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Display panel and display device

A display panel and display area technology, which is applied to semiconductor/solid-state device components, diodes, semiconductor/solid-state device testing/measurement, etc., and can solve problems such as cracks, display panel failure, and impact on display panel performance.

Active Publication Date: 2021-07-06
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For existing OLEDs, after the packaging is completed, the flexible display panel needs to be cut to form light holes or some areas where functional devices are placed. Usually, laser cutting is used, but laser cutting will result in partial areas of the display panel. High temperature, due to instantaneous temperature changes, cracks may appear on the edge of the light hole of the flexible display panel, and the cracks are likely to extend to the display area, thereby affecting the performance of the display panel. Cracks enter the display area, causing the display panel to fail. Therefore, there is an urgent need for a convenient method that can detect cracks in time and ensure the effectiveness of the display panel.

Method used

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Embodiment Construction

[0025] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" herein includes any direct and indirect electrical coupling means. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly elect...

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Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display, the display panel comprises a non-display area and a display area at least partially surrounding the non-display area, and a blocking area is further arranged between the display area and the non-display area; the display panel further comprises a substrate, an array layer, a light-emitting layer and a packaging layer which are arranged in a stacked mode; in the barrier region, the array layer comprises at least one groove sunken towards the substrate, and the light-emitting layer is disconnected at the groove; the packaging layer comprises a first organic layer, the first organic layer is located in the blocking area, and the groove is filled with the first organic layer in the direction perpendicular to the plate light-emitting face of the display face; and the first organic layer comprises a force-induced fluorescence discoloration material and is used for detecting the crack degree of the blocking area. According to the invention, a mode of doping the force-induced fluorescent color-changing material in the organic layer in the packaging layer is adopted, so that the crack condition can be sensitively detected, loss can be stopped in time, and the cost is saved.

Description

technical field [0001] The present application relates to the field of display technology, in particular, to a display panel and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) has become one of the most competitive technologies in the new generation of display devices due to its wide color gamut, high contrast ratio, energy saving, and foldability. It has a wide range of applications , for example, smart wearable devices, vehicle-mounted devices and smart home appliances. [0003] For existing OLEDs, after the packaging is completed, the flexible display panel needs to be cut to form light holes or some areas where functional devices are placed. Usually, laser cutting is used, but laser cutting will result in partial areas of the display panel. High temperature, due to instantaneous temperature changes, cracks may appear on the edge of the light hole of the flexible display panel, and the cracks are likely t...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L23/544
CPCH01L22/32H10K59/50H10K59/126Y02E10/549
Inventor 张国峰王俊强
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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