CN109166472A - Display screen and display device - Google Patents

Display screen and display device Download PDF

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Publication number
CN109166472A
CN109166472A CN201811163041.7A CN201811163041A CN109166472A CN 109166472 A CN109166472 A CN 109166472A CN 201811163041 A CN201811163041 A CN 201811163041A CN 109166472 A CN109166472 A CN 109166472A
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CN
China
Prior art keywords
optical cement
display screen
stress buffer
layer
stress
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Granted
Application number
CN201811163041.7A
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Chinese (zh)
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CN109166472B (en
Inventor
陈磊
刘绰
芦宁
张晓龙
金慧娇
李鹏
卢丹
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Guangzhou Guoxian Technology Co Ltd
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Yungu Guan Technology Co Ltd
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Priority to CN201811163041.7A priority Critical patent/CN109166472B/en
Publication of CN109166472A publication Critical patent/CN109166472A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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 present invention relates to a kind of display screen and display devices.Display screen includes laminated film piece, and the optical cement between adjacent diaphragms, and on the thickness direction of optical cement, optical cement includes sandwich layer and two surface layers in sandwich layer two sides, is equipped with stress buffer in either one or two of two surface layers and is open.Using the display screen of technical solution of the present invention, since the surface layer of optical cement is open equipped with stress buffer, when display screen is bent towards the side that stress buffer is open, stress buffer opening is capable of forming stress buffer region, to effectively discharge the stress of display screen, it avoids showing bad, is conducive to apply.In addition, the present invention also provides a kind of display devices including above-mentioned display screen.

Description

Display screen and display device
Technical field
The present invention relates to field of display technology, more particularly to a kind of display screen and display device.
Background technique
With the development of display technology, demand of the consumer to the high-quality of display screen is increasing.However, traditional is aobvious Display screen in the process of bending, be easy to cause display bad, is unfavorable for applying.
Summary of the invention
Based on this, it is necessary to which for how avoiding showing bad problem, providing one kind, to can be avoided display undesirable aobvious Display screen and display device.
A kind of display screen, including laminated film piece, and the optical cement between the adjacent diaphragms, in the optical cement Thickness direction on, the optical cement includes sandwich layer and two surface layers in the sandwich layer two sides, in described two surface layers Either one or two of in be equipped with stress buffer be open.
The stress buffer opening extends across the table from the surface of the optical cement in one of the embodiments, Layer.
In one of the embodiments, in the width direction of the optical cement, the stress buffer opening is extended through The optical cement.
In one of the embodiments, in the width direction of the optical cement, the stress buffer opening is along bending side To the internal stretch in the optical cement;
Preferably, the bending angle of the stress buffer opening is 30 °~60 °;
Preferably, the bending path of the stress buffer opening is in smooth curve.
In one of the embodiments, in same surface layer, stress buffer opening has multiple and is distributed in pairs,
The plane mirror symmetry that same pair of stress buffer is open about the thickness direction along the optical cement.
Preferably, from the surface of the optical cement to the inside of the optical cement, with pair stress buffer opening between Distance is gradually reduced.
The corresponding stress buffer in two surface layers is open about the sandwich layer mirror image pair in one of the embodiments, Claim.
In one of the embodiments, in same surface layer, stress buffer opening has multiple, and multiple stress buffers are opened The length or width direction of optical cement described in opening's edge are intervally arranged;
Stress buffer opening in two surface layers is not overlapped in the projection of the core layer surface.
The display screen includes central area and the edge positioned at the central area two sides in one of the embodiments, Region, the quantity that the stress buffer positioned at the central area is open are slow greater than the stress positioned at the fringe region Wash the quantity of mouth open.
The diaphragm positioned at the optical cement two sides is respectively to be located at the display screen back side in one of the embodiments, Buffer layer and supporting layer;
The material of the buffer layer in polyurethane elastomer, acrylic elastomer and silicone elastomer one Kind.
The present invention also provides the display devices of an embodiment, including above-mentioned display screen.
Work as display screen since the surface layer of optical cement is open equipped with stress buffer using the display screen of technical solution of the present invention When the side being open towards stress buffer is bent, stress buffer opening is capable of forming stress buffer region, to effectively discharge The stress of display screen, avoids showing bad, is conducive to apply.
Using the display device of technical solution of the present invention, since the surface layer of optical cement in display screen is opened equipped with stress buffer Mouthful, when display screen is bent towards the side that stress buffer is open, stress buffer opening is capable of forming stress buffer region, thus The stress for effectively discharging display screen, avoids showing bad, is conducive to apply.
