CN110751909B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110751909B CN110751909B CN201911053236.0A CN201911053236A CN110751909B CN 110751909 B CN110751909 B CN 110751909B CN 201911053236 A CN201911053236 A CN 201911053236A CN 110751909 B CN110751909 B CN 110751909B
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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
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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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
Abstract
The invention relates to a display panel and a display device. A display panel comprises a display area, a bending area and a binding area, wherein the bending area is provided with a graphical structure which is a through hole or a groove. When the bending area is bent, the patterned structure on the bending area forms a notch. When the display panel is spliced to form the display device, the adjacent two display panels can be embedded with each other through the notches of the bending areas, so that the total width occupied by the bending areas of the two display panels can be reduced, the picture splitting feeling of the display device formed by splicing is reduced, and the display effect of the display device is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the development of society, the ultra-large screen display device gradually gets more and more attention. For example, in public squares, dispatch control centers, monitoring centers, command centers, shopping malls, and the like, the demand for oversized screen display devices is becoming more and more prevalent, and the demand for screen sizes is also becoming greater and greater.
The size of a single display panel is generally small due to process technology and production cost limitations. Therefore, as shown in fig. 1, in the conventional technology, a plurality of display panels are usually spliced to obtain an ultra-large screen display device.
The applicant found in the course of implementing the conventional technique that: the display device formed by splicing has strong picture splitting feeling.
Disclosure of Invention
Accordingly, it is necessary to provide a display panel and a display device in order to solve the problem of a display device formed by splicing in the conventional technology that the screen is highly cracked.
The utility model provides a display panel, includes the display area, binds the district and is located the display area and binds the district between the district bending region, the bending region includes a plurality of graphical structures that are located the collinear, graphical structure includes through-hole or recess.
A display device comprises at least two display panels which are spliced with each other, wherein the bonding area is bent towards the back of the display panel through the bending area, and the graphical structure and the non-graphical structure of the bending area are mutually embedded so that the two display panels are spliced.
The display panel comprises a display area, a bending area and a binding area, wherein the bending area is provided with a graphical structure which is a through hole or a groove. When the bending area is bent, the patterned structure on the bending area forms a notch. When the display panel is spliced to form the display device, the adjacent two display panels can be embedded with each other through the notches of the bending areas, so that the total width occupied by the bending areas of the two display panels can be reduced, the picture splitting feeling of the display device formed by splicing is reduced, and the display effect of the display device is improved.
Drawings
Fig. 1 is a schematic structural diagram of a tiled display screen in the conventional art.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a display panel tiling structure according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a display panel according to another embodiment of the present application.
Fig. 5 is a schematic diagram of a display panel tiling structure according to another embodiment of the present application.
Fig. 6 is a schematic diagram of a display panel tiling structure according to another embodiment of the present application.
Fig. 7 is a schematic diagram of a display panel tiling structure according to another embodiment of the present application.
Fig. 8 is a schematic diagram of a display panel tiling structure according to another embodiment of the present application.
Fig. 9 is a schematic diagram of a display panel tiling structure according to another embodiment of the present application.
Fig. 10 is a schematic longitudinal sectional view of a display device according to an embodiment of the present application.
Fig. 11 is a schematic front view of a display device according to an embodiment of the present application.
Fig. 12 is a schematic front view of a display device according to another embodiment of the present application.
Fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present application.
Wherein, the meanings represented by the reference numerals of the figures are respectively as follows:
10. splicing the display screens (by the traditional technology);
110. (conventional art) display panels;
112. (conventional art) a display area;
114. (conventional art) a bezel area;
20. a display device;
22. a light-emitting surface;
24. a backlight surface;
200. a display panel;
210. a display area;
212. a flexible substrate;
214. a thin film transistor layer;
216. a light emitting layer;
218. a packaging layer;
220. a bending zone;
222. a non-patterned structure;
2202. a first surface;
2204. a second surface;
224. patterning the structure;
2242. a groove;
2246. a through hole;
2247. a serrated edge;
230. a binding region;
300. and (7) a cover plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Fig. 1 is a schematic structural diagram of a tiled display screen 10. The tiled display screen 10 typically includes several display panels 110 tiled with respect to each other. Each display panel 110 has a display area 112 and a frame area 114 surrounding the display area 112. When a plurality of display panels 110 are tiled to form the tiled display screen 10, adjacent border regions 114 of two adjacent display panels 110 separate two adjacent display regions 112. Therefore, the frame region 114 of the single display panel 110 is wide, so that the spliced display screen 10 formed by splicing has a strong picture splitting feeling.
In order to solve the above technical problems, the present application provides a display panel 200 and a display device 20 using the display panel 200. As shown in fig. 2, the display panel 200 includes a display region 210, a bending region 220, and a binding region 230.
Specifically, the display region 210 is a light emitting region of the display panel 200. In general, display area 210 may include a flexible substrate 212 and a thin-film-transistor layer 214, a light-emitting layer 216, and an encapsulation layer 218 disposed on flexible substrate 212. Flexible substrate 212 may be a flexible film, such as a polyimide film, for carrying thin-film-transistor layer 214 and light-emitting layer 216, among others. Thin-film-transistor layer 214 is a driving circuit layer of display panel 200, and may include several mutually independent driving circuits. Thin-film-transistor layer 214 is used to drive luminescent layer 216 to emit light. The emissive layer 216 typically includes a plurality of spaced apart emissive pixels, each of which is driven by a driving circuit and each of which operates independently. An encapsulation layer 218 is disposed on a side of light-emitting layer 216 away from thin-film-transistor layer 214 and is used to encapsulate light-emitting pixels of light-emitting layer 216 to protect the light-emitting pixels from water and oxygen. These are conventional in the art and will not be described further. The display region 210 of the display panel 200 generally includes an exit surface 22 for emitting light and a backlight surface 24 opposite the exit surface 22. In the embodiments of the present disclosure, the surface of the display region 210 on which the encapsulation layer 218 is located is the light-emitting surface 22 of the display region 210, and the surface of the display region 210 on which the flexible substrate 212 is located is the backlight surface 24 of the display region 210.
The bending region 220 is located between the display region 210 and the binding region 230, and is used to connect the display region 210 and the binding region 230. The portions of the bending area 220 and the binding area 230 beyond the coverage of the display area 210 together form a frame area of the display screen. Generally, the bending region 220 can be bent toward the backlight surface 24 of the display region 210, so as to reduce the width of the frame region without affecting the normal operation of the display region 210. In general, the film layer structure of the bending region 220 and the binding region 230 may have only the flexible substrate 212, and in this case, the bending region 220, the binding region 230, and the display region 210 may be integrally formed. The film layer structure of the bending region 220 and the binding region 230 may have other film layer structures, and is not limited herein.
In the present embodiment, inflection region 220 has a first surface 2202 proximate to backlight surface 24 and a second surface 2204 opposite first surface 2202. Specifically, when the bending region 220 of the display panel 200 is in a tiled state, a surface of the bending region 220 away from the encapsulation layer 218 is a first surface 2202, and a surface of the bending region 220 close to the encapsulation layer 218 is a second surface 2204. When the bending region 220 of the display panel 200 is in a bent state, the surface inside the bending region 220 is a first surface 2202, and the surface outside the bending region 220 is a second surface 2204. In the present embodiment, as shown in fig. 3, the second surface 2204 of the bending region 220 is provided with a patterned structure 224. The area between two adjacent patterned structures 224 is named as a non-patterned structure 222.
Fig. 3 is a schematic structural diagram of the display panel 200 when the bending region 220 is in a tiled state, and the display panel 200 is observed from the light-emitting surface 22 side of the display panel 200. This view can see second surface 2204 of inflection zone 220. At this time, it can be completely seen that the display panel 200 has a display region 210, a bending region 220 connected to the display region 210, and a binding region 230 connected to the bending region 220. The second surface 2204 of the bending region 220 is provided with a plurality of patterned structures 224, and the patterned structures 224 are located on the same straight line and are recessed into the bending region 220. When the bending region 220 is in a bending state, the plurality of patterned structures 224 form gaps. At this time, the two display panels 200 adjacent to the bending region 220 can be mutually embedded through the gap formed by the patterned structure 224 of the bending region 220.
The fact that the patterned structure 224 is recessed into the bending region 220 means that the patterned structure 224 extending from the second surface 2204 of the bending region 220 is recessed from the second surface 2204 toward the first surface 2202. Thus, when two adjacent display panels 200 are embedded by the patterned structure 224 of the bending region 220, the separation distance between two adjacent display regions 210 can be reduced. When two adjacent display panels 200 are embedded by the patterned structures 224 of the bending regions 220, the patterned structure 224 of the bending region 220 of one display panel 200 is connected with the non-patterned structure 222 of the bending region 220 of the other display panel 200, so that the non-patterned structure 222 of one display panel 200 is inserted into the patterned structure 224 of the other display panel 200.
More specifically, the display panel 200 of the present application includes a display region 210, a bending region 220, and a binding region 230. Inflection region 220 is connected between display region 210 and binding region 230, and when inflection region 220 is bent toward backlight surface 24 side of display region 210 in a U-shape, inflection region 220 has a first surface 2202 near backlight surface 24 and a second surface 2204 opposite to first surface 2202. The second surface 2204 is provided with a patterned structure 224 recessed inside the bending region 220. When the display panel 200 is used for splicing, the bending areas 220 of two adjacent display panels 200 are embedded through the gaps formed by the graphical structures 224, so that the total width occupied by the bending areas 220 of the two display panels 200 can be reduced to a certain extent, the picture splitting feeling of the display device 20 formed by splicing is reduced, and the display effect of the display device 20 is improved.
In one embodiment, as shown in fig. 3, the patterned structure 224 disposed on the second surface 2204 of the bending region 220 is a groove 2242. The grooves 2242 can be arranged on the same straight line, the grooves 2242 on the same straight line are convenient to manufacture, the production process is simplified, and the efficiency is improved.
In the present embodiment, the patterned structures 224 are arranged along the same straight line. In other words, the center point of each patterned structure 224 is located on the same straight line. The patterned structure 224 may be a groove 2242. When the patterned structure 224 is a groove 2242, when two adjacent display panels 200 are embedded by the bending regions 220, the non-patterned structure 222 of one bending region 220 is inserted into the groove 2242 of the other bending region 220.
In another embodiment, as shown in fig. 4 or fig. 5, in the display panel 200, the patterned structure 224 disposed on the second surface 2204 of the bending region 220 is a through hole 2246. The through holes 2246 are arranged on the same straight line.
In this embodiment, the patterned structures 224 are still arranged along the same straight line. The patterned structure 224 may be a via 2246 that passes through from the second surface 2204 to the first surface 2202. When the patterned structures 224 are through holes 2246, two adjacent display panels 200 are embedded by the bending regions 220, and the non-patterned structure 222 of one bending region 220 is inserted into the through hole 2246 of the other bending region 220.
In one embodiment, as shown in FIG. 5, the patterned structure 224 is arranged in a direction parallel to the lower edge of the display region 210.
Specifically, the lower edge of the display area 210 refers to the edge of the display area 210 close to the bending area 220. The arrangement direction of the patterned structure 224 is parallel to the lower edge of the display area 210, that is, the patterned structure 224 is arranged along the same straight line in the above embodiment, and the straight line is parallel to the lower edge of the display area 210, so that the structure can reduce the distance between two adjacent display panels when the bending area of the display panel is bent, further reduce the picture splitting feeling caused by the frame of the display panel, and improve the display effect.
Further, as shown in fig. 5, in the display panel 200, the patterned structures 224 are equally spaced and distributed on the same straight line, and a distance between adjacent patterned structures 224 is smaller than or equal to an aperture of the patterned structure 224.
Specifically, as is known from the above description, the patterned structure 224 may be a groove 2242 or a through hole 2246. The patterned structures 224 are arranged in a straight line. In the present embodiment, the patterned structures 224 are distributed on the same straight line at equal intervals, i.e., the distance between two adjacent patterned structures 224 is equal, as shown in fig. 5.
In the present embodiment, the distance between two adjacent patterned structures 224 may be equal to or smaller than the aperture of the patterned structure 224. The aperture of patterned structure 224 refers to the longitudinal width of patterned structure 224 in the drawing. The spacing between two adjacent patterned structures 224 can be understood as the maximum distance between two adjacent patterned structures 224. The distance between two adjacent patterned structures 224 is equal to or smaller than the aperture of the patterned structures 224, that is, when two adjacent display panels 200 are spliced, the non-patterned structure 222 of the bending region 220 of one display panel 200 is inserted into the patterned structure 224 of the bending region 220 of the other display panel 200, so that the total width occupied by the bending regions 220 of the two display panels 200 is reduced, the split feeling of the picture of the display device 20 formed by splicing is reduced, and the display effect of the display device 20 is improved.
In one embodiment, as shown in fig. 5, one end of the patterned structure 224 extends to the display region 210, and the other end of the patterned structure 224 extends to the binding region 230, so that the contact area between two adjacent display panels can be further increased by increasing the area of the patterned structure 224, and the card force is increased, so that the display panels are not easily detached. Meanwhile, the area of the frame of the adjacent display panel is further reduced, and the fracture feeling is reduced.
In one embodiment, a distance of a predetermined point of a graphical structure from the display area (210) is less than or equal to a distance of the predetermined point of the graphical structure from the binding area (230). Specifically, the predetermined configuration point refers to a fixed point of the predetermined configuration structure 224, and the predetermined configuration point is located at the same position relative to different configuration structures 224 of the same display panel 200.
In this embodiment, the graphical structure preset may be a center point of the graphical structure 224. When the distance from the predetermined point of the graphic structure to the display area 210 may be equal to the distance from the predetermined point of the graphic structure to the binding area 230, after the bending area 220 is bent, the longitudinal section of the bending area 220 is a semicircle with a central angle of 180 °. At this time, in order to maximally reduce the total width of the bending region 220 when two adjacent display panels 200 are spliced, one end of the through hole 2246 may extend to the display region 210, and the other end may extend to the binding region 230.
In another embodiment, as shown in fig. 6 or 7, the distance of the preset point of the graphic structure from the display area 210 may be smaller than the distance of the preset point of the graphic structure from the binding area 230.
Specifically, after the bending region 220 is bent, the orthographic projection of the edge of the binding region 230 close to the bending region 230 on the display region 210 falls inside the display region 210, and at this time, compared with the previous embodiment, the frame width of a single display panel 200 can be reduced, but at this time, the through hole 2246 is not necessarily extended to the binding region, so that the distance from the preset point of the graphical structure to the display region 210 is smaller than the distance from the preset point of the graphical structure to the binding region 230, thereby maximizing the effect of splicing the display panels 200 and protecting the strength of the bending region 220.
In one embodiment, when the patterned structure 224 is the through hole 2246, the through hole 2246 may be a square hole, as shown in fig. 6 or fig. 7, and the square hole may be formed by etching, which is simple in process and improves production efficiency.
In yet another embodiment, as shown in FIG. 8, when the patterned structure 224 is a through-hole 2246, the through-hole 2246 has serrated edges 2247.
Specifically, along the extending direction of the through hole 2246, the through hole 2246 may be provided with a serrated edge 2247. Thus, when two adjacent display panels 200 are engaged with each other through the bending region 220, the two saw-tooth edges can be engaged with each other. Thereby increasing the connectivity between the two display panels 200 that are fitted to each other, and making the fitting between the adjacent two display panels 200 more firm.
In yet another embodiment, as shown in FIG. 9, when the patterned structure 224 is a through hole 2246 penetrating the bending region 220, the edge of the through hole 2246 between the display region 210 and the binding region 230 can be set to be an arc line.
Specifically, when the patterned structure 224 is a through hole 2246 penetrating the bending region 220, the edge of the through hole 2246 between the display region 210 and the binding region 230 is an arc line, which means that when the patterned structure 224 is the through hole 2246 penetrating the bending region 220, the edge of the non-patterned structure 222 connecting the display region 210 and the binding region is an arc line. Generally, along the left-to-right direction of the paper surface, the patterned structure 224 may have a shape with a narrow middle and two wide sides or the patterned structure 224 may have a shape with a wide middle and two narrow sides, so that when two adjacent display panels are spliced with each other, the contact area of the bending region of the display panel can be further increased, and the splicing is more reliable and is not easy to fall off.
In general, the width of the through hole 2246 of one display panel 200 may be the same at both ends in the lateral direction and equal to or greater than the maximum width of the non-patterned structure 222 of another display panel 200, so that the non-patterned structure 222 of another display panel 200 can be inserted into the through hole 2246 of the display panel 200.
The present application further provides a display device 20 comprising at least two display panels 200 as described in any of the above embodiments, which are tiled with each other. Wherein, for any one of the display panels 200, the binding region 230 is bent toward the back of the display panel 200 by the bending region 220. At this time, two adjacent display panels 200 are interfitted by the patterned structure 224 and the unpatterned structure 222, so that the two display panels 200 are spliced.
Specifically, the display device 20 includes at least two display panels 200. Wherein each display panel includes a display region 210, a binding region 230, and a bending region 220 between the display region 210 and the binding region 230. The bending region 220 includes a plurality of patterned structures 224 located on the same line. The patterned structure 224 is a groove 2242 or a through hole 2246 to form a notch after the bending region 220 is bent.
After two adjacent display panels 200 are bent by the display bending region 220, the notches formed by the patterned structures 224 are engaged with each other, so as to form the tiled display device 20.
Wherein the patterned structure 224 may be a groove 2242 or a through hole 2246 penetrating the bending region 220. When the patterned structure 224 is the groove 2242, the longitudinal section of the display device 20 formed by splicing at the fitting position is shown in fig. 10, and the front view of the splicing is shown in fig. 11. When the patterned structures 224 are through holes 2246, a front view of the display device 20 formed by splicing is shown in fig. 12.
In one embodiment, as shown in FIG. 13, the display device 20, which may further include a cover plate 300.
Specifically, the cover plate 300 may be a transparent cover plate 300 made of glass or plastic. It covers the light-emitting surface 22 side of the display panel 200 and covers all the display panels 200 constituting the display device 20 to protect the display panels 200.
In the present embodiment, a portion of the cover plate 300 corresponding to the display area 210 is a flat plate, and a portion of the cover plate 300 corresponding to the bending area 220 is a concave lens. In other words, for a display device 20 formed by a plurality of display panels 200, at the frame joint of the plurality of display panels 200, the cover plate 300 has a groove recessed toward the inside thereof, and the surface of the groove is in the shape of a circular arc. Thus, the cover plate 300 corresponding to the non-display region (including the bending region 220) inside the display device 20 formed by splicing can be made to be a concave lens, so that the picture splitting feeling of the spliced display device 20 can be visually weakened by the refraction effect of the concave lens.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A display panel comprising a display area (210), a binding area (230), and a bending area (220) located between the display area (210) and the binding area (230), wherein the bending area (220) comprises a plurality of patterned structures (224) located on the same straight line, and the patterned structures (224) comprise through holes (2246) or grooves (2242); the graphical structures are used for being mutually embedded with non-graphical structures of the display panel which is spliced with the display panel, wherein the non-graphical structures are areas between two adjacent graphical structures.
2. The display panel according to claim 1, wherein the patterned structure (224) is arranged in a direction parallel to a lower edge of the display area (210).
3. The display panel according to claim 2, wherein the patterned structures (224) are arranged at equal intervals, and a distance between adjacent patterned structures (224) is smaller than or equal to an aperture of the patterned structure (224).
4. A display panel according to claim 2 or 3, characterized in that one end of the patterned structure (224) extends to the display area (210) and the opposite end of the patterned structure (224) extends to the binding area (230).
5. The display panel according to claim 2 or 3, wherein a distance of a preset point of the graphical structure (224) from the display area (210) is smaller than or equal to a distance of the preset point of the graphical structure from the binding area (230).
6. The display panel according to claim 2, wherein the through hole (2246) has a serrated edge (2247).
7. The display panel according to claim 4, wherein the edge of the through hole (2246) between the display area (210) and the binding area (230) is an arc.
8. The display panel according to claim 2, wherein the through hole (2246) is a square hole.
9. A display device, characterized in that the display device (20) comprises at least two display panels (200) as claimed in any one of claims 1 to 8, the bonding region (230) is bent towards the back of the display panel (200) by the bending region (220), and the patterned structure (224) and the unpatterned structure (222) of the bending region (220) are embedded with each other to splice the two display panels (200).
10. The display device according to claim 9, further comprising:
the cover plate (300) is positioned on one side, far away from the binding region (230), of the display region (220) and covers the at least two display panels (200), and the parts, corresponding to the bending regions (220), of the display panels (200) are concave lenses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911053236.0A CN110751909B (en) | 2019-10-31 | 2019-10-31 | Display panel and display device |
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|---|---|---|---|
| CN201911053236.0A CN110751909B (en) | 2019-10-31 | 2019-10-31 | Display panel and display device |
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| CN110751909A CN110751909A (en) | 2020-02-04 |
| CN110751909B true CN110751909B (en) | 2022-03-22 |
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| CN113257121B (en) * | 2021-03-29 | 2023-04-07 | 北海惠科光电技术有限公司 | Display device, manufacturing method thereof and splicing display device |
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