CN114882794A - Display module - Google Patents
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- CN114882794A CN114882794A CN202210568433.1A CN202210568433A CN114882794A CN 114882794 A CN114882794 A CN 114882794A CN 202210568433 A CN202210568433 A CN 202210568433A CN 114882794 A CN114882794 A CN 114882794A
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- corner
- display
- display module
- adhesive layer
- optical adhesive
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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 embodiment of the application discloses a display module, which comprises a flexible display panel and a cover plate, wherein the flexible display panel comprises a flat display part, a plurality of bending display parts and a plurality of corner display parts; the plane part is used for correspondingly pasting the plane display part, the bending part is used for correspondingly pasting the bending display part, the corner part is used for correspondingly pasting the corner display part, the surface of the corner part facing the corner display part is provided with a containing groove, and at least part of the corner display part is contained in the containing groove. The application aims at reducing the redundant production in laminating back flexible display panel four corners to obtain better visual effect and higher screen ratio, and expand the display application field of four-curved-surface screen.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module.
Background
With the development of the comprehensive screen technology, the edge of the curved screen is very smooth, the hand-hurting feeling of the traditional mobile phone is avoided, the hand feeling is richer and finer, and the curved surface structure can obtain a larger display area in a limited space, so that the curved screen becomes one of the mainstream of the current screens by means of the perfect human body fit and the visual effect. The four-curved-surface screen is curved on the left and right of the screen, and is also curved on the upper and lower parts and four corners. Therefore, the upper frame and the lower frame can be hidden in the same way as the left frame and the right frame, and the visual effect is better.
In the research and practice process to prior art, the inventor of this application finds, all adopt the in-process of curved surface form with four edges and four corner parts of display panel, when adopting conventional profile modeling laminating apron and display panel, redundant part can appear in four corners of display panel, and this part can lead to producing uncontrollable laminating fold, influences the display effect, and to a great extent has restricted the application of four sides curved screen. Therefore, it is one of the problems to be solved to avoid the generation of uncontrollable lamination wrinkles due to the redundancy of four corners.
Disclosure of Invention
The embodiment of the application provides a display module assembly, through reducing the redundant production in laminating back flexible display panel four corners to obtain better visual effect and higher screen occupation ratio, expand four curved surface screen display application.
The embodiment of the application provides a display module assembly, include:
a flexible display panel, including a planar display portion, a plurality of curved display portions, and a plurality of corner display portions, where the planar display portion has a plurality of first side edges and a plurality of first corners arranged circumferentially, one first corner is located between two adjacent first side edges, one curved display portion is connected to one first side edge, and one corner display portion is connected to one first corner; and
the cover plate comprises a plane part, a plurality of bent parts and a plurality of corner parts, the cover plate is provided with a plurality of second side edges and a plurality of second corner edges which are arranged in the circumferential direction, one second corner edge is positioned between two adjacent second side edges, one bent part is connected to one second side edge, and one corner part is connected to the second corner edge;
the plane part is used for correspondingly sticking the plane display part, the bending part is used for correspondingly sticking the bending display part, the corner part is used for correspondingly sticking the corner display part, the surface of the corner part facing the corner display part is provided with a containing groove, and at least part of the corner display part is contained in the containing groove.
Optionally, in some embodiments of the present application, the number of the receiving grooves is plural, and the plurality of receiving grooves are arranged at the corner portions at intervals.
Optionally, in some embodiments of the application, in a direction from the corner portion to a side away from the planar portion, the number of the accommodating grooves arranged in the corner portion increases progressively.
Optionally, in some embodiments of the present application, the notches of the plurality of receiving grooves gradually increase from the corner portion in a direction from a side close to the planar portion to a side away from the planar portion.
Optionally, in some embodiments of the application, in a direction from a middle area of the corner portion toward two adjacent curved portions, the arrangement density of the plurality of receiving grooves on the corner portion decreases progressively.
Optionally, in some embodiments of the present application, the groove wall and the groove bottom of the accommodating groove are both disposed in an arc surface.
Optionally, in some embodiments of the present application, the receiving groove of the corner portion is a blind hole structure.
Optionally, in some embodiments of the present application, the radius R of the blind via structure is 5 micrometers ≦ R ≦ 15 micrometers.
Optionally, in some embodiments of this application, the display module assembly further includes a first optical adhesive layer, a second optical adhesive layer and an elastic substrate, the first optical adhesive layer and the second optical adhesive layer are respectively attached to two opposite surfaces of the flexible display panel, the first optical adhesive layer is located the flexible display panel faces to one side of the cover plate, and the elastic substrate is located the second optical adhesive layer is away from one side of the flexible display panel.
