JP2007164003A5

JP2007164003A5 -

Info

Publication number: JP2007164003A5
Application number: JP2005362542A
Authority: JP
Filing date: 2005-12-16
Publication date: 2008-12-11

Claims

A display panel in which dummy pixels are arranged outside the effective display area;
A luminance detection sensor for detecting the light emission luminance of the dummy pixels ;
A dummy pixel data calculation unit for calculating an average gradation value of the input display data ;
A dummy pixel data multiplexing unit that multiplexes the average gradation value as dummy pixel data with the input display data;
A light emission characteristic detecting unit for detecting a degree of decrease in the light emission characteristic based on the detection luminance of the dummy pixel;
As the rate of decrease in screen luminance is constant, the self-luminous display device which have a a lighting control unit for controlling the lighting of the light emitting device in accordance with the degree of decrease of the light emission characteristics of the dummy pixels.

The lighting control unit controls the lighting time length within one frame period.
The self-luminous display device according to claim 1.

The dummy pixel data multiplexing unit multiplexes a constant gradation value as a dummy pixel with the input display data at the actual measurement timing,
The luminance detection sensor detects the light emission luminance of the dummy pixel at the actual measurement timing of luminance deterioration.
The self-luminous display device according to claim 2.

The light emission characteristic detection unit detects a decrease rate of detected luminance with respect to initial luminance as the decrease degree,
The lighting control unit extends the lighting time length with respect to the initial lighting time length by the decrease rate.
The self-luminous display device according to claim 2.

The lighting control unit nonlinearly extends and controls the lighting time length so as to be inversely proportional to the degree of decrease.
The self-luminous display device according to claim 4.

The input display data is display data corrected so that the luminance deterioration amount of each pixel corresponding to the effective display area converges to the luminance deterioration amount of the reference pixel.
The self-luminous display apparatus as described in any one of Claims 1-5.

An image processing device for controlling a self-luminous display device equipped with a dummy pixel and a luminance detection sensor for detecting the luminance of the emitted light outside an effective display area,
A dummy pixel data calculation unit for calculating an average gradation value of the input display data;
A dummy pixel data multiplexing unit that multiplexes the average gradation value as dummy pixel data with the input display data;
A light emission characteristic detecting unit for detecting a degree of decrease in the light emission characteristic based on the detection luminance of the dummy pixel;
A lighting control unit that controls lighting of the light emitting element according to the degree of decrease in the light emission characteristics of the dummy pixels so that the rate of decrease in screen brightness is constant;
An image processing apparatus.

A lighting time length control device for controlling a self-luminous display device equipped with a dummy pixel and a luminance detection sensor for detecting the light emission luminance outside the effective display area,
A dummy pixel data calculation unit for calculating an average gradation value of the input display data;
A dummy pixel data multiplexing unit that multiplexes the average gradation value as dummy pixel data with the input display data;
A light emission characteristic detecting unit for detecting a degree of decrease in the light emission characteristic based on the detection luminance of the dummy pixel;
A lighting control unit that controls lighting of the light emitting element according to the degree of decrease in the light emission characteristics of the dummy pixels so that the rate of decrease in screen brightness is constant;
A lighting duration control device.

To a computer that controls a self-luminous display device equipped with a dummy pixel and a luminance detection sensor that detects the luminance of the emitted light outside the effective display area,
Processing for calculating the average gradation value of the input display data;
A process of multiplexing the average gradation value on the input display data as dummy pixel data;
A process for detecting the degree of decrease in the light emission characteristics based on the detected luminance of the dummy pixels;
A computer program for executing a process of controlling lighting of a light emitting element according to a degree of decrease in light emission characteristics of the dummy pixel so that a screen luminance decrease rate becomes constant .