Method for driving dual-media display panel, and electronic device and display system using the same

An electronic device adapted to driving a dual-media display panel, comprising:

• a memory;
• and
• a processor, coupled to the memory, configure to:
• obtain a display data;
• generate a first driving signal for driving a transparent display panel of the dual-media display panel in response to the display data;
• and
• generate a second driving signal for driving a light-shielding display panel of the dual-media display panel in response to the display data, which comprising:
• obtaining a display-unit grayscale value for the display data;
• determining whether the display-unit grayscale value falls within a grayscale value interval, wherein the grayscale value interval, comprised in a maximum grayscale range, is between an upper limit and a lower limit of the grayscale value interval;
• when the display-unit grayscale value is less than the lower limit, using a driving signal adapted to enabling the light-shielding display panel to display a black color as the second driving signal;
• and
• when the display-unit grayscale value is greater than the upper limit, using a driving signal adapted to enabling the light-shielding display panel to display a white color as the second driving signal.

A display system, comprising:

• a video source configured to provide a display data;
• a transparent display panel;
• a light-shielding display panel stacked on the transparent display panel;
• and
• an electronic device, coupled to the video source, the transparent display panel and the light-shielding display panel, configured to drive the transparent display panel and the light-shielding display panel, comprising:
• a memory;
• and
• a processor coupled to the memory and configured to:
• obtain the display data;
• generate a first driving signal for driving the transparent display panel in response to the display data;
• and
• generate a second driving signal for driving the light-shielding display panel in response to the display data, which comprising:
• obtaining a display-unit grayscale value for the display data;
• determining whether the display-unit grayscale value falls within a grayscale value interval, wherein the grayscale value interval, comprised in a maximum grayscale range, is between an upper limit and a lower limit of the grayscale value interval;
• when the display-unit grayscale value is less than the lower limit, using a driving signal adapted to enabling the light-shielding display panel to display a black color as the second driving signal;
• and
• when the display-unit grayscale value is greater than the upper limit, using a driving signal adapted to enabling the light-shielding display panel to display a white color as the second driving signal.