Transmission device, display device, and display system

Patent metadata

Field	Value
Publication number	US-9818324-B2
Application number	US-201615062200-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Mar 7, 2016
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

Provided is a display system, including: a display device configured to display an image; and a transmission device configured to simultaneously transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame, the display device including: an overdrive processing unit configured to receive the first image data and the second image data transmitted from the transmission device, and to execute overdrive processing on the first image data based on the received first image data and the received second image data, to thereby generate display data; and a display panel configured to display an image based on the display data generated by the overdrive processing unit.

First claim

What is claimed is:

1. A display system, comprising:
a display device configured to display an image; and
a transmission device configured to simultaneously transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame,
the display device comprising:
an overdrive processing unit configured to receive the first image data and the second image data transmitted from the transmission device, and to execute overdrive processing on the first image data based on the received first image data and the received second image data, to thereby generate display data;
a display panel configured to display an image based on the display data generated by the overdrive processing unit;

wherein the transmission device is configured to generate overdrive image data of (A+B) bits such that the second image data is allocated to A bits and the first image data is allocated to B bits, to thereby transmit the generated overdrive image data to the display device,
wherein the overdrive processing unit is configured to execute the overdrive processing on the first image data based on the second image data and the first image data;
wherein the overdrive image data of (A+B) bits is set to satisfy A<B; and
wherein A and B are both integers.

2. The display system according system according to claim 1 ,
wherein the display panel comprises an in-vehicle panel installed on a vehicle, and
wherein the overdrive image data corresponds to an instrument cluster image of the in-vehicle panel.

3. The display system according to claim 1 ,
wherein the transmission device further comprises a specifying unit configured to specify an overdrive region, and
wherein the transmission device is configured to:
transmit, for the overdrive region specified by the specifying unit, the first image data and the second image data simultaneously to the display device; and
transmit, for a region other than the overdrive region, the first image data to the display device.

4. The display system according to claim 1 ,
wherein the transmission device further comprises a first transmission interface and a second transmission interface,
wherein the display device further comprises a first receiving interface and a second receiving interface,
wherein the display system further comprises a first transmission line configured to connect the first transmission interface and the first receiving interface to each other, and a second transmission line configured to connect the second transmission interface and the second receiving interface to each other, and
wherein the transmission device is configured to transmit the first image data to the display device via the first transmission line, and to transmit the second image data to the display device via the second transmission line.

5. A display system, comprising:
a display device configured to display an image; and
a transmission device configured to transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame,
the display device comprising:
an overdrive processing unit configured to receive the first image data and the second image data transmitted from the transmission device, and to execute overdrive processing on the first image data based on the received first image data and the received second image data, to thereby generate display data; and
a display panel configured to display an image based on the display data generated by the overdrive processing unit,

the transmission device further comprising a first transmission interface,
the display device further comprising a first receiving interface,
the display system further comprising a first transmission line configured to connect the first transmission interface and the first receiving interface to each other,
the transmission device being configured to, when the overdrive processing is not executed, transmit the first image data to the display device via the first transmission line at a first transfer speed, and when the overdrive processing is executed, transmit the first image data and the second image data to the display device via the first transmission line at a transfer speed twice as high as the first transfer speed.

6. A transmission device, which is configured to transmit image data to a display device,
the transmission device being configured to simultaneously transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame;
wherein the transmission device is configured to generate overdrive image data of (A+B) bits such that the second image data is allocated to A bits and the first image data is allocated to B bits, to thereby transmit the generated overdrive image data to the display device,
wherein the overdrive image data of (A+B) bits is set to satisfy A<B; and
wherein A and B are both integers.

7. The transmission device according to claim 6 , wherein the transmission device is configured to:
transmit, for a region having low grayscale characteristics, the overdrive image data of (A+B) bits to the display device; and
transmit, for a region having high grayscale characteristics, the first image data of (A+B) bits to the display device.

Assignees

• Panasonic Liquid Crystal Displ

Inventors

• Kawaguchi Seiji
• Itoman Tatsuo

Classifications

• G09G3/3648 Primary

  using an active matrix (G09G3/367 - G09G3/3696 take precedence) · CPC title

• G09G2340/16

  Determination of a pixel data signal depending on the signal applied in the previous frame · CPC title

• G09G2350/00

  Solving problems of bandwidth in display systems · CPC title

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title

• G09G2340/00

  Aspects of display data processing · CPC title