A display panel and its driving method
A display panel, column-oriented technology, applied in instruments, computing, electrical and digital data processing, etc., can solve problems such as difference, abnormal potential of touch electrode 5, voltage difference, etc.
Active Publication Date: 2020-08-04
NANJING CEC PANDA LCD TECH
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Problems solved by technology
[0006] However, when the touch electrode is disconnected near 104, the scan line that can pull up the potential of the touch electrode 5 to offset the pull-down of the current scan line to the potential of the touch electrode 5 is located in the next-level touch electrode, and cannot The offset is formed, causing the potential of the touch electrode 5 to be abnormal, which will eventually cause the voltage difference near the touch electrode disconnection 104 to be different from other areas, resulting in horizontal stripes near the touch electrode junction.
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[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
[0052] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. Here, when a first element is described as being "connected" to a second element, the first element may be directly connected to the second element, or indirectly connected to the second element via one or more additional elements. Further, certain elements not necessary for a full understandin...
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A display panel and a drive method thereof. The display panel comprises multiple control circuit modules (105). Each control circuit module (105) is connected to two adjacent touch electrode blocks (102, 103) in a column direction, and is used to receive a last-row scanning signal of the preceding one of the two adjacent touch electrode blocks (102, 103) and a first-row scanning signal of the succeeding one of the two touch adjacent electrode blocks. The control circuit module (105) is turned off when the last-row scanning signal and the first-row scanning signal are both at low electric levels so as to control the two adjacent touch electrode blocks (102, 103) to be electrically disconnected. The control circuit module is turned on when the last-row scanning signal and the first-row scanning signal are both at high electric levels so as to control the two adjacent touch electrode blocks (102, 103) to be electrically connected. The display panel resolves the issue of horizontal stripes formed near a boundary of touch electrodes, and is widely applicable to various pixel structures and panel architectures.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a driving method thereof. Background technique [0002] The structure of a conventional self-contained in-cell touch display panel is as follows: figure 1 shown. The touch electrode 5 is divided into several independent touch electrode blocks, each touch electrode block includes a plurality of pixel units, and each touch electrode block is connected to the IC by a touch signal transmission line 4 . When in the display stage, the touch signal transmission line 4 inputs the common electrode signal, the touch electrode 5 is used as a common electrode, and an electric field is formed between the touch electrode 5 and the pixel electrode 8 to drive the liquid crystal display. When in the touch stage, the touch signal transmission line 4 inputs the touch sensing signal, and the touch electrode 5 receives the change of the external electric field to genera...
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IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/0416
Inventor 舒强黄威徐竹青
Owner NANJING CEC PANDA LCD TECH