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CN-119968065-B - Display panel manufacturing method, display panel and display device

CN119968065BCN 119968065 BCN119968065 BCN 119968065BCN-119968065-B

Abstract

The invention provides a preparation method of a display panel, the display panel and a display device. The method comprises the steps of providing a substrate, wherein the substrate comprises pixel opening areas and separation areas positioned between the pixel opening areas, forming a plurality of light emitting devices on the substrate, wherein the light emitting devices are in one-to-one correspondence with the pixel opening areas, forming a first conductive layer on one side of the light emitting devices far away from the substrate, forming a patterned barrier layer on one side of the first conductive layer far away from the substrate, wherein the barrier layer comprises a plurality of first patterns, the first patterns are in one-to-one correspondence with the pixel opening areas, forming an electrochromic layer on one side of the first conductive layer far away from the substrate, the first electrochromic layer is in one-to-one correspondence with the separation areas, the second electrochromic layer covers the barrier layer, removing the second electrochromic layer and the barrier layer by a stripping process, and forming the second conductive layer on one side of the electrochromic layer far away from the substrate. The display panel obtained by the preparation method provided by the invention has high luminous efficiency.

Inventors

  • Cao Shuangying

Assignees

  • 武汉天马微电子有限公司上海分公司

Dates

Publication Date
20260505
Application Date
20250123

Claims (12)

  1. 1. A method for manufacturing a display panel, the method comprising the steps of: Providing a substrate, wherein the substrate comprises pixel opening areas and separation areas positioned between the pixel opening areas, and a plurality of light emitting devices are formed on the substrate and correspond to the pixel opening areas one by one; forming a first conductive layer on a side of the light emitting device away from the substrate; patterning the first conductive layer to form a plurality of second patterns, wherein the second patterns are in one-to-one correspondence with the separation areas; Forming a patterned barrier layer, wherein the barrier layer comprises a plurality of first patterns, and the first patterns are in one-to-one correspondence with the pixel opening areas; forming an electrochromic layer on one side of the first conductive layer far away from the substrate, wherein the first part of electrochromic layer corresponds to the separation areas one by one, and the second part of electrochromic layer covers the barrier layer; Removing the second portion of electrochromic layer and the barrier layer using a lift-off process; a second conductive layer is formed on a side of the electrochromic layer remote from the substrate.
  2. 2. The method of manufacturing a display panel according to claim 1, wherein the electrochromic layer coats an edge of the second pattern.
  3. 3. The method of manufacturing a display panel according to claim 1 or 2, wherein after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further comprises the steps of: And patterning the second conductive layer to form a plurality of third patterns, wherein the third patterns are in one-to-one correspondence with the second patterns.
  4. 4. The method of manufacturing a display panel according to claim 1, wherein after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further comprises the steps of: the first conductive layer and the second conductive layer are patterned, the first conductive layer forms a plurality of second patterns, the second conductive layer forms a plurality of third patterns, and the second patterns are in one-to-one correspondence with the third patterns and the separation areas.
  5. 5. The method of manufacturing a display panel according to claim 1, wherein the electrochromic layer is formed using a coating process.
  6. 6. The method of manufacturing a display panel according to claim 1, wherein after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further comprises the steps of: forming a flat layer on one side of the second conductive layer away from the substrate; And forming a touch control layer on one side of the flat layer far away from the substrate.
  7. 7. The method of manufacturing a display panel according to claim 1, further comprising the step of, before forming the first conductive layer on a side of the light emitting device remote from the substrate: and forming an encapsulation layer on one side of the light emitting device away from the substrate.
  8. 8. A display panel prepared by the method of preparing a display panel according to any one of claims 1 to 7, comprising: a substrate including pixel opening regions and a partition region between the pixel opening regions; the light emitting devices are arranged on one side of the substrate and correspond to the pixel opening areas one by one; A first conductive layer located at one side of the light emitting device away from the substrate; The patterned electrochromic layers are positioned on one side of the first conductive layer away from the substrate and correspond to the separation areas one by one; And the second conductive layer is positioned on one side of the electrochromic layer away from the substrate.
  9. 9. The display panel of claim 8, wherein the first conductive layer includes a plurality of second patterns, the second patterns corresponding one-to-one to the separation regions.
  10. 10. The display panel of claim 9, wherein the second conductive layer includes a plurality of third patterns, the third patterns being in one-to-one correspondence with the second patterns.
  11. 11. The display panel of claim 9, wherein the electrochromic layer wraps around an edge of the second pattern.
  12. 12. A display device comprising the display panel according to any one of claims 8 to 11.

Description

Display panel manufacturing method, display panel and display device Technical Field The invention relates to the technical field of display, in particular to a preparation method of a display panel, the display panel and a display device. Background With the development of display technology, electronic devices such as mobile phones and computers with display screens have been increasingly used. In some large viewing angle situations, a user may wish that information displayed by the electronic device may not be available to others in the surroundings, i.e., may wish that the electronic device have privacy functionality. In the prior art, a peep-proof film is attached to a screen of an electronic device, and can filter light rays of the electronic device at a large visual angle, so that information displayed by the electronic device can not be acquired by other surrounding people. However, the arrangement of the peep-proof film affects the light-emitting efficiency of the electronic device, and needs to be improved for the problem. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide a preparation method of a display panel, the display panel and a display device, and improve the light emitting efficiency of the peep-proof display panel. The embodiment of the invention provides a preparation method of a display panel, which comprises the following steps: Providing a substrate, wherein the substrate comprises pixel opening areas and separation areas positioned between the pixel opening areas, and a plurality of light emitting devices are formed on the substrate and correspond to the pixel opening areas one by one; forming a first conductive layer on a side of the light emitting device away from the substrate; Forming a patterned barrier layer, wherein the barrier layer comprises a plurality of first patterns, and the first patterns are in one-to-one correspondence with the pixel opening areas; forming an electrochromic layer on one side of the first conductive layer far away from the substrate, wherein the first part of electrochromic layer corresponds to the separation areas one by one, and the second part of electrochromic layer covers the barrier layer; Removing the second portion of electrochromic layer and the barrier layer using a lift-off process; a second conductive layer is formed on a side of the electrochromic layer remote from the substrate. In some embodiments, before the forming the patterned barrier layer, the method further includes the steps of: and patterning the first conductive layer to form a plurality of second patterns, wherein the second patterns are in one-to-one correspondence with the separation areas. In some embodiments, the electrochromic layer wraps around an edge of the second pattern. In some embodiments, after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further includes the steps of: And patterning the second conductive layer to form a plurality of third patterns, wherein the third patterns are in one-to-one correspondence with the second patterns. In some embodiments, after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further includes the steps of: the first conductive layer and the second conductive layer are patterned, the first conductive layer forms a plurality of second patterns, the second conductive layer forms a plurality of third patterns, and the second patterns are in one-to-one correspondence with the third patterns and the separation areas. In some embodiments, the electrochromic layer is formed using a coating process. In some embodiments, after the second conductive layer is formed on the side of the electrochromic layer away from the substrate, the method further includes the steps of: forming a flat layer on one side of the second conductive layer away from the substrate; And forming a touch control layer on one side of the flat layer far away from the substrate. In some embodiments, before forming the first conductive layer on a side of the light emitting device remote from the substrate, the method further comprises the steps of: and forming an encapsulation layer on one side of the light emitting device away from the substrate. The embodiment of the invention also provides a display panel, which comprises: a substrate including pixel opening regions and a partition region between the pixel opening regions; the light emitting devices are arranged on one side of the substrate and correspond to the pixel opening areas one by one; A first conductive layer located at one side of the light emitting device away from the substrate; The patterned electrochromic layers are positioned on one side of the first conductive layer away from the substrate and correspond to the separation areas one by one; And the second conductive layer is positioned on one side of the electrochromic layer awa