CN113178531B - Display device and preparation method thereof - Google Patents

Display device and preparation method thereof Download PDF

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Publication number
CN113178531B
CN113178531B CN202110388750.0A CN202110388750A CN113178531B CN 113178531 B CN113178531 B CN 113178531B CN 202110388750 A CN202110388750 A CN 202110388750A CN 113178531 B CN113178531 B CN 113178531B
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flexible
heat dissipation
cover plate
display panel
display device
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CN202110388750.0A
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CN113178531A (en
Inventor
张杨
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • 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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/841—Self-supporting sealing arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/87—Arrangements for heating or cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Abstract

The invention relates to a display device and a preparation method thereof. The display device includes: flexible display panel, flexible apron and rigid heat dissipation layer. The flexible cover plate is made of flexible materials, the rigid heat dissipation layer is made of rigid materials, when the display device is assembled, the flexible display panel is attached to the flexible cover plate to form a semi-finished product, then the semi-finished product is attached to the rigid heat dissipation layer in a roller attaching mode, and therefore the form of the display device is determined by the form of the rigid heat dissipation layer instead of the flexible cover plate, and the problems that when the display device is assembled, the flexible display panel in an arc area is prone to being broken in the process of attaching the rigid cover plate due to the fact that the form of the display device is determined by the rigid cover plate in the prior art can be solved. In addition, the pressure of the roller is controllable, so that the phenomenon that the display effect of the display device is influenced by the fact that the flexible display panel is broken due to overlarge pressure in the laminating process can be prevented.

Description

Display device and preparation method thereof
Technical Field
The application relates to the technical field of display, in particular to a display device and a preparation method thereof.
Background
Organic Light-Emitting display devices (also called Organic Light-Emitting diodes, abbreviated as OLEDs) are also called Organic electroluminescent display devices and Organic Light-Emitting semiconductors. The OLED has the advantages of low voltage requirement, high power saving efficiency, fast response, light weight, thin thickness, simple structure, low cost, wide viewing angle, almost infinite contrast, low power consumption, extremely high response speed, and the like, and has become one of the most important display technologies today.
In the modern communication industry, the market demand of products such as mobile phones, televisions, flat panels, notebooks, digital cameras and the like is increasing, and various display equipment forms are no longer restricted by a plane but are marched towards forms such as curved surfaces, cambered surfaces, four curved surfaces and the like. The smooth cambered surface design can provide higher sensory experience for users, and the frame can be hidden under the screen of the cambered area under the extreme condition, so that the display effect of a full screen is realized.
The arc screen is limited by the existing rigid Cover plate (CG for short) bonding process, and the arc screen is very difficult to be used on the most serious roads. The specific reason is that the form of the display device on the market is determined by the rigid cover plate, the 3D bonding process of the rigid cover plate and the flexible display panel is completed by extrusion, the material of the pressure head in the extrusion process is acrylic glue, the material is extremely non-uniform in bonding, and the pressure applied to different areas of the whole flexible display panel is different, so that the flexible display panel in the arc area is easy to break in the bonding process of the rigid cover plate and the flexible display panel, and the phenomenon is more obvious when the arc area is larger. Therefore, a new type of display device is sought to solve the above problems.
Disclosure of Invention
The invention aims to provide a display device, which can solve the problems that a flexible display panel is easy to break and the like in the cover plate attaching process in the existing display device.
In order to solve the above problems, the present invention provides a display device including: a flexible display panel; the flexible cover plate is attached to the surface of one side of the flexible display panel; the rigid heat dissipation layer is attached to the surface of one side, away from the flexible cover plate, of the flexible display panel; wherein the elastic modulus of the rigid heat dissipation layer is greater than the elastic modulus of the flexible cover plate.
Further, the elastic modulus of the flexible cover plate is less than or equal to 20 Gpa; the elastic modulus of the rigid heat dissipation layer is more than 20 Gpa.
Further wherein an edge of the flexible cover sheet covers an edge of the flexible display panel; the edge of the flexible display panel covers the edge of the rigid heat dissipation layer.
Further wherein the rigid heat sink layer comprises: a metal heat dissipation layer; the buffer layer is arranged on the metal heat dissipation layer; and the adhesive layer is arranged between the buffer layer and the flexible display panel.
