Display device and display driver
A display driver and display device technology, applied to static indicators, instruments, etc., can solve the problems of data signal difficulties, affect the writing speed of data signals, increase the delay of data signals, etc.
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Embodiment 1
[0042] Please refer to figure 2 , the display device includes a panel (not shown in the figure), a pixel matrix 110, a scan driver 120, a display driver 130 and a controller 140, the panel can be a glass or plastic substrate, the pixel matrix 110 is usually fabricated on the panel, the scan driver 120, The display driver 130 and the controller 140 can be designed outside the panel or fabricated on the panel.
[0043] The pixel matrix 110 includes N scanning lines 111 arranged along the first direction, M data lines 112 arranged along the second direction and N×M pixel units, where N and M are positive integers equal to or greater than 1. Each scan line 111 is connected to an output end of the scan driver 120 , each data line 112 is also connected to an output end of the display driver 130 , and each pixel unit 113 is connected to its corresponding scan line 111 and data line 112 . Taking an AMOLED display as an example, a traditional pixel unit 113 such as image 3 As shown, ...
Embodiment 2
[0071] Please see Figure 14 , in this embodiment, the display signal generating module 133 does not use the third switch M3, but the buffer has an enable signal input. When in the first period, the buffer is disabled by the enable signal, the output of the buffer is in a high-impedance state, until the second period, the buffer is enabled by the enable signal.
Embodiment 3
[0073] In this embodiment, the selection of the length of the first period is not only determined by the controller according to the comparison result of the previous digital display signal and the currently input digital display signal, but also the voltage and data output by the digital-to-analog converter 1331 can be compared by a comparator. The voltage on the line is used to determine the length of the first period. Please see Figure 15 , 16 , the display signal generation module 133 also includes a comparator 1335, the first input terminal of the comparator 1335 is used to input the current analog display signal converted by the digital-to-analog converter 1331, specifically it can be connected to the output terminal of the analog-to-digital converter, the comparator The second input end of the comparator 1335 is connected to the data line, and the output end of the comparator 1335 is connected to the precharge circuit control unit 1334 . In this case, the display sig...
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