Display device
AssigneeAppotronics Corporation Limited
InventorsChen Chen, Fei Hu, Xin Yu, Zuqiang Guo, Yi Li
Life of this patent
Estimating the term…
Abstract
A display device, including: a light source, used for emitting light source light; a control unit, used for controlling a drive current for the light source, the modulation period of each frame of image to be displayed comprising at least one pulse modulation period, and within the pulse modulation period, the drive current for the light source being an overshoot current so that the average luminous brightness of the light source in the modulation period reaches preset brightness; and a light modulation unit, used for modulating the light source light according to image data of the image to be displayed and the luminous brightness of the light source to obtain a modulated image.
Claims16
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.
Dependencies are inferred from the claim text.