CN103091897B - A kind of liquid crystal indicator - Google Patents
A kind of liquid crystal indicator Download PDFInfo
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- CN103091897B CN103091897B CN201310041667.1A CN201310041667A CN103091897B CN 103091897 B CN103091897 B CN 103091897B CN 201310041667 A CN201310041667 A CN 201310041667A CN 103091897 B CN103091897 B CN 103091897B
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Abstract
The invention discloses a kind of liquid crystal indicator, comprise: the array base palte be oppositely arranged and color membrane substrates, and the opaque spacer between described array base palte and color membrane substrates, and described spacer is positioned at the top of the thin film transistor (TFT) of described array base palte.Because spacer is opaque, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte, then described spacer can block the light reflected by color membrane substrates.And from the structure of thin film transistor (TFT), there is gate line below the silicon island of described thin film transistor (TFT), identical with prior art, the light of backlight direct projection is blocked by gate line.Described thin film transistor (TFT) effectively can avoid the generation of liquid crystal indicator photogenerated leakage current, and then avoids the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
Description
Technical field
The invention belongs to field of liquid crystal display, particularly relate to a kind of liquid crystal indicator.
Background technology
Informationized society more and more needs frivolous portable display device, and the most ripe current product has been exactly liquid crystal indicator (Liquid Crystal Display).Liquid crystal indicator generally includes for the display panels of display frame with for providing the circuit part of signal to display panels.This display panels generally includes color membrane substrates and array base palte, and they are bonded to each other by frame glue and are separated by spacer, and liquid crystal material is injected in the gap between color membrane substrates and array base palte.
Described first substrate is such as thin film transistor (TFT) (Thin Film Transistor, TFT) array base palte, is formed with many gate lines and a plurality of data lines and corresponding is provided with multiple thin film transistor (TFT) above it.Wherein, the silicon island of described thin film transistor (TFT) generally adopts amorphous silicon material, and amorphous silicon material is a kind of photoactive substance, when being subject to illumination, the easy generation current of amorphous silicon material, is reacted on liquid crystal indicator and just there will be photogenerated leakage current, affects the work of liquid crystal indicator.
For the photogenerated leakage current of liquid crystal indicator, existing solution is generally adopt gate line as light-shielding structure, with the light of the direct directive thin film transistor (TFT) of the backlight blocking liquid crystal indicator.But still effectively cannot avoid the generation of the photogenerated leakage current of liquid crystal indicator, the stability of liquid crystal indicator work is still subject to the impact of photogenerated leakage current.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of liquid crystal indicator, to avoid the generation of liquid crystal indicator photogenerated leakage current completely, avoid the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
A kind of liquid crystal indicator, comprising:
The array base palte be oppositely arranged and color membrane substrates, and the opaque spacer between described array base palte and color membrane substrates, and described spacer is positioned at the top of the thin film transistor (TFT) of described array base palte.
Preferably, described spacer is black gap.
Preferably, the making material of described spacer comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
Preferably, described spacer is the spacer of column.
A method for making for liquid crystal indicator, comprising:
Array base palte is provided;
Above the thin film transistor (TFT) of described array base palte, form spacer, described spacer is opaque spacer;
Color membrane substrates is provided, and fit described array base palte and color membrane substrates.
Preferably, the process of described formation spacer, comprising:
Apply opaque photochromics on the surface at described array base palte, form opaque layer;
There is the mask plate of spacer figure for mask, described opaque layer is exposed, described opaque layer is formed spacer pattern;
Adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer, and described spacer is positioned at above the thin film transistor (TFT) of described array base palte;
Dry.
Preferably, described opaque photochromics comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
A method for making for liquid crystal indicator, comprising:
Color membrane substrates is provided;
Form spacer on the surface at described color membrane substrates, described spacer is opaque spacer;
Array base palte is provided, and fit described array base palte and color membrane substrates, and described spacer is corresponding with the thin film transistor (TFT) of described array base palte.
Preferably, the process of described formation spacer, comprising:
Apply opaque photochromics on the surface at described color membrane substrates, form opaque layer;
There is the mask plate of spacer figure for mask, described opaque layer is exposed, described opaque layer is formed spacer pattern;
Adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer, and the distribution of described spacer is corresponding with the distribution of the thin film transistor (TFT) of described array base palte;
Dry.
