CN204945580U - A kind of liquid crystal display - Google Patents
A kind of liquid crystal display Download PDFInfo
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- CN204945580U CN204945580U CN201520804820.6U CN201520804820U CN204945580U CN 204945580 U CN204945580 U CN 204945580U CN 201520804820 U CN201520804820 U CN 201520804820U CN 204945580 U CN204945580 U CN 204945580U
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- circuit board
- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 47
- 238000009826 distribution Methods 0.000 claims abstract description 90
- 239000000758 substrate Substances 0.000 claims abstract description 87
- 239000012212 insulator Substances 0.000 claims abstract 3
- 125000006850 spacer group Chemical group 0.000 claims description 121
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 29
- 238000010586 diagram Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model provides a kind of liquid crystal display, relates to display technique field, the problem of caused circuit board and array base palte generation warpage during for solving the binding carrying out circuit board.Wherein said liquid crystal display has viewing area and rim area, and described liquid crystal display comprises the array base palte and color membrane substrates that are oppositely arranged, and is arranged at multiple main chock insulator matter therebetween, and the edge binding of described array base palte has circuit board; Have changes in distribution region in described liquid crystal display, described changes in distribution region is positioned at the periphery of described circuit board, the distribution density of described main chock insulator matter part between the distribution density in described changes in distribution region is greater than in the display area.Foregoing liquid crystal display is used for carrying out picture display.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a liquid crystal display.
Background
In the manufacturing process of the liquid crystal display, after the box aligning process, the whole glass is cut into individual panel units, as shown in fig. 1, each individual panel unit includes an array substrate 1 and a color film substrate 2 which are oppositely arranged, and one end of the array substrate 1 is exposed and used for binding a circuit board 3.
As shown in fig. 2, fig. 2 is a cross-sectional view of fig. 1 along a dotted line PP', when the circuit board 3 is bonded, the array substrate 1 is directly contacted with the base 4, the circuit board 3 is adhered to the bonding area of the array substrate 1 by using an Anisotropic Conductive Film (ACF) 5, then the circuit board 3 is hot pressed by a hot press head 6 with high temperature, the anisotropic conductive film 5 is melted by the heat, and then the hot press head 6 is removed to solidify the anisotropic conductive film 5, so that the circuit board 3 is firmly fixed on the array substrate 1.
In the hot pressing process, the heat conduction path is as follows: the thermal head 6 → the circuit board 3 → the anisotropic conductive film 5 → the array substrate 1 → the base 4, and the temperature difference between the thermal head 6 and the base 4 is large, which causes the expansion dimension of the circuit board 3 directly contacting the thermal head 6 to be larger than the expansion dimension of the array substrate 1 directly contacting the base 4, so that the circuit board 3 and the array substrate 1 are cooled during the subsequent curing of the anisotropic conductive film 5, and the contraction dimension of the circuit board 3 is larger than the contraction dimension of the array substrate 1, resulting in the warpage of the circuit board 3 and the array substrate 1 as shown in fig. 3. The warping may change the distance between the array substrate 1 and the color film substrate 2 at the periphery of the bonding area, which may cause a color displayed at the periphery of the bonding area to change to some extent, thereby causing a mura phenomenon and affecting the display quality of the picture.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect among the above-mentioned prior art, the utility model provides a liquid crystal display to the solution carries out circuit board and array substrate that arouses when tying up of circuit board and takes place warping problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a liquid crystal display, which is provided with a display area and a frame area, wherein the liquid crystal display comprises an array substrate and a color film substrate which are oppositely arranged, and a plurality of main spacers arranged between the array substrate and the color film substrate, and a circuit board is bound at the edge of the array substrate; the liquid crystal display is provided with a distribution change area which is positioned at the periphery of the circuit board, and the distribution density of the main spacer in the distribution change area is larger than that in the middle part of the display area.
In the liquid crystal display provided by the utility model, the distribution change area is arranged at the periphery of the circuit board, so that the distribution density of the main spacer in the distribution change area is greater than that in the middle part of the display area; the distribution density of the main spacers in the prior art is uniform in the liquid crystal display, that is, the distribution density of the main spacers in the prior art around the circuit board is equal to the distribution density in the middle of the display area; generally, the distribution density of the main spacers in the lcd is fixed in the middle of the display area, so that the distribution density of the main spacers in the lcd of the present invention in the middle of the display area is the same as that in the prior art; therefore, compared with the prior art, the distribution density of the main spacer in the specific area (i.e. the distribution change area) around the circuit board is increased. Because main spacer offsets or fixes on array substrate with array substrate, therefore when the circuit board binds in-process circuit board and array substrate and takes place the warpage, the supporting force opposite with the warpage direction can be applyed to the array substrate of warpage to the peripheral main spacer of circuit board, thereby the utility model discloses in through the distribution density of increase main spacer in the peripheral specific area of circuit board, can strengthen the supporting force opposite with the warpage direction that the peripheral main spacer of circuit board was applyed to the array substrate of warpage, and then prevent circuit board and array substrate from taking place the warpage to a great extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic plan view of a prior art LCD;
FIG. 2 is a diagram illustrating a prior art LCD with circuit boards bonded together;
FIG. 3 is a diagram illustrating a prior art LCD with circuit boards bonded;
fig. 4 is a schematic view of a first planar structure of an lcd according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure diagram of a liquid crystal display according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a second plane structure of the liquid crystal display according to the embodiment of the present invention;
fig. 7 is a schematic view of a third plane structure of an lcd according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a fourth planar structure of an lcd according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a fifth plane structure of an lcd according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a sixth plane structure of an lcd according to an embodiment of the present invention.
Description of reference numerals:
1-an array substrate; 2-a color film substrate;
3-a circuit board; 4-base station;
5-anisotropic conductive film; 6-hot pressing head;
7-a primary spacer; 8-auxiliary spacer;
AA-display area; BB-frame area;
CC-distribution variation region.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is obvious that the described embodiments are only some, not all embodiments of the proposed solution. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The present embodiment provides a liquid crystal display, as shown in fig. 4 and 5, where fig. 5 is a cross-sectional view of fig. 4 along a dotted line PP', the liquid crystal display has a display area AA and a frame area BB, the liquid crystal display includes an array substrate 1 and a color film substrate 2 that are oppositely disposed, and a plurality of main spacers 7 disposed therebetween, and a circuit board 3 is bound to an edge of the array substrate 1. The liquid crystal display has a distribution variation area CC located at the periphery of the circuit board 3, and the distribution density of the main spacers 7 in the distribution variation area CC is greater than that in the middle of the display area AA.
In the above liquid crystal display, the distribution density of the main spacers 7 in the distribution variation area CC, which is located at the periphery of the circuit board 3, is greater than the distribution density in the middle of the display area AA, that is, the distribution density of the main spacers 7 in a specific area (i.e., the distribution variation area CC) at the periphery of the circuit board 3 is greater than the distribution density in the middle of the display area AA. The distribution density of the main spacers in the prior art is uniform in the liquid crystal display, that is, the distribution density of the main spacers in the prior art around the circuit board is equal to the distribution density in the middle of the display area; in addition, the distribution density of the main spacer in the middle of the display area is generally fixed, and it can be considered that the distribution density of the main spacer in the middle of the display area is the same as that in the prior art. Therefore, compared with the prior art, the distribution density of the main spacer 7 in the peripheral specific area of the circuit board 3 is increased.
Because the main spacer 7 is abutted against the array substrate 1 or fixed on the array substrate 1, when the circuit board 3 and the array substrate 1 warp in the binding process of the circuit board 3, the main spacer 7 around the circuit board 3 can apply a supporting force opposite to the warping direction to the warped array substrate 1. The utility model discloses in through the distribution density of increase main spacer 7 in the peripheral specific area of circuit board 3, the quantity of the peripheral main spacer 7 of circuit board 3 has been increased, thereby strengthened the supporting force opposite with the warpage direction that 3 peripheral main spacers 7 of circuit board were applyed to warped array substrate 1, array substrate 1 has been prevented to great extent from taking place the warpage, because circuit board 3 is pasted together with array substrate 1, just also prevented that circuit board 3 from taking place the warpage, and then eliminated the mu that arouses by circuit board 3 and array substrate 1 warpage and drawn the phenomenon, the picture display quality has been improved.
Referring to fig. 5 again, the liquid crystal display provided in this embodiment may further include a plurality of sub spacers 8 in addition to the main spacer 7, and the height of the sub spacers 8 in the middle area of the display area AA is smaller than the height of the main spacer 7, so that when the liquid crystal display is pressed, the sub spacers and the main spacer 7 provide a supporting force for the liquid crystal display, thereby improving the pressure resistance of the liquid crystal display, and simultaneously maintaining a certain liquid crystal fluctuation amount in the liquid crystal cell.
The height of the secondary spacers 8 of the distribution change area CC may also be smaller than the height of the primary spacers 7. Under the precondition:
(1) the height of the sub spacer 8 in the distribution change area CC may be greater than the height of the sub spacer 8 in the middle area of the display area AA to improve the supporting strength of the sub spacer in the distribution change area CC to the array substrate 1, thereby further preventing the array substrate 1 and the circuit board 3 from warping.
(2) In the distribution change area CC, a protrusion may be provided on the substrate opposite to the substrate (the color filter substrate 2 or the array substrate 1) to which the sub spacer 8 is attached, and the protrusion abuts against the sub spacer 8 to compensate for the height of the sub spacer 8, and enhance the supporting effect of the sub spacer on the array substrate 1 in the distribution change area CC, thereby further preventing the array substrate 1 and the circuit board 3 from warping.
(3) The height of the sub spacers 8 in the distribution variation area CC may be equal to the height of the sub spacers 8 in the middle area of the display area AA, so that the sub spacers 8 in each area of the liquid crystal display can be formed simultaneously, and the process steps are simplified.
The height of the secondary spacers 8 in the distribution variation area CC may also be equal to the height of the main spacers 7, so as to increase the supporting strength of the spacers in the distribution variation area CC to the array substrate 1 to a greater extent.
In order to further improve the supporting strength of the spacers on the array substrate 1 in the distribution change area CC and prevent the array substrate 1 and the circuit board 3 from warping, in the distribution change area CC, the height of the auxiliary spacers 8 can be gradually reduced in the direction radiating outward with the main spacers 7 as the center, so that the height of the spacers is gradually reduced to the periphery with the main spacers 7 as the center, a larger buffering effect is provided for the liquid crystal display when being pressed, and the supporting strength of the spacers on the array substrate 1 is improved.
In order to further improve the supporting strength of the spacers on the array substrate 1 in the distribution change area CC and prevent the array substrate 1 and the circuit board 3 from warping, in the distribution change area CC, in the direction from the display area AA to the circuit board 3, the distribution density of the main spacers 7 and/or the sub spacers 8 may be gradually increased, so that the supporting force provided by the spacers in the area closer to the circuit board 3 is larger, and the change of the supporting force is gradually transited, thereby improving the supporting strength of the spacers on the array substrate 1. In addition, in the distribution change region CC, the height of the main spacer 7 and/or the sub spacer 8 may be gradually increased in the direction from the display area AA to the circuit board 3, which is also beneficial to improving the supporting strength of the spacers on the array substrate 1.
In order to further improve the supporting strength of the spacers in the distribution change region CC on the array substrate 1 and prevent the array substrate 1 and the circuit board 3 from warping, the top area of the main spacers 7 in the distribution change region CC may be larger than or equal to the top area of the main spacers 7 in the middle portion of the display area AA, and the supporting strength of the main spacers 7 in the distribution change region CC may be improved by increasing the top area of the main spacers 7 in the distribution change region CC. In the same way, the supporting strength of the sub spacer 8 can be improved by increasing the top area of the sub spacer 8 of the distribution change region CC. More specifically, for the foregoing technical solution, the main spacers 7 and the auxiliary spacers 8 of the distribution variation area CC may be in a cylindrical shape, and the main spacers 7 and the auxiliary spacers 8 in the middle of the display area AA may be in a truncated cone shape.
In order to further improve the supporting strength of the spacers in the distribution change area CC on the array substrate 1 and prevent the array substrate 1 and the circuit board 3 from warping, the main spacers 7 and the auxiliary spacers 8 in the distribution change area CC may be prepared by selecting a material with high hardness or doping a material with high hardness into the original material.
In this embodiment, the area specifically covered by the area where the distribution density of the main spacers 7 is increased (i.e., the distribution change area CC) is not limited, and several examples are given below:
(1) referring to fig. 4 again, the distribution variation region CC may cover the portion of the frame BB located at the side of the circuit board 3, so as to fully enhance the supporting force of the main spacer 7 around each circuit board 3.
