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Display device and method for driving the same

A display and display element technology, applied to static indicators, instruments, electric solid devices, etc., can solve problems such as difficult to achieve high contrast

Inactive Publication Date: 2007-08-29
JAPAN DISPLAY CENTRAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it is difficult to achieve high contrast

Method used

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  • Display device and method for driving the same
  • Display device and method for driving the same
  • Display device and method for driving the same

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Experimental program
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Embodiment Construction

[0019] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals designate components having the same or similar functions, and repeated descriptions will be omitted.

[0020] FIG. 1 is a plan view schematically showing a display of a first embodiment of the present invention. The display is an active matrix display, for example, an active matrix organic EL display, and includes a plurality of pixels PX. On the insulating substrate SUB, a plurality of pixels PX are arranged in a matrix.

[0021] A scan signal line driver YDR and a video signal line driver XDR are further arranged on the substrate SUB.

[0022] On the substrate SUB, the scanning signal lines SL1 and SL2 extend in the row direction of the pixels PX, or are arranged in the column direction of the pixels PX. The scan signal lines SL1 and SL2 are connected to a scan signal line driver YDR. The s...

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PUM

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Abstract

In a write period, a write current is caused to flow through a video signal line (DL) in a first state where a first control terminal and an output terminal of a drive control element (DR1), a second control terminal of a drive control element (DR2), and a video signal line (DL) are connected one another and a potential of a scan signal line (SL1) is set at a first potential, and the potential of the scan signal line (SL1) is shifted from the first potential to a second potential in a second state where the first and second control terminals, the output terminal, and the video signal line (DL) are disconnected from one another are sequentially executed. In a effective display period, a drive current is caused to flow through a display element (OLED) while keeping the potential of the scan signal line (SL1) at the second potential.

Description

technical field [0001] The present invention relates to a display and its driving method, in particular to a display and its driving method which controls the optical properties of each display element by the magnitude of the driving current flowing through each display element. Background technique [0002] On a display such as an organic electroluminescent (EL) display (which controls the optical properties of each display element by the magnitude of the drive current flowing through it), if the magnitude of the drive current changes, a Phenomena that deteriorate image quality such as brightness unevenness. Therefore, when using an active matrix driving method in such a display, all pixels must be the same in terms of the characteristics of the drive control elements used to control the magnitude of the drive current. However, in such displays, drive control elements are usually formed on an insulator such as a glass substrate, so their characteristics are easily chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/30G09G3/20H01L51/50
CPCG09G2300/0852G09G2300/0861G09G2320/066G09G3/325G09G2300/0885G09G2320/0271G09G3/30H05B33/12G09G3/20G09G3/32
Inventor 青木良朗
Owner JAPAN DISPLAY CENTRAL CO LTD