US2016204179A1PendingUtilityA1

Light emitting device and electronic apparatus

48
Assignee: SEIKO EPSON CORPPriority: Sep 12, 2013Filed: Mar 23, 2016Published: Jul 14, 2016
Est. expirySep 12, 2033(~7.1 yrs left)· nominal 20-yr term from priority
Inventors:Hitoshi OtaRyoichi Nozawa
H01L 27/3262H01L 27/3279H10K 59/131H10K 59/1213H10K 59/124H10K 59/1315H10K 59/1201
48
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Claims

Abstract

On a semiconductor substrate, a plurality of transistors that includes a drive transistor which controls a drive current according to a potential of a gate, a light emitting element that emits a light having a brightness corresponding to the drive current, and an element isolation portion that electrically isolates each transistor are formed. The element isolation portion has a structure in which an insulator fills inside of a groove formed on the semiconductor substrate.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A light emitting device comprising:
 a semiconductor substrate;   a first conductor and a second conductor formed over the semiconductor substrate;   a light emitting element having a first electrode, a light emitting layer, and a second electrode connected to the second conductor;   a drive transistor having a first terminal connected to the first conductor and a second terminal;   a first transistor electrically connected between the second terminal of the drive transistor and the first electrode of the light emitting element;   a groove portion formed on the semiconductor substrate; and   an insulator that fills inside of the groove portion,   wherein the insulator is disposed between the drive transistor and first transistor.   
     
     
         2 . The light emitting device according to  claim 1 ,
 wherein a width of the groove portion disposed between the drive transistor and first transistor is greater than a channel width of the first transistor.   
     
     
         3 . The light emitting device according to  claim 1 , further comprising:
 a signal line;   a second transistor electrically connected between the signal line and a gate of the drive transistor,   wherein the insulator is disposed between the first transistor and the second transistor.   
     
     
         4 . The light emitting device according to  claim 3 ,
 wherein a width of the groove portion disposed between the first transistor and the second transistor is greater than a channel width of the second transistor.   
     
     
         5 . The light emitting device according to  claim 3 , further comprising:
 a signal line drive circuit that supplies a gradation voltage to the signal line.   
     
     
         6 . The light emitting device according to  claim 1 , further comprising:
 a third transistor that controls conduction between the gate and a drain of the drive transistor,   wherein the insulator is disposed between the drive transistor and the third transistor.   
     
     
         7 . The light emitting device according to  claim 6 ,
 wherein a width of the groove portion disposed between the drive transistor and the third transistor is greater than a channel width of the third transistor.   
     
     
         8 . The light emitting device according  claim 1 ,
 wherein a width of the groove portion disposed between the drive transistor and first transistor is greater than a channel width of the drive transistor.   
     
     
         9 . The light emitting device according to  claim 1 , further comprising:
 a control line connected to a gate of the first transistor; and   a scanning line drive circuit that supply a control signal to the control line.   
     
     
         10 . An electronic apparatus comprising:
 the light emitting device according to  claim 1 .   
     
     
         11 . An electronic apparatus comprising:
 the light emitting device according to  claim 2 .   
     
     
         12 . An electronic apparatus comprising:
 the light emitting device according to  claim 3 .   
     
     
         13 . An electronic apparatus comprising:
 the light emitting device according to  claim 4 .   
     
     
         14 . An electronic apparatus comprising:
 the light emitting device according to  claim 5 .   
     
     
         15 . An electronic apparatus comprising:
 the light emitting device according to  claim 6 .   
     
     
         16 . An electronic apparatus comprising:
 the light emitting device according to  claim 7 .   
     
     
         17 . An electronic apparatus comprising:
 the light emitting device according to  claim 8 .   
     
     
         18 . An electronic apparatus comprising:
 the light emitting device according to  claim 9 .

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