Self-adaptive multi-region common voltage regulation system and method

摘要

The present disclosure discloses a system of self-adaptively adjusting Multi-area common voltage, comprising a plurality of photosensitive devices, for sensing luminous quantity from the different areas so as to obtain and transmit flicker values corresponding to the different areas; a multiplexing element, connected with the plurality of photosensitive devices; a calculation and comparison unit, for continuously receiving the flicker values which are sensed by the plurality of photosensitive devices in a time sequence, calculating actual display condition, and comparing the actual display condition with an optimal display condition; and an common voltage adjusting and outputting unit, connected with the calculation and comparison unit, for adjusting the value of the current output common voltage if the optimal display condition is not met and remaining the value of the current output common voltage unchanged if the optimal display condition is met. The present disclosure can achieve automatically adjustment of the common voltage and thus increase the productivity.

主权项

1. A system of self-adaptively adjusting Multi-area common voltage, comprising:
a plurality of photosensitive devices, arranged near different areas of a display panel, for sensing luminous quantity from the different areas so as to obtain and transmit flicker values corresponding to the different areas; a multiplexing element, connected with the plurality of photosensitive devices, for receiving the flicker values transmitted by the plurality of photosensitive devices and transmitting one of the flicker values at one moment; a calculation and comparison unit, for continuously receiving the flicker values which are sensed by the plurality of photosensitive devices and transmitted by the multiplexing element in a time sequence, calculating actual display condition determined by the plurality of flicker values, and comparing the actual display condition with an optimal display condition, so as to judge whether the optimal display condition is met or not; and a common voltage adjusting and outputting unit, connected with the calculation and comparison unit, for adjusting the value of the current output common voltage if the optimal display condition is not met, and remaining the value of the current output common voltage unchanged if the optimal display condition is met; wherein different areas of the display panel are assigned different weights, and the actual display condition determined by the plurality of flicker values is calculated according to the weights, wherein the actual display condition is calculated according to the following equation:J=∑i=0M⁢Wi×FLICKERi wherein J represents the display condition, Wi represents the weight of area i, FLICKERi represents the flicker value corresponding to area i, and M represents the number of the areas formed by dividing the display panel.