Devices and methods of transmitting data, source drivers using the same, and liquid crystal display (LCD) devices having the same

A source driver in a liquid crystal display (LCD) device, comprising:

• a data transmission line having a plurality of data transmission sections;
• a data register configured to provide data to the data transmission line;
• a plurality of data latch units, respectively coupled to the data transmission sections, the data latch units configured to determine whether the data latch units store the provided data from the plurality of data transmission sections and to sequentially store the provided data from the plurality of data transmission sections, based on the determined result, into the data latch units;
• a shift register unit configured to transmit a control signal to the data latch units, respectively, so as to sequentially store the provided data into the plurality of data latch units, from one end of the data latch units to another end of the data latch units, the control signal indicating whether the data latch units respectively store the provided data;
• and
• a data transmission controller configured to control the data transmission sections such that at least one first data transmission section, of the plurality of data transmission sections, is turned on and at least one second data transmission section, of the plurality of data transmission sections, is turned off, wherein each of the at least one first data transmission sections is coupled between the data source and a first data latch unit, of the plurality of data latch units, that is determined to store the provided data, and wherein each of the at least one second data transmission section corresponds to a data transmission section, of the plurality of data transmission sections, that is other than the at least one first data transmission section.

An LCD device for reducing power consumption, comprising:

• a display panel configured to include a plurality of gate lines and a plurality of data lines;
• a gate driver configured to drive the gate lines in the display panel;
• and
• a source driver configured to drive the data lines in the display panel, the source driver comprising:
• a data transmission line having a plurality of data transmission sections;
• a data register configured to provide data to the data transmission line;
• a plurality of data latch units respectively coupled to the data transmission sections, the data latch units configured to determine whether the data latch units store the provided data from the plurality of data transmission sections and to sequentially store the provided data from the plurality of data transmission sections, based on the determined result, into the data latch units, from one end of the data latch units to another end of the data latch units;
• a shift register unit configured to transmit a control signal to the data latch units, respectively, and to sequentially store the provided data into the plurality of data latch units, from one end of the data latch units to another end of the data latch units, the control signal indicating whether the data latch units respectively store the provided data;
• and
• a data transmission controller configured to control the data transmission sections such that at least one first data transmission section, of the plurality of data transmission sections, is turned on and at least one second data transmission section, of the plurality of data transmission sections, is turned off, wherein each of the at least one first data transmission sections is coupled between the data source and a first data latch unit, of the plurality of data latch units, that is determined to store the provided data, and wherein each of the at least one second data transmission section corresponds to a data transmission section, of the plurality of data transmission sections, that is other than the at least one first data transmission section.

A method of transmitting data, comprising:

• receiving data from a data source;
• transmitting the received data from the data source to a plurality of data storage units respectively coupled to a data transmission line, the data transmission line including a plurality of data transmission sections;
• determining whether the data storage units respectively store the received data from the plurality of data transmission sections and to sequentially store the received data from the plurality of data transmission sections, into the data storage units, from one end of the data storage units to another end of the data storage units;
• and
• controlling the data transmission sections such that at least one first data transmission section, of the plurality of data transmission sections, is turned on and at least one second data transmission section, of the plurality of data transmission sections, is turned off, wherein each of the at least one first data transmission sections is coupled between the data source and a first data storage unit, of the plurality of data storage units, that is determined to store the provided data, and wherein each of the at least one second data transmission section corresponds to a data transmission section, of the plurality of data transmission sections, that is other than the at least one first data transmission section,
• wherein the above steps are performed within an LCD device.

A method of driving a source driver in an LCD device, comprising:

• receiving data from a data register;
• transmitting the received data from the data register to a plurality of data latch units, respectively coupled to a data transmission line, the data transmission line including a plurality of data transmission sections;
• determining whether the data latch units respectively store the received data from the plurality of data transmission sections and to sequentially store the received data from the plurality of data transmission sections, into the data storage units, from one end of the data latch units to another end of the data latch units;
• and
• controlling the data transmission sections such that at least one first data transmission section, of the plurality of data transmission sections, is turned on and at least one second data transmission section, of the plurality of data transmission sections, is turned off, wherein each of the at least one first data transmission sections is coupled between the data source and a first data storage unit, of the plurality of data storage units, that is determined to store the provided data, and wherein each of the at least one second data transmission section corresponds to a data transmission section, of the plurality of data transmission sections, that is other than the at least one first data transmission section,
• wherein the above steps are performed within an LCD device.