2004-347626 is referenced by 4 patents.

PROBLEM TO BE SOLVED: To provide a light emitting device and an element substrate which are capable of suppressing unevenness in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor.SOLUTION: The driving transistor also serves as an erasing transistor and the driving transistor is operated in a saturation region. The gate of the driving transistor is connected to an erasing scan line and it can be selected whether or not to flow current by a potential of the erasing scan line. In addition, a current controlling transistor which operates in a linear region is connected in series to the driving transistor, thus a video signal transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.

Title
Element substrate and light emitting device
Application Number
2003-139563
Publication Number
2004-347626
Application Date
May 16, 2003
Publication Date
December 9, 2004
Inventor
Yamazaki Masaru
Anzai Aya
Osame Mitsuaki
Assignee
Semiconductor Energy Lab
IPC
H05B 33/14
G09G 03/20
G09G 03/30