Display panel and display device

Abstract

The display panel comprises a substrate, a pixel defining layer, a packaging layer, a touch control layer and an insulating layer, the pixel defining layer is arranged on the substrate, a plurality of rectangular light-emitting units are embedded in the pixel defining layer, the light-emitting units are distributed in N rows and M columns, N and M are integers larger than 1, and the insulating layer is arranged on the substrate. The packaging layer is arranged on the side, away from the substrate, of the pixel defining layer, a plurality of rectangular touch openings are formed in the touch layer, the length and the width of the touch openings are larger than those of the light-emitting units respectively, and the side walls of the touch openings are all inclined planes; the length and width of the side, close to the packaging layer, of the touch opening are smaller than those of the side, away from the packaging layer, of the touch opening respectively, and the length and width of the side, close to the packaging layer, of the touch opening are larger than those of the light-emitting units respectively. The inclination degree of the side wall of the center of the display panel is large, more light rays can be emitted towards a large visual angle, shielding is reduced, and therefore the brightness uniformity is improved.

Description

Technical Field

[0001] The utility model relates to a display panel and a display device, belonging to the technical field of liquid crystal display. Background Art

[0002] The display panel includes a substrate, a plurality of light-emitting units arranged on the substrate, a pixel definition layer, an encapsulation layer and a touch layer. Figure 1 As shown, the touch layer has multiple touch openings (i.e., the touch layer is a grid-like mesh), the hole walls of the touch openings are perpendicular to the packaging layer, that is, the touch openings are straight holes, and the thickness of the touch layer outside the touch openings is uniform. For a display panel with this structure, at a wide viewing angle, the touch layer in the center of the display panel blocks light more seriously than the touch layer at the edge of the display panel. Summary of the Invention

[0003] The purpose of the present utility model is to provide a display panel and a display device to solve the technical defects of the prior art in that, at a wide viewing angle, the touch layer in the center of the display panel blocks light more seriously than the touch layer at the edge of the display panel, resulting in low light utilization and poor brightness uniformity.

[0004] To solve the above problems, the technical solution adopted by the present invention is: a display panel, including a substrate, a pixel definition layer, an encapsulation layer, a touch layer and an insulating layer, the pixel definition layer is arranged on the substrate, and a plurality of rectangular light-emitting units are embedded in the pixel definition layer, and the plurality of light-emitting units are distributed in N rows and M columns, where N and M are both integers greater than 1, the encapsulation layer is arranged on the side of the pixel definition layer away from the substrate, and is made of a light-transmitting material, a plurality of rectangular touch openings are opened on the touch layer, the touch openings pass through both sides of the touch layer, the length and width of the touch openings are respectively greater than the length and width of the light-emitting units, and the orthographic projection of the light-emitting units on the substrate is completely located within the orthographic projection of the touch openings on the liner, the insulating layer is used to fix the touch layer on the encapsulation layer, the side walls of the touch openings are all inclined surfaces, the length and width of the touch openings close to the encapsulation layer are respectively smaller than the length and width of the side away from the encapsulation layer, and the length and width of the touch openings close to the encapsulation layer are respectively greater than the length and width of the light-emitting units.

[0005] As a further improvement of the present invention, the inclination angle of the sidewall of the touch opening decreases gradually from the center to the edge of the display panel.

[0006] As a further improvement of the present invention, the difference in the inclination angles of the side walls of two adjacent touch openings from the center to the edge of the display panel is greater than 2°.

[0007] As a further improvement of the present invention, the thickness of the touch layer increases sequentially from the center to the edge of the display panel.

[0008] As a further improvement of the present invention, the thickness ratio of the touch layer between two adjacent touch openings from the edge to the center of the display panel is greater than 1.1.

[0009] The utility model provides a display device, which adopts the above-mentioned display panel.

[0010] In summary, the beneficial effects of the present invention are: 1. The present invention sets the side wall of the display panel at a large inclination, which can help more light to be emitted toward a large viewing angle and reduce obstruction, thereby improving the consistency of the light obstruction of the center touch layer and the edge touch layer to their respective corresponding light-emitting units, and improving the brightness uniformity.

[0011] 2. The side wall of the touch layer near the center of the display panel of the present invention is shorter, which can reduce the obstruction of light at a wide viewing angle.

[0012] 3. In the present invention, the difference in the inclination angle of the side walls of two adjacent touch openings is greater than 2°, ensuring that the difference in the degree of inclination of the side walls of the two adjacent touch openings is large, which is more conducive to the emission of light at a wide viewing angle.

[0013] 4. In the present invention, the thickness ratio of the touch layer between two adjacent touch openings is greater than 1.1, and the distance difference between the top of the sidewall of the touch opening and the substrate is relatively large, which further facilitates the light to be emitted at a wide viewing angle.

[0014] 5. The display panel of the display device of the present invention has high light utilization rate and good brightness uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of a display panel in the prior art.

[0016] Figure 2 It is a schematic diagram of the projection of the touch layer and the light-emitting unit on the substrate.

[0017] Figure 3 It is a cross-sectional view of the display panel of the present invention.

[0018] Among them: 1. substrate; 2. pixel definition layer; 3. light-emitting unit; 4. encapsulation layer; 5. touch layer; 6. touch opening; 7. insulation layer; 8. bevel. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Example 1

[0020] like Figure 3The display panel shown includes a substrate 1, a pixel definition layer 2, an encapsulation layer 4, a touch layer 5 and an insulating layer 7. The substrate 1 in this embodiment is an opaque plate-like structure. The pixel definition layer 2 is arranged on the substrate 1. A plurality of rectangular light-emitting units 3 are embedded in the pixel definition layer 2. The plurality of light-emitting units 3 are distributed in N rows and M columns, where N and M are integers greater than 1. In this embodiment, N×M rectangular through holes are opened on the pixel definition layer 2 and pass through both sides thereof. The light-emitting units 3 are embedded in the through holes. The encapsulation layer 4 in this embodiment is arranged on a side of the pixel definition layer 2 away from the substrate 1 and is made of a light-transmitting material. In this embodiment, a plurality of rectangular touch openings 6 are opened on the touch layer 5. The touch openings 6 pass through both sides of the touch layer 5 for light emitted by the light-emitting units 3 to pass through. The length and width of the touch openings 6 are respectively greater than the length and width of the light-emitting units 3, and the orthographic projection of the light-emitting units 3 on the substrate 1 is completely located within the orthographic projection of the touch openings 6 on the backing plate to prevent the touch layer 5 from directly blocking the light emitted by the light-emitting units 3. Figure 2 As shown, the insulating layer 7 in this embodiment covers the touch layer 5 to fix the touch layer 5 on the encapsulation layer 4, and the insulating layer 7 fills the touch opening 6. The insulating layer 7 is made of a material with good photopic properties. In this embodiment, the side walls of the touch opening 6 are all inclined surfaces 8. The length and width of the touch opening 6 close to the encapsulation layer 4 are respectively smaller than the length and width of the side away from the encapsulation layer 4, and the length and width of the touch opening 6 close to the encapsulation layer 4 are respectively larger than the length and width of the light-emitting unit 3.

[0021] In this embodiment, the sidewall inclination angle of the touch opening 6 decreases from the center to the edge of the display panel, and the difference in the sidewall inclination angle between two adjacent touch openings 6 is greater than 2°. In this embodiment, the thickness of the touch layer 5 increases from the center to the edge of the display panel, and the thickness ratio of the touch layer 5 between two adjacent touch openings 6 is greater than 1.1 from the edge to the center of the display panel. The remaining structure of this embodiment is the same as that of the prior art and will not be described in detail in this embodiment. Example 2

[0022] This embodiment is a display device, which adopts the display panel of Example 1. The other structures of the display device are all existing technologies and will not be described in detail in this utility model.

[0023] Any portion of the above description not specifically described herein is prior art or can be implemented using prior art. Furthermore, the specific implementation examples described in this utility model are merely preferred implementation examples of this utility model and are not intended to limit the scope of this utility model. In other words, any equivalent variations and modifications made within the scope of this utility model should be considered within the technical scope of this utility model.

Claims

1. A display panel comprising substrate (1); A pixel definition layer (2), the pixel definition layer (2) is arranged on the substrate (1), and a plurality of rectangular light-emitting units (3) are embedded in the pixel definition layer (2), and the plurality of light-emitting units (3) are distributed in N rows and M columns, wherein N and M are both integers greater than 1; An encapsulation layer (4), the encapsulation layer (4) being arranged on a side of the pixel definition layer (2) away from the substrate (1) and being made of a light-transmitting material; A touch layer (5), wherein a plurality of rectangular touch openings (6) are provided on the touch layer (5), the touch openings (6) pass through both sides of the touch layer (5), the length and width of the touch openings (6) are respectively greater than the length and width of the light-emitting unit (3), and the orthographic projection of the light-emitting unit (3) on the substrate (1) is completely located within the orthographic projection of the touch openings (6) on the liner; an insulating layer (7), the insulating layer (7) being used to fix the touch layer (5) on the encapsulation layer (4); Its characteristics are: The side walls of the touch opening (6) are all inclined surfaces (8), the length and width of the touch opening (6) on the side close to the encapsulation layer (4) are respectively smaller than the length and width of the side away from the encapsulation layer (4), and the length and width of the touch opening (6) on the side close to the encapsulation layer (4) are respectively larger than the length and width of the light-emitting unit (3).

2. The display panel according to claim 1, wherein: From the center to the edge of the display panel, the inclination angle of the side wall of the touch opening (6) decreases successively.

3. The display panel according to claim 2, wherein: From the center to the edge of the display panel, the difference in the inclination angle of the side walls of two adjacent touch openings (6) is greater than 2°.

4. The display panel according to claim 1, wherein: The thickness of the touch layer (5) increases sequentially from the center to the edge of the display panel.

5. The display panel according to claim 4, characterized in that : From the edge to the center of the display panel, the thickness ratio of the touch layer (5) between two adjacent touch openings (6) is greater than 1.

1.

6. A display device, characterized in that: A display panel according to any one of claims 1 to 5 is used.

Images