DISPLAY DEVICE

• US 20160012760A1
• Filed: 07/09/2015
• Published: 01/14/2016
• Est. Priority Date: 07/11/2014
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: TANAKA, Chihiro, TANAKA, Toshihiko, UEHARA, Toshinori
• Granted Patent: US 10,068,538 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2320/041 Temperature compensation
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence

Abstract

According to an aspect, a display device comprising: a display unit; a plurality of electrodes arranged side by side in a first direction along a display surface of the display unit; a detecting unit that detects one of an electric resistance of the electrodes, a voltage, and a current; and a specifying unit that specifies temperature distribution of the display surface based on the one of the electric resistance of the electrodes, the voltage, and the current. The electrodes are tapered in a second direction along the display surface and orthogonal to the first direction, and the electrodes include a first electrode tapered toward one side in the second direction and a second electrode tapered toward the other side opposite to the one side. The first and second electrodes are alternately arranged side by side in the first direction.

Claims

1. A display device comprising:

a display unit that displays an image;

a plurality of electrodes arranged side by side in a first direction along a display surface of the display unit;

a detecting unit that detects one of an electric resistance of the electrodes, a voltage, and a current, the voltage and the current corresponding to the electric resistance; and

a specifying unit that specifies temperature distribution of the display surface based on the one of the electric resistance of the electrodes, the voltage, and the current, wherein

the electrodes are tapered in a second direction along the display surface and orthogonal to the first direction, and

the electrodes include a first electrode tapered toward one side in the second direction and a second electrode tapered toward the other side opposite to the one side, the first and second electrodes being alternately arranged side by side in the first direction.

2. The display device according to claim 1, wherein

the electrodes include a reference electrode having a uniform shape in the second direction, and

the reference electrode is arranged between the first electrode and the second electrode that are arranged side by side in the first direction.

3. The display device according to claim 1, further comprising an executing unit that executes a predetermined command when there is a portion in the display surface having a temperature equal to or higher than a predetermined temperature.

4. The display device according to claim 3, further comprising:

a determining unit that determines whether the portion in the display surface having a temperature equal to or higher than the predetermined temperature is in a designated area serving as a partial area in the display surface, wherein

the executing unit executes a command to terminate display of the image performed by the display unit when the portion in the display surface having a temperature equal to or higher than the predetermined temperature is in the designated area.

5. The display device according to claim 1, wherein the electrodes are transparent electrodes provided in the display unit.