of this kind color sequential liquid crystal display is by by three light emitting sources, send red, green respectively and blue light with as backlight.In an image time, this pixel basis shows three data, and red, the green and blue light of corresponding respectively unlatching.Utilize the persistence of vision of human eye, the people can pick out the color of this pixel.Color sequential liquid crystal display and the LCD with colored filter in comparison, color sequential liquid crystal display need not use colored filter, gets final product display color, therefore has cost-effective advantage.In addition,, therefore utilize look preface formula to come the color of show image, can improve three times resolution because the display packing of look preface formula only need can determine a color of pixel by a pixel.
Yet still there is some shortcoming in color sequential liquid crystal display now.To use Twisted Nematic LCD (the Twisted Nematic LCD of look preface formula, TN LCD) with super-twist nematic liquid crystal display (Super Twisted Nematic LCD, STN LCD), its control circuit produces an one scan signal and a data signals, and utilize the voltage difference that scans between signal and the data signals, and the control liquid crystal anglec of rotation, with the printing opacity degree in decision colored backlight source, promptly determine the color of image output, above-mentioned voltage difference is called pixel voltages.But, scanning signal now is the voltage signal of a fixing accurate position, and control circuit is only by the accurate position by the control data signal, to adjust the voltage difference between scanning signal and the data signals, and the decision pixel voltages, and then the color of decision image, so, when producing bigger pixel voltages, when rotating than wide-angle with the control liquid crystal, because accurate of the scanning signal is fixing accurate position, so the standard position of data signals just must be improved a lot, so promptly can increases the electrical source consumption of control circuit.In addition, color sequential liquid crystal display has the problem of colour mixture now, and makes the color of the shown image that goes out of display can't reach the color of expection, and reduces display effect.
Therefore, the present invention is directed to the problems referred to above and propose a kind of control circuit and control method thereof of novel color-sequence liquid crystal display (LCD) device, it passes through by the standard position of the accurate position of adjusting the scanning signal with data signals, and the pressure reduction between gated sweep signal and data signals, to save the power supply that control circuit was consumed, and can reduce the problem of colour mixture, solving the above problems.
Summary of the invention
One of purpose of the present invention is to provide a kind of control circuit and control method thereof of color-sequence liquid crystal display (LCD) device, it passes through by the standard position of the accurate position of adjusting the scanning signal with data signals, with the color of control color-sequence liquid crystal display (LCD) device output, save power supply and the purpose that reduces colour mixture and reach.
Two of purpose of the present invention is to provide a kind of control circuit and control method thereof of color-sequence liquid crystal display (LCD) device, it passes through by increasing the white backlight source, and adjust the color that color-sequence liquid crystal display (LCD) device is exported, to improve the brightness and the color change of color-sequence liquid crystal display (LCD) device.
For realizing that the object of the invention to solve the technical problems is achieved through the following technical solutions.
The control circuit of a kind of color-sequence liquid crystal display (LCD) device provided by the invention, it comprises:
One light source driving circuit produces one and drives signal and be sent to this color-sequence liquid crystal display (LCD) device, to control the backlight that this color-sequence liquid crystal display (LCD) device produces different colours;
One data drive circuit produces a data signals and is sent to this color-sequence liquid crystal display (LCD) device, and this data signals comprises the complex data pulse wave; And
Scan driving circuit produces the one scan signal and is sent to this color-sequence liquid crystal display (LCD) device, and this scanning signal comprises plural number scanning pulse wave, and respectively corresponding those data pulse waves;
Wherein, this color-sequence liquid crystal display (LCD) device scans pulse wave, those data pulse waves and this backlight according to those and shows an image, and the accurate position of those data pulse waves changes according to different images with the accurate position of those scanning pulse waves.
Among the present invention, wherein the accurate position of those scanning pulse waves changes according to the color of this image.
Among the present invention, more comprise:
One sequential control circuit produces a sequential signal and is sent to this light source driving circuit, this data drive circuit and this scan drive circuit, to produce this driving signal, this data signals and this scanning signal according to this sequential signal respectively.
