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.

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