CN109143660A - Production method, color membrane substrates and the liquid crystal display of color membrane substrates - Google Patents

Production method, color membrane substrates and the liquid crystal display of color membrane substrates Download PDF

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Publication number
CN109143660A
CN109143660A CN201810757589.8A CN201810757589A CN109143660A CN 109143660 A CN109143660 A CN 109143660A CN 201810757589 A CN201810757589 A CN 201810757589A CN 109143660 A CN109143660 A CN 109143660A
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state
box
liquid crystal
membrane substrates
color membrane
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CN109143660B (en
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李林
吴振忠
辛杰萍
任保涛
柳发霖
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Truly Semiconductors Ltd
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Truly Semiconductors Ltd
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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
    • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
    • 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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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention discloses a kind of production methods of color membrane substrates, comprising: step 1: establishing OFF state outgoing spectrum-box thickness correlation model；Step 2: calculating when respectively reaching required R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance, corresponding first box is thick, the second box is thick and third box is thick；Step 3: the one side of color membrane substrates needed for making, required color membrane substrates towards liquid crystal layer has different height so that required liquid crystal display Zone R domain have the first box it is thick, the region G have the second box it is thick and in B area with third box thickness.The production method, which can control required liquid crystal display, all while having required OFF state exitance on red spectral band, blue wave band and green light band, can improve the OFF state effect of liquid crystal display, achieve the purpose that high contrast, high NTSC, low colour cast.The present invention also provides a kind of color membrane substrates and liquid crystal displays.

Description

Production method, color membrane substrates and the liquid crystal display of color membrane substrates
Technical field
The present invention relates to display technology more particularly to a kind of production methods of color membrane substrates, color membrane substrates and liquid crystal display Device.
Background technique
Currently, the OFF state exitance of liquid crystal display can only be a certain due to the chromatic dispersion problem of liquid crystal molecule, polaroid etc. Reach an extreme value in wave band.
By taking the reflection LCD of normally black mode as an example, as illustrated in fig. 1 and 2, when box thickness is R1, liquid crystal display OFF state reflectance spectrum as shown in solid line LC_R1, the OFF state reflectivity in red spectral band is extremely low, but in blue wave band and OFF state reflectivity in green light band is higher；When box thickness is R2, the OFF state reflectance spectrum of liquid crystal display such as solid line LC_R2 Shown, the OFF state reflectivity in green light band is extremely low, but the OFF state reflectivity in blue wave band and in red spectral band is equal It is higher；When box thickness is R3, pass of the OFF state reflectance spectrum of liquid crystal display as shown in solid line LC_R3, in blue wave band State reflectivity is extremely low, but the OFF state reflectivity in red spectral band and in green light band is higher.Due to always can not be in feux rouges There is extremely low OFF state reflectivity, the reflection LCD of normally black mode simultaneously in wave band, green light band and blue wave band It can not accomplish complete black in OFF state, OFF state effect is bad to cause its contrast lower, simultaneously as between different-waveband OFF state difference in reflectivity it is larger so that it has more serious colour cast, and cause NTSC lower.
Similarly, the OFF state transmitance of the permeation type liquid crystal display of normally black mode can only reach extremely low in a certain wave band Value, the OFF state reflectivity of the reflection LCD of normal white mode can only reach extremely high value, normal white mode in a certain wave band The OFF state transmitance of permeation type liquid crystal display can only reach extremely high value in a certain wave band.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of production method of color membrane substrates, color membrane substrates And liquid crystal display.The production method can control required liquid crystal display on red spectral band, blue wave band and green light band All simultaneously there is required OFF state exitance, the OFF state effect of liquid crystal display can be improved, reach high contrast, high NTSC, The purpose of low colour cast.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of production method of color membrane substrates, comprising:
Step 1: the OFF state according to multiple regular liquid crystal displays is emitted spectrum and its corresponding box is thick, establishes OFF state emergent light Spectrum-box thickness correlation model；
Step 2: being emitted spectrum-box thickness correlation model according to the OFF state established, calculate and respectively reach required R wave band OFF state and go out When penetrating rate, G-band OFF state exitance and B wave band OFF state exitance, corresponding first box is thick, the second box is thick and third box It is thick；
Step 3:, second box thickness thick according to calculated first box and third box are thick, color membrane substrates needed for making, required coloured silk film base The one side of plate towards liquid crystal layer in the Zone R domain corresponding to R sub-pixel, the region G corresponding to G sub-pixel and corresponds to B sub-pixel B area on be respectively provided with different height so that required liquid crystal display has in Zone R domain, the first box is thick, has in the region G Second box is thick and has third box thick in B area.
Further, in step 3, R sub-pixel, G sub-pixel and the B sub-pixel of the RGB coloured silk film layer of required color membrane substrates Be respectively provided with different ink thickness so that required color membrane substrates towards liquid crystal layer one side in Zone R domain, the region G and B area It is respectively provided with different height；Alternatively, a transparent planar layer is covered in the RGB coloured silk film layer of required color membrane substrates, it is described transparent Flatness layer is respectively provided with different material thickness in Zone R domain, the region G and B area, so that required color membrane substrates are towards liquid crystal layer One side be respectively provided with different height in Zone R domain, the region G and B area.
Further, if the RGB coloured silk film layer has different ink thickness, step 3 includes:
Step 3.1:, second box thickness thick according to calculated first box and third box are thick, calculate R of the RGB coloured silk film layer Ink thickness between pixel, G sub-pixel and B sub-pixel is poor；
Step 3.2:, the RGB coloured silk film layer of make needed for color membrane substrates poor according to calculated ink thickness.
Further, if the transparent planar layer has different material thickness, step 3 includes:
Step 3.1:, second box thickness thick according to calculated first box and third box are thick, calculate the transparent planar layer in Zone R Differences in material thickness between domain, the region G and B area；
Step 3.2: according to calculated differences in material thickness, the transparent planar layer of color membrane substrates needed for making.
Further, step 1 includes:
Step 1.1: solving the Jones matrix for obtaining multiple regular liquid crystal displays respectively, each regular liquid crystal display has not Same box is thick；
Step 1.2: according to each Jones matrix obtained, extrapolating the OFF state outgoing spectrum of each regular liquid crystal display；
Step 1.3: it is thick according to each OFF state outgoing spectrum obtained and its corresponding box, establish OFF state outgoing spectrum-box thickness phase Close model.
Further, the OFF state outgoing spectrum-box thickness correlation model includes that light is aobvious by the common liquid crystals being not powered on R wave band OFF state exitance-box thickness correlation model, G-band OFF state exitance-box thickness correlation model and B wave band OFF state after showing device Exitance-box thickness correlation model.
Further, step 1.3 includes:
Step 1.3.1: from each OFF state of acquisition outgoing spectrum, the R wave band for respectively obtaining each regular liquid crystal display is closed State exitance, G-band OFF state exitance and B wave band OFF state exitance；
Step 1.3.2: according to obtained each R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance And its discrete point of corresponding box thickness, establish R wave band OFF state exitance-box thickness correlation model, G-band respectively using regression equation OFF state exitance-box thickness correlation model and B wave band OFF state exitance-box thickness correlation model.
A kind of color membrane substrates, towards liquid crystal layer one side correspond to R sub-pixel Zone R domain, corresponding to G sub-pixel It is respectively provided with different height in the region G and B area corresponding to B sub-pixel, so that required liquid crystal display has in Zone R domain First box is thick, have the second box thick in the region G and has that third box is thick in B area, with and meanwhile there is required R wave band OFF state to go out Penetrate rate, G-band OFF state exitance and B wave band OFF state exitance.
Further, the R sub-pixel, G sub-pixel and B sub-pixel of RGB coloured silk film layer are respectively provided with different ink thickness, So that the one side of the color membrane substrates towards liquid crystal layer is respectively provided with different height in Zone R domain, the region G and B area；Alternatively, A transparent planar layer is covered in its RGB coloured silk film layer, the transparent planar layer is respectively provided in Zone R domain, the region G and B area Different material thickness, so that the one side of the color membrane substrates towards liquid crystal layer is respectively provided with not in Zone R domain, the region G and B area Same height.
A kind of liquid crystal display, including above-mentioned color membrane substrates.
The invention has the following beneficial effects: the production method by required color membrane substrates being fabricated on one side towards liquid crystal layer Different height, so that the box thickness of required liquid crystal display is equal for non-uniform throughout, then corresponding sub-pixel of arranging in pairs or groups, with control Liquid crystal display needed for making all has required OFF state exitance, phase simultaneously on red spectral band, blue wave band and green light band Than the regular liquid crystal display equal in the thick uniform throughout of existing box, the OFF state effect of liquid crystal display can be improved, so that The liquid crystal display of the liquid crystal display of normally black mode more black, normal white mode in OFF state is whiter in OFF state, reaches high comparison The purpose of degree, high NTSC, low colour cast.
Detailed description of the invention
Fig. 1 is the schematic diagram of the equal regular liquid crystal display of existing box thickness uniform throughout；
Fig. 2 is OFF state reflectance spectrum when regular liquid crystal display shown in FIG. 1 has different box thickness；
Fig. 3 is the step block diagram of the production method of color membrane substrates provided by the invention；
Fig. 4 is the schematic diagram of liquid crystal display provided by the invention；
Fig. 5 is the schematic diagram of another liquid crystal display provided by the invention；
Fig. 6 is the OFF state reflectance spectrum of liquid crystal display provided by the invention.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment one
As shown in figure 3, a kind of production method of color membrane substrates 1, comprising:
Step 1: the OFF state according to multiple regular liquid crystal displays is emitted spectrum and its corresponding box is thick, establishes OFF state emergent light Spectrum-box thickness correlation model；
In the step 1, the box thickness refers to 3 thickness of liquid crystal layer in liquid crystal display.
The OFF state is emitted the liquid crystal display that spectrum refers to that light process is not powered on, and (normally black mode is black state, Chang Bai Mode is white state) after exitance curve on different-waveband, including OFF state reflectance curve and OFF state transmittance curve, due to It can be converted mutually by certain numerical value between OFF state reflectance curve and OFF state transmittance curve, OFF state reflectance curve It can also be indicated with OFF state transmittance curve, and reflection LCD is using OFF state reflectivity as OFF state index, thoroughly Type liquid crystal display is crossed using OFF state transmitance as OFF state index, therefore, this case is emitted spectrum using OFF state to state.
Wherein, as shown in Fig. 1,4 and 5, liquid crystal display include up and down with respect to fitting color membrane substrates 1 and array substrate 2, It is filled with liquid crystal layer 3 between the color membrane substrates 1 and array substrate 2, the first underlay substrate 11 of the color membrane substrates 1 is towards institute It states and is provided with RGB coloured silk film layer 12 in the one side of array substrate 2, the second underlay substrate 21 of the array substrate 2 is towards the coloured silk Tft array layer 22 is provided in the one side of ilm substrate 1；The RGB coloured silk film layer 12 includes multiple rgb pixels, and each rgb pixel is equal By a R sub-pixel, a G sub-pixel and a B sub-pixel group at.
As shown in Figure 1, regular liquid crystal display refers to that it corresponds to the Zone R domain of R sub-pixel, the G corresponding to G sub-pixel It region and is shown corresponding to thick (3 thickness of liquid crystal layer) equal custom liquid crystals of uniform throughout of box between the B area of B sub-pixel Device.
The step 1 specifically includes:
Step 1.1: solving the Jones matrix for obtaining multiple regular liquid crystal displays respectively, each regular liquid crystal display has not Same box is thick；
In the step 1.1, if the required color membrane substrates 1 of production are applied to normally black mode, solve common used in Jones matrix Liquid crystal display is also normally black mode, if the required color membrane substrates 1 of production are applied to normal white mode, is solved used in Jones matrix Regular liquid crystal display be also normal white mode.
When solving Jones matrix, first detection, which obtains, to be related to needed for calculating Jones matrix in each regular liquid crystal display Material optical parameter (transmittance curve of such as polaroid, the dispersion curve of compensation film, liquid crystal dispersion curve), then will The optical parameter of required material is input in Jones matrix software for calculation, and it is corresponding to solve each regular liquid crystal display by software Jones matrix.
Step 1.2: according to each Jones matrix obtained, extrapolating the OFF state emergent light of each regular liquid crystal display Spectrum；
As described above, the OFF state outgoing spectrum extrapolated substantially has two curves of spectrum, one is OFF state reflectance curve, separately One is OFF state transmittance curve.
By taking the reflection LCD of normally black mode as an example, as shown in Fig. 2, solid line LC_R1, LC_R2 and LC_R3 are exactly The OFF state reflectance spectrum of the box thickness extrapolated corresponding regular liquid crystal display when being respectively R1, R2 and R3.
Step 1.3: it is thick according to each OFF state outgoing spectrum obtained and its corresponding box, establish OFF state outgoing spectrum-box Thick correlation model.
In the step 1.3, the OFF state outgoing spectrum-box thickness correlation model includes that light passes through the common liquid crystals being not powered on R wave band OFF state exitance-box thickness correlation model, G-band OFF state exitance-box thickness correlation model and B wave band after display close State exitance-box thickness correlation model.
In a kind of specific modeling method, which is specifically included:
Step 1.3.1: from each OFF state of acquisition outgoing spectrum, the R wave band for respectively obtaining each regular liquid crystal display is closed State exitance, G-band OFF state exitance and B wave band OFF state exitance；
In step 1.3.1, if the required color membrane substrates 1 of production are applied to reflection-type, what is obtained is the reflection of R wave band OFF state Rate, G-band OFF state reflectivity and B wave band OFF state reflectivity；If the required color membrane substrates 1 of production are applied to infiltration type, obtain Be R wave band OFF state transmitance, G-band OFF state transmitance and B wave band OFF state transmitance.
It can be, but not limited to its OFF state if the required color film of production is applied to normally black mode in order to facilitate calculating It penetrates the minimum of each wave band in spectrum or average OFF state reflection/transmission rate corresponds to the OFF state exitance of wave band as it, such as: Using the minimum of red spectral band or average OFF state reflection/transmission rate as its R wave band OFF state exitance, with the minimum of green light band or Average OFF state reflection/transmission rate as its G-band OFF state exitance, with the minimum of blue wave band or average OFF state reflection/transmission Rate is as its B wave band OFF state exitance；If production required color membrane substrates 1 be applied to normal white mode, can be, but not limited to by Its OFF state is emitted the highest of each wave band in spectrum or average OFF state reflection/transmission rate is emitted as its OFF state for corresponding to wave band Rate, such as: using the highest of red spectral band or average OFF state reflection/transmission rate as its R wave band OFF state exitance, with green light band Highest or average OFF state reflection/transmission rate as its G-band OFF state exitance, it is anti-with the highest of blue wave band or average OFF state Penetrate/transmitance is as its B wave band OFF state exitance.
Certainly, the R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance of modeling are not limited to In above-mentioned minimum, peak or average value, different choosing methods can be used according to actual demand, for example take weighted value Deng.
Step 1.3.2: go out according to obtained each R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state The discrete point for penetrating rate and its corresponding box thickness establishes R wave band OFF state exitance-box thickness correlation model, G using regression equation respectively Wave band OFF state exitance-box thickness correlation model and B wave band OFF state exitance-box thickness correlation model.
In step 1.3.2, the discrete point of modeling includes: R wave band OFF state exitance-box thickness discrete point, G-band OFF state exitance-box thickness discrete point and B wave band OFF state exitance-box thickness discrete point.
It illustrates, regression equation is established by discrete point only to facilitate understand that this case enumerates wherein one The specific modeling pattern of kind, the protection scope of this case should include other existing modeling patterns.
Step 2: being emitted spectrum-box thickness correlation model according to the OFF state established, calculate and respectively reach required R wave band pass When state exitance, G-band OFF state exitance and B wave band OFF state exitance, corresponding first box thickness h1, the second box thickness h2 and Third box thickness h3；
In the step 2, if the required color membrane substrates 1 of production are applied to the reflection-type of normally black mode, it is desirable for extremely low R wave Section OFF state reflectivity, G-band OFF state reflectivity and B wave band OFF state reflectivity；If the required color membrane substrates 1 of production are applied to normally-black The infiltration type of mode is then desirable for extremely low R wave band OFF state transmitance, G-band OFF state transmitance and B wave band OFF state and penetrates Rate；If the required color membrane substrates 1 of production are applied to the reflection-type of normal white mode, it is desirable for high R wave band OFF state reflection Rate, G-band OFF state reflectivity and B wave band OFF state reflectivity；If the required color membrane substrates 1 of production are applied to the transmission of normal white mode Type is then desirable for high R wave band OFF state transmitance, G-band OFF state transmitance and B wave band OFF state transmitance.
In order to keep the OFF state effect of required liquid crystal display best, the first box thickness h1, the second box thickness h2 and third are being calculated When box thickness h3, optimally, R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance are all made of OFF state and go out Penetrate OFF state reflectivity/transmitance minimum or peak in spectrum-box thickness correlation model.
But in specific implementation, the processing procedure precision of various manufacturers is different, and therefore, the R wave band that when calculation box thickness uses closes State exitance, G-band OFF state exitance and B wave band OFF state exitance may be in OFF state outgoing spectrum-box thickness correlation model OFF state reflectivity/transmitance lower value or high value, wherein if production required color membrane substrates 1 be applied to normally black mode, Then OFF state reflectivity/transmitance lower value is advisable between 0-10%, if the required color membrane substrates 1 of production are applied to Chang Baimo Formula, then OFF state reflectivity/transmitance high value is advisable in 90-100%, specifically depending on the processing procedure precision of various manufacturers.
By taking the reflection LCD of normally black mode as an example, made according to three OFF state reflectance spectrums shown in Fig. 2 If color membrane substrates 1 needed for making, it can could see, when box thickness is R1, OFF state of the regular liquid crystal display in red spectral band Reflectivity is extremely low, and when box thickness is R2, OFF state reflectivity of the regular liquid crystal display in green light band is extremely low, when box thickness is R3 When, OFF state reflectivity of the regular liquid crystal display in blue wave band is extremely low, then, in order to make to apply required color membrane substrates 1 Required liquid crystal display afterwards has extremely low OFF state reflectivity simultaneously in red spectral band, green light band and blue wave band, just Needed for being made according to first box thickness h1=R1, second box thickness h2=R2 and the third box thickness h3=R3 of required liquid crystal display Color membrane substrates 1.
Step 3: according to calculated first box thickness h1, the second box thickness h2 and third box thickness h3, color membrane substrates needed for making 1, required color membrane substrates 1 towards liquid crystal layer 3 one side correspond to R sub-pixel Zone R domain, corresponding to G sub-pixel the region G and Different height is respectively provided in B area corresponding to B sub-pixel, so that required liquid crystal display has the first box in Zone R domain Thick h1, the region G with the second box thickness h2 and B area have third box thickness h3.
In the step 3, required liquid crystal display refers to applying the liquid crystal display of required color membrane substrates 1, in addition to R Box thickness ununiformity between region, the region G and B area it is even it is equal except, polaroid, base plate glass, liquid crystal molecule, ITO and RGB The materials such as ink are all made of specification identical with regular liquid crystal display.
By taking the reflection LCD of normally black mode as an example, when the Zone R domain of required liquid crystal display has the first box thick When h1=R1, the region G have third box thickness h3=R3 with second box thickness h2=R2 and B area, the OFF state of the required liquid crystal display For reflectance spectrum as shown in fig. 6, solid line LC_R is the OFF state reflectance spectrum in Zone R domain, solid line LC_G is the OFF state reflected light in the region G Spectrum, LR_B be B area OFF state reflectance spectrum, can could see, Zone R domain, the region G and B area simultaneously red spectral band, Extremely low OFF state reflectivity is maintained in green light band and blue wave band.
In one embodiment, as shown in figure 4, the R sub-pixel of the RGB coloured silk film layer 12 of required color membrane substrates 1, G picture Element and B sub-pixel be respectively provided with different ink thickness so that required color membrane substrates 1 towards liquid crystal layer 3 one side in Zone R domain, G Different height is respectively provided on region and B area.
At this point, the step 3 specifically includes:
Step 3.1: according to calculated first box thickness h1, the second box thickness h2 and third box thickness h3, calculating the RGB coloured silk film layer Ink thickness between 12 R sub-pixel, G sub-pixel and B sub-pixel is poor；
Step 3.2:, the RGB coloured silk film layer 12 of make needed for color membrane substrates 1 poor according to calculated ink thickness.
The step 3.2 in specific implementation, can be first using the ink thickness of the corresponding sub-pixel of box thickness maximum region as base Standard, then foundation ink thickness difference calculate the ink thickness of the corresponding sub-pixel in other two region.If calculated first Box thickness h1 is maximum, then using the ink thickness of the corresponding R sub-pixel in Zone R domain as benchmark, does not calculate G according to ink thickness difference The RGB of the ink thickness of the corresponding G sub-pixel in region and the corresponding B sub-pixel of B area, color membrane substrates 1 needed for finally making is color Film layer 12.
In another embodiment, as shown in figure 5, to be covered with one in the RGB coloured silk film layer 12 of required color membrane substrates 1 transparent Flatness layer 13, the transparent planar layer 13 is respectively provided with different material thickness in Zone R domain, the region G and B area, so that institute Color membrane substrates 1 are needed to be respectively provided with different height in Zone R domain, the region G and B area towards the one side of liquid crystal layer 3.
At this point, the step 3 specifically includes:
Step 3.1: according to calculated first box thickness h1, the second box thickness h2 and third box thickness h3, calculating the transparent planar Differences in material thickness of the layer 13 between Zone R domain, the region G and B area；
Step 3.2: according to calculated differences in material thickness, the transparent planar layer 13 of color membrane substrates 1 needed for making.
The step 3.2 in specific implementation, can be first thick with the material of the corresponding transparent planar layer 13 of box thickness maximum region On the basis of degree, then foundation differences in material thickness calculates the material thickness of the corresponding transparent planar layer 13 in other two region.If Calculated first box thickness h1 is maximum, then using the material thickness (preferably 0) of the corresponding transparent planar layer 13 in Zone R domain as base Standard calculates the material thickness in the region G and the corresponding transparent planar layer 13 of B area according to differences in material thickness, needed for finally making The transparent planar layer 13 of color membrane substrates 1.
The transparent planar layer 13 is preferably but not limited to as OC glue.
Required color membrane substrates 1 are fabricated to different height towards liquid crystal layer 3 by the production method on one side, so that required liquid The box thickness of crystal display is equal for non-uniform throughout, then corresponding sub-pixel of arranging in pairs or groups, to control required liquid crystal display red All there is required OFF state exitance simultaneously on optical band, blue wave band and green light band, it is equal everywhere compared to existing box thickness Even equal regular liquid crystal display can improve the OFF state effect of liquid crystal display, so that the liquid crystal display of normally black mode In OFF state, the liquid crystal display of more black, normal white mode is whiter in OFF state, reaches the mesh of high contrast, high NTSC, low colour cast 's.
The production method is particularly suitable for OFF state effect to the thick sensitive distortion type liquid crystal display of box, but to non-distorted type Liquid crystal display is equally applicable.
Embodiment two
As shown in Figures 4 and 5, a kind of color membrane substrates 1 are corresponding to the Zone R domain of R sub-pixel, correspondence towards the one side of liquid crystal layer 3 In being respectively provided with different height on the region G of G sub-pixel and the B area corresponding to B sub-pixel, so that required liquid crystal display Zone R domain with the first box thickness h1, the region G with the second box thickness h2 and B area have third box thickness h3, to have simultaneously Required R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance.
Required liquid crystal display refers to having used the liquid crystal display of the color membrane substrates 1, in addition to Zone R domain, the region G and Box thickness ununiformity between B area it is even it is equal except, the materials such as polaroid, base plate glass, liquid crystal molecule, ITO and RGB ink are equal Using specification identical with regular liquid crystal display.
In one embodiment, as shown in figure 4, R sub-pixel, the G sub-pixel of the RGB coloured silk film layer 12 of the color membrane substrates 1 Be respectively provided with different ink thickness with B sub-pixel so that the color membrane substrates 1 towards liquid crystal layer 3 one side in Zone R domain, the region G The different height with being respectively provided in B area.
In another embodiment, as shown in figure 5, to be covered with one in the RGB coloured silk film layer 12 of the color membrane substrates 1 transparent flat Smooth layer 13, the transparent planar layer 13 is respectively provided with different material thickness in Zone R domain, the region G and B area, so that the coloured silk The one side of ilm substrate 1 towards liquid crystal layer 3 is respectively provided with different height in Zone R domain, the region G and B area.
The transparent planar layer 13 is preferably but not limited to as OC glue.
Embodiment three
As shown in Figures 4 and 5, a kind of liquid crystal display, including color membrane substrates 1 described in embodiment two.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as skill obtained in the form of equivalent substitutions or equivalent transformations Art scheme should all be fallen within the scope and spirit of the invention.

Claims (10)

1. a kind of production method of color membrane substrates characterized by comprising
Step 1: the OFF state according to multiple regular liquid crystal displays is emitted spectrum and its corresponding box is thick, establishes OFF state emergent light Spectrum-box thickness correlation model；
Step 2: being emitted spectrum-box thickness correlation model according to the OFF state established, calculate and respectively reach required R wave band OFF state and go out When penetrating rate, G-band OFF state exitance and B wave band OFF state exitance, corresponding first box is thick, the second box is thick and third box It is thick；
Step 3:, second box thickness thick according to calculated first box and third box are thick, color membrane substrates needed for making, required coloured silk film base The one side of plate towards liquid crystal layer in the Zone R domain corresponding to R sub-pixel, the region G corresponding to G sub-pixel and corresponds to B sub-pixel B area on be respectively provided with different height so that required liquid crystal display has in Zone R domain, the first box is thick, has in the region G Second box is thick and has third box thick in B area.
