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US 12,700,381 B1Granted
Multistable display with partial update mode
AssigneeGenetouch Corp.
InventorsCheng-Yu Chen, Ching-Lung Li, Chi Lee
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Abstract
A multistable display with a partial update mode refreshes partial image of a display panel unit without affecting a color difference of other pixels in the same row by outputting a pixel-electrode hold signal and a line-electrode hold signal to a pixel electrode and a line electrode corresponding to a holding pixel. Therefore, a problem of partial brightness and color difference caused by refreshing the partial image can be mitigated.
Claims10
A multistable display with a partial update mode, comprising:
- a timing controller circuit unit, generating a timing control signal;
- a display panel unit, comprising a plurality of pixel electrodes and a plurality of line electrodes;
- wherein each intersection crossed by each pixel electrode and each line electrode forms a respective pixel, and the pixels comprise a updating pixel and a holding pixel;
- a driver circuit unit, connected to the timing controller circuit unit and the display panel unit to receive the timing control signal, generating a plurality of pixel electrode driver signals to the pixel electrodes of the display panel unit, and generating a plurality of line electrode driver signals to the line electrodes of the display panel unit;
- wherein the timing control signal comprises a partial update control signal, a plurality of data signals, and a plurality of scan signals;
- wherein the data signals comprise a plurality of pixel waveform data, and the pixel waveform data respectively correspond to the pixel electrodes;
- wherein the scan signals comprise a plurality of line waveform data, and the line waveform data respectively correspond to the line electrodes;
- wherein the partial update control signal comprises a update control signal and a hold control signal, the update control signal corresponds to the pixel waveform data of the pixel electrode of the updating pixel and the line waveform data of the line electrode of the updating pixel, and the hold control signal corresponds to the pixel waveform data of the pixel electrode of the holding pixel and the line waveform data of the line electrode of the holding pixel;
- wherein the pixel electrode driver signals comprise a pixel electrode refreshing signal and a pixel-electrode hold signal, and the line electrode driver signals comprise a line electrode refreshing signal and a line-electrode hold signal;
- wherein the driver circuit unit outputs the pixel electrode refreshing signal to the pixel electrodes of the updating pixel, and outputs the line electrode refreshing signal to the line electrodes of the updating pixel;
- wherein the driver circuit unit outputs the pixel-electrode hold signal to the pixel electrodes of the holding pixel, and outputs the line-electrode hold signal to the line electrodes of the holding pixel;
- wherein a voltage difference between the pixel electrode refreshing signal and the line electrode refreshing signal on the updating pixel is greater than or equal to a threshold voltage required to change a pixel state.
9 more elements
Dependencies are inferred from the claim text.