DIFFERENTIAL SIGNALING SYSTEM AND FLAT PANEL DISPLAY WITH THE SAME
First Claim
1. A differential signaling system comprising:
- a first wiring and a second wiring connected to a sending end and a receiving end as a differential signal line;
a termination resistor connected between the first wiring and the second wiring in the receiving end side; and
a programmable compensation circuit connected to the termination resistor in parallel, including a plurality of switches to receive each bit of an input digital control signal, first n resistors connected between a source electrode of each of the switches and the first wiring, and second n resistors connected between a drain electrode of each of the switches and the second wiring.
3 Assignments
0 Petitions
Accused Products
Abstract
A differential signaling system and a flat panel display using the same. The differential signaling system includes a first wiring and a second wiring connected to a sending end and a receiving end as a differential signal line; a termination resistor connected between the first wiring and the second wiring in the receiving end side; and a programmable compensation circuit connected to the termination resistor in parallel. The programmable compensation circuits includes n switches to receive each bit of an input digital control signal; first resistors connected between a source electrode of each of the switches and the first wiring; and second resistors connected between a drain electrode of each of the switches and the second wiring.
30 Citations
21 Claims
-
1. A differential signaling system comprising:
-
a first wiring and a second wiring connected to a sending end and a receiving end as a differential signal line; a termination resistor connected between the first wiring and the second wiring in the receiving end side; and a programmable compensation circuit connected to the termination resistor in parallel, including a plurality of switches to receive each bit of an input digital control signal, first n resistors connected between a source electrode of each of the switches and the first wiring, and second n resistors connected between a drain electrode of each of the switches and the second wiring. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A flat panel display comprising:
-
a display panel having a plurality of data wirings and gate wirings arranged to intersect each other; a controller to receive an image signal, to generate a control signal, and to output the image signal and the control signal through first and second wirings as a differential signal line; a gate driver to receive the control signal from the controller and to apply a scan signal to the gate wirings; and a plurality of data driving circuits, each including a programmable compensation circuit connected to a terminal resistor in parallel installed between the first and second wirings, to automatically control an impedance value of the data driving circuit corresponding to a differential impedance value by the differential signal line, each of the data driving circuits including a data driver to receive the image signal and/or the control signal from the controller through the first and second wirings and to apply the image signal to the data wirings; wherein the programmable compensation circuits each include a plurality of switches to receive each bit of an input digital control signal, first n resistors connected between a source electrode of each of the switches and the first wiring; and
second n resistors connected between a drain electrode of each of the switches and the second wiring. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A flat panel display comprising:
-
a display panel having data wirings and gate wirings arranged so as to intersect; a controller to receive an input signal, to generate a control signal, and to output the control signal and the input signal to the display panel so as to display an image; a gate driver to receive the control signal from the controller and to apply a scan signal to the gate wirings based on the control signal; and a plurality of data driving circuits to receive the image signal and/or the control signal from the controller via first and second wirings and to apply the image signal to the data wirings; wherein each of the plurality of data driving circuits includes a programmable compensation circuit to dynamically adjust an impedance of the data driving circuit so as to match a differential impedance of the controller. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
Specification