Detailed description of the invention
Fig. 1 is the schematic diagram of the display screen of an embodiment of the present invention;
Fig. 2 is the stereoscopic schematic diagram of optical cement in the display screen of an embodiment of the present invention;
Fig. 3 is the enlarged diagram of optical cement in the display screen of an embodiment of the present invention;
Fig. 4 is the schematic diagram of optical cement in the display screen of another embodiment of the present invention;
Fig. 5 is the schematic diagram of optical cement in the display screen of another embodiment of the present invention;
Fig. 6 is the front schematic view of optical cement in the display screen of another embodiment of the present invention;
Fig. 7 is the schematic rear view of optical cement in the display screen of another embodiment of the present invention;
Fig. 8 is the side schematic view of optical cement in the display screen of another embodiment of the present invention;
Fig. 9 is the arrangement schematic diagram of optical cement in the display screen of another embodiment of the present invention;
Figure 10 is the side schematic view of the display screen of another embodiment of the present invention;
Figure 11 is the side schematic view of the display screen of another embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases Any and all combinations of the listed item of pass.
The present invention proposes that a kind of can be avoided shows undesirable display screen and display device.Wherein, display of the invention Screen can be OLED (Organic Light-Emitting Diode) or AMOLED (Active-matrix organic Light-emitting diode, active matrix organic light-emitting diode) display screen.Further, display screen can be flexibility Display screen.
Display screen of the invention includes laminated film piece, and the optical cement between adjacent diaphragms, in the thickness of optical cement It spends on direction, optical cement includes sandwich layer and two surface layers in sandwich layer two sides, in either one or two of two surface layers It is open equipped with stress buffer.When display screen is bent towards the side that stress buffer is open, stress buffer opening, which is capable of forming, is answered Power buffer area enables the adjacent diaphragms adhered to by optical cement are good to tie to effectively discharge the stress of display screen It is combined, and then keeps good display effect.
Wherein, diaphragm can be the diaphragm in the modular structure of display screen, such as barrier film, touch screen (TP), polaroid (POL) and cover board (Cover Flim/Glass) etc..Diaphragm may be located on the back side of display film layer, for example, buffer layer.
Wherein, the position of optical cement is unlimited, and the optical cement of any position all belongs to the scope of protection of the present invention in display screen. For example, optical cement can be located in the modular structure of display screen, the back side of display film layer can also be located at.
Furthermore it should be noted that in display screen of the invention, the sandwich layer of optical cement and the thickness on surface layer are unlimited.
Referring to Figure 1, the display screen 100 of an embodiment includes display layer group 130, is covered with above display layer group 130 Two or more diaphragms 140.There is the optical cement 110 engaged with diaphragm 140 between two neighboring diaphragm 140.Wherein, Display layer group 130 may include substrate 131, multiple light emitting pixels 132 on substrate 131 and for encapsulating light emitting pixel 132 encapsulated layer 133.Diaphragm 140 can be polaroid 141 and cover board 142.
Refer to Fig. 2 and Fig. 3, in the display screen of an embodiment of the present invention, on the thickness direction of optical cement 110, light Learning glue 110 includes sandwich layer 112 and two surface layers 114 in 112 two sides of sandwich layer, is all provided in two in two surface layers 114 There is stress buffer opening 120.
Wherein, as shown in Fig. 2, the thickness direction of optical cement 110 refers to the direction where h, the width side of optical cement 110 To the direction referred to where w.
When the bending of display screen forward direction and reversed bending, the stress buffer opening 120 in two surface layers 114 can inhale Stress is received, avoids generating fold when bending.Meanwhile stress buffer opening 120 can also generate deformation with overbending direction, avoid rousing Bubble can avoid the diaphragm in 110 two sides of optical cement in this way and remove.
On the basis of aforementioned embodiments, stress buffer opening 120 extends across surface layer from the surface of optical cement 110 114。
On the basis of aforementioned embodiments, in the width direction of optical cement 110, stress buffer opening 120, which extends, is passed through Wear optical cement 110.
On the basis of aforementioned embodiments, in same surface layer, stress buffer opening 120 has multiple and divides in pairs Cloth, plane mirror symmetry of same pair of the stress buffer opening 120 about the thickness direction along optical cement 110.
Preferably, from the surface of optical cement 110 to the inside of optical cement 120, with pair stress buffer opening 120 between Distance is gradually reduced.Wherein, the stress buffer opening 120 in Fig. 2 and Fig. 3 in wire is a pair.In addition, adjacent pairs of stress is slow It washes the distance between mouth 120 open to be gradually increased, as shown in Figures 2 and 3.Therefore, stress buffer opening 120 can be in width direction On the range that works it is larger, effectively avoid generating fold when bending.
On the basis of aforementioned embodiments, the corresponding stress buffer opening 120 in two surface layers 114 is about sandwich layer 112 mirror symmetries.
In addition, stress buffer opening 120 is the superfine narrow of hollow type not through optical cement 110 in present embodiment Crack structure, width preferably 1 microns.Certainly, the size of stress buffer opening 120 is without being limited thereto.
When making the relatively narrow stress buffer opening 120 of above-mentioned slit-type, can use following three kinds of schemes: the first, direct The release film of two sides is cut by laser and then attached in OCA glue (after solidification, and the not release film of two sides);The second, exist It is cut by laser in entire OCA film layer (release film including OCA glue and two sides after intermediate solidification);Third coats on diaphragm OCA glue precursor (being at this time liquid), solidification obtains OCA glue later, then is cut by laser.
Fig. 4 is referred to, stress buffer opening 220 is equipped in the optical cement 210 of the display screen of another embodiment of the present invention. Wherein, in the width direction of optical cement 210, stress buffer opening 220 along overbending direction optical cement 210 internal stretch. Wherein, stress buffer opening 220 extends through optical cement 210.
Preferably, the bending angle of stress buffer opening 220 is 30 °~60 °.When the display screen bending of present embodiment, Stress buffer opening 220 can provide the flowing space for the optical cement of two sides, prevent optical cement from creep occurs in bending region.
In addition, in present embodiment, the width of the partial optical glue 210 between two neighboring stress buffer opening 220 is 5mm~8mm, the width of stress buffer opening 220 are 0.05mm~0.1mm.Certainly, stress buffer opening 220 size not with This is limited.In same embodiment, the size of stress buffer opening 220 can be identical, also can be different.Several stress buffers Opening 220 can be uniformly distributed, i.e., the distance between two neighboring stress buffer opening 220 is equal.Several stress buffers are opened Mouth 220 also can be with non-uniform Distribution.
Fig. 5 is referred to, stress buffer opening 320 is equipped in the optical cement 310 of the display screen of another embodiment of the present invention. Wherein, in the width direction of optical cement 310, stress buffer opening 320 along overbending direction optical cement 310 internal stretch. Wherein, stress buffer opening 320 extends through optical cement 310.The bending path of stress buffer opening 320 is in smooth curve. More preferably, the bending path of stress buffer opening 320 is in sine curve.When the display screen bending of present embodiment, stress buffer Opening 320 can provide the flowing space for the optical cement of two sides, prevent optical cement from creep occurs in bending region.
In addition, in present embodiment, the width of the partial optical glue 310 between two neighboring stress buffer opening 320 For 3mm~6mm, the width of stress buffer opening 320 is 0.05mm~0.1mm.Certainly, stress buffer opening 320 size not As limit.In same embodiment, the size of stress buffer opening 320 can be identical, also can be different.Several stress are slow Washing mouth 320 open can be uniformly distributed, i.e., the distance between two neighboring stress buffer opening 320 is equal.Several stress buffers Opening 320 also can be with non-uniform Distribution.
Refer to Fig. 6~Fig. 8, in the display screen of another embodiment of the present invention, on the thickness direction of optical cement 410, Optical cement 410 is including sandwich layer 412 and two surface layers 414 in 412 two sides of sandwich layer, in two in two surface layers 414 Equipped with stress buffer opening 420.
The optical cement 410 of present embodiment is three-decker, and centre is substrate, and the two sides of substrate are glue-line.That is, this implementation Sandwich layer 412 in mode is traditional substrate.Substrate is used to improve the hardness of optical cement 410.Substrate is the prior art, herein It does not repeat them here.
In same surface layer 414, stress buffer opening 420 has multiple, and multiple stress buffers opening 420 is along optical cement 410 Length or width direction be intervally arranged;In two surface layers 414 stress buffer opening 412 surface of sandwich layer projection not It is overlapped.
Above embodiment display screen dynamic bend when, due to stress buffer opening 420 presence, either in it is curved also It is that the deformation of optical cement 410 is in the horizontal direction by the curvilinear flow along strip to adjacent in the bending process of excurvation It is released in the gap (i.e. stress buffer opening 420) of adhesive tape, prevents the bending region of optical cement from fold occur.
More preferably, projection seamless connection of the stress buffer opening in two surface layers 414 on 412 surface of sandwich layer.Also It is to say, the structure and thickness of optical cement are identical.The problem of thus, there is no refractive index differences will not cause shadow to display effect It rings, so that crooked place is identical as the display effect of other positions after flexible screen dynamic is bent.
When preparing the optical cement of above embodiment, in glue material during upper and lower two layers of glue material is coated on substrate Increase jig among needle tubing and substrate, which is closed (the corresponding position of non-display area), and centre is spaced The curved groove of strip is dug through, while upper and lower two jigs intermediate curve slot is staggeredly arranged.Then it is coated, is shown so again Upper and lower faces glue material is the curved spaced apart structure of strip adhesive tape in area, and upper and lower surface glue material is staggeredly arranged.This Sample can guarantee the structure of the optical cement in viewing area it is identical (be adhesive tape, while gap), and thickness is identical.
Fig. 9 is referred to, the display screen 500 of another embodiment of the present invention including central area 510 and is located at central area The fringe region 520 of 510 two sides is greater than positioned at the quantity of the stress buffer opening 530 of central area 510 and is located at fringe region The quantity of 520 stress buffer opening 530.
When display screen 500 is bent by external force, the usual bending radius of curvature in central area 510 of display screen 500 is larger, by Central area 510 is gradually reduced to 520 bending radius of curvature of fringe region.Inventors have found that in the central area of display screen 500 The a fairly large number of stress buffer opening 530 of 510 settings, the separation of diaphragm caused by can be avoided because of optical cement extruding accumulation.And The fringe region 520 of display screen 500, can be set negligible amounts stress buffer opening 530, thus increase adjacent two diaphragm it Between zygosity.Transitional region 540 between central area 510 to fringe region 520, when being bent due to display screen 500 Radius of curvature is gradually reduced, and the stress buffer opening 530 of negligible amounts can also be arranged based on the situation.
Referring to Figure 10, the display screen 600 of another embodiment of the present invention include display layer group 610 wherein, display layer group 610 may include substrate 611, multiple light emitting pixels 612 on substrate 611 and the encapsulation for encapsulating light emitting pixel 612 Layer 613.Two or more diaphragms 620 are covered with above display layer group 610.Diaphragm 620 can be polaroid 621 and lid Plate 622.There is the optical cement 630 engaged with diaphragm 620 between two neighboring diaphragm 620.In two surface layers of optical cement 630 Equipped with stress buffer opening 640.
Wherein, display layer group 610 has light emitting region, the positive throwing of stress buffer opening 640 and the boundary line of side optical cement Shadow deviates light emitting region.Specifically, the light emitting region of display layer group 610 refers to that display layer group 610 is equipped with the area of light emitting pixel 612 Domain.The light that light emitting pixel 612 is projected in order to avoid the stress buffer opening 640 of optical cement 630 and the boundary line of side optical cement Line causes to reflect, and therefore, stress buffer opening 640 and the orthographic projection in the boundary line of side optical cement deviate light emitting region.Here Orthographic projection refers to projection of the stress buffer opening 640 with the boundary line of side optical cement along 600 stacking direction of display screen.The display screen 600 can not cause to reflect to avoid the thickness of optical cement 630 to light-emitting line, to ensure that the display effect of display screen 600.
Referring to Figure 11, the display screen 700 of another embodiment of the present invention includes the buffer layer 710 and support positioned at the back side Layer 720.Wherein, optical cement 730 is provided between buffer layer 710 and supporting layer 720.That is, being located at 730 two sides of optical cement Diaphragm be respectively buffer layer 710 and supporting layer 720.
The material of buffer layer 710 is in polyurethane elastomer, acrylic elastomer and silicone rubber kinds elastomer It is at least one.Wherein, polyurethane elastomer, acrylic elastomer and silicone rubber kinds elastomer can eliminate traditional foam and draw The fold risen.It is highly preferred that the material of buffer layer 710 is TPU (thermoplastic polyurethane elastomer rubber), can reduce to bent area The draw of optical cement 730, and do not influence buffering effect.
Wherein, optical cement 730 can be using the optical cement in aforementioned any embodiment, herein with no restrictions.For example, can Using the optical cement of the embodiment of Fig. 4 or Fig. 5.At this point, the design of folding shape or the optical cement of curved shape design not only can be with The flowing space is provided for optical cement, prevents optical cement from creep occurs in bent area, it can also be ensured that supportive.
In addition, the stress buffer opening in optical cement avoids concentrating on bending district center in above embodiment, avoid leading Cause display bad.
