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Light emitting device and driving method thereof

A technology of light-emitting devices and light-emitting time, which is applied in lighting devices, electroluminescent light sources, light sources, etc., and can solve problems such as crosstalk and deterioration of display characteristics

Inactive Publication Date: 2009-09-09
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the display characteristics of the organic electroluminescent device may be deteriorated due to the crosstalk phenomenon

Method used

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  • Light emitting device and driving method thereof
  • Light emitting device and driving method thereof
  • Light emitting device and driving method thereof

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Experimental program
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Embodiment Construction

[0040] Hereinafter, preferred embodiments of the invention will be explained in more detail with reference to the accompanying drawings.

[0041] Image 6 is a block diagram illustrating a light emitting device according to an embodiment of the present invention. Figure 7 is a circuit diagram schematically illustrating a scan driving circuit according to an embodiment of the present invention. Figure 8 is an example provided to Figure 7 Timing diagram of the switch control signals. Figure 9 is a circuit diagram illustrating a scan driving circuit according to another embodiment of the present invention. Figure 10 is an example provided to Figure 9 Timing diagram of the switch control signals.

[0042] The light emitting device according to one embodiment of the present invention includes an organic electroluminescence device, a plasma display panel, a liquid crystal display, and the like. Hereinafter, for convenience of description, the organic electroluminescent d...

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Abstract

The present invention relates to a light emitting device for preventing crosstalk phenomenon. The light emitting device includes a plurality of pixels and a scanning driving circuit. The pixel is formed in a crossing area of ​​the data line and the scan line. The scan driving circuit connects at least one scan line to a first voltage source with a first voltage during a first time, connects the scan line to a second voltage source with a second voltage during a second time, and The scan line is connected to a third voltage source having a third voltage for three periods of time. Here, the second voltage is a voltage between the first voltage and the third voltage. The light emitting device discharges the data line to the same level as the data current regardless of the precharging current, and thus the light emitting device does not exhibit a crosstalk phenomenon.

Description

technical field [0001] The present invention relates to a light emitting device and a method of driving the same, and in particular, to a light emitting device for preventing a crosstalk phenomenon and a method of driving the same. Background technique [0002] A light emitting device emits light having a certain wavelength. In particular, an organic electroluminescent device as the light emitting device itself is a light emitting device. [0003] figure 1 is a cross-sectional view schematically illustrating a pixel included in a general organic electroluminescent device. figure 2 is a circuit diagram schematically illustrating a passive matrix type organic electroluminescent device. image 3 is a timing chart illustrating the process of driving the organic electroluminescent device. [0004] exist figure 2 Among them, the organic electroluminescent device includes a plurality of pixels 10 . [0005] Each of the pixels 10 includes a positive electrode layer 2, a hole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B33/12H05B44/00
CPCG09G2310/0251G09G2320/0233G09G2320/0223G09G3/3216G09G3/3266G09G2310/0248G09G3/30G09G3/20
Inventor 金学洙李在度白收珍
Owner LG ELECTRONICS INC
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