Preparation method of flexible OLED display panel, and flexible OLED display panel
A display panel and flexible technology, applied in the field of OLED display, can solve the problems affecting product yield, separation/falling off, separation/falling off of packaging layers and OLED display units, etc., to reduce the risk of falling off, ensure integrity, and improve The effect of production yield
Active Publication Date: 2020-11-27
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
Among them, in the process of attaching the support layer under the flexible substrate of the display module, there will be a process of adsorption on the barrier layer of the display module. Because the adsorption holes will absorb the multi-layer structure in the display module, it is easy to Causes separation / peeling between the multi-layer structures in the display module, which seriously affects the product yield
For example, it is easy to cause separation / shedding between the encapsulation layer and the OLED display unit, the cathode in the OLED display unit and the organic layer, etc.
Method used
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[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0027] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather tha...
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The embodiment of the invention discloses a preparation method of a flexible OLED display panel, and the flexible OLED display panel, and relates to the technical field of display. The preparation method comprises the following steps: forming a display module; attaching a protective layer to the display module, wherein the adhesive capacity between the protective layer and the display module is not greater than the adhesive capacity between multilayer structures in the display module; after the display module is adsorbed on the protective layer, attaching a supporting mold to the side, away from the protective layer, of the display module; and removing the protective layer. According to the embodiment of the invention, the adhesive capacity between the protective layer and the display module is set to be not greater than the adhesive capacity between multiple layers of structures in the display module, and in this way, the protective layer is sacrificed, so that the separation / fallingphenomenon does not occur among the multilayer structures in the display module, the integrity among the multilayer structures of the display module is guaranteed, the risk of falling among the multilayer structures in the display module is reduced, and the production yield is increased.
Description
technical field [0001] The present application relates to the field of OLED display technology, in particular to a method for preparing a flexible OLED display panel and the flexible OLED display panel. Background technique [0002] Organic Light Emission Display (OLED) devices have many advantages: active light emission, high brightness, high contrast, low power consumption, wide viewing angle, fast response, wide operating temperature range, light and thin, etc., the largest The advantage of is that it can realize flexible display. Conventional flexible organic light-emitting diodes (FlexibleOLED), usually first form a display module, which includes a sequentially formed flexible substrate, thin film transistor backplane, OLED display unit (including anode, cathode, organic layer, pixel definition layer and light-emitting layer, etc.), encapsulation layer and barrier layer (the barrier layer can also be called a protective layer); then attach a support layer under the fle...
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IPC IPC(8): H01L21/683H01L27/32H01L21/77
CPCH01L21/6836H01L2221/6834H01L2221/68386H10K59/12H10K59/1201Y02E10/549
Inventor 钱佳佳
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD