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Backlight control method and device
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A technology of backlight control and backlight value, which is applied in the field of TV and can solve problems such as poor picture display effect
Inactive Publication Date: 2015-11-18
TCL OVERSEAS ELECTRONIC (HUIZHOU) CO LTD
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The defect of this adjustment method is that if the backlight value before adjustment is quite different from the backlight value after adjustment, the terminal will output a strong flickering picture, resulting in poor picture display effect
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no. 1 example
[0061] Further, refer to figure 2 Based on the first embodiment of the backlight control method of the present invention, in the second embodiment of the backlight control method of the present invention, the above step S30 includes:
[0062] Step S31, according to O(t)=Kp*e t Calculate the increment O(t) of the backlight value at the current time t, where Kp is the proportional coefficient, and e t Is the difference between the target backlight value and the current backlight value when adjusted at the current time t;
[0063] Step S32: Perform backlight adjustment according to the increment O(t) of the backlight value.
[0064] In this embodiment, the above t represents the adjustment time. Specifically, the backlight value can be adjusted once every preset interval. When the adjustment is achieved at the corresponding adjustment time t, it will be based on the difference between the target backlight value corresponding to the current time t and the current backlight value e t Mul...
no. 5 example
[0075] Further, refer to Figure 5 , A fifth embodiment of the backlight control method of the present invention is proposed. In this embodiment, the foregoing backlight control method further includes:
[0076] Step S50, preset the time interval between two adjacent adjustments; when the time for backlight adjustment is reached, the above step S10 is executed.
[0077] In this embodiment, the time length of the aforementioned time interval can be set according to actual needs, and is not further limited here. Specifically, each time interval can adopt the same value. And after each time adjustment, you need to wait for the next time to arrive before you can adjust the backlight.
[0078] The present invention also provides a backlight control device, with reference to Image 6 In the first embodiment of the backlight control device of the present invention, the backlight control device includes:
[0079] The obtaining module 10 is used to obtain the current backlight value of the te...
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Abstract
The invention discloses a backlight control method. The backlight control method comprises the steps of: obtaining a current backlight value of a terminal and a preset object backlight value; calculating the difference between the object backlight value and the current backlight value; carrying out backlight adjustment according to the difference and a preset proportion coefficient so as to enable the adjusted backlight value to be between the current backlight value and the object backlight value; and setting the adjusted backlight value as the current backlight value, and carrying out backlight adjustment at the next moment. The invention further discloses a backlight control device. According to the invention, the display effect of frames is improved.
Description
Technical field [0001] The present invention relates to the technical field of televisions, in particular to a backlight control method and device. Background technique [0002] At present, with the implementation of energy efficiency standards in various countries, algorithms for dynamic calculation and backlight control are adopted on display terminals to meet energy-saving requirements. The traditional dynamic backlight control algorithm mainly calculates the target backlight value according to the brightness of the signal source and the brightness of the surrounding environment, and then adjusts the backlight value of the display terminal to the target backlight value. The disadvantage of this adjustment method is that if the backlight value before adjustment is significantly different from the adjusted backlight value, the terminal will output a strong flashing animation, resulting in poor screen display effect. [0003] The foregoing content is only used to assist in underst...
Claims
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