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Display driving method, driving circuit and display

A driving method and display technology, applied in static indicators, instruments, etc., can solve problems such as easy moisture and LED lamp bead failure

Active Publication Date: 2021-04-02
XIAN QINGSONG PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a display screen driving method, drive circuit and display screen, to at least solve the technical problem in the prior art that the LED display screen is easy to get wet when it is not in use for a long time, leading to the failure of the LED lamp bead

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  • Display driving method, driving circuit and display
  • Display driving method, driving circuit and display
  • Display driving method, driving circuit and display

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] According to an embodiment of the present invention, an embodiment of a method for driving a display screen is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0038] figure 1 is a flow chart of a display driving method according to an embodiment of the present application, such as figure 1 As shown, the method includes the following steps:

[0039] Step S102 , when the display screen is in an off state, supply power to the lamp beads of the display screen according to a preset voltage, wherein the preset voltage is lower than the working voltage of the lamp beads.

[0040] When the display screen is off, there is no power consumption, and the display screen...

Embodiment 2

[0081] According to an embodiment of the present invention, an embodiment of a driving circuit for a display screen is provided. The driving circuit in this embodiment can execute the method for driving a display screen in Embodiment 1, which will not be repeated here. Figure 4 is a schematic diagram of a display drive circuit according to an embodiment of the present application, combined with Figure 4 As shown, the drive circuit includes:

[0082] A plurality of power supply channels, including a first power supply channel 41 and a second power supply channel 42, the first power supply channel is used to provide an operating voltage for the lamp bead, and the second power supply channel is used to provide a preset voltage for at least one lamp bead, and the preset voltage less than the working voltage;

[0083] The switch 43 is arranged between one pole of at least one lamp bead of the display screen and a plurality of power supply channels;

[0084] The controller 44 is...

Embodiment 3

[0109] According to an embodiment of the present invention, an embodiment of a driving method for another display screen is provided, Figure 5 is a flow chart of a display driving method according to an embodiment of the present application, such as Figure 5 As shown, the method includes the following steps:

[0110] Step S502, when the display screen is in the off state, supply power to the display module of the display screen according to a preset voltage, wherein the preset voltage is lower than the working voltage of the display module.

[0111] The above-mentioned display screen may be an LCD (Liquid Crystal Display, liquid crystal display), and the above-mentioned display module may include at least one of a display panel and a backlight module.

[0112] Since the control card of the display screen is provided with RAM (Random Access Memory, main memory), the RAM is used for directly exchanging data with the control chip on the display screen control card to control t...

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PUM

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Abstract

The invention discloses a display screen driving method, a driving circuit and a display screen. The method comprises the steps that when the display screen is in a closed state, power is supplied tolamp beads of the display screen according to preset voltage, and the preset voltage is smaller than the working voltage of the lamp beads. The technical problem that in the prior art, a display screen is prone to moisture under the condition that the display screen is not used for a long time, and consequently the display screen breaks down is solved.

Description

technical field [0001] The present invention relates to the field of displays, in particular to a display screen driving method, drive circuit and display screen. Background technique [0002] At present, the control circuit inside the LED display driver constant current chip is usually only designed according to the normal light emission of the LED, and the minimum value of the constant current is usually milliamp level IV ≥ 0.5mA. However, as LED display screens are more and more widely used, the unit pixel density of LED display screens is getting higher and higher, LED lamp beads are getting smaller and smaller, and the small size of the lamp tube makes the packaging material of the chip more and more susceptible to moisture, especially It is the LED display screens used in various enterprises and institutions. Often due to public festivals and holidays, the display screens are closed for a long time, resulting in moisture in the lamp beads and light-emitting chips, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/36
CPCG09G3/32G09G3/36
Inventor 梁植权
Owner XIAN QINGSONG PHOTOELECTRIC TECH CO LTD