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Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation

A non-linear equation and pixel technology, applied in the direction of static indicators, instruments, etc., can solve the problems of reducing screen contrast, screen color cast, loss of screen image details, etc., to achieve the goal of reducing color loss, prolonging service life, and beautiful visual experience Effect

Pending Publication Date: 2022-07-01
姜英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These common technologies have the disadvantages of losing the details of the real image on the screen, reducing the contrast of the screen and producing a color cast on the screen.

Method used

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  • Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation
  • Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation
  • Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation

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Experimental program
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Effect test

Embodiment 1

[0052] refer to figure 1 , a method for automatic screen energy saving using dynamic pixel dimming and nonlinear equations, including the following steps:

[0053] Step S1: perform color and conversion on the input color image, and convert the picture in the RGB color gamut into the data in the YUV color gamut;

[0054] Step S2: perform histogram statistics on the luminance Y channel converted in step S1, and the histogram vector after statistics is Hist_Y 1 , Hist_Y 1 The vector normalized to the [0, 65535] interval is Hist_Y 2 ;

[0055] Step S3: To Hist_Y 2 Perform correction processing to correct Hist_Y 2 becomes the desired curve vector Hist adjust ;

[0056] Step S4: solve the Hist obtained in step S3 adjust Normalize to L gray level, the normalized matrix is ​​Hist_L;

[0057] Step S5: Calculate Hist using formula (6) L The cumulative histogram of ;

[0058] Step S6: perform energy-saving processing on the OLED screen through the energy-saving formula (7);

...

Embodiment 2

[0062] refer to Figure 1-4 , on the basis of the first embodiment, it is another preferred embodiment of the same invention, using dynamic pixel dimming and nonlinear equation screen automatic energy-saving method, including the following steps:

[0063] Step S1: Perform color and conversion on the input color image, and convert the image in the RGB color gamut into data in the YUV color gamut

[0064] The color conversion formula is as follows

[0065]

[0066] Step S2: perform histogram statistics on the luminance Y channel converted in step S1, and the histogram vector after statistics is Hist_Y 1 , Hist_Y 1 The vector normalized to the [0, 65535] interval is Hist_Y 2 ;

[0067] Specifically, histogram statistics are performed on the luminance Y channel converted in step S1, and the statistics vector is Hist_Y 1 , according to formula (2), put Hist_Y 1 The vector of is normalized in the interval [0, 65535].

[0068]

[0069] Hist mas =MAX(Hist_Y 2 ) (3)

[...

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Abstract

The invention discloses an automatic energy-saving method for a screen by using dynamic pixel dimming and a nonlinear equation, which belongs to the field of screen energy saving and comprises the following steps of: S1, carrying out color conversion on an input color image, and converting an image of an RGB (Red, Green, Blue) color gamut into data of a YUV (Yttrium and Ultraviolet) color gamut; s2, histogram statistics is carried out on the brightness Y channel converted in the step S1, the histogram vector after statistics is HistY1, and the vector when HistY1 is normalized to the interval of [0, 65535] is HistY2; and S3, carrying out correction processing on the HistY2, and correcting the HistY2 to obtain an expected curve vector Histadjust. According to the invention, the color loss of the high-brightness area of the OLDE screen caused by energy saving can be effectively reduced, and details of the low-brightness area are not lost; the definition and the energy-saving strength of the screen are controlled through two control quantities, so that the service life of the OLDE screen can be better prolonged while energy is saved; the image quality of the image can be automatically adjusted in real time according to the content of the image, and more beautiful visual experience is presented.

Description

technical field [0001] The invention relates to the technical field of screen energy saving, in particular to an automatic energy saving method for a screen using dynamic pixel dimming and nonlinear equations. Background technique [0002] Organic Light Emitting Diode (OLED) displays are a new technology developed in recent years that offer brighter colors, better flexibility, wider viewing angles and faster response times than liquid crystal displays (LCDs). etc. advantages. Therefore, OLED screens are widely used in smart phones, smart wearables and smart TVs. With the popularity of OLED screens, many shortcomings of OLED screens have gradually emerged. When an OLED display displays a black image, the power consumption is almost zero, and when an OLED screen displays a white image, the power consumption may be more than twice that of a conventional LCDS. And the long-term high-brightness image operation shortens the service life of the OLED screen. Especially in the fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0242G09G2330/021
Inventor 姜英
Owner 姜英
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