CN103353688B - The manufacture method of color membrane substrates, display device and color membrane substrates - Google Patents
The manufacture method of color membrane substrates, display device and color membrane substrates Download PDFInfo
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- CN103353688B CN103353688B CN201310247471.8A CN201310247471A CN103353688B CN 103353688 B CN103353688 B CN 103353688B CN 201310247471 A CN201310247471 A CN 201310247471A CN 103353688 B CN103353688 B CN 103353688B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
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Abstract
The present invention relates to Display Technique field, disclose a kind of color membrane substrates, display device and the manufacture method of a kind of color membrane substrates, described color membrane substrates includes: underlay substrate；It is positioned at the black matrix of described underlay substrate one side；It is positioned at 1/4th phase contrast diaphragms of described underlay substrate another side；Being positioned at described 1/4th phase contrast diaphragms and deviate from the color film of described underlay substrate one side, described color film has different colours regional transmission, and each color transmission region passes through the circularly polarized light of respective color and can reflect the circularly polarized light of remaining color.Use technical scheme, reduce the light loss by color membrane substrates, substantially increase the light utilization efficiency of backlight.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of color membrane substrates, display device and a kind of coloured silk
The manufacture method of film substrate.
Background technology
In panel display apparatus, Thin Film Transistor-LCD (Thin Film Transistor Liquid
Crystal Display, is called for short TFT-LCD) have that volume is little, low in energy consumption, manufacturing cost is relatively low and
The feature such as radiationless, occupies leading position in current flat panel display market.
At present, as it is shown in figure 1, the TFT-LCD structural representation of prior art, TFT-LCD's is main
Structure includes backlight 1 and liquid crystal module, and liquid crystal module mainly includes box array base palte 3 He together
Color membrane substrates, and the liquid crystal layer 4 between array base palte 3 and color membrane substrates, wherein, color membrane substrates
Specifically include that glass substrate 7, black matrix" 5(Black Matrix, be called for short BM) and chromatic photoresist 6.
The light path of TFT-LCD is as follows: the natural light that backlight 1 is launched enters polarizer slice 2, forms line polarized light,
Line polarized light again through liquid crystal module, the line polarized light made due to the torsion of liquid crystal molecule in liquid crystal layer 4
Change of polarized direction 90 degree, then through checking bias slice 8 emergent ray polarized light, black matrix" 5 in color membrane substrates
Main Function be to block veiling glare, prevent light leak between each sub-pix；The Main Function of chromatic photoresist 6 is profit
Producing RGB (RGB) three primary colors by the mode filtered, each primary colors forms a sub-pix, then by red
Turquoise three primary colors is with different strong and weak ratio mixing, thus presents various color, makes TFT-LCD show
Go out full-color.
Liquid crystal can be divided into nematic liquid crystal, smectic liquid crystal and cholesteric phase according to the difference of molecules align kind
Liquid crystal etc..Wherein, cholesteric liquid crystal is the liquid crystal material that a class is important, and it has helical structure, Ke Yixuan
The reflection light of selecting property.The ripple width Δ λ of reflection light represents, Δ λ=Δ nPcos θ, Δ n=n∥-n⊥, wherein, n∥
And n⊥Respectively being parallel and perpendicular to the refractive index in incident illumination direction, θ represents between incident direction and helical axis
Angle, P represents pitch；Beyond reflection band, cholesteric liquid crystal will not be to the amplitude of light wave and polarization
State produces impact.It is said that in general, the Δ n value of colourless organic compound is between 0.3～0.4, therefore,
The echo wide Δ λ of cholesteric liquid crystal, within visible region is limited in tens nanometers, therefore, passes through
The pitch P adjusting cholesteric liquid crystal can realize wide wave reflection.
Existing color membrane substrates forms emergent light by the way of optical filtering, causes more light loss so that the back of the body
The light utilization efficiency of light source is relatively low.
Summary of the invention
It is an object of the invention to provide a kind of color membrane substrates, display device and the manufacturer of a kind of color membrane substrates
Method, in order to reduce the light loss by color membrane substrates, improves the light utilization efficiency of backlight.
Color membrane substrates of the present invention, for display floater, described display floater has multiple pixel, each picture
Having the sub-pixel unit that multiple color is different in element, described color membrane substrates includes:
Underlay substrate；
It is positioned at the black matrix of described underlay substrate one side；
It is positioned at 1/4th phase contrast diaphragms of described underlay substrate another side；
It is positioned at described 1/4th phase contrast diaphragms and deviates from the color film of described underlay substrate one side, described color film
There is different colours regional transmission, each color transmission region through respective color circularly polarized light and can
Reflect the circularly polarized light of remaining color.
Display device of the present invention, including the color membrane substrates described in preceding solution.
Preferably, described color membrane substrates, also include being positioned at described underlay substrate and 1/4th phase retardation films
Checking bias slice between sheet.
It is also preferred that the left the angle of the light transmission shaft of the slow axis of described 1/4th phase contrast diaphragms and described checking bias slice
It it is 45 °.
Preferably, described color film includes that two-layer cholesteryl liquid crystal film, each layer of cholesteryl liquid crystal film include even
The bar-shaped zone reflecting red green blue tricolor circularly polarized light respectively of continuous arrangement, the width of described bar-shaped zone
For sub-pix width, the bar-shaped zone that described two-layer cholesteryl liquid crystal film location is corresponding reflects different primary colors
Circularly polarized light.
It is also preferred that the left described cholesteryl liquid crystal film is mainly by 4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's first
Base hydroquinone diester and 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl-1,2-ethylene glycol diester obtain
Arrive.
It is also preferred that the left described color film also includes the transparent base carrying color membrane body.
Display device of the present invention, including the color membrane substrates described in any of the above-described kind.
The manufacture method of color membrane substrates of the present invention, including:
Black matrix is formed in underlay substrate one side；
/ 4th phase contrast diaphragms are attached at underlay substrate another side；
The color film with different colours regional transmission is attached on 1/4th phase contrast diaphragms.
Preferably, described attaching before 1/4th phase contrast diaphragms at underlay substrate another side also includes:
Checking bias slice is attached at underlay substrate another side.
It is also preferred that the left arrange the slow axis of described 1/4th phase contrast diaphragms and the light transmission shaft of described checking bias slice
Angle is 45 °.
Preferably, described attaching on 1/4th phase contrast diaphragms has different colours regional transmission
Color film particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The ground floor cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
On ground floor cholesteryl liquid crystal film according to sub-pix width coat weight than respectively 91.0:9.0,
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 93.7:6.3 and
The mixed solution of 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, through ultraviolet
The second layer cholesterol reflecting turquoise red three primary colors circularly polarized light respectively of arrangement continuously is formed after illumination curing
Liquid crystal film；
Attach on 1/4th phase contrast diaphragms and there is ground floor cholesteryl liquid crystal film and second layer cholesteric
The transparent base of alcohol liquid crystal film.
Preferably, described attaching on 1/4th phase contrast diaphragms has different colours regional transmission
Color film particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
The sub-pix width that staggered by the transparent base that two have cholesteryl liquid crystal film attaches, shape
Become the color film of para-position；
The color film of described para-position is attached on 1/4th phase contrast diaphragms.
In technical solution of the present invention, owing to adding in color membrane substrates, line polarized light is changed into circular polarization
In 1/4th phase contrast diaphragms of light, and color film, each color transmission region can pass through respective color
Circularly polarized light and the circularly polarized light of remaining color can be reflected, therefore, according to light path principle of reversibility, reflection
Circularly polarized light can be with entry of backlight source, then after the scattering of diffusion barrier in backlight and the reflection of reflectance coating
It is re-used, therefore, reduces the light loss by color membrane substrates, substantially increase the light of backlight
Utilization rate.
Accompanying drawing explanation
Fig. 1 is the TFT-LCD structural representation of prior art；
Fig. 2 is the display panel structure schematic diagram including one embodiment of the invention color membrane substrates；
Fig. 3 is one embodiment of the invention display floater index path；
Fig. 4 is the display panel structure schematic diagram including another embodiment of the present invention color membrane substrates；
Fig. 5 is coloured silk membrane structure schematic diagram of the present invention；
Fig. 6 is the manufacture method embodiment schematic flow sheet of color membrane substrates of the present invention.
Reference:
1-backlight 2-polarizer slice 3-array base palte 4-liquid crystal layer 5-black matrix
6-chromatic photoresist 7-glass substrate 8-checking bias slice 11-backlight 12-polarizer slice
13-array base palte 14-liquid crystal layer 15-black matrix 16-underlay substrate 17-checking bias slice
18-1/4th phase contrast diaphragm 19-coloured silk film 21-reflectance coating 22-diffusion barrier
Detailed description of the invention
In order to reduce the light loss by color membrane substrates, improve the light utilization efficiency of backlight, the embodiment of the present invention
Provide a kind of color membrane substrates, display device and the manufacture method of a kind of color membrane substrates.In this technical scheme,
Owing to adding 1/4th phase retardation films that line polarized light is changed into circularly polarized light in color membrane substrates
In sheet, and color film, each color transmission region can pass through the circularly polarized light of respective color and can reflect it
The circularly polarized light of remaining color, therefore, according to light path principle of reversibility, the circularly polarized light of reflection can enter the back of the body
Light source, then be re-used after the scattering of diffusion barrier in backlight and the reflection of reflectance coating, therefore, fall
The low light loss by color membrane substrates, substantially increases the light utilization efficiency of backlight.For making the present invention's
Purpose, technical scheme and advantage are clearer, are exemplified below specific embodiment and make the present invention the most in detail
Describe in detail bright.
Display floater includes color membrane substrates and array base palte, and color membrane substrates includes black matrix and has RGB
Trichromatic chromatic photoresist, display floater has multiple pixel, has multiple color not in each pixel
Same sub-pixel unit, black matrix has the most multiple openings with the sub-pixel unit of display floater
Region, chromatic photoresist is filled in the open area of black matrix, in the inventive solutions, black matrix and
Existing black matrix is consistent.
As in figure 2 it is shown, the structural representation of display floater of the present invention, an enforcement of color membrane substrates of the present invention
Example, described color membrane substrates includes:
Underlay substrate 16；
It is positioned at the black matrix 15 of underlay substrate 16 one side；
It is positioned at 1/4th phase contrast diaphragms 18 of underlay substrate 16 another side；
Being positioned at the color film 19 of 1/4th phase contrast diaphragm 18 away from substrate substrate 16 one sides, color film 19 has
Have different colours regional transmission, each color transmission region through respective color circularly polarized light and can be anti-
Penetrate the circularly polarized light of remaining color.
In embodiments of the present invention, as in figure 2 it is shown, line polarized light is turned owing to adding in color membrane substrates
Become each color transmission region in 1/4th phase contrast diaphragms 18 of circularly polarized light, and color film 19
Can pass through the circularly polarized light of respective color and the circularly polarized light of remaining color can be reflected, therefore, according to light path
Principle of reversibility, the circularly polarized light of reflection can be with entry of backlight source 11, then the scattering of diffusion barrier in backlight
It is re-used with after the reflection of reflectance coating, therefore, reduces the light loss by color membrane substrates, significantly
Improve the light utilization efficiency of backlight.In technical solution of the present invention, color film can be in cholesteric liquid crystal
Cholesteryl liquid crystal formed thin film, cholesteryl liquid crystal film has the effect of reflection circle polarized light；Black matrix
The material of 15 may select the photosensitive type resin comprising carbon black materials, and the material of underlay substrate 16 may select transparent
Glass, transparent resin etc..Existing there is chromatic photoresist color membrane substrates to the utilization rate of light source be
About 30%, and use the color membrane substrates of this invention that light source utilization rate can be reached 50%～about 60%.
Explaining that color membrane substrates of the present invention can improve the principle of backlight utilization rate in conjunction with Fig. 3, Fig. 3 is this
A bright embodiment display floater index path, as a example by the trichromatic color film of red green, as it is shown on figure 3, backlight
The natural light sent in source becomes line polarized light through polarizer slice 12, and this line polarized light is through array base palte 13
Change 90 degree with liquid crystal layer 14 rear polarizer direction, blocked part light through black matrix 15, then passed through
Underlay substrate 16 and 1/4th phase contrast diaphragms 18 become circularly polarized light, and color film 19 can be with TEM investigation
The circularly polarized light of sub-pix, and the light of other color can be reflected, as red sub-pixel (R) can pass through
Red circularly polarized light, reflection green circularly polarized light and blue circularly polarized light, the green circular polarization reflected back
Light and blue circularly polarized light again pass by liquid crystal cell entry of backlight source, by the reflectance coating 21 reflection to light,
Enter back into diffusion barrier 22, be utilized through liquid crystal cell again, this improves the utilization rate of light.
As shown in Figure 4, including the display panel structure schematic diagram of another kind color membrane substrates of the present invention, the present invention
The color membrane substrates of another embodiment, also include being positioned at underlay substrate 16 and 1/4th phase contrast diaphragms 18 it
Between checking bias slice 17.
In embodiments of the present invention, between underlay substrate 16 and 1/4th phase contrast diaphragms 18, increase by one
Individual checking bias slice 17, can be converted to be perpendicular to 1/4th phases by the line polarized light of the outgoing from liquid crystal layer 14
The line polarized light of the normal direction of potential difference diaphragm 18, line polarized light is changed by beneficially 1/4th phase contrast diaphragms 18
For circularly polarized light, and then it is beneficial to color film 19 circularly polarized light is carried out transmission and reflection, improve the light of backlight
Utilization rate.
It is also preferred that the left the angle of the slow axis of 1/4th phase contrast diaphragms 18 and the light transmission shaft of checking bias slice 17 is
45°。
In embodiments of the present invention, after light transmission checking bias slice 17, become line polarized light, 1/4th phase contrasts
When the angle of the light transmission shaft of diaphragm 18 and checking bias slice 17 is 45 °, the light that can will transmit through checking bias slice 17 all turns
Turn to circularly polarized light, be thus beneficial to the color film reflection to circularly polarized light, improve the profit of backlight further
By rate, when the angle of 1/4th phase contrast diaphragms 18 with the light transmission shaft of checking bias slice 17 is not 45 °, four
/ mono-phase contrast diaphragm 18 will transmit through the line polarized light of checking bias slice 17 and is converted into elliptically polarized light, oval inclined
The light that shakes is equivalent to the superposition of line polarized light and circularly polarized light, and therefore, color film can only be by elliptically polarized light
Circularly polarized light reflects, and at this moment, the utilization ratio of backlight decreases.
For preferred embodiment, it is that quarter-wave plate comes furtherly with 1/4th phase contrast diaphragms
The principle that Mingguang City is efficiently utilized:
Light polarization state after checking bias slice 17 outgoing is perpendicular linear polarization light,
Through quarter-wave plate Effect, perpendicular linear polarization light becomes right-circularly polarized light
Through color film 19, as a example by the region through red right-circularly polarized light, can in this region of color film
With transmission redness right-circularly polarized light, reflection green blueness right-circularly polarized light, right-hand circular polarization after reflection
Light becomes left circularly polarized light
Again through quarter-wave plate Left circularly polarized light becomes perpendicular linear polarization light
By path reversal principal, light returns the diffusion barrier 22 of backlight through liquid crystal cell, then through reflection
The reflection of film 21 and be used again.
Preferably, as it is shown in figure 5, color film 19 includes two-layer cholesteryl liquid crystal film, each layer of cholesterol liquid
Epitaxial includes the bar-shaped zone of the red green blue tricolor circularly polarized light reflection of reflection respectively arranged continuously, described
The width of bar-shaped zone is sub-pix width, the bar-shaped zone that described two-layer cholesteryl liquid crystal film location is corresponding
The circularly polarized light of the different primary colors of reflection.
In embodiments of the present invention, as it is shown in figure 5, color film 19 includes two-layer cholesteryl liquid crystal film, due to
The existence of cholesteryl liquid crystal helical structure, can realize selective reflecting light by the pitch of adjustable liquid crystal display,
As it is shown in figure 5,R、G、BRepresent that red circularly polarized light, green can be reflected in this subpixel regions respectively
Circularly polarized light and blue circularly polarized light, therefore,GWithBCompound cholesteryl liquid crystal film can be with reflection green circle
Polarized light and blue circularly polarized light, and transmit red circularly polarized light, in like manner,BWithRCompound cholesterol
Liquid crystal film with reflection blue circularly polarized light and red circularly polarized light, and can transmit green circularly polarized light,RWithGCompound cholesteryl liquid crystal film can reflect red circularly polarized light and green circularly polarized light, and transmits indigo plant
Color circularly polarized light, therefore, uses such two-layer cholesteryl liquid crystal film can realize the effect of color film, due to
It has the effect of reflection light, and the light reflected back is reflected the effect of film and is utilized again, therefore,
Substantially increase the light utilization efficiency of backlight.
Preferably, described cholesteryl liquid crystal film is mainly by 4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's first
Base hydroquinone diester and 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl-1,2-ethylene glycol diester obtain
Arrive.
In embodiments of the present invention, 4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone two
Ester is referred to as C6M, as photo polymerization monomer, 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl
-1，2-ethandiol diester is referred to as ZLI-4572, purchased from Merck & Co., Inc., for a kind of right-handed chirality molecule, leads to
Overregulate the cholesteryl liquid crystal film that the weight ratio of both is formed, it is possible to achieve the light of different wave length is carried out
Reflection, the cholesteryl liquid crystal film as formed when the weight ratio of C6M and ZLI-4572 is 93.7:6.3 can be anti-
Penetrate λ HONGGUANG near 756nm, the gallbladder formed when the weight ratio of C6M and ZLI-4572 is 91.0:9.0
Sterol liquid crystal film can reflect λ green glow near 550nm, and the weight ratio of C6M and ZLI-4572 is
The cholesteryl liquid crystal film formed during 87.8:12.2 can reflect λ blue light near 400nm.This cholesterol liquid
Epitaxial also includes the light initiator that mass fraction is 5%, and light initiator has multiple, and such as light initiator is
2,2-dimethoxy-2-phenyl acetophenone.
It is also preferred that the left described color film 19 also includes the transparent base carrying color membrane body.
In embodiments of the present invention, color film is the thinnest, needs to make over the transparent substrate to be easily installed in coloured silk
On film substrate, the material of this kind of transparent base can be that acrylic material, Triafol T etc. can be used
In the transparent material attaching film.
The embodiment of the present invention provides a kind of display device, including any one above-mentioned color membrane substrates, due to upper
The color membrane substrates stated can also reflect light with transmission light, the light reflected back reflectance coating in backlight
It is utilized the most again, this improves the light utilization efficiency of backlight.
The type of display device does not limits, such as, can be TN(Twisted Nematic, twisted-nematic) mould
Formula, VA(Vertical Alignment, vertical orientated) pattern, IPS(In-Plane-Switching, plane
Direction is changed) pattern and FFS(Fringe Field Switching, fringe field switching) pattern etc..The present invention
Display device can also be OGS(One Glass Solution, integration touch-control) display device, it is possible to relatively
The good demand meeting intelligent terminal's ultrathin, and promote display effect further.Wherein, IPS pattern and
FFS mode arranges the light transmission shaft of checking bias slice and is generally 90 °, and TN pattern arranges the light transmission shaft of checking bias slice and is
135 °, in preferably embodiment, the slow axis of 1/4th phase contrast diaphragms and the saturating of checking bias slice are set
The angle of optical axis is 45 °.
Described display device is specifically as follows: liquid crystal panel, Electronic Paper, oled panel, liquid crystal electricity
Depending on, liquid crystal display, DPF, mobile phone, panel computer etc. there is the product of any display function
Or parts.
As shown in Figure 6, the embodiment of the present invention also provides for the manufacture method of a kind of color membrane substrates, including:
Step 101, underlay substrate one side formed black matrix；
Step 102, underlay substrate another side attach 1/4th phase contrast diaphragms；
Step 103, attaching color film on 1/4th phase contrast diaphragms, described color film has different colours
Regional transmission, the circularly polarized light of each color transmission region transmission respective color also can reflect remaining color
Circularly polarized light.
In the manufacture method of color membrane substrates of the present invention, it is preferred that described in the attaching of underlay substrate another side
Also include before 1/4th phase contrast diaphragms:
Checking bias slice is attached at underlay substrate another side.
It is also preferred that the left arrange the slow axis of described 1/4th phase contrast diaphragms and the light transmission shaft of described checking bias slice
Angle is 45 °.
In embodiments of the present invention, when making color membrane substrates, the light transmission shaft and 1/4th of checking bias slice is set
The angle of the slow axis of phase contrast diaphragm is 45 °, at this moment can will transmit through checking bias slice line polarized light and be completely converted into
Circularly polarized light, further increases the utilization ratio of backlight.
