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Active matrix organic light emitting diode display and manufacturing method thereof

A light emitting diode and active matrix technology, which is applied in the field of active matrix organic light emitting diode displays and their production, can solve the problems of reducing production efficiency, increasing production costs, occupying the production capacity of exposure machines, etc., so as to improve production efficiency and reduce production. Cost, effect of reducing mask process

Active Publication Date: 2020-03-17
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The manufacturing method of the existing AMOLED display mainly includes the following steps: depositing a buffer layer, an active layer, a first gate insulating layer, a first gate, a second gate insulating layer, a second gate, an interlayer Insulation layer, source / drain electrode, planar layer, anode, pixel definition layer, and photoresist spacer, but the existing manufacturing method requires 11 masks, so it will occupy more production capacity of the exposure machine, reduce production efficiency, increase increased production costs

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  • Active matrix organic light emitting diode display and manufacturing method thereof
  • Active matrix organic light emitting diode display and manufacturing method thereof
  • Active matrix organic light emitting diode display and manufacturing method thereof

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Embodiment Construction

[0037] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar units are denoted by the same reference numerals.

[0038] The structure of the existing AMOLED display and figure 1 Same, its preparation method mainly comprises the following steps:

[0039] S101 , sequentially depositing a flexible layer 12 , an isolation layer 13 and a buffer layer 14 on a base substrate 11 .

[0040] S102 , forming an active layer 15 on the buffer layer 14 , and patterning the active layer 15 t...

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Abstract

The invention provides an active-matrix organic light emitting diode display and a fabrication method thereof. The fabrication method comprises the steps of patterning a first interlayer insulation layer by employing a first mask so that two first via holes are formed in the first interlayer insulation layer arranged in a display region and the first interlayer insulation layer arranged in a non-display region forms a first part; or patterning the first interlayer insulation layer by employing the first mask so that the two first via holes are formed in the first interlayer insulation layer arranged in the display region and the first interlayer insulation layer arranged in the non-display region forms a second part, wherein a second via hole comprises the first part and the second part. By the active-matrix organic light emitting diode display and the fabrication method thereof, the mask process can be reduced, and the production cost is reduced.

Description

【Technical field】 [0001] The invention relates to the field of display technology, in particular to an active matrix organic light emitting diode display and a manufacturing method thereof. 【Background technique】 [0002] OLED can be divided into passive OLED (PMOLED) and active OLED (AMOLED) according to driving type. Among them, the active matrix organic light emitting diode (Active-matrix organic light emitting diode, AMOLED) display is usually composed of a low temperature polysilicon (Low Temperature Poly-Silicon, LTPS) driving backplane and an electroluminescent layer to form a self-luminous component. Low-temperature polysilicon has high electron mobility. For AMOLED, the use of low-temperature polysilicon materials has the advantages of high resolution, fast response speed, high brightness, high aperture ratio, and low energy consumption. [0003] The manufacturing method of the existing AMOLED display mainly includes the following steps: depositing a buffer layer, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
Inventor 胡重粮
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD