CN109448542B - Display screen cover plate and display screen with same - Google Patents
Display screen cover plate and display screen with same Download PDFInfo
- Publication number
- CN109448542B CN109448542B CN201811151985.2A CN201811151985A CN109448542B CN 109448542 B CN109448542 B CN 109448542B CN 201811151985 A CN201811151985 A CN 201811151985A CN 109448542 B CN109448542 B CN 109448542B
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- China
- Prior art keywords
- display screen
- cover plate
- adhesive layer
- layer
- ink
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The invention discloses a display screen cover plate and a display screen with the same, wherein the related display screen cover plate comprises a substrate, an ink layer and an optical adhesive layer, the substrate is provided with a window area and a frame area, the frame area is positioned at the periphery of the window area, the ink layer is formed at the back of the frame area, the optical adhesive layer comprises a first colloid part distributed at the back of the window area and a second colloid part which is integrally connected with the periphery of the first colloid part and extends to the back of the ink area, and a plurality of grooves extending from the outer edge of the first colloid part to the outer edge of the second colloid part are formed on the second colloid part; based on the design structure of the optical adhesive layer, bubbles formed at the ink step position on the back surface of the substrate are easily discharged under the action of pressure and do not remain between the ink layer and the substrate, so that the bubbles can be prevented from rebounding to the ink step position again after the pressure is released, and the production yield of the display screen can be effectively improved.
Description
Technical Field
The invention relates to the field of display screen design, in particular to a display screen cover plate and a display screen with the same.
Background
Referring to fig. 1, a conventional display cover plate 100 includes a glass substrate 11, an ink layer 12 formed on a peripheral region of a back surface of the glass substrate 11, and an optical adhesive layer 13 connecting the cover plate 100 and other layers (not shown) of the display; the middle of the ink layer 12 is hollowed to form a display area of the display screen. In the process of manufacturing the display screen, the optical adhesive layer 13 covers the middle area (corresponding to the display area) of the back surface of the glass substrate 11 and the back surface of the ink layer 12, so that the connection between the display screen cover plate 100 and other layers of the display screen is realized.
In the display screen cover plate 100 shown in fig. 1, since the middle of the ink layer 12 is hollowed out, an ink step (i.e., an ink step difference) is formed on the back surface of the glass substrate 11, and according to the existing optical adhesive bonding process, the bubbles 14 are often easily formed at the ink step position. When bubbles appear, secondary bubble removal is generally carried out in a high-pressure bubble removal mode; part of bubble products can be solved in a certain proportion by secondary bubble removal, but the success rate is not very high and rebound phenomenon can exist to a great extent, and for those display screen products which cannot be solved or rebound by secondary bubble removal, the display screen products are required to be returned and disassembled, so that the production cost of the whole production process is increased.
In view of the above, there is a need to provide a technical solution that can effectively solve the above technical problems.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a display screen cover plate for achieving the purpose of the invention.
The utility model provides a display screen apron, includes base plate, printing ink layer and optical cement layer, the base plate has window district and frame district, the frame district is located window district periphery, the printing ink layer shaping in the frame district back, the optical cement layer including distribute in the first colloid portion at the window district back and with peripheral body coupling of first colloid portion and extend to the second colloid portion at the printing ink district back, be formed with a plurality of certainly in the second colloid portion first colloid portion outer fringe to the slot that second colloid portion outer fringe extends.
Furthermore, the groove is formed by the second colloid part clinging to one surface of the ink layer and sinking towards the direction far away from the ink layer.
Furthermore, the groove penetrates through two surfaces of the second colloid part.
Furthermore, a plurality of grooves are distributed at equal intervals on each side edge of the optical adhesive layer.
Further, the extension width of the second colloid part from the outer edge of the first colloid part to the outside is not less than 0.5 mm.
Further, the thickness of the ink layer overlapping the second colloid part is consistent with the thickness of the first colloid part.
Further, the display screen cover plate further comprises a foam adhesive layer which is adjacent to the outer edge of the second colloid part and is attached to the back surface of the ink layer.
Further, the thickness of the ink layer superposed on the foam adhesive layer is consistent with that of the first colloid part.
Further, the substrate is made of any one of glass, PET, PSA, PC and PMMA.
The invention also provides a display screen which comprises the display screen cover plate, and the display screen is also provided with a display panel layer attached to the back surface of the optical adhesive layer.
The invention has the beneficial effects that: based on the design structure of the optical adhesive layer in the display screen cover plate, bubbles formed at the ink step position on the back surface of the substrate are easily discharged through the groove under the action of external pressure, and do not remain between the ink layer and the substrate, so that the bubbles can be prevented from rebounding to the ink step position again after pressure is released, and the production yield of the display screen can be effectively improved in the specific application process.
Drawings
FIG. 1 is a schematic cross-sectional view of a prior art display cover plate;
FIG. 2 is a schematic cross-sectional view of one embodiment of a display cover plate according to the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2;
FIG. 4 is a schematic view of the backside of the optical adhesive layer;
FIG. 5 is a schematic perspective view of an optical adhesive layer;
FIG. 6 is an enlarged view of portion b of FIG. 5;
FIG. 7 is a partially enlarged view of another embodiment of the optical adhesive layer of the present invention;
FIG. 8 is a schematic plan view of a substrate with an ink layer formed on the back surface thereof;
FIG. 9 is a schematic plan view of the structure shown in FIG. 8 with an optical adhesive layer attached to the back surface thereof;
FIG. 10 is a schematic cross-sectional view of another embodiment of a display cover plate according to the present invention;
FIG. 11 is an enlarged view of portion c of FIG. 10;
FIG. 12 is a schematic plan view of the optical adhesive layer and the foam adhesive layer;
FIG. 13 is a schematic cross-sectional view of one embodiment of a display screen according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 2 to 13, which are some preferred implementation structures of the present invention.
Referring to fig. 2, a display cover 200 according to the present invention includes a substrate 21, an ink layer 22, and an optical adhesive layer 23. The substrate 21 has a window area 211 and a frame area 212, wherein the frame area 212 is located at the periphery of the window area 211; referring to fig. 8, the ink layer 22 is formed on the back of the frame region 212.
It is to be understood that the window area 211 in the present invention is defined by the ink layer 22. Specifically, the substrate 21 is made of a transparent material, and is generally made of any one of glass, PET, PSA, PC, and PMMA; the material of the ink layer 22 is formed by curing opaque ink, and in the structure of the display cover plate 200, the ink layer 22 on the back of the frame area 212 can block light from penetrating the substrate 21; the window area 211 is free of ink materials, so that light can pass through smoothly; in a specific implementation process, the inner edge of the ink layer 22 is flat, so that the display screen equipped with the display screen cover plate 200 has a better display function.
Specifically, in the present invention, referring to fig. 1, the optical adhesive layer 23 includes a first adhesive portion 231 distributed on the back surface of the window area 211, and a second adhesive portion 232 integrally connected to the periphery of the first adhesive portion 231 and extending to the back surface of the ink area 22. Referring to fig. 4, the second colloid portion 232 of the present invention has a plurality of grooves 230 extending from the outer edge of the first colloid portion 231 to the outer edge of the second colloid portion 232.
As further shown in fig. 8 and 9, the area size of the first glue portion 232 is substantially the same as the area size of the window area 211, that is, after the optical adhesive layer 23 is attached to the back surface of the substrate 21, the groove 230 extends outward from the inner edge of the ink layer 22. Therefore, bubbles formed at the ink step position on the back of the substrate 21 (namely, at the inner edge position of the ink layer 22) are easily discharged to the outside through the groove 230 under the action of external pressure, and cannot remain between the ink layer 22 and the substrate 21, so that the bubbles can be prevented from rebounding to the ink step position again after pressure release, and the production yield of the display screen can be effectively improved in the specific application process.
Referring to fig. 3, 4, 5, and 6, in the present embodiment, the groove 230 is formed by the second colloid 232 tightly adhering to a surface of the ink layer 22 and recessing in a direction away from the ink layer 22. Specifically, in the present embodiment, the surface of the optical adhesive layer 23 having the groove 230 is disposed toward the back surface of the substrate 21, so that when a bubble is formed at the ink step position on the back surface of the substrate 21, the bubble can be directly discharged from the groove 230 by the external pressure.