(2) Based on the 1 st example, as shown in fig. 6, the distribution variation area CC may cover a portion of the frame area BB located on the side where the circuit board 3 is located and a portion of the edge portion of the display area AA located on the side where the circuit board 3 is located, so as to further increase the number of the main spacers 7 around the circuit board 3 and enhance the supporting strength of the main spacers 7 around the circuit board 3.
(3) As shown in fig. 7, since the moment that the supporting force opposite to the warping direction is applied to the peripheries of the two ends of the circuit board 3 is larger than the moment that the supporting force opposite to the warping direction is applied to the periphery in the middle of the circuit board 3, the supporting force opposite to the warping direction is applied to the two ends of the periphery of the circuit board 3, which can play a more significant role in preventing the warping of the circuit board 3 and the array substrate 1, in the liquid crystal display provided by this embodiment, the distribution change region CC is preferably located at the peripheries of the two ends of the circuit board 3, that is, the distribution density of the main spacers 7 at the peripheries of the two ends of the circuit board 3 is preferentially increased, so that the number of the added main spacers 7 can be reduced, but the effect of improving the warping problem is not reduced.
(4) Based on the 3 rd example, as shown in fig. 8, the distribution change area CC may be extended to the edge portion of the display area AA to further enhance the supporting strength of the main spacer 7 around the circuit board 3.
(5) As shown in fig. 9, if the distribution change region CC covers the portion of the frame area BB on the side of the circuit board 3, the distribution density of the main spacers 7 in the entire frame area BB is preferably increased in order to make the supporting strength uniform in each portion of the frame area BB.
(6) Based on the 5 th example, if the distribution change region CC covers the portion of the frame area BB located on the side where the circuit board 3 is located and the portion of the edge portion of the display area AA located on the side where the circuit board 3 is located, it is preferable to increase the distribution density of the main spacers 7 over the entire edge portions of the frame area BB and the display area AA in order to make the supporting strength uniform at each of the edge portions of the frame area BB and the display area AA.
In this embodiment, the main spacers 7 may be uniformly distributed in the middle portion of the display area AA to provide a uniform supporting force for the lcd.
In this embodiment, the arrangement manner of the main spacer 7 is not limited, the bottom of the main spacer 7 may be fixed on the color film substrate 2, and the top of the main spacer is against the array substrate 1; or, the bottom of the main spacer 7 is fixed on the array substrate 1, and the top thereof is against the color film substrate 2.
It should be noted that the liquid crystal display provided in this embodiment is suitable for any product or component with a display function, such as a television, a display, a movie screen, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, and a navigator.
The liquid crystal display provided by the embodiment can be manufactured by adopting the following method:
step S1: and manufacturing an array substrate 1 and a color film substrate 2.
Step S2: a plurality of main spacers 7 are manufactured on the array substrate 1 and/or the color film substrate 2, the substrate to which the main spacers 7 are attached has a distribution change area CC, and the distribution density of the main spacers 7 in the distribution change area CC is greater than that in the middle of the display area AA.
In this step, the main spacers 7 may be formed using a patterning process. For a liquid crystal display having both the main spacers 7 and the sub spacers 8, the main spacers 7 and the sub spacers 8 may be formed using two patterning processes, respectively.
Step S3: and carrying out box alignment on the array substrate 1 and the color film substrate 2.
In the step, the array substrate 1 and the color film substrate 2 are paired by using frame sealing glue, and liquid crystal is injected into a liquid crystal box formed by pairing.
Step S4: the circuit board 3 is bound to the edge of the array substrate 1, and the distribution change area CC is located on the periphery of the circuit board 3.
In this step, since the distribution change area CC is located at the periphery of the circuit board 3, and the distribution density of the main spacers 7 in the distribution change area CC is greater than the distribution density in the middle of the display area AA, the distribution density of the main spacers 7 in the specific area around the circuit board 3 is increased, so that the supporting force, which is applied by the main spacers 7 around the circuit board 3 to the warped array substrate 1, in the direction opposite to the warping direction is enhanced, the array substrate 1 and the circuit board 3 are prevented from warping to a greater extent, the mylar phenomenon caused by the warping of the circuit board 3 and the array substrate 1 is eliminated, and the picture display quality is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The liquid crystal display is characterized in that a distribution change area is arranged in the liquid crystal display and is positioned at the periphery of the circuit board, and the distribution density of the main shock insulators in the distribution change area is greater than that in the middle of the display area.
