CN101620290B - Color light guide plate and liquid crystal display device - Google Patents
Color light guide plate and liquid crystal display device Download PDFInfo
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- CN101620290B CN101620290B CN200810129395XA CN200810129395A CN101620290B CN 101620290 B CN101620290 B CN 101620290B CN 200810129395X A CN200810129395X A CN 200810129395XA CN 200810129395 A CN200810129395 A CN 200810129395A CN 101620290 B CN101620290 B CN 101620290B
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Abstract
The invention provides a colour light guide plate which is suitable for incident light color separation and comprises a base plate and a color light output structure, wherein, the base plate is provided with a plurality of pixel areas, and the color light output structure is arranged in each pixel area; the color light output structure comprises a first nanometer pattern, a second nanometer pattern and a third nanometer pattern. The incident light is scattered by the first nanometer pattern to form first color light, is scattered by the second nanometer pattern to form second color light and scattered by the third nanometer pattern to form third color light. The color light guide plate can output the consistent first color light, second color light and third color light having high brightness. Besides, a liquid crystal display device with the color light output structure is also provided.
Description
Technical field
The invention relates to a kind of LGP and display device, and particularly relevant for a kind of color light guide plate (Color Light Guide Panel) and liquid crystal indicator (Liquid Crystal Display Device) with coloured light export structure (Color Light Output Structure).
Background technology
Along with the development of photoelectric technology and semiconductor fabrication, (Flat Panel Display, FPD), liquid crystal indicator for example becomes the main flow of display product to flat-type display gradually.Generally speaking.Liquid crystal indicator comprises: module backlight and display panels, wherein, display panels is made up of the liquid crystal layer between thin-film transistor array base-plate, colored optical filtering substrates and the two substrates.
When adopting existing colored optical filtering substrates, each single pixel is to be made up of three subpixels (sub-pixel), and each sub-pixel is by the intensity of passing through light of this sub-pixel of thin film transistor (TFT) control.Light through each sub-pixel is the modulation via the corresponding color filter patterns of each sub-pixel (red, green and blue) again, and then the primary colors of each sub-pixel is mixed into the color that this pixel institute desire shows.Hold above-mentioned because light need pass through colored optical filtering substrates, the problem that will cause brightness to reduce.In addition, the raw materials cost of making colored optical filtering substrates accounts for about 15% of display panels, and needs the considerable processing procedure time of cost.Therefore, begin to develop the liquid crystal indicator that need not to adopt colored optical filtering substrates in the prior art.
In U.S. Pat 6,480, a kind of colour display device is proposed in 247, it need not to adopt colored optical filtering substrates.This U.S. Pat 6; Among Fig. 1 and related description of 480,247, disclose a kind of field sequence type color (Field Sequential Color that deduces; FSC) technology; This technology is switched three kinds of primary lights (redness, green and blue) according to sequential, and arranges in pairs or groups in each color light source demonstration time inter-sync control liquid crystal pixel penetrance, and then the relative light quantity of allocating each primary colors.Afterwards, again by the residual effect of vision system photic stimuli, know this color to form and to examine.That is above-mentioned technology is that script is changed into the time shaft colour mixture with the spatial axes colour mixture, lets R, G, B three primary colors switch fast exactly.If be shorter than the time that human eye vision can be differentiated, the persistence of vision effect by human eye just can produce the colour mixture effect switching time.But the reaction velocity of liquid crystal and look separating controlling are key problem in technology in this technology.Generally speaking, if liquid crystal response speed is fast inadequately, will become the obstacle that adopts look preface law technology.In addition, improve the method that look separates, need complicated control algorithm and powerful driving circuit ability, and be difficult for reaching.
On the other hand,, propose a kind of colorful light-emitting diode backlight module (RGB LED Backlight Module) that utilizes in 454, reach the technology that need not colored optical filtering substrates at United States Patent (USP) 7,164.At United States Patent (USP) 7,164, disclose in Fig. 1 of 454, Fig. 2 and the related content: be utilized in that polarized film 17 (polarization film) go up to be made diffraction grating 15 (diffraction grating) so that incident light by grating diffraction.Then; Because the formed single order diffraction of different wave length angle (first-order diffraction angle) difference; So fit lens structure division 30 (prism structure portion) can converge in the light of different wave length on the diverse location of diffuser plate 18 (diffusion sheet), and then the effect that causes RGB three looks to separate.Yet the alignment precision demand of diffraction grating and pixel is quite high, will cause making difficulty.
Summary of the invention
In view of this, the present invention provides a kind of color light guide plate, has the coloured light export structure that can carry out beam split for incident light, to export the coloured light of unanimity and high brightness.
The present invention provides a kind of liquid crystal indicator, has above-mentioned coloured light export structure, and can export the full-colorization image of high brightness.
Based on above-mentioned, the present invention proposes a kind of color light guide plate, is suitable for an incident light is carried out color separation.This color light guide plate comprises: substrate and coloured light export structure.Substrate has a plurality of pixel regions.The coloured light export structure is arranged in each pixel region, and this coloured light export structure comprises: first nano-pattern, second nano-pattern and the 3rd nano-pattern.Above-mentioned incident light is scattered first coloured light, is scattered second coloured light and scattered the 3rd coloured light by the 3rd nano-pattern by second nano-pattern by first nano-pattern, and the first above-mentioned nano-pattern, second nano-pattern and the 3rd nano-pattern comprise most nano particles respectively; Spacing between these nano particles of first nano-pattern is the multiple of Da or Da, and wherein Da is 650 nanometers ± 30 nanometers, and the color of first coloured light is red; Spacing between these nano particles of second nano-pattern is the multiple of Db or Db, and wherein Db is 550 nanometers ± 30 nanometers, and the color of second coloured light is green; Spacing between these nano particles of the 3rd nano-pattern is the multiple of Dc or Dc, and wherein Dc is 450 nanometers ± 30 nanometers, and the color of the 3rd coloured light is blue.
Based on above-mentioned, the present invention reintroduces a kind of liquid crystal indicator, comprising: module backlight, display panels and coloured light export structure.Module backlight provides an incident light.Display panels is arranged at module backlight top, and this display panels comprises: active elements array substrates, subtend substrate and liquid crystal layer.Subtend substrate subtend is in active elements array substrates.Liquid crystal layer is arranged between active elements array substrates and the subtend substrate.The coloured light export structure is arranged on active elements array substrates or the subtend substrate, and incident light is carried out color separation, and this coloured light export structure comprises: first nano-pattern, second nano-pattern and the 3rd nano-pattern.Above-mentioned incident light is scattered one first coloured light, is scattered one second coloured light and scattered one the 3rd coloured light by the 3rd nano-pattern by second nano-pattern by first nano-pattern, and the first above-mentioned nano-pattern, second nano-pattern and the 3rd nano-pattern comprise most nano particles respectively; Spacing between these nano particles of first nano-pattern is the multiple of Da or Da, and wherein Da is 650 nanometers ± 30 nanometers, and the color of first coloured light is red; Spacing between these nano particles of second nano-pattern is the multiple of Db or Db, and wherein Db is 550 nanometers ± 30 nanometers, and the color of second coloured light is green; Spacing between these nano particles of the 3rd nano-pattern is the multiple of Dc or Dc, and wherein Dc is 450 nanometers ± 30 nanometers, and the color of the 3rd coloured light is blue.
In one embodiment of this invention, the particle diameter of above-mentioned nano particle is between 3 nanometers～250 nanometers.
In one embodiment of this invention; Above-mentioned coloured light export structure more comprises one the 4th nano-pattern; This incident light is scattered one the 4th coloured light by the 4th nano-pattern; And the 4th nano-pattern comprises most nano particles, and the particle diameter of above-mentioned nano particle is between 3 nanometers～250 nanometers.
In one embodiment of this invention, the spacing between these nano particles of the 4th above-mentioned nano-pattern is the multiple of Dd or Dd, and wherein Dd is 600 nanometers ± 30 nanometers, and the color of the 4th coloured light is yellow.
In one embodiment of this invention; The material of above-mentioned nano particle comprises organic material or inorganic material; Wherein, organic material comprises polystyrene (Polystyrene), polymethylmethacrylate (Polymethylemethacrylate) or photopolymer (Photopolymer); Inorganic material comprises metal, alloy, insulation material or semiconductor.
In one embodiment of this invention, the shape of above-mentioned nano particle comprises triangle, polygon or circle.
In one embodiment of this invention, above-mentioned active elements array substrates comprises: substrate, active device array and pixel electrode layer.Substrate has a plurality of pixel regions.Active device array is arranged on the substrate.Pixel electrode layer and active device array electrically connect, and wherein, when the coloured light export structure was arranged on the active elements array substrates, this coloured light export structure was to be arranged on the substrate corresponding to each pixel region or on the pixel electrode layer.
The present invention has the coloured light export structure of first, second, third nano-pattern because of employing, and the coloured light export structure can be arranged on LGP, active elements array substrates or the subtend substrate, so that the incident light color separation is gone out a plurality of coloured light.Therefore, need not to utilize existing colored optical filtering substrates, and can reduce cost of manufacture.In addition, just can take out required primary colors individually by the shape, size, cycle etc. of control nano particle, to reach the display effect of full-colorization.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is the synoptic diagram of a kind of color light guide plate of preferred embodiment of the present invention.
Fig. 2 is the synoptic diagram of a kind of module backlight of preferred embodiment of the present invention.
Fig. 3 is the synoptic diagram of the another kind of module backlight of preferred embodiment of the present invention.
Fig. 4 utilizes different nano particles to scatter the spectrogram of different wave length light respectively.
Fig. 5 is the synoptic diagram of another color light guide plate of preferred embodiment of the present invention.
Fig. 6 A and Fig. 6 B are the synoptic diagram of two kinds of liquid crystal indicators of preferred embodiment of the present invention.
The main element symbol description:
100,102: color light guide plate
110: substrate
112: pixel region
120,120a, 330: coloured light export structure
122: the first nano-patterns
122a, 124a, 126a: nano particle
124: the second nano-patterns
126: the three nano-patterns
128: the four nano-patterns
200,310: module backlight
210: diffusion sheet
220: active elements array substrates
222,224,226: inferior pixel
230: light source
300: liquid crystal indicator
320: display panels
A, B: zone
L: incident light
L1: first coloured light
L2: second coloured light
L3: the 3rd coloured light
Λ
1, Λ
2, Λ
3, Λ
4: spacing
Embodiment
Fig. 1 is the synoptic diagram of a kind of color light guide plate of preferred embodiment of the present invention.Please with reference to Fig. 1, this color light guide plate 100 is suitable for an incident light L is carried out color separation.This color light guide plate 100 comprises substrate 110 and coloured light export structure 120.Substrate 110 has a plurality of pixel regions 112.Coloured light export structure 120 is arranged in each pixel region 112, and this coloured light export structure 120 comprises: first nano-pattern 122, second nano-pattern 124 and the 3rd nano-pattern 126.Incident light L is scattered the first coloured light L1, is scattered the second coloured light L2 and scattered the 3rd coloured light L3 by the 3rd nano-pattern 126 by second nano-pattern 124 by first nano-pattern 122.
Please continue with reference to Fig. 1, the material of substrate 110 can be glass or transparent resin, and wherein, transparent resin for example is to adopt acryl, polymethylmethacrylate (PMMA) etc.It should be noted that owing to first nano-pattern 122, second nano-pattern 124 and the 3rd nano-pattern 126 are in nanoscale and produce special optical characteristics.More detailed; Incident light L will produce high scattering phenomenon and surface plasmon resonance phenomenon (surface plasmon resonance) in first nano-pattern 122, second nano-pattern 124 and the 3rd nano-pattern 126; Thereby can incident light L scattered high brightness and have the first light L1, the second light L2 and the 3rd light L3 of different wave length (being different colours), below will describe in more detail.
Fig. 2 is the synoptic diagram of a kind of module backlight of preferred embodiment of the present invention.In Fig. 2, also draw the diffusion sheet 210 and active elements array substrates 220 that are positioned at module backlight 200 tops, with clear first nano-pattern 122 that presents color light guide plate 100, second nano-pattern 124 and the 3rd nano-pattern 126 respectively with the inferior pixel 222,224 of active elements array substrates 220, the corresponding situation between 226.
Please continue with reference to Fig. 2, module 200 backlight comprises light source 230, and this light source 230 for example is white light-emitting diode array or cold cathode fluorescent lamp pipe, is suitable for sending incident light L.It should be noted that shown in the enlarged drawing of regional A first nano-pattern 122, second nano-pattern 124 and the 3rd nano-pattern 126 comprise most nano particle 122a, 124a, 126a respectively.And the particle diameter of above-mentioned nano particle 122a, 124a, 126a is between 3 nanometers～250 nanometers.In addition; The material of nano particle 122a, 124a, 126a comprises organic material or inorganic material; Wherein, organic material comprises polystyrene (Polystyrene), polymethylmethacrylate (Polymethylemethacrylate) or photopolymer (Photopolymer); Inorganic material comprises metal, alloy, insulation material or semiconductor, and wherein, metal can be a gold or silver-colored.
Wherein, r is that radius, the λ of nano metal ball are incident light wavelength, ε
mDielectric coefficient, ε for air
pDielectric coefficient, ε ' for nano metal ball
pDielectric coefficient ε for nano metal ball
pReal part (real part), ε "
pDielectric coefficient ε for nano metal ball
pImaginary part (imaginary part), ω is 2 π f, and f is a light frequency.
Particularly, the DIELECTRIC CONSTANTS of metal
pBe negative value, and ε
pThe size and shape etc. of value and incident light wavelength and nano metal ball relevant.Under specific wavelength, if the specific inductive capacity of nano metal ball is-2, then the denominator of formula (1) can level off to zero, so the long-pending C of scattering cross-section
ScaValue (ω) can be quite big, and make nano metal ball have quite high scattering power.Compared to hyaloplasmic sphere (its DIELECTRIC CONSTANTS with yardstick
pFor on the occasion of) light scattering ability, above-mentioned nano metal ball exceeds 2 to 3 one magnitude approximately for the scattering of light ability.
That is to say, utilize have nano particle 122a, first nano-pattern 122, second nano-pattern 124 and the 3rd nano-pattern 126 of 124a, 126a can promote the brightness of the first coloured light L1, the second coloured light L2 and the 3rd coloured light L3 that are exported.
In addition, can produce surface plasma sub-resonance phenomenon between nano particle 122a, 124a, 126a and the incident light L, can make only has the optical wavelength that satisfies resonant condition to be scattered out.Fig. 3 is the synoptic diagram of another module backlight of preferred embodiment of the present invention, and similarly structure has been explained in Fig. 2, does not repeat at this.Please jointly with reference to Fig. 2～Fig. 3; More detailed; By the yardstick of suitably controlling nano particle 122a, 124a, 126a, shape, cycle etc., promptly can change the surface plasmon resonance condition, so that only there is the optical wavelength that satisfies resonant condition to be scattered out.Please earlier with reference to Fig. 2, with regard to shape, the shape of nano particle 122a, 124a, 126a can be triangle, polygon, circle or other shapes that is fit to, to scatter ruddiness, green glow and blue light.
Particularly, please with reference to Fig. 3, shown in the enlarged drawing of area B, with regard to the cycle, the spacing Λ between these nano particles 122a of first nano-pattern 122
1Be the multiple of Da or Da, wherein Da is 650 nanometers ± 30 nanometers, and the color of the first coloured light L1 is red; And the spacing Λ between these nano particles 124a of second nano-pattern 124
2Be the multiple of Db or Db, wherein Db is 550 nanometers ± 30 nanometers, and the color of the second coloured light L2 is green; And the spacing Λ between these nano particles 126a of the 3rd nano-pattern 126
3Be the multiple of Dc or Dc, wherein Dc is 450 nanometers ± 30 nanometers, and the color of the 3rd coloured light L3 is blue.
Fig. 4 utilizes different nano particles to scatter the spectrogram of different wave length light respectively for having delivered on the document.Can learn obviously that with reference to Fig. 4 the first coloured light L1 that the nano particle 122a of first nano-pattern 122 scatters is a ruddiness; The second coloured light L2 that the nano particle 124a of second nano-pattern 124 scatters is a green glow; The 3rd coloured light L3 that the nano particle 126a of the 3rd nano-pattern 126 scatters is a blue light.Hold the above, utilize nano particle 122a, 124a, the 126a in difformity, size, cycle can scatter red green blue tricolor respectively.
Fig. 5 is the synoptic diagram of another color light guide plate of preferred embodiment of the present invention, and similarly structure has been explained in Fig. 1, does not repeat at this.In this color light guide plate 102; Utilize identical principle; Can make coloured light export structure 120a also comprise one the 4th nano-pattern 128, this incident light L is scattered one the 4th coloured light L4 by the 4th nano-pattern 128, and the 4th nano-pattern 128 comprises most nano particle 128a; And the particle diameter of above-mentioned nano particle 128a is between 3 nanometers～250 nanometers.Particularly, the spacing Λ between these nano particles 128a of the 4th nano-pattern 128
4Be the multiple of Dd or Dd, wherein Dd is 600 nanometers ± 30 nanometers, and the color of the 4th coloured light L4 is yellow.Certainly, the present invention does not limit the quantity of the nano-pattern 122,124,126,128 that coloured light export structure 120a had, and color combinations.
The method of making above-mentioned coloured light export structure 120,120a very easily.For example, be to utilize the electron beam evaporation plating method on substrate 110, to form metal film (not illustrating) earlier, then, coating photoresist layer (not illustrating) on metal film.Then, utilize the little shadow technology of electronics on the photoresist layer, to make the pattern of different cycles.Afterwards, utilize the reactive ion etching method with the different cycles design transfer on the photoresist layer to metal film, to obtain having coloured light export structure 120, the 120a of nano-pattern 122,124,126,128.
In above-mentioned color light guide plate 100,102; Utilize coloured light export structure 120,120a to export to have the first coloured light L1, the second coloured light L2, the 3rd coloured light L3, the 4th coloured light L4 of high brightness; Therefore, can use in general liquid crystal indicator, to export the image of full-colorization.Thus, just need not to use colored optical filtering substrates, and can reduce the cost of manufacture of liquid crystal indicator.Color light guide plate 100,102 with coloured light export structure 120,120a is except directly applying in the module 200 backlight, and beyond the coloured light that produces full-colorization, coloured light export structure 120,120a also can be arranged in the display panels, explain as follows.
Fig. 6 A and Fig. 6 B are the synoptic diagram of two kinds of liquid crystal indicators of preferred embodiment of the present invention.Please jointly with reference to Fig. 1 and Fig. 6 A, Fig. 6 B, this liquid crystal indicator 300 comprises: module backlight 310, display panels 320 and coloured light export structure 330.Module 310 backlight provides an incident light L.Display panels 320 is arranged at module backlight 310 tops, and this display panels 320 comprises: active elements array substrates 322, subtend substrate 324 and liquid crystal layer 326.Subtend substrate 324 subtends are in active elements array substrates 322.Liquid crystal layer 326 is arranged between active elements array substrates 322 and the subtend substrate 324.Coloured light export structure 330 is arranged on active elements array substrates 322 (shown in Fig. 6 A) or the subtend substrate 324 (shown in Fig. 6 B), and incident light L is carried out color separation.This coloured light export structure 330 can be coloured light export structure 120, the 120a that Fig. 1 or Fig. 5 illustrate, and does not repeat identical content at this.
It should be noted that coloured light export structure 330 can be arranged on the various retes of display panels 320.Above-mentioned active elements array substrates 322 can comprise: substrate (not illustrating), active device array (not illustrating) and pixel electrode layer (not illustrating).Substrate has a plurality of pixel regions (not illustrating).Active device array is arranged on the substrate.Pixel electrode layer and active device array electrically connect, and wherein, when coloured light export structure 330 is arranged at 322 last times of active elements array substrates, this coloured light export structure 330 is to be arranged on the substrate corresponding to each pixel region or on the pixel electrode layer.That is coloured light export structure 330 can be produced on the substrate, also can be produced on the pixel electrode layer.
In addition, shown in Fig. 6 B, coloured light export structure 330 also can be arranged on the subtend substrate 324, so that incident light L color separation goes out the first higher coloured light L1 of brightness, the second coloured light L2 and the 3rd coloured light L3 (and/or the 4th coloured light L4).This except promoting the brightness of coloured light, more can simplify fabrication steps, reduce cost of manufacture for having the colored optical filtering substrates that utilizes the color resin making now.
In sum, color light guide plate of the present invention and liquid crystal indicator have the following advantages at least:
The coloured light export structure that will have nano-pattern is manufactured on LGP, active elements array substrates or the subtend substrate, can the incident light color separation be gone out a plurality of coloured light, and need not to utilize the existing colored optical filtering substrates that utilizes resin to make.Particularly, just can take out required primary colors individually,, can not produce problems such as reaction velocity and look separating controlling compared to the existing field sequence type dye technology that deduces by the shape, size, cycle etc. of control nano particle.
On the other hand; Colored optical filtering substrates compared to transparent grating technology made; The present invention need not use extra microlens array that the light of different angles is separated in the space; Particularly, the formation of the taking-up of photon and rgb pixels in the present invention all is incorporated on the same LGP, does not therefore have extra alignment issues.
Moreover the relative intensity of taking out redgreenblue light can be by different process parameter adjustment, so that each former colour brightness is consistent.The technology and the uncontrollable brightness that have the relative brightness that utilizes the single transparent grating technology to take out three coloured light now make its unanimity.In addition,, can reduce cost of manufacture, and also not have the extra amount of penetrating loss because of colored filter owing to can not need use colored filter.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (19)
1. a color light guide plate is suitable for an incident light is carried out color separation, and this color light guide plate comprises:
One substrate has a plurality of pixel regions;
A shade export structure is arranged in each those pixel region, and this coloured light export structure comprises:
One first nano-pattern, this incident light is scattered one first coloured light by this first nano-pattern;
One second nano-pattern, this incident light is scattered one second coloured light by this second nano-pattern; And
One the 3rd nano-pattern, this incident light is scattered one the 3rd coloured light by the 3rd nano-pattern, and this first nano-pattern, this second nano-pattern and the 3rd nano-pattern comprise most nano particles respectively;
Spacing between those nano particles of this first nano-pattern is the multiple of Da or Da, and wherein Da is 650 nanometers ± 30 nanometers, and the color of this first coloured light is red;
Spacing between those nano particles of this second nano-pattern is the multiple of Db or Db, and wherein Db is 550 nanometers ± 30 nanometers, and the color of this second coloured light is green;
Spacing between those nano particles of the 3rd nano-pattern is the multiple of Dc or Dc, and wherein Dc is 450 nanometers ± 30 nanometers, and the color of the 3rd coloured light is blue.
2. color light guide plate as claimed in claim 1 is characterized in that, the particle diameter of those nano particles is between 3 nanometers～250 nanometers.
3. color light guide plate as claimed in claim 1 is characterized in that, this coloured light export structure more comprises one the 4th nano-pattern, and this incident light is scattered one the 4th coloured light by the 4th nano-pattern, and the 4th nano-pattern comprises most nano particles.
4. color light guide plate as claimed in claim 3 is characterized in that, the particle diameter of those nano particles is between 3 nanometers～250 nanometers.
5. color light guide plate as claimed in claim 3 is characterized in that, the spacing between those nano particles of the 4th nano-pattern is the multiple of Dd or Dd, and wherein Dd is 600 nanometers ± 30 nanometers, and the color of the 4th coloured light is yellow.
6. color light guide plate as claimed in claim 1 is characterized in that the material of those nano particles comprises organic material or inorganic material.
7. color light guide plate as claimed in claim 6 is characterized in that this organic material comprises polystyrene, polymethylmethacrylate or photopolymer.
8. color light guide plate as claimed in claim 6 is characterized in that, this inorganic material comprises metal, alloy, insulation material or semiconductor.
9. color light guide plate as claimed in claim 1 is characterized in that the shape of those nano particles comprises triangle, polygon or circle.
