Display device

• US 9,451,246 B2
• Filed: 07/10/2012
• Issued: 09/20/2016
• Est. Priority Date: 07/19/2011
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Koyama, Jun, Miyake, Hiroyuki, Shishido, Hideaki, Inoue, Seiko, Toyotaka, Kouhei, Kusunoki, Koji, Harada, Hikaru, Kaneyasu, Makoto
• Primary Examiner(s): AWAD, AMR A
• Assistant Examiner(s): Matthews, Andre
• Application Number:
  US13/545,768
• Publication Number:
  US 20130021239A1
• Time in Patent Office: 1,533 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04N 13/315 the parallax barriers being time-variant
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/356 having separate monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/373 for tracking forward-backward translational head movements, i.e. longitudinal movements
• CPC Class Codes: H04N 13/376 for tracking left-right translational head movements, i.e. lateral movements

Abstract

A display device includes a display panel including a plurality of pixels, a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner, and a positional data detector configured to detect a positional data of a viewer. The shutter panel is provided over a display surface side of the display panel, a width of one of the light-transmitting electrodes in the shutter panel is smaller than that of one of the plurality of pixels, and the driver circuit in the shutter panel is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes. The parallax barrier is capable of changing its shape in accordance with the detected positional data.

Claims

1. A display device comprising:

a display panel including a plurality of pixels;

a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner; and

a positional data detector configured to detect a positional data of a viewer,

wherein the shutter panel is provided over a display surface side of the display panel,

wherein a width of one of the light-transmitting electrodes is smaller than that of one of the plurality of pixels,

wherein the driver circuit is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes,

wherein the parallax barrier is capable of changing its shape in accordance with the detected positional data,

wherein the shutter panel further comprises an electrode,

wherein the liquid crystal is interposed between the light-transmitting electrodes and the electrode,

wherein the positional data detector comprises a first ultrasonic wave receiver and a second ultrasonic wave receiver, and an ultrasonic wave transmitter between the first ultrasonic wave receiver and the second ultrasonic wave receiver, so that the positional data detector recognizes an angle and a distance between the display device and the viewer, and

wherein the shutter panel further comprises transistors each including an oxide semiconductor layer served as a channel.

2. The display device according to claim 1,

wherein the plurality of pixels includes first pixels in a first column and second pixels in a second column,

wherein the first pixels are configured to perform a first display for a left eye of the viewer, and

wherein the second pixels are configured to perform a second display for a right eye of the viewer.

3. The display device according to claim 1, wherein the positional data detector utilizes an ultrasonic wave as a detecting medium.

4. The display device according to claim 1,

wherein one of the transistors is located between the driver circuit and one of the light-transmitting electrodes.

5. A display device comprising:

a display panel including a plurality of pixels arranged in matrix, the plurality of pixels including first pixels and second pixels;

a shutter panel including a liquid crystal and light-transmitting electrodes provided in a striped manner; and

a positional data detector configured to detect a positional data of a viewer,

wherein the shutter panel is provided over a display surface side of the display panel,

wherein the light-transmitting electrodes are provided to be parallel or substantially parallel with a column of the plurality of pixels arranged in matrix,

wherein a width of one of the light-transmitting electrodes is smaller than that of one of the plurality of pixels,

wherein the shutter panel is configured to form a parallax barrier;

wherein a shape of the parallax barrier is determined on the basis of the detected positional data when the first pixels in a first column perform a first display for a left eye of the viewer and the second pixels in a second column perform a second display for a right eye of the viewer,

wherein the shutter panel further comprises an electrode,

wherein the liquid crystal is interposed between the light-transmitting electrodes and the electrode,

wherein the positional data detector comprises a first ultrasonic wave receiver and a second ultrasonic wave receiver, and an ultrasonic wave transmitter between the first ultrasonic wave receiver and the second ultrasonic wave receiver, so that the positional data detector recognizes an angle and a distance between the display device and the viewer, and

wherein the shutter panel further comprises transistors each including an oxide semiconductor layer served as a channel.

6. The display device according to claim 5, wherein the positional data detector utilizes an ultrasonic wave as a detecting medium.

7. The display device according to claim 5,

wherein the shutter panel further comprises a driver circuit configured to selectively output signals for forming the parallax barrier to the light-transmitting electrodes.

8. The display device according to claim 7,

wherein one of the transistors is located between the driver circuit and one of the light-transmitting electrodes.

9. A display device comprising:

a display panel including a plurality of pixels;

a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner; and

a positional data detector configured to detect a positional data of a viewer,

wherein the shutter panel is provided over a display surface side of the display panel,

wherein a width of one of the light-transmitting electrodes is smaller than that of one of the plurality of pixels,

wherein the driver circuit is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes,

wherein the parallax barrier is capable of changing its shape in accordance with the detected positional data,

wherein the positional data detector comprises a first ultrasonic wave receiver and a second ultrasonic wave receiver, and an ultrasonic wave transmitter between the first ultrasonic wave receiver and the second ultrasonic wave receiver, so that the positional data detector recognizes an angle and a distance between the display device and the viewer, and

wherein the shutter panel further comprises transistors each including an oxide semiconductor layer served as a channel.

10. The display device according to claim 9,

wherein the plurality of pixels includes first pixels in a first column and second pixels in a second column,

wherein the first pixels are configured to perform a first display for a left eye of the viewer, and

wherein the second pixels are configured to perform a second display for a right eye of the viewer.

11. The display device according to claim 9, wherein the positional data detector utilizes an ultrasonic wave as a detecting medium.

12. The display device according to claim 9,

wherein one of the transistors is located between the driver circuit and one of the light-transmitting electrodes.