CN112071881A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112071881A CN112071881A CN202010941779.2A CN202010941779A CN112071881A CN 112071881 A CN112071881 A CN 112071881A CN 202010941779 A CN202010941779 A CN 202010941779A CN 112071881 A CN112071881 A CN 112071881A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
Abstract
The invention provides a display panel and a display device. The display panel has a planar area and a curved area surrounding the planar area. The display panel further includes: a plurality of pixel units arranged in the planar area and the curved area; and the connecting line is positioned between two adjacent pixel units. The connecting wire includes: the first metal wire is arranged in the plane area and/or the curved area and is of a linear structure; and the second metal wire is arranged in the curved surface area and is of an extensible structure.
Description
Technical Field
The invention relates to the field of display devices, in particular to a display panel and a display device.
Background
With the development of smart phones, the differentiation of smart phones is smaller and smaller, and each family wants to introduce new technologies including a full-screen, a camera under the screen, a finger print under the screen, a four-curved surface, a folding mobile phone, etc. into their own mobile phones, the realization of these technologies needs to make corresponding changes on the display screen, and OLEDs (Organic Light-Emitting diodes) are self-luminous, have good display effects, can be bent, and have good Light transmittance, so they are popular in the market.
With the development of the OLED display technology, curved screens are increasingly used. Curved screens have applications in these areas, from small-size applications in cell phones, displays to liquid crystal televisions. Compared with the mainstream flat screen display device, the curved surface display adopting the OLED technology has smaller thickness and lower power consumption. For large-size curved-surface televisions, the surrounding type impression can be better provided, so that the pictures have deeper depth, deeper viewing experience is provided for users, and a certain stereoscopic visual effect is achieved.
The four curved surfaces are displayed by bending four side surfaces, the bending angle can reach 90 degrees, and along with the technical change, the highest bending angle can reach 180 degrees, but a series of technical difficulties can be brought along, such as the side screen glass is easy to be damaged when the mobile phone falls, the stress at the edge and the corner is increased, and the like.
Disclosure of Invention
The invention aims to provide a display panel and a display device, and aims to solve the problems of large curved surface stress, weak pressure resistance and the like of a curved surface screen in the prior art.
To achieve the above object, the present invention provides a display panel having a planar area and a curved area surrounding the planar area. The display panel further comprises a plurality of pixel units and connecting lines. The pixel units are arranged in the plane area and the curved area. The connecting line is positioned between two adjacent pixel units and comprises a first metal line and a second metal line. The first metal wire is arranged in the plane area and/or the curved area and is of a linear structure. The second metal wire is arranged in the curved surface area and is of an extensible structure.
Four adjacent second metal wires and four pixel units form a buffer area in a surrounding mode, and each buffer area is provided with a micropore which penetrates through the display panel.
Further, the planar area is rectangular. The curved surface area comprises four first bending areas and four second bending areas. The first bending area is connected with four sides of the rectangular plane area. The second bending area is connected with four vertexes of the rectangular plane area and is simultaneously connected with two adjacent first bending areas.
Furthermore, the connecting line in the first bending region is the first metal line or the second metal line. The connecting line in the second bending area is the second metal line.
Further, the extendable structure may be a curved structure or a broken line structure.
Further, the pixel unit is a diamond. When the connecting line between two adjacent pixel units is the first metal line, the first metal line is connected from one side of one diamond-shaped pixel unit to one side of the other diamond-shaped pixel unit. When the connecting line between two adjacent pixel units is the second metal line, the second metal line is connected from one vertex of one diamond-shaped pixel unit to one vertex of the other diamond-shaped pixel unit.
Furthermore, in the planar area, the pixel units are arranged in an array along a first direction and a second direction which are vertically intersected, and four sides of the rhombic pixel units are respectively parallel to the first direction and the second direction.
Further, in the curved surface region, the pixel units are arranged in an array or in a staggered manner along a first direction and a second direction which are vertically intersected. When the pixel units are arranged in an array, four sides of the rhombic pixel units are respectively parallel to the first direction and the second direction. When the pixel units are arranged in a staggered mode, two diagonal lines of the rhombic pixel units are parallel to the first direction and the second direction respectively.
Furthermore, each pixel unit is provided with a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the red sub-pixel and the green sub-pixel are arranged on one side of the blue sub-pixel in parallel.
Furthermore, the display panel further comprises an array substrate, a light emitting layer, an encapsulation layer, a polarizer and a cover plate. The array substrate is provided with the connecting lines. The light emitting layer is arranged on the array substrate and is connected with the connecting wire through the pixel electrode. The pixel units are distributed in the light emitting layer. The packaging layer is arranged on one surface of the array substrate and covers the pixel units. The polaroid is arranged on one surface of the packaging layer, which is far away from the array substrate. The cover plate is arranged on one surface of the polaroid, which is far away from the packaging layer.
Further, the invention also provides a display device, and the display device comprises the display panel.
The invention has the advantages that: according to the display panel and the display device, the connecting line in the curved surface area adopts the extensible structure, so that the stress generated when the connecting line is bent is reduced. And, it has still set up the micropore between the pixel unit, releases partial bending stress through the micropore, promotes the shock resistance ability of panel to improve display panel's life.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 perspective view of a display device in embodiments 1 to 3 of the present invention;
FIG. 2 is a top view of a display panel according to embodiments 1-3 of the present invention;
FIG. 3 is a schematic structural diagram of a pixel unit in embodiments 1-3 of the present invention;
fig. 4 is a schematic view of a connection structure between a pixel unit and a first metal line in embodiments 1-3 of the present invention;
fig. 5 is a schematic view of a connection structure between a pixel unit and a second metal line in embodiments 1 and 3 of the present invention;
FIG. 6 is a schematic view of a layered structure of a display panel according to embodiments 1 to 3 of the present invention;
fig. 7 is a schematic view of a connection structure between a pixel unit and a second metal line in embodiment 2 of the present invention.
The components in the figures are represented as follows:
a display device 1; a display panel 10;
a planar area 11; a curved surface region 12;
a first bending zone 12A; a second bending region 12B;
a first direction X; a second direction Y;
a pixel unit 20; a diagonal line 21;
a red sub-pixel R; a green sub-pixel G;
a blue subpixel B; a connecting line 30;
a first metal line 31; a second metal line 32;
a buffer 33; micro-holes 40;
an array substrate 51; a thin film transistor 51A;
the pixel electrode 52; a light-emitting layer 53;
an encapsulation layer 54; a polarizer 55;
an optical glue 56; and a cover plate 57.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, which are included to demonstrate that the invention can be practiced, and to provide those skilled in the art with a complete description of the invention so that the technical content thereof will be more clear and readily understood. The present invention may be embodied in many different forms of embodiments and should not be construed as limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
Furthermore, the following description of the various embodiments of the invention refers to the accompanying drawings that illustrate specific embodiments of the invention, by which the invention may be practiced. Directional phrases used in this disclosure, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
When certain components are described as being "on" another component, the components can be directly on the other component; there may also be an intermediate member disposed on the intermediate member and the intermediate member disposed on the other member. When an element is referred to as being "mounted to" or "connected to" another element, they may be directly "mounted to" or "connected to" the other element or indirectly "mounted to" or "connected to" the other element through an intermediate element.
Example 1
In the embodiment of the present invention, a display device 1 is provided, as shown in fig. 1, a display surface of the display device 1 is curved and extends to a side edge thereof, so that the side edge thereof also has a display function. The display device 1 has a display panel 10, and the display panel 10 is used for providing a display screen for the display device 1. The display device 1 may be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer, and the like.
As shown in fig. 2, the display panel 10 has a planar area 11 and is a curved area 12 surrounding the planar area 11. The curved surface region 12 is divided into a first bending region 12A and a second bending region 12B according to the shape, and the first bending region 12A and the second bending region 12B are four in number. The planar area 11 is rectangular, and the four first bending areas 12A are respectively connected with four sides of the rectangular planar area 11. The four second bending areas 12B are fan-shaped and are respectively connected with four vertexes of the rectangular plane area 11, and two straight lines of each fan-shaped second bending area 12B are respectively connected with the adjacent first bending area 12A.
The display panel 10 further has a plurality of pixel units 20, and the pixel units 20 are distributed in the planar area 11 and the curved area 12. Each pixel unit 20 is diamond-shaped and can emit color light independently, as shown in fig. 3, each pixel unit 20 has a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, and the red sub-pixel R and the green sub-pixel G are arranged on one side of the blue sub-pixel B in parallel. Since the blue sub-pixel B has low light-emitting efficiency and short light-emitting life, the areas of the red sub-pixel R and the green sub-pixel G are both smaller than the area of the blue sub-pixel B, thereby improving the service life of the panel. The red sub-pixel R, the green sub-pixel G and the blue sub-pixel B can emit red, green and blue light respectively, and the light of the three colors can be combined to make each pixel unit 20 emit light of different colors, thereby realizing the display of a color picture.
A connection line 30 is connected between adjacent pixel units 20, and the connection line 30 provides electrical energy to the sub-pixel in each pixel unit 20, and the sub-pixel in the pixel unit 20 can convert the electrical energy into light energy. The connection line 30 is divided into a first metal line 31 and a second metal line 32. The first metal line 31 is a straight line structure, and the second metal line 32 is an extendable structure.
The display panel 10 has a first direction X and a second direction Y, and the first direction X and the second direction Y are perpendicular to each other.
In the planar area 11, as shown in fig. 4, the diamond-shaped pixel units 20 are arranged in an array along a first direction X and a second direction Y, and two of the four sides of each diamond-shaped pixel unit 20 are parallel to the first direction X, and the remaining two are parallel to the second direction Y. In the planar area 11, the connection line 30 between two adjacent pixel units 20 is a first metal line 31, and the first metal line 31 is connected from a midpoint position of one side of one pixel unit 20 to a midpoint position of one side of the other pixel unit 20.
The pixel units 20 in the first bending region 12A are arranged in the same order as the planar region 11, and the connection line 30 between two adjacent pixel units 20 is also the first metal line 31.
In the second bending region 12B, as shown in fig. 5, the diamond-shaped pixel units 20 are also arranged in an array along the first direction X and the second direction Y, but two diagonal lines 21 in each diamond-shaped pixel unit 20 are parallel to the first direction X and the second direction Y, respectively. In the second bending region 12B, the connection line 30 between two adjacent pixel units 20 is a second metal line 32, and the stretchable structure adopted by the second metal line 32 is a curved structure. The second metal line 32 is connected from a vertex of one diamond-shaped pixel unit 20 to a vertex of another diamond-shaped pixel unit 20. When the second bending region 12B is bent, the second metal wire 32 can be straightened or extended for a certain distance, so as to reduce the stress generated by the bending operation on the connecting wire 30, prevent the connecting wire 30 from breaking and generating short circuit, and improve the stability of the panel.
As shown in fig. 5, in the second bending region 12B, four adjacent pixel units 20 and four second metal lines 32 between the four pixel units 20 enclose a buffer region 33. Each buffer area 33 has a micro-hole 40 therein, the micro-hole 40 penetrates through the display panel 10, and the penetrating structure thereof is as shown in fig. 6, and each micro-hole 40 avoids the structure of the thin film transistor 51A in the display panel 10, so as to prevent short circuit. The micro-holes 40 can relieve and release part of the stress generated when the second bending region 12B is bent, and improve the impact resistance of the curved region 12.
As shown in fig. 6, the display panel 10 has an array substrate 51, a light emitting layer 53, an encapsulation layer, a polarizer 55 and a cover 57. The array substrate 51 has a plurality of thin film transistors 51A therein for controlling the light emission of the light emitting layer 53. The light emitting layer 53 is disposed on a surface of the array substrate 51, and the pixel units 20 are distributed in the light emitting layer 53. The light-emitting layer 53 is electrically connected to the connection line 30 in the thin film transistor 51A through the pixel electrode 52. The encapsulation layer is disposed on a surface of the array substrate 51 close to the light-emitting layer 53 and covers the light-emitting layer 53. The encapsulation layer is used to protect the sub-pixels in the light emitting layer 53 and the thin film transistors 51A in the array substrate 51 from water and oxygen intrusion corrosion. The packaging layer can be prepared by adopting a thin film packaging technology, and the adhesive force between the film layers is improved while the barrier effect is enhanced through a sandwich type laminated structure of organic materials and inorganic materials. The polarizer 55 is disposed on a surface of the encapsulation layer away from the array substrate 51, and is used for modulating and filtering light, so as to modulate light emitted from the light emitting layer 53 into light visible to human eyes. The cover plate 57 is adhered to a surface of the polarizer 55 away from the encapsulation layer by a layer of optical glue 56, which is used to protect the whole structure of the display panel 10.
In the display panel 10 and the display device 1 provided in the embodiments of the present invention, the connection line 30 in the curved surface region 12 adopts an extendable structure, so as to reduce stress generated when the connection line 30 is bent, and improve stability of the display panel 10. In addition, the micropores 40 are also arranged between the pixel units 20, and the micropores 40 release part of bending stress, so that the impact resistance of the panel is further improved, and the service life of the display panel 10 is prolonged.
Example 2
In the embodiment of the present invention, a display device 1 is provided, as shown in fig. 1, a display surface of the display device 1 is curved and extends to a side edge thereof, so that the side edge thereof also has a display function. The display device 1 has a display panel 10, and the display panel 10 is used for providing a display screen for the display device 1. The display device 1 may be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer, and the like.
As shown in fig. 2, the display panel 10 has a planar area 11 and is a curved area 12 surrounding the planar area 11. The curved surface region 12 is divided into a first bending region 12A and a second bending region 12B according to the shape, and the first bending region 12A and the second bending region 12B are four in number. The planar area 11 is rectangular, and the four first bending areas 12A are respectively connected with four sides of the rectangular planar area 11. The four second bending areas 12B are fan-shaped and are respectively connected with four vertexes of the rectangular plane area 11, and two straight lines of each fan-shaped second bending area 12B are respectively connected with the adjacent first bending area 12A.
The display panel 10 further has a plurality of pixel units 20, and the pixel units 20 are distributed in the planar area 11 and the curved area 12. Each pixel unit 20 is diamond-shaped and can emit color light independently, as shown in fig. 3, each pixel unit 20 has a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, and the red sub-pixel R and the green sub-pixel G are arranged on one side of the blue sub-pixel B in parallel. Since the blue sub-pixel B has low light-emitting efficiency and short light-emitting life, the areas of the red sub-pixel R and the green sub-pixel G are both smaller than the area of the blue sub-pixel B, thereby improving the service life of the panel. The red sub-pixel R, the green sub-pixel G and the blue sub-pixel B can emit red, green and blue light respectively, and the light of the three colors can be combined to make each pixel unit 20 emit light of different colors, thereby realizing the display of a color picture.
A connection line 30 is connected between adjacent pixel units 20, and the connection line 30 provides electrical energy to the sub-pixel in each pixel unit 20, and the sub-pixel in the pixel unit 20 can convert the electrical energy into light energy. The connection line 30 is divided into a first metal line 31 and a second metal line 32. The first metal line 31 is a straight line structure, and the second metal line 32 is an extendable structure.
The display panel 10 has a first direction X and a second direction Y, and the first direction X and the second direction Y are perpendicular to each other.
In the planar area 11, as shown in fig. 4, the diamond-shaped pixel cells 20 are arranged in an array along a first direction X and a second direction Y, and two of four sides of each diamond-shaped pixel cell 20 are parallel to the first direction X, and the remaining two sides are parallel to the second direction Y. In the planar area 11, the connection line 30 between two adjacent pixel units 20 is a first metal line 31, and the first metal line 31 is connected from a midpoint position of one side of one pixel unit 20 to a midpoint position of one side of the other pixel unit 20.
The pixel units 20 in the first bending region 12A are arranged in the same order as the planar region 11, and the connection line 30 between two adjacent pixel units 20 is also the first metal line 31.
In the second bending region 12B, as shown in fig. 7, the diamond-shaped pixel units 20 are arranged along the first direction X and the second direction Y in a staggered manner, two of the four sides of each diamond-shaped pixel unit 20 are parallel to the first direction X, and the remaining two sides are parallel to the second direction Y. In the second bending region 12B, the connection line 30 between two adjacent pixel units 20 is a second metal line 32, and the stretchable structure adopted by the second metal line 32 is a broken line structure. The second metal line 32 is connected from a vertex of one diamond-shaped pixel unit 20 to a vertex of another diamond-shaped pixel unit 20. When the second bending region 12B is bent, the second metal wire 32 can be straightened or extended for a certain distance, so as to reduce the stress generated by the bending operation on the connecting wire 30, prevent the connecting wire 30 from breaking and generating short circuit, and improve the stability of the panel.
As shown in fig. 7, in the second bending region 12B, four adjacent pixel units 20 and four second metal lines 32 between the four pixel units 20 enclose a buffer region 33. Each buffer area 33 has a micro-hole 40 therein, the micro-hole 40 penetrates through the display panel 10, and the penetrating structure thereof is as shown in fig. 6, and each micro-hole 40 avoids the structure of the thin film transistor 51A in the display panel 10, so as to prevent short circuit. The micro-holes 40 can relieve and release part of the stress generated when the second bending region 12B is bent, and improve the impact resistance of the curved region 12.
As shown in fig. 6, the display panel 10 has an array substrate 51, a light emitting layer 53, an encapsulation layer, a polarizer 55 and a cover 57. The array substrate 51 has a plurality of thin film transistors 51A therein for controlling the light emission of the light emitting layer 53. The light emitting layer 53 is disposed on a surface of the array substrate 51, and the pixel units 20 are distributed in the light emitting layer 53. The light-emitting layer 53 is electrically connected to the connection line 30 in the thin film transistor 51A through the pixel electrode 52. The encapsulation layer is disposed on a surface of the array substrate 51 close to the light-emitting layer 53 and covers the light-emitting layer 53. The encapsulation layer is used to protect the sub-pixels in the light emitting layer 53 and the thin film transistors 51A in the array substrate 51 from water and oxygen intrusion corrosion. The packaging layer can be prepared by adopting a thin film packaging technology, and the adhesive force between the film layers is improved while the barrier effect is enhanced through a sandwich type laminated structure of organic materials and inorganic materials. The polarizer 55 is disposed on a surface of the encapsulation layer away from the array substrate 51, and is used for modulating and filtering light, so as to modulate light emitted from the light emitting layer 53 into light visible to human eyes. The cover plate 57 is adhered to a surface of the polarizer 55 away from the encapsulation layer by a layer of optical glue 56, which is used to protect the whole structure of the display panel 10.
In the display panel 10 and the display device 1 provided in the embodiments of the present invention, the connection line 30 in the curved surface region 12 adopts an extendable structure, so as to reduce stress generated when the connection line 30 is bent, and improve stability of the display panel 10. In addition, the micropores 40 are also arranged between the pixel units 20, and the micropores 40 release part of bending stress, so that the impact resistance of the panel is further improved, and the service life of the display panel 10 is prolonged.
Example 3
In the embodiment of the present invention, a display device 1 is provided, as shown in fig. 1, a display surface of the display device 1 is curved and extends to a side edge thereof, so that the side edge thereof also has a display function. The display device 1 has a display panel 10, and the display panel 10 is used for providing a display screen for the display device 1. The display device 1 may be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer, and the like.
As shown in fig. 2, the display panel 10 has a planar area 11 and is a curved area 12 surrounding the planar area 11. The curved surface region 12 is divided into a first bending region 12A and a second bending region 12B according to the shape, and the first bending region 12A and the second bending region 12B are four in number. The planar area 11 is rectangular, and the four first bending areas 12A are respectively connected with four sides of the rectangular planar area 11. The four second bending areas 12B are fan-shaped and are respectively connected with four vertexes of the rectangular plane area 11, and two straight lines of each fan-shaped second bending area 12B are respectively connected with the adjacent first bending area 12A.
