CN100462816C - Crystal display device and driving method thereof - Google Patents

Crystal display device and driving method thereof Download PDF

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Publication number
CN100462816C
CN100462816C CNB2007101535441A CN200710153544A CN100462816C CN 100462816 C CN100462816 C CN 100462816C CN B2007101535441 A CNB2007101535441 A CN B2007101535441A CN 200710153544 A CN200710153544 A CN 200710153544A CN 100462816 C CN100462816 C CN 100462816C
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light
light source
liquid crystal
pixel
crystal indicator
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CN101126868A (en
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李锡烈
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AU Optronics Corp
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AU Optronics Corp
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Abstract

The utility model discloses a liquid crystal display and the driving method. The utility model is characterized in that the liquid crystal display comprises a plurality of pixels and a plurality of light sources, each pixel comprises a first sub-pixel and a second sub-pixel, each light source is used to generate the different wave length light, a first reflecting surface of a light guide plate is used to guide the first wave length light and the third wave length light, a second reflecting surface is used to guide a second wave length light and a fourth wave length light, a plurality of condensing lens are used to condense the first wave length light guided by the first reflecting surface to the first sub-pixel and to condense the third wave length light to the first pixel, or to condense the second wavelength light guided by the second reflecting surface and the fourth wavelength light to the second pixel, and two sub-pixels are able to generate and combine into the different gray scale based on the different wavelength light emitted by the light source.

Description

Liquid crystal indicator and driving method thereof
Technical field
The present invention relates to a kind of liquid crystal indicator, refer to a kind of netrual colour optical filter especially but still possess the liquid crystal indicator and the driving method thereof of display quality.
Background technology
Function advanced person's display becomes the valuable feature of consumption electronic product now gradually, and wherein liquid crystal indicator has become the display with high-resolution color screen of various electronic equipments such as mobile phone, PDA(Personal Digital Assistant), digital camera, computer screen or the widespread use of notebook computer screen institute gradually.
See also Fig. 1, be the structural representation of available liquid crystal display device 10.Liquid crystal indicator 10 is mainly assembled by assemblies such as light source (for example cold cathode fluorescent tube, thermic cathode fluorimetric pipe, light emitting diode) 12, reflecting plate (Reflector) 14, light guide plate (Light guide plate) 16, diffusion sheet (Diffusionsheet) 18, polaroid (Polarization film) 20 and liquid crystal panels (liquid crystalcell) 22.Liquid crystal panel 22 comprises substrate 24 and optical filter 26.Liquid crystal panel 22 comprises a plurality of pixels, and each pixel is by representing that respectively red (Red), green (Green), blue (Blue) trichromatic sub-pixel constitute.
After the light of light source 12 ejaculations enters light guide plate 16, can guide the light of injecting it is scattered in uniform surface light source.The reflecting plate 14 that is arranged in light guide plate 16 1 sides can prevent that light source from leaking outside with the light reflected back light guide plate 16 of directive reflecting plate 14 directions, to increase the service efficiency of light.The light that is penetrated by light guide plate 16 is again through the equal light action of diffusion sheet 18, improve the brightness and uniformity coefficient of light source after, light is injected in the liquid crystal panel 22 by polaroid 20.The liquid crystal molecule that each sub-pixel is corresponded in the liquid crystal panel 22 can change its rotation direction according to the voltage that chip for driving provides, and adjusts the luminous flux that passes through according to this.In addition, because the light that light source 12 penetrates is generally dull white light, so in order to produce the light of different colours, the optical filter 26 of liquid crystal indicator 10 comprises filter area 26a, 26b, the 26c of Red Green Blue, filter area 26a, 26b, 26c correspond to the sub-pixel of Red Green Blue respectively, and the light by liquid crystal molecule will produce the light of different colours after through filter area 26a, 26b, 26c.
The making of colored filter is on glass substrate, with the organic material of Red Green Blue, is produced within each sub-pixel.Yet colored filter is that cost is the highest in the liquid crystal indicator key part and component.If can reduce the use of colored filter, will help to reduce the manufacturing cost of entire liquid crystal display device.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of netrual colour optical filter but still possess the liquid crystal indicator and the driving method thereof of display quality, to solve the problem of above-mentioned prior art.
A kind of liquid crystal indicator provided by the invention, it comprises a plurality of pixel cells, and each pixel cell comprises one first sub-pixel and one second sub-pixel.Liquid crystal indicator of the present invention also comprises first light source, secondary light source, the 3rd light source, the 4th light source, light guide plate and a plurality of light-collecting lens.First light source is used for producing the light with first wavelength coverage.Secondary light source is used for producing the light with second wavelength coverage.The 3rd light source is used for producing the light with wavelength range.The 4th light source is used for producing the light with the 4th wavelength coverage.Light guide plate comprises a plurality of first grooves and a plurality of second groove, each first groove has first reflecting surface, be used for guiding the light of this first wavelength coverage and the light of this wavelength range, each second groove has second reflecting surface, is used for guiding the light of this second wavelength coverage and the light of the 4th wavelength coverage.A plurality of light-collecting lens are arranged between light guide plate and a plurality of pixel cell, each light-collecting lens is used for assembling the light of first wavelength coverage of this first reflecting surface guiding and the light of assembling this wavelength range to this first sub-pixel, or is used for assembling the light of this second wavelength coverage of this second reflecting surface guiding and the light of assembling the 4th wavelength coverage to this second sub-pixel.
The present invention provides a kind of liquid crystal indicator in addition, and it comprises a plurality of pixel cells, and each pixel cell comprises first sub-pixel and second sub-pixel.This liquid crystal indicator also comprises first light source, secondary light source, the 3rd light source, the 4th light source, first light guide plate, second light guide plate and a plurality of light-collecting lens.First light source is used for producing the light with first wavelength coverage.Secondary light source is used for producing the light with second wavelength coverage.The 3rd light source is used for producing the light with wavelength range.The 4th light source is used for producing the light with the 4th wavelength coverage.First light guide plate comprises a plurality of first grooves, and each first groove has first reflecting surface, is used for guiding the light of this first wavelength coverage and the light of this wavelength range.Second light guide plate comprises a plurality of second grooves, and each second groove has second reflecting surface, is used for guiding the light of this second wavelength coverage and the light of the 4th wavelength coverage.A plurality of light-collecting lens are arranged between this light guide plate and this a plurality of pixels, each light-collecting lens is used for assembling the light of this first wavelength coverage of this first reflecting surface guiding and the light of assembling this wavelength range to this first sub-pixel, or is used for assembling the light of second wavelength coverage of this second reflecting surface guiding and the light of assembling the 4th wavelength coverage to this second sub-pixel.
The driving method of a kind of liquid crystal indicator provided by the invention, this liquid crystal indicator comprises first light source, secondary light source, the 3rd light source, the 4th light source, this method is in order to provide light source to a plurality of pixel cells, each pixel cell comprises one first sub-pixel and one second sub-pixel, and wherein this method comprises: a light guide plate and a light-collecting lens are set between light source and these a plurality of pixel cells; And set to open this first light source and open this secondary light source time, make it be different from the time of opening the 3rd light source and opening the 4th light source, guide first source light and the 3rd source light to the first sub-pixel by this light guide plate and this light-collecting lens, and guiding secondary light source light and the 4th source light to the second sub-pixel.
According to such scheme, the present invention is significant compared to the effect of prior art: liquid crystal indicator of the present invention is provided with a plurality of light sources, can send the light of different wavelength range in one scan in the time, colored filter must be set to produce the problem of different wavelength range light in order to solve traditional liquid crystal indicator, thus, liquid crystal indicator can no longer need to be provided with colored filter, reduces the cost of making liquid crystal indicator.
Description of drawings
Fig. 1 is the structural representation of available liquid crystal display device.
Fig. 2 A and Fig. 2 B illustrate an embodiment of liquid crystal indicator of the present invention respectively in the synoptic diagram of different period runnings.
Fig. 3 be four sub-pixels of pixel cell in one scan in the period, its corresponding liquid crystal molecule changes the synoptic diagram of period.
Fig. 4 A and Fig. 4 B illustrate another embodiment of liquid crystal indicator of the present invention respectively in the synoptic diagram of different period runnings.
The main element symbol description
10,100 liquid crystal indicators, 12 light sources
14 reflecting plates, 16 light guide plate
18 diffusion sheets, 22 liquid crystal panels
24 substrates, 26 optical filters
26a-c filter area 200 liquid crystal indicators
31 first grooves, 32 second grooves
41 first sub-pixels, 42 second sub-pixels
The 52a first light source 52b secondary light source
52c the 3rd light source 52d the 4th light source
54 substrates, 56 light guide plate
58 light-collecting lens, 60 polaroids
62 liquid crystal panels, 561,563 first incidence surfaces
562,564 second incidence surfaces, 311 first reflectings surface
312 first planes, 321 second reflectings surface
322 second plane 56a, 56b light guide plate
Embodiment
Fig. 2 A and Fig. 2 B are respectively an embodiment of liquid crystal indicator of the present invention in the synoptic diagram of different period runnings.Liquid crystal indicator 100 comprises the first light source 52a, secondary light source 52b, the 3rd light source 52c, the 4th light source 52d, light guide plate 56, two polaroids 60, a plurality of light-collecting lens 58 and liquid crystal panel 62.Liquid crystal panel 62 comprises substrate 54 and a plurality of pixel cell, and each pixel cell comprises first sub-pixel 41 and second sub-pixel 42.In preferred embodiment, each pixel cell corresponds to a light-collecting lens 58, that is first sub-pixel 41 of each pixel cell and second sub-pixel 42 are corresponding to a light-collecting lens 58.Light guide plate 56 comprises first incidence surface 561 and second incidence surface 562, first incidence surface 561 is with respect to second incidence surface 562, the first light source 52a and the 3rd light source 52c are arranged at a side of first incidence surface 561, and secondary light source 52b and the 4th light source 52d are arranged at a side of second incidence surface 562.The first light source 52a is used for producing the light with first wavelength coverage; In the present embodiment, the first light source 52a is a red light-emitting diode, and the light of this first wavelength coverage is the light that meets the red light wavelength scope.Secondary light source 52b is used for producing the light with one second wavelength coverage; In the present embodiment, secondary light source 52b is a blue light-emitting diode, and the light of this second wavelength coverage is the light that meets the blue light wavelength scope.The 3rd light source 52c is used for producing the light with wavelength range; In the present embodiment, the 3rd light source 52c is a green light LED, and the light of this wavelength range is the light that meets green wavelength.The 4th light source 52d is used for producing the light with the 4th wavelength coverage; In the present embodiment, the 4th light source 52d is a Yellow light emitting diode, and the light of the 4th wavelength coverage is the light that meets gold-tinted.In another embodiment, the 4th light source 52d can be a white light emitting diode, and the light of the 4th wavelength coverage is for meeting the white light wavelength coverage.
Light guide plate 56 comprises a plurality of first grooves 31 and a plurality of second groove 32, and each first groove 31 has first reflecting surface 311 and first plane 312, and wherein the angle of first plane 312 and first reflecting surface 311 is spent to 45 degree between 15.Each second groove 32 has second reflecting surface 321 and second plane 322, and wherein the angle of second plane 322 and second reflecting surface 321 is to 45 degree between 15 degree.In preferred embodiment, the normal direction of first reflecting surface 311 is vertical mutually with the normal direction of second reflecting surface 321.
After green glow that ruddiness that the first light source 52a penetrates or the 3rd light source 52c penetrate enters light guide plate 56, first reflecting surface 311 can with this ruddiness or green glow be directed to uniform surface light source, similarly, second reflecting surface 321 can with the blue light of secondary light source 52b ejaculation or the gold-tinted of the 4th light source 52d ejaculation be directed to uniform surface light source.Then light passes polaroid 60, the light that deviation light guide plate 56 penetrates.When light was injected a plurality of light-collecting lens 58, light-collecting lens 58 was used for assembling ruddiness, blue light, green glow and gold-tinted, and ruddiness and green glow are penetrated towards first sub-pixel, 41 directions, and make blue light and and gold-tinted penetrate towards second sub-pixel, 42 directions.