Preferably, described opaque photochromics comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
Compared with prior art, liquid crystal indicator provided by the present invention, comprise: the array base palte be oppositely arranged and color membrane substrates, and the opaque spacer between described array base palte and color membrane substrates, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte.Wherein, because spacer is opaque, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte, then described spacer can block the light reflected by color membrane substrates.And from the structure of thin film transistor (TFT), there is gate line below the silicon island of described thin film transistor (TFT), identical with prior art, the light of backlight direct projection is blocked by gate line.So compared with prior art, the liquid crystal indicator that the application provides further decreases the light being mapped to silicon island, then the photogenerated leakage current of described thin film transistor (TFT) silicon island also can weaken accordingly, namely liquid crystal indicator provided by the present invention effectively can avoid the generation of liquid crystal indicator photogenerated leakage current, and then avoids the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below by embodiment or description of the prior art required by accompanying drawing be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of liquid crystal indicator that the embodiment of the present application provides;
Fig. 2 ~ 5 are a kind of schematic flow sheets making spacer that the embodiment of the present application provides.
Embodiment
For by the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As described in background, existing liquid crystal indicator still effectively cannot avoid the generation of photogenerated leakage current, and the stability of liquid crystal indicator work is still subject to the impact of photogenerated leakage current.
Inventor studies discovery, although existing liquid crystal indicator has blocked the light of backlight direct projection to thin film transistor (TFT) silicon island by gate line, but the light that backlight sends can through the reflection of color membrane substrates, and then be irradiated to the silicon island of thin film transistor (TFT), there is significant photogenerated leakage current, so the stability of existing liquid crystal indicator work is still subject to the impact of photogenerated leakage current.
Therefore, inventor proposes a kind of liquid crystal indicator, this liquid crystal indicator comprises: the array base palte be oppositely arranged and color membrane substrates, and the opaque spacer between described array base palte and color membrane substrates, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte.
Compared with prior art, in liquid crystal indicator provided by the present invention, because spacer is opaque, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte, then described spacer can block the light reflected by color membrane substrates.And from the structure of thin film transistor (TFT), there is gate line below the silicon island of described thin film transistor (TFT), identical with prior art, the light of backlight direct projection is blocked by gate line.Visible, compared with prior art, thin film transistor (TFT) disclosed in the present application can not be subject to the irradiation of color membrane substrates reflection and liquid crystal molecule scattered beam, effectively prevent the generation of liquid crystal indicator photogenerated leakage current, and then avoid the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
It is more than the core concept of the application, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
Present embodiment discloses a kind of liquid crystal indicator, as shown in Figure 1, comprising:
The array base palte be oppositely arranged and color membrane substrates, and the opaque spacer 10 between described array base palte and color membrane substrates.
Wherein, described array base palte comprises:
First transparency carrier 11, described first transparency carrier 11 is preferably glass substrate.
Gate line 12, described gate line 12 is positioned on the surface of described transparency carrier 11.Wherein, described gate line 12 is specifically divided into controlling grid scan line and grid.
First protective seam 13, described first protective seam 13 covers described gate line 12 and the first transparency carrier 11 on the surface, and described first protective seam 13 is transparent.
Silicon island 14, the making material of described silicon island 14 is amorphous silicon, be positioned at described first protective seam 13 on the surface, and described silicon island 14 is positioned at directly over the grid of described gate line 12.Visible, the light that the backlight of described liquid crystal indicator sends can be subject to blocking of gate line 12, can not shine directly on silicon island 14.
Data line 15, described data line 15 is positioned on the surface of described first protective seam 13 and silicon island 14, and described data line 15 is divided into two parts by the channel structure of silicon island 14.Described data line 15, gate line 12, first protective seam 13 and silicon island 14 constitute the thin film transistor (TFT) on described array base palte.
Second protective seam 16, described second protective seam 16 covers on the surface of described data line 15 and the first protective seam 13, is provided with contact hole in described second protective seam 16, and described second protective seam 16 is transparent.
Pixel electrode 17, described pixel electrode 17 is transparency electrode, and be preferably indium-tin oxide electrode or indium zinc oxide electrode, described pixel electrode is positioned at described second protective seam 16 on the surface, is electrically connected with described data line 15 by via hole.
Described color membrane substrates comprises:
Second transparency carrier 21, described second Benq's plate 21 is preferably glass substrate.
Black matrix" 20, described black matrix" 20 is arranged on described second transparency carrier 21 towards on the surface of described array base palte side, for blocking non-essential light leak in described liquid crystal indicator.
Color filter film 19, described color filter film 19 is positioned at described second transparency carrier 21 on the surface.
Common electrode 18, described common electrode 18 is transparency electrode, is positioned at described ink layer 19 on the surface.
Described spacer 10 is preferably black gap, and it makes material and comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.And as shown in Figure 1, described spacer is the spacer of column, the position between described array base palte and color membrane substrates, effectively can support the gap between described array base palte and color membrane substrates.
And described spacer 10 is positioned at the top of the thin film transistor (TFT) of described array base palte, as shown in Figure 1, described spacer 10 is positioned on the raceway groove of described silicon island 14 and the surface of the second protective seam 16.Liquid crystal molecule 22 is filled with in gap between described array base palte and color membrane substrates.
The then light that sends of described backlight, a part can be blocked by gate line 12; Another part successively through array base palte, liquid crystal molecule 22 and color membrane substrates, can become described liquid crystal indicator working light to display; Some light can through the scattering of the reflection of color membrane substrates and liquid crystal molecule, direction towards the silicon island 14 of thin film transistor (TFT) is penetrated, because the spacer 10 be arranged on above thin film transistor (TFT) is opaque, then the light of directive silicon island 14 can be stopped by spacer 10, make it cannot arrive silicon island 14, then effectively can avoid the generation of liquid crystal indicator photogenerated leakage current, the stability avoiding liquid crystal indicator work is subject to the impact of photogenerated leakage current.
Embodiment two:
Present embodiment discloses a kind of method for making of liquid crystal indicator, the method comprises:
Step S11, as shown in Figure 2, provide array base palte 101, described array base palte 101 comprises the first transparency carrier, gate line, the first protective seam, silicon island, data line, the second protective seam and pixel electrode.
Step S12, above the thin film transistor (TFT) of described array base palte, form spacer, described spacer is opaque spacer.
Concrete, form the process of spacer, comprising:
As shown in Figure 3, opaque photochromics is applied on the surface at described array base palte 101, form opaque layer 102, described opaque photochromics preferably comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
As shown in Figure 4, there is the mask plate 103 of spacer figure for mask, adopt ultraviolet to expose described opaque layer 102, described opaque layer 102 forms spacer pattern.
As shown in Figure 5, adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer 104, and described spacer 104 is positioned at above the thin film transistor (TFT) of described array base palte 101.
Step S13, oven dry.Specifically can the array base palte being formed with spacer be placed in baking oven, under the environment of 220 DEG C ~ 230 DEG C, carry out the baking of 30min, spacer be solidified stable.
Step S14, provide color membrane substrates, and fit described array base palte and color membrane substrates, filling liquid crystal molecule between described array base palte and color membrane substrates.
In liquid crystal indicator made by the method that the present embodiment provides, because spacer is opaque, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte, then described spacer can block the light reflected by color membrane substrates.And from the structure of thin film transistor (TFT), there is gate line below the silicon island of described thin film transistor (TFT), identical with prior art, the light of backlight direct projection is blocked by gate line.Visible, compared with prior art, thin film transistor (TFT) disclosed in the present application can not be subject to the irradiation of color membrane substrates reflection and liquid crystal molecule scattered beam, effectively prevent the generation of photogenerated leakage current, and then avoids the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
Embodiment three:
Present embodiment discloses the method for making of another kind of liquid crystal indicator, the method comprises:
Step S21, provide color membrane substrates, described color membrane substrates comprises the second transparency carrier, black matrix", ink layer and common electrode.
Step S22, form spacer on the surface at described color membrane substrates, described spacer is opaque spacer.
Concrete, form the process of spacer, comprising:
Opaque photochromics is applied on the surface at described color membrane substrates, form opaque layer, described opaque photochromics preferably comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
There is the mask plate of spacer figure for mask, described opaque layer is exposed, described opaque layer is formed spacer pattern.
Adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer, and the distribution of described spacer is corresponding with the distribution of the thin film transistor (TFT) of array base palte.
Step S23, oven dry.Specifically can the color membrane substrates being formed with spacer be placed in baking oven, under the environment of 220 DEG C ~ 230 DEG C, carry out the baking of 30min, spacer be solidified stable.
Step S24, provide array base palte, and fit described array base palte and color membrane substrates, make described spacer corresponding with the thin film transistor (TFT) of described array base palte, namely described spacer is positioned at the top of described thin film transistor (TFT).Afterwards, filling liquid crystal molecule between described array base palte and color membrane substrates.
