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Display equipment power consumption adjusting method and device

A display device and power consumption technology, applied to static indicators, instruments, etc., can solve the problems of increased power consumption, inability to realize dynamic adjustment, high power consumption, etc., and achieve the effect of saving system power consumption

Active Publication Date: 2020-04-03
THUNDERSOFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or adjust the image quality of the display screen in order to enhance the image quality, but in this process, additional power consumption will be added
Moreover, whether it is the process of backlight adjustment or image quality adjustment, there will be an algorithm operation process, which will also generate additional power consumption
[0003] Due to the higher and higher requirements for the image quality of the display screen, higher power consumption may be generated. However, the adjustment of power consumption is also a matter of great concern to users.
In the prior art, there is no comprehensive consideration of the above scenarios, and it is impossible to dynamically adjust the display screen in real time and limit the power consumption overhead

Method used

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  • Display equipment power consumption adjusting method and device
  • Display equipment power consumption adjusting method and device
  • Display equipment power consumption adjusting method and device

Examples

Experimental program
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Effect test

Embodiment approach 1

[0083] Such as figure 2 As shown, the abscissa in the histogram is the grayscale value, and the ordinate is the probability of the grayscale value of the pixel. Calculate the cumulative value of the grayscale probability value of the pixel corresponding to the grayscale value from the position of the minimum grayscale to the direction of the maximum grayscale value ;

[0084] judging whether the accumulated value corresponding to the current grayscale value exceeds a preset first threshold;

[0085] When the accumulated value corresponding to the current grayscale value exceeds the preset first threshold, it is determined that the current grayscale value is a feature value of the histogram of the image to be displayed.

[0086] For example: For a histogram with 8-bit wide precision, the histogram eigenvalue s can be calculated by the following formula 3):

[0087] Formula 3)

[0088] Wherein, S represents the current gray scale value, h(t) represents the probability of t...

Embodiment approach 2

[0091] Setting a plurality of different first thresholds, and calculating a plurality of histogram feature values ​​based on the method of Embodiment 1;

[0092] A weighted average is performed on the plurality of histogram feature values ​​to obtain the feature value of the histogram of the current frame to be displayed.

[0093] In this embodiment, due to the calculation of the eigenvalues ​​of the histogram of each frame in the prior art, there may be a problem that the eigenvalues ​​of the histogram change frequently. In order to solve this problem, this embodiment also limits the eigenvalues ​​of the histogram. width. For example, the minimum threshold K of the histogram feature value can be set min and the maximum threshold K max , the histogram eigenvalues ​​are limited by the minimum and maximum thresholds. If the histogram feature value is at the minimum threshold K min and the maximum threshold K max between, then determine the eigenvalue of the histogram to be ...

Embodiment approach

[0103] Formula 5) l dst =F(S,l)=l×S g ;

[0104] Among them, F is the backlight calculation model, l is the normalized input original backlight value, S is the normalized current frame histogram feature value, g is the curvature of the preset model, the larger the g is, the higher the nonlinearity is, and the screen When the brightness is higher, the change rate of the output backlight is smoother.

[0105] In this embodiment, the desired image enhancement lookup table may be expressed as an image enhancement lookup table that enables the display device to display the best image quality under the current backlight state.

[0106] Wherein, the desired image enhancement lookup table can be calculated in various ways, which are not limited in this embodiment.

[0107] Preferably, the following implementation manner of calculating the expected image enhancement lookup table can be provided:

[0108] Obtain the backlight value corresponding to the feature value of the histogram...

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Abstract

The invention discloses a display equipment power consumption adjusting method and device, and the method comprises the steps: reading a histogram of a to-be-displayed image of a current frame, and calculating the feature value of the histogram of the to-be-displayed image; obtaining an original backlight value, and calculating expected backlight and an expected image enhancement lookup table according to the original backlight value and the histogram feature value; adjusting the output backlight of the display equipment according to the expected backlight; adjusting the brightness of a to-be-displayed image according to the expected image enhancement lookup table; calculating a current algorithm power consumption model according to expected backlight and the expected image enhancement lookup table; and analyzing the algorithm power consumption model so as to adjust the working frequency required by the display equipment for picture display according to an analysis result. Therefore, the purpose of saving power consumption is achieved while a bright and easy-to-see display effect is provided for a user, namely, the purposes of dynamically adjusting a display picture in real time and limiting power consumption expenditure are achieved.

Description

technical field [0001] The invention relates to the field of power consumption adjustment, in particular to a method and device for power consumption adjustment of a display device. Background technique [0002] In the process of displaying the screen, the liquid crystal display device contains a variety of scenes to realize the display of the screen. Among them, the backlight module is used to provide illumination for the display. Generally, the brighter the backlight, the brighter the display screen, but the higher the power consumption, the backlight The darker it is, the display screen is relatively darker, but the power consumption is also lower. Alternatively, in order to enhance the image quality, the image quality of the display screen is adjusted, but in this process, additional power consumption will be added. Moreover, whether it is the process of backlight adjustment or image quality adjustment, there will be an algorithm operation process, which will also gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3406G09G3/36G09G2330/021
Inventor 田光亚
Owner THUNDERSOFT
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