Driving method of liquid crystal display device

Patent metadata

Field	Value
Publication number	US-9646521-B2
Application number	US-201113072864-A
Country	US
Kind code	B2
Filing date	Mar 28, 2011
Priority date	Mar 31, 2010
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

It is an object to provide a specific driving method for reduction in power consumption in displaying a 3D image with field sequential driving. A driving method of a liquid crystal display device is a method in which a stereoscopic image can be perceived with a liquid crystal display device switching an image for a left eye and an image for a right eye to display the image for the left eye or the image for the right eye, and a pair of glasses having a switching means with which the image for the right eye and the image for the left eye are switched in synchronization with display of the image for the left eye or the image for the right eye in order that the left or right eye of a viewer may selectively perceive the image for the left eye or the image for the right eye; the image for the left eye and the image for the right eye are perceived by the left eye or right eye in a mixed color by switching light which is emitted from a backlight portion and which corresponds to a plurality of colors, within a predetermined period, and the light which is emitted from the backlight portion are continuously emitted in accordance with an image signal of each of a plurality of colors which forms the image for the left eye and the image for the right eye.

First claim

The invention claimed is:

1. A driving method of a liquid crystal display device with which a stereoscopic image is perceived with a liquid crystal display device configured to switch an image for a left eye and an image for a right eye, and a pair of glasses having a switching means with which the image for the left eye and the image for the right eye are switched in synchronization with display of the image for the left eye or the image for the right eye in order that the left or right eye of a viewer selectively perceives the image for the left eye or the image for the right eye,
wherein the image for the left eye and the image for the right eye are perceived by the left eye or right eye in a mixed color by switching light which is emitted from a backlight portion and which corresponds to red, green, blue, and white, within a predetermined period,
wherein the backlight portion is turned off during an image signal writing operation period for the left eye and during an image signal writing operation period for the right eye, and
wherein the red light, the green light, the blue light and the white light are each emitted in separate portions of the predetermined period that are not overlapped with each other.

2. The driving method of the liquid crystal display device according to claim 1 , wherein the light emitted from the backlight portion is emitted from a light-emitting diode.

3. The driving method of the liquid crystal display device according to claim 1 ,
wherein a plurality of pixels of the liquid crystal display device include a liquid crystal element and a transistor for controlling the liquid crystal element, and
wherein the liquid crystal element includes a liquid crystal material exhibiting a blue phase.

4. The driving method of the liquid crystal display device according to claim 3 , wherein a semiconductor layer of the transistor includes an oxide semiconductor.

5. The driving method of the liquid crystal display device according to claim 1 , wherein the light which is emitted from the backlight portion are continuously emitted during a lighting period for the left eye or a lighting period for the right eye which corresponds to one of the red, the green, the blue, and the white.

Assignees

• Yamazaki Shunpei
• Koyama Jun
• Semiconductor Energy Lab

Inventors

• Yamazaki Shunpei
• Koyama Jun

Classifications

• H10P95/90

  Thermal treatments, e.g. annealing or sintering · CPC title

• H10D30/6757

  characterised by the structure of the channel, e.g. transverse or longitudinal shape or doping profile (TFTs having channel structures for preventing kink or snapback effects H10D30/6708; TFTs having lightly-doped source or drain extensions H10D30/6715) · CPC title

• H10D30/674

  characterised by the active materials · CPC title

• G09G2310/0235

  Field-sequential colour display · CPC title

• H04N13/0497

  Electricity · mapped topic