In liquid crystal indicator made by the method that the present embodiment provides, because spacer is opaque, and described spacer is positioned on the surface of the thin film transistor (TFT) of described array base palte, then described spacer can block the light reflected by color membrane substrates.And from the structure of thin film transistor (TFT), there is gate line below the silicon island of described thin film transistor (TFT), identical with prior art, the light of backlight direct projection is blocked by gate line.Visible, compared with prior art, thin film transistor (TFT) disclosed in the present application can not be subject to the irradiation of color membrane substrates reflection and liquid crystal molecule scattered beam, effectively prevent the generation of photogenerated leakage current, and then avoids the stability of liquid crystal indicator work to be subject to the impact of photogenerated leakage current.
In this instructions, various piece adopts the mode of going forward one by one to describe, and what each some importance illustrated is the difference with other parts, between various piece identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized maybe will use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a liquid crystal indicator, is characterized in that, comprising:
The array base palte be oppositely arranged and color membrane substrates, and the opaque spacer between described array base palte and color membrane substrates, and described spacer is positioned at the top of the thin film transistor (TFT) of described array base palte;
Described opaque spacer is for blocking the light reflected by color membrane substrates;
Described spacer is black gap;
The making material of described spacer comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
2. liquid crystal indicator according to claim 1, it is characterized in that, described spacer is the spacer of column.
3. a method for making for liquid crystal indicator, is characterized in that, comprising:
Array base palte is provided;
Above the thin film transistor (TFT) of described array base palte, form spacer, described spacer is opaque spacer;
Color membrane substrates is provided, and fit described array base palte and color membrane substrates;
Described opaque spacer is for blocking the light reflected by color membrane substrates;
The process of described formation spacer, comprising:
Apply opaque photochromics on the surface at described array base palte, form opaque layer;
There is the mask plate of spacer figure for mask, described opaque layer is exposed, described opaque layer is formed spacer pattern;
Adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer, and described spacer is positioned at above the thin film transistor (TFT) of described array base palte;
Dry;
Described opaque photochromics comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
4. a method for making for liquid crystal indicator, is characterized in that, comprising:
Color membrane substrates is provided;
Form spacer on the surface at described color membrane substrates, described spacer is opaque spacer;
Array base palte is provided, and fit described array base palte and color membrane substrates, and described spacer is corresponding with the thin film transistor (TFT) of described array base palte;
Described opaque spacer is for blocking the light reflected by color membrane substrates;
The process of described formation spacer, comprising:
Apply opaque photochromics on the surface at described color membrane substrates, form opaque layer;
There is the mask plate of spacer figure for mask, described opaque layer is exposed, described opaque layer is formed spacer pattern;
Adopt developing process, remove the opaque photochromics outside described spacer pattern, form spacer, and the distribution of described spacer is corresponding with the distribution of the thin film transistor (TFT) of described array base palte;
Dry;
Described opaque photochromics comprises photosensitive acrylics 12% ~ 25%, photonasty acrylic monomers 10% ~ 25%, emulsion 2% ~ 10%, stabilizing agent 0.3% ~ 2%, propylene glycol monomethyl ether ester 50% ~ 70% and carbon black 3% ~ 8%.
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Cited By (1)
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| CN109727587A (en) * | 2019-02-22 | 2019-05-07 | 深圳市华星光电半导体显示技术有限公司 | Improve the liquid crystal display that backlighting frequency variation causes bright blanking bar |
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| CN104062845A (en) * | 2014-05-23 | 2014-09-24 | 京东方科技集团股份有限公司 | Lower substrate, manufacturing method of lower substrate and liquid crystal lens |
| CN104730779A (en) * | 2015-04-17 | 2015-06-24 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| CN104932152B (en) * | 2015-06-23 | 2018-11-02 | 武汉华星光电技术有限公司 | The manufacturing method of liquid crystal display panel and liquid crystal display panel |
| CN106773241A (en) * | 2016-12-20 | 2017-05-31 | 武汉华星光电技术有限公司 | Liquid crystal panel and liquid crystal display |
| CN107247358A (en) * | 2017-06-28 | 2017-10-13 | 上海天马微电子有限公司 | Display panel and display device |
| CN107505778B (en) * | 2017-07-20 | 2020-05-12 | 深圳市华星光电半导体显示技术有限公司 | Display and manufacturing process thereof |
| CN113552736B (en) | 2020-04-23 | 2024-01-30 | 中强光电股份有限公司 | Electric control visual angle switcher and display device |
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