Among the present invention, wherein this sequential control circuit, this data drive circuit and this scan drive circuit are integrated into a control chip.
Among the present invention, wherein this control chip more is integrated with this light source driving circuit.
Among the present invention, wherein this driving signal is controlled the backlight that this color-sequence liquid crystal display (LCD) device produces and is comprised a red backlight, a green colored backlights source and a blue backlight.
Among the present invention, wherein this backlight more comprises a white backlight source.
Among the present invention, wherein this white backlight source result from this redness backlight, this green colored backlights source or should the blueness backlight after.
Among the present invention, wherein this color-sequence liquid crystal display (LCD) device comprises:
One backlight module drives signal according to this, produces the backlight of different colours; And
One display module according to this data signals, this scanning signal and this backlight, shows this image.
Among the present invention, it is applied to a Twisted Nematic LCD or a super-twist nematic liquid crystal display.
The present invention also discloses a kind of control method of color-sequence liquid crystal display (LCD) device simultaneously, and its step comprises:
Produce one and drive signal, and be sent to this color-sequence liquid crystal display (LCD) device, to control the backlight that this color-sequence liquid crystal display (LCD) device produces different colours;
Produce a data signals, and be sent to this color-sequence liquid crystal display (LCD) device, this data signals comprises the complex data pulse wave; And
Produce the one scan signal, and be sent to this color-sequence liquid crystal display (LCD) device, this scanning signal comprises plural number scanning pulse wave, and respectively corresponding those data pulse waves;
Wherein, this color-sequence liquid crystal display (LCD) device scans pulse wave, those data pulse waves and this backlight according to those and shows an image, and the accurate position of those data pulse waves changes according to different images with the accurate position of those scanning pulse waves.
Among the present invention, wherein those accurate positions of scanning pulse wave change according to the color of this image.
Among the present invention, more comprise:
Produce a sequential signal, to produce this driving signal, this data signals and this scanning signal according to this sequential signal.
Among the present invention, wherein this driving signal is controlled the backlight that this color-sequence liquid crystal display (LCD) device produces and is comprised a red backlight, a green colored backlights source and a blue backlight.
Among the present invention, wherein this backlight more comprises a white backlight source.
Among the present invention, wherein this white backlight source results from after this redness backlight, this green colored backlights source and this blueness backlight.
Among the present invention, wherein this driving signal is sent to a backlight module of this color-sequence liquid crystal display (LCD) device, to produce the backlight of different colours, this data signals and this scanning signal are sent to a display module of this color-sequence liquid crystal display (LCD) device, and this display module shows this image according to this data signals, this scanning signal and this backlight.
Among the present invention, it is applied to a Twisted Nematic LCD or a super-twist nematic liquid crystal display.
The invention has the beneficial effects as follows, the control circuit of color-sequence liquid crystal display (LCD) device of the present invention and control method are by controlling the display module show image by the plural number scanning pulse wave of scanning signal and the complex data pulse wave of data signals, and the accurate position of those data pulse waves can change according to different images with the accurate position of those scanning pulse waves, so, can reduce the power supply that control circuit consumes, with the saving power supply, and can reduce of the influence of the colour mixture of color-sequence liquid crystal display (LCD) device to show image.
Description of drawings
Fig. 1 is the calcspar of one of preferred embodiment of the present invention;
Fig. 2 A is the pixel synoptic diagram of one of preferred embodiment of the present invention;
Fig. 2 B is the sequential chart of one of preferred embodiment of the present invention;
Fig. 3 A is the pixel synoptic diagram of another preferred embodiment of the present invention;
Fig. 3 B is the sequential chart of another preferred embodiment of the present invention;
Fig. 4 is the sequential chart of another preferred embodiment of the present invention
Fig. 5 A is the pixel synoptic diagram of another preferred embodiment of the present invention;
Fig. 5 B is the sequential chart of another preferred embodiment of the present invention;
Fig. 6 A is the pixel synoptic diagram of another preferred embodiment of the present invention; And
Fig. 6 B is the sequential chart of another preferred embodiment of the present invention.
