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Flexible oled display and manufacturing method thereof

A manufacturing method and display technology, applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve problems such as uneven stress, small contact area, limiting the scope of application of flexible OLED displays and bending methods, etc., to achieve Increased adhesion, high packaging strength, and the effect of realizing touch sensing functions

Active Publication Date: 2018-10-26
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

Although the inorganic layer in the thin film encapsulation layer 40 has strong adhesion to the TFT array layer 20 on the flexible substrate 10, the contact area is relatively small
When the flexible OLED display is impacted by external force, or in the process of multiple bending or curling, the internal part is easily subjected to uneven stress, so as to Figure 2A As shown in the OLED layer 30 local peeling (peeling) phenomenon occurs, even as Figure 2B The peeling problem of the entire flexible OLED display appears, which greatly limits the scope of application and bending methods of flexible OLED displays

Method used

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  • Flexible oled display and manufacturing method thereof
  • Flexible oled display and manufacturing method thereof
  • Flexible oled display and manufacturing method thereof

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Embodiment Construction

[0049] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0050] see image 3 , the present invention provides a flexible OLED display, comprising a flexible substrate 100, a TFT array layer 200 disposed on the flexible substrate 100, an OLED layer 300 disposed on the TFT array layer 200, a TFT array layer disposed on the TFT array layer 200 and the thin film encapsulation layer 400 covering the OLED layer 300 on the OLED layer 300, the organic planar layer 500 disposed on the TFT array layer 200 and the thin film encapsulation layer 400 covering the thin film encapsulation layer 400, and the The TFT array layer 200 and the organic planar layer 500 cover the touch sensing layer 600 of the organic planar layer 500 .

[0051] It should be noted that, in the flexible OLED display of the present inventi...

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Abstract

The invention provides a flexible OLED display and a manufacturing method thereof. In the flexible OLED display of the present invention, an organic planar layer covering the thin film encapsulation layer is arranged on the thin film encapsulation layer and the TFT array layer, and a touch sensing layer covering the organic planar layer is arranged on the organic planar layer and the TFT array layer, so that The flexible OLED display has a touch sensing function. At the same time, the organic flat layer, the touch sensing layer and the thin film encapsulation layer are used as the encapsulation structure to encapsulate the OLED layer, increasing the adhesion between the encapsulation structure and the TFT array layer, and enhancing the flexibility. The packaging strength of the OLED display can effectively relieve the stress generated when the flexible OLED display is folded and curled, greatly improving the impact resistance and bending resistance of the flexible OLED display, preventing the flexible OLED display from peeling off at the OLED layer, and improving the product quality. stability.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible OLED display and a manufacturing method thereof. Background technique [0002] Organic light-emitting diode (Organic Light-Emitting Diode, OLED) display, also known as organic electroluminescent display, is a new type of flat panel display device, due to its simple preparation process, low cost, low power consumption, high luminance, Wide range of working temperature, light and thin size, fast response speed, easy to realize color display and large-screen display, easy to realize matching with integrated circuit driver, easy to realize flexible display, etc., so it has broad application prospects. [0003] According to the driving method, OLED can be divided into two categories: passive matrix OLED (Passive Matrix OLED, PMOLED) and active matrix OLED (Active Matrix OLED, AMOLED), namely direct addressing and thin film transistor (TFT, Thin Film Transistor) There are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56H01L51/00H01L27/32
CPCH10K59/40H10K77/111H10K50/841H10K50/844H10K71/00Y02E10/549Y02P70/50
Inventor 黄添旺崔磊
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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