2. the production method of color membrane substrates according to claim 1, which is characterized in that in step 3, required color membrane substrates R sub-pixel, G sub-pixel and the B sub-pixel of RGB coloured silk film layer be respectively provided with different ink thickness so that required color membrane substrates Different height is respectively provided in Zone R domain, the region G and B area towards the one side of liquid crystal layer；Alternatively, required color membrane substrates A transparent planar layer is covered in RGB coloured silk film layer, the transparent planar layer is respectively provided with not in Zone R domain, the region G and B area Same material thickness, so that the one side of required color membrane substrates towards liquid crystal layer is respectively provided with not in Zone R domain, the region G and B area Same height.
3. the production method of color membrane substrates according to claim 2, which is characterized in that if the RGB coloured silk film layer has not With ink thickness, then step 3 include:
Step 3.1:, second box thickness thick according to calculated first box and third box are thick, calculate R of the RGB coloured silk film layer Ink thickness between pixel, G sub-pixel and B sub-pixel is poor；
Step 3.2:, the RGB coloured silk film layer of make needed for color membrane substrates poor according to calculated ink thickness.
4. the production method of color membrane substrates according to claim 2, which is characterized in that if the transparent planar layer has not With material thickness, then step 3 include:
Step 3.1:, second box thickness thick according to calculated first box and third box are thick, calculate the transparent planar layer in Zone R Differences in material thickness between domain, the region G and B area；
Step 3.2: according to calculated differences in material thickness, the transparent planar layer of color membrane substrates needed for making.
5. the production method of color membrane substrates according to any one of claims 1-4, which is characterized in that step 1 includes:
Step 1.1: solving the Jones matrix for obtaining multiple regular liquid crystal displays respectively, each regular liquid crystal display has not Same box is thick；
Step 1.2: according to each Jones matrix obtained, extrapolating the OFF state outgoing spectrum of each regular liquid crystal display；
Step 1.3: it is thick according to each OFF state outgoing spectrum obtained and its corresponding box, establish OFF state outgoing spectrum-box thickness phase Close model.
6. the production method of color membrane substrates according to any one of claims 1-4, which is characterized in that the OFF state emergent light Spectrum-box thickness correlation model includes that R wave band OFF state exitance-box of the light after the regular liquid crystal display being not powered on is thick related Model, G-band OFF state exitance-box thickness correlation model and B wave band OFF state exitance-box thickness correlation model.
7. the production method of color membrane substrates according to claim 5, which is characterized in that step 1.3 includes:
Step 1.3.1: from each OFF state of acquisition outgoing spectrum, the R wave band for respectively obtaining each regular liquid crystal display is closed State exitance, G-band OFF state exitance and B wave band OFF state exitance；
Step 1.3.2: according to obtained each R wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance And its discrete point of corresponding box thickness, establish R wave band OFF state exitance-box thickness correlation model, G-band respectively using regression equation OFF state exitance-box thickness correlation model and B wave band OFF state exitance-box thickness correlation model.
8. a kind of color membrane substrates, which is characterized in that it is corresponding to the Zone R domain of R sub-pixel, corresponding to towards the one side of liquid crystal layer It is respectively provided with different height in the region G of G sub-pixel and the B area corresponding to B sub-pixel, so that required liquid crystal display exists Zone R domain is thick with the first box, have the second box thick in the region G and has that third box is thick in B area, with and meanwhile there is required R Wave band OFF state exitance, G-band OFF state exitance and B wave band OFF state exitance.
9. color membrane substrates according to claim 8, which is characterized in that R sub-pixel, G sub-pixel and the B of its RGB coloured silk film layer Sub-pixel is respectively provided with different ink thickness so that the color membrane substrates towards liquid crystal layer one side in Zone R domain, the region G and the area B Different height is respectively provided on domain；Alternatively, being covered with a transparent planar layer in its RGB coloured silk film layer, the transparent planar layer is in R Be respectively provided with different material thickness in region, the region G and B area so that the color membrane substrates towards liquid crystal layer one side in Zone R Different height is respectively provided in domain, the region G and B area.
10. a kind of liquid crystal display, which is characterized in that including color membrane substrates described in claim 8 or 9.
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