Display panel, display panel manufacturing method and display device

A technology for display panels and array substrates, which is used in the manufacture of semiconductor/solid-state devices, semiconductor devices, electrical components, etc., and can solve the problem of sub-pixels stealing light, blue sub-pixels not being completely black, and affecting the display quality of organic light-emitting display panels. And other issues

Active Publication Date: 2021-07-27
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • 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

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  • 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
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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 in the embodiment of the present application, image 3 It is a top view of another display panel 1000 provided by the embodiment of the present application. The 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 provided 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 below 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 in the embodiment of the present application, image 3 It is a top view of another display panel 1000 provided by the embodiment of the present application. The 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 provided 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 below 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 lig...

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 examples, 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 first 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, then the second electrodes 23 between adjacent light emitting devices 59 will not be insulated from each other. The smooth supply...

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Abstract

The embodiment of the invention discloses a display panel, a display panel manufacturing method and a display device. The display panel comprises an array substrate and light emitting devices arranged on the array substrate in an array mode. A current blocking structure is arranged between adjacent light-emitting devices in at least one arrangement direction, the current blocking structure comprises an auxiliary layer in a slit shape and a groove below a slit of the auxiliary layer, and the cross section of a film layer of the groove has an undercut profile, so that current can be prevented from transversely flowing between adjacent sub-pixels; therefore, the problem that the sub-pixels are brightened secretly due to transverse current flowing is solved.

Description

technical field [0001] The present application relates to the field of display, and in particular to a display panel, a manufacturing method of 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 and computers. With the development of display technology and people's requirements for the progress of the display technology, people have higher and higher requirements for the display quality of the display panel. [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 i...

Claims

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Application Information

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Patent Type & AuthorityApplications(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