CN217767797U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN217767797U CN217767797U CN202221795251.XU CN202221795251U CN217767797U CN 217767797 U CN217767797 U CN 217767797U CN 202221795251 U CN202221795251 U CN 202221795251U CN 217767797 U CN217767797 U CN 217767797U
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- 239000000758 substrate Substances 0.000 claims abstract description 155
- 239000000565 sealant Substances 0.000 claims abstract description 48
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 94
- 239000011241 protective layer Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 43
- 239000010409 thin film Substances 0.000 description 14
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- 229920006259 thermoplastic polyimide Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The application provides a display panel and display device, display panel includes: an array substrate; the color film substrate is connected with the array substrate in a box manner; the array substrate and the color film substrate are bonded in a sealing mode through the sealant; the sealant, the array substrate and the color film substrate together enclose a sealing cavity; the liquid crystal layer is filled in the sealing cavity; and the insulating layer is arranged at the bonding position between the array substrate and the color film substrate so as to insulate the array substrate and the color film substrate at the bonding position. The insulating layer is arranged between the bonding positions of the array substrate and the color film substrate, so that the sealant is separated from at least one of the array substrate and the color film substrate, the array substrate and the color film substrate are prevented from being conducted and short-circuited at the bonding positions through the sealant, the insulation stability of the array substrate and the color film substrate at the bonding positions can be ensured, the display problems of transverse stripes, black screens and the like of the display panel caused by the short circuit of the array substrate and the color film substrate are avoided, the display effect of the display panel is improved, and the yield of the display panel is improved.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
Liquid Crystal Display (LCD) devices have many advantages such as thin body, power saving, and no radiation, and are widely used. Such as: liquid crystal televisions, mobile phones, personal Digital Assistants (PDAs), digital cameras, computer screens, or notebook computer screens, among others. Generally, a liquid crystal display panel includes a Color Filter (CF) substrate, a Thin Film Transistor (TFT) array substrate, and a liquid crystal layer sandwiched between the Color Filter substrate and the TFT array substrate.
The thin film transistor array substrate and the color film substrate are bonded through the sealant in a sealing manner, but metal impurities in the sealant easily enable the thin film transistor array substrate and the color film substrate to be in conduction and short circuit, so that the display problems of the display panel such as horizontal stripes or black screen and the like are caused, and the display effect of the display panel is influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a display panel and a display device to solve the problem that the display effect of the existing display panel is poor.
In a first aspect, an embodiment of the present application provides a display panel, including:
an array substrate;
the color film substrate is connected with the array substrate in a box manner;
the array substrate and the color film substrate are bonded in a sealing mode through the sealant; the sealant, the array substrate and the color film substrate together enclose a sealed cavity;
the liquid crystal layer is filled in the sealed cavity;
and the insulating layer is arranged at the bonding position between the array substrate and the color film substrate so as to insulate the array substrate and the color film substrate at the bonding position.
Optionally, the insulating layer is disposed between the array substrate and the sealant.
Optionally, the array substrate includes a driving circuit and a conductive layer, and the conductive layer is disposed on one side of the driving circuit facing the color film substrate; the drive circuit comprises a first signal line and a second signal line, the first signal line is conducted with the second signal line through the conducting layer, and the insulating layer is arranged between the conducting layer and the sealant.
Optionally, the array substrate further includes a protective layer, where the protective layer is disposed on one side of the driving circuit facing the color filter substrate; the protective layer is provided with a first via hole and a second via hole, the first via hole corresponds to the first signal line, and the second via hole corresponds to the second signal line; the conducting layer is arranged on one side, away from the driving circuit, of the protective layer, and conducts the first signal line and the second signal line through the first conducting hole and the second conducting hole.
Optionally, the array substrate further includes a pixel electrode, and the conductive layer and the pixel electrode are disposed on the same layer.
Optionally, the insulating layer is disposed between the color film substrate and the sealant.
Optionally, the insulating layer includes an organic composite material layer.
Optionally, the insulating layer comprises a material layer having an elastic recovery rate greater than or equal to 80%.
Optionally, the thickness of the insulating layer is set to 50 to 100 angstroms.
In a second aspect, embodiments of the present application further provide a display device, where the display device includes a display panel as described above and a controller, and the controller is electrically connected to the display panel.
According to the display panel provided by the embodiment of the application, the insulating layer is arranged between the bonding parts of the array substrate and the color film substrate, so that the sealant is separated from at least one of the array substrate and the color film substrate, and the array substrate and the color film substrate are prevented from being conducted and short-circuited at the bonding parts through the sealant, so that the insulation stability of the array substrate and the color film substrate at the bonding parts can be ensured, the display problems of transverse stripes, black screens and the like caused by the short circuit of the array substrate and the color film substrate of the display panel are avoided, the display effect of the display panel is improved, and the yield of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure.
10. An array substrate; 20. a color film substrate; 30. sealing glue; 40. a liquid crystal layer; 50. an insulating layer; 11. a first signal line; 12. a second signal line; 13. a protective layer; 131. a first via hole; 132. a second via hole; 14. a pixel electrode; 15. and a conductive layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Generally, a Liquid Crystal display panel is composed of a Color Filter substrate 20 (CF), a Thin Film Transistor array substrate 10 (TFT), a Liquid Crystal (LC) and a Sealant 30 frame (Sealant), and the forming process generally includes: front-stage array substrate 10 and color film substrate 20 (thin film, yellow light, etching and film stripping), middle-stage Cell-in-Cell (TFT substrate and CF substrate bonding), and back-stage module assembly (driver IC and printed circuit board bonding). The manufacturing process of the front-stage array substrate 10 mainly includes forming an array substrate 10 and a color film substrate 20 so as to control the movement of liquid crystal molecules; the middle-stage box forming process is mainly to add liquid crystal between the array substrate 10 and the color film substrate 20; the back module assembly process mainly drives the integration of IC pressing and printed circuit board, and further drives the liquid crystal molecules to rotate and display images.
The thin film transistor array substrate 10 and the color film substrate 20 are sealed and bonded by the sealant 30, but the raw material of the sealant 30 is not stable enough, and metal impurities exist due to the influence of the environment in the manufacturing process. The metal impurities in the sealant 30 easily make the thin film transistor array substrate 10 and the color film substrate 20 be in conduction and short-circuit, which causes the display panel to have display problems such as horizontal stripes or black screen, and affects the display effect of the display panel.
The embodiment of the application provides a display panel and a display device, so as to avoid the display problems of the display panel, such as cross striations and black screens, caused by the short circuit between an array substrate 10 and a color film substrate 20, improve the display effect of the display panel, and improve the yield of the display panel. Which will be described below with reference to the accompanying drawings.
The display panel provided by the embodiment of the application can be applied to a display device. For example, please refer to fig. 1, fig. 1 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present disclosure. The display panel that this application embodiment provided includes: an array substrate 10; the color film substrate 20 is connected with the array substrate 10 in a box-shaped manner; the sealant 30 is used for sealing and bonding the array substrate 10 and the color film substrate 20; the sealant 30, the array substrate 10 and the color film substrate 20 together enclose a sealed cavity; a liquid crystal layer 40 filled in the sealed cavity; and the insulating layer 50 is arranged at the bonding position between the array substrate 10 and the color film substrate 20 to insulate a part of the bonding position between the array substrate 10 and the color film substrate 20.
In this embodiment, the array substrate 10 may be a thin film transistor array substrate 10, and the thin film transistor is used as a driving switch for making a pixel of the display panel emit light and includes a source, a drain, a gate, a channel and a gate insulating layer 50. By controlling the input voltage of the gate, the thin film transistor can control the on/off of the current at the two ends of the source and the drain. The array substrate 10 further includes gate lines, data lines, and pixel electrodes 14. The number of the gate lines and the data lines is multiple, the gate lines and the data lines are arranged in a crossing manner to form a plurality of pixel units, and the pixel electrode 14 is arranged in each pixel unit. Each pixel electrode 14 is controlled by a thin film transistor, when the thin film transistor is turned on, the pixel electrode 14 is charged within the turn-on time, and the transmittance of different liquid crystals is controlled, so that the effect of controlling color and brightness is achieved; after the tft is turned off, the voltage of the pixel electrode 14 is maintained until the next scan, and the pixel electrode is recharged.
The sealant 30 seals and bonds the side edges of the array substrate 10 and the color filter substrate 20, so that the sealant 30 is in a frame shape integrally between the array substrate 10 and the color filter substrate 20. It can be understood that the bonding position of the array substrate 10 and the color filter substrate 20 is a non-display area of the display panel, and the array substrate 10 is formed with a driving circuit in the non-display area, so that the sealant 30 may contact the conductive metal layer of the array substrate 10 in the non-display area. One side of the color film substrate 20 facing the array substrate 10 is also provided with an electrode film layer for forming an electric field in cooperation with the pixel electrode 14 on the array substrate 10; the sealant 30 contacts the electrode film layer on the color filter substrate 20. If metal impurities exist in the sealant 30, the conductive metal layer of the array substrate 10 in the non-display region and the electrode film layer of the color film substrate 20 are connected and shorted through the sealant 30, so that abnormal display of the display panel is caused.
The insulating layer 50 may be disposed between the sealant 30 and the array substrate 10, i.e., between the adhesive joints between the sealant 30 and the array substrate 10; or between the sealant 30 and the color film substrate 20, that is, between the bonding positions of the sealant 30 and the color film substrate 20; the sealant 30 may be disposed between the bonding positions of the sealant 30 and the array substrate 10, or between the bonding positions of the sealant 30 and the color film substrate 20, which is not limited herein, and only needs to be able to insulate and separate at least one of the array substrate 10 and the color film substrate 20 from the sealant 30.
The insulating layer 50 is made of an insulating material, such as an organic composite material, and may be specifically a resin, a thermoplastic polymer, or polyimide. The organic composite material can be better adhered by the sealant 30 to improve the adhesion stability of the sealant 30 and the insulating layer 50.
Specifically, the insulating layer 50 includes a material layer having an elastic recovery rate of 80% or more, and specifically may be a material layer having an elastic recovery rate of 80% or more under a test of 80MN pressure. The elastic recovery rate represents the percentage of recoverable deformation of the sample material after being elongated by a certain length. The insulating layer 50 is set to be a material layer with an elastic recovery rate greater than or equal to 80%, so that when the insulating layer 50 is pulled by the sealant 30, the deformation of the insulating layer 50 is reduced, and the increase of the distance between the array substrate 10 and the color film substrate 20 caused by excessive deformation of the insulating layer 50 is avoided, thereby ensuring the stability of the whole structure of the display panel.
In practical applications, the thickness of the insulating layer 50 is set to be 50 to 100 angstroms, and may be, for example, 50 to 60 angstroms, 70 to 80 angstroms, 90 to 100 angstroms, or the like. Therefore, the structural stability and the insulation stability of the insulating layer can be ensured, and the overall thickness of the display panel can be reasonably controlled.
According to the display panel provided by the embodiment of the application, the insulating layer 50 is arranged between the bonding position of the array substrate 10 and the color film substrate 20, so that the sealant 30 is separated from at least one of the array substrate 10 and the color film substrate 20, and the array substrate 10 and the color film substrate 20 are prevented from being conducted and short-circuited at the bonding position through the sealant 30, so that the insulation stability of the array substrate 10 and the color film substrate 20 at the bonding position can be ensured, the display problems of cross striations, black screens and the like of the display panel due to the short circuit of the array substrate 10 and the color film substrate 20 are avoided, the display effect of the display panel is improved, and the yield of the display panel is improved.
For example, as shown in fig. 1, the insulating layer 50 is disposed between the array substrate 10 and the sealant 30. At the bonding position of the array substrate 10, the exposed portion of the driving circuit has a smaller area than the electrode film layer on the color filter substrate 20, so that the insulating layer 50 is disposed between the array substrate 10 and the sealant 30, and the insulating layer 50 can accurately cover the exposed portion of the driving circuit, thereby reducing the required material of the insulating layer 50 and reducing the production and processing cost of the display panel.
For example, the array substrate 10 includes a driving circuit and a conductive layer 15, where the conductive layer 15 is disposed on a side of the driving circuit facing the color filter substrate 20; the driving circuit comprises a first signal line 11 and a second signal line 12, the conductive layer 15 conducts the first signal line 11 and the second signal line 12, and the insulating layer 50 is arranged between the conductive layer 15 and the sealant 30.
The first signal line 11 and the second signal line 12 are electrically connected to the gate line and the data line, the first signal line 11 and the second signal line 12 form a GOA driving circuit on the array substrate 10, and the first signal line 11 can transmit a driving signal to the second signal line 12. The first signal line 11 and the second signal line 12 are provided in different layers, and therefore a conductive layer 15 is required for conductive bridging. The conductive layer 15 may be partially located at the bonding position of the array substrate 10, or may be completely located at the bonding position of the array substrate 10, which is not limited herein, and only the insulating layer 50 is required to be located between the conductive layer 15 and the sealant 30.
