CN114387886B - Folding display device - Google Patents
Folding display device Download PDFInfo
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- CN114387886B CN114387886B CN202210100135.XA CN202210100135A CN114387886B CN 114387886 B CN114387886 B CN 114387886B CN 202210100135 A CN202210100135 A CN 202210100135A CN 114387886 B CN114387886 B CN 114387886B
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- display module
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- 239000010410 layer Substances 0.000 claims description 118
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 15
- 238000005452 bending Methods 0.000 description 11
- 230000003667 anti-reflective effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 description 1
- 229910001632 barium fluoride Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention discloses a folding display device; the folding display device comprises a shell, a display module and a flexible cover plate, wherein the shell comprises a bottom frame and a middle frame positioned on the bottom frame, the bottom frame and the middle frame form a cavity, the display module is positioned in the cavity, the flexible cover plate is positioned on the shell, the flexible cover plate is contacted with the middle frame and positioned outside the cavity, and the display module is separated from the flexible cover plate; according to the invention, the flexible cover plate is directly attached to the shell, so that a front frame structure in the prior art is replaced, the flexible cover plate is separated from the display module, the film layer dislocation is reduced, the edge section difference touch feeling of the folding display device is weakened, the mechanical performance of the folding display device is improved, and the service life of the folding display device is prolonged.
Description
Technical Field
The invention relates to the field of display, in particular to a folding display device.
Background
In recent years, folding display devices are more and more popular with consumers, dislocation is easy to occur when a flexible screen film material is bent, a space is reserved for the film material, in order to shield the reserved space, a front frame is used for shielding the edge of the folding display device, so that the folding display device is more attractive, meanwhile, damage to the film layer at the end part of the folding display device is reduced, and the use experience of the edge of the folding display device is seriously influenced by the existence of the front frame.
Therefore, a folding display device is needed to solve the above technical problems.
Disclosure of Invention
The invention provides a folding display device, which can relieve the technical problem that a front frame influences the use experience of the edge of the folding display device in the prior art.
The present invention provides a folding display device, comprising:
the shell comprises a bottom frame and a middle frame positioned on the bottom frame, and the bottom frame and the middle frame form a cavity; the display module is positioned in the cavity; and
the flexible cover plate is positioned on the shell, is contacted with the middle frame and is positioned outside the cavity;
wherein, the display module assembly with flexible apron separation sets up.
Preferably, the housing includes a first frame, a second frame, and a hinge connecting the first frame and the second frame; the flexible cover plate comprises a first part corresponding to the first frame body, a second part corresponding to the second frame body and a third part corresponding to the hinge; wherein the width of the third portion is smaller than the width of the first portion in a direction parallel to the bottom edge of the folding display device, and the third portion is smaller than the width of the second portion.
Preferably, the folding display device further includes a buffer layer located at the periphery of the third portion, and a glue layer located at the periphery of the first portion and the second portion.
Preferably, the buffer layer is located on a surface of the third portion, which is close to one side of the display module; the glue layer is located on the surface of the first portion, which is close to one side of the display module, and the surface of the second portion, which is close to one side of the display module.
Preferably, the middle frame comprises a first unit and a second unit which are connected, the first unit is positioned at one side of the second unit far away from the folding display device, and the height of the first unit is larger than that of the second unit; the flexible cover plate is positioned on the second unit, and the height of the second unit is larger than the thickness of the display module in the direction from the shell to the flexible cover plate.
Preferably, the buffer layer is further located on a surface of the third portion near the side of the second unit; the adhesive layer is also positioned on the surface of the first part close to one side of the second unit and the surface of the second part close to one side of the second unit.
Preferably, a gap is disposed between the display module and the first unit.
Preferably, the elastic modulus of the third portion is smaller than the elastic modulus of the first portion, and the elastic modulus of the third portion is smaller than the elastic modulus of the second portion.
Preferably, the folding display device further comprises a first anti-reflection layer positioned on one side of the flexible cover plate close to the display module, and a second anti-reflection layer positioned on one side of the display module close to the flexible cover plate; wherein the first anti-reflection layer is disposed separately from the second anti-reflection layer.
Preferably, the folding display device further includes a transparent optical layer between the first anti-reflection layer and the second anti-reflection layer.
The invention has the beneficial effects that: according to the invention, the flexible cover plate is directly attached to the shell, so that a front frame structure in the prior art is replaced, the flexible cover plate is separated from the display module, the film layer dislocation is reduced, the edge section difference touch feeling of the folding display device is weakened, the mechanical performance of the folding display device is improved, and the service life of the folding display device is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view schematically showing a folding display device provided by an embodiment of the present invention;
fig. 2 is a schematic top view of a first structure of a foldable display device according to an embodiment of the present invention;
fig. 3 is a schematic top view of a second structure of a foldable display device according to an embodiment of the present invention;
FIG. 4 is a first schematic view of the structure of FIG. 3 taken along section C1C 2;
FIG. 5 is a second structural schematic view taken along section C1C2 of FIG. 3;
FIG. 6 is a third schematic view of the structure of FIG. 3 taken along section C1C 2;
FIG. 7 is a fourth schematic view of the structure of FIG. 3 taken along section C1C 2;
FIG. 8 is a fifth structural schematic diagram of FIG. 3 taken along section C1C 2;
FIG. 9 is a sixth schematic view of the structure of FIG. 3 taken along section C1C 2;
FIG. 10 is a seventh structural schematic diagram taken along section C1C2 of FIG. 3;
fig. 11 is a schematic structural view of a third structure of the foldable display device according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
In recent years, folding display devices are more and more popular with consumers, dislocation is easy to occur when a flexible screen film material is bent, a space is reserved for the film material, in order to shield the reserved space, a front frame is used for shielding the edge of the folding display device, so that the folding display device is more attractive, meanwhile, damage to the film layer at the end part of the folding display device is reduced, and the use experience of the edge of the folding display device is seriously influenced by the existence of the front frame.
Referring to fig. 1 to 10, an embodiment of the present invention provides a folding display device 100, including:
a housing 200 comprising a bottom frame 210 and a middle frame 220 positioned on the bottom frame 210, the bottom frame 210 and the middle frame 220 forming a cavity 230;
a display module 300 located in the cavity 230; and
a flexible cover 400 disposed on the housing 200, wherein the flexible cover 400 is in contact with the middle frame 220 and is disposed outside the cavity 230;
the display module 300 is separated from the flexible cover 400.
According to the invention, the flexible cover plate 400 is directly attached to the shell 200, so that a front frame structure in the prior art is replaced, the flexible cover plate 400 is separated from the display module 300, the film layer dislocation is reduced, the edge section difference touch feeling of the folding display device 100 is weakened, the mechanical performance of the folding display device 100 is improved, and the service life of the folding display device 100 is prolonged.
The technical scheme of the present invention will now be described with reference to specific embodiments.
In this embodiment, referring to fig. 1 to 4, the foldable display device 100 includes a housing 200, a display module 300, and a flexible cover 400; the housing 200 includes a bottom frame 210 and a middle frame 220 positioned on the bottom frame 210, the bottom frame 210 and the middle frame 220 forming a cavity 230; the display module 300 is located in the cavity 230; the flexible cover 400 is located on the housing 200, and the flexible cover 400 is in contact with the middle frame 220 and is located outside the cavity 230; the display module 300 is separated from the flexible cover 400.
Referring to fig. 4, taking the folding manner of the folding display device 100 as an example, the display module 300 is separated from the flexible cover plate 400, when the folding display device 100 is folded, the dislocation between the film layers can be reduced, and the flexible cover plate 400 is attached to the middle frame 220 of the housing 200, so that the display module 300 and the flexible cover plate 400 are conveniently separated, and the flexible cover plate 400 is conveniently fixed, thereby weakening the edge section difference touch feeling of the folding display device 100, increasing the mechanical performance of the folding display device 100, and prolonging the service life of the folding display device 100.
In some embodiments, referring to fig. 3, the foldable display device 100 includes a flat display area a and a folded display area B, wherein the flat display area a may be located at two sides of the folded display area B.
In some embodiments, referring to fig. 1 and 2, the housing 200 includes a first frame 201, a second frame 202, and a hinge 203 connecting the first frame 201 and the second frame 202; the flexible cover 400 includes a first portion 410 corresponding to the first frame 201, a second portion 420 corresponding to the second frame 202, and a third portion 430 corresponding to the hinge 203; wherein the width of the third portion 430 is smaller than the width of the first portion 410 in a direction parallel to the bottom side of the folding display device 100, and the third portion 430 is smaller than the width of the second portion 420.
The hinge 203 is also connected to the display module 300 and the flexible cover 400 to bend the folded display device 100, the third portion 430 corresponds to the bending display area B, and the part and the second portion 420 correspond to the flat display area a. The width of the third portion 430 is smaller than the width of the first portion 410 in a direction parallel to the bottom edge of the folded display device 100, the width of the third portion 430 is smaller than the width of the second portion 420, and the hinge 203 may be better attached to the flexible cover 400 to bend the folded display device 100.
