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Preparation method for display substrate, display substrate, display panel and control method

A technology for display substrates and display panels, used in semiconductor/solid-state device manufacturing, electrical components, electro-solid devices, etc., can solve problems such as brightening, and achieve the effects of increasing transmittance, reducing power consumption, and increasing charge migration rate.

Pending Publication Date: 2019-11-29
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a method for preparing a display substrate, a display substrate, a display panel and a control method, so as to solve the problem that the current OLED display device is still bright when it is not displaying.

Method used

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  • Preparation method for display substrate, display substrate, display panel and control method
  • Preparation method for display substrate, display substrate, display panel and control method
  • Preparation method for display substrate, display substrate, display panel and control method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The display substrate in the present application includes: a substrate, a pixel definition layer located on the substrate, and a first electrode layer, an organic light-emitting layer, a second electrode layer, an electrochromic layer and a first electrode layer stacked on the substrate. three electrode layers.

[0037] Wherein, the first electrode layer is located on the substrate, the electrochromic layer is located between the second electrode layer and the third electrode layer, and between the second electrode layer and the third electrode layer Under the action of the transparent state and the dark state switching.

[0038] In a specific implementation, as an implementation, the first electrode layer, the organic light-emitting layer, the second electrode layer, the electrochromic layer and the third electrode layer can be formed on the entire surface of the pixel definition layer of the substrate, specifically including:

[0039] A substrate is provided.

[004...

Embodiment 2

[0074] see image 3 It is a schematic structural diagram of a display panel described in Embodiment 2 of the present application, specifically including: the display substrate described in Embodiment 1 and an encapsulation layer 301 encapsulated on the display substrate.

[0075] The encapsulation layer 301 is covered with a power supply film 302 for supplying power to the third electrode.

[0076] The power supply film is a pressure film or a solar film.

[0077] In practical applications, when the power supply film is a pressure film, the pressure film supplies power to the third electrode layer on the electrochromic layer by converting the external pressure into electrical energy. Since the electrochromic layer belongs to a bistable structure , when the OLED is not displaying, it is necessary to apply a forward voltage to the third electrode layer, so the required power consumption is not large.

[0078] When the power supply film is a solar film, the solar film converts ...

Embodiment 3

[0081] see Figure 4 It is a flowchart of a method for preparing a display substrate described in Embodiment 3 of the present application, including the following steps:

[0082] Step 401: Provide a substrate.

[0083] Step 402 : forming a pixel definition layer, and stacked first electrode layer, organic light emitting layer, second electrode layer, electrochromic layer and third electrode layer on the substrate.

[0084] Wherein, the first electrode layer is located on the substrate, the electrochromic layer is located between the second electrode layer and the third electrode layer, and between the second electrode layer and the third electrode layer Under the action of the transparent state and the dark state switching.

[0085] As one of the implementation manners, step 402 includes the following steps:

[0086] Specifically, a pixel definition layer is formed on the substrate, and a black light-absorbing dye is doped into the pixel definition layer, and the pixel defi...

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Abstract

The invention provides a preparation method for a display substrate, the display substrate, a display panel and a control method. The display substrate comprises a substrate, a pixel definition layerlocated on the substrate, and a first electrode layer, an organic light-emitting layer, a second electrode layer, an electrochromic layer and a third electrode layer arranged on the substrate in a stacked mode, wherein the first electrode layer is located on the substrate; and the electrochromic layer is located between the second electrode layer and the third electrode layer and is switched between a transparent state and a dark state under the action of the second electrode layer and the third electrode layer, so that the problem that when the existing OLED display device does not display, shining still exists is solved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a method for preparing a display substrate, a display substrate, a display panel and a control method. Background technique [0002] OLED (Organic Light-Emitting Diode) display is a new type of display device. Compared with liquid crystal display, OLED display has the advantages of self-illumination, fast response speed and wide viewing angle, and can perform flexible display, transparent display and 3D display. Therefore, it has been rapidly developed and popularized. [0003] In the prior art, in order to reduce the reflection of external light, OLED display devices generally set a color filter and a black matrix on the packaging film after the OLED structure is packaged, so as to realize the reflection of external light, but because the color filter is When the light is filtered, when the display device is not displaying, there will still be a problem of luminescen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/10H10K50/854H10K50/865H10K71/00
Inventor 孙海雁
Owner BOE TECH GRP CO LTD
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