Display device, module, display system, and electronic device

Patent metadata

Field	Value
Publication number	US-2016154435-A1
Application number	US-201514947084-A
Country	US
Kind code	A1
Filing date	Nov 20, 2015
Priority date	Nov 28, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

A display device or a display system with which a viewer can feel a strong or natural stereoscopic effect in a two-dimensional image and is less likely to be fatigued is provided. The display system includes a display portion, a detection portion, and a control portion. The display portion is flexible. The detection portion is configured to detect the conditions of a viewer's eye to obtain detection information and to supply the detection information to the control portion. The control portion is configured to extract information on the viewer's fatigue from the detection information and to change the curvature of the display portion on the basis of the information on the viewer's fatigue. The central angle of the curved surface of the display portion is preferably greater than or equal to 20° and less than 90°.

First claim

What is claimed is:

1 . A display device comprising a display portion,
wherein the display portion comprises a curved surface, and wherein a central angle of the curved surface is greater than or equal to 20° and less than 90°.

2 . The display device according to claim 1 ,
wherein a definition of the display portion is greater than or equal to 220 ppi and less than or equal to 2000 ppi.

3 . The display device according to claim 1 ,
wherein a contrast ratio of the display portion is 1000:1 or higher.

4 . A module comprising:
the display device according to claim 1 ; and an FPC.

5 . A display system comprising:
a display portion; a detection portion; and a control portion, wherein the display portion is flexible, wherein the detection portion is configured to detect a condition of a viewer's eye to obtain detection information and to supply the detection information to the control portion, and wherein the control portion is configured to extract information on the viewer's fatigue from the detection information and to change curvature of the display portion on the basis of the information on the viewer's fatigue.

6 . An electronic device comprising:
the display system according to claim 5 ; and at least one of an antenna, a battery, a housing, a speaker, a microphone, an operation switch, and an operation button.

7 . The display system according to claim 5 ,
wherein the detection portion includes a camera.

8 . The display system according to claim 5 ,
wherein the detection portion includes a light source for emitting infrared light and a light-receiving portion for detecting the infrared light reflected from a viewer's eyeball.

9 . The display system according to claim 5 ,
wherein a definition of the display portion is greater than or equal to 220 ppi and less than or equal to 2000 ppi.

10 . The display system according to claim 5 ,
wherein a contrast ratio of the display portion is 1000:1 or higher.

11 . The display system according to claim 5 ,
wherein the control portion uses information comprising a length of screen gazing time and the number of times of blinking per unit time of the viewer when extracting the information on the viewer's fatigue.

12 . The display system according to claim 5 ,
wherein curvature of the display portion is made smaller when the viewer's fatigue is severe.

13 . The display system according claim 5 ,
wherein the control portion comprises a memory, an arithmetic portion and a drive control portion.

14 . The display system according to claim 5 ,
wherein the detection information includes a movement of an eyeball, color or shape of a white of the viewer's eye, an iris, or a pupil, or a movement of an eyelid.

Assignees

• Semiconductor Energy Lab

Inventors

• Yanagisawa Yuichi

Classifications

• G06F1/1624

  with sliding enclosures, e.g. sliding keyboard or display · CPC title

• H04N13/383

  for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G06F1/1622

  with enclosures rotating around an axis perpendicular to the plane they define or with ball-joint coupling, e.g. PDA with display enclosure orientation changeable between portrait and landscape by rotation with respect to a coplanar body enclosure · CPC title