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Display device and driving method thereof

A technology of display device and drive module, applied in static indicators, instruments, etc., can solve problems such as affecting display quality

Inactive Publication Date: 2011-07-13
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon seriously affects the display quality and is a technical problem that needs to be solved urgently.

Method used

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  • Display device and driving method thereof
  • Display device and driving method thereof
  • Display device and driving method thereof

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Experimental program
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Embodiment Construction

[0020] The specific implementation manners of the display device and its driving method provided by the present invention will be described below with reference to the accompanying drawings.

[0021] Please also refer to image 3 and Figure 4 , image 3 Shown is a timing diagram of a display device driving signal in an embodiment of the present invention; Figure 4 Shown is a schematic diagram of the connection relationship of components of a display device according to an embodiment of the present invention. The display device in this embodiment includes an analysis panel and a light source. The driving method of the display device in this embodiment includes: periodically driving the light source with an alternating current, the driving cycle of the light source is S1, and applying At least one current pulse 20; use the display signal to periodically refresh the analysis panel, the refresh period S2 is equal to 1 / 2 of the light source driving period S1, and a refresh per...

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Abstract

The invention provides a display device and a drive method thereof, in particular to a projection display device and the drive method thereof. The invention aims to provide the display device and the drive method thereof, so that the brightness of display pictures of the display device is uniform, and districts with inconsistent brightness do not appear. The display device comprises an analysis panel and a light source. The method of the drive display device comprises the following steps: the light source is driven periodically; at least a current impulse is exerted on the light source beforethe current direction are turned; the analysis panel is refreshed periodically, and the refresh cycle is one half of the drive cycle of the light source; and the refresh cycle comprises a display period and a dark field period, and the current impulse corresponds to the dark field period.

Description

【Technical field】 [0001] The present invention relates to a display device and its driving method, in particular to a projection display device and its driving method. 【Background technique】 [0002] Display technologies such as projection display and liquid crystal display have been greatly developed in recent years, and have initially entered thousands of households. These display technologies, especially projection displays, generally require a light source and an analysis panel. The light source (such as a light bulb) projects light to the analysis panel (such as a liquid crystal display panel or a digital micromirror device - DMD). The ray analysis is displayed as an image. [0003] Please refer to figure 1 , which is a schematic diagram of timing sequence of driving signals of a display device in the prior art. The driving method of the existing display device includes providing an alternating current to a light source, especially a high-voltage bulb, and applying a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20G09G3/34
Inventor 游俊坤
Owner QISDA OPTRONICS (SUZHOU) CO LTD