Display device and display drive method

一种显示装置、驱动电压的技术，应用在静态指示器、仪器等方向，能够解决难以实现大型且高清晰的显示器等问题

Inactive Publication Date: 2010-02-24
NIPPON ORGANIC RIT DISPLAY KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the former has a simple structure, there is a problem that it is difficult to realize a large and high-definition display, so the development of the active matrix method is currently being widely carried out

Method used

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  • Display device and display drive method
  • Display device and display drive method
  • Display device and display drive method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Hereinafter, an example of a display device using an organic EL element will be described in the following order as an embodiment of the display device of the present invention.

[0029] [1. Configuration of Display Device of Embodiment]

[0030] [2. Pixel circuit operation in the process up to the present invention]

[0031] [3. Pixel circuit operation as an embodiment of the present invention]

[0032] [1. Configuration of Display Device of Embodiment]

[0033] figure 1 The overall structure of the display device of the embodiment is shown in . As will be described later, this display device includes a pixel circuit 10 having a function of compensating for variations in threshold voltage and mobility of driving transistors.

[0034] Such as figure 1 As shown, the display device of this example includes a pixel array unit 20 in which pixel circuits 10 are arranged in a matrix in the column direction and the row direction. In addition, 'R', 'G', and 'B' are added ...

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PUM

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Abstract

The display device according to the invention make the threshold value correction action for holding threshold value voltage of the drive transistor iin the hold capacitor to be proceeded for severaltimes, before providing signal value to the hold capacitor in the pixel circuir. In the several threshold value correction actions, for example in a first action, providing a positive acceleration potential to the gate electrode corresponding to a normal gate electrode-source electrode voltage, and then returing to the reference potential, and then the action of the gate electrode-source electrodevoltage being closing to the threshold value voltage is accelerated. Thereby, correction action is accelerated in elimination action of time divided threshold value voltage, and the correction periodis shortened.

Description

technical field [0001] The present invention relates to a display device having a pixel array in which pixel circuits are arranged in a matrix and a display driving method for the device, for example, to a display device using an organic electroluminescent element (organic EL element) as a light emitting element. Background technique [0002] [Patent Document 1] JP-A-2007-133282 (Japan) [0003] [Patent Document 2] JP-A-2003-255856 (Japan) [0004] [Patent Document 3] JP-A-2003-271095 (Japan) [0005] For example, as disclosed in the aforementioned Patent Documents 2 and 3, image display devices using organic EL elements for pixels are being developed. Since the organic EL element is a self-luminous element, it has advantages such as higher visibility of an image, no need for a backlight, and faster response speed than, for example, a liquid crystal display. In addition, the luminance level (tone) of each light emitting element can be controlled by the value of the curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G2300/0866G09G2310/06G09G3/3233G09G2300/0819
Inventor 山下淳一内野胜秀
Owner NIPPON ORGANIC RIT DISPLAY KK
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