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Organic light emitting display device, organic light emitting display, and method for reducing leakage current

A luminescent display and leakage current technology, applied in static indicators, instruments, etc., can solve the problems of occupying a large pixel area, affecting PPI improvement, and difficult to make the pixel area smaller, achieving high resolution, improving quality, and The effect of reducing the number

Inactive Publication Date: 2015-03-18
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
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  • Claims
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AI Technical Summary

Problems solved by technology

The TFT in this structure will occupy a large pixel area, making it difficult to make the pixel area smaller, affecting the improvement of PPI
If it is a multi-gate structure, there will be more TFTs, and the impact on improving PPI will be more obvious

Method used

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  • Organic light emitting display device, organic light emitting display, and method for reducing leakage current
  • Organic light emitting display device, organic light emitting display, and method for reducing leakage current
  • Organic light emitting display device, organic light emitting display, and method for reducing leakage current

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0022] Firstly, it is explained that the first electrode and the second electrode in the present invention respectively refer to the other two electrodes in the TFT except the gate.

[0023] Such as figure 2 Shown is a partial circuit diagram of an embodiment of an organic light-emitting display device with a double gate structure in the present invention. In this embodiment, each organic light-emitting display device 21 includes a plurality of sub-pixel circuit units 22, 23, and 24. In this embodiment, there are three sub-pixel circuit units, respectively R, G, and B sub-pixels. Each sub-pixel circuit unit is respectively connected with a first thin film transistor TFT M 11 , ...

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Abstract

The invention discloses an organic light emitting display device, an organic light emitting display, and a method for reducing leakage current. The display comprises a plurality of display devices. The device comprises a plurality of sub pixel circuit units of which each is connected with a first TFT, the gates of the first TFTs are connected with a GATE line, and a first electrode of each first TFT is connected with the corresponding sub pixel circuit unit. Each organic light emitting display device comprises a second TFT of which the gate is connected with a GATE line, a first electrode is connected with a second electrode of each first TFT, and a second electrode is connected with a voltage V0. By configuring the TFTs between the pixel circuit and the voltage V0, the leakage current of the pixel circuit is reduced. Apart from the first TFTs, the TFTs of other levels are shared by all sub pixels belonging to the same pixel, which greatly reduces the number of TFTs, reduces the pixel area occupied by TFTs, can promote the PPI to meet the demands of PPT products, realizes display with higher-resolution, and enhances the quality of the display.

Description

technical field [0001] The invention relates to the field of organic light emitting displays, in particular to an organic light emitting display device, a display and a method for reducing leakage current. Background technique [0002] Organic light-emitting display devices (OLEDs) are active light-emitting devices. Compared with the current mainstream flat-panel display technology Thin Film Transistor Liquid Crystal Display (TFT-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. It is one of the most concerned technologies in flat panel display technology. [0003] With the gradual improvement of consumers' requirements for display quality, the gradual increase of PPI (pixels per inch) is the main direction of future display development. For active matrix organic light-emitting displays (AMOLED), the increase of PPI means With t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3225
Inventor 胡思明邱勇黄秀颀高孝裕永井肇
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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