Display panel and display device
A display panel and display area technology, applied in the direction of identification devices, instruments, etc., can solve problems such as stress unevenness, large differences in expansion and contraction scales between driver chips and glass substrates, and glass warping and deformation, so as to improve stress unevenness. Uniformity, the effect of improving display quality and process yield
Active Publication Date: 2022-07-29
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
Since the glass substrate of the driver chip and the display panel belong to two different materials, the thermal expansion coefficients of the two are different. Therefore, during the process of high-temperature thermocompression bonding and cooling to room temperature, the expansion and contraction scales of the driver chip and the glass substrate are very different. Large, there is a large stress accumulation at the interface between the two materials. After removing the indenter, the glass in the bonding area where the driver chip is located is warped and deformed, resulting in uneven display in the nearby display area and the formation of stress mura (uneven) phenomenon.
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[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0024] Embodiments of the present application provide a display panel and a display device. Each of them will be described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments. In addition, in the description of this application, the term "including" means "including but not limited to". The terms first, second, third, etc. are used merely as designatio...
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The embodiment of the present application discloses a display panel and a display device, the display panel includes a display area and a binding area on one side of the display area, the display panel further includes a first substrate and an electronic device; wherein, the The first substrate includes a film layer located in the binding area, the film layer is provided with a plurality of first grooves; the electronic device is located on the film layer and located in the binding area; a plurality of The first trench corresponds to the electronic device. The embodiments of the present application can effectively improve the phenomenon of uneven stress in the binding region where the electronic device is located in the display device, and further improve the display quality and process yield of the display device.
Description
technical field [0001] The present application relates to the field of display technology, and in particular, to a display panel and a display device. Background technique [0002] With the wide application of display devices (such as mobile phones), full-screen or high screen-to-body ratio has become an important technical indicator for measuring the display device. Therefore, the technology of realizing a narrow frame under the display panel becomes more and more important. The display device generally includes a display panel cell, a printed circuit board (PCB), a driver chip (IC), etc. The display panel and the driver chip generally use COG (Chip OnGlass, the chip is fixed on a glass substrate) method through anisotropic conductive adhesive (Anisotropic ConductiveFilm) , ACF) connection, and the printed circuit board and the display panel are connected through a flexible circuit board (FPC). [0003] During the research and practice of the prior art, the inventors of th...
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IPC IPC(8): G09F9/00
Inventor 聂晓辉
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD