Patent ID: 11893948
Assignee: APPOTRONICS CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 0:
1. A display device, comprising:
a light source, configured to emit source light;
a control circuit, configured to control a drive current of the light source, wherein a modulation cycle of each frame of image to be displayed comprises a plurality of bit plane modulation periods and at least one pulse modulation period; and
a light modulation unit, configured to modulate the source light based on image data of the image to be displayed and light brightness of the light source, to obtain a modulated image;
wherein the drive current of the light source in each of the bit plane modulation periods is a rated operating current and the light brightness of the light source is L in periods other than the at least one pulse modulation period, and, in the at least one pulse modulation period, the drive current of the light source is an overshoot current higher than the rated operating current and the light brightness of the light source is M*L (M>1), such that average light brightness of the light source in the modulation cycle reaches a preset brightness.