Display panel, display panel manufacturing method, and display device

A technology for display panels and array substrates, which is used in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., and can solve the problems affecting the display quality of organic light-emitting display panels, blue sub-pixels cannot be completely black, and sub-pixels are stealthy. And other issues

Active Publication Date: 2022-07-12
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there has always been a problem of sub-pixel stealing light in organic light-emitting display panels, because there is a lateral leakage current between adjacent sub-pixels, for example, when the green sub-pixel is displayed, and when the blue sub-pixel is turned off, the green sub-pixel and the blue If the sub-pixels are adjacent to each other, the current in the green sub-pixel will flow laterally into the blue sub-pixel, causing the blue sub-pixel to emit light instead of being completely black, which seriously affects the display quality of the organic light-emitting display panel.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Display panel, display panel manufacturing method, and display device
  • Display panel, display panel manufacturing method, and display device
  • Display panel, display panel manufacturing method, and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see figure 1 , figure 2 , image 3 , figure 1 A cross-sectional view of a display panel 1000 provided in an embodiment of the present application, figure 2 It is a top view of a display panel 1000 provided by an embodiment of the present application, image 3 This is a top view of another display panel 1000 provided by an embodiment of the present application. An embodiment of the present application provides a display panel 1000. The display panel 1000 includes an array substrate and light-emitting devices 59 arrayed on the array substrate, wherein at least A current blocking structure 60 is disposed between adjacent light emitting devices 59 in one arrangement direction, and the current blocking structure 60 includes an auxiliary layer 190 in the shape of a slit and a groove 181 under the slit 191 of the auxiliary layer 190 , The cross section of the groove 181 has an undercut profile.

[0041] Specifically, the display panel 1000 includes a plurality of light ...

Embodiment 2

[0056] see Figure 4 , figure 2 , image 3 , Figure 4 A cross-sectional view of a display panel 1000 provided in an embodiment of the present application, figure 2 It is a top view of a display panel 1000 provided by an embodiment of the present application, image 3 This is a top view of another display panel 1000 provided by an embodiment of the present application. An embodiment of the present application provides a display panel 1000. The display panel 1000 includes an array substrate and light-emitting devices 59 arrayed on the array substrate, wherein at least A current blocking structure 60 is disposed between adjacent light emitting devices 59 in one arrangement direction, and the current blocking structure 60 includes an auxiliary layer 190 in the shape of a slit and a groove 181 under the slit 191 of the auxiliary layer 190 , The cross section of the groove 181 has an undercut profile.

[0057] Specifically, the display panel 1000 includes a plurality of ligh...

Embodiment 3

[0072] The embodiment of the present application further describes in detail the location of the current blocking structure in the above embodiment.

[0073] In some embodiments, see image 3 , the current blocking structure 60 includes a first current blocking structure 610 between adjacent light emitting devices 59 arranged along the first direction, and a current blocking structure 610 between adjacent light emitting devices 59 arranged along the second direction The second current blocking structure 620, the first current blocking structure 610 and the second current blocking structure 620 do not intersect, and the first direction intersects the second direction.

[0074] Specifically, if the first current blocking structure 610 in the first direction does not intersect with the second current blocking structure 620 in the second direction, the second electrodes 23 between adjacent light emitting devices 59 will not be insulated from each other, and also The smooth supply...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the present application disclose a display panel, a method for manufacturing the display panel, and a display device. The display panel includes an array substrate and light-emitting devices arranged in an array on the array substrate; wherein, at least one light-emitting device between adjacent light-emitting devices in an arrangement direction is provided. A current blocking structure is provided, and the current blocking structure includes an auxiliary layer in the shape of a slit and a groove under the slit of the auxiliary layer. The lateral flow between the pixels solves the problem of sub-pixels brightening caused by the lateral flow of current.

Description

technical field [0001] The present application relates to the field of display, and in particular, to a display panel, a method for manufacturing the display panel, and a display device. Background technique [0002] Organic light-emitting display panels (OLED panels) have been widely used in people's lives, such as display screens of mobile phones, computers, and the like. With the development of display technology and people's requirements for the advancement of display technology, people have higher and higher requirements on the display quality of display panels. [0003] However, in organic light emitting display panels, there has always been a problem of sub-pixels brightening due to the lateral leakage current between adjacent sub-pixels. If the sub-pixels are adjacent, the current in the green sub-pixel flows laterally into the blue sub-pixels, causing the blue sub-pixels to emit light but not in a completely black state, which seriously affects the display quality ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H01L51/50H01L51/52H01L27/32H01L51/56
CPCH10K59/12H10K50/11H10K50/80H10K50/805H10K59/1201H10K71/00
Inventor李雪云
OwnerWUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD