Display device having a normal mode and an eye protection mode and method for driving same

摘要

A display device includes a display panel, a panel driving circuit, and a control circuit. The panel driving circuit receives image data and converts the image data into output driving voltages for the display panel. The image data include original red image data, original green image data, and original blue image data. When the display device enters an eye protection mode for protecting eyes of a user, the original blue image data is modified by the panel driving circuit to reduce the gray levels of the original blue image data.

主权项

1. A display device, comprising:
a display panel having a plurality of red pixels, green pixels, and blue pixels; a panel driving circuit including a gray level correction circuit and a data driving circuit, the panel driving circuit receiving image data including original red image data corresponding to the red pixels, original green image data corresponding to the green pixels, and original blue image data corresponding to the blue pixels, and converting the image data into output driving voltages for the display panel; a control circuit outputting a first control signal to the panel driving circuit to switch the display device from a normal mode to an eye protection mode; wherein the original blue image data is modified by the gray level correction circuit, and a plurality of blue pixel driving voltages are provided to the blue pixel by the data driving circuit according to the corrected blue image data when the display device is in the eye protection mode; and wherein the gray levels of the blue pixels driven according to the corrected blue image data in the eye protection mode are lower than the gray levels of the blue pixels driven according to the original blue image data; wherein the display device further comprises a sensing circuit sensing a used time of the display device, and when the used time of the display device is over a determined time, the control circuit outputs the first control signal; and wherein the sensing circuit comprises an eyeball tracking unit outputting a tracking signal and a timer circuit calculating the used time of the display device according to the tracking signal.