Light-emitting unit, display unit, and lighting unit

Patent metadata

Field	Value
Publication number	US-11372268-B2
Application number	US-201816767218-A
Country	US
Kind code	B2
Filing date	Oct 24, 2018
Priority date	Dec 6, 2017
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

There is provided a display unit that is able to provide an indoor environment comfortable to a user. This display unit includes a frame member and a flexible display. The frame member is disposed, in a structure including a daylighting section that lets light through, around the daylighting section and includes a winder including a rotary shaft. The flexible display includes a dimming layer and a display device layer including a light-emitting layer disposed on the dimming layer, and is windable with rotation of the rotary shaft provided in the winder of the frame member and drawable from the winder.

First claim

The invention claimed is:

1. A light-emitting unit comprising:
a frame member disposed, in a structure including a daylighting section that lets light through, around the daylighting section, the frame member including a winder including a rotary shaft; and
a flexible sheet including a dimming layer and a light-emitting layer disposed on the dimming layer, the flexible sheet being windable with rotation of the rotary shaft provided in the winder of the frame member and being drawable from the winder.

2. The light-emitting unit according to claim 1 , wherein the flexible sheet is configured to cover an entirety of the daylighting section by being drawn from the winder.

3. The light-emitting unit according to claim 1 , wherein an outer edge of the light-emitting layer is located inside with respect to an outer edge of the dimming layer.

4. The light-emitting unit according to claim 1 , further comprising a controller that performs dimming control to adjust a transmission state of external light, which enters the dimming layer through the daylighting section, at the dimming layer.

5. The light-emitting unit according to claim 4 , further comprising at least one of a first luminance sensor that measures a luminance of first light entering the dimming layer through the daylighting section or a second luminance sensor that measures a luminance of second light entering the dimming layer from a side opposite to the structure, wherein
the controller performs the dimming control on a basis of at least one of the luminance of the first light or the luminance of the second light.

6. The light-emitting unit according to claim 5 , wherein the controller performs emission luminance control of the light-emitting layer of the flexible sheet in conjunction with the dimming control.

7. The light-emitting unit according to claim 6 , further comprising a storage section that accumulates result data regarding the dimming control and the emission luminance control by the controller, wherein
the controller performs another dimming control and another emission luminance control on a basis of the result data accumulated in the storage section.

8. The light-emitting unit according to claim 4 , wherein the frame member includes at least one of a control board or a speaker, the control board including the controller.

9. A display unit comprising:
a frame member disposed, in a structure including a daylighting section that lets light through, around the daylighting section, the frame member including a winder including a rotary shaft; and
a flexible display including a dimming layer and a display device layer including a light-emitting layer disposed on the dimming layer, the flexible display being windable with rotation of the rotary shaft provided in the winder of the frame member and being drawable from the winder.

10. The display unit according to claim 9 , further comprising:
a first light absorbing film disposed to cover the display device layer of the flexible display, the first light absorbing film letting red light, green light, and blue light through and absorbing wavelength light other than the red light, the green light, and the blue light; and
a second light absorbing film disposed for the daylighting section, the second light absorbing film absorbing the red light, the green light, and the blue light and letting at least a portion of the wavelength light other than the red light, the green light, and the blue light through.

11. A lighting unit comprising a light-emitting unit, the light-emitting unit including
a frame member disposed, in a structure including a daylighting section that lets light through, around the daylighting section, the frame member including a winder including a rotary shaft, and
a flexible sheet including a dimming layer and a light-emitting layer disposed on the dimming layer, the flexible sheet being windable with rotation of the rotary shaft provided in the winder of the frame member and being drawable from the winder.

Assignees

• Sony Group Corp

Inventors

• Yamamoto Takeshi
• Araki Soya
• Tachikawa Yoshinori
• Azuma Yohei
• Eshita Yoichiro
• Niwa Hayato

Classifications

• H10K59/00

  Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00 · CPC title

• G09G3/3406

  Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336) · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title

• H05B33/02

  Details · CPC title

• G09G2380/02

  Flexible displays · CPC title