Touch control display panel, driving method and touch control display device
A technology for touch display panels and touch drive electrodes, which is applied in the fields of touch display devices and touch display panels, and can solve problems such as weakening of strength and lowering of touch detection precision, and achieve the effects of improving precision and enhancing strength
Active Publication Date: 2017-05-31
XIAMEN TIANMA MICRO ELECTRONICS +1
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Problems solved by technology
[0005] However, when the position where the finger touches the screen is located at the boundary area between the two touch driving electrodes, the strength of the signal detected from any one of the two touch driving electrodes will become weak (for example, about a touch one-third or less of the signal strength in the central area of the touch drive electrode), resulting in a decrease in the accuracy of touch detection
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[0033] The application 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 related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0035] figure 2 A schematic diagram of an embodiment of the touch display panel of the present application is shown.
[0036] Such as figure 2 As shown, the touch display panel may include a driving scanning circuit 21 and 2n touch driving electrode groups TE 1 ~TE 2n , n is a natural number...
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The invention discloses a touch control display panel, a driving method and a touch control display device. The touch control display panel comprises a drive scanning circuit and 2n touch control drive electrode sets, the drive scanning circuit comprises 2n drive signal lines, n first switch units and n second switch units, the n first switch units and the n second switch units are arranged alternately, and each touch control drive electrode set comprises a first touch control electrode and a second touch control drive electrode; the first touch control drive electrode in the ith touch control drive electrode unit is connected with the ith drive signal line, and the second touch control drive electrode in the ith touch control drive electrode set is connected with the ith drive signal line through a switch unit, i and n are natural numbers, and i is smaller than or equal to 2n. According to the scheme, the second touch control drive electrodes are scanned twice between two adjacent touch control subscanning periods, so that the boundary area between every two adjacent touch control drive electrodes becomes a center area of the corresponding touch control drive electrode set, and the precision of touch control detection is improved.
Description
technical field [0001] The present application generally relates to the field of display technology, and in particular to a touch display panel, a driving method and a touch display device. Background technique [0002] The touch display device can detect the coordinate position of the finger in the display screen plane of the touch display device through the touch electrodes, and perform corresponding display according to the coordinate position. [0003] In the current touch display device, the touch function is mainly realized by two layers of touch electrode layers (for example, a touch driving electrode layer and a touch sensing electrode layer), wherein each layer of touch electrode layer has multiple touch electrodes arranged in parallel. The touch electrodes of the two layers intersect in extending directions. Apply a touch excitation signal to each touch electrode (touch drive electrode) on one of the touch electrode layers. When the finger touches the screen of th...
Claims
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IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/0418G06F3/044
Inventor 唐艳芳苏凌志孙莹许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS