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A kind of flexible display panel and preparation method thereof

A flexible display and flexible substrate technology, applied in the direction of final product manufacturing, climate sustainability, sustainable manufacturing/processing, etc., can solve the problems of low production yield, uneven size of flexible substrate, COF bonding and FOF bonding Bit inaccuracy and other issues

Active Publication Date: 2021-01-26
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a flexible display panel and its preparation method, which solves the problems of inaccurate alignment of COF bonding and FOF bonding and low production yield caused by uneven size of flexible substrates

Method used

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  • A kind of flexible display panel and preparation method thereof
  • A kind of flexible display panel and preparation method thereof
  • A kind of flexible display panel and preparation method thereof

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...

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Abstract

The invention relates to the field of display technology, in particular to a flexible display panel and a preparation method thereof. The problem of inaccurate alignment of COF bonding and FOF bonding and low manufacturing yield caused by the non-uniform size of the flexible substrate is solved. An embodiment of the present invention provides a method for preparing a flexible display panel. The flexible display panel includes a display area and a bonding area, and the bonding area includes at least two COF bonding areas. The manufacturing method includes: preparing a flexible substrate; The surface of the flexible substrate corresponding to the display area forms pixel units arranged in an array; the position between at least two adjacent COF bonding areas is cut to form strip-shaped cracks or hollow areas, and the at least two phases The adjacent COF bonding area is separated and separated in structure; the back film is attached, and the back film corresponding to the strip crack or hollow area is cut off; the bonding of COF and FOF is carried out. The embodiment of the present invention is used to prepare a flexible display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible display panel and a preparation method thereof. Background technique [0002] At present, with the development of organic light-emitting display device (Organic Light-Emitting Diode, OLED) technology, the application of large-size flexible display panels in vehicles and foldable notebook computers is gradually put on the agenda. Due to the large size, a single IC or COF (Chip On Flex, chip-on-flex) can no longer meet the demand. [0003] In the production process of flexible display panels, when the flexible substrate is attached to the back film, it is usually attached by rolling. As the rolling pressure increases, stress will accumulate on the back film, adhesive material and flexible substrate. As a result, the flexible substrate is driven to expand, and the size of the expansion increases nonlinearly from the center to both sides, so the stress accumulation on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32G09F9/30
CPCG09F9/301H10K59/12Y02E10/549Y02P70/50H10K59/179H10K59/131H10K77/111H10K71/00H10K2102/311H10K59/1201
Inventor 张家豪谷朋浩蔡宝鸣
Owner BOE TECH GRP CO LTD
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