Backlight driving power protection method and system, display device and storage medium

A technology for backlight drive and display equipment, applied to static indicators, instruments, etc., can solve problems such as damage to power devices, frequent actions of protection circuits, etc.

Pending Publication Date: 2022-01-28
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the protection circuit in the prior art operates frequently, so that th

Method used

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  • Backlight driving power protection method and system, display device and storage medium
  • Backlight driving power protection method and system, display device and storage medium
  • Backlight driving power protection method and system, display device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example one

[0046] like figure 1 , The present embodiment provides a backlight driving power protection method used in the backlight unit of the display device, the present power protection method includes the following steps:

[0047] Step S100, the total power value obtaining backlight unit.

[0048] Specific process, the backlight unit includes a plurality of light emitting chips; is the total power of the backlight unit of power values ​​and a plurality of light emitting chips.

[0049] like figure 2 As shown in the step S100 comprises:

[0050] Step S110, the luminance data of each of the acquired light emitting chip.

[0051] Particular process, chip light emitting chip is driven by backlight driver, receives the backlight luminance data driving chip and driving the corresponding light emitting chip emits light. Brightness control parameter data of the emission luminance of the light emitting chip, a positive correlation with the emission luminance.

[0052] Obtaini...

Example Embodiment

[0071] Example 2

[0072] like image 3 , In one embodiment based on the embodiment, based on the same inventive concept, the present invention also provides a backlight driving power protection system, wherein, comprising: a power acquiring module 10, a power comparison module 11, and to reduce the power module 12. The obtaining module 10 is configured to obtain the power of the backlight unit 40 of a total power value, wherein the backlight unit 40 includes a plurality of light emitting chips 41. The power module 11 for comparing the total power value with a preset power protection value. The power module 12 to reduce the total power when the power value is greater than a predetermined guard value, the light emitting chip 41 reduce the brightness, the backlight unit so that a total power value in the protection of the preset power value.

[0073] By the above-described embodiment, pre-set a power protection value of the power protection value less than the system protection thres...

Example Embodiment

[0074] Example three

[0075] like Figure 4 , In one embodiment based on the embodiment, based on the same inventive concept, the present invention further provides a display apparatus, including: a processor 20 (MCU), a backlight driver IC 31 (Mini LED Driver IC), and a backlight unit 40 (Mini LED linght Bar unit), the backlight unit 40 includes a plurality of light emitting chips 41 (Mini LED). The processor chip 20 and the backlight driving unit 31 composed of the backlight drive 30 (Mini LED Driver Unit), the processor 20 is connected to the backlight driver IC 31, and a backlight unit for obtaining a total power value and comparing the total 40 size of the power value with a preset value of power protection. The backlight driver IC 31 is connected to the backlight unit 40, and is used when the total power value is greater than a preset value of power protection, reduce the brightness of the light emitting chip 41, wherein the light emitting chip 41 and the total luminance val...

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Abstract

The invention discloses a backlight driving power protection method and system, a display device and a storage medium. The power protection method comprises the following steps of: acquiring a total power value of a backlight unit which comprises a plurality of light-emitting chips; comparing the total power value with a preset power protection value; and when the total power value is greater than the preset power protection value, reducing the brightness of the light-emitting chips, so as to make the total power value of the backlight unit less than the preset power protection value. The problem that in the prior art, a protection circuit acts frequently, so that a power device is started or closed frequently, high-load operation is caused, and damage is caused is solved.

Description

technical field [0001] The present invention relates to the technical field of display devices, in particular to a power protection method and system for backlight driving, a display device and a storage medium. Background technique [0002] At present, the existing backlight drive circuit and power supply have power protection. The power protection is a passive protection. The working principle of the passive protection is to detect the total power of the backlight drive. When the total power reaches the protection threshold, the protection circuit is triggered. The circuit shuts off the power supply of the entire light-emitting unit, so as to avoid damage to components due to excessive power. However, during the use of the display device, the total power is frequently too large, which will lead to frequent actions of the protection circuit, so that the power devices (such as light-emitting unit driver chips, light-emitting chips, etc.) Damage occurs, which in turn affects...

Claims

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Application Information

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IPC IPC(8): G09G3/34
CPCG09G3/3406G09G3/3413
Inventor 盘桥富周建华胡向峰黄德强杨文祥
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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