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US 12,755,677 B2Granted
Level shifting device and display device including the same
AssigneeLG Display Co., Ltd.
InventorsJungjae Kim, Sanguk Lee
Life of this patent
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Abstract
A level shifting device and a display device including the same are discussed. The level shifting device in some examples can include a controller configured to output a switching signal based on a plurality of output selection signals input in parallel through each corresponding input pin, and a first switching unit including a plurality of first switching elements connected between an input terminal and output terminals of a level selection signal, respectively, and configured to be turned on in response to the switching signal.
Claims18
A level shifting device, comprising:
- a controller configured to output a switching signal based on a plurality of output selection signals input in parallel through each corresponding input pin;
- a first switching unit including a plurality of first switching elements connected between an input terminal and output terminals of a level selection signal, respectively, and configured to be turned on in response to the switching signal;
- and
- a second switching unit including a plurality of second switching elements connected between the plurality of first switching elements and the output terminals thereof, respectively, and configured to be turned on in response to a latch signal,
- wherein the controller outputs the switching signal in a turn-on level to one of the plurality of first switching elements based on the plurality of output selection signals, and
- wherein the plurality of first switching elements are turned on according to the switching signal, and are configured to output the level selection signal to a corresponding output terminal.
3 more elements
A display device, comprising:
- a display panel having an arrangement of pixels;
- a timing controller configured to control an operation timing of the display panel;
- a level shifting device configured to generate output signals based on a gate driving control signal applied from the timing controller and output the output signals to a corresponding output terminal among output terminals of the level shifting device;
- and
- a gate driver including a plurality of stage circuits connected to the output terminals of the level shifting device, respectively, and configured to apply a gate signal to the pixels in response to the output signals,
- wherein the timing controller is configured to generate a plurality of output selection signals by encoding information with respect to an output signal of which a voltage level is to be transitioned among the output signals in a binary code, and
- wherein the level shifting device includes:
- a controller configured to receive the plurality of output selection signals in parallel through each corresponding input pin, to generate the output signals based on the plurality of output selection signals, and to output a switching signal based on the plurality of output selection signals;
- a first switching unit including a plurality of first switching elements connected between an input terminal and output terminals of a level selection signal, respectively, and configured to be turned on in response to the switching signal;
- and
- a second switching unit including a plurality of second switching elements connected between the plurality of first switching elements and the output terminals thereof, respectively, and configured to be turned on in response to a latch signal.
8 more elements
Dependencies are inferred from the claim text.