For example, as shown in fig. 1, the array substrate 10 further includes a protection layer 13, where the protection layer 13 is disposed on a side of the driving circuit facing the color filter substrate 20; the protective layer 13 is provided with a first via hole 131 and a second via hole 132, the first via hole 131 corresponds to the first signal line 11, and the second via hole 132 corresponds to the second signal line 12; the conductive layer 15 is disposed on a side of the protection layer 13 away from the driving circuit, and the conductive layer 15 connects the first signal line 11 and the second signal line 12 through the first via hole 131 and the second via hole 132.
The protective layer 13 covers both the driving circuit in the non-display region and the thin film transistor in the display region, thereby protecting the thin film transistor and the driving circuit on the array substrate 10. The protective layer 13 may specifically comprise a PFA plastic layer (a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene). The conductive layer 15 extends along the hole walls of the first and second via holes 132 to be in contact with the first and second signal lines 11 and 12, and the insulating layer 50 is provided on the conductive layer 15. Specifically, the insulating layer 50 may be formed on the conductive layer 15 by exposure and development, so that the process of forming the insulating layer 50 may be simplified and the production efficiency may be improved.
Specifically, the array substrate 10 further includes a pixel electrode 14, and the conductive layer 15 and the pixel electrode 14 are disposed on the same layer, so that the conductive layer 15 and the pixel electrode 14 can be prepared and formed through the same process, thereby simplifying the preparation process of the conductive layer 15 and improving the preparation efficiency of the conductive layer 15.
By way of example, the embodiment of the present application further provides a display device, which includes a controller and the display panel as described above, where the controller is electrically connected to the display panel. The display device can be any product or component with a display function, such as electronic paper, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. The display panel provided in the embodiments of the present application is described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel, comprising:
an array substrate;
the color film substrate is connected with the array substrate in a box-forming manner;
the array substrate and the color film substrate are bonded in a sealing mode through the sealant; the sealant, the array substrate and the color film substrate enclose a sealing cavity together;
the liquid crystal layer is filled in the sealed cavity;
and the insulating layer is arranged at the bonding position between the array substrate and the color film substrate so as to insulate the array substrate and the color film substrate at the bonding position.
2. The display panel of claim 1, wherein the insulating layer is disposed between the array substrate and the sealant.
3. The display panel according to claim 2, wherein the array substrate comprises a driving circuit and a conductive layer, and the conductive layer is disposed on a side of the driving circuit facing the color filter substrate; the driving circuit comprises a first signal wire and a second signal wire, the first signal wire and the second signal wire are conducted through the conducting layer, and the insulating layer is arranged between the conducting layer and the sealant.
4. The display panel according to claim 3, wherein the array substrate further comprises a protective layer, and the protective layer is disposed on one side of the driving circuit facing the color filter substrate; the protective layer is provided with a first via hole and a second via hole, the first via hole corresponds to the first signal line, and the second via hole corresponds to the second signal line; the conducting layer is arranged on one side, away from the driving circuit, of the protective layer, and the conducting layer conducts the first signal line and the second signal line through the first via hole and the second via hole.
5. The display panel of claim 3, wherein the array substrate further comprises a pixel electrode, and the conductive layer is disposed on the same layer as the pixel electrode.
6. The display panel according to claim 1, wherein the insulating layer is disposed between the color filter substrate and the sealant.
7. The display panel according to any one of claims 1 to 6, wherein the insulating layer comprises an organic composite layer.
8. The display panel according to any one of claims 1 to 6, wherein the insulating layer comprises a material layer having an elastic recovery of 80% or more.
9. The display panel according to any one of claims 1 to 6, wherein a thickness of the insulating layer is set to 50 to 100 angstroms.
10. A display device comprising a controller, and the display panel according to any one of claims 1 to 9; the controller is electrically connected with the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221795251.XU CN217767797U (en) | 2022-07-12 | 2022-07-12 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221795251.XU CN217767797U (en) | 2022-07-12 | 2022-07-12 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217767797U true CN217767797U (en) | 2022-11-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221795251.XU Active CN217767797U (en) | 2022-07-12 | 2022-07-12 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217767797U (en) |
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2022
- 2022-07-12 CN CN202221795251.XU patent/CN217767797U/en active Active
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