Flat panel display
AssigneeSamsung SDI Co., Ltd.
InventorsSang-Il Park, Jae Bon Koo
Life of this patent
Estimating the term…
Abstract
The present invention discloses an organic light emitting diode capable of obtaining proper luminance and long life cycle by controlling an amount of current flowing through an organic electroluminescent device per unit pixel. The organic light emitting diode includes a luminescent device and first and second transistors for driving the luminescent device, wherein the first and second transistors have different resistance values. The first transistor is a driving transistor for driving the luminescent device. The second transistor is a switching transistor for switching on and off the driving transistor. The driving transistor may have a higher resistance value than the switching transistor.
Claims15
A flat panel display, comprising:
- a luminescent device;
- a driving transistor for driving the luminescent device;
- a switching transistor for switching on and off the driving transistor,
- wherein the driving transistor has a higher resistance than the switching transistor.
A flat panel display comprising R, G and B unit pixels, wherein at least one unit pixel of the R, G and B unit pixels includes a driving transistor for driving the luminescent device and a switching transistor for switching on and off the driving transistor, each having source/drain regions, wherein the drain region of the driving transistor has a higher resistance value than the drain region of the switching transistor.
Dependencies are inferred from the claim text.