See also Fig. 2 A, Fig. 2 B and Fig. 3.Fig. 3 be two sub-pixel 41-42 of a pixel cell in one scan in the period, its corresponding liquid crystal molecule changes the synoptic diagram of period.At this is that the liquid crystal indicator of 60Hz (that is 16.7ms) is an example with the sweep frequency, and each pixel cell can upgrade a secondary data every 16.7ms.When period T1, scanning voltage signal allows the transistor of first sub-pixel 41 open, and makes the liquid crystal molecule in the sub-pixel 41 of winning begin to rotate according to voltage data signal.When period T2, the liquid crystal molecules in first sub-pixel 41 rotate gradually according to voltage data signal, and scanning voltage signal allows the transistor of second sub-pixel 42 open, and make that the liquid crystal molecules in second sub-pixel 42 begin to rotate according to voltage data signal.When period T3, shown in Fig. 2 A, open the first light source 52a in order to produce ruddiness and to open secondary light source 52b in order to produce blue light, this moment first sub-pixel 41 and 42 meetings of second sub-pixel divide and present different brightness according to the Liquid Crystal Molecules Alignment mode in it.Next, when period T4, scanning voltage signal allows the transistor of first sub-pixel 41 open, and makes the liquid crystal molecule in the sub-pixel 41 of winning begin to rotate according to voltage data signal.When period T5, the liquid crystal molecules in first sub-pixel 41 rotate gradually according to voltage data signal, and scanning voltage signal allows the transistor of second sub-pixel 42 open, and make that the liquid crystal molecules in second sub-pixel 42 begin to rotate according to voltage data signal.When period T6, shown in Fig. 2 B, open the 3rd light source 52c in order to produce green glow and to open the 4th light source 52d in order to produce gold-tinted, this moment, first sub-pixel 41 and second sub-pixel 42 can present different GTGs according to the Liquid Crystal Molecules Alignment mode in it by branch.
In sum, each pixel cell is in each scans the time interval (16.7ms), and two sub-pixels 41,42 can be combined into different GTGs according to the light of light source different wave length that 52a-52d sends and the arrangement mode generation of liquid crystal molecule respectively.Because the interval of sweep time is extremely short, so the user does not visually have too big difference.
See also Fig. 4 A and Fig. 4 B.Fig. 4 A and Fig. 4 B illustrate another embodiment of liquid crystal indicator of the present invention respectively in the synoptic diagram of different period runnings.Liquid crystal indicator 200 comprises the first light source 52a, secondary light source 52b, the 3rd light source 52c, the 4th light source 52d, the first light guide plate 56a, the second light guide plate 56b, two polaroids 60, a plurality of light-collecting lens 58 and liquid crystal panel 62.Liquid crystal panel 62 comprises a plurality of pixel cells, and each pixel cell comprises first sub-pixel 41 and second sub-pixel 42.In preferred embodiment, each pixel cell corresponds to a light-collecting lens 58, that is first sub-pixel 41 of each pixel cell and second sub-pixel 42 are corresponding to a light-collecting lens 58.Light guide plate 56a comprises first incidence surface 563 and second incidence surface, 564, the first incidence surfaces 563 are with respect to second incidence surface 564.The first light source 52a and the 3rd light source 52c are arranged at a side of first incidence surface 563, and secondary light source 52b and the 4th light source 52d are arranged at a side of second incidence surface 564.The first light source 52a is used for producing the light with first wavelength coverage; In the present embodiment, the first light source 52a is a red light-emitting diode, and the light of this first wavelength coverage is the light that meets the red light wavelength scope.Secondary light source 52b is used for producing the light with second wavelength coverage; In the present embodiment, secondary light source 52b is a blue light-emitting diode, and the light of this second wavelength coverage is the light that meets the blue light wavelength scope.The 3rd light source 52c is used for producing the light with wavelength range; In the present embodiment, the 3rd light source 52c is a green light LED, and the light of this wavelength range is the light that meets green wavelength.The 4th light source 52d is used for producing the light with the 4th wavelength coverage; In the present embodiment, the 4th light source 52d is a Yellow light emitting diode, and the light of the 4th wavelength coverage is the light that meets gold-tinted.In another embodiment, the 4th light source 52d can be a white light emitting diode, and the light of the 4th wavelength coverage is for meeting the white light wavelength coverage.
The first light guide plate 56a comprises a plurality of first grooves 31, and each first groove 31 has first reflecting surface 311 and first plane 312.The angle of first plane 312 and first reflecting surface 311 is to 45 degree between 15 degree.Each second light guide plate 56b has a plurality of second grooves 32, and the angle that each second groove 32 has second reflecting surface 321 and 322, the second planes 322, second plane and second reflecting surface 321 is to 45 degree between 15 degree.In preferred embodiment, the normal direction of first reflecting surface 311 is vertical mutually with the normal direction of second reflecting surface 321.
After green glow that ruddiness that the first light source 52a penetrates or the 3rd light source 52c penetrate enters the first light guide plate 56a, first reflecting surface, 311 meetings of the first light guide plate 56a are with this ruddiness or green glow is directed to uniform surface light source, similarly, second reflecting surface 321 of the second light guide plate 56b can with the blue light of secondary light source 52b ejaculation or the gold-tinted of the 4th light source 52d ejaculation be directed to uniform surface light source.Then light passes the light that polaroid 60 first, second light guide plate of meeting deviation 56a, 56b penetrate.When light was injected a plurality of light-collecting lens 58, light-collecting lens 58 was used for assembling ruddiness, blue light, green glow and gold-tinted, ruddiness and green glow is penetrated towards first sub-pixel, 41 directions, and blue light and gold-tinted are penetrated towards second sub-pixel, 42 directions.
Except liquid crystal indicator 200 was provided with two light guide plate 56a, 56b, the operation principles of liquid crystal indicator 200 and liquid crystal indicator 100 were similar, and the luminous time of light source 52a-52d can be consulted Fig. 3, does not give unnecessary details in addition at this.
In addition, in the aforementioned embodiment, the combination of light source 52a-52d can optionally be adjusted, the light source 52a that for example produces ruddiness and the light source 52c that produces green glow can be arranged on the same side of light guide plate, and the light source 52b that produces blue light and the light source 52d that produces gold-tinted then are arranged on the opposite side of light guide plate.
In another embodiment, the wavelength coverage that light source 52a-52d produces also can need to adjust according to the deviser, not necessarily is limited in the wavelength coverage of red, green, blue, Huang Sise.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion when looking the scope that appended claims defines.

Claims (22)

1. a liquid crystal indicator is characterized in that, comprises:
A plurality of pixel cells, each pixel cell comprise one first sub-pixel and one second sub-pixel;
One first light source is used for producing the light with one first wavelength coverage;
One secondary light source is used for producing the light with one second wavelength coverage;
One the 3rd light source is used for producing the light with a wavelength range;
One the 4th light source is used for producing the light with one the 4th wavelength coverage;
One light guide plate, comprise a plurality of first grooves and a plurality of second groove, each first groove has one first reflecting surface, be used for guiding the light of this first wavelength coverage and the light of this wavelength range, each second groove has one second reflecting surface and is used for guiding the light of this second wavelength coverage and the light of the 4th wavelength coverage; And
A plurality of light-collecting lens, be arranged between this light guide plate and those pixel cells, each light-collecting lens is used for assembling the light of the light of this first wavelength coverage of this first reflecting surface guiding and this wavelength range to this first sub-pixel, or the light that is used for assembling the light of this second wavelength coverage of this second reflecting surface guiding and the 4th wavelength coverage is to this second sub-pixel.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, this first light source is a red light-emitting diode, and the light of this first wavelength coverage is the light that meets the red light wavelength scope.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, this secondary light source is a blue light-emitting diode, and the light of this second wavelength coverage is the light that meets the blue light wavelength scope.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, the 3rd light source is a green light LED, and the light of this wavelength range is the light that meets green wavelength.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, the 4th light source is a gold-tinted or white light emitting diode, and the light of the 4th wavelength coverage is the light that meets gold-tinted or white light wavelength coverage.
6. liquid crystal indicator as claimed in claim 1, it is characterized in that, this light guide plate comprises one first incidence surface and one second incidence surface, this first incidence surface is with respect to this second incidence surface, this first light source and the 3rd light source are arranged at a side of this first incidence surface, and this secondary light source and the 4th light source are arranged at a side of this second incidence surface.
7. liquid crystal indicator as claimed in claim 6, it is characterized in that, this each first groove comprises one first plane in addition, the angle of this first plane and this first reflecting surface is spent to 45 degree between 15, this each second groove comprises one second plane in addition, and the angle of this second plane and this second reflecting surface is spent to 45 degree between 15.
8. liquid crystal indicator as claimed in claim 6 is characterized in that, the normal direction of this first reflecting surface is vertical mutually with the normal direction of this second reflecting surface.
9. liquid crystal indicator as claimed in claim 1 is characterized in that, also comprises a polaroid, is arranged between this light guide plate and this a plurality of light-collecting lens, is used for the light that this light guide plate of deviation penetrates.
