SELF LIGHT EMITTING DISPLAY DEVICE, CONTROL METHOD OF SELF LIGHT EMITTING DISPLAY DEVICE AND COMPUTER PROGRAM

• US 20140176619A1
• Filed: 12/10/2013
• Published: 06/26/2014
• Est. Priority Date: 12/21/2012
• Status: Active Grant

• Current Assignee: JDI Design and Development GK
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yokoyama, Yuki, Inoue, Yasuo, Takizawa, Shinichi
• Granted Patent: US 9,142,158 B2
• Time in Patent Office: Days
• US Class Current: 345/690
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G09G 2320/0271 Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 2340/16 Determination of a pixel data signal depending on the signal applied in the previous frame
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]

Abstract

There is provided a self light emitting display device, including a variation detection unit configured to detect a variation of a video signal equal to, or greater than a predetermined threshold, a correction unit configured to correct an output level of the video signal based on the detection of the variation by the variation detection unit, and a video processing unit configured to perform a process with a predetermined time delay on the video signal supplied from the variation detection unit and configured to output the processed video signal to the correction unit.

Claims

1. A self light emitting display device comprising:

a variation detection unit configured to detect a variation of a video signal equal to or greater than a predetermined threshold;

a correction unit configured to correct an output level of the video signal based on the detection of the variation by the variation detection unit; and

a video processing unit configured to output the video signal to the correction unit by performing a process with a predetermined time delay on the video signal supplied from the variation detection unit.

2. The self light emitting display device according to claim 1,

wherein the variation detection unit detects the variation of the video signal by a plurality of the threshold value, and the correction unit corrects the output level of the video signal based on the detection of the variation per each of the threshold value.

3. The self light emitting display device according to claim 1,

wherein the video processing unit performs a video quality enhancement process on the video signal with a predetermined time delay.

4. The self light emitting display device according to claim 3,

wherein the video processing unit performs an interpolation process between frames of the video signal as the video quality enhancement process.

5. The self light emitting display device according to claim 1,

wherein the correction unit corrects the output level of the video signal so that the output level becomes equal to or below an upper limit of electric power that can be provided when a video is displayed based on the video signal.

6. A control method of a self light emitting display device comprising:

detecting a variation of a video signal equal to or greater than a predetermined threshold;

performing a process with predetermined time delay on the video signal and outputting the processed video signal; and

correcting the output level of the video signal which has been delayed for the predetermined time in the video processing step based on the detection of the variation performed in the variation detection step.

7. A computer program for causing a computer to execute:

detecting a variation of a video signal equal to or greater than a predetermined threshold;

performing a process with predetermined time delay on the video signal and outputting the processed video signal; and

correcting an output level of the video signal which has been delayed for the predetermined time in the video processing step based on the detection of the variation performed in the variation detection step.