Display device and driving method of display device
AssigneeSamsung Display Co., Ltd.
InventorsHong-Kyu Kim, Myeong Su Kim, Po-Yun Park, Gwang Soo Ahn
Life of this patent
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Abstract
A display device includes a display panel including: a plurality of pixels; and a signal controller which generates, on a frame-by-frame basis, a display signal based on an input image signal and a control signal from an outside. The signal controller includes a memory which stores a preset image signal, a receiver which receives the control signal, a clock signal modulator which generates an internal clock signal having a first frequency during a blank period, which is determined based on the control signal in a frame period, and a data processor which reads the preset image signal from the memory in response to the internal clock signal for an image processing.
Claims17
A display device comprising:
- a display panel including a plurality of pixels;
- and
- a signal controller which generates, on a frame-by-frame basis, a display signal based on an input image signal and a control signal from an outside,
- wherein the signal controller comprises:
- a memory which stores a preset image signal,
- a receiver which receives the control signal, wherein an active period is a period in which the control signal is varied between an enable level and a disable level in a frame period, and a blank period is a period in which the control signal is sustained at the disable level in the frame period,
- a clock signal modulator which generates an internal clock signal having a first frequency during the blank period, and
- a data processor which performs an image processing for the input image signal in the active period, reads the preset image signal from the memory during the blank period in response to the internal clock signal and performs the image processing for the preset image signal during the blank period,
- wherein image data, in which the preset image signal is image-processed, is not output from the signal controller during the blank period, and image data, in which the preset image signal is image-processed during the active period, is output from the signal controller during the active period.
A driving method of a display device including a display panel and a signal controller, the method comprising:
- receiving a control signal from an outside by the signal controller;
- determining a blank period in a frame period by the signal controller based on the control signal;
- generating an internal clock signal having a first frequency by the signal controller during the blank period;
- and
- reading a preset image signal from a memory of the signal controller during an active period and the blank period in response to the internal clock signal by the signal controller and performing an image processing for the preset image signal by the signal controller during the active period and the blank period,
- wherein image data, in which the preset image signal is image-processed, is not output from the signal controller during the blank period, and image data, in which the preset image signal is image-processed during the active period, is output from the signal controller during the active period.
Dependencies are inferred from the claim text.