It should be noted that the stress buffer opening on optical cement surface can be any in flexible display screen of the invention Pattern, in addition, stress buffer opening can be hole or slot.That is, hole can be through-hole, it can also be blind hole.
Work as display screen since the surface layer of optical cement is open equipped with stress buffer using the display screen of technical solution of the present invention When the side being open towards stress buffer is bent, stress buffer opening is capable of forming stress buffer region, to effectively discharge The stress of display screen, avoids showing bad, is conducive to apply.
The present invention also provides the display devices of an embodiment, including above-mentioned display screen.
Using the display device of technical solution of the present invention, since the surface layer of optical cement in display screen is opened equipped with stress buffer Mouthful, when display screen is bent towards the side that stress buffer is open, stress buffer opening is capable of forming stress buffer region, thus The stress for effectively discharging display screen, avoids showing bad, is conducive to apply.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of display screen, which is characterized in that including laminated film piece, and the optical cement between the adjacent diaphragms, On the thickness direction of the optical cement, the optical cement includes sandwich layer and two surface layers in the sandwich layer two sides, described Stress buffer is equipped in either one or two of two surface layers to be open.
2. display screen according to claim 1, which is characterized in that the stress buffer is open from the surface of the optical cement Extend across the surface layer.
3. display screen according to claim 1 or 2, which is characterized in that described to answer in the width direction of the optical cement Power buffering opening extends through the optical cement.
4. display screen according to claim 3, which is characterized in that in the width direction of the optical cement, the stress Buffering opening along overbending direction the optical cement internal stretch;
Preferably, the bending angle of the stress buffer opening is 30 °~60 °;
Preferably, the bending path of the stress buffer opening is in smooth curve.
5. according to claim 1 to flexible display screen described in any one of 3, which is characterized in that in same surface layer, stress is slow Washing mouth open has multiple and is distributed in pairs,
The plane mirror symmetry that same pair of stress buffer is open about the thickness direction along the optical cement.
Preferably, from the surface of the optical cement to the distance between the inside of the optical cement, same pair of stress buffer opening It is gradually reduced.
6. according to claim 1 to flexible display screen described in any one of 3, which is characterized in that the correspondence in two surface layers Stress buffer be open about the sandwich layer mirror symmetry.
7. according to claim 1 to display screen described in any one of 3, which is characterized in that in same surface layer, stress buffer is opened Mouth has multiple, and multiple stress buffers openings are intervally arranged along the length or width direction of the optical cement;
Stress buffer opening in two surface layers is not overlapped in the projection of the core layer surface.
8. display screen according to claim 1, which is characterized in that the display screen includes central area and is located in described The fringe region of heart district domain two sides, the quantity that the stress buffer positioned at the central area is open, which is greater than, is located at the edge The quantity of the stress buffer opening in region.
9. display screen according to claim 1, which is characterized in that the diaphragm positioned at the optical cement two sides is respectively to be located at The buffer layer and supporting layer at the display screen back side;
The material of the buffer layer is selected from one of polyurethane elastomer, acrylic elastomer and silicone elastomer.
10. a kind of display device, which is characterized in that including display screen such as according to any one of claims 1 to 9.
CN201811163041.7A 2018-09-30 2018-09-30 Display screen and display device Active CN109166472B (en)

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CN110610660A (en) * 2019-08-27 2019-12-24 武汉华星光电半导体显示技术有限公司 Glass cover plate, and preparation method and application thereof
CN110610660B (en) * 2019-08-27 2021-11-02 武汉华星光电半导体显示技术有限公司 Glass cover plate, and preparation method and application thereof
CN110992837A (en) * 2020-01-02 2020-04-10 京东方科技集团股份有限公司 Flexible display panel assembly and flexible display device
CN111627323A (en) * 2020-06-28 2020-09-04 京东方科技集团股份有限公司 Film laminating structure, display structure and display device
CN111667769A (en) * 2020-07-07 2020-09-15 京东方科技集团股份有限公司 Bonding structure, manufacturing method thereof and display device
CN111816074A (en) * 2020-07-07 2020-10-23 武汉华星光电半导体显示技术有限公司 Flexible display screen and display device
CN111968504A (en) * 2020-07-31 2020-11-20 合肥维信诺科技有限公司 Display panel capable of being bent in solid state and display device
CN111968504B (en) * 2020-07-31 2022-04-19 合肥维信诺科技有限公司 Display panel capable of being bent in solid state and display device
CN112233563A (en) * 2020-11-09 2021-01-15 湖北长江新型显示产业创新中心有限公司 Display panel and display device

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