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Organic electroluminescent device and driving method thereof

An electroluminescent device and device technology, applied in electroluminescent light sources, electric light sources, electrical components, etc., can solve problems such as screen suspension, and achieve the effect of preventing screen suspension.

Active Publication Date: 2007-03-21
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This screen hang occurs every time the brightness control data is changed

Method used

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  • Organic electroluminescent device and driving method thereof
  • Organic electroluminescent device and driving method thereof
  • Organic electroluminescent device and driving method thereof

Examples

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Embodiment Construction

[0030] With reference to the following drawings, the present invention will be understood more clearly based on the detailed description.

[0031] Fig. 3 is a diagram schematically showing an organic electroluminescence device according to an embodiment of the present invention. And, FIG. 4 is a timing chart showing scan signals provided to the pixels of FIG. 3. However, for ease of description, FIG. 3 describes the organic electroluminescent device as having a size of 4 (width)×4 (length).

[0032] In FIG. 3, an organic electroluminescent device according to an embodiment of the present invention includes a board 200, a scan driving circuit 210, a data storage part 220, and a data driving circuit 230.

[0033] The board 200 includes a plurality of pixels E11 to E44 formed on the emission areas that intersect the data lines D1 to D4 and the scan lines S1 to S4.

[0034] Each of the pixels E11 to E44 is formed with an anode layer, an organic layer, and a cathode layer, and emits li...

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PUM

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Abstract

The present invention relates to an organic electroluminescent device and a driving method thereof. The organic electroluminescent device according to the present invention includes a plurality of scan lines in a first direction, a plurality of data lines in a second direction different from the first direction, and a plurality of A pixel board, and a data drive circuit that drives the pixels according to display data and luminance control data input from an external device. The data driving circuit includes: a display data identification circuit that receives display data from a first external device of the external devices and a current generation circuit that receives brightness control data from a second external device of the external devices, and which controls the brightness Data and a data current according to the display data identified in the display data identification circuit are applied to the data lines. The organic electroluminescence device and the driving method thereof according to the present invention can prevent the screen hang phenomenon when the brightness control data is input by separating the lines for inputting the display data and the brightness control data.

Description

Technical field [0001] The invention relates to an organic electroluminescence device and a driving method thereof. In particular, the present invention relates to an organic electroluminescent device and a driving method thereof that can prevent a screen suspension phenomenon from occurring when the brightness of a pixel changes. Background technique [0002] An organic electroluminescent device is a device that emits light having a predetermined wavelength when a certain voltage is applied thereto. [0003] FIG. 1 is a diagram showing an organic electroluminescence device in the related art. [0004] In FIG. 1, the organic electroluminescence device in the related art includes a board 100, a scan driving circuit 110, a data storage part 120 and a data driving circuit 130. [0005] The board 100 includes a plurality of pixels E11 to E44 formed on the emission regions that intersect the data lines D1 to D4 and the scan lines S1 to S4. [0006] Each of the pixels E11 to E44 is for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/30G09G3/20H05B33/08H05B33/14H05B44/00
CPCG09G2320/0247G09G2320/0626G09G3/3216G09G3/30G09G3/20
Inventor 权炳翌
Owner LG DISPLAY CO LTD