Display panel cutting and trimming method, display panel and display device

A display panel and edge trimming technology, which can be used in identification devices, instruments, electrical solid devices, etc., can solve problems such as film peeling on flexible substrates, and achieve the effect of reducing the risk of film peeling.

Active Publication Date: 2021-10-01
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of laser cutting and trimming of flexible display panels, the film layer on the flexible substrate is peeled off due to the thermal impact of laser cutting on the flexible substrate.

Method used

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  • Display panel cutting and trimming method, display panel and display device
  • Display panel cutting and trimming method, display panel and display device
  • Display panel cutting and trimming method, display panel and display device

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Embodiment Construction

[0039] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0040] Various structural schematic diagrams according to embodiments of the present disclosure are shown in the accompanying drawings. The figures are not to scale, some details have been exaggerated for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships are only exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art should Regions / la...

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Abstract

The invention relates to the technical field of display, and particularly relates to a display panel cutting and trimming method, a display panel and a display device. The cutting and trimming method comprises the following steps that a flexible substrate comprises a first organic layer, an inorganic layer and a second organic layer which are arranged in a stacked mode, and the first organic layer is located on the side, away from the light emitting surface of the display panel, of the inorganic layer; a barrier layer is formed on at least one side, far away from the first organic layer, of the second organic layer, and the barrier layer is patterned by taking the cutting channel as a center; the flexible substrate is etched by taking the barrier layer as a mask pattern to at least expose the first organic layer so as to form a groove taking the cutting channel as the center on the flexible substrate; and laser cutting and trimming are performed on the cutting area along the cutting channel. The grooves can avoid the influence of residual heat in the laser cutting process on interfaces of the second organic layer and the inorganic layer, the problems of interface bonding force weakening, dislocation and warping separation of the second organic layer and the inorganic layer are solved, and then the risk of film layer stripping caused by multiple times of bending is reduced.

Description

technical field [0001] The present application relates to the field of display, and in particular, to a method for cutting and trimming a display panel, a flexible display panel and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode), also known as organic electric laser display, organic light-emitting semiconductor. OLED display panels are lighter and thinner than LCD (liquid crystal display panels), with high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency. They can meet the new needs of consumers for display technology, and have gradually become major manufacturers. research hotspot. Due to its thinness and flexibility, research on foldable and bendable flexible display panels has also been promoted. The flexible display panel needs to be stable and reliable in structure after being bent or folded many times in use. [0003] At present, in the process of laser cutting and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/56H01L27/32G09F9/30
CPCG09F9/301H10K59/12H10K77/111H10K59/1201H10K71/00Y02E10/549
Inventor 夏亚琴柳家娴付桢
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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