Light-emitting device, display device, and stress sensor
A stacked structure ( 1 ) includes an electrostriction layer ( 2 ) including an electric inductive distortion material and a stress light-emitting layer ( 3 ) including a stress light-emitting material. When applying a voltage to the electrostriction layer ( 2 ) in the stacked structure ( 1 ), the electric inductive distortion material deforms, thereby the electrostriction layer ( 2 ) deforms. The deformation of the electrostriction layer ( 2 ) causes an external force to act on the stress light-emitting material of the stress light-emitting layer ( 3 ), and the stress light-emitting layer ( 3 ) emits light, accordingly. That is, by applying the voltage to the stacked structure ( 1 ), the stacked structure ( 1 ) can emit the light.
1. A light-emitting device, comprising:
an electrostriction section including an electrostriction ceramics material as an electric inductive distortion material which deforms in response to an applied voltage, and
a stress light-emitting section including a stress light-emitting material which emits light in response to applied external force,
wherein the stress light-emitting section is formed by mixing the stress light-emitting material and a long phosphorescent phosphor, and the long phosphorescent phosphor is SrAl 2 O 4 :Eu, aluminate, or silicate, and
wherein the electric inductive distortion material and the stress light-emitting material are mixed.
2. A display device comprising the light-emitting device as set forth in claim 1 .
3. A stress sensor comprising the light-emitting device as set forth in claim 1 , the light-emitting device indicating a luminous intensity which varies depending on a strain ratio.
4. A light-emitting device, comprising:
an electrostriction section including an electric inductive distortion material which deforms in response to an applied voltage, and
a stress light-emitting section including a stress light-emitting material which emits light in response to applied external force,
wherein the stress light-emitting section is formed by mixing the stress light-emitting material and a long phosphorescent phosphor, and the long phosphorescent phosphor is SrAl 2 O 4 :Eu, aluminate, or silicate, and
wherein the electric inductive distortion material and the stress light-emitting material are mixed.
5. A display device comprising the light-emitting device as set forth in claim 4 .
6. A stress sensor comprising the light-emitting device as set forth in claim 4 , the light-emitting device indicating a luminous intensity which varies depending on a strain ratio.
7. A light-emitting device, comprising:
an electrostriction section including an electric inductive distortion material which deforms in response to an applied voltage, and
a stress light-emitting section including a stress light-emitting material which emits light in response to applied external force,
wherein the electric inductive distortion material and the stress light-emitting material are mixed.
8. A display device comprising the light-emitting device as set forth in claim 7 .
9. A stress sensor comprising the light-emitting device as set forth in claim 7 , the light-emitting device indicating a luminous intensity which varies depending on a strain ratio.