US 10,311,772 B2 · Signal supply circuit and display device

Abstract

According to an embodiment, in a display device, pixels have memories respectively. A signal supply circuit includes a mode control circuit, and switches into a first mode or a second mode to supply digital data pieces to sub-pixels. In the first mode, the circuit receives from the outside first video data pieces corresponding to n sub-pixels, and supplies digital data pieces for the n sub-pixels to corresponding memories. In the second mode, the signal supply circuit receives from the outside second video data pieces corresponding to m sub-pixels fewer than n sub-pixels, and supplies digital data pieces for the n sub-pixels to corresponding memories based on the second video data pieces.

Claims20

Dependent claims

A signal supply circuit which is used in a display device where pixels have memories respectively, comprising:

a mode control circuit which controls an operation mode, wherein
the mode control circuit selectively changes the signal supply circuit between a first mode and a second mode in order to supply digital data pieces for sub-pixels to the respective memories,
the first mode is a mode to receive first video data pieces for n sub-pixels externally received, and to supply n digital data pieces for the n sub-pixels to the respective memories of the n sub-pixels based on the first video data pieces, and
the second mode is a mode to receive second video data pieces for m sub-pixels fewer than the n sub-pixels externally received, and to supply n digital data pieces for the n sub-pixels to the respective memories of the n sub-pixels based on the second video data pieces.

1 more element

A display device comprising:

pixels, each comprising sub-pixels,
a signal supply circuit supplying digital data pieces to the respective sub-pixels,
memories arranged in the respective sub-pixels each supplied a corresponding one of the digital data pieces, and
pixel electrodes, each supplied electric potential caused by one of the digital data pieces stored in a corresponding one of the memories,
the signal supply circuit having a first mode and a second mode,
the first mode is a mode to receive first video data pieces for n sub-pixels externally received, and to supply n digital data pieces for the n sub-pixels to the respective memories of the n sub-pixels based on the first video data pieces, and
the second mode is a mode to receive second video data pieces for m sub-pixels fewer than the n sub-pixels externally received, and to supply n digital data pieces for the n sub-pixels to the respective memories of the n sub-pixels based on the second video data pieces.

4 more elements

Dependencies are inferred from the claim text.

Signal supply circuit and display device

Life of this patent

Signal supply circuit and display device

Life of this patent

Abstract

Claims20