CN103105708B - Based on the display device of double-layer liquid crystal Fabry-Perot filter - Google Patents
Based on the display device of double-layer liquid crystal Fabry-Perot filter Download PDFInfo
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- CN103105708B CN103105708B CN201310012995.9A CN201310012995A CN103105708B CN 103105708 B CN103105708 B CN 103105708B CN 201310012995 A CN201310012995 A CN 201310012995A CN 103105708 B CN103105708 B CN 103105708B
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Abstract
The invention discloses a kind of display device based on double-layer liquid crystal Fabry-Perot filter, it comprises: the double-layer liquid crystal Fabry-Perot filter of the pixelation be made up of the individual layer liquid crystal Fabry Perot wave filter of two-layer pixelation, the individual layer liquid crystal Fabry Perot wave filter of every layer of pixelation comprises some pixel cells of array, some pixel cells of each layer independently drive the pixel transmiting centre wavelength and do not offset, and each pixel cell of every layer aligns mutually; And to be connected with the double-layer liquid crystal Fabry-Perot filter of described pixelation for its backlight of transmission is provided and reflect not through the backlight module of backlight.Two-layer liquid crystal Fabry Perot wave filter is adopted to carry out gray scale adjustment, during gray modulation, backlight loss is very little, after gray scale regulates there is not drift in the centre wavelength of emergent light, in color modulation process, backlight loss is very little simultaneously, and backlight can utilize at this display device Inner eycle, substantially increases backlight utilization ratio.
Description
Technical field
The present invention relates to display technology field, particularly a kind of centre wavelength of transmitted light does not offset and the large display device based on double-layer liquid crystal Fabry-Perot filter of backlight utilization ratio.
Background technology
The display of current thin film transistor liquid crystal and TFT-LCD occupy most of market share in display market as the mainstream technology showing field, are widely used in little of hand-held mobile terminal, on greatly to 55 cun HDTV display screen.Although through long development TFT-LCD technology relative maturity, no matter be obtained in display performance in serviceable life and approve widely, but this technology still there is the place much had much room for improvement.Such as existing TFT-LCD technology regulates owing to principle utilizing the polarisation effect of liquid crystal to match with polaroid to realize gray scale, and utilize rgb filters to realize color adjustment, this absorptive-type element that all exists wherein causes overall optics utilization factor low, and the backlight utilization ratio of commercial TFT-LCD display is general only about 5%.
Although many trials have been done in the backlight utilization ratio improving TFT-LCD display by industry and academia, due to the restriction of its principle of work, as long as polaroid and optical filter still exist, so this problem will remain unchanged existence.Therefore most research is all intended to use special structure or device to replace this two kinds of elements, the such as Hsin-chu Novel LCD handing over rheum officinale second White Sect of Lamaism to award to mention in " Eco-Displays:The Color LCD ' the s Without Color Filtersand Polarizers " be published on JOURNAL OF DISPLAYTECHNOLOGY the 7th volume in 2011 just instead of polaroid and optical filter by the application of the technology such as Polymer Dispersed Liquid Crystal and the sequence display of LED dot matrix backlight field, and backlight utilization ratio is significantly promoted.But the profile of displaying contents can be made to thicken because field sequence shows the color breakup (color breakup) brought, still there is many potential problems in this novel liquid crystal display in application.And for example woods is happy gladly in 2009, Journal of the Society for Information Display to deliver
The Novel LCD mentioned in " Apolarizer-free flexible display using dye-doped liquid crystal gels ", use dyestuff to mix liquid crystal thus the restriction breaking away from polaroid is modulated light intensity, but this dyestuff mix liquid crystal can not realize gratifying contrast.But these are all significant trials are limited to various reason, not can solve current TFT-LCD problems faced.
Therefore, provide one can not rely on polaroid and colored filter, and the scheme that simultaneously can realize the novel display device of color and gray scale adjustment is necessary.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of display device based on double-layer liquid crystal Fabry-Perot filter, comprise backlight module and be positioned at the double-layer liquid crystal Fabry-Perot filter of the pixelation above described backlight module, the double-layer liquid crystal Fabry-Perot filter that described backlight module is described pixelation provides the backlight of transmission, the double-layer liquid crystal Fabry-Perot filter of described pixelation carries out gray scale and color modulation to described backlight, wherein:
The double-layer liquid crystal Fabry-Perot filter of described pixelation comprises the individual layer liquid crystal Fabry Perot wave filter of upper and lower two-layer pixelation, the individual layer liquid crystal Fabry Perot wave filter of every layer of pixelation comprises some pixel cells of array, each pixel cell of the individual layer liquid crystal Fabry Perot wave filter of every layer of pixelation mutually aligns and forms two-layer pixel unit, and some pixel cells of the individual layer liquid crystal Fabry Perot wave filter of described every layer of pixelation independently drive, the centre wavelength of the emergent light transmitted from the double-layer liquid crystal Fabry-Perot filter of described pixelation is not offset,
And not to be reflected back in described backlight module by the double-layer liquid crystal Fabry-Perot filter of described pixelation through the backlight of the double-layer liquid crystal Fabry-Perot filter of described pixelation and to re-use.
Preferably, some pixel cells of the individual layer liquid crystal Fabry Perot wave filter of described every layer of pixelation independently drive, the transmission peaks one of the individual layer liquid crystal Fabry Perot wave filter of upper and lower two-layer pixelation is offset to short wavelength, one to long wavelength shifted, by the superposition of two transmission spectrums, the centre wavelength of the emergent light transmitted from the double-layer liquid crystal Fabry-Perot filter of described pixelation is not offset.
Preferably, described pixel cell comprises:
First substrate and the second substrate, form top layer and the bottom of described pixel cell respectively;
Individual layer liquid crystal Fabry Perot wave filter, it is between described first substrate and the second substrate, the liquid crystal layer comprising multilayered medium reflection horizon, upper strata, lower floor's multilayered medium reflection horizon and be located at therebetween, described liquid crystal layer is separated into red pixel liquid crystal layer, green pixel liquid crystal layer, blue pixel liquid crystal layer by insulating course;
Lower floor's public electrode, it is located between described individual layer liquid crystal Fabry Perot wave filter and the second substrate;
And the red pixel upper electrode be located between described individual layer liquid crystal Fabry Perot wave filter and the first substrate and driving circuit, green pixel upper electrode and driving circuit, blue pixel upper electrode and driving circuit, described red pixel upper electrode and driving circuit, green pixel upper electrode and driving circuit, blue pixel upper electrode and driving circuit are relative with described red pixel liquid crystal layer, green pixel liquid crystal layer, blue pixel liquid crystal layer position respectively.
Preferably, described red pixel upper electrode and driving circuit, green pixel upper electrode and driving circuit and blue pixel upper electrode and driving circuit are respectively described individual layer liquid crystal Fabry Perot wave filter provides different voltage to make described individual layer liquid crystal Fabry Perot filter transmission go out a pixel.
Preferably, described pixel comprises red sub-pixel, green sub-pixels and blue subpixels.
Preferably, red pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective red transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, one offsets to short wavelength
Green pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective green transmissive compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, one offsets to short wavelength
Blue pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective blue transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, and one offsets to short wavelength.
Preferably, each sub-pixel transmission spectrum of described individual layer liquid crystal Fabry Perot wave filter pixel cell meets following formula:
Wherein: R is the reflectivity in upper and lower reflection horizon; λ is incident light vacuum wavelength, and n is the refractive index of liquid crystal layer, and θ is the angle of incident light and individual layer liquid crystal Fabry Perot wave filter pixel cell surface normal, and l is the thickness of liquid crystal layer.
Preferably, the red transmission spectrum superposition separately of upper and lower two-layer described individual layer liquid crystal Fabry Perot wave filter, respective green transmissive spectrum superposition, respective blue transmission spectrum superposition, transmits red sub-pixel, green sub-pixels and blue subpixels that centre wavelength does not offset respectively.
Preferably, what described backlight module sent is LED tri-coloured light.
Preferably, described backlight module comprises LED three-color light source, light guide plate, diffusion sheet and anti-reflection film.
Compared with prior art, the invention has the advantages that:
1. do not rely on polaroid and realize gray modulation, adopt two-layer liquid crystal Fabry Perot wave filter to carry out gray scale adjustment, in gray modulation process, backlight loss is very little, and after can keeping carrying out gray scale adjustment, the centre wavelength of emergent light drift does not occur;
2. do not rely on absorption-type colored filter and realize color modulation, in color modulation process, backlight loss is very little;
3. the characteristic utilizing fp filter reflectivity to filter, makes backlight can recycle between the double-layer liquid crystal Fabry-Perot filter of pixelation and backlight module, substantially increases backlight utilization ratio.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the display device structure schematic diagram based on double-layer liquid crystal Fabry-Perot filter of the embodiment of the present invention;
The pixel cell structure schematic diagram that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the back light module unit structure schematic diagram of the embodiment of the present invention;
The schematic diagram of the display device based on double-layer liquid crystal Fabry-Perot filter that Fig. 4 provides for the embodiment of the present invention;
One sub-pixel transmission spectrum schematic diagram of the first individual layer liquid crystal Fabry Perot wave filter that Fig. 5 provides for the embodiment of the present invention;
One sub-pixel transmission spectrum schematic diagram of the second individual layer liquid crystal Fabry Perot wave filter that Fig. 6 provides for the embodiment of the present invention;
The sub-pixel transmission spectrum schematic diagram through the first and second individual layer liquid crystal Fabry Perot wave filters that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below with the drawings and specific embodiments, the present invention will be further described.
Embodiment
As shown in Figure 1, present embodiments provide a kind of display device based on double-layer liquid crystal Fabry-Perot filter, it double-layer liquid crystal Fabry-Perot filter comprising backlight module 3 and be positioned at the pixelation above backlight module 3, the double-layer liquid crystal Fabry-Perot filter that backlight module 3 is described pixelation provides the backlight of transmission, and the double-layer liquid crystal Fabry-Perot filter of described pixelation carries out gray scale and color modulation to backlight;
The double-layer liquid crystal Fabry-Perot filter of wherein said pixelation comprises the individual layer liquid crystal Fabry Perot wave filter of two-layer pixelation, the i.e. individual layer liquid crystal Fabry Perot wave filter 1 of the first pixelation and the individual layer liquid crystal Fabry Perot wave filter 2 of the second pixelation, the individual layer liquid crystal Fabry Perot wave filter of each layer pixelation comprises some pixel cells of array respectively, some pixel cells of each layer independently drive the pixel transmiting centre wavelength and do not offset, the formation two-layer pixel unit and each pixel cell of the individual layer liquid crystal Fabry Perot wave filter of the pixelation of every layer aligns mutually,
And the backlight not through the double-layer liquid crystal Fabry-Perot filter of described pixelation is re-used by the double-layer liquid crystal Fabry-Perot filter back into backlight module 3 of described pixelation.
As shown in Figure 2, wherein said pixel cell comprises:
First substrate 4 and the second substrate 5, forms top layer and the bottom of described pixel cell respectively;
Individual layer liquid crystal Fabry Perot wave filter, it is between described first substrate 4 and the second substrate 5, and the liquid crystal layer comprising multilayered medium reflection horizon, upper strata 6, lower floor's multilayered medium reflection horizon 7 and be located at therebetween, described liquid crystal layer is separated into red pixel liquid crystal layer 8, green pixel liquid crystal layer 9, blue pixel liquid crystal layer 10 by insulating course 11;
Be located at the lower floor's public electrode 15 between described individual layer liquid crystal Fabry Perot wave filter and the second substrate 5;
And the red pixel upper electrode be located between described individual layer liquid crystal Fabry Perot wave filter and the first substrate 4 and driving circuit 12, green pixel upper electrode and driving circuit 13, blue pixel upper electrode and driving circuit 14, red pixel upper electrode and driving circuit 12, green pixel upper electrode and driving circuit 13, blue pixel upper electrode and driving circuit 14 respectively with red pixel liquid crystal layer 8, green pixel liquid crystal layer 9, blue pixel liquid crystal layer 10 position relatively and be respectively red pixel liquid crystal layer 8, green pixel liquid crystal layer 9, blue pixel liquid crystal layer 10 provides separate voltage.
Red pixel upper electrode and driving circuit 12, green pixel upper electrode and driving circuit 13 and blue pixel upper electrode and driving circuit 14 are respectively described individual layer liquid crystal Fabry Perot wave filter provides different voltage to make described individual layer liquid crystal Fabry Perot filter transmission go out a pixel, this pixel is by red sub-pixel, green sub-pixels and blue subpixels composition, described red sub-pixel, green sub-pixels and blue subpixels transmission are respectively from red pixel liquid crystal layer 8, green pixel liquid crystal layer 9, blue pixel liquid crystal layer 10 position transmits the complete pixel of common formation one.
The red pixel upper electrodes of described two alignment and driving circuit 12 provide two different voltages to make its respective red transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, and one offsets to short wavelength;
The green pixel upper electrodes of described two alignment and driving circuit 13 provide two different voltages to make its respective green transmissive compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, and one offsets to short wavelength;
The blue pixel upper electrodes of described two alignment and driving circuit 14 provide two different voltages to make its respective blue transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, and one offsets to short wavelength.The red transmission spectrum superposition separately of two-layer described individual layer liquid crystal Fabry Perot wave filter, respective green transmissive spectrum superposition, respective blue transmission spectrum superposition transmits red sub-pixel, green sub-pixels and the blue subpixels that centre wavelength does not offset respectively.Each sub-pixel transmission spectrum of described individual layer liquid crystal Fabry Perot wave filter pixel cell meets following formula:
Wherein: R=0.6 is the reflectivity in upper and lower reflection horizon; λ is incident light vacuum wavelength; N is the refractive index of liquid crystal layer; θ=0 is the angle of incident light and individual layer liquid crystal Fabry Perot wave filter pixel cell surface normal; L=320 nanometer is the thickness of liquid crystal layer.Individual layer liquid crystal Fabry Perot wave filter pixel cell provides the voltage of specifying to form different equivalent refractive indexs to drive corresponding liquid crystal layer, to mediate to the centre wavelength of transmission spectrum by red pixel upper electrode and driving circuit 12, green pixel upper electrode and driving circuit 13, blue pixel upper electrode and driving circuit 14.As shown in Figure 3, the LED lamp bar 22 that backlight module 3 is made up of multiple RGB three-color LED chip 23, light guide plate 21, diffusion sheet 20 and anti-reflection film 19 form.Thus the backlight that formation comprises RGB three kinds of colors uses for pixel.
As shown in Figure 4, the emergent light of backlight module 3 is made up of, corresponding to the three-color LED used in backlight module red spectral components 16, green spectral components 17, blue spectral component 18; Owing to not being absorb but reflection in the wavelength coverage of fp filter outside its transmission peaks, therefore for red sub-pixel, green sub-pixels, blue subpixels, the backlight of non-transmission will be reflected back toward in backlight module 3, through anti-reflection film 19, diffusion sheet 20, the scattering of light guide plate 21, reflection form backlight outgoing again, and are utilized by other pixel, so repeatedly recycle the utilization factor significantly improving backlight.