Referring to fig. 7, in another embodiment of the present invention, the groove 230 penetrates through both surfaces of the second glue portion 232, and the optical glue layer 23 based on the structure has the same function as the optical glue layer 23 of the structure shown in fig. 6, so that bubbles can be smoothly discharged.
In another embodiment of the present invention not shown in the figures, the groove 230 is formed by recessing the second colloid portion 232 away from a surface of the ink layer 22 toward a direction close to the ink layer 22, that is, a surface of the optical adhesive layer 23 having the groove 230 is disposed opposite to the substrate 21. Thus, when bubbles are formed at the ink step position on the back surface of the substrate 21, the position of the optical adhesive layer 23 corresponding to the groove 230 will deform to some extent based on the external pressure, so that the bubbles can be smoothly discharged; after the bubbles are discharged, once the external pressure is released, the position of the optical adhesive layer 23 corresponding to the groove 230 will recover to a certain extent to the original shape, and the second colloid portion 232 is made to cling to the ink layer 22 toward one surface of the substrate 21, thereby effectively preventing the external air from entering between the optical adhesive layer 23 and the substrate 21 again.
In the present invention, a plurality of grooves 230 are disposed at equal intervals on each side of the optical adhesive layer 23. Referring to fig. 4 and 5, in the embodiment, the optical adhesive layer 23 is rectangular, the plurality of grooves 230 are distributed on four sides of the optical adhesive layer 23, and the plurality of grooves 230 on each side are distributed at equal intervals.
As a preferred embodiment of the present invention, the extension width of the second colloid portion 232 from the outer edge of the first colloid portion 231 is not less than 0.5mm, so that it is ensured that the optical adhesive layer 23 can completely cover the window area 11, and sufficient adhesion force is provided between the edge of the optical adhesive layer 23 and the ink layer 22. In a specific implementation process, the outer edge of the second colloid portion 232 may abut against the edge position of the substrate 21, or the outer edge of the second colloid portion 232 may be located only inside the edge position of the substrate 21 as shown in fig. 2.
Referring to fig. 3, in the embodiment, the thickness of the ink layer 22 on the second colloid portion 232 is the same as the thickness of the first colloid portion 231, that is, the back surface of the optical adhesive layer 23 has a relatively flat surface, so that the display cover 200 forms an excellent bonding relationship with other layers of the display through the optical adhesive layer 23.
As another embodiment of the present invention, when the outer edge of the second colloid portion 232 is located at the inner side of the edge position of the substrate 21, referring to fig. 10, 11 and 12, the display panel cover 200 in this embodiment further includes a foam adhesive layer 24 adjacent to the outer edge of the second colloid portion 232 and attached to the back surface of the ink layer 22.
Due to the arrangement of the foam rubber layer 24, when the display screen cover plate 200 is bonded with other layers of the display screen through the optical rubber layer 23, a gap can be prevented from being formed between the other layers of the display screen and the ink layer 22 at the outer side of the edge of the second colloid part 232. As a specific implementation structure of the present embodiment, referring to fig. 11, the thickness of the ink layer 22 and the foam rubber layer 24 is the same as the thickness of the first rubber portion 231.
Referring to fig. 13, the present invention further provides a display screen, which includes the above display screen cover plate 20 and the display panel layer 3 attached to the back of the optical adhesive layer 23. In different embodiments, the specific components of the display panel layer 3 attached to the optical adhesive layer 23 can be adjusted according to the specific structure of the display screen. For example, in some embodiments, the specific component of the display panel layer 3 attached to the optical adhesive layer 23 may be a polarizer; in some embodiments, the specific component of the display panel layer 3 attached to the optical adhesive layer 23 is a touch glass; in particular, the development is not performed one by one.
As shown in fig. 13, based on the design structure of the display panel cover 200, the top surface of the display panel layer 3 and the back surface of the display panel cover can form a better planar bond. In the specific manufacturing process of the display screen shown in fig. 13, the optical adhesive layer 23 is attached to the top surface of the display panel layer 3 in advance, the foam adhesive layer 24 is attached to the back surface of the ink layer 22 in advance, and then the back surface of the display screen cover plate 200 is attached to the top surface of the display panel layer 3, so that the display screen with the cover plate is formed. After the display screen cover plate 200 is attached to the display panel layer 3, if the above-described bubbles exist, the bubbles can be eliminated by applying pressure on two sides, and the specific operation means refers to the prior art and is not described herein.
In the present invention, for each layer structure constituting the display cover 200, the back surface refers to a surface away from the eyes of the user when the user uses the display.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. A display screen cover plate comprises a substrate, an ink layer and an optical adhesive layer, wherein the substrate is provided with a window area and a frame area, the frame area is positioned at the periphery of the window area, and the ink layer is formed on the back of the frame area; the display screen cover plate further comprises a foam adhesive layer which is adjacent to the outer edge of the second colloid part and is attached to the back surface of the ink layer.
2. The cover plate of claim 1, wherein the groove is formed by the second glue portion tightly adhering to a surface of the ink layer and recessing in a direction away from the ink layer.
3. The cover plate of claim 2, wherein the grooves extend through both surfaces of the second gel.
4. The cover plate according to claim 1, wherein the plurality of grooves are equally spaced on each side of the optical adhesive layer.
5. The cover plate of claim 1, wherein the second glue portion extends from the outer edge of the first glue portion by a width of not less than 0.5 mm.
6. The display screen cover according to claim 1, wherein the thickness of the ink layer overlapping the second glue portion is the same as the thickness of the first glue portion.
7. The display screen cover plate according to claim 1, wherein the thickness of the ink layer superposed on the foam adhesive layer is consistent with the thickness of the first colloid part.
8. The cover plate of any of claims 1-6, wherein the substrate is made of any of glass, PET, PSA, PC, PMMA.
9. A display screen, comprising the display screen cover plate according to any one of claims 1 to 8, wherein the display screen further comprises a display panel layer attached to the back surface of the optical adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151985.2A CN109448542B (en) | 2018-09-29 | 2018-09-29 | Display screen cover plate and display screen with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151985.2A CN109448542B (en) | 2018-09-29 | 2018-09-29 | Display screen cover plate and display screen with same |
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| Publication Number | Publication Date |
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| CN109448542A CN109448542A (en) | 2019-03-08 |
| CN109448542B true CN109448542B (en) | 2021-07-09 |
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| CN201811151985.2A Active CN109448542B (en) | 2018-09-29 | 2018-09-29 | Display screen cover plate and display screen with same |
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| US20220390983A1 (en) * | 2019-08-19 | 2022-12-08 | Boe Technology Group Co., Ltd. | Foldable display screen and manufacturing method thereof, and display apparatus |
| CN110764651B (en) * | 2019-10-25 | 2022-05-13 | 业成科技（成都）有限公司 | Display device |
| CN111862808A (en) * | 2020-06-28 | 2020-10-30 | 京东方科技集团股份有限公司 | Display cover plate, preparation method thereof and flexible display device |
| CN213126448U (en) * | 2020-08-19 | 2021-05-04 | 昆山国显光电有限公司 | Display panel and sound box |
| CN114554734B (en) * | 2020-11-11 | 2023-02-17 | 荣耀终端有限公司 | Lid structure, back of body lid and electronic equipment |
| KR20220078379A (en) * | 2020-12-03 | 2022-06-10 | 엘지디스플레이 주식회사 | Display device |
| CN113327511B (en) * | 2021-06-03 | 2023-05-12 | 业成科技（成都）有限公司 | Display device and electronic apparatus |
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| CN109448542A (en) | 2019-03-08 |
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Application publication date: 20190308 Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000156 Denomination of invention: Display screen cover plate and display screen with same License type: Common License Record date: 20191030 |
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Effective date of registration: 20191206 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Applicant after: Guangzhou Guoxian Technology Co., Ltd Address before: 215300, No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou, 4 Applicant before: Kunshan Guo Xian Photoelectric Co., Ltd. |
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