CN102636914A - Liquid crystal display device and color film base plate - Google Patents
Liquid crystal display device and color film base plate Download PDFInfo
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- CN102636914A CN102636914A CN2011102231242A CN201110223124A CN102636914A CN 102636914 A CN102636914 A CN 102636914A CN 2011102231242 A CN2011102231242 A CN 2011102231242A CN 201110223124 A CN201110223124 A CN 201110223124A CN 102636914 A CN102636914 A CN 102636914A
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Abstract
The invention provides a liquid crystal display device and a color film base plate. The liquid crystal display device comprises a first base plate, a second base plate, frame-sealing glue and a plurality of spacers, wherein the first base plate and the second base plate are opposite to each other, liquid crystals are filled between the first base plate and the second base plate; the frame-sealing glue is respectively coated in a peripheral areas of the first base plate and the second base plate, the first ends of the spacers are arranged on the first base plate, and the second ends of the spacers abut against the second base plate; and the distance between two adjacent spacers is smaller than or equal to the sum of expansion distances of the two adjacent spacers when the two adjacent spacers are heated, so that the liquid crystals are arranged in a sealed space formed by the plurality of spacers, the first base plate and the second base plate when the temperature of the liquid crystal display device is higher than a preset temperature. Through adoption of the technical scheme, gravity mura and problems of pollution and breakage of the frame-sealing glue caused by the gravity mura can be reduced.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of liquid crystal indicator and color membrane substrates.
Background technology
Along with social progress and development in science and technology, Thin Film Transistor-LCD (TFT-LCD) has become the main product that current era shows the field, in commercial production, daily life, has played crucial effects, more and more receives people's favor.
Under normal environment for use; LCD can be brought into play excellent display effect and performance, still, and when LCD is used in (like high temperature) under the specific environment; Then can produce bad phenomenon, wherein the gravity mura (Mu La) under the high temperature is exactly a kind of common bad phenomenon.Gravity mura is meant that the uneven phenomenon of look appears in LCDs lower limb when high temperature is switched on, and it is too much to be generally amount of liquid crystal, and liquid crystal sinks and causes under gravity and high temperature action.When LCD was heated, thermal expansion effects can take place in folded liquid crystal between color membrane substrates (CF colored filter) and Array (array) substrate, like this; Liquid crystal will initiatively spread to the edge of liquid crystal panel, but because the volume of liquid crystal cell itself is certain, like this; Liquid crystal will produce gathering by the part in liquid crystal cell, makes the liquid crystal skewness in the whole liquid crystal panel, and then influences display effect; Here it is gravity mura, when gravity mura was serious, liquid crystal will be constantly to the diffusion of the edge of liquid crystal panel; When the envelope frame glue of liquid crystal and face plate edge is in contact with one another; Will produce the pollution or the fracture of envelope frame glue of envelope frame glue, when above-mentioned situation takes place, LCD then can not continue to use.
Summary of the invention
The technical matters that the present invention will solve provides a kind of liquid crystal indicator and color membrane substrates, can effectively reduce gravity mura and by gravity mura caused envelope frame glue stain and envelope frame glue breakage problem.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of liquid crystal indicator, comprising:
First substrate that is oppositely arranged and second substrate;
Be filled with liquid crystal between said first substrate and said second substrate;
The envelope frame glue that the outer peripheral areas of said first substrate and said second substrate applies; And
A plurality of chock insulator matters, first end of said chock insulator matter are arranged on said first substrate, and second end of said chock insulator matter is connected to said second substrate;
The spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating; When making the temperature of said liquid crystal indicator be higher than a preset temperature, said liquid crystal is in the enclosure space that said a plurality of chock insulator matter and said first substrate and said second substrate form.
Wherein, The expansion distance of the arbitrary chock insulator matter expanded by heating in said adjacent two chock insulator matters equals thermal expansivity and the diameter of said chock insulator matter and the product of a temperature difference of said chock insulator matter, and the said temperature difference is the poor of the current working temperature of living in of the said chock insulator matter temperature corresponding with said thermal expansivity.
Wherein, the material of said adjacent two chock insulator matters is identical.
Wherein, said material coefficient of thermal expansion coefficient is greater than the thermal expansivity of polymethylmethacrylate and/or polycarbonate.
Wherein, said material comprises: high-impact polystyrene, low density polyethylene, linear low density polyethylene, UHMW polyethylene or flexible macromolecule elastic body.
Wherein, said first substrate is a color membrane substrates, and said chock insulator matter is along the black matrix" setting of said color membrane substrates.
Wherein, said chock insulator matter is provided with around one or more pixel region on said black matrix", forms a chock insulator matter unit.
Wherein, said second substrate is an array base palte, and second end of said chock insulator matter is connected on the grid line and data line of said array base palte.
Wherein, said chock insulator matter is that the cross section is circular or square or polygonal cylindrical spacer.
Embodiments of the invention also provide a kind of color membrane substrates, and said color membrane substrates is provided with a plurality of chock insulator matters, and the spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating.
The beneficial effect of technique scheme of the present invention is following:
In the such scheme; When liquid crystal indicator was at high temperature worked, chock insulator matter produced thermal expansion, and the chock insulator matter diameter can increase; Because the spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating; Adjacent chock insulator matter can be in contact with one another, and then form the space of a sealing with first substrate and second substrate, liquid crystal tightly is locked in this space; Expansion after liquid crystal molecule so wherein is heated, diffusion also can be inhibited; Just can around whole front panel (panel that above-mentioned first substrate and second substrate form), not spread, liquid crystal just can not touch the envelope frame glue that solidifies in panel periphery, and then has just reduced gravity mura bad and envelope frame glue stain and breakage problem.
Description of drawings
Fig. 1 is the frame diagram of embodiments of the invention liquid crystal indicator;
Fig. 2 is the vertical view of color membrane substrates shown in Figure 1;
Fig. 3 forms a chock insulator matter unit, the wherein synoptic diagram behind the chock insulator matter expanded by heating for chock insulator matter shown in Figure 1 is provided with around a red pixel area;
Fig. 4 is the chock insulator matter shown in Figure 1 figure that is provided with around chock insulator matter unit that neighbouring two red pixel area form;
Fig. 5 is the synoptic diagram behind the chock insulator matter expanded by heating shown in Figure 4.
[main element symbol description]
11: the first substrates
21: the second substrates
31: liquid crystal
41: envelope frame glue
12: chock insulator matter
13: red/green/blue pixel region
14: black matrix"
Embodiment
For technical matters, technical scheme and advantage that the present invention will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
The present invention is directed in the prior art; When gravity mura is serious, when the envelope frame glue at liquid crystal and liquid crystal panel edge is in contact with one another, will produce the glue stain of envelope frame; When envelope frame glue receives the serious extruding of liquid crystal; The problem of frame glue fracture then can occur sealing, a kind of liquid crystal indicator and color membrane substrates are provided, can effectively reduce gravity mura and by the problem of gravity mura caused envelope frame glue stain and fracture.
As shown in Figure 1, the frame diagram of liquid crystal indicator of the present invention, this liquid crystal indicator comprises: first substrate 11 that is oppositely arranged and second substrate 21; Be filled with liquid crystal 31 between first substrate 11 and second substrate 21; The envelope frame glue 41 that applies in the outer peripheral areas of first substrate 11 and second substrate 21; And a plurality of chock insulator matters 12, first end of said chock insulator matter 12 is arranged on said first substrate 11, and second end of said chock insulator matter is connected to said second substrate 21; Wherein, The spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating; When making the temperature of said liquid crystal indicator be higher than a preset temperature, said liquid crystal is in the enclosure space that said a plurality of chock insulator matter and said first substrate and said second substrate form.
When above-mentioned liquid crystal indicator of the present invention is at high temperature worked; Chock insulator matter produces thermal expansion; The chock insulator matter diameter can increase, because the spacing distance between adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating, adjacent chock insulator matter can be in contact with one another; And then form an enclosure space with first substrate and second substrate; Liquid crystal tightly is locked in this space, and the expansion after liquid crystal molecule so wherein is heated, diffusion also can be inhibited, and just can around whole front panel (panel that above-mentioned first substrate and second substrate form), not spread; Liquid crystal just can not touch the envelope frame glue that solidifies in panel periphery, and then has just reduced pollution, the fracture of the bad and envelope frame glue of gravity mura.
In the above-described embodiments; The expansion distance of the arbitrary chock insulator matter expanded by heating in said adjacent two chock insulator matters equals thermal expansivity and the diameter of said chock insulator matter and the product of a temperature difference of said chock insulator matter, and the said temperature difference is the poor of the current working temperature of living in of the said chock insulator matter temperature corresponding with said thermal expansivity.
Further, the material of said adjacent two chock insulator matters is identical; Said material coefficient of thermal expansion coefficient is greater than the thermal expansivity of polymethylmethacrylate and/or polycarbonate.
Preferably, said material comprises: the polymkeric substance of high hot expansion systems such as high-impact polystyrene, low density polyethylene, linear low density polyethylene, UHMW polyethylene or flexible macromolecule elastic body.
Certainly; The material of adjacent two chock insulator matters also can be different; As wherein a chock insulator matter adopts low density polyethylene; Another chock insulator matter adopts UHMW polyethylene; At this moment, the expansion distance of the first chock insulator matter expanded by heating in said adjacent two chock insulator matters equals first thermal expansivity (like the thermal expansivity of low density polyethylene) and the diameter of said first chock insulator matter and the product of first temperature difference of said first chock insulator matter, and said first temperature difference is the poor of the current working temperature of living in of said first chock insulator matter temperature corresponding with said first thermal expansivity;
The expansion distance of the second chock insulator matter expanded by heating in said adjacent two chock insulator matters equals second thermal expansivity (like the thermal expansivity of UHMW polyethylene) and the diameter of said second chock insulator matter and the product of second temperature difference of said second chock insulator matter, and said second temperature difference is the poor of the current working temperature of living in of said second chock insulator matter temperature corresponding with said second thermal expansivity;
Certainly, the computing method of the expansion distance of this first, second chock insulator matter also are applicable to two situation that the chock insulator matter material is identical.
Generally speaking; Chock insulator matter (PS) is a material with polymethylmethacrylate (PMMA) or polycarbonate (PC) generally; And employed chock insulator matter (PS) is the polymkeric substance formation with high thermal expansion coefficient in the embodiments of the invention, like high thermal expansion coefficient macromolecular materials such as high-impact polystyrene (HIPS), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), UHMW polyethylene (HDPE), flexible macromolecule elastic bodys.
Chock insulator matter (PS) as processing with low density polyethylene (LDPE) is an example:
The thermal expansivity of LDPE under 20 ℃ is 20 * 10
-5/ ℃; When the diameter of chock insulator matter (PS) is 3 μ m, when liquid crystal indicator used under 60 ℃ temperature, then its expansion distance then equaled thermal expansivity (CTE) * chock insulator matter diameter (D) * first temperature difference=20 * 10
-5/ ℃ * 3 μ m * (60 ℃-20 ℃)=0.024 μ m; So, when adopt diameter be the low density polyethylene of 3 μ m process chock insulator matter the time, then can be closed down when the spacing distance between the chock insulator matter that the present invention designed is 0.048 micron 60 ℃ (this temperature is above-mentioned preset temperature); And then tightly lock liquid crystal; Suppress the thermal expansion of its folded liquid crystal, and then reduce the generation of gravity mura, thereby reduce the danger of glue stain of all banding frames and fracture.
The chock insulator matter of processing with high impact resistance polypropylene (LDPE) again (PS) is an example:
The thermal expansivity of LDPE under 20 ℃ is 21 * 10
-5/ ℃, when the diameter of chock insulator matter (PS) was 2.5 μ m, when LCD used under 70 ℃ temperature, then its expansion distance then equaled thermal expansivity (CTE) * chock insulator matter diameter (D) * second temperature difference=21 * 10
-5/ ℃ * 2.5 μ m * (70 ℃-20 ℃)=0.026 μ m; So, when adopt diameter be the high impact resistance polypropylene of 2.5 μ m process chock insulator matter the time, then can be closed down when the spacing distance between the chock insulator matter that the present invention designed is 0.052 μ m 70 ℃ (this temperature is above-mentioned preset temperature); And then tightly lock liquid crystal; Suppress the thermal expansion of its folded liquid crystal, and then reduce the generation of gravity mura, thereby reduce the danger of glue stain of all banding frames and fracture.
Preferably; Fig. 1, shown in Figure 2 for another example; Said first substrate is color membrane substrates (a CF substrate), and said chock insulator matter 12 is provided with along the black matrix" 14 of said color membrane substrates, has certain clearance between the chock insulator matter; Form matrix form (shown in Figure 2), in the embodiments of the invention such matrix form is called the chock insulator matter unit.When liquid crystal indicator when the normal temperature attitude is worked, it is thick that the chock insulator matter unit mainly works to keep liquid crystal cell, when the condition of high temperature; Chock insulator matter expands, and is in contact with one another between the chock insulator matter, forms an enclosure space; Liquid crystal is locked in this enclosure space, liquid crystal is restricted in expansion, can not touch envelope frame glue; Reduce the generation of gravity mura, thereby reduce the danger of glue stain of all banding frames and fracture.
