Light-Emitting Device, Information Processing Device, and Imaging Device

Patent metadata

Field	Value
Publication number	US-2016155783-A1
Application number	US-201615018115-A
Country	US
Kind code	A1
Filing date	Feb 8, 2016
Priority date	Sep 19, 2013
Publication date	Jun 2, 2016
Grant date	—

Abstract

Provided is a light-emitting device and an information processing device which include a light-emitting element mounted on a housing and an optical component detachable from the housing. The optical component is capable of condensing light emitted from the light-emitting element. This structure allows a user to select the emission of diffused light and condensed light by attaching or detaching the optical component.

First claim

What is claimed is:

1 - 8 . (canceled)

9 . A light-emitting device comprising:
a light-emitting element; a housing for supporting the light-emitting element; and an optical component attachable to and detachable from the housing, wherein the light-emitting element includes;
a first electrode;
a second electrode overlapping with the first electrode; and
a layer comprising a light-emitting organic compound, between the first electrode and the second electrode, and
wherein the optical component includes:
an attaching member for engaging with the housing, and
an optical sheet for condensing light emitting from the light-emitting element while being attached to the housing using the attaching member.

10 . The light-emitting device according to claim 9 ,
wherein the optical sheet includes a planar prism, a Fresnel lens, or a fly-eye lens.

11 . The light-emitting device according to claim 9 , further comprising:
a switching circuit configured to be supplied with constant current and a control pulse signal and configured to supply a constant current pulse, wherein the light-emitting element is configured to be supplied with the constant current pulse.

12 . The light-emitting device according to claim 9 , further comprising:
a sensor circuit configured to sense a state of attachment or detachment of the optical component and supply an attachment/detachment signal; and a constant current supply configured to be supplied with the attachment/detachment signal and configured to supply constant current whose amount is determined depending on the attachment/detachment signal, wherein the light-emitting element is configured to be supplied with the constant current.

13 . A light-emitting device comprising:
a first switching circuit configured to be supplied with a control pulse signal and a first constant current and configured to supply a first constant current pulse to a first light-emitting element; a second switching circuit configured to be supplied with a control pulse signal and a second constant current and configured to supply a second constant current pulse to a second light-emitting element; and a sensor for supplying a sensor signal in accordance with an environment, wherein the first light-emitting element comprises a first light-emitting organic compound, and the second light-emitting element comprises a second light-emitting organic compound capable of emitting a different color light from the first light-emitting organic compound, and wherein the first constant current and the second constant current are controlled depending upon the sensor signal.

14 . An imaging device comprising a light-emitting device according to claim 13 .

Assignees

• Semiconductor Energy Lab

Inventors

• Hirakata Yoshiharu

Classifications

• H05B45/60

  Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED] · CPC title

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10F39/806 Primary

  Optical elements or arrangements associated with the image sensors · CPC title