Gamma voltage generator, display device, and driving method of display panel

A display device, comprising:

• a display panel, configured to display an image;
• and
• a gamma voltage generator, electrically connected to the display panel, and configured to supply a gamma voltage to the display panel to drive the display panel to display the image;
• wherein a method of the gamma voltage generator driving the display panel comprises:
• providing a sample panel;
• performing an aging experiment test for the sample panel to acquire a first gamma voltage corresponding to a first time period and a second gamma voltage corresponding to a second time period of the sample panel after being turned on;
• writing the first gamma voltage and the second gamma voltage to the gamma voltage generator;
• and
• in response to a turning-on operation of the display panel, the gamma voltage generator determining a current operating phase of the display panel and outputting the first gamma voltage or the second gamma voltage corresponding to the current operating phase to the display panel to drive the display panel to display an image;
• wherein the performing an aging experiment test for the sample panel to acquire the first gamma voltage corresponding to a first time period and the second gamma voltage corresponding to a second time period of the sample panel after being turned on comprises:
• turning on the sample panel to enable the sample panel to be in a bright screen state;
• debugging the gamma voltage in the first time period after the sample panel is turned on to acquire the first gamma voltage and a first digital signal corresponding to the first gamma voltage while the sample panel reaches a target luminance;
• and
• debugging the gamma voltage in the second time period after the sample panel is turned on to acquire the second gamma voltage and a second digital signal corresponding to the second gamma voltage when the sample panel reaches the target luminance.