In the manufacture method of color membrane substrates of the present invention, described attaching on 1/4th phase contrast diaphragms
There is a kind of scheme of the color film of different colours regional transmission particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The ground floor cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
On ground floor cholesteryl liquid crystal film according to sub-pix width coat weight than respectively 91.0:9.0,
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 93.7:6.3 and
The mixed solution of 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, through ultraviolet
The second layer cholesterol reflecting turquoise red three primary colors circularly polarized light respectively of arrangement continuously is formed after illumination curing
Liquid crystal film；
Attach on 1/4th phase contrast diaphragms and there is ground floor cholesteryl liquid crystal film and second layer cholesteric
The transparent base of alcohol liquid crystal film.
In the manufacture method of color membrane substrates of the present invention, described attaching on 1/4th phase contrast diaphragms
There is the another kind of scheme of the color film of different colours regional transmission particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
The sub-pix width that staggered by the transparent base that two have cholesteryl liquid crystal film attaches, shape
Become the color film of para-position；
The color film of described para-position is attached on 1/4th phase contrast diaphragms.
In embodiments of the present invention, the material of transparent base can select Triafol T, oriented layer
Material can select polyimides, can increase light initiator in mixed solution, for example, it is possible to select matter
Amount mark is that the 2,2-dimethoxy-2-phenyl acetophenone of 5% is as light initiator.
In the above embodiment of the present invention, it is provided that the manufacture of color membrane substrates, display device and color membrane substrates
Method, due to the improvement to color membrane substrates coloured silk membrane process, color film uses not only has transmission effect but also have anti-
The material penetrating effect is made, and the preferred embodiment of the present invention provides the color film of cholesteryl liquid crystal film preparation,
Therefore, use such color film that the backlight utilization rate of the present invention is enhanced, existing
The color membrane substrates with chromatic photoresist is about 30% to the utilization rate of light source, and uses the color film of this invention
Substrate can reach 50%～about 60% to light source utilization rate.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
The spirit and scope of invention.So, if these amendments of the present invention and modification belong to the claims in the present invention
And within the scope of equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a color membrane substrates, it is characterised in that for display floater, described display floater has many
Individual pixel, has the sub-pixel unit that multiple color is different in each pixel, described color membrane substrates includes:
Underlay substrate；
It is positioned at the black matrix of described underlay substrate one side；
It is positioned at 1/4th phase contrast diaphragms of described underlay substrate another side；
It is positioned at described 1/4th phase contrast diaphragms and deviates from the color film of described underlay substrate one side, described color film
There is different colours regional transmission, each color transmission region through respective color circularly polarized light and can
Reflect the circularly polarized light of remaining color；
Also include the checking bias slice being positioned between described underlay substrate and 1/4th phase contrast diaphragms；
Described color film includes two-layer cholesteryl liquid crystal film, and each layer of cholesteryl liquid crystal film includes arranging continuously
Reflecting the bar-shaped zone of red green blue tricolor circularly polarized light respectively, the width of described bar-shaped zone is sub-pix
Width, the circular polarization of the different primary colors of bar-shaped zone reflection that described two-layer cholesteryl liquid crystal film location is corresponding
Light.
2. color membrane substrates as claimed in claim 1, it is characterised in that described 1/4th phase retardation films
The slow axis of sheet is 45 ° with the angle of the light transmission shaft of described checking bias slice.
3. color membrane substrates as claimed in claim 1, it is characterised in that described cholesteryl liquid crystal film is main
By 4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester and 4-(4-pentylcyclohexane
Base)-benzoic acid-(1R)-1-phenyl-1,2-ethylene glycol diester obtains.
4. color membrane substrates as claimed in claim 1, it is characterised in that described color film also includes carrying coloured silk
The transparent base of membrane body.
5. a display device, it is characterised in that include the color film as described in any one of Claims 1 to 4
Substrate.
6. the manufacture method of a color membrane substrates, it is characterised in that including:
Black matrix is formed in underlay substrate one side；
/ 4th phase contrast diaphragms are attached at underlay substrate another side；
Attaching color film on 1/4th phase contrast diaphragms, described color film has different colours transmission area
Territory, each color transmission region is through the circularly polarized light of respective color and can to reflect the circle of remaining color inclined
Shake light；
Described color film includes two-layer cholesteryl liquid crystal film, and each layer of cholesteryl liquid crystal film includes arranging continuously
Reflecting the bar-shaped zone of red green blue tricolor circularly polarized light respectively, the width of described bar-shaped zone is sub-pix
Width, the circular polarization of the different primary colors of bar-shaped zone reflection that described two-layer cholesteryl liquid crystal film location is corresponding
Light.
