Source driver and display apparatus including the same
First Claim
1. A source driver comprising:
- an amplification unit including a plurality of groups of amplifiers, each of the plurality of groups of amplifiers including a first amplifier and a second amplifier;
multiplexers configured to select and provide an output of one of the first and second amplifiers in each of the plurality of groups of amplifiers to one of a plurality of data lines;
charge share switch units corresponding to the multiplexers and between the plurality of data lines and a common line; and
a control switch between the common line and a power supply configured to provide a reference voltage,wherein based on or in response to a power off reset (PFR) signal, the control switch provides the reference voltage to the common line, and the charge share switches connect the common line to the data lines.
2 Assignments
0 Petitions
Accused Products
Abstract
A source driver includes an amplification unit including a plurality of groups of amplifiers, each of the plurality of groups of amplifiers including a first amplifier and a second amplifier, multiplexers configured to select and provide an output of one of the first and second amplifiers in each of the plurality of groups to one of a plurality of data lines, charge share switch units corresponding to the multiplexers and between the plurality of data lines and a common line, and a control switch between the common line and a power supply configured to provide a reference voltage. Based on or in response to a power off reset (PFR) signal, the control switch provides the reference voltage to the common line, and the charge share switches connect the common line to the data lines, based on or in response to a power off rest (PFR) signal.
-
Citations
20 Claims
-
1. A source driver comprising:
-
an amplification unit including a plurality of groups of amplifiers, each of the plurality of groups of amplifiers including a first amplifier and a second amplifier; multiplexers configured to select and provide an output of one of the first and second amplifiers in each of the plurality of groups of amplifiers to one of a plurality of data lines; charge share switch units corresponding to the multiplexers and between the plurality of data lines and a common line; and a control switch between the common line and a power supply configured to provide a reference voltage, wherein based on or in response to a power off reset (PFR) signal, the control switch provides the reference voltage to the common line, and the charge share switches connect the common line to the data lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A source driver comprising:
-
a plurality of amplifiers; multiplexers configured to select and provide an output of one of the plurality of amplifiers to one of a plurality of data lines; charge share switch units corresponding to the multiplexers and between the plurality of data lines and a common line; and a control switch between the common line and a power supply configured to provide a reference voltage, wherein; the amplifiers are divided into a plurality of groups of amplifiers, and each of the plurality of groups of amplifiers includes a first amplifier and a second amplifier, each of the multiplexers selectively outputs a data signal from the first and second amplifiers of a corresponding one of the plurality of groups of amplifiers to two neighboring or adjacent data lines of the plurality of data lines, and when a voltage from the power supply to the amplifiers becomes less than a predetermined voltage, the control switch is turned on, the multiplexers are turned off, and the charge share switch units are turned on. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification