US 8,139,016 B2 · Method for improving the EMI performance of an LCD device

Abstract

A method for improving the EMI performance of an LCD device is disclosed, adapting for a point-to-point transistor transistor logic interface of the LCD device. The disclosed method comprises the following steps: receiving a plurality of image data based on a data CLK signal; providing a first CLK signal and a second CLK signal to a plurality of source drivers by a timing controller, wherein the frequencies of the first CLK signal and the second CLK signal are smaller than the frequency of the data CLK signal, the phase of the first CLK signal is different from the phase of the second CLK signal; and the timing controller transmitting a plurality of first image data to the plurality of source drivers based on the first CLK signal, and the timing controller transmitting a plurality of second image data to the plurality of source drivers based on the second CLK signal.

Claims16

Dependent claims

A method for improving the EMI performance of an LCD device, adapting for a point-to-point transistor transistor logic interface of the LCD device, comprising the following steps:

(a) receiving a plurality of image data based on a data CLK signal;
(b) providing a first CLK signal and a second CLK signal to a plurality of source drivers by a timing controller, wherein a frequency of the first CLK signal and a frequency of the second CLK signal are smaller than a frequency of the data CLK signal, a phase of the first CLK signal is different from a phase of the second CLK signal, wherein a phase difference between the first CLK signal and the second CLK signal is less than 180 degrees;
and
(c) the timing controller transmitting a plurality of first image data to the plurality of source drivers based on the first CLK signal, and the timing controller transmitting a plurality of second image data to the plurality of source drivers based on the second CLK signal.

1 more element

A timing controller adapting for an LCD panel module, electrically connected with a plurality of source drivers by a point-to-point transistor transistor logic interface, comprising:

a receiving unit, receiving a plurality of image data based on a data CLK signal;
a data processing logic unit, electrically connected with the receiving unit and the plurality of source drivers;
and
a multi-phase CLK signal generating unit, electrically connected with the receiving unit and the data processing logic unit, wherein the multi-phase CLK signal generating unit provides a first CLK signal and a second CLK signal, a frequency of the first CLK signal and a frequency of the second CLK signal are smaller than a frequency of the data CLK signal, and the phase of the first CLK signal is different from the phase of the second CLK signal, wherein a phase difference between the first CLK signal and the second CLK signal is less than 180 degrees;
wherein the data processing logic unit transmits a plurality of first image data to the plurality of source drivers based on the first CLK signal, and the data processing logic unit transmits a plurality of second image data to the plurality of source drivers based on the second CLK signal.

2 more elements

Dependencies are inferred from the claim text.

Method for improving the EMI performance of an LCD device

Life of this patent

Method for improving the EMI performance of an LCD device

Life of this patent

Abstract

Claims16