18432846. SENSING CIRCUIT, DISPLAY DEVICE AND METHOD OF OPERATING A SENSING CIRCUIT simplified abstract (Samsung Display Co., LTD.)

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SENSING CIRCUIT, DISPLAY DEVICE AND METHOD OF OPERATING A SENSING CIRCUIT

Organization Name

Samsung Display Co., LTD.

Inventor(s)

HAYONG Jung of Hwaseong-si (KR)

JOONSUK Baik of Suwon-si (KR)

JAEHOON Shin of Hwaseong-si (KR)

WOOK Lee of Hwaseong-si (KR)

JUNG-TAEK Kim of Seoul (KR)

SENSING CIRCUIT, DISPLAY DEVICE AND METHOD OF OPERATING A SENSING CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18432846 titled 'SENSING CIRCUIT, DISPLAY DEVICE AND METHOD OF OPERATING A SENSING CIRCUIT

Simplified Explanation

The sensing circuit of a display device includes a sensing line initialization circuit that initializes two sensing lines in different sub-sensing periods, a line selection switch for each sensing line, and a sensing channel that samples the sensing voltages of each line in their respective sub-sensing periods.

  • The sensing circuit initializes two sensing lines simultaneously in different sub-sensing periods.
  • Each sensing line is connected to the sensing channel through a line selection switch.
  • The sensing channel samples the sensing voltages of each line in their respective sub-sensing periods.

Potential Applications

The technology can be applied in:

  • Touchscreen displays
  • Capacitive touch sensors
  • Proximity sensors

Problems Solved

This technology solves issues related to:

  • Efficient sensing line initialization
  • Accurate sampling of sensing voltages
  • Improved performance of display devices

Benefits

The benefits of this technology include:

  • Enhanced sensitivity in touchscreens
  • Reduced power consumption
  • Higher accuracy in sensing operations

Potential Commercial Applications

The technology can be commercially applied in:

  • Smartphones and tablets
  • Interactive kiosks
  • Automotive touchscreens

Possible Prior Art

One possible prior art is the use of separate sensing lines for touchscreens and touch-sensitive devices, but the simultaneous initialization and sampling of multiple sensing lines in different sub-sensing periods is a novel approach.

Unanswered Questions

How does this technology impact the overall cost of display devices?

The cost implications of implementing this sensing circuit design are not addressed in the abstract. It would be interesting to know if this technology increases the manufacturing cost of display devices.

What are the potential limitations of this sensing circuit in terms of scalability?

The abstract does not mention the scalability of this technology. It would be important to understand if this sensing circuit design can be easily scaled for different sizes of display devices.


Original Abstract Submitted

A sensing circuit of a display device includes a sensing line initialization circuit which substantially simultaneously initializes a first sensing line and a second sensing line in a first sub-sensing period of a sensing period, a first line selection switch which couples the first sensing line to a sensing channel in the first sub-sensing period, a second line selection switch which couples the second sensing line to the sensing channel in a second sub-sensing period of the sensing period, and the sensing channel which samples a first sensing voltage of the first sensing line in a first sampling period of the first sub-sensing period, and samples a second sensing voltage of the second sensing line in a second sampling period of the second sub-sensing period. The second sensing line is not initialized during a period from the first sampling period to the second sampling period.