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- Nachgewiesen in: USPTO Patent Grants
- Sprachen: English
- Patent Number: 9,904,424
- Publication Date: February 27, 2018
- Appl. No: 14/884840
- Application Filed: October 16, 2015
- Assignees: Raydium Semiconductor Corporation (Hsinchu County, TW)
- 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 first conductive layer, a source electrode, and a drain electrode are formed simultaneously, and the first conductive layer is only disposed out of an active area of the in-cell mutual-capacitive touch panel, and the second conductive layer is connected with a transparent conductive layer coupled to a common voltage, the second conductive layer and the transparent conductive layer are both disposed above the source electrode; the second conductive layer and the transparent conductive layer are connected through a via above the source electrode; 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 horizontal traces of a first direction touch electrode and horizontal traces of a multi-function electrode are disposed at both an upper-side and a lower-side out of the active area of the in-cell mutual-capacitive touch panel respectively, and the horizontal traces of the multi-function electrode are closer to the active area of the in-cell mutual-capacitive touch panel than the horizontal traces of the first direction touch electrode; at least one driving integrated circuit (IC) is disposed out of the active area of the in-cell mutual-capacitive touch panel.
- Claim: 2. The in-cell mutual-capacitive touch panel of claim 1 , wherein at least one trace is disposed at a right-side and/or a left-side out of the active area of the in-cell mutual-capacitive touch panel, one terminal of the trace is coupled to the horizontal traces of first direction touch electrode disposed at the lower-side out of the active area of the in-cell mutual-capacitive touch panel.
- Claim: 3. The in-cell mutual-capacitive touch panel of claim 2 , wherein another terminal of the trace is coupled to at least one first direction touch electrode disposed in the active area of the in-cell mutual-capacitive touch panel.
- Claim: 4. The in-cell mutual-capacitive touch panel of claim 3 , wherein at least one perpendicular trace extends from the horizontal traces of multi-function electrode, and the horizontal traces and the perpendicular trace of multi-function electrode surround the active area of the in-cell mutual-capacitive touch panel, the perpendicular trace of multi-function electrode is disconnected at a specific position for the trace passing through.
- Claim: 5. The in-cell mutual-capacitive touch panel of claim 2 , wherein another terminal of the trace is coupled to the horizontal traces of first direction touch electrode disposed at the upper-side out of the active area of the in-cell mutual-capacitive touch panel.
- Claim: 6. The in-cell mutual-capacitive touch panel of claim 5 , wherein at least one perpendicular trace extends from the horizontal traces of multi-function electrode, and the horizontal traces and the perpendicular trace of multi-function electrode surround the active area of the in-cell mutual-capacitive touch panel, the perpendicular trace of multi-function electrode is not disconnected.
- Claim: 7. The in-cell mutual-capacitive touch panel of claim 1 , wherein at least one horizontal trace of multi-function electrode enters into the at least one driving integrated circuit.
- Claim: 8. The in-cell mutual-capacitive touch panel of claim 1 , wherein the first conductive layer and the second conductive layer are used for bridging a first direction electrode and used for bridging a multi-function electrode respectively at the upper-side out of the active area of the in-cell mutual-capacitive touch panel; the second conductive layer and the transparent conductive layer are used for bridging the first direction electrode, used for bridging the multi-function electrode, and used for bridging a second direction electrode respectively at the lower-side out of the active area of the in-cell mutual-capacitive touch panel; the at least one driving integrated circuit has more than two sets of first direction touch 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.
- Claim: 9. The in-cell mutual-capacitive touch panel of claim 8 , wherein at least two traces of the second conductive layer are aligned in parallel within the active area of the in-cell mutual-capacitive touch panel.
- Claim: 10. The in-cell mutual-capacitive touch panel of claim 8 , wherein the first direction touch electrode, the multi-function electrode, and the second direction touch electrode cover different parts of the plurality of pixels, and the multi-function electrode is disposed between the first direction touch electrode and the second direction touch electrode.
- Claim: 11. The in-cell mutual-capacitive touch panel of claim 10 , wherein transparent conductive layers of the pixels in the coverage of the first direction touch electrode are connected to each other, transparent conductive layers of the pixels in the coverage of the second direction touch electrode are connected to each other, and transparent conductive layers of the pixels in the coverage of the multi-function electrode are connected to each other.
- Claim: 12. The in-cell mutual-capacitive touch panel of claim 8 , wherein the first direction touch electrode is a transmitter electrode and the second direction touch electrode is a receiver electrode, or the first direction touch electrode is the receiver electrode and the second direction touch electrode is the transmitter electrode.
- Claim: 13. The in-cell mutual-capacitive touch panel of claim 1 , wherein the in-cell mutual-capacitive touch panel is suitable for displays using in-plane switching liquid crystal (IPS) technology, fringe field switching (FFS) technology, or advanced hyper-viewing angle (AHVA) technology.
- Claim: 14. The in-cell mutual-capacitive touch panel of claim 1 , wherein the color filtering layer comprises a color filter and a black matrix resist, and the black matrix resist has good light resistance.
- Claim: 15. The in-cell mutual-capacitive touch panel of claim 14 , wherein the first conductive layer and the second conductive layer are disposed under the black matrix resist.
- Claim: 16. The in-cell mutual-capacitive touch panel of claim 1 , wherein the first conductive layer and the second conductive layer are coupled or not.
- Claim: 17. The in-cell mutual-capacitive touch panel of claim 1 , wherein the first conductive layer and the second conductive layer are aligned horizontally, perpendicularly, or in a mesh type.
- Claim: 18. The in-cell mutual-capacitive touch panel of claim 1 , wherein the second conductive layer is disposed above the transparent conductive layer.
- Claim: 19. The in-cell mutual-capacitive touch panel of claim 1 , wherein the second conductive layer is disposed under the transparent conductive layer.
- Claim: 20. The in-cell mutual-capacitive touch panel of claim 1 , wherein the transparent conductive layer is an indium tin oxide (ITO) layer.
- Patent References Cited: 2004/0241924 December 2004 Chen ; 2008/0117182 May 2008 Um ; 2008/0150901 June 2008 Lowles ; 2009/0167703 July 2009 You ; 2010/0053115 March 2010 Kim ; 2011/0250713 October 2011 Kawasaki ; 2012/0313114 December 2012 Park ; 2013/0076996 March 2013 Misaki ; 2014/0063393 March 2014 Zhong ; 2014/0071360 March 2014 Chang ; 2014/0077213 March 2014 Zhang ; 2014/0087527 March 2014 Huang ; 2014/0111476 April 2014 You ; 2014/0118642 May 2014 Wang ; 2014/0118666 May 2014 Lee ; 2014/0293144 October 2014 Bae
- Primary Examiner: Pham, Viet
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