18446835. APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH simplified abstract (Apple Inc.)
Contents
- 1 APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH
Organization Name
Inventor(s)
Karan S. Jain of San Jose CA (US)
Santosh Pokhrel of San Francisco CA (US)
APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH - A simplified explanation of the abstract
This abstract first appeared for US patent application 18446835 titled 'APPARATUS TO REDUCE NEGATIVE PIXEL FROM CAPACITIVE TOUCH
Simplified Explanation
The patent application describes touch electrode architectures for reducing negative pixels in mutual capacitance touch sensor panels caused by poorly grounded objects. The architecture includes mutual capacitance unit cells with drive electrodes, sense electrodes, and ground bars to provide an increased capacitive path to ground for poorly grounded fingers, reducing mutual capacitance and improving touch detection. The increased capacitive coupling between the object and ground also reduces charge coupling back onto nearby sense electrodes, reducing negative pixels and touch detection errors.
- Increased capacitive path to ground for poorly grounded objects
- Reduction in mutual capacitance between drive and sense electrodes
- Decreased charge coupling back onto nearby sense electrodes
- Improved touch detection accuracy
Potential Applications
The technology can be applied in various touch-sensitive devices such as smartphones, tablets, touchscreens, and interactive displays.
Problems Solved
1. Reduction of negative pixels in mutual capacitance touch sensor panels 2. Improved touch detection accuracy and reliability
Benefits
1. Enhanced user experience with more accurate touch detection 2. Reduced occurrence of touch detection errors 3. Improved performance in touch-sensitive devices
Potential Commercial Applications
The technology can be utilized in consumer electronics, automotive displays, industrial control panels, and other touch-sensitive devices to enhance user interaction and improve device performance.
Possible Prior Art
One possible prior art could be the use of additional grounding techniques in touch sensor panels to reduce interference and improve touch detection accuracy.
Unanswered Questions
1. How does the touch electrode architecture handle variations in grounding conditions across different environments? 2. Are there any limitations to the size or configuration of the touch sensor panels that can incorporate this technology?
Original Abstract Submitted
Touch electrode architectures for reducing the occurrence of negative pixels in mutual capacitance touch sensor panels that are caused by poorly grounded objects are disclosed. A touch electrode architecture can utilize mutual capacitance unit cells, each of which include a drive electrode, a sense electrode, and one or more ground bars. The one or more ground bars can provide an increased capacitive path to ground for a poorly grounded finger, which can result in a larger reduction in mutual capacitance between the drive and sense electrodes, improving touch detection. In addition, the increased capacitive coupling between the object and ground reduces the amount of charge that couples back onto nearby sense electrodes, which can reduce the negative pixel that can occur at those electrodes and reduce the number of touch detection errors. The one or more ground bars can be formed in the same layer as the drive electrode.
