SHIFT REGISTER CIRCUIT
First Claim
1. A shift register circuit for providing plural gate signals to plural gate lines, the shift register circuit comprising a plurality of shift register stages, an Nth shift register stage of the shift register stages comprising:
- a pull-up unit, electrically connected to an Nth gate line of the gate lines, for pulling up an Nth gate signal of the gate signals according to a first control signal and a high power voltage;
a pull-up control unit, electrically connected to the pull-up unit, for generating the first control signal according to a driving control voltage and a first clock;
an input unit, electrically connected to the pull-up control unit and an (N−
1) th shift register stage of the shift register stages, for inputting an (N−
1) th gate signal of the gate signals to become the driving control voltage according to an input control signal;
an energy-store unit, electrically connected to the pull-up control unit and the input unit, for performing a charging process or a discharging process based on the (N−
1)th gate signal;
a first pull-down unit, electrically connected to the Nth gate line and the pull-up unit, for pulling down the Nth gate signal according to a second control signal;
a pull-down control unit, electrically connected to the input unit and the first pull-down unit, for generating the second control signal according to the driving control voltage and the high power voltage; and
a second pull-down unit, electrically connected to the pull-down control unit and the pull-up control unit, for pulling down the first control signal according to the second control signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes a pull-up unit, a pull-up control unit, an input unit, a first pull-down unit, a second pull-down unit, and a pull-down control unit. The pull-up control unit generates a first control signal according to a driving control voltage and a first clock. The pull-up unit pulls up a corresponding gate signal according to the first control signal. The input unit is utilized for inputting the gate signal of a preceding shift register stage to become the driving control voltage according to a second clock having a phase opposite to the first clock. The pull-down control unit generates a second control signal according to the driving control voltage. The first and second pull-down units pull down the corresponding gate signal and the first control signal respectively according to the second control signal.
-
Citations
23 Claims
-
1. A shift register circuit for providing plural gate signals to plural gate lines, the shift register circuit comprising a plurality of shift register stages, an Nth shift register stage of the shift register stages comprising:
-
a pull-up unit, electrically connected to an Nth gate line of the gate lines, for pulling up an Nth gate signal of the gate signals according to a first control signal and a high power voltage; a pull-up control unit, electrically connected to the pull-up unit, for generating the first control signal according to a driving control voltage and a first clock; an input unit, electrically connected to the pull-up control unit and an (N−
1) th shift register stage of the shift register stages, for inputting an (N−
1) th gate signal of the gate signals to become the driving control voltage according to an input control signal;an energy-store unit, electrically connected to the pull-up control unit and the input unit, for performing a charging process or a discharging process based on the (N−
1)th gate signal;a first pull-down unit, electrically connected to the Nth gate line and the pull-up unit, for pulling down the Nth gate signal according to a second control signal; a pull-down control unit, electrically connected to the input unit and the first pull-down unit, for generating the second control signal according to the driving control voltage and the high power voltage; and a second pull-down unit, electrically connected to the pull-down control unit and the pull-up control unit, for pulling down the first control signal according to the second control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A shift register circuit for providing plural gate signals to plural gate lines, the shift register circuit comprising a plurality of shift register stages, an Nth shift register stage of the shift register stages comprising:
-
a pull-up unit, electrically connected to an Nth gate line of the gate lines, for pulling up an Nth gate signal of the gate signals according to a first control signal and a low-frequency clock; a pull-up control unit, electrically connected to the pull-up unit, for generating the first control signal according to a driving control voltage and a first clock; a first clock input unit, electrically connected to the pull-up control unit, for inputting the first clock to the pull-up control unit according to the low-frequency clock; an input unit, electrically connected to the pull-up control unit and an (N−
1) th shift register stage of the shift register stages, for inputting an (N−
1) th gate signal of the gate signals to become the driving control voltage according to an input control signal;an input control unit, electrically connected to the input unit, for inputting a second clock to become the input control signal according to the low-frequency clock, wherein the second clock has a phase opposite to the first clock; a second clock input unit, electrically connected to the input control unit, for inputting the second clock to the input control unit according to the low-frequency clock; an energy-store unit, electrically connected to the pull-up control unit and the input unit, for performing a charging process or a discharging process based on the (N−
1)th gate signal;a first pull-down unit, electrically connected to the Nth gate line and the pull-up unit, for pulling down the Nth gate signal according to a second control signal; a pull-down control unit, electrically connected to the input unit and the first pull-down unit, for generating the second control signal according to the driving control voltage and the low-frequency clock; and a second pull-down unit, electrically connected to the pull-down control unit and the pull-up control unit, for pulling down the first control signal according to the second control signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A shift register circuit for providing plural gate signals to plural gate lines, the shift register circuit comprising a plurality of shift register stages, an Nth shift register stage of the shift register stages comprising:
-
a pull-up unit, electrically connected to an Nth gate line of the gate lines, for pulling up an Nth gate signal of the gate signals according to a first control signal and a low-frequency clock; a pull-up control unit, electrically connected to the pull-up unit, for generating the first control signal according to a driving control voltage and a first clock; an input unit, electrically connected to the pull-up control unit and an (N−
1) th shift register stage of the shift register stages, for inputting an (N−
1) th gate signal of the gate signals to become the driving control voltage according to an input control signal;an input control unit, electrically connected to the input unit, for inputting a second clock to become the input control signal according to the low-frequency clock, wherein the second clock has a phase opposite to the first clock; an energy-store unit, electrically connected to the pull-up control unit and the input unit, for performing a charging process or a discharging process based on the (N−
1)th gate signal;a first pull-down unit, electrically connected to the Nth gate line and an (N+1) th shift register stage of the shift register stages, for pulling down the Nth gate signal according to an (N+1)th gate signal of the gate signals; a second pull-down unit, electrically connected to the pull-up control unit, for pulling down the first control signal according to a second control signal; a first pull-down control unit, electrically connected to the input unit and the second pull-down unit, for generating the second control signal according to the driving control voltage and a first low-frequency clock; a third pull-down unit, electrically connected to the pull-up control unit, for pulling down the first control signal according to a third control signal; and a second pull-down control unit, electrically connected to the input unit and the third pull-down unit, for generating the third control signal according to the driving control voltage and a second low-frequency clock having a phase opposite to the first low-frequency clock. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
Specification