Method, device, system, and display device for adjusting luminance viewing angle of liquid crystal display panel

A device for adjusting a luminance viewing angle of a liquid crystal display panel, comprising:

• a luminance viewing angle detection unit configured to detect a luminance viewing angle of a liquid crystal display panel according to a brightness value of a current image of the liquid crystal display panel, so as to obtain an actual value of the luminance viewing angle corresponding to the current image;
• a relation confirmation unit configured to adjust a positive and negative polarity driving voltage of the liquid crystal display panel according to a preset step size when the actual value of the luminance viewing angle is less than a threshold value of the luminance viewing angle, so as to obtain a relational expression between the positive and negative polarity driving voltage and the luminance viewing angle;
• a voltage value calculation unit configured to process a difference value between the actual value of the luminance viewing angle and the threshold value of the luminance viewing angle according to the relational expression between the positive and negative polarity driving voltage and the luminance viewing angle, so as to obtain a target driving voltage value of the positive and negative polarity driving voltage;
• and
• a luminance viewing angle adjustment unit configured to adjust the positive and negative polarity driving voltage of the liquid crystal display panel according to the target driving voltage value.

A system for adjusting a luminance viewing angle of a liquid crystal display panel, wherein the system comprises a controller configured to be connected to the liquid crystal display panel, the controller is configured to perform following steps:

• detecting a luminance viewing angle of the liquid crystal display panel according to a brightness value of a current image of the liquid crystal display panel, so as to obtain an actual value of the luminance viewing angle corresponding to the current image;
• when the actual value of the luminance viewing angle is less than a threshold value of the luminance viewing angle, adjusting a positive and negative polarity driving voltage of the liquid crystal display panel according to a preset step size, so as to obtain a relational expression between the positive and negative polarity driving voltage and the luminance viewing angle;
• according to the relational expression between the positive and negative polarity driving voltage and the luminance viewing angle, processing a difference value between the actual value of the luminance viewing angle and the threshold value of the luminance viewing angle to obtain a target driving voltage value of the positive and negative polarity driving voltage;
• and
• adjusting the positive and negative polarity driving voltage of the liquid crystal display panel according to the target driving voltage value.