2. The liquid crystal display according to claim 1, further comprising a plurality of sub spacers disposed between the array substrate and the color filter substrate, wherein a height of the sub spacers in the distribution variation area is less than or equal to a height of the main spacers;
the height of the auxiliary spacer in the distribution change area is greater than that of the auxiliary spacer in the middle of the display area.
3. The liquid crystal display of claim 2, wherein in the distribution change region, the height of the sub spacers is gradually decreased in a direction radiating outward centering on the main spacers.
4. The liquid crystal display according to claim 1, further comprising a plurality of sub spacers disposed between the array substrate and the color filter substrate, wherein a height of the sub spacers in the distribution variation area is smaller than a height of the main spacers;
in the distribution change region, a protrusion is provided on the substrate opposite to the substrate to which the sub spacer is attached, and the protrusion abuts against the sub spacer.
5. The liquid crystal display of claim 1, wherein the top area of the main spacers of the distribution change region is greater than or equal to the top area of the main spacers in the middle portion of the display area.
6. The liquid crystal display according to any one of claims 1 to 5, wherein the distribution change region is located at the periphery of both ends of the circuit board.
7. The liquid crystal display according to any one of claims 1 to 5, wherein the distribution variation area covers a portion of the frame region located at a side of the circuit board; or,
the distribution change area covers the part of the frame area, which is located on the side where the circuit board is located, and the part of the edge part of the display area, which is located on the side where the circuit board is located.
8. The liquid crystal display according to any of claims 1 to 5, wherein the main spacers are uniformly distributed in the middle portion of the display area.
9. The liquid crystal display according to any one of claims 1 to 5, wherein the bottom of the main spacer is fixed on the color film substrate, and the top of the main spacer is against the array substrate; or,
the bottom of the main spacer is fixed on the array substrate, and the top of the main spacer is pressed against the color film substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804820.6U CN204945580U (en) | 2015-10-16 | 2015-10-16 | A kind of liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804820.6U CN204945580U (en) | 2015-10-16 | 2015-10-16 | A kind of liquid crystal display |
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| CN204945580U true CN204945580U (en) | 2016-01-06 |
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| CN201520804820.6U Active CN204945580U (en) | 2015-10-16 | 2015-10-16 | A kind of liquid crystal display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182626A (en) * | 2015-10-16 | 2015-12-23 | 京东方科技集团股份有限公司 | Liquid crystal display and manufacturing method thereof |
| CN106526955A (en) * | 2017-01-04 | 2017-03-22 | 京东方科技集团股份有限公司 | Display panel and display device |
| WO2019024186A1 (en) * | 2017-07-31 | 2019-02-07 | 深圳市华星光电技术有限公司 | Display panel, electronic device and method for fabricating display panel |
| US10416509B2 (en) | 2017-07-31 | 2019-09-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display panel, electronic device, and display panel fabrication method |
-
2015
- 2015-10-16 CN CN201520804820.6U patent/CN204945580U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182626A (en) * | 2015-10-16 | 2015-12-23 | 京东方科技集团股份有限公司 | Liquid crystal display and manufacturing method thereof |
| WO2017063426A1 (en) * | 2015-10-16 | 2017-04-20 | 京东方科技集团股份有限公司 | Liquid crystal display device and manufacturing method thereof |
| CN105182626B (en) * | 2015-10-16 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of liquid crystal display and its manufacturing method |
| US10162223B2 (en) | 2015-10-16 | 2018-12-25 | Boe Technology Group Co., Ltd. | Liquid crystal display and manufacturing method thereof |
| CN106526955A (en) * | 2017-01-04 | 2017-03-22 | 京东方科技集团股份有限公司 | Display panel and display device |
| WO2019024186A1 (en) * | 2017-07-31 | 2019-02-07 | 深圳市华星光电技术有限公司 | Display panel, electronic device and method for fabricating display panel |
| US10416509B2 (en) | 2017-07-31 | 2019-09-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display panel, electronic device, and display panel fabrication method |
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