Display panel, display device and preparation process of display panel

A display panel and backplane technology, which is applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as OLED device failure and impact on OLED devices, increase graphic design, reduce process difficulty, and improve packaging effect of effect

Active Publication Date: 2019-06-21
BOE TECH GRP CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water vapor diffuses inside the panel, and it is easy to enter the light-emitting layer (Emitting layer, EL) material through defects in the area without TFE (Thin-Film Encapsulation, thin-film encapsulation), causing OLED devices to fail
[0005] In addition, in the existing narrow frame technology, no encapsulation measures are provided for the width of the DAM glue to the glass edge of more than 200nm, so that the external water and oxygen directly contact the DAM glue, which will affect the OLED device.

Method used

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  • Display panel, display device and preparation process of display panel
  • Display panel, display device and preparation process of display panel
  • Display panel, display device and preparation process of display panel

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Embodiment approach 2

[0106] refer to Figure 5 , which representatively shows a partial cross-sectional view of another embodiment of the display panel proposed in the present disclosure. In this exemplary embodiment, the design of the display panel proposed by the present disclosure is substantially the same as that of the display panel in the first embodiment. The design of the display panel in this embodiment that is different from the above embodiments will be described below.

[0107] Such as Figure 5 As shown, in this embodiment, the display panel proposed in the present disclosure only includes the first spacer 110 and the second spacer 210 , but does not include the third spacer 120 and the fourth spacer 220 . Specifically, the first spacer 110 and the second spacer 210 abut against each other to provide the function of blocking water and oxygen. Through the above design, the display panel proposed in the present disclosure can further meet the design requirements of devices with narro...

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Abstract

The invention provides a display panel. The display panel comprises a backboard, a cover board, a first spacer and a second spacer, wherein the backboard is provided with a first surface; the cover board is arranged opposite to the backboard and is provided with a second surface opposite to the first surface; the first spacer is arranged on the edge of the first surface in a protruding mode, is ofa closed structure and is provided with a first free end which is connected to a first connecting end of the backboard and extends away from the backboard; the second spacer is arranged on the edge of the second surface in a protruding mode, is of a closed structure and is provided with a second free end which is connected to a second connecting end of the cover board and extends away from the cover board; and the first free end abuts against the second free end.

Description

technical field [0001] The present disclosure relates to the technical field of display devices, in particular to a display panel, a display device, and a manufacturing process of the display panel. Background technique [0002] The packaging process commonly used in the manufacture of existing OLED display panels includes coating DAM encapsulation glue on the periphery of the backplane, filling Filler glue in the encapsulation glue, and making the Filler glue edge Spread in a certain direction and fill the gap between the upper and lower cover plates. Since each light-emitting layer of an OLED device is made of organic materials, it is extremely susceptible to the influence of water vapor, resulting in shortened device life, or even failure. Moreover, if water vapor invades, the outermost pixels will be affected first after passing through the DAM glue, and will gradually diffuse to the inside of the panel. Therefore, the water-blocking characteristics of the DAM structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K50/8426H10K50/8428H10K50/841H10K50/8423H10K71/00
Inventor 王国英宋振
Owner BOE TECH GRP CO LTD
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