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Driving method and driving device of touch display device and touch display device

A technology of a touch display device and a driving method, which is applied to the input/output process of data processing, instruments, electrical digital data processing, etc. Display Quality, Shorten Duration, Increase Duration Effects

Pending Publication Date: 2022-04-12
XIAMEN TIANMA MICRO ELECTRONICS
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  • Description
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Problems solved by technology

However, in order to provide sufficient touch sensing time, the vertical blanking interval needs to be widened. In the case of a fixed frame rate (Frame Rate), the transmission rate of display data needs to be greatly increased, which will affect the touch display device. Transmission lines, bus bars, and display driver chips have high requirements, which will virtually increase the cost of touch display devices

Method used

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  • Driving method and driving device of touch display device and touch display device
  • Driving method and driving device of touch display device and touch display device
  • Driving method and driving device of touch display device and touch display device

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, rather than to limit the present invention. In addition, it should be noted that, for the convenience of description, only some parts related to the present invention are shown in the drawings but not all structures.

[0029] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of the steps can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. T...

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Abstract

The embodiment of the invention discloses a driving method of a touch display device, a driving device of the touch display device and the touch display device. The driving method of the touch display device comprises a plurality of image frames; the same image frame comprises a touch stage and a display stage; in the touch stage, touch scanning signals are provided for the touch units, and touch detection signals of the touch units are received in a one-to-one correspondence mode; in the display stage, the display unit is subjected to display driving; wherein the touch stage of the same image frame comprises M touch frames; the touch frame comprises at least one touch sub-stage; in the same image frame, the value range of the ratio K of the total duration of the touch control stage to the total duration of the display stage is 0.5 M / (16.67-0.5 M) < = K < = M / (5.56-M), and M > = 1. According to the embodiment of the invention, the time duration of the touch stage in the image frame is shortened, and the time duration of the display stage in the image frame is relatively increased, so that the touch and display requirements of the touch display device are met.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular to a method for driving a touch display device, a driving device thereof, and a touch display device. Background technique [0002] With the progress and development of touch-sensing technology, touch-sensitive displays have been widely used in various electronic devices to replace traditional keyboards, mice and other input devices through touch-sensing technology, thereby realizing a more direct human-machine interface. [0003] In the prior art, the driving method for a touch display device having dual functions of touch and display is to perform touch sensing during a vertical blanking (Vertical Blanking) interval of display driving. However, in order to provide sufficient touch sensing time, the vertical blanking interval needs to be widened. In the case of a fixed frame rate (Frame Rate), the transmission rate of display data needs to be greatly ...

Claims

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Application Information

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IPC IPC(8): G06F3/041
Inventor 陈锦兴马郁平黄建才
Owner XIAMEN TIANMA MICRO ELECTRONICS
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