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Display driving device and method, shifting register and display device

A shift register, display driving technology, applied in static memory, static indicator, digital memory information, etc., can solve the problems of poor gate line and insufficient charging, increase the turn-on current and avoid bad gate line , The effect of avoiding the problem of bad gate lines

Inactive Publication Date: 2017-05-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above technical problems, an embodiment of the present invention provides a display driving device and method, a shift register and a display device to solve the problem of poor gate lines caused by insufficient charging

Method used

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  • Display driving device and method, shifting register and display device
  • Display driving device and method, shifting register and display device
  • Display driving device and method, shifting register and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In this embodiment, a high-voltage driving clock signal is output according to the position of the sub-pixel row currently being driven and displayed and information about the current temperature.

[0067] Such as Figure 7 As shown, the timing controller 10 includes a connected temperature detection unit 11 and a selection unit 12, and the selection unit 12 is connected to the logic control unit 22;

[0068] The temperature detection unit 11 is used to output the information that the current temperature is less than or equal to the temperature threshold or greater than the temperature threshold to the selection unit 12;

[0069] The selection unit 12 is used to output the first signal when the sub-pixel row position currently driven and displayed is the first row of sub-pixels, or when the current temperature is less than or equal to the temperature threshold; output a second signal when the current temperature is greater than the temperature threshold for sub-pixels ...

Embodiment 2

[0081] In this embodiment, a high-voltage driving clock signal is output according to the position of the sub-pixel row currently being driven and displayed.

[0082] Such as Figure 9 As shown, in this embodiment, the logic control unit 22 is further configured to control the power switching unit 21 when the current drive display sub-pixel row position provided by the timing controller 10 is the first row of sub-pixels. The output is a high-voltage driving clock signal group input at a high level; according to the timing controller 10 provided by the timing controller 10, when the current driving and displaying sub-pixel row position is a sub-pixel in other rows except the first row of sub-pixels, control the power switching unit 21 The output is a low-level input high-voltage drive clock signal group.

[0083] When the position of the sub-pixel row displayed by the current drive is the first row of sub-pixels, select the high-voltage drive clock signal group with high-level...

Embodiment 3

[0087] In this embodiment, a high voltage driving clock signal is output according to the current temperature information.

[0088] Such as Figure 10 As shown, the timing controller 10 includes a temperature detection unit 11;

[0089] The temperature detection unit 11 is used to output the information that the current temperature is less than or equal to the temperature threshold or greater than the temperature threshold;

[0090] The logic control unit 22 is further configured to: according to the information that the current temperature provided by the temperature detection unit 11 is less than or equal to the temperature threshold, control the output of the power switching unit 21 to be a high-voltage drive clock signal group with a high-level input; The information provided by the temperature detection unit 11 that the current temperature is greater than the temperature threshold controls the output of the power switching unit 21 to be a high-voltage drive clock signal ...

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Abstract

The invention discloses a display driving device and method, a shifting register and a display device. The display driving device comprises a time schedule controller and the shifting register, wherein the shifting register comprises a logical control unit and a power switching unit which are connected with each other; the power switching unit is configured with more than one group of high-voltage driving clock signals; the logical control unit is used for controlling the power switching unit to select and output one group of the more than one group of high-voltage driving clock signals according to a sub-pixel line position displayed by a current driver and / or current temperature information provided by the time schedule controller to serve as the high-voltage driving clock signal of the shifting register. By adopting the display driving device and method, the shifting register and the display device in the embodiment of the invention, proper high-voltage driving clock signals can be selected specific to different conditions, and the problem of defective grating line caused by insufficient charging is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display driving device and method, a shift register and a display device. Background technique [0002] In recent years, with the vigorous development of semiconductor technology, portable electronic products and flat panel display products are also emerging. Moreover, thin film transistor (TFT, Thin Film Transistor) liquid crystal display has gradually become a standard output device for various data products due to its advantages of low operating voltage, no radiation scattering, light weight, and small size. A TFT liquid crystal display is generally composed of a matrix of pixels arranged in both horizontal and vertical directions. When a TFT liquid crystal display is displayed, a gate input signal is generated through a shift register, and each row of pixels is scanned sequentially from the first row to the last row. When designing a TFT liquid crystal display, it is nece...

Claims

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Application Information

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IPC IPC(8): G09G3/36G11C19/28
CPCG09G3/3696G09G2310/0286G11C19/28
Inventor 郑亮亮金婷婷
Owner BOE TECH GRP CO LTD
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