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AMOLED display panel and preparation method thereof

A technology for display panels and substrates, which is used in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., and can solve problems such as the impact of pixel resolution, low AMOLED yield, and reduction.

Pending Publication Date: 2021-05-11
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, using this traditional design where the capacitor is not directly below the OLED display device will have an impact on pixel resolution
If the capacitor is placed directly under the OLED display device, since the inkjet printing technology has high requirements on the flatness of the pixel light-emitting area, especially the anode of the pixel light-emitting area, if the traditional sandwich capacitor structure is used, it will inevitably produce low flatness. AMOLED yield reduction phenomenon caused by

Method used

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  • AMOLED display panel and preparation method thereof
  • AMOLED display panel and preparation method thereof
  • AMOLED display panel and preparation method thereof

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0048] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simpl...

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Abstract

The embodiment of the invention discloses an AMOLED display panel and a preparation method thereof. The AMOLED display panel comprises a TFT array substrate and a top light emitting OLED device arranged on the TFT array substrate. The TFT array substrate comprises a buffer layer which is arranged on a shading layer and comprises a first buffer layer located in a driving TFT region, wherein the capacitor region is not provided with a buffer layer; and a grid electrode, a source electrode and a drain electrode located on the same layer. According to the embodiment of the invention, the buffer layer is not arranged in the capacitor region, so that the thickness of the capacitor in the capacitor region is reduced, the area of the capacitor is not changed, an interlayer capacitor is not adopted, the flatness below the anode of the top-emitting OLED device is ensured while high capacitance is ensured, and the yield of a panel is further improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an AMOLED display panel and a preparation method thereof. Background technique [0002] Organic Light-Emitting Diode (OLED) is an active light-emitting device. Compared with the current mainstream flat-panel display technology Liquid Crystal Display (LCD), OLED has the advantages of high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the next-generation flat-panel display technology after LCD. One of the most concerned technologies in flat panel display technology at present. Among them, AMOLED (Active-matrix organic light emitting diode, active organic light-emitting diode) has the characteristics of large size, low power consumption, high resolution, and long panel life, so it has been highly valued in the field of display technology. [0003] The existing AMOLED display panel includes: a TFT array substrate including a thin...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L21/77
CPCH10K59/1216H10K59/1213H10K59/1201
Inventor 陈远鹏徐源竣
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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