Dislplay panel, flat-panel display device and driving method thereof
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorsHua Zheng, Cheng-hung Chen
Life of this patent
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Abstract
The display panel includes data driven chip and at least two scanning driven chips. The second scanning signal input terminal of each of the scanning driven chip is connected to a first scanning signal output terminal of the data driven chip by corresponding transmission circuits. At least one transmission circuit includes a serially connected resistor so that sum of impedance of the transmission circuits are equal, or the difference of the impedance of the transmission circuit is less than a predetermined value. In addition, a flat-panel display device with uniform brightness and a driving method thereof are also provided.
Claims14
A display panel, comprising:
- at least one data driven chip and at least a first and a second scanning driven chips;
- the data driven chip and the at least first and second driven chips arranged on a lateral area of the display panel;
- the at least one data driven chip comprising a first scanning signal input, a data signal input terminal, a first scanning signal output terminal, and a data signal output terminal;
- each of the at least first and second scanning driven chips comprising a second scanning signal input terminal and a second scanning signal output terminal;
- the second scanning signal input terminals of the first and the second scanning driven chips connected to the first scanning signal output terminal of the data driven chip by a first and a second transmission circuit respectively;
- and
- wherein the first transmission circuit further comprises a resistor serially connected between the data driven chip and the first scanning driven chip so that sum of impedance of the first transmission circuit is equal to sum of impedance of the second transmission circuit, or a difference of impedance between the first and the second transmission circuit is less than a predetermined value.
A flat-panel display device having a display panel comprising:
- the display panel comprising at least one data driven chip and at least a first and a second scanning driven chips;
- the data driven chip and the at least first and second driven chips arranged on a lateral area of the display panel;
- the at least one data driven chip comprising a first scanning signal input, a data signal input terminal, a first scanning signal output terminal, and a data signal output terminal;
- each of the at least first and second scanning driven chips comprising a second scanning signal input terminal and a second scanning signal output terminal;
- and
- the second scanning signal input terminals of the first and the second scanning driven chips connected to the first scanning signal output terminal of the data driven chip by a first and a second transmission circuit respectively;
- wherein the first transmission circuit further comprises a resistor serially connected between the data driven chip and the first scanning driven chip so that sum of impedance of the first transmission circuit is equal to sum of impedance of the second transmission circuit, or a difference between the impedances of the first and the second transmission circuits is less than a predetermined value.
A driving method of a flat-panel display device, comprising:
- turning on a driven pixel switch to provide scanning driven signals to at least two scanning driven chips via a first and a second transmission circuits, wherein the first transmission circuit further comprises a resistor serially connected between the data driven chip and the first scanning driven chip so that sum of impedance of the first transmission circuit is equal to sum of the impedance of the second transmission circuit, or the difference of the impedance of the first and the second transmission circuit is less than a predetermined value;
- and
- providing data driven signals to data driven chips upon turning on the driven pixel switch so as to transmit the data driven signals to corresponding pixel operation units.
Dependencies are inferred from the claim text.