Apparatus for boosting low gray level in display panel

摘要

The present invention relates to a low gray level boost device in the display panel, for example a PMOS transistor, load capacitor, LED, or the panel of the OLED element, in a display device having a drive IC for driving the panel, and a D / A converter for converting the data output by each channel of the drive IC to an analog signal, the D / provided with a boost switch, and the controller for controlling the boost switch connected to the output terminal of the A converter and, with the controller controls the boost switch in accordance with the current level output from the D / A converter, which controls the boost switch By controlling the operating time of the boost switch to set the variable boost the signal level, in addition to the boost time during charging of the load capacitor is provided in the inner panel, which is very useful inventors to represent a more accurate colors in low gray level.