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Driving method for light emitting device

A driving method and technology of light-emitting devices, applied in electroluminescent light sources, instruments, light sources, etc., can solve problems such as image blur, brightness deviation, and image display quality deterioration

Inactive Publication Date: 2007-09-12
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This problem causes brightness deviations between adjacent pixels and produces image blur when displaying images, deteriorating image display quality

Method used

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  • Driving method for light emitting device
  • Driving method for light emitting device
  • Driving method for light emitting device

Examples

Experimental program
Comparison scheme
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no. 1 example

[0038] Fig. 4 is a pixel circuit diagram of a light emitting device.

[0039] In the pixel circuit 200 of the light emitting device, the light emitting part D is formed in a crossing area of ​​a plurality of data lines Data[1] to Data[m] and a plurality of scan lines Scan[1] to Scan[n] crossing each other.

[0040] In this light emitting device, sub-pixels (not shown) constituted by a first electrode, a light emitting portion, and a second electrode are formed on a substrate, and a plurality of pixel groups form a pixel portion for display. The pixel portion formed on the substrate is sealed by a protective substrate and protected from moisture or oxygen. The light emitting layer of the light emitting part may be formed of an organic material or an inorganic material, and it may be provided in a back surface light emitting type, a front surface light emitting type, and a double surface light emitting type according to a light emitting direction.

[0041] Data lines and scan l...

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PUM

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Abstract

A driving method for a light emitting device according to the present invention comprises inputting a scan signal to a pixel comprising two and more sub-pixels formed between data lines and scan lines through the scan lines; and inputting data signals to the two and more sub-pixels so that at least one of the data signals inputted through the data lines has the start point and end point different from at least one of the others.

Description

technical field [0001] The invention relates to a driving method of a light emitting device. Background technique [0002] A light emitting device used for a light emitting display is a self-luminous device in which a light emitting layer is formed between two electrodes. The light emitting device can be classified into an inorganic light emitting device and an organic light emitting device according to the material from which it is made. In addition, light emitting devices can also be classified into passive matrix type and active matrix type according to the driving method of the light emitting layer thereof. [0003] FIG. 1 is a cross-sectional view of a conventional organic light emitting device. [0004] In a conventional organic light-emitting device 100 as shown, an anode 20 made of a transparent material is formed on a substrate 10, and a hole injection layer and a hole transport layer 30 are deposited on the anode 20. material, an electron injection layer and an ...

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
CPCG09G3/2014G09G3/2003G09G3/3208G09G2300/0452G09G2300/06G09G2310/0275G09G2310/08G09G2320/0209G09G2330/025G09G3/30G09G3/32
Inventor 李在度
Owner LG ELECTRONICS INC