The figure number explanation:
10 light source driving circuits, 12 data drive circuits
14 scan drive circuits, 16 sequential control circuits
20 display panels, 22 backlight modules
24 display modules, 30 first pixels
32 second pixels, 40 scanning pulse waves
50 data pulse wave COM scan signal
The COM1 first scanning signal COM2 second scanning signal
COM3 the 3rd scanning signal LED drives signal
LED_R drives signal LED_G and drives signal
LED_B drives signal SEG data signals
The SEG1 first data signals SEG2 second data signals
SEG3 the 3rd data signals
Embodiment
Further understand and understanding for the auditor is had architectural feature of the present invention and the effect reached, in order to preferred embodiment and cooperate detailed explanation, be described as follows:
See also Fig. 1, be the calcspar of one of preferred embodiment of the present invention.Control circuit of the present invention can be applicable to a Twisted Nematic LCD (Twisted NematicLCD, TN LCD) or a super-twist nematic liquid crystal display (Super TwistedNematic LCD, STN LCD), be not applied to Twisted Nematic LCD and super-twist nematic liquid crystal display but do not limit to, also can apply to the LCD of other types.As shown in the figure, control circuit of the present invention comprises a light source driving circuit 10, a data drive circuit 12, scan driving circuit 14, and color-sequence liquid crystal display (LCD) device 20 includes a display panel 20.Display panel 20 more comprises a backlight module 22 and a display module 24.Light source driving circuit 10 drives signal in order to produce one, and transmission drives the backlight module 22 of signal to display panel 20, to control the backlight that backlight module 22 produces different colours in regular turn, those backlights comprise red backlight, green colored backlights source and blue backlight.
Accept above-mentionedly, data drive circuit 12 is in order to producing a data signals, and transmits the display module 24 of data signals to display panel 20, and data signals comprises the complex data pulse wave.Scan drive circuit 14 is in order to producing the one scan signal, and transmits the display module 24 of scanning signal to display panel 20, and the scanning signal comprises plural number scanning pulse wave, and respectively corresponding those data pulse waves.
Based on above-mentioned, the display panel 20 of color-sequence liquid crystal display (LCD) device shows an image with those data pulse waves with the backlight that cooperates backlight module 22 to produce in regular turn according to those scanning pulse waves.Display module 24 is according to the voltage difference between the voltage quasi position of the voltage quasi position of scanning pulse wave and data pulse wave, promptly controls the angle of the liquid crystal rotation in the display module 24 according to pixel voltages, with decision backlight printing opacity degree, and then show image.The accurate position of those data pulse waves of the present invention can change according to the color of different images with the accurate position of those scanning pulse waves.
Consult Fig. 1 again, the control circuit of color-sequence liquid crystal display (LCD) device of the present invention more comprises a sequential control circuit 16, it produces a sequential signal according to color-sequence liquid crystal display (LCD) device image to display, and transmit the sequential signal to light source driving circuit 10, data drive circuit 12 and scan drive circuit 14, after light source driving circuit 10, data drive circuit 12 receive the sequential signal with scan drive circuit 14, drive signal, data signals and scanning signal and produce according to the sequential signal respectively, to order about display panel 20 show images.In addition, sequential control circuit 16, data drive circuit 12 can be integrated into a control chip with scan drive circuit 14, with the shared area of saving control circuit, and then save cost.Further, light source driving circuit 10 also can be integrated in the control chip.
Because scan drive circuit 14 of the present invention can be adjusted the accurate position of the scanning pulse wave of scanning signal, so the present invention can pass through by the standard position of the accurate position of adjusting the scanning pulse wave with the data pulse wave, and adjustment voltage difference between the two, promptly adjust pixel voltages, so promptly can reduce the needed power supply of control circuit.For instance, if display module 24 required pixel voltages are 5V (volt), the accurate position that scan drive circuit 14 of the present invention can be adjusted the scanning pulse wave is positive 2.5 volts, and data drive circuit 12 tunable integers are negative 2.5 volts according to the accurate position of pulse wave, so can produce 5 volts pixel voltages.So the control circuit that control circuit of the present invention is used compared to prior art can consume lower power supply, and can save consumption of electric.The accurate position of above-mentioned adjustment pulse wave is respectively positive accurate position and negative accurate position with the accurate position of data pulse wave, only is one of preferred embodiment of the present invention, is not only to be confined to so.
See also Fig. 2 A and Fig. 2 B, be the pixel synoptic diagram and the sequential chart of one of preferred embodiment of the present invention.COM in the icon promptly represents to scan signal, and SEG represents data signals, and LED_R, LED_G, LED_B represent to drive the driving signal of red backlight, green colored backlights source and blue backlight respectively.Embodiment shown in Fig. 2 A, with the row pixel in the display panel 20 is example, and these row receive with one scan signal COM as number, and receive different pieces of information signal SEG1-SEGn respectively, with according to accurate of the data pulse wave of the accurate position of the scanning pulse wave of scanning signal and data signals, and display color.
Shown in Fig. 2 B, scanning signal COM of the present invention comprises plural number scanning pulse wave 40, and data signals SEG1 and SEG2 include complex data pulse wave 50.Light source driving circuit 10 of the present invention drives backlight module 22 and produces red backlight, green colored backlights source and blue backlight in regular turn, to finish a look preface cycle.The image that data drive circuit 12 and scan drive circuit 14 show according to 20 desires of display panel again, and accurate of the scanning pulse wave 40 of the accurate position of the data pulse wave 50 of control data signal SEG1 and SEG2 and scanning signal COM, promptly control voltage difference (pixel voltages) between the two, to control the transmittance that backlight penetrates liquid crystal, to allow younger brother's one pixel 30 and second pixel 32 of display panel 20 show the color that institutes' desires show.
Below describe in detail with the embodiment of Fig. 3 A and Fig. 3 B.Fig. 3 A controls three pixels with a scanning signal COM and three data signal SEG1, SEG2 and SEG3.First pixel 1 is controlled by scanning signal COM and the first data signals SEG1, second pixel 2 and is controlled by scanning signal COM and is controlled by with the second data signals SEG2, the 3rd pixel 3 and scans signal COM and the 3rd data signals SEG3.Shown in Fig. 3 B, drive backlight module 22 at light source driving circuit 10 and produce red backlight R, green colored backlights source G and blue backlight B in regular turn, and finish look preface week after date, first pixel 1, second pixel 2, the 3rd pixel 3 can show redness, blue and green respectively.
Accept above-mentioned, with first pixel 1, when backlight module 22 produces red backlight, the accurate position of first scanning pulse wave of scanning signal COM is a high levle, and the accurate position of first data pulse wave of the first data signals SEG1 is a high levle, so voltage difference between the two is zero (COM-SEG1), this moment, liquid crystal was with not deflection, make red backlight pass through, afterwards when backlight module 22 produces green colored backlights source G and blue backlight B generation, the accurate position of the scanning pulse wave of scanning signal COM is different from the accurate position of the data pulse wave of the first data signals SEG1, so have voltage difference between the two, so liquid crystal will deflection, and stop that green colored backlights source G and blue backlight B pass through, so first pixel 1 promptly can show redness.In like manner, second pixel 2 and the 3rd pixel 3 can show blue and green respectively.
See also Fig. 4, be the sequential chart of another preferred embodiment of the present invention.As shown in the figure, present embodiment and the foregoing description difference are that the backlight of this implementation column more includes white light backlight, promptly drive backlight module 22 and produce red backlight simultaneously by light source driving circuit 10, green colored backlights source and blue backlight and colour mixture are back of the body white light source, it results from red backlight, behind green colored backlights source and the blue backlight, be that light source module 22 shows red backlight in regular turn, the white backlight source, the green colored backlights source, the white backlight source, blue backlight and back of the body white light source, so, can be by passing the transmittance of liquid crystal by adjusting the white backlight source, adjust the shown color that goes out of pixel, and can make pixel show the color of more color categories, and can improve the brightness of pixel display color, and increase the effect of show image.
See also Fig. 5 A and Fig. 5 B, be the pixel synoptic diagram and the sequential chart of another preferred embodiment of the present invention.As shown in the figure, scan drive circuit 14 of the present invention can produce plural number scanning signal, arranges and make pixel can be matrix-style.Shown in Fig. 5 A, scan drive circuit 14 produces three scanning signal COM1, COM2 and COM3, and data drive circuit 12 also produces three data signal SEG1, SEG2 and SEG3, to control 9 pixel 1-9.Because scanning signal COM1 of the present invention, COM2, COM3 have the complex data pulse wave of plural number scanning pulse wave and corresponding data signal SEG1, SEG2 and SEG3, so the present invention can reduce the influence of colour mixture.Below cooperate diagram to describe.
Because the embodiment of Fig. 5 B has three scanning signal COM1, COM2 and COM3, so finish a look preface cycle of a picture is red backlight R, green colored backlights source G, blue backlight B repeating query three times, be 3 backlight cycle RGB, according to the waveform of Fig. 5 B, the shown color of pixel 1-9 is respectively red, green, blue, Huang, purple, indigo, black, white, white.With first pixel 1, its pixel voltages is the difference of accurate position and the accurate interdigit of the data pulse wave of the first data signals SEG1 of the scanning pulse wave of the first scanning signal COM1, be the COM1-SEG1 shown in Fig. 5 B, it is that red backlight passes liquid crystal in first backlight cycle, and green colored backlights source and blue backlight do not pass liquid crystal.Afterwards, then be that 50% red backlight, 50% green colored backlights source and 50% blue backlight pass liquid crystal and mix and be white second backlight cycle.At last, be similarly that 50% red backlight, 50% green colored backlights source and 50% blue backlight pass liquid crystal and mix and be white the 3rd backlight cycle.So first pixel, 1 shown color is colour mixture red and white, because white not too can influence color, so 1 meeting of first pixel shows red.
In like manner, the pixel voltages of the 4th pixel 4 is the second scanning signal COM2-SEG1, and it is that to pass that liquid crystal mixes be white for 50% red backlight, 50% green colored backlights source and 50% blue backlight in first backlight cycle.Afterwards, it is yellow passing for red backlight and green colored backlights source that liquid crystal mixes second backlight cycle.At last, be that 50% red backlight, 50% green colored backlights source and 50% blue backlight pass liquid crystal and mix and be white the 3rd backlight cycle.So the 4th pixel 4 shown colors are colour mixture yellow and white, because white not too can influence color, so 4 meetings of the 4th pixel show yellow.As shown in the above description, this embodiment is by by allowing each pixel 1-9 and white carry out colour mixture, and do not influence the color that original desire shows, so can reduce the influence of colour mixture, and can improve chroma-luminance, and then promote the effect of display frame.
See also Fig. 6 A and Fig. 6 B, pixel synoptic diagram and sequential chart for another preferred embodiment of the present invention, this embodiment is same as the embodiment of Fig. 4, and after red backlight R, green colored backlights source G, blue backlight B, add white backlight source W, with the kind of the shown color of increase pixel 1-9, and can increase brightness.
Therefore, the control circuit of color-sequence liquid crystal display (LCD) device of the present invention and control method are by controlling the display module show image by the plural number scanning pulse wave of scanning signal and the complex data pulse wave of data signals, and the accurate position of those data pulse waves can change according to different images with the accurate position of those scanning pulse waves, so, can reduce the power supply that control circuit consumes, with the saving power supply, and can reduce of the influence of the colour mixture of color-sequence liquid crystal display (LCD) device to show image.
In sum, it only is a preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, all according to impartial for it variation of the described shape of claim scope of the present invention, structure, feature and spiritual institute and modification, all should be included in the claim scope of the present invention.
Claims (18)
1. the control circuit of a color-sequence liquid crystal display (LCD) device is characterized in that, it comprises:
One light source driving circuit produces one and drives signal and be sent to this color-sequence liquid crystal display (LCD) device, to control the backlight that this color-sequence liquid crystal display (LCD) device produces different colours;
One data drive circuit produces a data signals and is sent to this color-sequence liquid crystal display (LCD) device, and this data signals comprises the complex data pulse wave; And
Scan driving circuit produces the one scan signal and is sent to this color-sequence liquid crystal display (LCD) device, and this scanning signal comprises plural number scanning pulse wave, and respectively corresponding those data pulse waves;
Wherein, this color-sequence liquid crystal display (LCD) device scans pulse wave, those data pulse waves and this backlight according to those and shows an image, and the accurate position of those data pulse waves changes according to different images with the accurate position of those scanning pulse waves.
2. control circuit according to claim 1 is characterized in that, wherein the accurate position of those scanning pulse waves changes according to the color of this image.
3. control circuit according to claim 1 is characterized in that, more comprises:
One sequential control circuit produces a sequential signal and is sent to this light source driving circuit, this data drive circuit and this scan drive circuit, to produce this driving signal, this data signals and this scanning signal according to this sequential signal respectively.
4. control circuit according to claim 3 is characterized in that, wherein this sequential control circuit, this data drive circuit and this scan drive circuit are integrated into a control chip.
5. control circuit according to claim 4 is characterized in that wherein this control chip more is integrated with this light source driving circuit.
6. control circuit according to claim 1 is characterized in that, wherein this driving signal is controlled the backlight that this color-sequence liquid crystal display (LCD) device produces and comprised a red backlight, a green colored backlights source and a blue backlight.
7. control circuit according to claim 6 is characterized in that, wherein this backlight more comprises a white backlight source.
8. control circuit according to claim 7 is characterized in that, wherein this white backlight source result from this redness backlight, this green colored backlights source or should the blueness backlight after.
9. control circuit according to claim 1 is characterized in that, wherein this color-sequence liquid crystal display (LCD) device comprises:
One backlight module drives signal according to this, produces the backlight of different colours; And
One display module according to this data signals, this scanning signal and this backlight, shows this image.
10. control circuit according to claim 1 is characterized in that, it is applied to a Twisted Nematic LCD or a super-twist nematic liquid crystal display.
11. the control method of a color-sequence liquid crystal display (LCD) device is characterized in that, its step comprises:
Produce one and drive signal, and be sent to this color-sequence liquid crystal display (LCD) device, to control the backlight that this color-sequence liquid crystal display (LCD) device produces different colours;
Produce a data signals, and be sent to this color-sequence liquid crystal display (LCD) device, this data signals comprises the complex data pulse wave; And
Produce the one scan signal, and be sent to this color-sequence liquid crystal display (LCD) device, this scanning signal comprises plural number scanning pulse wave, and respectively corresponding those data pulse waves;
Wherein, this color-sequence liquid crystal display (LCD) device scans pulse wave, those data pulse waves and this backlight according to those and shows an image, and the accurate position of those data pulse waves changes according to different images with the accurate position of those scanning pulse waves.
12. control method according to claim 11 is characterized in that, wherein those accurate positions of scanning pulse wave change according to the color of this image.
13. control method according to claim 11 is characterized in that, more comprises:
Produce a sequential signal, to produce this driving signal, this data signals and this scanning signal according to this sequential signal.
14. control method according to claim 11 is characterized in that, wherein this driving signal is controlled the backlight that this color-sequence liquid crystal display (LCD) device produces and is comprised a red backlight, a green colored backlights source and a blue backlight.
15. control method according to claim 14 is characterized in that, wherein this backlight more comprises a white backlight source.
16. control method according to claim 15 is characterized in that, wherein this white backlight source results from after this redness backlight, this green colored backlights source and this blueness backlight.
17. control method according to claim 11, it is characterized in that, wherein this driving signal is sent to a backlight module of this color-sequence liquid crystal display (LCD) device, to produce the backlight of different colours, this data signals and this scanning signal are sent to a display module of this color-sequence liquid crystal display (LCD) device, and this display module shows this image according to this data signals, this scanning signal and this backlight.
18. control method according to claim 11 is characterized in that, it is applied to a Twisted Nematic LCD or a super-twist nematic liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101469177A CN101388192A (en) | 2008-08-26 | 2008-08-26 | Control circuit of color sequential LCD equipment and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101469177A CN101388192A (en) | 2008-08-26 | 2008-08-26 | Control circuit of color sequential LCD equipment and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101388192A true CN101388192A (en) | 2009-03-18 |
Family
ID=40477569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101469177A Pending CN101388192A (en) | 2008-08-26 | 2008-08-26 | Control circuit of color sequential LCD equipment and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101388192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243842A (en) * | 2010-05-10 | 2011-11-16 | 立景光电股份有限公司 | Color sequence type display and light source control method thereof |
| CN112992040A (en) * | 2021-04-13 | 2021-06-18 | 成都天马微电子有限公司 | Adjusting circuit and display device |
-
2008
- 2008-08-26 CN CNA2008101469177A patent/CN101388192A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243842A (en) * | 2010-05-10 | 2011-11-16 | 立景光电股份有限公司 | Color sequence type display and light source control method thereof |
| CN102243842B (en) * | 2010-05-10 | 2013-11-06 | 立景光电股份有限公司 | Color sequence type display and light source control method thereof |
| CN112992040A (en) * | 2021-04-13 | 2021-06-18 | 成都天马微电子有限公司 | Adjusting circuit and display device |
| CN112992040B (en) * | 2021-04-13 | 2022-11-22 | 成都天马微电子有限公司 | Adjusting circuit and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10025132B2 (en) | Liquid crystal display device and driving method thereof | |
| JP3215913B2 (en) | Display control method of liquid crystal display device and liquid crystal display device | |
| TWI387951B (en) | Display method with interlacing reversal scan and device thereof | |
| CN101529491B (en) | Video and content controlled backlight | |
| US8581887B2 (en) | Color-sequential display method | |
| US8107040B2 (en) | Transflective liquid crystal display panel, liquid crystal display module and liquid crystal display thereof | |
| US20070152953A1 (en) | Liquid crystal display device and apparatus and method for driving the same | |
| CN101435935B (en) | Double-field sequence LCD device display method | |
| CN201369152Y (en) | RGB backlight type color liquid crystal display component | |
| CN1854830A (en) | Display device | |
| US7692624B2 (en) | Liquid crystal display, method for displaying color images, and method for controlling light sources of an LCD panel | |
| US20080002101A1 (en) | Color display device | |
| CN101310211B (en) | Liquid crystal display device and driving method thereof | |
| CN100529914C (en) | LCD apparatus with uniform LC layer | |
| TWI384452B (en) | Control circuit and control method of color sequential liquid crystal display device | |
| CN101471043A (en) | Field sequence type LCD apparatus and its driving method | |
| US8502760B2 (en) | Circuit for controlling color sequential liquid crystal display and method for scanning the same | |
| CN101441356A (en) | Backlight source module group and drive method thereof | |
| CN101859037A (en) | Liquid crystal display (LCD) device | |
| US20080079677A1 (en) | Method for driving display | |
| CN101388192A (en) | Control circuit of color sequential LCD equipment and control method | |
| CN100552765C (en) | The method of the display packing of LCD and coloured image and control light source | |
| TWI404026B (en) | Color adjustment liquid crystal display device and its adjustment method | |
| CN114863888A (en) | Image display synchronization control system and synchronization control method thereof | |
| CN101154355A (en) | Display device driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |