IP Library Granted Patent US 9,368,089
Granted Patent B2
US 9,368,089 · App. 14/801,045 · Granted Jun 14, 2016

Display system and electrical appliance

Inventors: Shunpei Yamazaki (Tokyo, JP); Jun Koyama (Kanagawa, JP); Noriko Ishimaru (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
G09G5/10G09G3/30G09G3/3233G09G3/2022G09G2300/0426G09G2300/0809G09G2300/0842G09G2320/029G09G2320/043G09G2320/0626G09G2330/021G09G2330/028G09G2354/00G09G2360/14G09G2360/144G09G2360/145
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Quick Facts
Patent No.
US 9,368,089
App. No.
14/801,045
Granted
Jun 14, 2016
Kind
B2
Abstract

A display system in which the luminance of light-emitting elements in a light-emitting device is adjusted based on information on an environment. A sensor obtains information on an environment as an electrical signal. A CPU converts, based on comparison data set in advance, the information signal into a correction signal for correcting the luminance of EL elements. Upon receiving this correction signal, a voltage changer applies a predetermined corrected potential to the EL elements. Thus, this display system enables control of the luminance of the EL elements.

Claims (66)

1. An electrical appliance comprising:

a light-emitting device, the light-emitting device comprising:

a first insulating film;

a transistor over the first insulating film;

a second insulating film over the transistor;

an EL element over the second insulating film, the EL element comprising:

a first electrode over the second insulating film;

an EL layer over the first electrode; and

a second electrode over the EL layer; and

a sensor obtaining an environment information signal,

wherein the environment information signal is converted into a correction signal on the basis of a comparison data, and

wherein a luminance of the EL element is corrected by using the correction signal.

2. The electrical appliance according to claim 1 , wherein the environment information signal is any one of lightness, temperature, and humidity.

3. The electrical appliance according to claim 1 , wherein a CPU converts the environment information signal into the correction signal on the basis of the comparison data.

4. The electrical appliance according to claim 1 , wherein the second insulating film comprises any one of polyimide, polyamide, and an acrylic resin.

5. An electrical appliance comprising:

a light-emitting device, the light-emitting device comprising:

a first insulating film;

a transistor over the first insulating film;

a second insulating film over the transistor;

an EL element over the second insulating film, the EL element comprising:

a first electrode over the second insulating film;

an EL layer over the first electrode; and

a second electrode over the EL layer; and

a sensor obtaining an environment information signal,

wherein the environment information signal is converted into a correction signal on the basis of a comparison data, and

wherein a predetermined corrected potential according to the correction signal is applied to the EL element.

6. The electrical appliance according to claim 5 , wherein the environment information signal is any one of lightness, temperature, and humidity.

7. The electrical appliance according to claim 5 , wherein a CPU converts the environment information signal into the correction signal on the basis of the comparison data.

8. The electrical appliance according to claim 5 , wherein the second insulating film comprises any one of polyimide, polyamide, and an acrylic resin.

9. An electrical appliance comprising:

a light-emitting device, the light-emitting device comprising:

a first insulating film;

a transistor over the first insulating film;

a second insulating film over the transistor, the second insulating film comprising an opening;

an EL element over the second insulating film, the EL element comprising:

a first electrode over the second insulating film;

an EL layer over the first electrode; and

a second electrode over the EL layer; and

a sensor obtaining an environment information signal,

wherein the first electrode is electrically connected to the transistor through the opening,

wherein the opening is filled by a protective portion,

wherein the environment information signal is converted into a correction signal on the basis of a comparison data, and

wherein a luminance of the EL element is corrected by using the correction signal.

10. The electrical appliance according to claim 9 , wherein the environment information signal is any one of lightness, temperature, and humidity.

11. The electrical appliance according to claim 9 , wherein a CPU converts the environment information signal into the correction signal on the basis of the comparison data.

12. The electrical appliance according to claim 9 , wherein the second insulating film comprises any one of polyimide, polyamide, and an acrylic resin.

13. The electrical appliance according to claim 9 , wherein the protective portion comprises any one of polyimide, polyamide, and an acrylic resin.

14. An electrical appliance comprising:

a light-emitting device, the light-emitting device comprising:

a first insulating film;

a transistor over the first insulating film;

a second insulating film over the transistor, the second insulating film comprising an opening;

an EL element over the second insulating film, the EL element comprising:

a first electrode over the second insulating film;

an EL layer over the first electrode; and

a second electrode over the EL layer; and

a sensor obtaining an environment information signal,

wherein the first electrode is electrically connected to the transistor through the opening,

wherein the opening is filled by a protective portion,

wherein the environment information signal is converted into a correction signal on the basis of a comparison data, and

wherein a predetermined corrected potential according to the correction signal is applied to the EL element.

15. The electrical appliance according to claim 14 , wherein the environment information signal is any one of lightness, temperature, and humidity.

16. The electrical appliance according to claim 14 , wherein a CPU converts the environment information signal into the correction signal on the basis of the comparison data.

17. The electrical appliance according to claim 14 , wherein the second insulating film comprises any one of polyimide, polyamide, and an acrylic resin.

18. The electrical appliance according to claim 14 , wherein the protective portion comprises any one of polyimide, polyamide, and an acrylic resin.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2015
From: YAMAZAKI, SHUNPEI; KOYAMA, JUN; SHIBATA, NORIKO
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 036570/0994 →
Priority Claims (1)
JP 2000-008419 · Jan 17, 2000 · national
Continuity (5)
Continuation 14275961 · May 13, 2014
Continuation 13587968 · Aug 17, 2012
Continuation 12618926 · Nov 16, 2009
Continuation 09752817 · Jan 3, 2001
Related Publication 20150325173A1 · Nov 12, 2015