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Display device, apparatus for compensating degradation and method thereof

A display device and degradation technology, applied in static indicators, instruments, etc., can solve problems such as pixel degradation and pixel brightness degradation, and achieve the effects of reducing power consumption, compensating for degradation, and improving image quality

Active Publication Date: 2014-05-14
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Deterioration of organic light-emitting diodes (OLEDs) and thin-film transistors degrades pixels, and degradation of pixels degrades brightness of pixels
When a predetermined voltage is applied to a pixel, the current flowing to the pixel decreases due to the deterioration of the organic light emitting diode (OLED) and the thin film transistor, and the brightness of the pixel degrades

Method used

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  • Display device, apparatus for compensating degradation and method thereof
  • Display device, apparatus for compensating degradation and method thereof
  • Display device, apparatus for compensating degradation and method thereof

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Embodiment Construction

[0048] Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand. However, the present invention can be implemented in various ways and is not limited to the following embodiments.

[0049] Also, in the exemplary embodiments, since the same reference numerals designate the same elements having the same configuration, the first exemplary embodiment will be representatively described, and in the other exemplary embodiments, only the same elements as the first will be described. Different configurations of an exemplary embodiment.

[0050] Parts irrelevant to the specification will be omitted in order to clearly describe the present invention, and the same elements will be denoted by the same reference numerals throughout the specification.

[0051] Throughout the specification and the appended claims, when it is described that an element is ...

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Abstract

The present invention discloses a display device, an apparatus for compensating degradation and a method thereof. The display device includes: a plurality of pixels; a degradation compensator for using a temperature weight value for a reference temperature, a luminance weight value for a reference luminance, and a material weight value for a reference material, for calculating a reference using time when a degradation rate of the pixels is changed to a reference degradation rate of a reference degradation curve, and for generating a control variable according to the reference using time; and a power supply for controlling a voltage difference between a first power source voltage for supplying a driving current to the pixels and a second power source voltage according to the control variable.

Description

technical field [0001] The present invention relates to a display device, a degradation compensation device and a degradation compensation method. More specifically, the present invention relates to a display device, a degradation compensation device, and a degradation compensation method for compensating for degradation of light emitting elements. Background technique [0002] Organic light emitting diode (OLED) displays use organic light emitting diodes (OLEDs) to control brightness by current or voltage, and use thin film transistors to drive the organic light emitting diodes. An organic light emitting diode (OLED) includes an anode layer and a cathode layer for forming an electric field, and an organic light emitting material emitting light through the electric field. Thin film transistors are classified into amorphous silicon thin film transistors (amorphous silicon TFTs), low temperature polysilicon (LTPS) thin film transistors, and oxide thin film transistors (TFTs) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/20G09G2320/041G09G2320/048G09G2320/0693G09G2360/16G09G3/3208G09G3/30
Inventor 全丙起金学善崔溶锡李柱亨朴钟雄安宝煐玄昌镐
Owner SAMSUNG DISPLAY CO LTD
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