Display Driving Circuit and Method Thereof
AssigneeHimax Technologies Limited
InventorYu-Wen Chiou
Life of this patent
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Abstract
A display driving circuit has a scan switch, an assistant unit, several storage switches, and several storage units. The scan switch couples to a data line. The assistant unit couples to the scan switch. The storage switches couple to the assistant unit. Each storage unit couples to the assistant unit by one of the storage switches. The assistant unit is shared by the storage units to compensate for several driving voltages or several driving currents of the storage units.
Claims23
An display driving circuit, comprising:
- a scan switch coupled to a data line;
- an assistant unit coupled to the scan switch;
- a plurality of storage switches coupled to the assistant unit;
- and
- a plurality of storage units each coupled to the assistant unit by one of the storage switches;
- wherein the assistant unit is shared by the storage units to compensate for a plurality of driving voltages or a plurality of driving currents of the storage units.
A display driving circuit transmitting data signals through a data line to a plurality of storage units, wherein the data signals include driving voltages or currents in the storage units, the circuit comprising:
- a scan switch having a first end coupled to the data line;
- a plurality of storage switches each having a first end coupled to one of the storage units;
- and
- an assistant unit coupled between a second end of the scan switch and second ends of the storage switches, compensating offsets of the driving voltages or currents in the storage units;
- wherein the scan switch is turned on during a scan period and the storage switches are sequentially turned on during the scan period.
An display driving circuit, comprising:
- a plurality of storage units wherein each storage unit comprises:
- at least one storage capacitor storing a data signal;
- at least one driving transistor controlled by the data signal;
- and
- at least one organic light emitting diode driven by the driving transistor;
- an assistant unit shared by the storage units to compensate for a plurality of driving voltages or a plurality of driving currents of the storage units;
- a plurality of storage switches respectively coupling each storage unit to the assistant unit;
- and
- a scan switch coupling the assistant unit to a data line.
A display driving method, comprising:
- transmitting a data signal to an assistant unit which is coupled to a plurality of storage units through a plurality of storage switches;
- and
- switching to transmit the data signal from the assistant unit to one of the storage units by the storage switches;
- wherein the assistant unit is shared by the storage units to compensate for a plurality of driving voltages or a plurality of driving currents of the storage units.
A display driving circuit transmitting data signals through a data line, wherein the data signals include driving voltages or currents, the circuit comprising:
- a plurality of storage switches respectively coupled to the data line;
- and
- a plurality of storage units each coupled to the data line by one of the storage switches;
- wherein the storage units are arranged to store the driving voltages or currents of the data signals.
Dependencies are inferred from the claim text.