CN113744642A - Support backplate and display panel - Google Patents
Support backplate and display panel Download PDFInfo
- Publication number
- CN113744642A CN113744642A CN202110967602.4A CN202110967602A CN113744642A CN 113744642 A CN113744642 A CN 113744642A CN 202110967602 A CN202110967602 A CN 202110967602A CN 113744642 A CN113744642 A CN 113744642A
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- support
- backplate
- region
- display panel
- supporting
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- 239000007787 solid Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000037303 wrinkles Effects 0.000 description 10
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating 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
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The embodiment of the invention provides a supporting back plate and a display panel, wherein the supporting back plate comprises a supporting body and a connecting part, the connecting part is of a hollow structure, and the supporting back plates on two sides of the connecting part are connected through the hollow structure. Owing to be provided with fretwork portion, when external environment's temperature risees, connecting portion in this joining region can transmit the effluvium to effectual having solved and having supported the backplate and tying up, the fold appears between easy and other retes of backplate and the problem such as bubble, the effectual quality and the reliability that improves display panel.
Description
Technical Field
The invention relates to the technical field of display panel manufacturing, in particular to a supporting back plate and a display panel.
Background
With the increasing manufacturing technology of display panels, people have increasingly high requirements on the quality and the service performance of the display panels and the display devices.
Nowadays, the mainstream display screens mainly include Organic Light-Emitting Diode (OLED) display screens and liquid crystal display screens. Because the self-luminous performance of OLED display screen, saved the backlight unit that the consumption is high than liquid crystal display, and widely used. For each manufacturer, especially for flexible panels, it is a primary problem to increase the yield. In the traditional preparation process, the back plate is generally attached firstly, and then the back plate is bound, so that the performance requirement on the back plate in the process is high. Because the material of backplate that now uses has higher thermal expansion coefficient, the laminating is accomplished the back, and the backplate of higher expansion coefficient is in the back of binding, in case the temperature rise of the environment that display panel used, temperature rise can make backplate and other rete be heated expansion, finally leads to the volume to increase to make the backplate easily and other rete between form the fold and form the problem such as bubble, and then influenced display panel's quality and reliability.
In summary, in the conventional display panel, especially for the flexible display panel, the material of the back plate generally has a high thermal expansion coefficient, and when the ambient temperature rises, the back plate is easily expanded at a high temperature, thereby causing problems such as wrinkles and blisters between the back plate and other film layers. The reliability of the display panel is reduced.
Disclosure of Invention
Embodiments of the present invention provide a supporting backplane and a display panel, so as to solve the problem that a backplane in an existing display panel is prone to form wrinkles or bubbles between the backplane and other film layers after being heated and expanded, thereby reducing reliability and quality of the display panel.
In order to solve the above technical problem, the technical method provided by the embodiment of the present invention is as follows:
in a first aspect of the embodiments of the present invention, a support backplate is provided, including:
including the support region and set up in the connection area of support region one side, the support backplate includes:
a support body disposed within the support region; and the number of the first and second groups,
the connecting part is arranged in the connecting area and is used for connecting the support bodies on two sides of the connecting part;
wherein, the connecting part is of a hollow structure.
According to an embodiment of the invention, the hollowed-out structure includes a connecting solid portion and a hollowed-out portion, and the connecting solid portion is connected with the supporting body.
According to an embodiment of the present invention, the connecting solid portion includes a plurality of connecting bars crossing each other, and two ends of the connecting bars are connected to the supporting body correspondingly.
According to an embodiment of the present invention, the connecting bar and the corresponding side of the supporting body form a supporting triangle structure.
According to an embodiment of the present invention, an end surface of the connecting body portion is flush with a corresponding one-side supporting plane of the supporting body.
According to an embodiment of the present invention, the connecting solid portion is an annular solid portion, and a plurality of the annular solid portions overlap each other.
According to an embodiment of the present invention, the areas of the hollow portions corresponding to the annular solid portions are different.
According to an embodiment of the invention, the annular solid part is a plurality of semicircles which are symmetrically arranged, two ends of each semicircle are connected with the support body, and the tops of the semicircles are overlapped with the tops of the adjacent semicircles.
According to an embodiment of the present invention, the support body includes a first support body and a second support body, the connection portion is disposed between the first support body and the second support body, and a support area of the first support body is larger than an area of a connection region of the connection portion.
According to a second aspect of the embodiments of the present invention, there is also provided a display panel, including a supporting backplane; and the number of the first and second groups,
the display module is arranged on the supporting back plate;
the support backboard is provided with the hollow connecting part, and therefore the problem that the display panel is prone to thermal expansion is effectively solved.
In summary, the embodiments of the present invention have the following beneficial effects:
the embodiment of the invention provides a supporting back plate and a display panel. Due to the fact that the hollow-out portion is arranged, when other film layers, adhesive glue or the display panel is arranged on the hollow-out portion, even if the temperature of the external environment rises, the supporting backboard in the connecting area cannot or is less affected by the temperature to deform greatly, the problems that when the supporting backboard is tied up, wrinkles, bubbles and the like occur between the backboard and the other film layers easily are solved, and the quality and the reliability of the display panel are effectively improved.
Drawings
The technical solution and other advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic decoding flow chart of a decoding method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another decoding process provided in the embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a logic operation corresponding to the decoding method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a decoding process according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another decoding process provided in the embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
With the continuous improvement of the display panel preparation technology, people have higher and higher requirements on the comprehensive performance and quality of the display panel. When each display panel is prepared and formed, the required product is finally obtained after multi-pass preparation process treatment.
The quality of the display panel is related to the manufacturing process on one hand and the selected manufacturing material on the other hand. In the conventional display panel, a material selected for a support backplate of the display panel is usually a Cyclic Olefin Polymer (COP), which generally has a high coefficient of thermal expansion, and after the backplate is assembled, other processes, such as binding and the like, need to be performed on the backplate. In the binding process, the material needs to be heated to a certain extent, and after the backboard material is heated, the thermal expansion coefficient of the cycloolefin polymer is 4-5 times that of the common material, so that the volume expansion of the backboard is easily caused, and the quality problem of wrinkles or bubbles appears on the film layer adhered to the backboard or the film layer arranged near the binding area, thereby seriously affecting the quality and the reliability of the display panel and being not beneficial to the improvement of the comprehensive performance of the panel.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a membrane module prepared in the prior art. The module structure includes a back plate 100, a pressure sensitive adhesive 101, a polyimide layer 102, and a driving chip 105. Wherein a pressure sensitive adhesive 101 is disposed on the back sheet 100, a polyimide layer 102 is disposed on the pressure sensitive adhesive 101, and at the same time, a driving chip 105 is disposed on the polyimide layer 102. The material of the back plate is a material with a high thermal expansion coefficient, and when the module is subjected to binding process treatment, the back plate 100 is easily subjected to volume expansion after being heated, so that the problem of wrinkles between the back plate 100 and the pressure-sensitive adhesive 101 layer is caused, and a first wrinkle area 104 and a second wrinkle area 103 are formed. The different wrinkle regions are all caused by the expansion of the film layer due to heating, and the display panel is easily failed by the formed plurality of different wrinkle regions, so that the performance of the display panel is reduced.
The embodiment of the application provides a support backplate and display panel, can improve effectively in the technological process of preparation display panel, problem such as fold or bubble appear easily at higher temperature in backplate and each rete.
Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of a supporting backplate according to an embodiment of the present application. In the embodiment of the present application, the support back plate includes a support region 20 and a connection region 203, and the connection region 203 may be disposed at a position of one side of the support region 20. In the embodiment of the present application, the connection region 203 may be disposed in a region between two support back plates, that is, the connection region 203 may divide the support region 20 into an upper support region and a lower support region, such as the first support region 2011 and the second support region 2021. The first support area 2011 and the second support area 2021 are connected by the connection area 203, thereby forming the entire support backplane.
In the embodiment of the present application, since the supporting backplane needs to be bonded in the subsequent process, when the supporting backplane is set, the area of the first supporting region 2011 may be larger than the area of the second supporting region 2021, and meanwhile, the areas of the first supporting region 2011 or the second supporting region 2021 are both larger than the area of the connection region 203. Thereby the structure of the support backboard is arranged more reasonably.
Specifically, the material of the support backplane provided in the embodiment of the present application may be a cyclic olefin polymer, and the material in the connection region 203 may be the same as the material of the support backplane.
The support backplate in the embodiment of the present application includes a support body, wherein the support body is exemplified by a first support backplate 201 and a second support backplate 202. The support backplate in the embodiment of the present application further includes a connection portion 204. The connecting portion 204 is disposed in the connecting region 203, and the first supporting backplate 201 and the second supporting backplate 202 are correspondingly disposed in the respective supporting regions. And two ends of the connecting portion 204 are respectively and correspondingly connected with the first supporting back plate 201 and the second supporting back plate 202, and finally form a complete structure of the supporting back plate in the embodiment of the present application.
In conventional constructions, the connecting region 203 is a fully slotted hollowed-out design. In the embodiment of the present invention, when the connection portion 204 is disposed, a plane of the connection portion 204 can be flush with the supporting surface of the same side of the first supporting backplate 201 and the second supporting backplate 202, so that the same supporting plane is provided on one side, and the film layer on one side of the supporting surface can be better supported and fixed.
Specifically, the connecting portion 204 provided in the embodiment of the present application is a hollow structure. Owing to set up to hollow out construction, when setting up other retes in this region, or bind the technology in this region during, this hollow out construction can effectually on the one hand spill the heat, prevents that the inside high temperature of rete, and on the other hand, the connection entity in this hollow out construction can transmit the temperature to further heat dissipation that improves the temperature, with the performance of assurance panel.
Preferably, the connecting portion 204 in the embodiment of the present application includes a connecting solid portion 2044 and a hollow portion 2043. The support backplate that regional department set up about will be connected through connecting portion 204, simultaneously, connecting portion 204 still can support the rete that sets up above that to can transmit the heat that produces in the preparation process, prevent that the inside high temperature of rete from arousing the rete quality problems such as fold and swell, and then effectual improvement panel performance.
The connection solid portions 2044 may be arranged in a plurality of intersecting connection bars, which intersect with each other to form a grid structure. In the embodiment of the present invention, the connection solid portions 2044 are exemplified by the first connection bars 2041 and the second connection bars 2042. First connecting strip 2041 and second connecting strip 2042 distribute each other crisscross, simultaneously, there is certain angle between first connecting strip 2041 and second connecting strip 2042 and the corresponding edge of first support backplate 201 and second support backplate 202, in order to guarantee the connection effect, in this application embodiment, the angle of the contained angle between first connecting strip 2041 and second connecting strip 2042 and the side that corresponds is not 90, like this, when first support backplate 201 and second support backplate 202 take place to buckle, first connecting strip 2041 and second connecting strip 2042 can warp along with it to a certain extent, and then slow down the stress concentration problem in the support backplate.
Each of the first connecting strips 2041 and the second connecting strips 2042 may be disposed at equal intervals in the connecting region 203, that is, the distance between two adjacent first connecting strips 2041 or two adjacent second connecting strips 2042 is the same. The first connecting bar 2041 and the second connecting bar 2042 form an "X" shape in the connecting region 203. Also, an intersection point a between the two interleaved first connecting bars 2041 and second connecting bar 2042 may be a midpoint of the corresponding edge. Therefore, certain symmetry exists in the connecting region 203, and the distribution problem of internal stress is effectively reduced.
When setting up other retes on this support backplate to when binding the technology to it, the rete that sets up in connection area 203 when the temperature risees, the temperature can be released along latticed bar structure, and then effectually avoided backplate or other retes to lead to inside fold or the bulge scheduling problem to appear of panel because the phenomenon of the inflation of material under high temperature. Therefore, the back plate provided by the embodiment of the application effectively solves the problems of wrinkles and the like caused by the slotting region of the back plate.
Further, the first connecting strip 2041 and the second connecting strip 2042 form a triangular structure at the corresponding side, and the triangular structure can play an effective supporting role. In the present embodiment, when the triangular structure of the support is arranged, the connection point a, i.e. a vertex of the triangle, can be arranged at the middle position of the connection region 203, so as to ensure that the connection region 203 has a certain symmetry.
Preferably, when the first connecting bar 2041 and the second connecting bar 2042 are provided, the width of the first connecting bar 2041 and the width of the second connecting bar 2042 may be provided to be the same width. Like this, after the rete that sets up in this region is heated, everywhere can reach the same effect to thermal transmission, simultaneously, because the thickness of connecting strip everywhere is the same, even the connecting strip takes place to expand, its inflation effect can keep unanimous on the whole, and then has guaranteed the uniformity of panel performance.
Further, when the first connecting bar 2041 and the second connecting bar 2042 are arranged, the first connecting bar 2041 and the second connecting bar 2042 are intersected to form the hollow portions 2043, wherein the opening areas of the hollow portions 2043 can be set to be the same, or the opening area of the hollow portion 2043 corresponding to the center of the connecting region 203 is larger than the opening area of the hollow portion 2043 corresponding to the two side regions, so that the heat dissipation effect of the support backboard and other film layers is ensured, and the reliability of the display panel is ensured.
As shown in fig. 3, fig. 3 is a schematic structural diagram of another supporting backplate provided in the embodiment of the present application. The support backplate includes a first support backplate 201, a second support backplate 202, and a connecting portion 204. Specifically, the first support backplate 201 is connected to the second support backplate 202 through the connecting portion 204.
Meanwhile, in conjunction with the schematic structural diagram of the support backplate in fig. 2, when the support backplate in fig. 3 is arranged, in the connection region 203, the solid connection portions 204 are arranged as a plurality of annular solid portions. Such as a first annular solid portion 301 and a second annular solid portion 302. One side of the first annular solid portion 301 is connected to the side of the first support backplate 201, one side of the second annular solid portion 302 is connected to the side of the second support backplate 202, and meanwhile, the first annular solid portion 301 and the second annular solid portion 302 are overlapped to form a plurality of contact points through overlapping, so that the first annular solid portion 301 and the second annular solid portion 302 are connected, and the first support backplate 201 and the second support backplate 202 are connected. When the first annular solid portion 301 and the second annular solid portion 302 are overlapped and connected, one contact point or two contact points may be provided, and in particular, the arrangement may be set according to an actual product. And will not be described in detail herein.
Wherein, when entity connecting portion 204 set up to annular entity portion, arbitrary two adjacent rings all overlap each other to with all annular entity portion interconnect that set up in the linking area 203, when setting up other retes and binding in this region again, annular entity portion not only can improve the toughness of supporting the backplate, can also effectually transmit the heat simultaneously, and then effectually avoided the backplate to take place the inflation after being heated and the fold scheduling problem between the rete appears, final effectual display panel's comprehensive properties that has improved.
Further, as shown in fig. 4, fig. 4 is a schematic structural diagram of another supporting backplate provided in the embodiment of the present application. In the embodiment of the present application, when the connecting portions 204 are provided, the connecting portions 204 are provided as annular connecting portions, and each annular connecting portion is semicircular. Such as a first semi-circular solid portion 401 and a second semi-circular solid portion 402.
When each semicircular solid part is connected, the semicircular solid parts corresponding to each other in the upper and lower direction are connected in a tangent point manner, and the semicircular solid parts opposite in the left and right direction are connected in an overlapped manner, so that the semicircular solid parts are all connected together.
Specifically, the vertex of the first semicircular solid portion 401 is connected to the vertex of the second semicircular solid portion 402, and is connected to the semicircular solid portions on the left and right sides of the semicircular solid portion, as shown in the connection structure in fig. 4. After the setting is finished, the areas of the hollow areas between the two adjacent semi-circular solid parts can be the same or different, and the setting can be specifically carried out according to actual products.
When the support backboard is a semicircular annular solid part, the two ends of the semicircular ring are correspondingly connected with the side edges of the support backboard at the same side, so that the support backboard at the upper region and the lower region is connected to ensure the support performance of the support backboard.
As shown in fig. 5, fig. 5 is a schematic structural diagram of another supporting backplate according to an embodiment of the present application. In the embodiment of the present application, in combination with the structure in the above drawings, the connecting portion is also configured as a structure in which a plurality of semicircles are connected to each other. However, in the embodiment of the present application, two adjacent semicircles are tangent to each other, that is, two adjacent semicircles are connected by a tangent point, so that the arrangement of the entity portions of the semicircles in the connection region can be more regular. When the corresponding film layer or the supporting back plate in the area is heated, the heat can be better dissipated. The sizes of the semi-circles can be set to be the same, and the specific structure can be set according to actual products, which is not described in detail herein.
Further, the embodiment of the present application further provides a display panel, and specifically, the display panel includes a supporting backboard and a display module. The display module is arranged on the support backboard, and the structure of the support backboard provided in the embodiment of the application is the backboard structure described above. And a hollow grid structure is arranged in the connecting area. Meanwhile, the material of the support back plate provided in the embodiment of the present application may be selected from cyclic olefin polymers. When the binding process of the display panel, the hollow grid structure is arranged in the connecting area, so that the support back plate has a good heat dissipation effect, the solid connecting part in the connecting area can dissipate heat, the problems that the back plate and other film layers are prone to wrinkling or bulge foaming and the like are effectively solved, and the quality and the reliability of the display panel are effectively improved.
The supporting back plate and the display panel provided by the embodiment of the invention are described in detail, and the principle and the embodiment of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A support backplate, comprising a support region and a connection region disposed at one side of the support region, wherein the support backplate comprises:
a support body disposed within the support region; and the number of the first and second groups,
the connecting part is arranged in the connecting area and is used for connecting the support bodies on two sides of the connecting part;
wherein, the connecting part is of a hollow structure.
2. The support backboard according to claim 1, wherein the hollowed-out structure comprises a connecting solid part and a hollowed-out part, and the connecting solid part is connected with the support body.
3. The support backboard according to claim 2, wherein the connecting solid portion comprises a plurality of connecting bars which are mutually crossed, and two ends of the connecting bars are correspondingly connected with the support body.
4. The support backplate of claim 3, wherein the connecting bar and the corresponding side of the support body form a support triangular structure.
5. The support backplate of claim 2, wherein an end surface of the connecting body portion is flush with a corresponding one-side support plane of the support body.
6. The support backplate of claim 2, wherein the connecting solid portion is an annular solid portion, and a plurality of annular solid portions overlap each other.
7. The support backplate of claim 6, wherein the corresponding hollowed-out portions are different in area between the annular solid portions.
8. The support backplate of claim 6, wherein the annular solid portion is a plurality of semi-circles symmetrically arranged, two ends of each semi-circle are connected with the support body, and the top of each semi-circle overlaps with the top of the adjacent semi-circle.
9. The support backplate of claim 1, wherein the support body comprises a first support backplate and a second support backplate, the connection portion is disposed between the first support backplate and the second support backplate, and the support area of the first support backplate is larger than the area of the connection region of the connection portion.
10. A display panel, comprising:
a support backing plate; and the number of the first and second groups,
the display module is arranged on the supporting back plate;
wherein the support backing sheet is according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967602.4A CN113744642A (en) | 2021-08-23 | 2021-08-23 | Support backplate and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967602.4A CN113744642A (en) | 2021-08-23 | 2021-08-23 | Support backplate and display panel |
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| Publication Number | Publication Date |
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| CN113744642A true CN113744642A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110967602.4A Pending CN113744642A (en) | 2021-08-23 | 2021-08-23 | Support backplate and display panel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170303414A1 (en) * | 2015-05-28 | 2017-10-19 | Boe Technology Group Co. Ltd. | Foldable display device |
| CN108230907A (en) * | 2018-01-03 | 2018-06-29 | 上海天马有机发光显示技术有限公司 | Flexible display screen and display device |
| CN111722674A (en) * | 2020-06-16 | 2020-09-29 | 京东方科技集团股份有限公司 | Backplate, flexible display screen and electronic equipment of display module assembly |
| CN111986571A (en) * | 2020-08-06 | 2020-11-24 | 武汉华星光电半导体显示技术有限公司 | Flexible display screen |
| CN112419890A (en) * | 2020-11-09 | 2021-02-26 | 武汉华星光电半导体显示技术有限公司 | Backboard and display device |
-
2021
- 2021-08-23 CN CN202110967602.4A patent/CN113744642A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170303414A1 (en) * | 2015-05-28 | 2017-10-19 | Boe Technology Group Co. Ltd. | Foldable display device |
| CN108230907A (en) * | 2018-01-03 | 2018-06-29 | 上海天马有机发光显示技术有限公司 | Flexible display screen and display device |
| CN111722674A (en) * | 2020-06-16 | 2020-09-29 | 京东方科技集团股份有限公司 | Backplate, flexible display screen and electronic equipment of display module assembly |
| CN111986571A (en) * | 2020-08-06 | 2020-11-24 | 武汉华星光电半导体显示技术有限公司 | Flexible display screen |
| CN112419890A (en) * | 2020-11-09 | 2021-02-26 | 武汉华星光电半导体显示技术有限公司 | Backboard and display device |
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Application publication date: 20211203 |
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