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Driving method, driving circuit and display device of display substrate

A technology for displaying substrates and driving methods, applied to static indicators, instruments, etc., can solve problems such as large data signal pressure difference, ELVDD jump, brightness change, etc.

Active Publication Date: 2021-01-22
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if all black data is inserted into the NOTCH area, when the display screen refreshes a white picture, since the NOTCH area is black data, and the data outside the NOTCH area is white data, the data signal on the row of pixel data lines closest to the NOTCH area is the same as the previous data signal. The voltage difference of the data signal on a row of pixel data lines will be relatively large, because the voltage jump of the coupling relationship will cause the jump of ELVDD, which will cause the brightness change, and the human eye will appear to have the problem of line crosstalk (crosstalk between lines)

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  • Driving method, driving circuit and display device of display substrate
  • Driving method, driving circuit and display device of display substrate

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Embodiment Construction

[0035] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0036] At present, mobile terminals such as mobile phones are pursuing a full screen, and the larger the screen-to-body ratio, the better. However, in order to avoid the front camera, earpiece hole, IR (infrared) hole, etc. on the front of the mobile phone, a notch area S2 is set on the screen of the mobile phone. Such as figure 1 As shown, the notch area S2 is embedded in the effective display area S1, and the notch area S2 is not displayed, wherein, figure 1 The right part is figure 1 In the enlarged schematic diagram of the part inside the circle on the left, it can be seen that the shape of the notch area S2 is irregular.

[0037] In the prior art, the data processing of the notch area S2 is performed by black insertion processin...

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Abstract

The invention provides a driving method, a driving circuit and a display device of a display substrate, which belong to the technical field of display. Among them, the driving method of the display substrate, the display substrate includes an effective display area and a notch area embedded in the effective display area, the gate lines and data lines of the effective display area extend to the notch area, the The driving method includes: when the display substrate is displaying, inputting a gray scale value less than 2 to the area adjacent to the notch area and the effective display area n -1 is greater than 0 grayscale data, wherein the grayscale data is n-bit data. The technical solution of the invention can improve the display effect of the OLED display device.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for driving a display substrate, a drive circuit and a display device. Background technique [0002] At present, for the AMOLED (active matrix organic light-emitting diode) display screen with NOTCH (notch) area, the data processing in the NOTCH area is to insert black, and then use the black pixel as the starting point to perform transition processing on the nearby pixels. If there is no transition processing, the boundary of the NOTCH area will be stepped, and the jaggedness is obvious. Insert black data into the NOTCH area, and then perform transition processing on the surrounding pixels (from black to white), the human eye will look very smooth, no Jagged. [0003] However, if all black data is inserted into the NOTCH area, when the display screen refreshes a white picture, since the NOTCH area is black data, and the data outside the NOTCH area is white dat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0209G09G3/2007G09G2310/0232G09G2320/0233
Inventor 王铁钢
Owner BOE TECH GRP CO LTD