CN202837750U - Color film substrate and liquid crystal display device - Google Patents
Color film substrate and liquid crystal display device Download PDFInfo
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- CN202837750U CN202837750U CN2012205148980U CN201220514898U CN202837750U CN 202837750 U CN202837750 U CN 202837750U CN 2012205148980 U CN2012205148980 U CN 2012205148980U CN 201220514898 U CN201220514898 U CN 201220514898U CN 202837750 U CN202837750 U CN 202837750U
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- film
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Abstract
The utility model discloses a color film substrate and a liquid crystal display device, and relates to the field of liquid crystal displays. The color film substrate can effectively reduce the reflectivity of light rays penetrating the color film substrate, and improves the transmissivity of the liquid crystal display device. The color film substrate comprises a substrate, wherein a black matrix graph and a colorful film filter are arranged on a first surface of the substrate in sequence, an antireflection film is arranged on a second surface opposite to the first surface of the substrate, an indium tin oxides (ITO) layer is covered on the antireflection film, and the refractive index of the antireflection film is larger than that of the substrate and smaller than that of the ITO layer.
Description
Technical field
The utility model relates to field of liquid crystal display, relates in particular to a kind of color membrane substrates and liquid crystal indicator.
Background technology
In recent years, increasingly mature along with the photoelectric display technology, the application of liquid crystal indicator is more and more extensive.Because of its having the life-span long, light efficiency is high, radiation is low, the characteristics such as low in energy consumption, liquid crystal indicator has replaced gradually traditional ray tube display device and has become the in recent years research direction of display device product main flow.
A kind of new liquid crystal indicator display mode: FFS (Fringe Field Switching, fringing field switches) pattern has been proposed at present.This pattern can be improved the low aperture of IPS (switching in the In-Plane Switching, face) pattern existence and the problem of transmissivity.The principal character of FFS pattern is ITO (Indium Tin Oxide, indium tin metal oxide) is deposited upon the back side of substrate, and unlike in the traditional handicraft ITO being deposited upon CF (Color Flitter, a color filter film) side as electrode.Therefore, the ITO layer in the liquid crystal indicator of FFS pattern plays the shielding external electrical field, prevents the inner liquid crystal device of electrostatic breakdown and the effect that affects liquid crystal deflecting element.
But the inventor finds that in R﹠D process there is following defective at least in prior art: when light is entered by the color filter film side, when substrate shines the ITO layer, because the refractive index of the refractive index ratio substrate of ITO layer is high, light enters optically denser medium from optically thinner medium at two dielectric surfaces the half-wave loss phenomenon can occur, and therefore can reduce the optical transmittance of color membrane substrates.
Summary of the invention
Embodiment of the present utility model technical matters to be solved is to provide a kind of color membrane substrates and liquid crystal indicator, redistributes the energy of catoptrical energy and transmitted light, improves the transmissivity of liquid crystal indicator.
For solving the problems of the technologies described above, embodiment of the present utility model adopts following technical scheme:
The utility model provides a kind of color membrane substrates, comprise: substrate, be successively set on black Matrix Pattern and color filter film on the first surface of described substrate, be provided with anti-reflection film on the second surface that is oppositely arranged with the first surface of described substrate, be coated with indium tin metal oxide ITO layer on the described anti-reflection film, the refractive index of described anti-reflection film is greater than the refractive index of described substrate and less than the refractive index of described ITO.
Further, the figure of described anti-reflection film is consistent with the figure of described color filter film.
Further, the thickness of described anti-reflection film is d, wherein
K is natural number, and λ is required anti-reflection light wavelength.
On the other hand, the utility model also provides a kind of liquid crystal indicator, comprises aforesaid color membrane substrates.
On the one hand, the present invention also provides a kind of method for making of color membrane substrates, comprising again: the figure that forms anti-reflection film at the second surface of substrate;
Form the ITO layer at described anti-reflection film;
First surface at described substrate forms black Matrix Pattern;
Form color filter film at described black Matrix Pattern.
Further, the figure of described anti-reflection film is consistent with the figure of described color filter film.
Further, the thickness of described anti-reflection film is d, wherein
K is natural number, and λ is required anti-reflection light wavelength.
A kind of color membrane substrates and the liquid crystal indicator of the utility model embodiment, by between substrate and ITO layer, anti-reflection film being set, and the refractive index of anti-reflection film is greater than the refractive index of substrate and less than the refractive index of ITO layer, the energy that can increase transmitted light reduces energy of reflection light, so that more light effectively transmission go out, improve the transmissivity of liquid crystal indicator light.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of color membrane substrates among the utility model embodiment;
Fig. 2 is the prize schematic flow sheet of film method for preparing substrate of the utility model embodiment.
Description of reference numerals: 1, substrate; 2, color filter film; 3, anti-reflection film; 4, ITO layer; 5, black matrix; 21, red filter coating; 22, green filter film; 23, blue filter coating; 31, red anti-reflection film; 32, green anti-reflection film; 33, blue anti-reflection film.
Embodiment
The utility model embodiment provides a kind of color membrane substrates and liquid crystal indicator, can reduce the reflectivity of color membrane substrates light, improves the transmissivity of liquid crystal indicator.
In below describing, in order to illustrate rather than in order limiting, to have proposed the detail such as particular system structure, interface, technology, understand the utility model in order to thoroughly cut.Yet, not it will be clear to one skilled in the art that in having other embodiment of these details and can realize the utility model yet.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders description of the present utility model.
Below in conjunction with following accompanying drawing the utility model embodiment is described in detail.
Present embodiment provides a kind of color membrane substrates, such as Fig. 1, comprise: substrate 1, be successively set on black matrix 5 figures and color filter film 2 on the first surface of substrate 1, be provided with anti-reflection film 3 on the second surface that is oppositely arranged with the first surface of substrate 1, be coated with ITO layer 4 on the anti-reflection film 3, the refractive index of anti-reflection film 3 is greater than the refractive index of substrate 1 and less than the refractive index of ITO layer 4.
Need to prove that the substrate in the utility model comprises first surface and second surface, first surface and second surface are oppositely arranged, first surface be real estate to the surface of liquid crystal layer, second surface is the dorsad surface of liquid crystal layer of substrate.
The color membrane substrates of present embodiment is mainly for the liquid crystal indicator that uses fringe field switching mode.According to the characteristics of fringe field switching mode, the ITO layer deposition substrate in the liquid crystal indicator of this pattern be a side of color filter film dorsad, is used for shielding external electrical field, prevents that static is on the impact of liquid crystal indicator.But because the refractive index of the refractive index ratio substrate of ITO layer wants large, when light by the color filter film side when substrate enters the ITO layer, can be in two dielectric surface generation half-wave loss phenomenons of ITO layer and substrate.Therefore when between substrate and ITO layer anti-reflection film being set, anti-reflection film can reduce the energy that catoptrical energy increases transmitted light, improves the transmissivity of the light of color membrane substrates.
Energy of reflection light and transmitted light energy embody by reflectivity.Reflectivity refers to project the ratio of the body surface radiation energy that is reflected and the integrated radiant emittance that projects body surface.Wherein, when light beam during near normal incidence (incident angle that is light approximates 0), reflectivity satisfies following formula: R=(n
2-n
1) square/(n
2+ n
1) square, n
1, n
2The refractive index that represents respectively the two media material that light passes through continuously, transmissivity=1-reflectivity.As a kind of embodiment of the present utility model, the refractive index of supposing substrate is n
1, the refractive index of ITO layer is n
2, the refractive index of anti-reflection film is n.Increase the energy of transmitted light in order to reduce catoptrical energy, improve the transmissivity of light, the refractive index n that calculates anti-reflection film will satisfy n
1＜n＜n
2(n
1＜n
2, the refractive index of substrate is less than the refractive index of ITO layer).As a kind of preferred embodiment of the present utility model, when the refractive index n of anti-reflection film satisfies
The time, the transmissivity that calculate this moment can reach 100%, and namely light reflects, and transmission has all occured.
The color membrane substrates of the utility model embodiment, by between substrate and ITO layer, anti-reflection film being set, and the refractive index of anti-reflection film is greater than the refractive index of substrate and less than the refractive index of ITO layer, the energy that can increase transmitted light reduces energy of reflection light, so that more light effectively transmission go out, improved the transmissivity of light.
Further, the figure of anti-reflection film is consistent with the figure of color filter film.Color filter film is a kind of optical lightscreening structure of apparent color, and the among a small circle wave band light wave that it can accurately select wish to pass through reflects or sponges the light wave that other do not wish the wave band that passes through, and color filter film comprises the Red Green Blue filter coating usually.Black matrix role provides the alignment mark of color filter film and prevents light leak.Therefore, it is anti-reflection to guarantee that actually transmitted light all obtains, and the figure of anti-reflection film is consistent with the figure of color filter film.Certainly, the figure of anti-reflection film can have other shape, figure such as anti-reflection film is larger than the figure of color filter film, but it is occupied that redundance is deceived Matrix Pattern, can't exert an influence to liquid crystal display, so the figure of anti-reflection film is optimum selection when consistent with the figure of color filter film.
Further, the thickness of anti-reflection film is d, wherein
K is natural number, and λ is required anti-reflection light wavelength.As shown in Figure 1, color filter film 2 comprises red filter coating 21, green filter film 22, blue filter coating 23, and the resulting light color of the filter coating of different colours is also different.For making each filter coating gained light all obtain best antireflective effect, anti-reflection film 3 also correspondence arranges red anti-reflection film 31, green anti-reflection film 32, blue anti-reflection film 33.According to the characteristics of light wave grain duality, when the thickness d of anti-reflection film satisfies
The time, the anti-reflection film of thickness d can produce best antireflective effect to the light of wavelength X.As a kind of embodiment of the present utility model, suppose that the red light wavelength that red filter coating 21 obtains is λ
1, λ wherein
1Therefore=610nm calculates selectable red anti-reflection film thickness d
1=152nm.Same, the optical wavelength that green anti-reflection film 22 obtains is λ
2, λ wherein
2=550nm, therefore selectable green anti-reflection film thickness d
2=137nm; The optical wavelength that blue anti-reflection film 23 obtains is λ
3, λ wherein
3=460nm, therefore selectable blue anti-reflection film thickness d
3=115nm.Those skilled in the art as can be known, this part only is to the analysis of embodiment and explanation, is not to further restriction of the present utility model.
The color membrane substrates of the utility model embodiment, by between substrate and ITO layer, anti-reflection film being set, and the refractive index of anti-reflection film is greater than the refractive index of substrate and less than the refractive index of ITO layer, the energy that can increase transmitted light reduces energy of reflection light, so that the effectively transmission of more light, improved the transmissivity of liquid crystal indicator light.
In addition, the utility model also provides a kind of method for making of color membrane substrates, as shown in Figure 2, comprising:
S1: the figure that forms anti-reflection film at the second surface of substrate;
Concrete, at first between the second surface of substrate and evaporation target or sputtering target material, the aluminum mask plate is set, see through the figure that vacancy on mask plate is determined anti-reflection film, the spacing between mask plate two adjacent vacant are scarce is set to the width of two sub-pixs.Then carry out the translation depositing operation three times, on the second surface of substrate, form respectively red anti-reflection film figure, green anti-reflection film figure and blue anti-reflection film figure.
Further, the figure of anti-reflection film is consistent with the gap area between the black Matrix Pattern.
Further, the thickness of anti-reflection film is d, wherein
K is natural number, and λ is required anti-reflection light wavelength.For reaching best antireflective effect, to design the anti-reflection film of different-thickness for the filter coating of different colours, the thickness of anti-reflection film is controlled by the sedimentation time of adjusting depositing operation.
S2: form the ITO layer at anti-reflection film;
Concrete, use magnetron sputtering or gas-phase deposition deposition to form one deck ITO layer at the substrate second surface of finishing S1, make it to play the effect of shielding external electrical field.
S3: the first surface at substrate forms black Matrix Pattern;
Concrete, at the first surface of the substrate of finishing S2, at first applying black matrix material, the mode of coating can be used the method for printing and dyeing or deposition.Then remove unwanted black matrix part by etching technics, and the black matrix that remains is cured and drying, finally form the black Matrix Pattern of grid arrangement.
S4: form color filter film at black Matrix Pattern;
Concrete, at the first surface of the substrate of finishing S3, by the dispersion method coating pigment, utilize glue spreader that pigment and resin are coated on the substrate first surface uniformly, then with the pigment drying and forming-film, the recycling photoetching process is made dot pattern, forms at last the color filter film of arrayed.
Among the utility model embodiment, the specific implementation of each step about the mode that forms black Matrix Pattern and the description of color filter film, is exemplary illustration only especially wherein, is not limitation of the utility model.
The method for making of the color membrane substrates of the utility model embodiment, by between substrate and ITO layer, anti-reflection film being set, and the refractive index of anti-reflection film is greater than the refractive index of substrate and less than the refractive index of ITO layer, the energy that can increase transmitted light reduces energy of reflection light, so that more light effectively transmission go out, improve the transmissivity of liquid crystal indicator.
In addition, the utility model embodiment also provides a kind of liquid crystal indicator, comprises aforesaid color membrane substrates.Described liquid crystal indicator can be any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.Wherein, the structure of color membrane substrates and principle of work do not repeat them here with above-mentioned embodiment.In addition, the structure of other parts of liquid crystal indicator can with reference to prior art, be not described in detail this this paper.
The liquid crystal indicator of the utility model embodiment, the energy that can increase transmitted light reduces energy of reflection light so that more light effectively transmission go out the light transmission of raising liquid crystal indicator.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by described protection domain with claim.
