Lg Display Co., Ltd.

YeonWook Kang

Seungpyo Seo

A display device can include a display panel including pixels and touch electrodes; a timing controller to output a touch enable signal based on a display driving section for displaying image and a second level in a touch driving section for providing a touch driving signal to the touch electrodes; and a touch driver configured to provide a common voltage or the touch driving signal to the touch electrodes based on the touch-enable signal, in which a frame section comprises a plurality of long horizontal blank (LHB) sections, each including the display driving section and the touch driving section. Also, the touch enable signal includes a first level during the display driving section and second level during the touch driving section, the timing controller adjusts the touch enable signal by varying a period of the first level and a period of the second level.

Display device with mitigated low frequency noise and operation method thereof

A display device can include a display panel including a plurality of pixels and touch electrodes configured to sense a touch input, and a timing controller configured to generate a vertical synchronization signal and a horizontal synchronization signal for controlling the display panel to display an image based on an image signal, and adjust the horizontal synchronization signal by varying a horizontal time period corresponding to a time period interval for individual cycles of the horizontal synchronization signal.

A display apparatus is disclosed, which comprises a display panel including pixels connected to the gate lines and data lines, a data driver configured to sequentially output data signals and output selection signals, and a distributor comprised of transistors connected to each of the data lines and switched in accordance with the selection signal to output the data signals sequentially output from each of a plurality of source channels to the connected data lines, wherein a cycle of each of the selection signals has a transistor-on period and a transistor-off period, a first cycle of a first selection signal among the selection signals is different from a second cycle of the first selection signal, and a first transistor-off period in the first cycle of the first selection signal is different from a second transistor-off period in the second cycle of the first selection signal.

Display apparatus

A display apparatus is disclosed, which comprises a display panel including pixels formed in a pixel area defined by intersection between gate lines and data lines, a data driver sequentially outing data signals per sub horizontal period in one horizontal period and outputting a selection signal including a transistor on period corresponding to the sub horizontal period, and a distributor comprised of transistors connected to each of the data lines and switched in accordance with the selection signal to output the data signals sequentially output from each of a plurality of source channels to the connected data lines, wherein the transistor on period in the selection signal is different from the sub horizontal period.

A signal transmission device for transmitting touch data and a display device using the same are disclosed. The signal transmission device includes a plurality of integrated circuits driving touch sensors and outputting touch data obtained from the touch sensors, a controller controlling the integrated circuits and determining a touch input on the basis of the touch data received from the integrated circuits; and a plurality of lines connecting the controller and the integrated circuits in a multi-point manner. The controller and the integrated circuits communicate with each other in both directions via the lines. A data packet of differential signal transmitted between the controller and the integrated circuits includes a header interval, a register address interval, and a data interval allocated between a start dummy clock and an end dummy clock.

Signal transmission device and display using the same

Embodiments of the present application provide a touch control circuit, a touch driving circuit, and a touch display device, which selectively change and set one or more of a waveform, an amplitude voltage, and a pulse period of a touch driving signal without reduction in touch performance, and thus, provide a touch display device and an application device which are stable and reliable. Also, embodiments of the present application provide a touch control circuit, a touch driving circuit, and a touch display device, which selectively change and set one or more of a waveform, an amplitude voltage, and a pulse period of a load free signal without reduction in touch performance, and thus, provide a touch display device and an application device which are stable and reliable.

Touch display device capable of selectively changing characteristic of touch driving signal

An array substrate for a display device can include a substrate, a pad positioned on the substrate, an insulating layer positioned on the pad and including a plurality of open portions exposing the pad, a first metal layer positioned on the insulating layer and disposed to be in contact with the pad, a second metal layer positioned on the first metal layer, and a bump electrode positioned on the second metal layer and including a plurality of dimples.

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Paju-si, South Korea

YeonWook Kang