News Column

Researchers Submit Patent Application, "Touch Liquid Crystal Display Device", for Approval

May 21, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors WANG, Lihua (Shanghai, CN); YAO, Qijun (Shanghai, CN); MA, Jun (Shanghai, CN); MA, Conghua (Shanghai, CN); ZHAO, Lijun (Shanghai, CN); YU, Quanpeng (Shanghai, CN), filed on January 8, 2014, was made available online on May 8, 2014.

The patent's assignee is Shanghai Tianma Micro-Electronics Co., Ltd.

News editors obtained the following quote from the background information supplied by the inventors: "Touch panels, as input mediums, can provide simple, convenient and natural human-computer interactions at present. Therefore, touch panels are used more and more in many electronic products such as mobile phones, laptops, MP3/MP4 players and the like. In order to reduce the cost of an electronic device and make the electronic device lighter and thinner, a touch panel is generally integrated into the liquid crystal display panel.

"In order to make the liquid crystal display with touch function lighter and thinner, an in cell touch display is developed in the prior art, in which the touch panel is integrated with the liquid crystal display panel. However, the process for manufacturing the in cell touch liquid crystal display apparatus in the prior art is complex."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "Certain embodiments of the present invention relate to a touch liquid crystal display device. In some embodiments, the touch liquid crystal display device includes a first substrate and a second substrate, the first substrate and the second substrate are opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate comprises a touch layer disposed on a surface of the first substrate facing the liquid crystal layer, an insulating layer disposed on a surface of the touch layer and covering the touch layer, and a pixel array structure disposed on a surface of the insulating layer facing away from the touch layer.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a simplified structural diagram of an in-cell touch display in the prior art;

"FIG. 2 is a simplified structural diagram of a touch liquid crystal display device according to an embodiment of the present invention;

"FIG. 3 is a simplified structural diagram of part of driving electrodes or part of sensing electrodes in a touch layer in the touch liquid crystal display device according to an embodiment of the present invention;

"FIG. 4A is a simplified structural diagram of a first substrate in a touch liquid crystal display device according to an embodiment of the present invention; FIG. 4B is a simplified structural diagram of the first substrate in the touch liquid crystal display device according to another embodiment of the present invention;

"FIG. 5 is a schematic diagram of an ideal equivalent circuit of the touch liquid crystal display device according to an embodiment of the present invention;

"FIG. 6 is a schematic diagram of an actual equivalent circuit of the touch liquid crystal display device according to an embodiment of the present invention;

"FIG. 7 are simplified diagrams for comparing the structure of the driving electrodes or the sensing electrodes in the prior art and the structure of the driving electrodes or the sensing electrodes according to another embodiment of the present invention, where FIG. 7A illustrates a structural schematic diagram of the driving electrodes or the sensing electrodes in the prior art, and FIG. 7B illustrates a structural schematic diagram of the driving electrodes or the sensing electrodes according to another embodiment of the present invention;

"FIG. 8 is a simplified structural diagram of a touch layer in a touch liquid crystal display device according to another embodiment of the present invention;

"FIG. 9 is a simplified structural diagram of a common electrode layer in the touch liquid crystal display device according to another embodiment of the present invention;

"FIG. 10 is a simplified structural diagram of a touch layer in a touch liquid crystal display device according to another embodiment of the present invention; and

"FIG. 11 is a simplified structural diagram of a common electrode layer in the touch liquid crystal display device according to another embodiment of the present invention."

For additional information on this patent application, see: WANG, Lihua; YAO, Qijun; MA, Jun; MA, Conghua; ZHAO, Lijun; YU, Quanpeng. Touch Liquid Crystal Display Device. Filed January 8, 2014 and posted May 8, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=4717&p=95&f=G&l=50&d=PG01&S1=20140501.PD.&OS=PD/20140501&RS=PD/20140501

Keywords for this news article include: Shanghai Tianma Micro-Electronics Co. Ltd.

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Source: Electronics Newsweekly


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