The display panel 10 further has a plurality of pixel units 20, and the pixel units 20 are distributed in the planar area 11 and the curved area 12. Each pixel unit 20 is diamond-shaped and can emit color light independently, as shown in fig. 3, each pixel unit 20 has a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, and the red sub-pixel R and the green sub-pixel G are arranged on one side of the blue sub-pixel B in parallel. Since the blue sub-pixel B has low light-emitting efficiency and short light-emitting life, the areas of the red sub-pixel R and the green sub-pixel G are both smaller than the area of the blue sub-pixel B, thereby improving the service life of the panel. The red sub-pixel R, the green sub-pixel G and the blue sub-pixel B can emit red, green and blue light respectively, and the light of the three colors can be combined to make each pixel unit 20 emit light of different colors, thereby realizing the display of a color picture.
A connection line 30 is connected between adjacent pixel units 20, and the connection line 30 provides electrical energy to the sub-pixel in each pixel unit 20, and the sub-pixel in the pixel unit 20 can convert the electrical energy into light energy. The connection line 30 is divided into a first metal line 31 and a second metal line 32. The first metal line 31 is a straight line structure, and the second metal line 32 is an extendable structure.
The display panel 10 has a first direction X and a second direction Y, and the first direction X and the second direction Y are perpendicular to each other.
In the planar area 11, as shown in fig. 4, the diamond-shaped pixel units 20 are arranged in an array along a first direction X and a second direction Y, and two of the four sides of each diamond-shaped pixel unit 20 are parallel to the first direction X, and the remaining two are parallel to the second direction Y. In the planar area 11, the connection line 30 between two adjacent pixel units 20 is a first metal line 31, and the first metal line 31 is connected from a midpoint position of one side of one pixel unit 20 to a midpoint position of one side of the other pixel unit 20.
In the first bending region 12A and the second bending region 12B, as shown in fig. 5, the diamond-shaped pixel units 20 are also arranged in an array along the first direction X and the second direction Y, but two diagonal lines 21 in each diamond-shaped pixel unit 20 are parallel to the first direction X and the second direction Y, respectively. In the second bending region 12B, the connection line 30 between two adjacent pixel units 20 is a second metal line 32, and the stretchable structure adopted by the second metal line 32 is a curved structure. The second metal line 32 is connected from a vertex of one diamond-shaped pixel unit 20 to a vertex of another diamond-shaped pixel unit 20. When the first bending region 12A and the second bending region 12B are bent, the second metal wire 32 can be straightened or extended for a distance, so as to reduce the stress generated by the bending operation on the connecting wire 30, prevent the connecting wire 30 from breaking and generating short circuit, and improve the stability of the panel.
As shown in fig. 5, in the first bending region 12A and the second bending region 12B, four adjacent pixel units 20 and four second metal lines 32 between the four pixel units 20 enclose a buffer region 33. Each buffer area 33 has a micro-hole 40 therein, the micro-hole 40 penetrates through the display panel 10, and the penetrating structure thereof is as shown in fig. 6, and each micro-hole 40 avoids the structure of the thin film transistor 51A in the display panel 10, so as to prevent short circuit. The micro-holes 40 can relieve and release part of the stress generated when the second bending region 12B is bent, and improve the impact resistance of the curved region 12.
As shown in fig. 6, the display panel 10 has an array substrate 51, a light emitting layer 53, an encapsulation layer, a polarizer 55 and a cover 57. The array substrate 51 has a plurality of thin film transistors 51A therein for controlling the light emission of the light emitting layer 53. The light emitting layer 53 is disposed on a surface of the array substrate 51, and the pixel units 20 are distributed in the light emitting layer 53. The light-emitting layer 53 is electrically connected to the connection line 30 in the thin film transistor 51A through the pixel electrode 52. The encapsulation layer is disposed on a surface of the array substrate 51 close to the light-emitting layer 53 and covers the light-emitting layer 53. The encapsulation layer is used to protect the sub-pixels in the light emitting layer 53 and the thin film transistors 51A in the array substrate 51 from water and oxygen intrusion corrosion. The packaging layer can be prepared by adopting a thin film packaging technology, and the adhesive force between the film layers is improved while the barrier effect is enhanced through a sandwich type laminated structure of organic materials and inorganic materials. The polarizer 55 is disposed on a surface of the encapsulation layer away from the array substrate 51, and is used for modulating and filtering light, so as to modulate light emitted from the light emitting layer 53 into light visible to human eyes. The cover plate 57 is adhered to a surface of the polarizer 55 away from the encapsulation layer by a layer of optical glue 56, which is used to protect the whole structure of the display panel 10.
In the display panel 10 and the display device 1 provided in the embodiments of the present invention, the connection line 30 in the curved surface region 12 adopts an extendable structure, so as to reduce stress generated when the connection line 30 is bent, and improve stability of the display panel 10. In addition, the micropores 40 are also arranged between the pixel units 20, and the micropores 40 release part of bending stress, so that the impact resistance of the panel is further improved, and the service life of the display panel 10 is prolonged.
In the embodiment of the present invention, the extendable structure of the second metal line 32 in the curved surface region 12 is a curved line structure, but in other embodiments of the present invention, a broken line structure as shown in fig. 7 may be adopted, and the layered structure thereof is similar to that in the present invention, and therefore, will not be described herein in too much detail. 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.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A display panel having a planar area and a curved area surrounding the planar area;
the display panel includes:
the pixel units are arranged in the plane area and the curved surface area;
a connecting line is arranged between two adjacent pixel units, and the connecting line comprises:
the first metal wire is arranged in the plane area and/or the curved surface area and is of a linear structure;
the second metal wire is arranged in the curved surface area and is of an extensible structure;
four adjacent second metal wires and four pixel units form a buffer area in a surrounding mode, and each buffer area is provided with a micropore which penetrates through the display panel.
2. The display panel according to claim 1, wherein the planar area is rectangular;
the curved surface area includes:
the four first bending areas are connected with four sides of the rectangular plane area; and
and the four second bending areas are connected with the four vertexes of the rectangular plane area and are simultaneously connected with the two adjacent first bending areas.
3. The display panel of claim 2,
the connecting line in the first bending area is the first metal line or the second metal line;
the connecting line in the second bending area is the second metal line.
4. The display panel of claim 1, wherein the stretchable structure is a curved structure or a broken line structure.
5. The display panel of claim 1, wherein the pixel cells are diamond shaped;
when the connecting line between two adjacent pixel units is the first metal line, the first metal line is connected from one side of one rhombic pixel unit to one side of the other rhombic pixel unit;
when the connecting line between two adjacent pixel units is the second metal line, the second metal line is connected from one vertex of one diamond-shaped pixel unit to one vertex of the other diamond-shaped pixel unit.
6. The display panel according to claim 5, wherein in the planar area, the pixel units are arranged in an array along a first direction and a second direction which intersect perpendicularly, and four sides of the diamond-shaped pixel unit are parallel to the first direction and the second direction, respectively;
7. the display panel according to claim 5, wherein the pixel units are arranged in an array or a staggered arrangement along a first direction and a second direction which intersect perpendicularly in the curved region;
when the pixel units are arranged in an array, two diagonal lines of the rhombic pixel units are respectively parallel to the first direction and the second direction;
when the pixel units are arranged in a staggered mode, four sides of the rhombic pixel units are parallel to the first direction and the second direction respectively.
8. The display panel of claim 1, wherein each pixel unit has a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the red sub-pixel and the green sub-pixel are disposed on one side of the blue sub-pixel.
9. The display panel of claim 1, further comprising:
the array substrate is provided with the connecting lines;
the light-emitting layer is arranged on the array substrate and is connected with the connecting wire through the pixel electrode;
the pixel units are distributed in the light-emitting layer;
the packaging layer is arranged on one surface of the array substrate and covers the pixel units;
the polaroid is arranged on one surface of the packaging layer, which is far away from the array substrate;
the cover plate is arranged on one surface of the polaroid, which is far away from the packaging layer.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202010941779.2A CN112071881B (en) | 2020-09-09 | 2020-09-09 | Display panel and display device |
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| CN112071881B (en) | 2022-04-26 |
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