Liquid crystal display device
View Patent ↗The specification and drawings describe and show embodiments of the present invention in a liquid crystal display device for maintaining a picture quality in divisional driving of a large-scale/high-resolution liquid crystal display panel. In the device, a liquid crystal display panel has a plurality of liquid crystal cells at the intersections between a plurality of data lines and gate lines and a plurality of thin film transistors driving the liquid crystal cells. A plurality of switching devices are provided at least one of at the data lines and the gate lines switching to either a divisional driving mode or a non-divisional driving mode. A controller supplies a signal to the switching devices. A control line is provided at the liquid crystal display panel and connected to the switching devices and the controller.
1. A liquid crystal display device, comprising:
a liquid crystal display panel having a plurality of liquid crystal cells at each intersection between a plurality of data lines and gate lines and a plurality of thin film transistors driving the liquid crystal cells;
a plurality of first switching devices in the gate lines such that each gate line is provided with at least one of the plurality of first switching devices, the plurality of first switching devices being provided for switching a driving mode of the plurality of liquid crystal cells to either a divisional driving mode or a non-divisional driving mode, wherein the plurality of first switching devices are positioned at the middle portion of the gate lines;
a controller supplying a control signal to the first switching devices to control the first switching devices; and
a control line connecting the first switching devices and the controller.
2. The liquid crystal display device of claim 1 , further comprising a plurality of second switching devices at the middle portion of the data lines.
3. The liquid crystal display device of claim 1 , wherein the control signal corresponds to an on-selection signal when the divisional driving mode is to be selected and corresponds to an off-selection signal when the non-divisional driving mode is to be selected.
4. A liquid crystal display device, comprising:
a liquid crystal display panel having a plurality of liquid crystal cells at each intersection between a plurality of data lines and gate lines and a plurality of thin film transistors driving the liquid crystal cells;
a plurality of first switching devices in the gate lines such that each gate line is provided with at least one of the plurality of first switching devices, the plurality of first switching devices being provided for switching a driving mode of the plurality of liquid crystal cells to either a divisional driving mode or a non-divisional driving mode, wherein the plurality of first switching devices are positioned at the middle portion of the gate lines;
a controller supplying a first control signal to the first switching devices to control the first switching devices;
a control line connecting the first switching devices and the controller;
first and second source drivers applying a data signal to the data lines;
first and second gate drivers applying a gate signal to the gate lines; and
a timing controller applying a second control signal to the source driver and the gate driver.
5. The liquid crystal display device of claim 4 , further comprising a plurality of second switching devices at the middle portion of the data lines.
6. The liquid crystal display device of claim 4 , wherein the first control signal corresponds to an on-selection signal when the divisional driving mode is to be selected and corresponds to an off-selection signal when the non-divisional driving mode is to be selected.