DISPLAY DEVICE

• US 20170179168A1
• Filed: 07/29/2016
• Published: 06/22/2017
• Est. Priority Date: 12/18/2015
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: MIZUHASHI, Hiroshi, KURASAWA, Hayato, SUZUKI, Yuji, SUZUKI, Daichi
• Granted Patent: US 10,043,836 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G02F 2201/122 having a particular pattern
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G02F 2203/02 reflective
• CPC Class Codes: G02F 2203/30 Gray scale
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: H01L 27/1255 integrated with passive devices, e.g. auxiliary capacitors
• CPC Class Codes: H01L 27/13 combined with thin-film or thick-film passive components
• CPC Class Codes: H01Q 1/24 with receiving set
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H10K 50/818 Reflective anodes, e.g. ITO combined with thick metallic layers
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/123 Connection of the pixel electrodes to the thin film transistors [TFT]
• CPC Class Codes: H10K 59/80518 Reflective anodes, e.g. ITO combined with thick metallic layers
• CPC Class Codes: H10K 59/88 Dummy elements, i.e. elements having non-functional features

Abstract

According to one embodiment, a display device includes an insulating substrate, display function layer disposed above the insulating substrate, reflective electrode disposed between the insulating substrate and the display function layer, to which a potential for image display is applied, and antenna having a band shape disposed between the insulating substrate and the reflective electrode.

Claims

1. A display device comprising:

an insulating substrate;

a display function layer disposed above the insulating substrate;

a reflective electrode disposed between the insulating substrate and the display function layer, the reflective electrode to which a potential for image display is applied; and

an antenna having a band shape disposed between the insulating substrate and the reflective electrode.

2. The display device of claim 1, wherein the antenna is formed as a swirl with a gap therein in a plan view.

3. The display device of claim 2, comprising a display area for image display and a non-display area around the display area, wherein the antenna is disposed to be opposed to at least the display area.

4. The display device of claim 3, further comprising a bridge line disposed in a layer which is different from that of the antenna, wherein

the antenna includes an end disposed within the non-display area and the other end disposed within the display area, and the bridge line is electrically connected to the other end, crosses the antenna in a plan view, and extends toward the non-display area.

5. The display device of claim 4, wherein the one end has a width which is less than that of the antenna in the display area.

6. The display device of claim 4, wherein the other end is electrically connected to an antenna line disposed in the non-display area through the bridge line.

7. The display device of claim 1, wherein the display function layer is a liquid crystal layer.

8. The display device of claim 1, wherein the antenna is formed of a plurality of thin lines.

9. The display device of claim 1, comprising a pixel circuit disposed between the insulating substrate and the reflective electrode, a relay electrode which relays the pixel circuit and the reflective electrode, a first interlayer insulating film disposed between the insulating substrate and the relay electrode, and a second interlayer insulating film disposed between the relay electrode and the reflective electrode, wherein

the antenna is disposed in the same layer in which the relay electrode is disposed while keeping apart from the relay electrode.

10. The display device of claim 9, wherein the antenna includes an opening in a position opposed to the reflective electrode, and the relay electrode is disposed within the opening to be apart from the antenna.

11. The display device of claim 1, further comprising a dummy electrode disposed in the same layer in which the antenna is disposed, the dummy electrode disposed to be apart from the antenna and having the same thickness as that of the antenna.

12. The display device of claim 1, wherein the display function layer is an organic luminescent layer.

13. The display device of claim 12, comprising a switching element disposed on the insulating substrate, and a first interlayer insulating film and a second interlayer insulating film disposed between the insulating substrate and the reflective electrode, wherein

the antenna is disposed between the first interlayer insulating film and the second interlayer insulating film.