Black frame voltage compensation method for data driver of OLED display
A data driver and voltage compensation technology, applied in the field of OLED displays, can solve the problems of affecting the display of the screen, rising, and unable to pull up the 255-level voltage of the black screen, so as to reduce the slight brightness of the screen, increase the tolerance, and increase the operating range. Effect
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[0026] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0027] First see Figure 4 As shown, the present invention discloses a black screen voltage compensation method for a data driver of an OLED display, which includes the following steps:
[0028] First, give a number of set point voltages, including the set point gray level 0, 63, 127, 191 and 255 levels, including the highest level voltage 255 level voltage, the lowest level voltage 0 level voltage and 63-step voltage, 127-step voltage and 191-step voltage between the highest-order voltage of 255-step voltage and highest-order voltage of 0-step voltage;
[0029] Then, a voltage curve 10 of the data driver is established based on the above set point voltage;
[0030] Next, the setting of the 255-level voltage of the highest-level voltage is independently generated from the voltage curve 10, so that when the 255-level voltage is adjusted, the voltage of other...
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