7. manufacture method as claimed in claim 6, it is characterised in that described at underlay substrate another side
Also include before attaching 1/4th phase contrast diaphragms:
Checking bias slice is attached at underlay substrate another side.
8. manufacture method as claimed in claim 7, it is characterised in that described 1/4th phase places are set
The slow axis of difference diaphragm is 45 ° with the angle of the light transmission shaft of described checking bias slice.
9. the manufacture method as according to any one of claim 6～8, it is characterised in that described at four points
One of attach on phase contrast diaphragm have different colours regional transmission color film particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The ground floor cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
On ground floor cholesteryl liquid crystal film according to sub-pix width coat weight than respectively 91.0:9.0,
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 93.7:6.3 and
The mixed solution of 4-(4-pentylcyclohexane base)-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, through ultraviolet
The second layer cholesterol reflecting turquoise red three primary colors circularly polarized light respectively of arrangement continuously is formed after illumination curing
Liquid crystal film；
Attach on 1/4th phase contrast diaphragms and there is ground floor cholesteryl liquid crystal film and second layer cholesteric
The transparent base of alcohol liquid crystal film.
10. the manufacture method as according to any one of claim 6～8, it is characterised in that described at four points
One of attach on phase contrast diaphragm have different colours regional transmission color film particularly as follows:
Coat oriented layer over the transparent substrate；
In oriented layer according to sub-pix width coat weight than respectively 93.7:6.3,91.0:9.0 and
4-(6-(acryloxy) hexyloxy) benzoic acid neighbour's methyl hydroquinone diester of 87.8:12.2 and 4-(4-amyl group
Cyclohexyl) mixed solution of-benzoic acid-(1R)-1-phenyl-1，2-ethandiol diester, solidify through ultraviolet lighting
The cholesteryl liquid crystal film reflecting red green blue tricolor circularly polarized light respectively that rear formation is arranged continuously；
The sub-pix width that staggered by the transparent base that two have cholesteryl liquid crystal film attaches, shape
Become the color film of para-position；
The color film of described para-position is attached on 1/4th phase contrast diaphragms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310247471.8A CN103353688B (en) | 2013-06-20 | 2013-06-20 | The manufacture method of color membrane substrates, display device and color membrane substrates |
| PCT/CN2013/081169 WO2014201758A1 (en) | 2013-06-20 | 2013-08-09 | Colour film substrate, display device and manufacturing method for colour film substrate |
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| CN201310247471.8A CN103353688B (en) | 2013-06-20 | 2013-06-20 | The manufacture method of color membrane substrates, display device and color membrane substrates |
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| CN1479141A (en) * | 2002-07-10 | 2004-03-03 | Lg.菲利浦Lcd株式会社 | Liquid crytal display device using cholesteroid type liquid crystal |
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| TWI262338B (en) * | 2000-06-26 | 2006-09-21 | Reveo Inc | Cholesteric liquid crystal polarizing device, reflective liquid crystal display and method for fabricating the same |
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| KR100348993B1 (en) * | 2000-03-09 | 2002-08-17 | 엘지.필립스 엘시디 주식회사 | liquid crystal display device |
| KR100790353B1 (en) * | 2001-05-11 | 2008-01-02 | 엘지.필립스 엘시디 주식회사 | Reflective liquid crystal display device and manufacturing method thereof |
| US7342623B2 (en) * | 2002-10-04 | 2008-03-11 | Dai Nippon Printing Co., Ltd. | Optical element and liquid crystal display device using the same |
| CN101148591B (en) * | 2007-10-16 | 2011-05-04 | 北京科技大学 | Method for preparing liquid crystal thin film material with controllable reflection bandwidth |
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| TWI262338B (en) * | 2000-06-26 | 2006-09-21 | Reveo Inc | Cholesteric liquid crystal polarizing device, reflective liquid crystal display and method for fabricating the same |
| CN1479141A (en) * | 2002-07-10 | 2004-03-03 | Lg.菲利浦Lcd株式会社 | Liquid crytal display device using cholesteroid type liquid crystal |
| CN1648752A (en) * | 2004-07-09 | 2005-08-03 | 友达光电股份有限公司 | Liquid crystal display unit color filter sheet integrated transistor structure |
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