Embedded touch device and detection method thereof
A technology of a touch-control device and a detection method, which can be applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of complex detection and high cost
Active Publication Date: 2019-05-17
NANJING CEC PANDA LCD TECH
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Problems solved by technology
Using traditional detection methods, the detection is complex and costly
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[0027] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0028] The invention is based on figure 1 and figure 2 The embedded touch device shown in the present invention proposes a device structure and a detection method for disconnection / short circuit of the touch electrodes and detection lines. like image 3 As shown, in the embedded touch device based on the FFS architecture, a plurality of scanning lines are distributed horizontally and horizontally, and a plurality of data lines are distributed vertically and longitudin...
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The invention relates to an embedded touch control device and a detection method thereof; the embedded touch control device comprises a display zone and a non-display zone surrounding the display zone; the display zone comprises a plurality of touch control electrodes arranged in an array, wherein each touch control electrode is connected with a touch control line; the non-display zone comprises a plurality of first group film transistor switches and a plurality of second group film transistor switches, wherein the grid electrode of the first group film transistor switch is connected with a switch voltage, the drain electrode is connected with a touch control line, and the source electrode is connected with a first detection voltage; the grid electrode of the second group film transistor switch is connected with a switch voltage, the drain electrode is connected with a touch control line, and the source electrode is connected with a second detection voltage; the touch control lines connected with touch control electrodes in odd lines and columns are connected with the first group film transistor switches; the touch control lines connected with touch control electrodes in odd column and even lines are connected with the second group film transistor switches; the touch control lines connected with touch control electrodes in even columns and odd lines are connected with the second group film transistor switches; the touch control lines connected with touch control electrodes in even lines and columns are connected with the first group film transistor switches.
Description
technical field [0001] The invention relates to the field of display technology, in particular to an embedded touch device and a detection method thereof. Background technique [0002] At present, small and medium-sized portable liquid crystal displays generally use a fringe field switching (Fringe Field Switching, FFS) liquid crystal display mode. In the FFS technology, generally, the pixel electrodes on the upper layer are in the shape of thin strips, and the COM electrodes in the lower layer are in the shape of planes. Because the pixel electrode covers the planar COM electrode, there is no need to use a special COM line to design the storage capacitor, which can effectively increase the pixel aperture ratio. In addition, the magnitude of the driving voltage mainly depends on the thickness of the insulating layer between the pixel electrode and the COM electrode, and is relatively less affected by the distance between the pixel electrodes. Therefore, the design of the s...
Claims
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IPC IPC(8): G06F3/041G02F1/13
CPCG02F1/1309G06F3/041
Inventor 周刘飞
Owner NANJING CEC PANDA LCD TECH