In-cell mutual-capacitive touch panel and trace layout thereof
First Claim
1. An in-cell mutual-capacitive touch panel, comprising:
- a plurality of pixels, a laminated structure of each pixel comprising;
a substrate;
a thin-film transistor layer disposed above the substrate, a first conductive layer and a second conductive layer being integrated in the thin-film transistor layer, wherein the second conductive layer is connected with a transparent conductive layer coupled to a common voltage;
a liquid crystal layer, disposed above the thin-film transistor layer;
a color filtering layer, disposed above the liquid crystal layer; and
a glass layer, disposed above the color filtering layer;
wherein the first conductive layer and a part of the second conductive layer are used as bridges of a transmitter electrode and a multi-function electrode out of an upper-side of an active area of the in-cell mutual-capacitive touch panel;
another part of the second conductive layer and the transparent conductive layer are used as bridges of the transmitter electrode and the multi-function electrode out of a lower-side of the active area of the in-cell mutual-capacitive touch panel;
the in-cell mutual-capacitive touch panel is coupled to at least one driving IC having more than two sets of transmitter electrode pins and multi-function electrode pins;
the number of the at least one driving IC is determined according to a size of the in-cell mutual-capacitive touch panel, and the at least one driving IC is disposed out of the active area of the in-cell mutual-capacitive touch panel.
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Accused Products
Abstract
An in-cell mutual-capacitive touch panel having low RC loading and its trace layout are disclosed. A first conductive layer and a second conductive layer are used as bridge of TX electrode and MFL electrode above an active area of in-cell mutual-capacitive touch panel. The second conductive layer and a transparent conductive layer are used as bridge of TX electrode and MFL electrode at the lower-side out of the active area. Cooperated with at least one driving IC having more than two sets of TX electrode pins and MFL electrode pins and the number of the at least one driving IC is determined according to the size of the in-cell mutual-capacitive touch panel. At the same time, the second conductive layer has traces in parallel distributed in the same electrode area of the active area. Therefore, the RC loading of the in-cell mutual-capacitive touch panel of the invention can be largely reduced.
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Citations
19 Claims
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1. An in-cell mutual-capacitive touch panel, comprising:
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a plurality of pixels, a laminated structure of each pixel comprising; a substrate; a thin-film transistor layer disposed above the substrate, a first conductive layer and a second conductive layer being integrated in the thin-film transistor layer, wherein the second conductive layer is connected with a transparent conductive layer coupled to a common voltage; a liquid crystal layer, disposed above the thin-film transistor layer; a color filtering layer, disposed above the liquid crystal layer; and a glass layer, disposed above the color filtering layer; wherein the first conductive layer and a part of the second conductive layer are used as bridges of a transmitter electrode and a multi-function electrode out of an upper-side of an active area of the in-cell mutual-capacitive touch panel;
another part of the second conductive layer and the transparent conductive layer are used as bridges of the transmitter electrode and the multi-function electrode out of a lower-side of the active area of the in-cell mutual-capacitive touch panel;
the in-cell mutual-capacitive touch panel is coupled to at least one driving IC having more than two sets of transmitter electrode pins and multi-function electrode pins;
the number of the at least one driving IC is determined according to a size of the in-cell mutual-capacitive touch panel, and the at least one driving IC is disposed out of the active area of the in-cell mutual-capacitive touch panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An in-cell mutual-capacitive touch panel, comprising:
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a plurality of pixels, a laminated structure of each pixel comprising; a substrate; a thin-film transistor layer disposed above the substrate, a first conductive layer and a second conductive layer being integrated in the thin-film transistor layer, wherein the first conductive layer, a source electrode, and a drain electrode are formed of the same material using the same process on the same layer, and the first conductive layer is connected with a transparent conductive layer coupled to a common voltage, the transparent conductive layer is disposed above the first conductive layer; a liquid crystal layer, disposed above the thin-film transistor layer; a color filtering layer, disposed above the liquid crystal layer; and a glass layer, disposed above the color filtering layer. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification