CN109523922B - Flexible module, display panel and display device - Google Patents
Flexible module, display panel and display device Download PDFInfo
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- CN109523922B CN109523922B CN201811538727.XA CN201811538727A CN109523922B CN 109523922 B CN109523922 B CN 109523922B CN 201811538727 A CN201811538727 A CN 201811538727A CN 109523922 B CN109523922 B CN 109523922B
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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
Abstract
The invention discloses a flexible module, a display panel and a display device, wherein the flexible module comprises a first bonding layer and a second bonding layer, two surfaces, which are jointed with each other, of the first bonding layer and the second bonding layer are provided with conjugants which are mutually jointed, and each conjugant comprises a plurality of groove structures formed on the first bonding layer at intervals and a plurality of convex structures formed on the second bonding layer at intervals; the groove structures and the projection structures are fixedly engaged in the respective groove structures. When using this tie coat structure to make two adjacent layer membrane material laminate each other in the module, through the structure of protruding structure interengagement on groove structure and the second tie coat on the first tie coat to and the viscidity of first tie coat and second tie coat, can be closely fixed with first tie coat and second tie coat, and then can effectively strengthen the adhesion between these two layer membrane material, when having avoided flexible module to buckle, the condition that first tie coat and second tie coat peeled off.
Description
Technical Field
The invention relates to the technical field of flexible display, in particular to a flexible module, a display panel and a display device.
Background
At present, in the flexible screen body, the flexible module is a multi-film layer structure, and flexible products have the problems that the bending capacities of all films are inconsistent and the films are easy to separate when being bent. For example, as shown in fig. 1, when the flexible display panel is bent, the layers are separated due to the material of the flexible substrate in the hard coating film 6 and the difference in bending capability between the material of the touch electrode layer 5 and the flexible substrate in the polarizing layer 4, and a separation gap D that is difficult to repair is easily generated.
Disclosure of Invention
Therefore, the invention provides a flexible module, a display panel and a display device, which are used for solving the problem that flexible products are separated from each other when being bent.
According to a first aspect, an embodiment of the present invention provides a flexible module, including a first bonding layer and a second bonding layer, where two surfaces of the first bonding layer and the second bonding layer, which are attached to each other, are formed with engaging bodies that engage with each other, and each engaging body includes a plurality of groove structures formed at intervals on the first bonding layer and a plurality of protrusion structures formed at intervals on the second bonding layer; the groove structures and the projection structures are fixedly engaged in the respective groove structures.
Optionally, the raised structure comprises a counter bore portion and a snap portion, the side wall of the groove structure being fitted within the counter bore portion, the snap portion being gripped by the side of the groove structure.
Optionally, the ratio of the thickness of the second adhesive layer to the height of the protruding structures is 5-20.
Optionally, the groove structures and the protrusion structures are distributed on the first bonding layer and the second bonding layer in an array, respectively.
According to a second aspect, an embodiment of the present invention provides a display panel, including the flexible module of any one of the embodiments, wherein the first adhesive layer is a polarizing film, and the second adhesive layer is a touch film.
Optionally, the display panel has a display area and a non-display area, and the junction body is in the non-display area.
Optionally, the display panel has a display area and a non-display area, and the density of the junction bodies in the display area is less than the density of the junction bodies in the non-display area.
Optionally, in the display area, the junction bodies are arranged as biased ion pixels.
Optionally, in the display area, the engagers are arranged directly opposite the pixel defining layer.
According to a third aspect, embodiments of the present invention provide a display device including the display panel of any one of the above embodiments.
The invention has the following beneficial effects:
1. the embodiment of the invention provides a flexible module, which comprises a first bonding layer and a second bonding layer, wherein joint bodies which are mutually jointed are formed on two surfaces of the first bonding layer and the second bonding layer. When using this tie coat structure to make two adjacent layer membrane material laminate each other in the module, through the structure of protruding structure interengagement and the viscidity of first tie coat and second tie coat on groove structure and the second tie coat on the first tie coat, can be closely fixed with first tie coat and second tie coat, and then can effectively strengthen the adhesion between these two layer membrane material, when having avoided flexible module to buckle, the condition that first tie coat and second tie coat peeled off.
2. The conjugants are distributed in the bonding layer in an array mode, and can uniformly release part of stress in the bending process when the module is bent integrally, so that the bending stress of the module is reduced integrally, and the modules are not easy to separate when the module is bent integrally.
3. The ratio of the thickness of the second bonding layer to the height of the protruding structure is set to be 5-20, the ratio is in the range, the bonding force of the protruding structure and the groove structure after bonding can well meet the bonding force required between the films, the peeling phenomenon of the films can be effectively prevented, in addition, when the ratio is in the range of 5-20, the integral thickness of the flexible module can be well guaranteed, the thickness of the flexible module is not too thick when the film is prevented from peeling.
4. By arranging the junction bodies in the non-display regions, the junction bodies in the non-display regions do not affect the display effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram illustrating the sticking and the peeling of the film layers attached to each other in the flexible module;
FIG. 2 is a schematic view of a flex module according to one embodiment of the present invention;
FIG. 3 shows a schematic view of a coupling body according to the invention;
FIG. 4 is a schematic view of another embodiment of a flex module of the present invention;
FIG. 5 is a schematic view of another embodiment of a flex module of the present invention;
FIG. 6 illustrates a top view of a flex module according to one embodiment of the present invention;
FIG. 7 illustrates a top view of another embodiment of a flex module according to the present invention;
FIG. 8 shows a top view of a display panel according to an embodiment of the invention;
fig. 9 shows a side view of a display panel according to an embodiment of the invention.
Wherein the reference numerals are:
4-a polarizing layer; 5-a touch layer; 6-hard coat film; d-separation gap; 11-a first tie layer; 12-a second tie layer; 13-a groove structure; 14-raised structures, 15-junctions; 16-a countersink region; 17-an engagement portion; 18-a display panel; 19-sub-pixel; 20-a conjugant; 21-pixel definition layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
In this embodiment, a touch layer and a polarizing layer in a flexible display module are taken as an example for description. As shown in fig. 2, the flexible module includes a first adhesive layer 11 and a second adhesive layer 12, and joint bodies joined to each other are formed on both surfaces of the first adhesive layer 11 and the second adhesive layer 12. The conjugant comprises a plurality of groove structures 13 formed on the first bonding layer at intervals and a plurality of convex structures 14 formed on the second bonding layer at intervals; the groove structures 13 and the projection structures 14 are fixedly engaged in the respective groove structures. In this embodiment, the first adhesive layer 11 and the second adhesive layer 12 may be adhesive layers of the same material or adhesive layers of different materials. In this embodiment, the first bonding layer 11 and the second bonding layer 12 are respectively disposed on the bonding surfaces of the two adjacent films in the flexible module, specifically, the first bonding layer 11 is located on the side of the touch layer opposite to the polarizing layer, and the second bonding layer 12 is located on the side of the polarizing layer opposite to the touch layer. The first adhesive layer 11 and the second adhesive layer 12 are bonded together by bonding, so that the polarizing layer and the touch layer are bonded together, preventing the first adhesive layer 11 and the second adhesive layer 12 from being peeled off from each other.
Preferably, when the bonding layer structure is used to make two adjacent film materials in the module adhere to each other, an optical adhesive may be further applied on the bonding surfaces of the first bonding layer 11 and the second bonding layer 12, so that the groove structure on the first bonding layer and the second bonding layer are more tightly bonded together, and further the first bonding layer 11 and the second bonding layer 12 are prevented from being peeled off from each other.
As an alternative embodiment, as shown in fig. 3, the convex structure 14 is in a chevron shape, and includes a countersink portion 16 and an engaging portion 17, the engaging portion 17 may be, for example, a solid ball structure, the side wall of the groove structure 13 is fitted in the countersink portion 16, and the engaging portion is clamped by the side portion of the groove structure 13. The groove structure 13 comprises two oppositely-arranged cylindrical structures and a gap between the cylindrical structures, and the diameter of the gap of the groove structure 13 is the same as the size of the clamping part 17 of the protruding structure 14 or is slightly smaller than the size of the clamping part 17 so as to realize clamping. When the groove structure 13 and the protrusion structure 14 are engaged with each other, the two columns of the groove structure are clamped into the counter sink portion 16 of the protrusion structure 14, and the clamping portion 17 of the protrusion structure 14 is clamped into the gap through hole of the groove structure 13, so that the groove structure 13 and the protrusion structure 14 are tightly engaged, the first bonding layer and the second bonding layer can be tightly fixed, and further, the first bonding layer and the film material where the second bonding layer is located can be tightly bonded.
As an alternative embodiment, the ratio of the thickness of the second adhesive layer to the height of the protruding structures is 5-20. In this embodiment, the ratio is related to the density of the protruding structures, and the greater the density of the protruding structures on the second adhesive layer, the stronger the corresponding bonding force, so that the height of the protruding structures can be reduced appropriately. Conversely, the smaller the density of the protruding structures on the second adhesive layer, the corresponding thickness ratio of the second adhesive layer to the protruding structures may be increased. When the specific ratio of the thickness of the second bonding layer to the height of the protruding structure is in the range of 5-20, the bonding force of the protruding structure and the groove structure after bonding can well meet the bonding force required between the films, the peeling phenomenon of the films can be effectively prevented, in addition, when the ratio is in the range of 5-20, the integral thickness of the flexible module can be well ensured, the requirement of the films for preventing the peeling phenomenon of the films is met, and meanwhile, the thickness of the flexible module is not too thick.
As an alternative embodiment, the two pillar structures of the groove structure 13 are all embedded in the first adhesive layer 11, the gap between the pillar structures does not include the first adhesive layer 11, and the base portion of the countersink portion 16 of the projection structure 14 is embedded in the second adhesive layer 12. Through with in the groove structure 13 all imbeds first tie coat 11 and with the protruding structure 14 part imbed second tie coat 12, can reduce the clearance between first tie coat 11 and second tie coat 12 to two rete that make to use this tie coat to bond more level and more smooth, improve the light-emitting quality of flexible module.
As an alternative embodiment, as shown in fig. 4, two pillar structures of the pillar-shaped snap of the groove structure 13 are all embedded in the first adhesive layer 11, a gap between the pillar structures does not include the first adhesive layer 11, and the counter bore portion of the protrusion structure 14 is all embedded in the second adhesive layer 12, wherein the snap portion 17 and the counter bore of the counter bore portion 16 do not include the second adhesive layer 12. Through with in all embedding first tie coat 11 of groove structure 13 and with in all embedding second tie coat 12 of protruding structure 14, can reduce the clearance between first tie coat 11 and second tie coat 12 to two rete that make to use this tie coat to bond more level and more smooth, improve the light-emitting quality of flexible module. As an alternative embodiment, as shown in fig. 5, two pillar structures of the pillar-shaped snap of the groove structure 13 are all embedded on the surface of the first adhesive layer 11, the gap between the pillar structures does not include the first adhesive layer 11, and the base portion of the counter sink portion of the protruding structure 14 is embedded in the second adhesive layer. Through in will protruding structure 14 part embedding second tie coat 12, can reduce the clearance between first tie coat 11 and the second tie coat 12 to two rete that make to use this tie coat to bond more level and more smooth, improve the light-emitting quality of flexible module.
As an alternative embodiment, the groove structures 13 and the protrusion structures 14 are distributed in an array on the first adhesive layer 11 and the second adhesive layer 12, respectively. For example, the groove structures 13 are uniformly distributed on the first adhesive layer 11 in a diamond shape, the protrusion structures 14 are uniformly distributed on the second adhesive layer 12 in a diamond shape, and the groove structures 13 and the protrusion structures 14 are oppositely arranged. When the first adhesive layer 11 and the second adhesive layer 12 are attached to each other, the groove structures 13 on the first adhesive layer 11 and the protrusion structures 14 on the second adhesive layer 12 are engaged with each other, thereby forming a tightly fixed adhesive layer structure. As shown in fig. 6, the bonding points 15 formed by bonding the groove structures 13 on the first bonding layer 11 and the protrusion structures 14 on the second bonding layer 12 are in a diamond shape and uniformly distributed, and the orthographic projection of the connecting lines and the bonding points 15 in the diamond shape distribution on the display panel does not overlap with the sub-pixels. Because the conjugant is distributed in the bonding layer in a diamond shape, the conjugant can uniformly release part of stress in the bending process when the module is bent integrally, thereby reducing the bending stress of the module integrally, and ensuring that the modules are not easy to separate when the module is bent integrally.
As an alternative embodiment, the groove structures 13 are uniformly distributed on the first adhesive layer 11 in a rectangular shape, the protrusion structures 14 are uniformly distributed on the second adhesive layer 12 in a rectangular shape, the groove structures 13 and the protrusion structures 14 are oppositely arranged, and when the first adhesive layer 11 and the second adhesive layer 12 are attached to each other, the groove structures 13 on the first adhesive layer 11 and the protrusion structures 14 on the second adhesive layer 12 are engaged with each other, so as to form a tightly fixed adhesive layer structure. As shown in fig. 7, the bonding points 15 formed by bonding the groove structures 13 on the first bonding layer 11 and the protrusion structures 14 on the second bonding layer 12 are square and uniformly distributed, and the orthographic projections of the connecting lines and the bonding points 15 distributed in the square on the display panel do not overlap with the sub-pixels. The jointing bodies are distributed in the bonding layer in a square shape, so that the jointing bodies can uniformly release part of stress in the bending process when the module is bent integrally, the bending stress of the module is reduced integrally, and the modules are not easy to separate when the module is bent integrally.
An embodiment of the present invention further provides a display panel, including the flexible module according to any one of the above embodiments, where the first adhesive layer is a polarizing film, and the second adhesive layer is a touch control film.
Through setting up first tie coat into polarizing film, the second tie coat sets up into the touch-control membrane, when polarizing film and the membrane material on the touch-control membrane were laminated each other, through the structure of protruding structure mutual joint on groove structure and the second tie coat on the first tie coat and the viscidity of first tie coat and second tie coat, can be closely fixed polarizing film and touch-control membrane, and then can effectively strengthen the adhesion between these two rete layers.
In an alternative embodiment, the display panel has a display area and a non-display area, and the joint bodies are arranged in the non-display area, so that the joint bodies arranged in the non-display area do not affect the display effect.
As an alternative embodiment, the display panel has a display region and a non-display region, and the density of the junction bodies in the display region is smaller than the density of the junction bodies in the non-display region.
In this embodiment, in the display region, as shown in fig. 8, the junction body is set as a bias ion pixel, and specifically, as shown in fig. 9, the junction body is set to be opposite to the pixel defining layer, so that the light emitting defect such as the brightness reduction of the display panel due to the light shielding of the junction body on the light emitting layer can be prevented, and the display effect can be improved.
The embodiment of the invention also provides a flexible display device, which comprises the display panel of any one of the embodiments, and details are not repeated herein.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A flexible module, comprising: a first adhesive layer (11) and a second adhesive layer (12),
a joint body which is jointed with each other is formed on the two surfaces of the first adhesive layer (11) and the second adhesive layer (12),
the joint body comprises a plurality of groove structures (13) formed on the surface of the first bonding layer facing the second bonding layer at intervals and a plurality of protrusion structures (14) formed on the surface of the second bonding layer facing the first bonding layer at intervals; each groove structure (13) comprises two oppositely-arranged columnar structures and a gap between the columnar structures, and each protrusion structure (14) comprises a counter bore part (16) and a clamping part (17); the clamping part (17) is of a solid ball structure;
the protruding structures (14) are fixedly jointed in the corresponding groove structures (13) to form joint points (15), the two columns of the groove structures (13) are clamped into the counter bore portions (16) of the protruding structures (14), and the clamping portions (17) are clamped into the gaps.
2. The flex module according to claim 1,
the ratio of the thickness of the second adhesive layer (12) to the thickness of the protruding structure (14) is 5-20.
3. Flexible module according to claim 1 or 2,
the groove structures (13) and the protrusion structures (14) are respectively distributed on the first bonding layer (11) and the second bonding layer (12) in an array manner.
4. A display panel comprising the flexible module according to any one of claims 1 to 3, wherein the first adhesive layer (11) is a polarizing film and the second adhesive layer (12) is a touch film.
5. The display panel according to claim 4, wherein the display panel has a display area and a non-display area,
the junction body is located in the non-display region.
6. The display panel according to claim 4, wherein the display panel has a display area and a non-display area,
the density of the junction bodies in the display region is smaller than the density of the junction bodies in the non-display region.
7. The display panel according to claim 6, wherein the junction body is provided as a bias ion pixel in the display region.
8. The display panel according to claim 7, wherein the junction body is provided so as to face the pixel defining layer in the display region.
9. A display device characterized by comprising the display panel of any one of claims 4 to 8.
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| CN201811538727.XA CN109523922B (en) | 2018-12-14 | 2018-12-14 | Flexible module, display panel and display device |
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| CN201811538727.XA CN109523922B (en) | 2018-12-14 | 2018-12-14 | Flexible module, display panel and display device |
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| CN109523922B true CN109523922B (en) | 2021-08-17 |
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Families Citing this family (3)
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| CN111402735A (en) * | 2020-03-26 | 2020-07-10 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN111415589A (en) * | 2020-04-02 | 2020-07-14 | 武汉华星光电半导体显示技术有限公司 | Flexible module |
| CN114170901B (en) * | 2021-11-30 | 2024-04-16 | 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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Application publication date: 20190326 Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of invention: Flexible module, display panel and display device License type: Common License Record date: 20191030 |
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