Specifically, said chock insulator matter is provided with around one or more pixel region on said black matrix" 14, forms a chock insulator matter unit; Wherein, pixel region 13 comprises red pixel area, green pixel zone and/or blue pixel area, wherein; Said chock insulator matter is around a red pixel area or a green pixel zone or a blue pixel area setting; Form a chock insulator matter unit, when LCD was at high temperature worked, chock insulator matter produced thermal expansion; Be clipped in liquid crystal in upper and lower base plate and the chock insulator matter unit by its tight lock; Can suppress the wherein thermal expansion of liquid crystal, and then reduce the generation of gravity mura, thereby reduce the danger of glue stain of all banding frames and fracture.
Said chock insulator matter can also center on neighbouring pixel region setting; Like adjacent two red pixel area/green pixel zone/blue pixel area setting up and down; Form a chock insulator matter unit (as shown in Figure 4), also can be around neighbouring three, four, five ... individual red pixel area/green pixel zone/blue pixel area setting forms a chock insulator matter unit; When working under the liquid crystal indicator condition of high temperature that Fig. 5 is, the swelling state of chock insulator matter; When LCD is at high temperature worked; Chock insulator matter produces thermal expansion, is clipped in liquid crystal in upper and lower base plate and the chock insulator matter unit by its tight lock, can suppress the wherein thermal expansion of liquid crystal; And then reduce the generation of gravity mura, thereby reduce the danger of glue stain of all banding frames and fracture.
Said chock insulator matter can also adjacent pixel region be provided with around the left and right sides, forms a chock insulator matter unit (not looking out among the figure); Form the chock insulator matter unit like chock insulator matter around adjacent 2 pixel regions in the left and right sides (comprising adjacent red pixel area and green pixel zone)/(adjacent green pixel zone and blue pixel area)/(adjacent blue pixel area and red pixel area); Also can be that 3 pixel regions (comprise red, green, blue pixel region) adjacent around the left and right sides are provided with; Form a chock insulator matter unit; Certainly can also be around the left and right sides adjacent four, five, six ... individual pixel region setting forms a chock insulator matter unit; When LCD is at high temperature worked; Chock insulator matter produces thermal expansion, is clipped in liquid crystal in upper and lower base plate and the chock insulator matter unit by its tight lock, can suppress the wherein thermal expansion of liquid crystal; And then reduce the generation of gravity mura, thereby reduce the danger of all banding frames glue stain.
Chock insulator matter of the present invention can also be around red/green/blue pixel region up and down at a distance from delegation/two row/triplex rows ... form the chock insulator matter unit; When LCD is at high temperature worked; Chock insulator matter produces thermal expansion, is clipped in liquid crystal in upper and lower base plate and the chock insulator matter unit by its tight lock, can suppress the wherein thermal expansion of liquid crystal; And then reduce the generation of gravity mura, thereby reduce the danger of all banding frames glue stain.
In a word, chock insulator matter of the present invention can be around one or more pixel region setting arbitrarily, forms the chock insulator matter unit.
In addition, in the above embodiment of the present invention, said second substrate is an array base palte, and second end of said chock insulator matter is connected on the grid line (Gate) and data (Data) line of said array base palte, and is thick with the box of keeping liquid crystal indicator.
Preferably, in the above embodiment of the present invention, said chock insulator matter is that the cross section is circular or square or polygonal cylindrical spacer; Be to be example with the round section among Fig. 1-Fig. 5; Can also be that the cross section is square or polygonal cylindrical spacer, wherein, when the cross section is polygon; Should be that adjacent two corresponding limits of chock insulator matter can overlap fully, can form enclosure space with first substrate and second substrate in the time of can guaranteeing like this to contact behind two adjacent chock insulator matter expanded by heating.
Fig. 1-shown in Figure 5 for another example, embodiments of the invention also provide a kind of color membrane substrates, and said color membrane substrates is provided with a plurality of chock insulator matters, and the spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating.
This color membrane substrates is applied to comprise the liquid crystal indicator of array base palte; Said array base palte and said color membrane substrates are oppositely arranged; When the temperature of said liquid crystal indicator is higher than a preset temperature, is in liquid crystal between said color membrane substrates and the said array base palte and is in the enclosure space that said a plurality of chock insulator matter and said color membrane substrates and said array base palte form.
Further, the material of said adjacent two chock insulator matters is identical; Said material coefficient of thermal expansion coefficient is greater than the thermal expansivity of polymethylmethacrylate and/or polycarbonate.
Preferably, said material comprises: high-impact polystyrene, low density polyethylene, linear low density polyethylene, UHMW polyethylene or flexible macromolecule elastic body.
The set-up mode of the chock insulator matter unit in the above-mentioned liquid crystal indicator is equally applicable to also can reach identical technique effect among the embodiment of this color membrane substrates, repeats no more at this.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle according to the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. liquid crystal indicator comprises:
First substrate that is oppositely arranged and second substrate;
Be filled with liquid crystal between said first substrate and said second substrate;
The envelope frame glue that the outer peripheral areas of said first substrate and said second substrate applies; And
A plurality of chock insulator matters, first end of said chock insulator matter are arranged on said first substrate, and second end of said chock insulator matter is connected to said second substrate; It is characterized in that,
The spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating; When making the temperature of said liquid crystal indicator be higher than a preset temperature, said liquid crystal is in the enclosure space that said a plurality of chock insulator matter and said first substrate and said second substrate form.
2. liquid crystal indicator according to claim 1; It is characterized in that; The expansion distance of the arbitrary chock insulator matter expanded by heating in said adjacent two chock insulator matters equals thermal expansivity and the diameter of said chock insulator matter and the product of a temperature difference of said chock insulator matter, and the said temperature difference is the poor of the current working temperature of living in of the said chock insulator matter temperature corresponding with said thermal expansivity.
3. liquid crystal indicator according to claim 2 is characterized in that the material of said adjacent two chock insulator matters is identical.
4. liquid crystal indicator according to claim 3 is characterized in that, said material coefficient of thermal expansion coefficient is greater than the thermal expansivity of polymethylmethacrylate and/or polycarbonate.
5. liquid crystal indicator according to claim 4 is characterized in that, said material comprises: high-impact polystyrene, low density polyethylene, linear low density polyethylene, UHMW polyethylene or flexible macromolecule elastic body.
6. according to each described liquid crystal indicator of claim 1-5, it is characterized in that said first substrate is a color membrane substrates, said chock insulator matter is along the black matrix" setting of said color membrane substrates.
7. liquid crystal indicator according to claim 6 is characterized in that, said chock insulator matter is provided with around one or more pixel region on said black matrix", forms a chock insulator matter unit.
8. liquid crystal indicator according to claim 1 is characterized in that, said second substrate is an array base palte, and second end of said chock insulator matter is connected on the grid line and data line of said array base palte.
9. liquid crystal indicator according to claim 1 is characterized in that, said chock insulator matter is that the cross section is circular or square or polygonal cylindrical spacer.
10. a color membrane substrates is characterized in that,
Said color membrane substrates is provided with a plurality of chock insulator matters, and the spacing distance of adjacent two chock insulator matters is less than or equal to the expansion distance sum of said adjacent two chock insulator matter expanded by heating.
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| CN201110223124.2A CN102636914B (en) | 2011-08-04 | 2011-08-04 | Liquid crystal display device and color film base plate |
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| CN201110223124.2A CN102636914B (en) | 2011-08-04 | 2011-08-04 | Liquid crystal display device and color film base plate |
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| CN102636914A true CN102636914A (en) | 2012-08-15 |
| CN102636914B CN102636914B (en) | 2014-09-10 |
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| CN103163690A (en) * | 2011-12-15 | 2013-06-19 | 三菱电机株式会社 | Liquid crystal display device |
| CN104166276A (en) * | 2014-07-24 | 2014-11-26 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN106371254A (en) * | 2016-10-28 | 2017-02-01 | 上海中航光电子有限公司 | Array substrate and display panel |
| CN112327543A (en) * | 2020-11-05 | 2021-02-05 | Tcl华星光电技术有限公司 | Liquid crystal display panel, preparation method thereof and liquid crystal display device |
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| CN112327543A (en) * | 2020-11-05 | 2021-02-05 | Tcl华星光电技术有限公司 | Liquid crystal display panel, preparation method thereof and liquid crystal display device |
| CN112327543B (en) * | 2020-11-05 | 2022-04-01 | Tcl华星光电技术有限公司 | Liquid crystal display panel, preparation method thereof and liquid crystal display device |
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| CN102636914B (en) | 2014-09-10 |
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