Curved surface display device and flexible display panel
A curved surface display device and flexible display technology, which is applied in the direction of identification devices, instruments, electrical components, etc., can solve the problems of poor display function lines, reduced service life, and reduced reliability of the display panel, so as to improve the life and service life of the display panel , the effect of improving reliability
Active Publication Date: 2020-10-16
YUNGU GUAN TECH CO LTD
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Problems solved by technology
However, after the display panel is bent, the chip-on-chip film between the display panel and the driving circuit board is pulled by stress, resulting in poor functional line or abnormal display of the display panel, or the chip-on-chip film is always in use during the normal use of the product. Being in a state of stress and tension leads to reduced product life and reduced reliability
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[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0026] In the curved display device, the flexible display panel is connected to the external driving circuit board through the chip-on-chip film, and signal transmission and conduction are performed through the chip-on-chip film. Among them, after the flexible display panel is bent, it is attached to the rigid curved hard cover, so that the flexible display panel and the curved hard cover form a rigid structure. After the display panel is bent and fixed to the curved hard cover, the chip-on-chip film will be pulled by the curved surface stress between the display panel and the driving circuit board, resulting in poor connection between the display panel and the driving circuit board, affecting the display of the display panel; or After binding, the display is normal. During ...
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The invention relates to the technical field of photoelectric display, and specifically relates to a curved surface display device and a flexible display panel. The curved surface display device comprises a flexible display panel, at least one chip on film and a driving circuit board; the flexible display panel comprises a panel body and at least one flexible extension part which is arranged on the edge of one side of the panel body and provided with a binding area; the end, deviating from the binding area, of each flexible extension part is electrically connected with the panel body, and eachflexible extension part is provided with a part which is not overlapped with the panel body in the direction parallel to the display surface of the display panel; one ends of the chips on film are inone-to-one correspondence with the binding areas of the flexible extension parts and are electrically connected with the binding areas; and the driving circuit board is electrically connected with the other ends of the chips on film. By arranging the flexible extension part on the flexible display panel, the stress formed by the chips on film when the display panel is bent can be reduced and dispersed, so that the yield of connection between the flexible display panel and the driving circuit board is improved, the service life of the chips on film is prolonged, and the reliability and the service life of the curved surface display device are improved.
Description
technical field [0001] The present application relates to the field of optoelectronic display technology, in particular to a curved display device and a flexible display panel. Background technique [0002] With the development of display technology, flexible displays are being used more and more. The applicant of the present application has discovered during long-term research and development that during the manufacturing process of a flexible display device, the display panel is generally connected to an external driving circuit board through a chip-on-chip film, and signal transmission and conduction are performed through the chip-on-chip film. However, after the display panel is bent, the chip-on-chip between the display panel and the driving circuit board is pulled by stress, resulting in poor functional line or abnormal display on the display panel, or the chip-on-chip film is always in use during the normal use of the product. Being in a state of stress and pulling r...
Claims
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IPC IPC(8): G09F9/30H01L27/32
CPCG09F9/301H10K59/12
Inventor 李鹏黄金艳孙鹏周丹丹
Owner YUNGU GUAN TECH CO LTD