Driving method, driving device and waveform generator of electrophoretic display
An electrophoretic display and waveform generator technology, applied in the field of driving devices, waveform generators, and driving methods of electrophoretic displays, can solve problems such as reducing EPD display quality, and achieve the effects of improving response speed, reducing time length, and reducing ghost images.
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Embodiment 1
[0068] refer to figure 1 , shows a schematic flowchart of a specific embodiment of a method for driving an electrophoretic display in an embodiment of the present application. Such as figure 1 As shown, the driving method of the electrophoretic display in the embodiment of the present application includes the following specific steps:
[0069] S101. Refresh the grayscale of the original image to the initial grayscale.
[0070] In the original image, the spatial position distribution of the particles in each pixel is different, which makes each pixel appear different gray scales when the voltage is applied for the same driving time, and the display is driven to a uniform optical limit (black gray scale or white). Grayscale), which is beneficial to eliminate the residual image, and make the particles of each pixel in the same spatial position before the next stage of driving waveform. This stage is called the stage of erasing the original image.
[0071] S102. Acquire a volta...
Embodiment 2
[0087] The experiment adopts microcapsule EPD, and the experimental device is mainly divided into two parts: waveform editing system and data acquisition system. Among them, the work of the waveform editing system is mainly completed by the computer software LabVIEW, and the data acquisition system is composed of a driving power supply, a closed experiment box, a light source, a camera and a temperature controller.
[0088] The data acquisition system mainly collects the brightness value of the EPD display. Since the collection process is easily disturbed by external light, a closed experimental cabinet is required to prevent the interference of external light. The two light sources mainly provide the external light source required by the data acquisition system. In a confined space, the light environment provided by the internal light source is relatively stable, which provides good comparability for the driving effects of different e-paper driving waveforms. The electrophor...
Embodiment 3
[0112] refer to Figure 8 , shows a module block diagram of a specific embodiment of a driving device for an electrophoretic display in an embodiment of the present application. Such as Figure 8 As shown, the driving device of the electrophoretic display of the embodiment of the present application includes a data acquisition module and a waveform drive module; the data acquisition module is connected to the waveform drive module; the data acquisition module is used to record the brightness value of the electrophoretic display that changes with time; the waveform drive module Used to obtain the driving waveform, the driving waveform includes a first voltage signal, a second voltage signal and a third voltage signal; the first voltage signal is used to refresh the gray scale of the original image to the initial gray scale, and the second voltage signal is used to refresh the initial gray scale The grayscale is refreshed to the reference grayscale, and the third voltage signal...
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