Display device and display method and encoding method using the same

A display method, applied to a display device comprising a display unit, wherein the display unit comprises a plurality of pixels arranged in a matrix and each of the pixels comprises a plurality of sub-pixels, the display method comprising:

• decoding a first set of the encoded RGB data stream of an encoded RGB data stream to produce a dimming control signal, wherein the encoded RGB data stream is provided to a display driver and used for driving the pixels of the display unit to display a frame, and the first set of the encoded RGB data stream corresponds to a row of pixels of the frame;
• transmitting the dimming control signal and the encoded RGB data stream to a backlight driver and the display driver;
• controlling brightness of a plurality of light emitting elements of a backlight module according to the dimming control signal;
• and
• driving the pixels of the display unit according to the encoded RGB data stream.

An encoding method, applied to an encoding device, comprising:

• producing a dimming control signal corresponding to an RGB data stream according to the RGB data stream, wherein the dimming control signal is provided to a backlight driver to control brightness of a plurality of light emitting elements of a backlight module, and the dimming control signal is binary data;
• resetting the least significant bit of each of a plurality of sub-pixel drive signals of a first set of the RGB data stream of the RGB data stream to zero, wherein the sub-pixel drive signals are binary data;
• and
• writing each of bits of the binary data of the dimming control signal into the least significant bit of each of the sub-pixel drive signals, respectively, to produce an encoded RGB data stream.

A display method, comprising:

• producing a dimming control signal corresponding to an RGB data stream according to the RGB data stream, wherein the dimming control signal is binary data;
• resetting the least significant bit of each of a plurality of sub-pixel drive signals of a first set of the RGB data stream of the RGB data stream to zero, wherein the sub-pixel drive signals are binary data;
• writing each of bits of the binary data of the dimming control signal into the least significant bit of each of the sub-pixel drive signals, respectively, to produce at least one encoded RGB data stream;
• decoding a first set of the encoded RGB data stream of the encoded RGB data stream to produce the dimming control signal, wherein the first set of the encoded RGB data stream corresponds to a row of pixels of a frame;
• transmitting the dimming control signal and the encoded RGB data stream to a backlight driver and a display driver;
• controlling brightness of a plurality of light emitting elements of a backlight module according to the dimming control signal;
• and
• driving a plurality of pixels of a display unit according to the encoded RGB data stream, wherein the pixels are arranged in a matrix.