CN114913773B - Foldable display panel - Google Patents
Foldable display panel Download PDFInfo
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- CN114913773B CN114913773B CN202210532997.XA CN202210532997A CN114913773B CN 114913773 B CN114913773 B CN 114913773B CN 202210532997 A CN202210532997 A CN 202210532997A CN 114913773 B CN114913773 B CN 114913773B
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- bending
- bending area
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- 238000005452 bending Methods 0.000 claims abstract description 107
- 239000011521 glass Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 25
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000012790 adhesive layer Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- 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
-
- 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
- G09F9/35—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 liquid crystals
-
- 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 application provides a foldable display panel, which is divided into a bending area and a non-bending area, and comprises a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module, and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending area; the display module comprises pixels arranged in an array, and the flexible structure does not influence the light emitting quality of the pixels; the application is provided with the flexible structure at the corresponding bending area of the ultra-thin flexible glass UTG with equal thickness, the flexible structure can not only improve the bending performance of the bending area, but also not affect the light-emitting quality of the foldable display panel, improve the problems of the bending performance and the non-uniform light-emitting quality of the bending area in the prior art, and can also alleviate the deformation glue piling phenomenon generated in the long-time bending process of the optical transparent adhesive material.
Description
Technical Field
The application relates to the technical field of display, in particular to a foldable display panel.
Background
The folding display panel is a future technical development trend, the folding brings new development direction of the display industry, and the active matrix organic light emitting diode display panel has special bending and folding characteristics, so that the active matrix organic light emitting diode display panel is prepared into a plurality of forms of folding display devices, is convenient to carry and store at home, and is widely focused on the market.
From the original fixed curvature SF to the current foldable DF is a development process, wherein the foldable curved cover plates are also increasingly widely used, and the foldable cover plates are developed from transparent polyimide to the current ultra-thin flexible glass by adding a hard coating. With the increasing maturity of the application of foldable panels, the folding performance and the impact resistance of the foldable display panels need to be improved before realizing large-area popularization, and the folding performance and the impact resistance have contradictory points, so that the film layer differentiation in the folding area and the non-folding area is an important direction for improving the folding performance and the impact resistance at present. For example, the bending product adopting ultrathin flexible glass (UTG) at present performs further thinning on UTG in a bending area, so that the bending performance can be improved, and the impact resistance of a non-bending area is not lost.
After the ultrathin flexible glass (UTG) in the bending area is thinned, the ultrathin flexible glass (UTG) in the non-bending area is still in normal thickness, the bending performance can be increased by UTG thinned in the bending area, the original impact resistance can be reserved in the non-bending area, but when the display panel is flattened, the non-bending area and the bending area have different thicknesses due to the ultrathin flexible glass UTG, so that the problems of nonuniform light emitting quality and optical cement stacking are caused, and improvement is needed.
Disclosure of Invention
According to the prior art, the application provides a foldable display panel, which can solve the problems that after the ultrathin flexible glass UTG in a bending area is thinned, the ultrathin flexible glass UTG in a non-bending area is still in normal thickness, the bending performance is increased by UTG thinned in the bending area, the original impact resistance is reserved in the non-bending area, but when the display panel is flattened, the thickness of the ultrathin flexible glass UTG in the bending area is different from that of the non-bending area, so that the light emitting quality is nonuniform and the optical adhesive is piled.
In order to solve the problems, the technical scheme provided by the application is as follows:
the embodiment of the application provides a foldable display panel, which is divided into a bending area and a non-bending area, and comprises a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module, and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending area;
the display module comprises pixels arranged in an array, and the flexible structure does not affect the light emitting quality of the pixels.
According to an alternative embodiment of the application, the flexible structure is arranged to avoid the pixel outgoing light path.
According to an alternative embodiment of the application, the flexible structure comprises an array of elongated grooves arranged parallel and/or perpendicular to the bending axis of the bending zone.
According to an alternative embodiment of the application, the flexible structure comprises an array of dot-shaped circular holes, each of which is located between two adjacent pixels.
According to an alternative embodiment of the present application, the flexible structure includes a hollow structure and a flexible material filled in the hollow structure, and a refractive index of the flexible material is the same as a refractive index of the ultrathin flexible glass.
According to an alternative embodiment of the present application, the hollow structure is a blind hole or a through hole.
According to an alternative embodiment of the present application, a first optical transparent glue layer is disposed between the ultrathin flexible glass and the display module, and a second optical transparent glue layer is disposed between the ultrathin flexible glass and the flexible cover window.
According to an alternative embodiment of the present application, the display module is an OLED display module, a light emitting device is disposed in a pixel opening of the OLED display module, and the flexible structure is disposed avoiding the light emitting device.
According to an alternative embodiment of the present application, the display module is a liquid crystal display module, the liquid crystal display module includes an array substrate, a color film substrate, and a liquid crystal layer located between the array substrate and the color film substrate, the color film substrate includes a color blocking layer and a black matrix located between the color blocking layers, and the flexible structure is aligned with the black matrix.
According to an alternative embodiment of the present application, the material of the back plate is sus stainless steel or copper foil, and the material of the flexible cover window is transparent polyimide.
The application has the beneficial effects that: the embodiment of the application provides a foldable display panel, which is divided into a bending area and a non-bending area, and comprises a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending area; the display module comprises pixels arranged in an array, and the flexible structure does not influence the light emitting quality of the pixels; the application is provided with the flexible structure at the corresponding bending area of the ultra-thin flexible glass UTG with equal thickness, the flexible structure can not only improve the bending performance of the bending area, but also not affect the light-emitting quality of the foldable display panel, improve the problems of the bending performance and the non-uniform light-emitting quality of the bending area in the prior art, and can also alleviate the deformation glue piling phenomenon generated in the long-time bending process of the optical transparent adhesive material.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 to 3 are schematic film structures of a foldable display panel in the prior art.
Fig. 4 is a schematic diagram of a film structure of a foldable display panel according to an embodiment of the application.
Fig. 5a to 5h are schematic views showing a flexible structure of a foldable display panel according to an embodiment of the present application.
Fig. 6 is a schematic diagram of another film structure of a foldable display panel according to an embodiment of the application.
Fig. 7 is a schematic diagram of a film structure of a foldable display panel according to an embodiment of the application.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. The directional terms mentioned in the present application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the application and is not limiting of the application. In the drawings, like elements are denoted by the same reference numerals, and broken lines in the drawings indicate that they are not present in the structure, and only the shape and position of the structure are described.
As shown in fig. 1, a foldable display panel 10 in the prior art is divided into a bending area 11 and a non-bending area 12, the foldable display panel 10 includes a back plate 13, a display module 14 disposed on the back plate, a first optical transparent adhesive layer 15 disposed on the display module 14, an ultrathin flexible glass 16 disposed on the first optical transparent adhesive layer 15, a second optical transparent adhesive layer 17 disposed on the ultrathin flexible glass 16, and a cover window 18 disposed on the second optical transparent adhesive layer 17, wherein the ultrathin flexible glass 16 is a monolithic and equal thick layer, and the impact resistance in the bending area 11 is the same as that of the non-bending area 12, resulting in poor bending performance of the foldable display panel 10.
Fig. 2 is a modification of the basis of fig. 1, and as shown in fig. 2, a foldable display panel 10 of the prior art is divided into a bending region 11 and a non-bending region 12, the foldable display panel 10 includes a back plate 13, a display module 14 disposed on the back plate, a first optically transparent adhesive layer 15 disposed on the display module 14, an ultra-thin flexible glass 161 disposed on the first optically transparent adhesive layer 15, a hard layer 162 disposed on the ultra-thin flexible glass 161, a second optically transparent adhesive layer 17 disposed on the hard layer 162, and a cover window 18 disposed on the second optically transparent adhesive layer 17, and the thickness of the ultra-thin flexible glass 161 in the bending region 11 is smaller than the thickness of the ultra-thin flexible glass 161 in the non-bending region 12. As shown in fig. 3, the light intensity S2 of the bending region 11 is inconsistent with the light intensity S1 of the non-bending region 12, and the region 19 has a problem of optical glue stacking, i.e. the optical glue stacking occurs at the thinned boundary of the ultrathin flexible glass 161 in the bending region 11.
The application aims at the problems that after the ultrathin flexible glass UTG of the bending area of the foldable display panel in the prior art is thinned, the ultrathin flexible glass UTG of the non-bending area is still in normal thickness, the bending performance is increased by UTG of the thinned bending area, the original shock resistance is reserved in the non-bending area, but when the display panel is flattened, the thickness of the ultrathin flexible glass UTG of the bending area is different, so that the light emitting quality is not uniform and the optical adhesive is piled up in the non-bending area.
The embodiment of the application provides a foldable display panel, which is divided into a bending area and a non-bending area, and comprises a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending area; the display module comprises pixels arranged in an array, and the flexible structure does not influence the light emitting quality of the pixels; the application is provided with the flexible structure at the corresponding bending area of the ultra-thin flexible glass UTG with equal thickness, the flexible structure can not only improve the bending performance of the bending area, but also not affect the light-emitting quality of the foldable display panel, improve the problems of the bending performance and the non-uniform light-emitting quality of the bending area in the prior art, and can also alleviate the deformation glue piling phenomenon generated in the long-time bending process of the optical transparent adhesive material.
Specifically, as shown in fig. 4, an embodiment of the present application provides a schematic film diagram of a foldable display panel 20, wherein the foldable display panel 20 is divided into a bending area 21 and a non-bending area, and in this embodiment, the non-bending area 22 and the non-bending area 23 are respectively disposed at two sides of the bending area 21, and the foldable display panel 20 includes a back plate 24, a display module 25 disposed on the back plate 24, an ultrathin flexible glass 27 disposed on a first optical transparent adhesive layer 26 disposed on the display module 25, a second optical transparent adhesive layer 29 disposed on the ultrathin flexible glass 27, and a flexible cover window 31 disposed on the second optical transparent adhesive layer 29; the ultrathin flexible glass 27 is provided with a flexible structure 28 corresponding to the bending region 21, the flexible structure 28 is arranged avoiding the pixel light-emitting path, the flexible structure 28 is a blind hole or a through hole, the ultrathin flexible glass 27 in the embodiment comprises a first portion 271 and a second portion 272, and the flexible structure 28 comprises a first blind hole 281, a second blind hole 282 and a through hole 283. The material of the back plate 24 is sus stainless steel or copper foil, and the material of the flexible cover window 31 is transparent polyimide.
Fig. 5a to 5h are schematic views of the flexible structure 28 according to the present application. Fig. 5a is a schematic cross-sectional view of the ultra-thin flexible glass 27, and fig. 5b is a schematic top view of the ultra-thin flexible glass 27. As shown in fig. 5a and fig. 5b, the flexible structure 28 includes an array of elongated grooves 284, the elongated grooves 284 are disposed parallel to the bending axis of the bending region, the elongated grooves 284 are between two adjacent rows of pixels, and in the specific preparation process, laser modification is performed on the ultrathin flexible glass 27, and the acid solution washes out the patterned elongated grooves 284, and at the same time, uses ion exchange to increase the surface strength of the elongated grooves 284. Fig. 5c is another schematic cross-sectional view of the ultra-thin flexible glass 27, and fig. 5d is another schematic top view of the ultra-thin flexible glass 27. As shown in fig. 5c and 5d, the flexible structure 28 includes an array of elongated grooves 285, the elongated grooves 285 are perpendicular to the bending axis of the bending region, and the elongated grooves 285 are between two adjacent rows of pixels, and the specific manufacturing process is similar to that in fig. 5 b. Fig. 5e is a schematic cross-sectional view of the ultra-thin flexible glass 27, and fig. 5f is a schematic top view of the ultra-thin flexible glass 27. As shown in fig. 5e and 5f, the flexible structure 28 includes an array of elongated grooves 284 and elongated grooves 285, the elongated grooves 285 are disposed perpendicular to the bending axis of the bending region, the elongated grooves 284 and the elongated grooves 285 intersect each other, the elongated grooves 284 are between two adjacent rows of pixels, and the elongated grooves 285 are between two adjacent rows of pixels, and the specific preparation process is similar to that in fig. 5 b.
Fig. 5g is a schematic cross-sectional view of the ultra-thin flexible glass 27, and fig. 5h is a schematic top view of the ultra-thin flexible glass 27. As shown in fig. 5e and 5f, the flexible structure 28 includes an array of dot-shaped circular holes 286, each of the dot-shaped circular holes 286 being located between two adjacent pixels.
As shown in fig. 4, the display module 25 in this embodiment is an OLED display module, a light emitting device is disposed in a pixel opening of the OLED display module, and the flexible structure 28 is disposed avoiding the light emitting device, for example, the flexible structure 28 includes a first blind hole 281, a second blind hole 282, and a through hole 283. The red light emitting device 251, the green light emitting device 252, the blue light emitting device 253 and the red light emitting device 254 of the OLED display module, the second blind via 282 is located between the blue light emitting device 253 and the red light emitting device 254, the first blind via 281 is located between the red light emitting device 251 and the green light emitting device 252, and the through via 283 is located between the green light emitting device 252 and the blue light emitting device 253. Since the light intensity S2 of the bending region 21 and the light intensity S1 of the non-bending region 22 pass through the ultrathin flexible glass 27 with the same thickness, the light intensity S2 of the bending region 21 is the same as the light intensity S1 of the non-bending region 22, improving the bending performance and solving the optical non-uniformity problem.
As shown in fig. 6, an embodiment of the present application provides another film structure of a foldable display panel. The display module is a liquid crystal display module, the liquid crystal display module comprises an array substrate 251, a liquid crystal layer 252 and a color film substrate, the color film substrate comprises a color resistance layer and a black matrix 255 positioned between the color resistance layers, the black matrix 255 is positioned between the color resistance layer 253 and the color resistance layer 254, and the flexible structure 28 and the black matrix 255 are arranged in an alignment manner. The ultra-thin flexible glass includes a first portion 271 and a second portion 272, a flexible structure 28 is positioned between the first portion 271 and the second portion 272, and the flexible structure 28 is a through hole. The flexible structure 28 is located between adjacent pixels, crosstalk of emergent light rays S5, S6, S7 and S8 is small, the problem of optical non-uniformity of a folding area and a non-folding area can be effectively solved within a certain range by controlling the size of an opening, meanwhile, bending performance is improved, bending performance of ultrathin flexible glass of the bending area can be improved by designing a pixel-level patterning through hole, meanwhile, the thickness of the non-bending area is thicker, and impact resistance can be improved.
As shown in fig. 7, an embodiment of the present application provides a further schematic film diagram of a foldable display panel 20, wherein the foldable display panel 20 is divided into a bending area 21 and a non-bending area, and in this embodiment, the non-bending area 22 and the non-bending area 23 are respectively disposed at two sides of the bending area 21, and the foldable display panel 20 includes a back plate 24, a display module 25 disposed on the back plate 24, an ultrathin flexible glass 27 disposed on a first optical transparent adhesive layer 26 disposed on the display module 25, a second optical transparent adhesive layer 29 disposed on the ultrathin flexible glass 27, and a flexible covering window 31 disposed on the second optical transparent adhesive layer 29; ultrathin flexible glass 27 corresponds bending zone 21 and is provided with flexible structure 28, flexible structure 28 avoids the setting of pixel light-emitting path, flexible structure 28 include hollow out construction and fill in flexible material in the hollow out construction, flexible material's refractive index with ultrathin flexible glass's refractive index is the same, hollow out construction is the through-hole, also can be the blind hole, flexible material in the hollow out construction is formed with flexible piece, display module assembly 25 includes red light emitting device 251, green light emitting device 252 and blue light emitting device 253, flexible structure 28 covers partial light emitting device, flexible structure 28 includes flexible piece 287 and flexible piece 288, flexible piece 288 covers blue light emitting device 253, flexible piece 288 covers red light emitting device 251 and green light emitting device 252. The refractive index of the flexible blocks 287 and 288 is the same as that of the ultrathin flexible glass 27, and the phenomenon of nonuniform light intensity can be alleviated.
In the above, the embodiment of the application provides a foldable display panel, which is divided into a bending area and a non-bending area, and comprises a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module, and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending region, and the flexible structure is arranged avoiding the pixel opening of the display module, or the refractive index of the flexible structure is the same as that of the ultrathin flexible glass; the application preferably carries out laser etching on the hollow structure (flexible structure) with the pixel level size at the pixel gap of the corresponding display module of the ultra-thin flexible glass UTG with equal thickness, improves the bending performance and solves the problem of optical non-uniformity, and the hollow structure increases the contact area of the optical transparent adhesive material and slows down the deformation glue piling phenomenon generated in the long-time bending process of the optical transparent adhesive material.
In summary, although the present application has been described in terms of the preferred embodiments, the above-mentioned embodiments are not intended to limit the application, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the application, so that the scope of the application is defined by the appended claims.
Claims (9)
1. The foldable display panel is divided into a bending area and a non-bending area and is characterized by comprising a back plate, a display module arranged on the back plate, ultrathin flexible glass arranged on the display module and a flexible cover window arranged on the ultrathin flexible glass; the ultrathin flexible glass is provided with a flexible structure corresponding to the bending area;
the display module comprises pixels arranged in an array, and the flexible structure does not influence the light emitting quality of the pixels;
wherein the flexible structure is arranged avoiding the pixel light-out path.
2. A foldable display panel according to claim 1, wherein the flexible structure comprises an array of elongated recesses arranged parallel and/or perpendicular to the bending axis of the bending zone.
3. A foldable display panel as claimed in claim 1, characterized in that the flexible structure comprises an array of dot-shaped circular holes, each of the dot-shaped circular holes being located between two adjacent pixels.
4. The foldable display panel of claim 1, wherein the flexible structure comprises a hollowed-out structure and a flexible material filled in the hollowed-out structure, the refractive index of the flexible material is the same as the refractive index of the ultra-thin flexible glass.
5. The foldable display panel of claim 4, wherein the hollowed-out structure is a blind hole or a through hole.
6. The foldable display panel of claim 1, wherein a first optically transparent glue layer is disposed between the ultra-thin flexible glass and the display module, and a second optically transparent glue layer is disposed between the ultra-thin flexible glass and the flexible cover window.
7. The foldable display panel of claim 1, wherein the display module is an OLED display module, a light emitting device is disposed in a pixel opening of the OLED display module, and the flexible structure is disposed away from the light emitting device.
8. The foldable display panel of claim 1, wherein the display module is a liquid crystal display module, the liquid crystal display module includes an array substrate, a color film substrate, and a liquid crystal layer between the array substrate and the color film substrate, the color film substrate includes a color resist layer and a black matrix between the color resist layers, and the flexible structure is aligned with the black matrix.
9. The foldable display panel of claim 1, wherein the material of the back sheet is sus stainless steel or copper foil, and the material of the flexible cover window is transparent polyimide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532997.XA CN114913773B (en) | 2022-05-11 | 2022-05-11 | Foldable display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532997.XA CN114913773B (en) | 2022-05-11 | 2022-05-11 | Foldable display panel |
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| CN114913773A CN114913773A (en) | 2022-08-16 |
| CN114913773B true CN114913773B (en) | 2023-11-28 |
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