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Display device including display element having memorability and drive method

A technology for display components and display devices, applied to static indicators, instruments, etc., can solve problems such as difficult display devices, inability to correct electronic paper, and lack of contrast of display components, etc., to achieve good display effects

Inactive Publication Date: 2012-03-21
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the electronic paper is powered on during rewriting that occurs irregularly, correction using the accumulated power-on time may not be performed on the electronic paper
[0007] Therefore, it is difficult to make a display device free from lot-to-lot variation and temporal variation in contrast, luminance, and gamma characteristics of display elements.

Method used

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  • Display device including display element having memorability and drive method
  • Display device including display element having memorability and drive method
  • Display device including display element having memorability and drive method

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Embodiment Construction

[0042] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0043] figure 1 A schematic structural diagram of the display device according to the first embodiment is shown. The display device according to the first embodiment is electronic paper. When the display is rewritten, a drive signal is applied to the display element 10 . Once rewritten, the display is maintained without application of drive signals.

[0044] Such as figure 1 As shown, the display device according to the first embodiment includes a display element 10 using cholesteric liquid crystal, a column driver (segment driver) 11, a common driver 12, a power supply unit 13, a current sense amplifier 14, a main control unit 21, a frame memory 22 and the control unit 23.

[0045] The main control unit 21 includes a main CPU and the like for performing various processes on image data stored in an external storage device or obtained through a co...

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Abstract

A display device includes a display element that maintains its display state even when no longer driven, a capacitance detecting circuit that detects a capacitance of the display element, and a driving condition adjusting circuit that drives the display element under predetermined driving conditions to set the display element to the display state, and that adjusts driving conditions for the display element on the basis of the capacitance of the display element exhibiting the display state detected by the capacitance detecting circuit.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from prior Japanese Patent Application No. 2010-194777 filed on August 31, 2010, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to a display device including a display element (ie memory) with memory capability and a driving method thereof. Background technique [0004] A display device using a material having a memory capability, such as cholesteric liquid crystal, has been developed and applied to electronic paper and the like. Electronic paper is prone to lot-to-lot variability in contrast, luminance, and gamma characteristics of display elements due to the difficulty of a manufacturing process using a film substrate. These characteristics may change when the display element is used for a long period of time after manufacture. Even though the display device is driven under the same...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/36
CPCG09G2320/0626G09G2320/029G09G3/3681G09G3/3629G09G2300/0486G09G2300/023
Inventor 能势将树新海知久
Owner FUJITSU LTD