Further, the thickness of the metal heat dissipation layer ranges from 500um to 1000 um.
Further, the display device further includes: and the rigid layer is integrally formed with the rigid heat dissipation layer and is positioned on one side of the flexible display panel away from the rigid heat dissipation layer.
Further, the rigid layer comprises stainless steel or titanium alloy; the thickness range of the rigid layer is 200um-1000 um.
Further, the display device further includes: and the protective layer is arranged on the surface of one side, far away from the flexible display panel, of the flexible cover plate.
Furthermore, the display device is defined with a flat area and arc areas arranged at two ends of the flat area, and the thickness of the flexible cover plate in the flat area is greater than or equal to that of the flexible cover plate in the arc areas.
In order to solve the above problems, the present invention further provides a method for manufacturing a display device according to the present invention, including the steps of: providing a flexible display panel; providing a flexible cover plate, coating optical cement on one side of the flexible cover plate, and attaching the flexible cover plate to the surface of one side of the flexible display panel in a planar roller attaching mode to form a semi-finished product; providing a rigid heat dissipation layer, and attaching the semi-finished product to the rigid heat dissipation layer in a roller attaching mode to form the display device; the rigid heat dissipation layer is attached to the surface of one side, far away from the flexible cover plate, of the flexible display panel.
The invention has the advantages that: the invention relates to a display device and a preparation method thereof, wherein a flexible cover plate is made of flexible materials, a rigid heat dissipation layer is made of rigid materials, when the display device is assembled, a flexible display panel is attached to the flexible cover plate to form a semi-finished product, and then the semi-finished product is attached to the rigid heat dissipation layer in a roller attaching mode, so that the form of the display device is determined by the form of the rigid heat dissipation layer instead of the flexible cover plate, and the problems that the flexible display panel in an arc area is easy to break in the attaching process of the flexible display panel and the rigid cover plate when the display device is assembled due to the fact that the form of the display device is determined by the rigid cover plate in the prior art can be solved. In addition, the pressure of the roller is controllable, so that the phenomenon that the display effect of the display device is influenced by the breakage of the flexible display panel caused by overlarge pressure in the laminating process can be prevented.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a display device according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of a rigid heat sink layer of the present invention;
FIG. 3 is a view showing the steps for producing a display device in example 1 of the present invention;
fig. 4 is a schematic structural view of a display device according to embodiment 2 of the present invention;
fig. 5 is a schematic structural view of a display device according to embodiment 3 of the present invention.
Description of reference numerals:
100. display device 101, flat area
102. Arc zone
1. Flexible display panel 2 and flexible cover plate
3. Rigid heat dissipation layer 4 and optical cement
5. Rigid layer 6, protective layer
7. Pressure-sensitive adhesive
11. Flexible backboard 12 and flexible display screen
13. Polaroid
31. Metal heat dissipation layer 32, buffer layer
33. Glue layer
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to make and use the present invention in a complete manner, and is provided for illustration of the technical disclosure of the present invention so that the technical disclosure of the present invention will be more clearly understood and appreciated by those skilled in the art how to implement the present invention. The present invention may, however, be embodied in many different forms of embodiment, and the scope of the present invention should not be construed as limited to the embodiment set forth herein, but rather construed as being limited only by the following description of the embodiment.
The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are used for explaining and explaining the present invention, but not for limiting the scope of the present invention.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. In addition, the size and thickness of each component shown in the drawings are arbitrarily illustrated for convenience of understanding and description, and the present invention is not limited to the size and thickness of each component.
Example 1
As shown in fig. 1, the present embodiment provides a display device 100, which includes: a flexible display panel 1, a flexible cover plate 2 and a rigid heat sink layer 3.
As shown in fig. 1, the flexible display panel 1 includes: flexible backplate 11, flexible display 12 and polaroid 13.
The flexible back plate 11 can be a flexible substrate and has the function of blocking water and oxygen, and the flexible back plate 11 has good impact resistance and can effectively protect the flexible display screen 12. The material of the flexible back plate 11 includes one or more of silicon dioxide, polyester resin, polyethylene, polypropylene, polystyrene, polylactic acid, polyethylene terephthalate, polyimide or polyurethane.
Wherein, the flexible display screen 12 is arranged on the surface of the flexible back plate 11 facing to the side of the flexible cover plate 2. The flexible display 12 includes a thin film transistor, a first electrode, a light emitting layer, a second electrode, and an encapsulation layer, which are not described herein again. The thin film transistor can select a top gate structure and can also select a bottom gate structure.
The polarizer 13 is disposed on a surface of the flexible display 12 facing the flexible cover 2. Wherein the polarizer 13 includes: a first TAC layer (triacetylcellulose), a PVA layer (polyvinyl alcohol), and a second TAC layer (triacetylcellulose). Wherein the PVA layer mainly plays a role of polarizing. Because the PVA layer is very easy to hydrolyze, set up first TAC layer in one side of PVA layer, set up second TAC layer in the opposite side of PVA layer, utilize high luminousness, the good and possess advantages such as mechanical strength of first TAC layer and second TAC layer, protection PVA layer prevents that the PVA layer from hydrolysising, promotes polaroid 13's physical properties.
The display device 100 of the present embodiment further includes an optical paste 4. The optical cement 4 is disposed between the flexible display panel 1 and the flexible cover 2. The optical adhesive 4 is mainly used for bonding the flexible cover plate 2 to the flexible display panel 1.
As shown in fig. 1, a flexible cover 2 is attached to a surface of one side of the flexible display panel 1, and an edge of the flexible cover 2 covers an edge of the flexible display panel 1. The material of flexible apron 2 includes: one of flexible glass and high polymer organic film. The flexible Glass can be Ultra-thin Glass (English name: Ultra-thin Glass, short for UTG). Therefore, the flexibility of the flexible cover plate 2 can be increased, and the problems that the flexible display panel 1 of the arc area 102 is prone to fracture and the like due to uneven pressure in the laminating process of the flexible cover plate 2 and the flexible display panel 1 and the laminating process of the rigid heat dissipation layer 3 in the later period are avoided.
As shown in fig. 1, the display device 100 in this embodiment defines a flat area 101 and arc areas 102 disposed at two ends of the flat area 101. The thickness of the flexible cover plate 2 of the straight area 101 is larger than or equal to that of the flexible cover plate 2 of the arc area 102. In this embodiment, the thickness of the flexible cover 2 in the straight region 101 is equal to the thickness of the flexible cover 2 in the arc region 102. In other embodiments, the thickness of the flexible cover 2 of the flat region 101 is greater than the thickness of the flexible cover 2 of the arc region 102. Therefore, the strength of the flexible cover 2 of the flat area 101 can be increased, and the flexible display panel 1 can be better protected.
As shown in fig. 1, the rigid heat dissipation layer 3 is attached to a surface of the flexible display panel 1 on a side away from the flexible cover 2, and an edge of the flexible display panel 1 covers an edge of the rigid heat dissipation layer 3.
As shown in fig. 2, the rigid heat dissipation layer 3 includes: a metal heat dissipation layer 31, a buffer layer 32 and a glue layer 33.
Wherein, the material of the metal heat dissipation layer 31 includes: one or more of copper, aluminum, iron and lead. In this embodiment, the material of the metal heat dissipation layer 31 is copper, and in other embodiments, the material of the metal heat dissipation layer 31 may also be stainless steel. Wherein the thickness range of the metal heat dissipation layer 31 is 500um-1000 um. In this embodiment, the thickness of the metal heat dissipation layer 31 is 800 um. In the present embodiment, the rigidity of the rigid heat dissipation layer 3 is increased by increasing the thickness of the metal heat dissipation layer 31, so that the rigid heat dissipation layer 3 is not easily deformed, and thus, when the display device 100 is assembled, the shape of the flexible display panel 1 and the flexible cover 2 thereon is determined by the shape of the rigid heat dissipation layer 3. Instead of the flexible cover 2 determining the form of the display device 100, it is able to avoid the problem that the flexible display panel of the arc region 102 is easily broken during the process of bonding the rigid cover and the flexible display panel when the display device 100 is assembled due to the rigid cover in the prior art.
Wherein, the buffer layer 32 is disposed on the metal heat dissipation layer 31. The buffer layer 32 in this embodiment is made of foam, and mainly serves to buffer stress. In other embodiments, the buffer layer 32 may also be made of other materials, and the disclosure does not limit the material of the buffer layer 32.
The glue layer 33 is disposed between the buffer layer 32 and the flexible display panel 1. Which is mainly used for bonding a rigid heat sink layer 3 to the flexible display panel 1.
As shown in fig. 3, this embodiment further provides a method for manufacturing the display device 100 of this embodiment, which specifically includes the following steps: s1, providing a flexible display panel 1; s2, providing a flexible cover plate 2, coating optical cement 4 on one side of the flexible cover plate 2, and attaching the flexible cover plate 2 to the surface of one side of the flexible display panel 1 in a planar roller attaching mode to form a semi-finished product; and S3, providing a rigid heat dissipation layer 3, and attaching the semi-finished product to the rigid heat dissipation layer 3 in a roller attaching manner to form the display device 100; the rigid heat dissipation layer 3 is attached to the surface of the flexible display panel 1 on the side away from the flexible cover plate 2.
The flexible cover plate 2 of the embodiment is made of a flexible material, and the rigid heat dissipation layer 3 is made of a rigid material. Wherein the elastic modulus of the flexible cover plate 2 is less than or equal to 20 Gpa. The thickness of the flexible cover plate 2 is less than or equal to 50 um. Whereby the rigidity of the flexible cover 2 can be reduced. The elastic modulus of the rigid heat dissipation layer 3 is greater than that of the flexible cover plate 2. Specifically, in this embodiment, the elastic modulus of the rigid heat dissipation layer is greater than 20 Gpa. When the display device 100 of the embodiment is assembled, the flexible display panel 1 and the flexible cover 2 are bonded to form a semi-finished product, and then the semi-finished product is bonded to the rigid heat dissipation layer 3 by means of roller bonding, so that the form of the display device 100 is determined by the form of the rigid heat dissipation layer 3, rather than the form of the flexible cover 2, and therefore the problems that the flexible display panel 1 and the rigid cover of the arc region 102 are easily broken in the bonding process when the display device 100 is assembled due to the fact that the form of the display device 100 is determined by the rigid cover in the prior art can be avoided. Moreover, the pressure of the roller of the embodiment is controllable, so that the display effect of the display device 100 can be prevented from being affected by the fracture of the flexible display panel 1 caused by the overlarge pressure in the attaching process.
Example 2
As shown in fig. 4, the present embodiment includes most of the technical features of embodiment 1, and the present embodiment is different from embodiment 1 in that: the display device 100 of the present embodiment further includes a rigid layer 5. The rigid layer 5 and the rigid heat dissipation layer 3 are integrally formed and located on one side, far away from the flexible display panel 1, of the rigid heat dissipation layer 3. Wherein the rigid layer 5 is made of: stainless steel or titanium alloy; the thickness range of the rigid layer 5 is 200um-1000 um. The thickness of the rigid layer 5 in this embodiment is 500 um. The rigidity of the rigid heat dissipation layer 3 is increased by adding the rigid layer on the side of the rigid heat dissipation layer away from the flexible display panel 1, so that the rigid heat dissipation layer is not easy to deform, and the shape of the flexible display panel 1 and the flexible cover plate 2 on the flexible display panel is determined by the shape of the rigid heat dissipation layer 3 when the display device 100 is assembled. Instead of the flexible cover 2 determining the form of the display device 100, it is able to avoid the problem that the flexible display panel of the arc region 102 is easily broken during the process of bonding the rigid cover and the flexible display panel when the display device 100 is assembled due to the rigid cover in the prior art.
Example 3
As shown in fig. 5, the present embodiment includes most of the technical features of embodiment 1, and the present embodiment is different from embodiment 1 in that: the display device 100 of the present embodiment further includes a protective layer 6. The protection layer 6 is disposed on a surface of the flexible cover 2 on a side away from the flexible display panel 1. The protective layer 6 is made of glass made of PET, so that the flexible cover plate 2 can be well protected, and the flexible cover plate 2 is prevented from being scratched to generate cracks in the use process of the display device 100.
The display device 100 of the present embodiment further includes a pressure-sensitive adhesive 7. The pressure sensitive adhesive 7 is arranged between the flexible cover plate 2 and the protective layer 6. The pressure-sensitive adhesive 7 may be used to adhere the protective layer 6 to the flexible cover 2, and may also be used to ensure the touch effect of the display device 100.
The display device and the manufacturing method thereof provided by the present application are described in detail above, and the principle and the embodiment of the present application are explained by applying specific examples, and the description of the above examples 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, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (7)

1. A display device, comprising:
a flexible display panel;
the flexible cover plate is attached to the surface of one side of the flexible display panel;
the rigid heat dissipation layer is attached to the surface of one side, away from the flexible cover plate, of the flexible display panel; the rigid layer is integrally formed with the rigid heat dissipation layer and is positioned on one side, far away from the flexible display panel, of the rigid heat dissipation layer;
the display device is defined with a straight area and arc areas arranged at two ends of the straight area, and the thickness of the flexible cover plate in the straight area is larger than that of the flexible cover plate in the arc areas;
wherein the elastic modulus of the rigid heat dissipation layer is greater than the elastic modulus of the flexible cover plate; when the display device is manufactured, the flexible cover plate is firstly attached to the surface of one side of the flexible display panel to form a semi-finished product; then attaching the semi-finished product to the rigid heat dissipation layer, wherein the rigid heat dissipation layer is attached to the surface of one side, away from the flexible cover plate, of the flexible display panel;
the rigid heat dissipation layer includes:
a metal heat dissipation layer;
the buffer layer is arranged on the metal heat dissipation layer; and
and the adhesive layer is arranged between the buffer layer and the flexible display panel.
2. The display device according to claim 1,
the elastic modulus of the flexible cover plate is less than or equal to 20 Gpa;
the elastic modulus of the rigid heat dissipation layer is more than 20 Gpa.
3. The display device according to claim 1, wherein an edge of the flexible cover sheet covers an edge of the flexible display panel; the edge of the flexible display panel covers the edge of the rigid heat dissipation layer.
4. The display device according to claim 1, wherein the metal heat sink layer has a thickness in a range of 500um to 1000 um.
5. The display device according to claim 1,
the rigid layer is made of stainless steel or titanium alloy;
the thickness of the rigid layer ranges from 200um to 1000 um.
6. The display device according to claim 1, further comprising:
and the protective layer is arranged on the surface of one side, far away from the flexible display panel, of the flexible cover plate.
7. A method for manufacturing a display device according to claim 1, comprising the steps of:
providing a flexible display panel;
providing a flexible cover plate, coating optical cement on one side of the flexible cover plate, and attaching the flexible cover plate to the surface of one side of the flexible display panel in a planar roller attaching mode to form a semi-finished product; and
providing a rigid heat dissipation layer, and attaching the semi-finished product to the rigid heat dissipation layer in a roller attaching mode to form the display device; the rigid heat dissipation layer is attached to the surface of one side, away from the flexible cover plate, of the flexible display panel;
the rigid heat dissipation layer includes:
a metal heat dissipation layer;
the buffer layer is arranged on the metal heat dissipation layer; and
and the adhesive layer is arranged between the buffer layer and the flexible display panel.
CN202110388750.0A 2021-04-12 2021-04-12 Display device and preparation method thereof Active CN113178531B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN113178531B true CN113178531B (en) 2022-07-12

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106847084A (en) * 2015-10-29 2017-06-13 乐金显示有限公司 Display device and the electronic installation including the display device
CN111312075A (en) * 2020-02-28 2020-06-19 云谷（固安）科技有限公司 Display device, manufacturing method thereof, display screen and cover plate
CN112419891A (en) * 2020-11-11 2021-02-26 合肥维信诺科技有限公司 Method and apparatus for manufacturing display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106847084A (en) * 2015-10-29 2017-06-13 乐金显示有限公司 Display device and the electronic installation including the display device
CN111312075A (en) * 2020-02-28 2020-06-19 云谷（固安）科技有限公司 Display device, manufacturing method thereof, display screen and cover plate
CN112419891A (en) * 2020-11-11 2021-02-26 合肥维信诺科技有限公司 Method and apparatus for manufacturing display device

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