How to improve the response speed of the touch all-in-one? What are the responsiveness of the touch all-in-one? The response speed of the touch-one machine also refers to the refresh rate of the touch-one machine. The faster the refresh rate of the touch-one machine, the faster the response speed of the touch-one machine.
The touch-one refresh rate is the number of times the touch screen controller measures the touch in one second and reports it back to the host processor. The higher the refresh rate, the more x and y direction data coordinates the device collects in a shorter amount of time, providing a responsive user experience. Most consumer electronics products require a touch controller with a refresh rate greater than 100 Hz or about 10 ms. Specific applications such as digital tablet or POS cash registers even require a higher refresh rate to capture and recognize signatures and strokes that slide quickly.
For large screens, maintaining a fast refresh rate is challenging because the touch controller needs to scan a larger surface area, collect data from all nodes, and then process the data. The refresh rate is mainly affected by two major factors: the scanning speed of the screen and the processing speed of the scanned data. With the same sensor characteristics (3108 vs. 275), the number of nodes on a 17-inch screen is 11 times greater than that on a 5-inch screen. In order to maintain the user experience of the 5-inch screen, the 17-inch screen requires more powerful scanning and processing capabilities.
One way to solve the scanning problem is to make sure that the touch controller has enough receiving channels to scan the entire screen at once. Most touch screen stacks consist of a sensor pattern located under the cover glass, which contains a large number of "unit cells" arranged in the x and y directions, with the x direction for emission and the y direction. Used for receiving, or vice versa. The receive channel collects data and uses an analog-to-digital converter (ADC) to convert the mutual capacitance changes in each unit cell into digital data for the host to resolve the coordinates of the finger touch point. If the number of receive channels or ADCs is insufficient, multiple scans and longer times are required to scan the entire panel. This can result in fewer samples being taken in a given time, resulting in a poor user experience.
One way to help solve the processing problem is to equip the touch controller with a larger processor and to offload some of the computational tasks to the main processing unit of the system. This means sending the capacitor data to the host and running the algorithm on the application or graphics processor. One implementation measure is to scan the sensor with a touch screen controller, search for the first touch, and then transfer the image to the host processor. The host then processes the entire array, filters noise, finds touch coordinates, and tracks the finger ID. Parallel processing allows for a large number of digital operations on multi-gigahertz multi-core processors that act as touch screen and display host.
The touch-one refresh rate is the number of times the touch screen controller measures the touch in one second and reports it back to the host processor. The higher the refresh rate, the more x and y direction data coordinates the device collects in a shorter amount of time, providing a responsive user experience. Most consumer electronics products require a touch controller with a refresh rate greater than 100 Hz or about 10 ms. Specific applications such as digital tablet or POS cash registers even require a higher refresh rate to capture and recognize signatures and strokes that slide quickly.
For large screens, maintaining a fast refresh rate is challenging because the touch controller needs to scan a larger surface area, collect data from all nodes, and then process the data. The refresh rate is mainly affected by two major factors: the scanning speed of the screen and the processing speed of the scanned data. With the same sensor characteristics (3108 vs. 275), the number of nodes on a 17-inch screen is 11 times greater than that on a 5-inch screen. In order to maintain the user experience of the 5-inch screen, the 17-inch screen requires more powerful scanning and processing capabilities.
One way to solve the scanning problem is to make sure that the touch controller has enough receiving channels to scan the entire screen at once. Most touch screen stacks consist of a sensor pattern located under the cover glass, which contains a large number of "unit cells" arranged in the x and y directions, with the x direction for emission and the y direction. Used for receiving, or vice versa. The receive channel collects data and uses an analog-to-digital converter (ADC) to convert the mutual capacitance changes in each unit cell into digital data for the host to resolve the coordinates of the finger touch point. If the number of receive channels or ADCs is insufficient, multiple scans and longer times are required to scan the entire panel. This can result in fewer samples being taken in a given time, resulting in a poor user experience.
One way to help solve the processing problem is to equip the touch controller with a larger processor and to offload some of the computational tasks to the main processing unit of the system. This means sending the capacitor data to the host and running the algorithm on the application or graphics processor. One implementation measure is to scan the sensor with a touch screen controller, search for the first touch, and then transfer the image to the host processor. The host then processes the entire array, filters noise, finds touch coordinates, and tracks the finger ID. Parallel processing allows for a large number of digital operations on multi-gigahertz multi-core processors that act as touch screen and display host.
Mobile Flipchart Star Base,Aluminum Easel,Professional Flipchart Easel,Mobile And Versatile Magnetic Whiteboard
Dongguan Aoxing Audio Visual Equipment CO.,Ltd , https://www.aoxing-projectorscreen.com