17817403. INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME simplified abstract (Samsung Display Co., Ltd.)

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INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME

Organization Name

Samsung Display Co., Ltd.

Inventor(s)

Moon Jae Jeong of Yongin-si (KR)

INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 17817403 titled 'INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME

Simplified Explanation

The patent application describes a display device with driving and sensing electrodes, analog front-end circuits, a selector, an A/D converter, and a signal processor.

  • The analog front-end circuits include a charge amplifier, a filter, a demodulator, and a complex band-pass filter.
  • The charge amplifier amplifies first and second sensing signals and outputs first and second differential signals.
  • The filter filters the differential signals to output filtered signals.
  • The demodulator generates in-phase and quadrature signals from the filtered signals.
  • The complex band-pass filter filters the in-phase and quadrature signals.

Potential applications of this technology:

  • Display devices such as LCD screens or touchscreens.
  • Medical devices that require precise sensing and measurement.
  • Industrial equipment that relies on accurate display and control.

Problems solved by this technology:

  • Improved accuracy and sensitivity in sensing and measurement.
  • Reduction of noise and interference in signal processing.
  • Enhanced performance and functionality of display devices.

Benefits of this technology:

  • Higher resolution and precision in display and sensing.
  • Improved signal quality and reliability.
  • Increased efficiency and performance of display devices.


Original Abstract Submitted

A display device includes driving electrodes and sensing electrodes; analog front-end circuits; a selector connected to the analog front-end circuits to select an output of the analog front-end circuits; an A/D converter generating a sensed value based on output signals of the selector; and a signal processor. Each of the analog front-end circuits includes a charge amplifier differentially amplifying first and second sensing signals provided to first and second input terminals, and outputting first and second differential signals to first and second output terminals; a filter filtering the first and second differential signals to output first and second filtered signals; a demodulator outputting an in-phase signal (I-signal) and a quadrature signal (Q-signal) of the first and second filtered signals; and a complex band-pass filter that filters the I-signal and the Q-signal.

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