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Display panel and display device

A display panel and top surface technology, which is applied to semiconductor devices, electrical components, circuits, etc., can solve the problems of low contrast of OLED display panels, and achieve the effect of improving contrast and reducing outgoing light.

Active Publication Date: 2019-09-20
GUANGZHOU GOVISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a display panel and a display device to overcome the problem of low contrast of OLED display panels in the prior art

Method used

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  • Display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is a schematic structural diagram of the display panel in Embodiment 1 of the present invention. Please refer to figure 1 This embodiment provides a display panel, including a base substrate 100 and a light emitting layer 200 , a polarizer 300 , and a polarizer supporting layer 400 sequentially stacked on the base substrate 100 . The top surface of the polarizer support layer 400 away from the polarizer 300 is provided with a first roughness portion 410 for changing the surface roughness of the top surface.

[0034] Specifically, the display panel can be used in display devices such as mobile phones, tablet computers, and televisions. The display panel may be an organic light emitting display panel, or a liquid crystal display panel, or the like.

[0035] The display panel may include a base substrate 100; the base substrate 100 may be a flexible substrate that can be bent under the action of force, or a glass substrate that is not easily deformed.

[00...

Embodiment 2

[0058] figure 2 It is a schematic structural diagram of the display panel in Embodiment 2 of the present invention. Please refer to figure 2 The second embodiment is improved on the basis of the first embodiment, and other structures can refer to the first embodiment. The bottom surface of the polarizer supporting layer 400 near the polarizer 300 is provided with a second roughness portion 420 for changing the surface roughness of the bottom surface.

[0059] There may be various structures of the second rough part 420 . The second rough part 420 can cause the bottom surface of the polarizer supporting layer 400 to have undulations, that is, the bottom surface is not a flat structure, thereby improving the surface roughness of the bottom surface.

[0060] When external ambient light is incident on the display panel, both the first rough portion 410 and the second rough portion 420 can diffusely reflect part of the external ambient light, thereby reducing the external ambie...

Embodiment 3

[0069] image 3 It is a schematic structural diagram of the display panel in Embodiment 3 of the present invention. Please refer to image 3 , this embodiment is an improvement made on the basis of Embodiment 1 and Embodiment 2. For other structures, reference may be made to Embodiment 1 and Embodiment 2, and details will not be repeated. The surface of the polarizer supporting layer 400 away from the light-emitting layer is also covered with a conductive electrostatic discharge layer 500 .

[0070] Specifically, the electrostatic release layer 500 may be formed of conductive materials such as semiconductor materials. Preferably, the electrostatic release layer 500 includes at least one of carbon nanotube layers, graphene layers, and nanographite sheet layers. The electrostatic discharge layer 500 may be a layer structure formed on the polarizer support layer 400 by inkjet, deposition, and the like. It may completely cover the polarizer supporting layer 400 .

[0071] It c...

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PUM

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Abstract

The invention provides a display panel and a display device. The display panel comprises a substrate and a light-emitting layer, a polaroid and a polaroid support layer, which are stacked up on the substrate in sequence. The top surface of the polaroid support layer deviating from the polaroid is provided with a first rough portion for changing surface roughness of the top surface. According to the display panel and the display device, when ambient light enters the display panel through the first rough portion, the first rough portion can make a part of the ambient light have diffuse reflection and cannot enter the display panel, thereby reducing the ambient light entering the display panel; and meanwhile, when the ambient light incident into the display panel is reflected by a metal layer in the light-emitting layer, the outgoing light also has diffuse reflection when passing through the first rough portion, thereby reducing the outgoing light and further improving contrast of the display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED) display panels have many advantages such as self-illumination, fast response, high brightness, bendability, and thinness, and are considered to be a new generation of mainstream display technology. [0003] The light-emitting layer of the OLED display panel includes a metal layer (for example, a cathode, etc.), and the metal layer has a high reflectivity to external ambient light, which will affect the display effect of the OLED. At present, it is generally adopted to arrange a polarizer on the light-emitting layer of the OLED display panel to reduce reflection and enhance the contrast of the screen display. [0004] However, when external ambient light enters the OLED display panel from the outside, it will be reflected by the metal layer of the OLED display panel to...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/12H10K50/85H10K50/856H10K50/86
Inventor 贾松霖曹二闯孙晨陈营营
Owner GUANGZHOU GOVISIONOX TECH CO LTD