10. a liquid crystal indicator is characterized in that, comprises:
A plurality of pixel cells, each pixel cell comprise one first sub-pixel and one second sub-pixel;
One first light source is used for producing the light with one first wavelength coverage;
One secondary light source is used for producing the light with one second wavelength coverage;
One the 3rd light source is used for producing the light with a wavelength range;
One the 4th light source is used for producing the light with one the 4th wavelength coverage;
One first light guide plate comprises a plurality of first grooves, and each first groove has one first reflecting surface, is used for guiding the light of this first wavelength coverage and the light of this wavelength range;
One second light guide plate, it comprises a plurality of second grooves, and each second groove has one second reflecting surface, is used for guiding the light of this second wavelength coverage and the light of the 4th wavelength coverage; And
A plurality of light-collecting lens, be arranged between this light guide plate and this a plurality of pixel cells, each light-collecting lens is used for assembling the light of the light of this first wavelength coverage of this first reflecting surface guiding and this wavelength range to this first sub-pixel, or the light that is used for assembling the light of this second wavelength coverage of this second reflecting surface guiding and the 4th wavelength coverage is to this second sub-pixel.
11. liquid crystal indicator as claimed in claim 10 is characterized in that, this first light source is a red light-emitting diode, and the light of this first wavelength coverage is the light that meets the red light wavelength scope.
12. liquid crystal indicator as claimed in claim 10 is characterized in that, this secondary light source is a blue light-emitting diode, and the light of this second wavelength coverage is the light that meets the blue light wavelength scope.
13. liquid crystal indicator as claimed in claim 10 is characterized in that, the 3rd light source is a green light LED, and the light of this wavelength range is the light that meets green wavelength.
14. liquid crystal indicator as claimed in claim 10 is characterized in that, the 4th light source is a gold-tinted or white light emitting diode, and the light of the 4th wavelength coverage is the light that meets gold-tinted or white light wavelength coverage.
15. liquid crystal indicator as claimed in claim 10, it is characterized in that, this first light guide plate comprises one first incidence surface, this second light guide plate comprises one second incidence surface, this first incidence surface is with respect to this second incidence surface, this first light source and the 3rd light source are arranged at a side of this first incidence surface, and this secondary light source and the 4th light source are arranged at a side of this second incidence surface.
16. liquid crystal indicator as claimed in claim 15, it is characterized in that, this each first groove comprises one first plane in addition, the angle of this first plane and this first reflecting surface is to 45 degree between 15 degree, this each second groove comprises one second plane in addition, and the angle of this second plane and this second reflecting surface is to 45 degree between 15 degree.
17. liquid crystal indicator as claimed in claim 15 is characterized in that, the normal direction of this first reflecting surface is vertical mutually with the normal direction of this second reflecting surface.
18. liquid crystal indicator as claimed in claim 10 is characterized in that, also comprises a polaroid, is arranged between this second light guide plate and this a plurality of light-collecting lens, is used for the light that this light guide plate of deviation penetrates.
19. the driving method of a liquid crystal indicator, this liquid crystal indicator comprises first light source, secondary light source, the 3rd light source, the 4th light source, this method is in order to provide light source to a plurality of pixel cells, each pixel cell comprises one first sub-pixel and one second sub-pixel, and wherein this method comprises:
One light guide plate and a light-collecting lens are set between light source and these a plurality of pixel cells; And
Setting is opened this first light source and is opened this secondary light source time, make it be different from the time of opening the 3rd light source and opening the 4th light source, guide first source light and the 3rd source light to the first sub-pixel by this light guide plate and this light-collecting lens, and guiding secondary light source light and the 4th source light to the second sub-pixel.
20. the driving method of liquid crystal indicator as claimed in claim 19, wherein, this first light source sends that ruddiness, this secondary light source send blue light, the 3rd light source sends green glow and the 4th light source sends gold-tinted.
21. the driving method of liquid crystal indicator as claimed in claim 19, wherein, this first light source and this secondary light source are opened simultaneously.
22. the driving method of liquid crystal indicator as claimed in claim 19, wherein, the 3rd light source and the 4th light source are opened simultaneously.
CNB2007101535441A 2007-09-21 2007-09-21 Crystal display device and driving method thereof Active CN100462816C (en)

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US20110267541A1 (en) * 2009-04-28 2011-11-03 Sharp Kabushiki Kaisha Display apparatus
KR102079616B1 (en) * 2016-06-17 2020-02-20 후아웨이 테크놀러지 컴퍼니 리미티드 Self-emissive array display control method, apparatus, and device
TWI628787B (en) * 2017-06-06 2018-07-01 友達光電股份有限公司 Pixel structure
CN110389469B (en) * 2018-04-20 2021-03-30 京东方科技集团股份有限公司 Display device and display method thereof

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JP2005258095A (en) * 2004-03-12 2005-09-22 Asti Corp Liquid crystal display device
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