In some embodiments, the first portion 410, the second portion 420, and the third portion 430 are integrally formed, and may be integrally formed during the forming process to improve the quality of the flexible cover 400.
In some embodiments, the light emitting direction of the foldable display device 100 is a direction from the display module 300 to a side away from the bottom frame 210.
In some embodiments, the material of the flexible cover plate 400 may be Ultra Thin Glass (UTG). The ultrathin glass is foldable glass, the flat state can be kept all the time after bending, and the reflected light received by human eyes from the folding display device 100 is mainly reflected from the upper surface of the uppermost layer of film material, so that the film material close to the human eyes is flat, and the crease impression of the folding display device 100 can be eliminated to a great extent.
In some embodiments, referring to fig. 2, the foldable display device 100 further includes a buffer layer 510 disposed on the periphery of the third portion 430, and an adhesive layer 520 disposed on the periphery of the first portion 410 and the second portion 420. When the folded display device 100 is folded, the buffer layer 510 may reduce the impact between the flexible cover 400 and surrounding film layers or components, and prolong the service life of the surrounding film layers or components. The glue layer 520 may enhance the adhesion between the first portion 410 and the second portion 420 and the film layer or component to be bonded.
In some embodiments, referring to fig. 5, the buffer layer 510 is disposed on a surface of the third portion 430 near a side of the display module 300; the glue layer 520 is located on a surface of the first portion 410 near the display module 300, and on a surface of the second portion 420 near the display module 300. For the buffer layer 510, the cross-sectional line of C1C2 may be moved into the bending display area B, and the glue layer 520 in fig. 5 may be replaced by the buffer layer 510, which is easy to understand and not repeated.
The buffer layer 510 reinforces the buffer effect between the third portion 430 and the display module 300, and when the folded display device 100 is folded, the buffer layer 510 can reduce the impact between the flexible cover 400 and the display module 300, and particularly has a better protection effect on the edge of the display module 300.
In some embodiments, referring to fig. 6, the middle frame 220 includes a first unit 221 and a second unit 222 that are connected, the first unit 221 is located on a side of the second unit 222 away from the foldable display device 100, and a height of the first unit 221 is greater than a height of the second unit 222; wherein the flexible cover 400 is located on the second unit 222, and the height of the second unit 222 is greater than the thickness of the display module 300 in the direction from the housing 200 to the flexible cover 400.
In the direction from the housing 200 to the flexible cover 400, the height of the second unit 222 is greater than the thickness of the display module 300, so that the display module 300 and the flexible cover 400 are separated, and the film dislocation is reduced.
The first unit 221 is connected with the second unit to form a step-shaped middle frame 220, the flexible cover plate 400 is arranged on the second unit 222, namely on a slightly shorter step, and the position limitation that the second unit 222 is used as a bearing and the first unit 221 is used as an edge prevents the flexible cover plate 400 from being excessively moved and misplaced.
In some embodiments, referring to fig. 7, the buffer layer 510 is further disposed on a surface of the third portion 430 near a side of the second unit 222; the glue layer 520 is located on a surface of the first portion 410 near the second unit 222, and on a surface of the second portion 420 near the second unit 222. For the buffer layer 510, the cross-sectional line of C1C2 may be moved into the bending display area B, and the glue layer 520 in fig. 7 may be replaced by the buffer layer 510, which is easy to understand and not repeated.
The buffer layer 510 reinforces the buffer effect between the third portion 430 and the second unit 222, and when the foldable display device 100 is folded, the buffer layer 510 may reduce the impact between the flexible cover 400 and the second unit 222, and reduce the impact between the flexible cover 400 and the housing 200. The glue layer 520 may increase the adhesion between the flexible cover 400 and the direction approaching the second unit 222.
In some embodiments, referring to fig. 8, a gap 640 is provided between the display module 300 and the first unit 221. When the folding display device 100 is folded, the compression between the display module 300 and the case 200 may be reduced.
In some embodiments, the third portion 430 has a modulus of elasticity that is less than the modulus of elasticity of the first portion 410, and the third portion 430 has a modulus of elasticity that is less than the modulus of elasticity of the second portion 420.
The third portion 430 is used for bending, by changing the proportion of the elastic component in the flexible cover plate 400, the elastic modulus of different areas of the flexible cover plate 400 can be changed, the specific component content is not the key point of the technical feature, and the elastic modulus of the third portion 430 can be set to be slightly smaller by customizing with an incoming material manufacturer, so that the bending of the third portion 430 is facilitated, and the service life of the flexible cover plate 400 is prolonged.
In some embodiments, referring to fig. 11, the third portion 430 further includes a first sub-portion 431 near the bending center, a second sub-portion 432 far from the bending center, and a third sub-portion 433 connecting the first sub-portion 431 and the second sub-portion 432.
When the foldable display device 100 is in the fully folded state, the first portion 410 and the second portion 420 are in a parallel or nearly parallel state; a certain inclination angle is formed between one third sub-portion 433 and the corresponding other third sub-portion 433, so as to form a wedge-shaped accommodating space, and the bending display area B can make the space accommodate the redundant display module 300; the first sub-portion 431 is close to the bending center, bends to form a water drop-shaped structure, and after flattening, the film layer in the bending display area B is restored to be flat, and the film layer mechanism always maintains a symmetrical state in the bending process, so that damage to the film layer mechanism is reduced.
In some embodiments, referring to fig. 11, the first sub-portion 431 and the second sub-portion 432 have a bent shape, the third sub-portion 433 has a planar shape, and the elastic moduli of the first sub-portion 431 and the second sub-portion 432 are smaller than the elastic modulus of the third sub-portion 433.
The first sub-portion 431 and the second sub-portion 432 are used for bending, and the elastic modulus of the first sub-portion 431 and the second sub-portion 432 is set to be slightly smaller, which is beneficial to bending of the first sub-portion 431 and the second sub-portion 432, and prolongs the service life of the flexible cover plate 400.
In some embodiments, due to the separation between the flexible cover 400 and the display module 300, air exists, which may result in insufficient blackness of the screen when no screen is displayed.
Referring to fig. 9, the foldable display device 100 further includes a first anti-reflection layer 610 disposed on a side of the flexible cover 400 close to the display module 300, and a second anti-reflection layer 620 disposed on a side of the display module 300 close to the flexible cover 400; wherein the first anti-reflection layer 610 is disposed separately from the second anti-reflection layer 620.
The first anti-reflection film layer and the second anti-reflection film layer can reduce the overall reflectivity of the folded display device 100 and improve the display effect.
In some embodiments, the first anti-reflective layer 610 is similar in structure to the second anti-reflective layer 620, and the first anti-reflective layer 610 includes a first adhesive layer, a first strengthening layer on the first adhesive layer, and a first optical layer on the first strengthening layer, as exemplified by the first anti-reflective layer 610. The first adhesive layer is located between the first reinforcing layer and the flexible cover plate 400.
The first adhesive layer is used to bond the first anti-reflection layer 610 and the flexible cover plate 400, and the material of the first adhesive layer may be transparent polyethylene terephthalate. The first reinforcing layer is used for reinforcing hardness, and the material of the first reinforcing layer can be acrylic resin. The first optical layer is used for reducing reflectivity, and the refractive index of the first optical layer is 1.35 to 1.45. The second anti-reflection layer 620 is similar to the first anti-reflection layer 610 in structure, and will not be described again.
In some embodiments, the material of the first optical layer may be a crystalline material such as magnesium fluoride, silicon oxide, titanium oxide, tantalum pentoxide, hafnium oxide, zirconium oxide, niobium oxide, barium fluoride, aluminum fluoride, cryolite, or the like. The second anti-reflection layer 620 is similar to the first anti-reflection layer 610, and will not be described here.
In some embodiments, referring to fig. 10, the folded display device 100 further includes a transparent optical layer 630 between the first anti-reflective layer 610 and the second anti-reflective layer 620.
The material of the transparent optical layer 630 may be transparent optical cement, so as to compensate for the step difference between the cover plate and the display module 300.
In some embodiments, a gap is provided between the first anti-reflection layer 610, the second anti-reflection layer 620, and the transparent optical layer 630, and the case 200, respectively. When the folding display device 100 is folded, the pressing of the film layer against the case 200 may be reduced.
In some embodiments, the transparent optical layer 630 may include a plurality of transparent posts, and need not be an entire layer arrangement.
In some embodiments, referring to fig. 1, the foldable display device 100 further includes a protective cover 204 located on a side of the hinge 203 away from the display module 300. The protective cover 204 is used to include the hinge 203 and prevent dust.
In some embodiments, referring to fig. 1, the foldable display device 100 further includes a rear case 205 located on a side of the bottom frame 210 away from the display module 300.
In some embodiments, the foldable display device 100 further includes a support plate between the display module 300 and the housing 200. The support plate is located in the folding area, and is used to assist the display module 300 to fold when the folding display device 100 is folded.
In some embodiments, the display module 300 includes an array substrate and a light emitting device layer on the array substrate.
In some embodiments, the display module 300 further includes a plurality of optical devices, which may be any one or a combination of a camera, a distance sensor, a fingerprint recognition device, and an infrared sensor.
In some embodiments, the array substrate includes an active layer on the substrate, a first insulating layer on the active layer, a gate layer on the first insulating layer, a second insulating layer on the gate layer, a source drain layer on the second insulating layer, and a third insulating layer on the source drain layer.
In some embodiments, the light emitting device layer includes an anode layer on the third insulating layer, a light emitting material layer on the anode layer, and a cathode layer on the light emitting material layer, and the display module 300 further includes a pixel defining layer disposed on the same layer as the light emitting material layer, and a polarizing layer on the light emitting device layer.
In some embodiments, the Light Emitting device layer may include an OLED (Organic Light-Emitting Diode) material, and may also include a Micro LED or a Mini LED, which is not particularly limited herein.
According to the invention, the flexible cover plate is directly attached to the shell, so that a front frame structure in the prior art is replaced, the flexible cover plate is separated from the display module, the film layer dislocation is reduced, the edge section difference touch feeling of the folding display device is weakened, the mechanical performance of the folding display device is improved, and the service life of the folding display device is prolonged.
The embodiment of the invention discloses a folding display device; the folding display device comprises a shell, a display module and a flexible cover plate, wherein the shell comprises a bottom frame and a middle frame positioned on the bottom frame, the bottom frame and the middle frame form a cavity, the display module is positioned in the cavity, the flexible cover plate is positioned on the shell, the flexible cover plate is contacted with the middle frame and positioned outside the cavity, and the display module is separated from the flexible cover plate; according to the invention, the flexible cover plate is directly attached to the shell, so that a front frame structure in the prior art is replaced, the flexible cover plate is separated from the display module, the film layer dislocation is reduced, the edge section difference touch feeling of the folding display device is weakened, the mechanical performance of the folding display device is improved, and the service life of the folding display device is prolonged.
The foregoing has described in detail a foldable display device provided by embodiments of the present invention, and specific examples have been set forth herein to illustrate the principles and embodiments of the present invention, the above examples being provided only to assist in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (8)
1. A folding display device, comprising:
the shell comprises a bottom frame and a middle frame positioned on the bottom frame, and the bottom frame and the middle frame form a cavity;
the display module is positioned in the cavity; and
the flexible cover plate is positioned on the shell, is contacted with the middle frame and is positioned outside the cavity;
the middle frame comprises a first unit and a second unit which are connected, the flexible cover plate is located on the second unit, the height of the second unit is larger than the thickness of the display module in the direction from the shell to the flexible cover plate, the display module and the flexible cover plate are separated, the folding display device further comprises a first anti-reflection layer located on one side of the flexible cover plate, which is close to the display module, and a second anti-reflection layer located on one side of the display module, which is close to the flexible cover plate, the first anti-reflection layer and the second anti-reflection layer are separated, and a transparent optical layer is further arranged between the first anti-reflection layer and the second anti-reflection layer, wherein gaps are formed between the first anti-reflection layer, the second anti-reflection layer and the transparent optical layer and the shell respectively.
2. The foldable display device of claim 1, wherein the housing comprises a first frame, a second frame, and a hinge connecting the first frame and the second frame;
the flexible cover plate comprises a first part corresponding to the first frame body, a second part corresponding to the second frame body and a third part corresponding to the hinge;
wherein the width of the third portion is smaller than the width of the first portion in a direction parallel to the bottom edge of the folding display device, and the third portion is smaller than the width of the second portion.
3. The foldable display device of claim 2, further comprising a buffer layer located at a periphery of the third portion, and a glue layer located at a periphery of the first portion and the second portion.
4. A foldable display device according to claim 3, wherein the buffer layer is located on a surface of the third portion adjacent to a side of the display module;
the glue layer is located on the surface of the first portion, which is close to one side of the display module, and the surface of the second portion, which is close to one side of the display module.
5. The foldable display device of claim 4, wherein the first unit is located on a side of the second unit remote from the foldable display device, and wherein a height of the first unit is greater than a height of the second unit.
6. The folding display device according to claim 5, wherein the buffer layer is further provided on a surface of the third portion on a side close to the second unit;
the adhesive layer is also positioned on the surface of the first part close to one side of the second unit and the surface of the second part close to one side of the second unit.
7. The foldable display device of claim 5, wherein a gap is provided between the display module and the first unit, respectively.
8. The folding display device according to claim 2, wherein an elastic modulus of the third portion is smaller than an elastic modulus of the first portion, and an elastic modulus of the third portion is smaller than an elastic modulus of the second portion.
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