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Display panel and mobile terminal

A display panel and display area technology, which is applied in the direction of electrical components, electric solid devices, circuits, etc., can solve the problems that the insulating layer is easily broken down, the withstand voltage value of the display panel decreases, and the display panel is prone to bright lines, etc.

Pending Publication Date: 2022-04-12
SHENZHEN 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

When the Mini-LED display device is working, the input of the operating current makes the temperature of the overlapping area of ​​multiple metal traces in the fan-out trace area higher, resulting in the insulation layer between two adjacent metal traces being easily damaged. Breakdown, resulting in a decrease in the withstand voltage value of the display panel, which in turn causes the display panel to be prone to reliability problems such as bright lines

Method used

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  • Display panel and mobile terminal
  • Display panel and mobile terminal
  • Display panel and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, it is a schematic diagram of the planar area division of the display panel 100 provided by the embodiment of the present application; wherein, the display panel 100 includes a display area 10 and a frame area 20 located around the display area 10, and the frame area 20 is set There are metal wires of various signal types including gate drive metal signal wires; further, a plurality of metal wires, the driving chip of the display panel 100 and the A flexible printed circuit board used to drive and deliver electrical signals across the screen. Wherein, the plurality of metal wires correspond to the fan-out routing area 21 (fanout area) of the display panel 100, and the driving chip and the flexible printed circuit board correspond to the driving circuit area 22 of the display panel 100. .

[0035] In the embodiment of the present application, the display panel 100 is a Mini-LED display panel; in order to achieve a narrow frame design, the fan-...

Embodiment 2

[0059] Such as Figure 4 As shown, it is a schematic cross-sectional view of the second display panel 100 provided by the embodiment of the present application; wherein, the structure of the display panel 100 in the second embodiment of the present application is the same or similar to that of the display panel 100 in the first embodiment of the present application , the only difference is that the second insulating part includes a third inorganic insulating layer 1053, and the first insulating part includes the third inorganic insulating layer 1053 and the organic insulating layer disposed on the third inorganic insulating layer 1053. insulating layer 1054;

[0060] Wherein, the thickness of the organic insulating layer 1054 is smaller than the thickness of the third inorganic insulating layer 1053 .

[0061] In the embodiment of the present application, the third inorganic insulating layer 1053 is disposed in the same layer as the interlayer insulating layer in the display ...

Embodiment 3

[0068] like Figure 5 As shown, it is a schematic cross-sectional view of the third display panel 100 provided by the embodiment of the present application; wherein, the structure of the display panel 100 in the third embodiment of the present application is the same or similar to the structure of the display panel 100 in the second embodiment of the present application , the only difference is that the organic insulating layer 1054 includes a main body portion 10541 and overlapping portions 10542 disposed at both ends of the main body portion 10541;

[0069] Wherein, the thickness of the overlapping portion 10542 is smaller than the thickness of the main body portion 10541 .

[0070] In the embodiment of the present application, the overlapping portion 10542 is close to the opening area between the second metal layer 104 and the third metal layer 106; the thickness of the overlapping portion 10542 is smaller than that of the main body portion The thickness of 10541 can help ...

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Abstract

The embodiment of the invention provides a display panel and a mobile terminal. The display panel comprises a display area and a fan-out wiring area located on one side of the display area, the display panel further comprises a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a third metal layer, the first metal layer is located in the fan-out wiring area, and the second metal layer and the third metal layer both extend from the display area to the fan-out wiring area; wherein the second insulating layer comprises a first insulating part located in the fan-out wiring area and a second insulating part located in the display area, and the thickness of the first insulating part is larger than that of the second insulating part; according to the display panel, the thickness of the insulating layer between the second metal layer and the third metal layer in the fan-out wiring area is increased, so that the insulating layer between the second metal layer and the third metal layer in the fan-out wiring area can be prevented from being broken down due to high temperature, and the voltage resistance value of the display panel is increased; and the product yield of the display panel is further improved.

Description

technical field [0001] The present application relates to the display field, in particular to a display panel and a mobile terminal. Background technique [0002] Mini-LED (Mini Light Emitting Diode, submillimeter light-emitting diode) technology is a technology that integrates LED arrays with a size of 100 μm on the chip. The Mini-LED display panel made with this technology has adjustable regional brightness, high display Color, high contrast and other advantages. [0003] In order to realize the narrow frame design of the Mini-LED display panel, there are multiple metal traces on different layers in the fan-out trace area of ​​the Mini-LED display panel, and an insulating layer is provided between two adjacent metal traces. . Since the Mini-LED display device is driven by current, the fan-out routing area is an area where the current of the Mini-LED display device is intensively input due to the arrangement of metal wires of various signal types. When the Mini-LED displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/15H01L33/62
Inventor 龙思邦
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD