Array substrate and manufacturing method thereof and OLED (organic light emitting diode) display device
An array substrate and substrate technology, which is applied in the field of display device manufacturing, can solve the problems of reducing the effective light-emitting area of the OLED display device, the complex manufacturing process of the OLED display device, and increasing the difficulty and cost of product production, so as to reduce the coverage area and reduce the Production difficulty and production cost, the effect of improving display brightness
Active Publication Date: 2015-02-25
BOE TECH GRP CO LTD
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Problems solved by technology
[0005] Due to the existence of the connection electrode 17, the area where the connection electrode 17 is located needs to be covered by a black matrix, so that the effective light-emitting area of the OLED display device is reduced and the display brightness is reduced.
On the other hand, the array substrate of such an OLED display device needs to go through seven masking processes from the setting of the gate to the setting of the pixel electrode to form the gate layer, gate insulating layer, active layer, etch respectively. Barrier layer, source-drain electrode layer, resin layer, pixel electrode and connection electrode, and in order to connect the first drain electrode 113 and the second grid 121, it is necessary to set a plurality of via holes on the substrate, which will lead to the fabrication of OLED display devices. The process is more complicated, which greatly increases the production difficulty and production cost of the product
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[0038] 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 persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] The array substrate 30 provided by the embodiment of the present invention, such as Figure 3a As shown, it includes: a plurality of sub-pixel units divided on the substrate 300 by crossing gate lines 31 and data lines 32, each sub-pixel unit includes a first TFT33, a second TFT34 and a pixel electrode 35, the first TFT33 The gate 331 is connected to the gate line 31 , the source 332 of the first TFT 33 is connected to the data line 32 , and the drain 3...
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An array substrate and a manufacturing method thereof, and an OLED display device are provided. The array substrate comprises: sub-pixel units defined by gate lines and data lines that cross with each other on a substrate, each of the sub-pixel units comprising a first TFT, a second TFT and a pixel electrode, a gate electrode of the first TFT being connected to the gate line, a source electrode of the first TFT being connected to the data line, and a drain electrode of the second TFT being connected to the pixel electrode. The source electrode and a drain electrode of the first TFT are formed on the same layer as a gate electrode of the second TFT, and the drain electrode of the first TFT is directly connected to the gate electrode of the second TFT.
Description
technical field [0001] The invention relates to the field of display device manufacturing, in particular to an array substrate, a manufacturing method thereof, and an OLED display device. Background technique [0002] Among various existing display devices, due to OLED (Organic Light-Emitting Diode, organic light-emitting diode) display and CRT (Cathode Ray Tube, cathode ray tube) display or TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film Compared with transistor liquid crystal display), it has the characteristics of lighter and thinner appearance design, wider viewing angle, faster response speed and lower power consumption. Therefore, OLED display has gradually become the next generation display device. people's attention. [0003] An OLED display device is a self-luminous device, which generally includes a pixel electrode, a counter electrode disposed opposite to the pixel electrode, and an organic light emitting layer disposed between the pixel electrode...
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IPC IPC(8): H01L27/32H01L51/56
CPCH01L27/3262H01L27/3276H01L33/08H01L2227/323H01L27/1251H01L27/32H01L27/1225H01L27/124H10K59/1213H10K59/131H10K59/1201H10K59/00
Inventor 牛菁
Owner BOE TECH GRP CO LTD