Display driving circuit, working method thereof and display panel
A display driver and working method technology, applied to static indicators, instruments, etc., can solve problems such as voltage drift, poor display panel display, affecting user use, etc., to achieve the effects of prolonging service life, avoiding voltage drift, and saving resources
Inactive Publication Date: 2020-03-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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- Abstract
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- Application Information
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Problems solved by technology
The voltage drift will occur after the TFT works for a long time, which will cause poor display on the display panel and affect the user's use
Method used
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.
[0020] see figure 1 , figure 1 It is a structural schematic diagram of the first embodiment of the display driving circuit provided by the present invention. The display driving circuit 10 includes a data line 11 , a scan line 12 , a first thin film transistor 13 , a second thin film transistor 14 , a third thin film transistor 15 , a light emitting diode 16 and a sensor 17 .
[0021] The data lines 11 and the scan lines 12 are perpendicular ...
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The invention discloses a display driving circuit, a working method thereof and a display panel. The display driving circuit comprises a data line and a scanning line which are perpendicular to each other and insulated from each other, the data line being used for providing data voltage, and the scanning line being used for providing scanning voltage; a first thin film transistor, a grid electrodeof the first thin film transistor being connected with the data line, and a first electrode being connected with the scanning line; a second thin film transistor, the grid of the second thin film transistor being connected with the second electrode of the first thin film transistor, the first electrode being connected with the first voltage output end and the second pole being connected with thesecond voltage output end; a third thin film transistor, a grid electrode of the third thin film transistor being connected with the sampling voltage output end, a first electrode being connected witha second electrode of the second thin film transistor, and a second electrode being connected with the reference voltage output end; a light-emitting diode, the anode of the light-emitting diode being connected with the second pole of the second thin-film transistor, and the cathode being connected with the second voltage output end; and an inductor, connected with the second electrode of the third thin film transistor. Through the mode, the display quality can be ensured, the service life of a product is prolonged, and resource waste is avoided.
Description
technical field [0001] The present invention relates to the display field, in particular to a display driving circuit, its working method and a display panel. Background technique [0002] With the development of technology, people have higher and higher requirements on the quality of display panels. The current common LED (light emitting diode, light emitting diode) driving circuit of the display panel adopts a 2T1C structure, that is, a circuit structure of two TFTs (Thin Film Transistor, thin film transistor) and one capacitor (capacity). After the TFT works for a long time, voltage drift will occur, resulting in poor display of the display panel and affecting the use of users. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a display driving circuit and a display panel, which can ensure display quality, prolong product life and avoid waste of resources. [0004] In order to solve the above-mentioned techni...
Claims
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Login to View More IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 刘全胜黄勇亮
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD