Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-11-27
2007-11-27
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S081000, C345S084000, C345S080000, C345S089000, C345S690000, C315S169100, C315S169200, C315S169300
Reexamination Certificate
active
10872093
ABSTRACT:
A display element is configured as follows in order to prolong the display lifetime of an electro-optical element without inserting a resistance element or lowering the numerical aperture due to a change in layout. The display element includes an organic EL element, which is an electro-optical element, a power source line electrode, a scanning signal line electrode, a data signal line electrode, a common electrode, an auxiliary capacitance, a current control TFT for controlling the current flowing through the organic EL element, and a data voltage control TFT for controlling the timing at which current flows through the organic EL element. The conductive resistance of the current control TFT is set such that 0.1≦β≦7.0, where β(=Vr/Vel) is a ratio of a voltage Vr applied across the current control TFT to a voltage Vel applied across the organic EL element. Thus, the speed of the temporal change of the luminance of the organic EL element is slowed down, and the display lifetime is prolonged.
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Muroi Takao
Senda Takahiro
Conlin Davd G.
Hjerpe Richard
Nguyen Jennifer T
Tucker David A.
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