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Signal processing device, signal processing method, display device, and electronic apparatus

A signal processing and equipment technology, applied in the field of display equipment and electronic devices, can solve the problems of different degrees of deterioration and achieve highly accurate aging correction effects

Inactive Publication Date: 2012-07-11
JOLED INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the organic EL element expresses gradation by changing the amount of light emitted in accordance with the image data to be displayed, the degree of deterioration of the organic EL element differs among individual pixel circuits

Method used

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  • Signal processing device, signal processing method, display device, and electronic apparatus
  • Signal processing device, signal processing method, display device, and electronic apparatus
  • Signal processing device, signal processing method, display device, and electronic apparatus

Examples

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Embodiment Construction

[0033] figure 1 is a conceptual diagram showing a configuration example of a display device according to an embodiment of the present disclosure. The display device 100 includes a burn-in correction unit 200 , a write scanner (WSCN: Write SCaNner) 410 , a horizontal selector (HSEL: Horizontal SELector) 420 , a drive scanner (DSCN: Driver SCaNner) 430 , and a pixel array unit 500 .

[0034] The pixel array unit 500 includes n m pixel circuits 600-608 (where n and m are integers of 2 or greater) arranged in a two-dimensional matrix. For convenience, in figure 1 Nine pixel circuits 600-608 arranged on the 1st, 2nd, and nth columns of the 1st, 2nd, and mth rows are shown in . The pixel circuits 600 - 608 are respectively connected to a write scanner (WSCN) 410 through a scan line (WSL: Write Scan Line) 411 . In addition, the pixel circuits 600-608 are respectively connected to the horizontal selector (HSEL) 420 through the data line (DTL: DaTa Line) 421, and connected to the dr...

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Abstract

A signal processing device comprises: a measuring unit used for measuring an actual luminance of a light-emitting device by setting levels of gradation values indicating the degree of light emission to a pixel circuit having the light-emitting device to generate measurement information; a gradation deterioration characteristics calculation unit used for calculating the gradation deterioration characteristics based on the measurement information and the relationship between a gradation value and a luminance value when the pixel circuit is in a correction reference state; a conversion efficiency deterioration value calculation unit used for converting a driving current supplied for a gradation value into a luminance to generate conversion efficiency deterioration characteristic information based on the gradation deterioration characteristics calculation and a conversion efficiency deterioration value of a light-emitting device conversion efficiency; and a current amount deterioration value calculation unit used for generating current amount deterioration characteristic information of the prescribed pixel circuit based on the gradation deterioration characteristics calculation and the current amount deterioration value regarding deterioration of a driving current of the pixel circuit.

Description

technical field [0001] The present disclosure relates to a signal processing device and method of correcting a deterioration component of a light emitting device for displaying an image, and a display device and an electronic device each including the signal processing device. Background technique [0002] A display device including a pixel unit in which a plurality of pixels are arranged in a matrix and controlling the pixel unit in accordance with image information to be displayed so as to display an image is well known. In recent years, display devices using self-luminous devices such as organic EL (Electro Luminescence) elements in pixel units have attracted attention. In such a display device, pixel circuits including organic EL elements are arranged in a matrix to form a display screen. However, since the organic EL element expresses gradation by changing the amount of light emitted in accordance with image data to be displayed, the degree of deterioration of the orga...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/32G09G5/10
CPCG09G2300/0842H01L51/50G09G2320/043G09G2320/029G09G2300/0866G09G3/20H04N5/66G09G2300/0819G09G3/30G09G5/10G09G2320/048G09G3/32G09G2300/0413G09G2360/145
Inventor 山下淳一内野胜秀
Owner JOLED INC
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