# US 6,724,456 B2 · 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 6,724,456 B2 - Document ID: US6724456B2 - Status: Granted - Kind: B2 - Application number: 10/100,036 - Filed: 2002-03-19 - Published: 2002-10-24 - Granted: 2004-04-20 - Earliest claimed: 2001-03-22 - Assignees: Citizen Watch Co., Ltd. - Inventors: Kiyoshi Kamiya - Web page: https://patentgrep.com/patent/US6724456B2 ## CPC - G02F 1/133509: {Filters, e.g. light shielding masks} - G02F 1/1345: Conductors connecting electrodes to cell terminals - G02F 1/1339: Gaskets; Spacers; Sealing of cells - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G02F 1/13456: {Cell terminals located on one side of the display only} - 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 liquid crystal display device has a liquid crystal layer (20) sandwiched between an upper substrate (1) having scanning electrodes (11) and a lower substrate (5) having opposite electrodes (13) and electrode driving ICs (2, 3, 4), mounted only at a side of the upper substrate (1), for driving the respective electrodes, in which connecting wirings (10) for connecting the scanning electrode driving ICs (3, 4) and the scanning electrodes (11) are disposed between an image display portion (14), which is provided on the inner side of a sealing portion (15) for bonding the substrates (1, 5) together, and the sealing portion (15). The connecting wirings (10) and the scanning electrodes (11) are electrically connected to each other at connecting regions (12) provided in the sealing portion (15), and a shielding (51) is provided between the image display portion (14) and the sealing portion (15). ## Claims ### Claim 1 A liquid crystal display device having a liquid crystal layer sandwiched between a pair of substrates each provided with electrodes and an electrode driving IC, mounted only at one side of either one of said pair of substrates, for driving said respective electrodes on said pair of substrates, comprising: a sealing portion for bonding said pair of substrates together; and connecting wirings for connecting said electrode driving IC and said electrodes on other substrate, wherein said connecting wirings are arranged between an image display portion provided on an inner side of said sealing portion and said sealing portion, wherein said connecting wirings and said electrodes on said other substrate are electrically connected to each other in connecting regions provided at said sealing portion, and wherein a shielding is provided between said image display portion and said sealing portion. ### Claim 2 A liquid crystal display device of reflection-type, having a liquid crystal layer sandwiched between a pair of substrates each provided with electrodes, an electrode driving IC, mounted only at one side of either one of said pair of substrates, for driving said respective electrodes on said pair of substrates, and a reflection layer, comprising: a sealing portion for bonding said pair of substrates together; and connecting wirings for connecting said electrode driving IC and said electrodes on other substrate, wherein said connecting wirings are arranged between an image display portion provided on an inner side of said sealing portion and said sealing portion, wherein said connecting wirings and said electrodes on said other substrate are electrically connected to each other at connecting regions provided in said sealing portion, and wherein said reflection layer is provided in a region other than a region between said image display portion and said sealing portion. ### Claim 3 A liquid crystal display device having a liquid crystal layer sandwiched between a pair of substrates each provided with electrodes, and an electrode driving IC, mounted only at one side of either one of said pair of substrates, for driving said respective electrodes on said pair of substrates, comprising: a sealing portion for bonding said pair of substrates together; and connecting wirings for connecting said electrode driving IC and said electrodes on other substrate, wherein said connecting wirings are arranged in said sealing portion, and wherein said connecting wirings and said electrodes on said other substrate are electrically connected to each other at connecting regions provided in said sealing portion. ### Claim 4 (depends on 1) The liquid crystal display device according to claim 1, wherein instead of providing said shielding, said electrode on said other substrate is formed to be thinner at a portion where said connecting wiring opposes said electrode, except said connecting region, than in said image display portion. ### Claim 5 (depends on 1) The liquid crystal display device according to claim 1, wherein said shielding is made of a low-reflection metal. ### Claim 6 (depends on 1) The liquid crystal display device according to claim 1, wherein said shielding is made of a black resin. ### Claim 7 (depends on 1) The liquid crystal display device according to claim 1, wherein said shielding is a member formed by printing. ### Claim 8 (depends on 1) The liquid crystal display device according to claim 1, further comprising: a polarizer to perform a display using a polarization property of said polarizer, wherein instead of providing said shielding, said polarizer is provided in a region other than a region between said image display portion and said sealing portion. ### Claim 9 (depends on 1) The liquid crystal display device according to claim 1, wherein instead of providing said shielding, said connecting wiring is provided with a low-reflection chrome layer. ### Claim 10 (depends on 1) The liquid crystal display device according to claim 1, wherein an external shape of said sealing portion matches an external shape of each side of said pair of substrates except the side where said electrode driving IC is provided. ### Claim 11 (depends on 1) The liquid crystal display device according to claim 1, wherein said respective electrodes on said pair of substrates are signal electrodes and scanning electrodes, and wherein said electrode driving IC comprises at least one signal electrode driving IC for driving said signal electrodes and at least one scanning electrode driving IC for driving said scanning electrodes. ### Claim 12 (depends on 11) The liquid crystal display device according to claim 11, wherein said scanning electrode driving IC comprises a plurality of scanning electrode driving ICs which are arranged in a manner to put said signal electrode driving IC therebetween. ### Claim 13 (depends on 11) The liquid crystal display device according to claim 11, wherein said scanning electrode driving IC is an IC driven by an oscillation power supply having a period in which a potential thereof changes with time. ### Claim 14 (depends on 12) The liquid crystal display device according to claim 12, wherein said plurality of scanning electrode driving ICs are consistad of two scanning electrode driving ICs, and wherein scanning electrodes connected to one of said scanning electrode driving ICs and scanning electrodes connected to other scanning electrode driving IC are alternately arranged.