Claims (4)
1. color membrane substrates, comprise: substrate, be successively set on black Matrix Pattern and color filter film on the first surface of described substrate, it is characterized in that, be provided with anti-reflection film on the second surface that is oppositely arranged with the first surface of described substrate, be coated with indium tin metal oxide ITO layer on the described anti-reflection film, the refractive index of described anti-reflection film is greater than the refractive index of described substrate and less than the refractive index of described ITO.
2. color membrane substrates according to claim 1 is characterized in that, the figure of described anti-reflection film is consistent with the figure of described color filter film.
3. color membrane substrates according to claim 1 is characterized in that, the thickness of described anti-reflection film is d, wherein
K is natural number, and λ is required anti-reflection light wavelength.
4. a liquid crystal indicator is characterized in that, comprises each described color membrane substrates of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205148980U CN202837750U (en) | 2012-09-29 | 2012-09-29 | Color film substrate and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205148980U CN202837750U (en) | 2012-09-29 | 2012-09-29 | Color film substrate and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837750U true CN202837750U (en) | 2013-03-27 |
Family
ID=47949417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205148980U Expired - Lifetime CN202837750U (en) | 2012-09-29 | 2012-09-29 | Color film substrate and liquid crystal display device |
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| Country | Link |
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| CN (1) | CN202837750U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879948A (en) * | 2012-09-29 | 2013-01-16 | 京东方科技集团股份有限公司 | Color filter substrate, liquid crystal display device and manufacturing method of color filter substrate |
| CN103399367A (en) * | 2013-07-30 | 2013-11-20 | 合肥京东方光电科技有限公司 | Display base plate and manufacturing method thereof, as well as display device |
| CN105467669A (en) * | 2016-02-03 | 2016-04-06 | 京东方科技集团股份有限公司 | Display substrate, preparing method thereof, display panel and display device |
| CN105589251A (en) * | 2016-02-29 | 2016-05-18 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and display device |
| CN109613747A (en) * | 2019-02-15 | 2019-04-12 | 合肥京东方光电科技有限公司 | Array substrate for reflective display panel and preparation method thereof and display panel |
| WO2019127853A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳市华星光电半导体显示技术有限公司 | Color film substrate, liquid crystal display panel, and liquid crystal display |
| CN110459573A (en) * | 2019-08-20 | 2019-11-15 | 昆山工研院新型平板显示技术中心有限公司 | The production method and display device of display panel, display panel |
-
2012
- 2012-09-29 CN CN2012205148980U patent/CN202837750U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879948A (en) * | 2012-09-29 | 2013-01-16 | 京东方科技集团股份有限公司 | Color filter substrate, liquid crystal display device and manufacturing method of color filter substrate |
| CN102879948B (en) * | 2012-09-29 | 2015-10-21 | 京东方科技集团股份有限公司 | Color membrane substrates, liquid crystal indicator and method for making |
| CN103399367A (en) * | 2013-07-30 | 2013-11-20 | 合肥京东方光电科技有限公司 | Display base plate and manufacturing method thereof, as well as display device |
| CN105467669A (en) * | 2016-02-03 | 2016-04-06 | 京东方科技集团股份有限公司 | Display substrate, preparing method thereof, display panel and display device |
| CN105589251A (en) * | 2016-02-29 | 2016-05-18 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and display device |
| WO2017147991A1 (en) * | 2016-02-29 | 2017-09-08 | 京东方科技集团股份有限公司 | Color filter panel and manufacturing method thereof, and display device |
| US10473838B2 (en) | 2016-02-29 | 2019-11-12 | Boe Technology Group Co., Ltd. | Color filter substrate and manufacturing method thereof, and display device |
| WO2019127853A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳市华星光电半导体显示技术有限公司 | Color film substrate, liquid crystal display panel, and liquid crystal display |
| CN109613747A (en) * | 2019-02-15 | 2019-04-12 | 合肥京东方光电科技有限公司 | Array substrate for reflective display panel and preparation method thereof and display panel |
| US11307464B2 (en) | 2019-02-15 | 2022-04-19 | Hefei Boe Optoelectronics Technology Co., Ltd. | Array substrate for reflective display panel, method for preparing the same and display panel |
| CN109613747B (en) * | 2019-02-15 | 2022-04-29 | 合肥京东方光电科技有限公司 | Array substrate for reflective display panel, preparation method of array substrate and display panel |
| CN110459573A (en) * | 2019-08-20 | 2019-11-15 | 昆山工研院新型平板显示技术中心有限公司 | The production method and display device of display panel, display panel |
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Granted publication date: 20130327 |