Unlock instant, AI-driven research and patent intelligence for your innovation.

Electro-optical device, driving method thereof, and electronic apparatus

A technology of electro-optical devices and driving methods, which can be applied in the fields of optics, nonlinear optics, instruments, etc., and can solve the problems of being unable to adopt, complicating the structure, increasing power consumption, etc.

Inactive Publication Date: 2012-08-22
EPSON IMAGING DEVICES CORP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above techniques, in order to extend the black image display period, there is only a method of shortening the image display period by increasing the speed of writing to the pixels, and distributing the amount of shortening to the black image display period.
If the speed of writing to the pixel is increased, the configuration becomes complicated and the power consumption increases, so there is a problem that it cannot be adopted for electronic devices in fields requiring high power consumption such as low power consumption.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electro-optical device, driving method thereof, and electronic apparatus
  • Electro-optical device, driving method thereof, and electronic apparatus
  • Electro-optical device, driving method thereof, and electronic apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0037] First, a first embodiment of the present invention will be described. figure 1 , is a block diagram showing the configuration of the electro-optical device in the first embodiment of the present invention.

[0038] As shown in the figure, the electro-optic device 10 is arranged around the display area 100, the scanning line driving circuit 140, the capacitance line driving circuit 150, the common electrode driving circuit 170 and the data line driving circuit 190, and the control circuit 20, A structure that controls each of their parts separately.

[0039] The display area 100 is an area where the pixels 110 are arranged. In this embodiment, the scanning lines 112 from the 1st row to the 320th row are arranged to extend in the row (X) direction, and the scanning lines 112 from the 1st column to the 240th row The column data lines 114 are arranged to extend in the column (Y) direction. Moreover, in figure 1 Corresponding to the intersections of the scan lines 112 in ...

no. 2 Embodiment approach

[0111] In the above-mentioned first embodiment, in order to make all the pixel capacitors 120 have the same polarity in one frame, the writing polarity is reversed every frame. However, in this frame inversion , the possibility of flickering and crosstalk increases. Therefore, a description will be given of the second embodiment in which the write polarity is inverted for every scanning line in one frame.

[0112] Figure 9 , is a block diagram showing the configuration of the electro-optical device in the second embodiment. As shown in the figure, in the second embodiment, the capacitance lines 132 are divided into odd-numbered (1, 3, 5, ..., 319) lines and even-numbered (2, 4, 6, ..., 320) lines, and The capacitive line driving circuit 150 is configured to supply a capacitive signal Vhld1 and a capacitive signal Vhld2 to the odd-row capacitive lines 132 and the even-row capacitive lines 132 , respectively.

[0113] Here, in the second embodiment, since the scanning lines ...

no. 3 Embodiment approach

[0141] Next, a third embodiment of the present invention will be described. In the electro-optical device of the third embodiment, the write polarity is reversed to the scanning line similarly to the second embodiment, and the power consumption is further reduced than that of the second embodiment.

[0142] Figure 13 , is a block diagram showing the configuration of the electro-optical device in the third embodiment. As shown in the figure, in the third embodiment, although the common electrode 108 is common to all the pixels 110 , the capacitance lines 132 are respectively provided corresponding to the 1st to 320th rows. Here, the capacitance lines 132 in the 1st to 320th rows are supplied with capacitance signals Hld1 to Hld320 by the capacitance line drive circuit 150 , respectively.

[0143] In addition, such a capacitive line driving circuit 150 may be formed on an element substrate together with the scanning line driving circuit 140 and the data line driving circuit 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electro-optical device, a driving method thereof and an electronic apparatus. In the hold-type display device that has a pixel connected to a storage capacitor via switchinThe invention relates to an electro-optical device, a driving method thereof and an electronic apparatus. In the hold-type display device that has a pixel connected to a storage capacitor via switching element, a frame period for driving the display device includes a first period, and a second period that is after the first period of the frame period. A voltage for black display is maintained fromg element, a frame period for driving the display device includes a first period, and a second period that is after the first period of the frame period. A voltage for black display is maintained from the beginning of the first period until a scanning line is selected. A voltage acquired by adding a predetermined voltage value to data signal is written to the pixel, when the scanning line is selecthe beginning of the first period until a scanning line is selected. A voltage acquired by adding a predetermined voltage value to data signal is written to the pixel, when the scanning line is selected. In the second period, a voltage applied to at least one of the common electrode and the capacitor line connected to the storage capacitor is changed.ted. In the second period, a voltage applied to at least one of the common electrode and the capacitor line connected to the storage capacitor is changed.

Description

technical field [0001] The present invention relates to a technique for suppressing blurring of a moving image in a so-called hold type display device. Background technique [0002] An electro-optical device such as an active matrix liquid crystal device is a hold type that holds an image for one frame period (16.7 milliseconds). Therefore, when shifting to the next frame, because the memory of viewing the image of the previous frame remains, if there is a change in the displayed image in the preceding and following frames, it will feel that the change area is hard and the outline is blurred (moving image blur). sensations). [0003] On the other hand, in an impulsive display device such as a CRT that displays images instantaneously, since the memory of the image displayed in the previous frame does not remain when the next frame is transferred, no moving image is generated. vagueness. Therefore, the following technology is proposed: In a hold-type electro-optic device, t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/36
CPCG09G2310/061G09G2300/0491G09G3/3655G09G2310/063G09G2320/0261G09G2300/0876G09G3/36G09G3/20G02F1/133
Inventor 山崎克则
Owner EPSON IMAGING DEVICES CORP