Optionally, in some embodiments of the present application, the display module further includes a plurality of light emitting devices and a plurality of connecting wires, a plurality of the light emitting devices and a plurality of the connecting wires are all disposed on the corner display portion, a plurality of the light emitting devices and the receiving grooves at the corner portion are arranged in a staggered manner, one of the connecting wires is disposed on the corner display portion and electrically connected to the two light emitting devices.
The flexible display panel and the apron of display module assembly of the embodiment of the application are in the laminating in-process, plane portion corresponds pastes and establishes the flat display portion, the crooked display portion is located in the subsides of flexion correspondence, corner portion corresponds pastes and locates the corner display portion, simultaneously because the corner portion at the apron is equipped with the storage tank towards the surface of corner display portion, not only avoid influencing display module assembly's whole outward appearance, make the redundant part that corner display portion produced simultaneously can stabilize the holding in the storage tank when the laminating, thereby with the redundancy of consuming flexible display panel at laminating in-process, and then reduced the uncontrollable fold that redundant produced, obtain better visual effect and higher screen and account for the ratio, experience with the vision that promotes the user.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display panel and a cover plate of a display module provided in an embodiment of the present application;
fig. 2 is a schematic view of an assembly structure of a display module according to an embodiment of the present disclosure;
fig. 3 is an enlarged schematic view at a in fig. 2.
Fig. 4 is an exploded schematic view of a forming process of a display module according to an embodiment of the present disclosure;
fig. 5 is a schematic view illustrating a receiving groove of a cover plate of a display module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a cover plate of a display module according to an embodiment of the present disclosure;
fig. 7 is a partially enlarged schematic view of a cover plate of a display module according to another embodiment of the present disclosure;
fig. 8 is a partially enlarged schematic view of a cover plate of a display module according to still another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the present application provides a display module 100. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 1 and 2, a display module 100 provided by the present application includes a flexible display panel 10 and a cover plate 20, where the flexible display panel 10 includes a planar display portion 11, a plurality of curved display portions 12, and a plurality of corner display portions 13. The flat display portion 11 has a plurality of first sides 111 and a plurality of first corners 112, a first corner 112 is located between two adjacent first sides 111, a curved display portion 12 is connected to a first side 111, and a corner display portion 13 is connected to a first corner 112. The cover plate 20 includes a flat surface portion 21, a plurality of bent portions 22, and a plurality of corner portions 23. The cover plate 20 has a plurality of second side edges 211 and a plurality of second corners 212 circumferentially, wherein a second corner 212 is located between two adjacent second side edges 211, a curved portion 22 is connected to a second side edge 211, and a corner portion 23 is connected to a second corner 212. The flat portion 21 is used for correspondingly attaching the flat display portion 11, the curved portion 22 is used for correspondingly attaching the curved display portion 12, the corner portion 23 is used for correspondingly attaching the corner display portion 13, the surface of the corner portion 23 facing the corner display portion 13 is provided with a containing groove 231, and at least part of the corner display portion 13 is contained in the containing groove 231.
So in the laminating process, plane portion 21 corresponds pastes and establishes plane display portion 11, crooked display portion 12 is located in the correspondence of flexion 22, corner portion 23 corresponds pastes and locates corner display portion 13, simultaneously because corner portion 23 at apron 20 is equipped with storage tank 231 towards the surface of corner display portion 13, not only avoid influencing the whole outward appearance of display module assembly 100, make the redundant part that corner display portion 13 produced simultaneously can stabilize the holding in storage tank 231 when the laminating, thereby in order to consume the redundancy at laminating in-process flexible display panel 10, and then reduced the uncontrollable fold that redundancy produced, obtain better visual effect and higher screen and account for than, in order to promote user's visual experience.
It is understood that the plurality of curved display parts 12 and the plurality of corner display parts 13 of the flexible display panel 10 are bent at an angle with respect to the same side of the flat display part 11 to form an edge of a four-curved surface. The number of the curved display portions 12 matches the number of the sides of the flat display portion 11 of the flexible display panel 10, the flat display portion 11 may be a triangle having three sides, or may be a quadrangle having four sides, or may be a pentagon having five sides, and the number of the curved display portions 12 may be adjusted according to actual production requirements. The plurality of bent portions 22 and the plurality of corner portions 23 of the cover plate 20 are also bent at a certain angle with respect to the same side of the flat surface portion 21 to form a four-curved edge in the same manner.
The notch of the receiving groove 231 may be a rectangular opening, a fan-shaped opening, or a circular opening. By forming the receiving groove 231, when the part of the corner display portion 13 is received in the receiving groove 231, the part is abutted and limited by the circumferential groove wall of the receiving groove 231, so as to increase the contact area between the corner display portion 13 of the flexible display panel 10 and the corner portion 23 of the cover plate 20, further ensure the stability of the redundant receiving of the corner display portion 13 in the receiving groove 231, and improve the display effect after the flexible display panel 10 and the cover plate 20 are attached.
In some embodiments, referring to fig. 2 and fig. 3, the display module 100 further includes a first optical adhesive layer 30, a second optical adhesive layer 40, and an elastic substrate 50, wherein the first optical adhesive layer 30 and the second optical adhesive layer 40 are respectively attached to two opposite surfaces of the flexible display panel 10, the first optical adhesive layer 30 is located on one surface of the flexible display panel 10 facing the cover plate 20, and the elastic substrate 50 is located on one surface of the second optical adhesive layer 40 away from the flexible display panel 10.
The optical adhesive layer can reduce glare, reduce loss of emitted light, increase brightness, provide high transmittance, reduce energy consumption, increase contrast, especially under strong light irradiation, and has certain flexibility. The first optical adhesive layer 30 and the second optical adhesive layer 40 are disposed on two opposite sides of the flexible display panel 10, so as to improve the display effect of the flexible display panel 10. It is understood that the first optical adhesive layer 30 is located on a side of the flexible display panel 10 facing the cover plate 20, so that the first optical adhesive layer 30 is sandwiched between the flexible display panel 10 and the cover plate 20 after being attached. After the cover plate 20 and the flexible display panel 10 are attached to each other, at least a portion of the first optical adhesive layer 30, at least a portion of the second optical adhesive layer 40, and at least a portion of the elastic substrate 50 are also abutted in the receiving groove 231 by the redundancy of the flexible display panel 10. The elastic substrate 50 is disposed on a surface of the second optical adhesive layer 40 away from the flexible display panel 10, and the elastic substrate 50 may be made of silicon gel or rubber. The elastic substrate 50 provides a supporting function during the attaching process to protect the flexible display panel 10 from being damaged, so as to ensure the normal use of the display module 100.
In some embodiments, referring to fig. 2 and 3, the display module 100 further includes a plurality of light emitting devices 60 and a plurality of connecting traces 70, the plurality of light emitting devices 60 are disposed on the corner display portion 13 and are disposed in a staggered manner with respect to the receiving groove 231 of the corner portion 23, and one of the connecting traces 70 is disposed on the corner display portion 13 and connects the two light emitting devices 60. It can be understood that, by arranging the light emitting device 60 and the receiving groove 231 of the corner portion 23 in a staggered manner, the light emitting device 60 is prevented from shifting after being attached, and the stability of the attached light emitting device 60 is improved. The light emitting device 60 may be a Mini-LED (submillimeter light emitting diode) or a Micro-LED (Micro light emitting diode), and the Mini-LED has a micron-sized size, so that a higher resolution can be provided, and a display effect can be improved.
Referring to fig. 4, the four-side curved forming method of the display module 100 according to the present embodiment includes the following steps: 1. attaching one surface of the flexible display panel 10 to the first optical adhesive layer 30; 2. the second optical adhesive layer 40 and the elastic substrate 50 with better elasticity are respectively overlapped on the other surface of the flexible display panel 10; 3. the first optical adhesive layer 30, the flexible display panel 10, the second optical adhesive layer 40 and the elastic substrate 50 together form a display module; 4. aligning and attaching the display module to the cover plate 20 by using a specific profiling panel 200, and removing the profiling panel 200 after the attachment is finished; 5. defoaming; 6. and curing at a high temperature to prevent the first optical adhesive layer 30 and the second optical adhesive layer 40 from being rebounded, thereby completing the four-side bending molding of the display module 100.
Referring to fig. 5, in some embodiments of the present disclosure, the groove wall and the groove bottom of the accommodating groove 231 are both disposed in an arc surface. Wherein, in order to increase the contact area of the corner display portion 13 and the corner portion 23, thereby being arc-shaped through the groove wall and the groove bottom of the accommodating groove 231, so that the redundancy of the corner display portion 13 of the flexible display panel 10 is accommodated behind the accommodating groove 231 to be attached to the arc-shaped, thereby achieving the effect of increasing the contact area, and simultaneously the arrangement of the arc-shaped makes the corner display portion 13 more convenient to be guided into the accommodating groove 231, thereby further improving the effect that the accommodating groove 231 of the corner portion 23 consumes the redundancy of the flexible display panel 10.
With reference to fig. 4 and 5, the receiving groove 231 of the corner portion 23 is a blind hole structure. Since the opening of the blind hole structure is smaller, the accommodating groove 231 of the corner portion 23 is a blind hole structure for facilitating the processing, and the processing efficiency of the accommodating groove 231 of the cover plate 20 is further improved.
Furthermore, the radius R of the blind hole structure is more than or equal to 5 microns and less than or equal to 15 microns. Wherein the resolution limit of human eyes meets the rayleigh criterion:
the diameter D of the pupil of the human eye is 2mm to 9mm, the median D is 5mm, and the central wavelength of visible light, namely the wavelength lambda to which the human eye is most sensitive, is 550 nm. The display screen is placed at the position where the eye d is 25cm, and the minimum distance which can be distinguished by human eyes is as follows: y ═ θ · d ═ 1.34 × 10 -4 rad)×(25×10 - 2 m)＝3.35×10 -5 And m is 33.5 μm. The radius R of the blind via structure is set to be between 5 μm and 15 μm to further improve the final display effect.
Optionally, referring to fig. 4 and 5, the longitudinal cross section of the blind hole structure is hemispherical, wherein the longitudinal cross section of the blind hole structure is hemispherical, so as to accommodate more redundant volumes of the corner display portion 13, meanwhile, the opening of the accommodating groove 231 is a circular opening, the opening size of the accommodating groove 231 is gradually reduced along the groove depth direction, and meanwhile, the inner wall of the blind hole structure is in a spherical surface arrangement, so that the redundancy of the corner display portion 13 is more conveniently led into the blind hole structure, and further, the effect that the redundancy of the flexible display panel 10 is consumed by the accommodating groove 231 of the corner portion 23 is further improved. Taking R as 10 μm as an example, a circle having a contact area of R10 μm between the flexible display panel 10 and the cover plate 20 before the region of the containing groove 231 is calculated, and S is calculated according to a formula of the area of the circle 1 ＝π*10 2 After the accommodating groove 231 with the hemispherical blind hole structure is formed, the contact area between the flexible display panel 10 and the cover plate 20 is a hemisphere with an R of 10 μm, and S is calculated according to the sphere area formula 2 ＝2π10 2 That is, the contact area of the receiving groove 231 with the hemispherical blind hole structure is significantly increased, and it should be noted that the radius of the blind hole and the number of the holes can be changed according to the redundant wrinkle condition.
Referring to fig. 6, in some embodiments of the present disclosure, the number of the receiving grooves 231 is multiple, and the receiving grooves 231 are arranged at the corner 23 at intervals. It can be understood that the plurality of receiving grooves 231 is provided to receive more redundant volumes of the corner display portion 13, so as to further enhance the effect of the receiving grooves 231 of the corner portion 23 consuming the redundancy of the flexible display panel 10.
Further, the number of the plurality of receiving grooves 231 arranged in the corner portion 23 increases in a direction from the corner portion 23 to a side away from the planar portion 21 from a side close to the planar portion 21. It is understood that, in the attaching process of the cover plate 20 and the flexible display panel 10, the flat display portion 11 and the flat portion 21 are generally attached first, then the curved display portion 12 and the curved portion 22 are attached, and finally the corner display portion 13 and the corner portion 23 are attached, so that the generated redundant portions are more piled up and formed at the edge of the middle area of the corner display portion 13. The arrangement number of the plurality of receiving grooves 231 on the corner portion 23 from the side close to the planar portion 21 to the side far from the planar portion 21 is increased, so as to effectively eliminate the redundancy at the edge, thereby further improving the effect that the receiving grooves 231 of the corner portion 23 consume the redundancy of the flexible display panel 10.
In another embodiment, referring to fig. 7, the notches of the plurality of receiving grooves 231 are gradually increased in a direction from the corner portion 23 to a side away from the planar portion 21 from a side close to the planar portion 21. Wherein, the redundant part that results in because the laminating technology can be more piles up and form the edge at the middle zone of corner display portion 13, and department, so through the notch with a plurality of storage tank 231 from being close to the gradual increase of one side of plane portion 21 to the direction of one side of keeping away from plane portion 21 on corner portion 23, so with the redundancy that is located the edge in order to effectively to eliminating to further improve storage tank 231 of corner portion 23 and consume the redundant effect of flexible display panel 10.
In another embodiment, referring to fig. 8, the plurality of receiving grooves 231 are arranged on the corner portion 23 with decreasing density from the middle region of the corner portion 23 toward the two adjacent curved portions 22. In this way, the density of the plurality of receiving grooves 231 arranged in the direction from the middle area of the corner portion 23 to the two adjacent curved portions 22 is decreased gradually, so that the density of the middle area of the corner portion 23 is increased, thereby effectively eliminating the redundancy of the middle area of the corner portion 13, and further improving the effect that the receiving grooves 231 of the corner portion 23 consume the redundancy of the flexible display panel 10.
The display module provided by the embodiment of the present application is described in detail above, and a specific example is applied to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides a display module assembly, its characterized in that, display module assembly includes:
a flexible display panel, including a planar display portion, a plurality of curved display portions, and a plurality of corner display portions, where the planar display portion has a plurality of first side edges and a plurality of first corners arranged circumferentially, one first corner is located between two adjacent first side edges, one curved display portion is connected to one first side edge, and one corner display portion is connected to one first corner; and
the cover plate comprises a plane part, a plurality of bent parts and a plurality of corner parts, the cover plate is provided with a plurality of second side edges and a plurality of second corner edges which are arranged in the circumferential direction, one second corner edge is positioned between two adjacent second side edges, one bent part is connected to one second side edge, and one corner part is connected to the second corner edge;
the plane part is used for correspondingly sticking the plane display part, the bending part is used for correspondingly sticking the bending display part, the corner part is used for correspondingly sticking the corner display part, the surface of the corner part facing the corner display part is provided with a containing groove, and at least part of the corner display part is contained in the containing groove.
2. The display module as claimed in claim 1, wherein the number of the receiving grooves is plural, and the plurality of receiving grooves are arranged at the corner portions at intervals.
3. The display module according to claim 2, wherein the number of the plurality of receiving grooves arranged in the corner portion increases in a direction from the corner portion to a side away from the planar portion.
4. The display module according to claim 2, wherein the notches of the plurality of receiving grooves are gradually increased in a direction from the corner portion from a side close to the planar portion to a side away from the planar portion.
5. The display module as claimed in claim 2, wherein the arrangement density of the plurality of receiving grooves decreases from the middle area of the corner portion toward the two adjacent curved portions.
6. The display module as claimed in claim 1, wherein the groove wall and the groove bottom of the receiving groove are both curved.
7. The display module according to claim 6, wherein the receiving groove of the corner portion is a blind hole structure.
8. The display module as claimed in claim 7, wherein the radius R of the blind via structure is 5 microns R15 microns.
9. The display module according to claim 1, wherein the display module further comprises a first optical adhesive layer, a second optical adhesive layer, and an elastic substrate, the first optical adhesive layer and the second optical adhesive layer are respectively attached to two opposite surfaces of the flexible display panel, the first optical adhesive layer is located on one surface of the flexible display panel facing the cover plate, and the elastic substrate is located on one surface of the second optical adhesive layer away from the flexible display panel.
10. The display module according to claim 1, wherein the display module further comprises a plurality of light emitting devices and a plurality of connecting traces, the plurality of light emitting devices and the plurality of connecting traces are disposed on the corner display portion, the plurality of light emitting devices and the receiving grooves of the corner portions are disposed in a staggered manner, and one connecting trace electrically connects the two light emitting devices.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210568433.1A CN114882794B (en) | 2022-05-23 | 2022-05-23 | display module |
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| CN202210568433.1A CN114882794B (en) | 2022-05-23 | 2022-05-23 | display module |
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| CN114882794B CN114882794B (en) | 2023-09-26 |
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| CN117095618A (en) * | 2023-10-16 | 2023-11-21 | 长春希达电子技术有限公司 | Flexible display panel preparation method and display device |
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| CN114078384A (en) * | 2021-11-03 | 2022-02-22 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
| CN114038324A (en) * | 2021-11-24 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Supporting assembly and flexible display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115359726A (en) * | 2022-09-21 | 2022-11-18 | 武汉天马微电子有限公司 | Four curved surface flexible display device |
| CN115359726B (en) * | 2022-09-21 | 2023-07-21 | 武汉天马微电子有限公司 | Four-curved-surface flexible display device |
| CN117095618A (en) * | 2023-10-16 | 2023-11-21 | 长春希达电子技术有限公司 | Flexible display panel preparation method and display device |
| CN117095618B (en) * | 2023-10-16 | 2024-03-15 | 长春希达电子技术有限公司 | Flexible display panel preparation method and display device |
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