# US 2013/0155364 A1 · Method of reducing parasitic capacitance of liquid crystal display device and liquid crystal display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155364 A1 - Document ID: US20130155364A1 - Status: Published application - Kind: A1 - Application number: 13/380,886 - Filed: 2011-12-16 - Published: 2013-06-20 - Earliest claimed: 2011-12-14 - Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Inventors: Chengcai Dong; Jehao Hsu; Jingfeng Xue; Xiaohui Yao - Web page: https://patentgrep.com/patent/US20130155364A1 ## CPC - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/136204: {Arrangements to prevent high voltage or static electricity failures} - G02F 1/134318: {having a patterned common electrode} - G02F 1/13606: {having means for reducing parasitic capacitance} - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A method of reducing parasitic capacitance of liquid crystal display device is disclosed where the liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate comprises data lines and a first transparent electrode, and the second substrate is provided with a second transparent electrode. The method comprises the following steps: A. by means of photolithography and patterning, the second transparent electrode is separated into a primary second transparent electrode and a secondary second transparent electrode; B. offering the secondary second transparent electrode the same signal to the relevant data line. The invention further relates to a liquid crystal display device and the parasitic capacitance in the data lines of the liquid crystal display device can be diminished. ## Claims ### Claim 1 A method of reducing parasitic capacitance of liquid crystal display device, where the liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer disposed in between the first substrate and the second substrate, the first substrate comprises data lines and a first transparent electrode, and the second substrate is provided with a second transparent electrode, characterized in that: the method comprises the following steps: A. by means of photolithography and patterning, the second transparent electrode being separated into a primary second transparent electrode and a secondary second transparent electrode; B. offering the secondary second transparent electrode the same signal inputted to the relevant data line; the secondary second transparent electrode being located at a location on the second substrate that corresponds to the relevant data line, and the primary second transparent electrode being located aside to the location on the second substrate that corresponds to the relevant data line; the step B, more specifically, to connect the secondary second transparent electrode to the signal input of the relevant data line, or to the relevant data line. ### Claim 2 A method of reducing parasitic capacitance of liquid crystal display device, where the liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer disposed in between the first substrate and the second substrate, the first substrate comprises data lines and a first transparent electrode, and the second substrate is provided with a second transparent electrode, characterized in that: the method comprises the following steps: A. by means of photolithography and patterning, the second transparent electrode being separated into a primary second transparent electrode and a secondary second transparent electrode; B. offering the secondary second transparent electrode the same signal inputted to the relevant data line; the secondary second transparent electrode being located at a location on the second substrate that corresponds to the relevant data line, and the primary second transparent electrode being located aside to the location on the second substrate that corresponds to the relevant data line. ### Claim 3 (depends on 2) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 2, characterized in that: the step B specifically is: to connect the second transparent electrode to the signal input of the relevant data line. ### Claim 4 (depends on 2) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 2, characterized in that: the step B specifically is: to connect the second transparent electrode to the relevant data line. ### Claim 5 (depends on 4) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 4, characterized in that: the connection between the second transparent electrode and the relevant data line is specifically embodied by connecting the second transparent electrode to the relevant data line through a transfer. ### Claim 6 (depends on 5) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 5, characterized in that: the transfer is disposed at an inactive area of the liquid crystal display device. ### Claim 7 (depends on 4) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 4, characterized in that: the connection between the second transparent electrode and the relevant data line is specifically embodied by connecting the second transparent electrode to the relevant data line through a conductive post. ### Claim 8 (depends on 7) The method of reducing parasitic capacitance of liquid crystal display device as claimed in claim 7, characterized in that: the conductive post is disposed at an active area of the liquid crystal display device. ### Claim 9 A liquid crystal display device, comprising: a first substrate, a second substrate and a liquid crystal layer disposed in between the first substrate and the second substrate, the first substrate comprising data lines and a first transparent electrode, and the second substrate being provided with a second transparent electrode, characterized in that: the second transparent electrode comprises a primary second transparent electrode and a secondary second transparent electrode, wherein the secondary second transparent electrode is to receive the signal of the relevant data line and is located at a location on the second substrate that corresponds to the relevant data line while the primary second transparent electrode is located aside to the location on the second substrate that corresponds to the relevant data line. ### Claim 10 (depends on 9) The liquid crystal display device as claimed in claim 9, characterized in that: the secondary second transparent electrode is connected to the signal input of the relevant data line. ### Claim 11 (depends on 9) The liquid crystal display device as claimed in claim 9, characterized in that: the secondary second transparent electrode is connected to the relevant data line. ### Claim 12 (depends on 11) The liquid crystal display device as claimed in claim 11, characterized in that: the secondary second transparent electrode is connected to the relevant data line through a transfer. ### Claim 13 (depends on 12) The liquid crystal display device as claimed in claim 12, characterized in that: the transfer is disposed at an inactive area of the liquid crystal display device. ### Claim 14 (depends on 11) The liquid crystal display device as claimed in claim 11, characterized in that: the secondary second transparent electrode is connected to the relevant data line through a conductive post. ### Claim 15 (depends on 14) The liquid crystal display device as claimed in claim 14, characterized in that: the conductive post is disposed at an active area of the liquid crystal display device.