CN108831303B - A backplate and electronic equipment for curved surface screen - Google Patents
A backplate and electronic equipment for curved surface screen Download PDFInfo
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- CN108831303B CN108831303B CN201810631944.7A CN201810631944A CN108831303B CN 108831303 B CN108831303 B CN 108831303B CN 201810631944 A CN201810631944 A CN 201810631944A CN 108831303 B CN108831303 B CN 108831303B
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- 238000005452 bending Methods 0.000 claims abstract description 21
- 238000010030 laminating Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 6
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application discloses a backboard for a curved screen and electronic equipment, wherein the backboard comprises a first area board body and a second area board body which are connected with each other, the first area board body is a board body which keeps a flat state when being attached to a curved object, the second area board body is a board body which keeps a bending state when being attached to the curved object, and the second area board body is provided with a hollow or groove structure; the electronic equipment comprises a cover plate with a bending part, a flexible screen and a back plate, wherein the flexible screen and the back plate are attached to the cover plate, a first area plate body of the back plate is attached to a flat area, back to the cover plate, of the flexible screen, and a second area plate body of the back plate is attached to a bending area, back to the cover plate, of the flexible screen. In this way, this application can reduce the stress that produces when the second region of backplate and curved surface thing laminating, produces the bubble when preventing to laminate.
Description
Technical Field
The application relates to the technical field of display, in particular to a back plate for a curved screen and electronic equipment.
Background
In the field of Display technology, flat panel Display technologies such as Liquid Crystal Displays (LCDs) and Organic Light Emitting Diodes (OLEDs) have gradually replaced CRT (Cathode Ray Tube) displays. The OLED display has many advantages of self-luminescence, low driving voltage, high luminous efficiency, short response time, high definition and contrast, a viewing angle of approximately 180 °, a wide temperature range, and flexible display and large-area full-color display, and is considered as a display device with the most potential for development in the industry.
With the maturity of the flexible OLED technology, various curved surface display products are more and more on the market; however, the laminating process of the curved-surface cover plate and the flexible OLED in the curved-surface display OLED is complex and low in yield, gas in a curved-edge area is difficult to discharge during laminating, and bubbles are prone to being generated.
In the curved surface display screen attaching process, a back plate (back plate) attaching process is adopted, and the back plate is attached to the back surface of the flexible screen and then attached to the curved surface cover plate; because the backplate material is thick and the material is harder, can seriously influence curved surface laminating effect, and produce the bubble easily.
Disclosure of Invention
The problem that this application mainly solved provides a backplate and electronic equipment for curved surface screen, and the stress that produces when the second area that can reduce the backplate and the laminating of curved surface thing prevents to produce the bubble when laminating.
In order to solve the technical problem, the technical scheme adopted by the application is to provide the back plate for the curved screen, wherein the back plate for the curved screen comprises a first area plate body and a second area plate body which are connected with each other; the first area plate body is a plate body which keeps a flat plate state when being attached to a curved object; the second area plate body is a plate body which keeps a bending state when being attached to a curved object, wherein the second area plate body is provided with a hollow-out or groove structure.
In order to solve the above technical problem, another technical solution adopted by the present application is to provide an electronic device with a curved screen, including: the flexible screen comprises a cover plate with a bending part, and a flexible screen and a back plate which are attached to the cover plate; the back plate comprises a first area plate body and a second area plate body which are connected with each other; the first area plate body is attached to a flat area of the flexible screen, which is back to the cover plate; the second area plate body is attached to a bending area of the flexible screen, back to the cover plate, wherein the second area plate body is provided with a hollow-out or groove structure.
Through the scheme, the beneficial effects of the application are that: the backboard comprises a first area board body which is attached to a curved object and keeps a flat state and a second area board body which is attached to the curved object and keeps a bent state, and the second area board body is designed to be of a hollow or groove structure, so that when the backboard is attached to the curved object, stress generated when the second area board body of the backboard is attached to the bent area of the curved object can be reduced, bubbles are generated when the backboard is prevented from being attached to the curved object, and the backboard is more firmly attached to the curved object.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic diagram of an electronic device according to the prior art;
FIG. 2 is a schematic side view of one embodiment of a backplate for a curved screen as provided herein;
FIG. 3 is a schematic view of an embodiment of a backplate for a curved screen according to the present application;
FIG. 4 is a schematic top view of another embodiment of a backplate for a curved screen provided herein;
FIG. 5 is a schematic view of another embodiment of a backplate for a curved screen according to the present application;
FIG. 6 is a schematic structural diagram of a curved object in another embodiment of a back plate for a curved screen provided in the present application;
FIG. 7 is a schematic diagram of an embodiment of an electronic device with a curved screen provided herein;
FIG. 8 is a schematic top view of a backplate in an embodiment of an electronic device with a curved screen provided herein;
fig. 9 is a schematic structural diagram of another embodiment of an electronic device with a curved screen provided in the present application.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the 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.
As shown in fig. 1, in the prior art, the back plate 11 is attached to the back of the flexible OLED12, and the thickness of the attached product is increased; then the flexible OLED12 attached to the back plate 11 is attached to the curved cover plate 13; since the material stress is large at the curved edge bonding position, the flexible OLED12 is easily separated from the curved cover plate 13 at the curved edge bonding position, and bubbles are generated in the non-bonding region 14.
Referring to fig. 2 and 3, fig. 2 is a schematic top view of an embodiment of a back plate for a curved screen provided in the present application, where the back plate 21 includes a first area plate 211 and a second area plate 212 connected to each other.
The back plate 21 is a flexible plate which can deform when being subjected to external force; the material of the back sheet 21 may be polyethylene terephthalate.
The first area plate 211 is a plate that maintains a flat plate shape when attached to the curved object 22, and the second area plate 212 is a plate that maintains a bent shape when attached to the curved object 22.
When the back plate 21 is attached to the curved object 22, the first area plate 211 is attached to the flat area 221 of the curved object 22, and the second area plate 212 is attached to the curved area 222 of the curved object 22, as shown in fig. 3.
When the back plate 21 is attached to the curved object 22, in order to reduce the stress of the second region plate 212 of the back plate 21 at the bending region 222, a hollow-out or groove structure 2121 may be disposed on the second region plate 212; the second area plate 212 of the back plate 21 may be cut by laser to form a hollow or groove structure 2121.
The shape of the hollowed-out or groove structure 2121 can be any reasonable shape such as rectangle, trapezoid, arc, etc., and is not limited to the shape shown in fig. 2; the hollowed-out or recessed structure 2121 may be disposed at a position where the curvature of the bending region 222 changes; the number of hollowed-out or recessed structures 2121 can be set as desired.
In addition, in order to protect the back plate 21 from being contaminated by air heavy water vapor and dust, a first release film and a second release film (not shown in the figure) may be respectively disposed on two sides of the back plate 21, and the corresponding film layers may be torn off during use.
Different from the prior art, the embodiment provides a back plate for a curved screen, the back plate 21 includes a first area plate 211 maintaining a flat state when being attached to a curved object 22 and a second area plate 212 maintaining a curved state when being attached to the curved object 22, and the second area plate 212 is designed to have a hollow or groove structure 2121, so that when the back plate 21 is attached to the curved object 22, stress generated when the second area plate 212 of the back plate 21 is attached to the curved area 222 of the curved object 22 can be reduced, generation of bubbles during attachment is prevented, and the back plate 21 and the curved object 22 are more firmly attached.
Referring to fig. 4 to 6, fig. 4 is a schematic structural diagram of another embodiment of a back sheet for a curved screen provided in the present application, where the back sheet 41 includes a laminated substrate 411 and a release film 412.
The base 411 includes a first area plate 4111 and a second area plate 4112 connected to each other.
The first area plate 4111 is a plate which maintains a flat state when attached to the curved object 42; the second area plate 4112 is a plate body that keeps a bending state when being attached to the curved object 42, and the second area plate 4112 is disposed on two sides of the first area plate 4111.
The second area plate 4112 is provided with a plurality of hollow or groove structures 41121 arranged at intervals, and the hollow or groove structures 41121 are arranged on the substrate 411.
The hollow or groove structure 41121 is a strip shape, and the hollow or groove structure 41121 is perpendicular to the bending direction of the second area plate 4112 and extends on the second area plate 4112; the size of the hollowed-out or grooved structure 41121 is about 95-105 μm; the number of the hollowed-out or groove structures 41121 may be 3 or 4.
The thickness of the release film 412 is about 150 μm to protect the substrate 411.
As shown in fig. 5, the curved object 42 includes a flat region 421 and curved regions 422 on both sides of the flat region 421, the first region plate 4111 is attached to the flat region 421 of the curved object 42, and the second region plate 4112 is attached to the curved regions 422 of the curved object 42.
As shown in fig. 6, the bending region 422 may be formed by a plurality of arcs with different radii, and the number of the hollowed-out or groove structures 2121 is proportional to the number of the arcs; for example, in fig. 6, the bending region 422 is formed by 3 circular arcs with different radii (R1, R2, and R3 are radius values), and the number of the hollow-out or groove structures 2121 may be set to 3, that is, 3 rectangular hollow-out or groove structures 41121 may be respectively disposed on the bending region 422.
Be different from prior art, the backplate for curved surface screen that this embodiment provided, this backplate 41 includes base 411 and leaves type membrane 412, through two second region plate bodies 4112 design on with base 411 for having fretwork or groove structure 41121, when making base 411 laminate with curved surface thing 42, can reduce the stress that produces when the second region plate body 4112 of base 411 laminates with curved surface thing 42's bending region 422, produce the bubble during the laminating when preventing to laminate, make backplate 41 paste more firmly with curved surface thing 42.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an embodiment of an electronic device with a curved screen provided in the present application, where the electronic device includes: a cover plate 71 having a bent portion, and a flexible screen 72 and a back plate 73 attached to the cover plate 71.
The cover plate 71 may be a glass cover plate; the flexible screen 72 may include a stacked array substrate, an anode, a light emitting layer, and a cathode (not shown), etc.
The back plate 73 includes a first area plate 731 and a second area plate 732 connected to each other.
The first area plate 731 is attached to the flat area 711 of the flexible screen 72 opposite to the cover plate 71; the second area plate 732 is attached to the bending area 712 of the flexible screen 72 opposite to the cover 71, and the second area plate 732 is provided with a hollow or groove structure 7321, as shown in fig. 8.
The second region body 732 of the back plate 73 is designed to be a hollow or groove structure 7321, so that when the back plate 73 and the flexible screen 72 are attached to the curved cover plate 71, the flexible screen can be attached along the curved structure of the cover plate 71, and the problem that curved edge bubbles are easily generated in a curved edge attaching process of the curved display screen is solved.
Firstly, attaching the flexible screen 72 to the back plate 73, and then attaching the flexible screen 72 attached to the back plate 73 to the curved cover plate 71; since the back plate 73 has the hollowed-out or groove structure 7321 in the second region body 732, the stress at the region where the second region body 732 is located corresponding to the bending region 712 is reduced, so that the flexible screen 72 is firmly attached to the cover plate 71 and is not easily peeled off, and the risk of generating bubbles is reduced.
Different from the prior art, in the electronic device with the curved screen provided in this embodiment, the second area plate 732 is designed to have the hollowed-out or groove structure 7321, so that when the flexible screen 72 is attached to the curved cover plate 71, the stress of the area where the second area plate 732 of the back plate 73 is located is reduced, bubbles are prevented from being generated during attachment, and the cover plate 71 and the flexible screen 72 are more firmly attached.
Referring to fig. 9, fig. 9 is a schematic structural diagram of another embodiment of an electronic device with a curved screen provided in the present application, where the electronic device includes: a cover plate 91 having a bent portion, and a flexible screen 92 and a back plate 93 attached to the cover plate 91.
The back plate 93 includes a first area plate 931 and a second area plate 932 connected to each other.
The first area plate 931 is attached to the flat area 911 of the flexible screen 92 opposite to the cover plate 91, and the second area plate 932 is attached to the curved area 912 of the flexible screen 92 opposite to the cover plate 91.
The second area plate 932 is disposed at two sides of the first area plate 931, and the second area plate 932 is disposed with a plurality of hollow-out or groove structures (not shown in the figure) disposed at intervals.
The hollow or groove structure is strip-shaped and extends in the second area plate 932 perpendicular to the bending direction of the second area plate 932; the size of the hollow or groove structure is 95-105 μm.
Arranging a plurality of strip-shaped structures at intervals on a second area body 932 of the back plate 93, and attaching the flexible screen 92 attached to the back plate 93 to the curved cover plate 91; because backplate 93 has fretwork or groove structure in the regional area of bent limit, therefore the material stress at the regional backplate 93 of bent limit reduces, and flexible screen 92 is laminated firmly with apron 91 and is difficult for separating, is difficult to produce the bubble.
Be different from prior art, the electronic equipment with curved screen that this embodiment provided designs for having fretwork or groove structure through two regional plate bodies 932 of second with backplate 93 for when flexible screen 92 and curved cover plate 91 laminate, reduced the regional stress in second regional plate body 932 of backplate 93, produce the bubble when preventing to laminate, make apron 91 paste more firmly with flexible screen 92.
The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.
Claims (5)
1. A backboard for a curved screen is characterized by comprising a laminated base body and a release film, wherein the base body comprises a first area board body and a second area board body which are connected with each other, and the second area board body is arranged on two sides of the first area board body;
the first area plate body is a plate body which keeps a flat plate state when being attached to a curved surface object, and the second area plate body is a plate body which keeps a bending state when being attached to the curved surface object;
wherein, first region plate body with the flat regional laminating of curved surface thing, the second region plate body with the curved region laminating of curved surface thing, the second region plate body is provided with the groove structure that a plurality of intervals set up, the groove structure perpendicular to the direction of buckling of the second region plate body is in the extension of the second region plate body, the size of groove structure is 95-105 mu m, curved region comprises a plurality of not radial circular arcs, groove structure set up in curved region camber changes the department, groove structure's quantity with the quantity of circular arc is directly proportional.
2. A backplane for curved screens according to claim 1,
the groove structure is in a strip shape.
3. A backplane for curved screens according to claim 1,
the material of the back plate is polyethylene terephthalate.
4. An electronic device having a curved screen, comprising:
the flexible screen comprises a cover plate with a bent part, and a flexible screen and a back plate which are attached to the cover plate;
the back plate comprises a laminated base body and a release film, wherein the base body comprises a first area plate body and a second area plate body which are connected with each other, and the second area plate body is arranged on two sides of the first area plate body;
the first area plate body is attached to a flat area of the flexible screen, which is back to the cover plate, and the second area plate body is attached to a bent area of the flexible screen, which is back to the cover plate;
wherein, first region plate body with the flat regional laminating of flexible screen, the second region plate body with the bending region laminating of flexible screen, the second region plate body is provided with the groove structure that a plurality of intervals set up, the groove structure perpendicular to the direction of buckling of the second region plate body is in the second region plate body extends, groove structure's size is 95-105 μm, the bending region comprises a plurality of not radial circular arcs, groove structure set up in the bending region camber changes the department, groove structure's quantity with the quantity of circular arc is directly proportional.
5. The electronic device with a curved screen of claim 4,
the groove structure is in a strip shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631944.7A CN108831303B (en) | 2018-06-19 | 2018-06-19 | A backplate and electronic equipment for curved surface screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631944.7A CN108831303B (en) | 2018-06-19 | 2018-06-19 | A backplate and electronic equipment for curved surface screen |
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| Publication Number | Publication Date |
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| CN108831303A CN108831303A (en) | 2018-11-16 |
| CN108831303B true CN108831303B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810631944.7A Active CN108831303B (en) | 2018-06-19 | 2018-06-19 | A backplate and electronic equipment for curved surface screen |
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| CN109285459B (en) * | 2018-11-29 | 2020-10-27 | 上海天马微电子有限公司 | Foldable display panel's backup pad and foldable display device |
| CN109360499B (en) * | 2018-12-17 | 2021-07-30 | 上海天马微电子有限公司 | Flexible display module and display device |
| CN109697940A (en) * | 2019-03-01 | 2019-04-30 | 华域视觉科技(上海)有限公司 | Flexible LED display screen and automobile comprising it |
| CN110570756A (en) * | 2019-08-08 | 2019-12-13 | 武汉华星光电半导体显示技术有限公司 | Display panel, display module and display device |
| CN110827693B (en) * | 2019-11-28 | 2022-01-25 | 昆山工研院新型平板显示技术中心有限公司 | Flexible and foldable display panel and flexible display terminal |
| CN110874988B (en) * | 2019-11-29 | 2022-05-24 | 京东方科技集团股份有限公司 | Display device |
| CN110816017A (en) * | 2019-12-11 | 2020-02-21 | 山东世拓房车集团有限公司 | Single-curved-surface sandwich composite board and mold and molding process thereof |
| CN111129086B (en) * | 2019-12-13 | 2024-06-18 | 武汉华星光电技术有限公司 | Flexible display panel and manufacturing method thereof |
| CN110930887A (en) * | 2019-12-25 | 2020-03-27 | 联想(北京)有限公司 | Preparation method and system and folding display screen |
| CN111314512B (en) * | 2020-02-24 | 2021-05-07 | Oppo广东移动通信有限公司 | Flexible screen module and mobile terminal |
| CN111416056A (en) * | 2020-03-27 | 2020-07-14 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN111584743A (en) * | 2020-05-13 | 2020-08-25 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN112150929A (en) * | 2020-09-27 | 2020-12-29 | 武汉华星光电半导体显示技术有限公司 | Backboard and display device |
| CN112419890B (en) * | 2020-11-09 | 2023-01-10 | 武汉华星光电半导体显示技术有限公司 | Backboard and display device |
| CN112562508A (en) * | 2020-12-03 | 2021-03-26 | 武汉华星光电半导体显示技术有限公司 | Curved surface display panel and display device |
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- 2018-06-19 CN CN201810631944.7A patent/CN108831303B/en active Active
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| CN108831303A (en) | 2018-11-16 |
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