As shown in Figure 5, when applying certain voltage and making the refractive index of a liquid crystal layer of the individual layer liquid crystal Fabry Perot wave filter 1 of the first pixelation be n=1.63, the corresponding pixel transmission spectrum obtained, i.e. the transmission spectrum of a green sub-pixels of the individual layer liquid crystal Fabry Perot wave filter 1 of the first pixelation;
As shown in Figure 6, when applying certain voltage and making the refractive index of a liquid crystal layer of the individual layer liquid crystal Fabry Perot wave filter 2 of the second pixelation be n=1.66, the corresponding pixel transmission spectrum obtained, the transmission spectrum of the green sub-pixels that the individual layer liquid crystal Fabry Perot wave filter 2 of the second pixelation aligns with the green sub-pixels of the individual layer liquid crystal Fabry Perot wave filter 1 of the first pixelation;
Be illustrated in figure 7 the transmission spectrum that the two is superimposed, so modulated on twice filtered transmission spectrum as shown in FIG. intensity, but central homology wavelength still can maintain 532 nanometers.Therefore the individual layer liquid crystal Fabry Perot wave filter of two-layer independently pixelation up and down, its pixel cell close alignment also independently drives, the gray modulation unit formed for being alignd by upper and lower two-layer liquid crystal Fabry Perot wave filter makes the transmission peaks one of upper and lower two liquid crystal Fabry Perot wave filters offset to short wavelength by applying different voltage, one to long wavelength shifted, by the superposition of two transmission spectrums, thus after realizing also can keeping carrying out gray scale adjustment to the adjustment of backlight gray scale there is not drift in the centre wavelength of emergent light.
A kind of display device based on double-layer liquid crystal Fabry-Perot filter provided by the invention does not rely on polaroid and realizes gray modulation, two-layer liquid crystal Fabry Perot wave filter is adopted to carry out gray scale adjustment, in gray modulation process, backlight loss is very little, and after can keeping carrying out gray scale adjustment, the centre wavelength of emergent light drift does not occur; Not relying on absorption-type colored filter realizes color modulation simultaneously, and in color modulation process, backlight loss is very little; Moreover the characteristic utilizing fp filter reflectivity to filter, backlight can be recycled between the double-layer liquid crystal Fabry-Perot filter of pixelation and backlight module, substantially increase backlight utilization ratio.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this instructions, can make many modifications and variations.This instructions is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (9)
1. the display device based on double-layer liquid crystal Fabry-Perot filter, it is characterized in that, comprise backlight module and be positioned at the double-layer liquid crystal Fabry-Perot filter of the pixelation above described backlight module, the double-layer liquid crystal Fabry-Perot filter that described backlight module is described pixelation provides the backlight of transmission, the double-layer liquid crystal Fabry-Perot filter of described pixelation carries out gray scale and color modulation to described backlight, wherein:
The double-layer liquid crystal Fabry-Perot filter of described pixelation comprises the individual layer liquid crystal Fabry Perot wave filter of upper and lower two-layer pixelation, the individual layer liquid crystal Fabry Perot wave filter of every layer of pixelation comprises some pixel cells of array, each pixel cell of the individual layer liquid crystal Fabry Perot wave filter of every layer of pixelation mutually aligns and forms two-layer pixel unit, and some pixel cells of the individual layer liquid crystal Fabry Perot wave filter of described every layer of pixelation independently drive, the transmission peaks one of the individual layer liquid crystal Fabry Perot wave filter of upper and lower two-layer pixelation is offset to short wavelength, one to long wavelength shifted, by the superposition of two transmission spectrums, the centre wavelength of the emergent light transmitted from the double-layer liquid crystal Fabry-Perot filter of described pixelation is not offset,
And not to be reflected back in described backlight module by the double-layer liquid crystal Fabry-Perot filter of described pixelation through the backlight of the double-layer liquid crystal Fabry-Perot filter of described pixelation and to re-use.