10. liquid crystal indicator comprises:
One module backlight provides an incident light;
One display panels is arranged at this module backlight top, and this display panels comprises:
One active elements array substrates;
One subtend substrate, subtend is in this active elements array substrates; And
One liquid crystal layer is arranged between this active elements array substrates and this subtend substrate;
A shade export structure is arranged on this active elements array substrates or this subtend substrate, and this incident light is carried out color separation, and this coloured light export structure comprises:
One first nano-pattern, this incident light is scattered one first coloured light by this first nano-pattern;
One second nano-pattern, this incident light is scattered one second coloured light by this second nano-pattern; And
One the 3rd nano-pattern, this incident light is scattered one the 3rd coloured light by the 3rd nano-pattern,
This first nano-pattern, this second nano-pattern and the 3rd nano-pattern comprise most nano particles respectively;
Spacing between those nano particles of this first nano-pattern is the multiple of Da or Da, and wherein Da is 650 nanometers ± 30 nanometers, and the color of this first coloured light is red;
Spacing between those nano particles of this second nano-pattern is the multiple of Db or Db, and wherein Db is 550 nanometers ± 30 nanometers, and the color of this second coloured light is green;
Spacing between those nano particles of the 3rd nano-pattern is the multiple of Dc or Dc, and wherein Dc is 450 nanometers ± 30 nanometers, and the color of the 3rd coloured light is blue.
11. liquid crystal indicator as claimed in claim 10 is characterized in that, the particle diameter of those nano particles is between 3 nanometers～250 nanometers.
12. liquid crystal indicator as claimed in claim 10 is characterized in that, this coloured light export structure more comprises one the 4th nano-pattern, and this incident light is scattered one the 4th coloured light by the 4th nano-pattern, and wherein the 4th nano-pattern comprises most nano particles.
13. liquid crystal indicator as claimed in claim 12 is characterized in that, the particle diameter of those nano particles is between 3 nanometers～250 nanometers.
14. liquid crystal indicator as claimed in claim 13 is characterized in that, the spacing between those nano particles of the 4th nano-pattern is the multiple of Dd or Dd, and wherein Dd is 600 nanometers ± 30 nanometers, and the color of the 4th coloured light is yellow.
15. liquid crystal indicator as claimed in claim 10 is characterized in that, the material of those nano particles comprises organic material or inorganic material.
16. liquid crystal indicator as claimed in claim 15 is characterized in that, this organic material comprises polystyrene, polymethylmethacrylate or photopolymer.
17. liquid crystal indicator as claimed in claim 15 is characterized in that, this inorganic material comprises metal, alloy, insulation material or semiconductor.
18. liquid crystal indicator as claimed in claim 10 is characterized in that, the shape of those nano particles comprises triangle, polygon or circle.
19. liquid crystal indicator as claimed in claim 10 is characterized in that, this active elements array substrates comprises:
One substrate has a plurality of pixel regions;
One active device array is arranged on this substrate; And
One pixel electrode layer electrically connects with this active device array;
Wherein, when this coloured light export structure was arranged on this active elements array substrates, this coloured light export structure was to be arranged on this substrate corresponding to each those pixel region or on this pixel electrode layer.
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| CN200810129395XA CN101620290B (en) | 2008-06-30 | 2008-06-30 | Color light guide plate and liquid crystal display device |
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| CN200810129395XA CN101620290B (en) | 2008-06-30 | 2008-06-30 | Color light guide plate and liquid crystal display device |
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| CN101620290B true CN101620290B (en) | 2012-03-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10233539B2 (en) | 2014-04-30 | 2019-03-19 | Boe Technology Group Co., Ltd. | Vapor deposition apparatus |
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| CN107402473B (en) | 2017-09-25 | 2020-11-06 | 京东方科技集团股份有限公司 | Display module and display device |
| CN108845454B (en) * | 2018-06-25 | 2020-11-03 | 福州大学 | Backlight illumination structure based on double-sided dimming light guide plate and manufacturing method thereof |
| CN109031775A (en) * | 2018-07-05 | 2018-12-18 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN111123584B (en) * | 2020-01-10 | 2022-05-24 | 京东方科技集团股份有限公司 | Backlight unit, display screen and display device |
| CN117642685A (en) * | 2021-12-30 | 2024-03-01 | 华为技术有限公司 | Backlight display assembly and electronic equipment |
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| CN101620290A (en) | 2010-01-06 |
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