2., as claimed in claim 1 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, described pixel cell specifically comprises:
First substrate and the second substrate, form top layer and the bottom of described pixel cell respectively;
Individual layer liquid crystal Fabry Perot wave filter, it is between described first substrate and the second substrate, the liquid crystal layer comprising multilayered medium reflection horizon, upper strata, lower floor's multilayered medium reflection horizon and be located between multilayered medium reflection horizon, upper strata and lower floor's multilayered medium reflection horizon, described liquid crystal layer is separated into red pixel liquid crystal layer, green pixel liquid crystal layer, blue pixel liquid crystal layer by insulating course;
Lower floor's public electrode, it is located between described individual layer liquid crystal Fabry Perot wave filter and the second substrate;
And the red pixel upper electrode be located between described individual layer liquid crystal Fabry Perot wave filter and the first substrate and driving circuit, green pixel upper electrode and driving circuit, blue pixel upper electrode and driving circuit, described red pixel upper electrode and driving circuit, green pixel upper electrode and driving circuit, blue pixel upper electrode and driving circuit are relative with described red pixel liquid crystal layer, green pixel liquid crystal layer, blue pixel liquid crystal layer position respectively.
3. as claimed in claim 2 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, described red pixel upper electrode and driving circuit, green pixel upper electrode and driving circuit and blue pixel upper electrode and driving circuit are respectively described individual layer liquid crystal Fabry Perot wave filter provides different voltage to make described individual layer liquid crystal Fabry Perot filter transmission go out a pixel.
4., as claimed in claim 1 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, described pixel comprises red sub-pixel, green sub-pixels and blue subpixels.
5., as claimed in claim 4 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that,
Red pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective red transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, one offsets to short wavelength
Green pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective green transmissive compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, one offsets to short wavelength
Blue pixel upper electrode in the individual layer liquid crystal Fabry Perot wave filter of described upper and lower two-layer pixelation and driving circuit provide two different voltages to make its respective blue transmission compose one to long wavelength shifted to the individual layer liquid crystal Fabry Perot wave filter be connected separately respectively, and one offsets to short wavelength.
6., as claimed in claim 5 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, each sub-pixel transmission spectrum of described individual layer liquid crystal Fabry Perot wave filter pixel cell meets following formula:
Wherein: R is the reflectivity in levels multilayered medium reflection horizon; λ is incident light vacuum wavelength; N is the refractive index of liquid crystal layer; θ is the angle of incident light and individual layer liquid crystal Fabry Perot wave filter pixel cell surface normal; L is the thickness of liquid crystal layer.
7. as claimed in claim 5 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, the red transmission spectrum superposition separately of upper and lower two-layer described individual layer liquid crystal Fabry Perot wave filter, respective green transmissive spectrum superposition, respective blue transmission spectrum superposition, transmits red sub-pixel, green sub-pixels and blue subpixels that centre wavelength does not offset respectively.
8., as claimed in claim 1 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, what described backlight module sent is LED tri-coloured light.
9., as claimed in claim 8 based on the display device of double-layer liquid crystal Fabry-Perot filter, it is characterized in that, described backlight module comprises LED three-color light source, light guide plate, diffusion sheet and anti-reflection film.
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| CN103293760B (en) * | 2013-07-02 | 2015-06-03 | 深圳市华星光电技术有限公司 | Display device based on double-layer liquid crystal Fabry-Perot filter module |
| CN110890028B (en) * | 2018-09-07 | 2021-09-28 | 深圳Tcl新技术有限公司 | Split type LED display panel and control method thereof |
| WO2020186492A1 (en) * | 2019-03-21 | 2020-09-24 | 京东方科技集团股份有限公司 | Display panel |
| CN110441936B (en) * | 2019-08-14 | 2022-05-13 | 京东方科技集团股份有限公司 | Filter, filtering device, driving method of filter and preparation method of driving method |
| CN110568692B (en) * | 2019-08-30 | 2020-05-19 | 华中科技大学 | Display device based on phase-change material and quantum dots |
| CN114078451B (en) * | 2020-08-14 | 2023-05-02 | 京东方科技集团股份有限公司 | Display control method and display device |
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