# US 10,120,219 B2 · Driver circuit on transparent substrate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,120,219 B2 - Document ID: US10120219B2 - Status: Granted - Kind: B2 - Application number: 15/145,028 - Filed: 2016-05-03 - Published: 2016-08-25 - Granted: 2018-11-06 - Earliest claimed: 2011-11-21 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Takahiro Ochiai; Yuki Kuramoto; Masahiro Hoshiba - Web page: https://patentgrep.com/patent/US10120219B2 ## CPC - G02F 1/13306: {Circuit arrangements or driving methods for the control of single liquid crystal cells (G02F1/132, G02F1/133382 take precedence)} - G02F 1/1339: Gaskets; Spacers; Sealing of cells - G02F 1/1341: Filling or closing of cells - G02F 1/13454: {Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence)} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G11C 19/28: using semiconductor elements (G11C19/14, G11C19/36 take precedence) - H10D 30/6729: {characterised by the electrodes} - H10D 64/257: {for lateral devices wherein the source or drain electrodes are characterised by top-view geometrical layouts, e.g. interdigitated, semi-circular, annular or L-shaped electrodes (source or drain electrodes of TFTs H10D30/673)} - G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit - 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 - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G11C: STATIC STORES (semiconductor memory devices H10B) - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate. ## Claims ### Claim 1 A driver circuit formed on a transparent substrate, comprising: an output circuit outputting an output signal to a scanning signal line formed on the transparent substrate, wherein the output circuit includes a main thin film transistor and a capacitor, the main thin film transistor has a channel area and a light transmittance portion, the channel area includes a semiconductor film, a comb-like source and drain electrodes engaged with each other, and a gate electrode, the capacitor has a first conductive film and a second conductive film opposite to the first conductive film, the light transmittance portion is higher in light transmittance than the first conductive film or the second conductive film, and the light transmittance portion is formed in the channel area. ### Claim 2 (depends on 1) The driver circuit according to claim 1, wherein the channel area is divided into a first channel area and second channel area, the light transmittance portion is provided between the first channel area and second channel area. ### Claim 3 (depends on 2) The driver circuit according to claim 2, wherein the first and second channel areas are formed into a crank shape as a whole. ### Claim 4 (depends on 1) The driver circuit according to claim 1, wherein the light transmission portion is surrounded by a gate signal line of the main thin film transistor in at least three ways in planar view. ### Claim 5 (depends on 1) The driver circuit according to claim 1, wherein the light transmission portion is surrounded by at least one of a source signal line and a drain signal line of the main thin film transistor in at least three ways in planar view. ### Claim 6 (depends on 1) The driver circuit according to claim 1, wherein the light transmission portion is surrounded by the first and second conductive films in at least three ways in planar view. ### Claim 7 A driver circuit formed on a thin film transistor substrate, comprising: an output circuit outputting an output signal to a scanning signal line formed on the thin film transistor substrate, wherein the output circuit includes a main thin film transistor and capacitor, the main thin film transistor has a channel area and a light transmittance portion, the channel area includes a semiconductor film, a comb-like source and drain electrodes engaged with each other, and a gate electrode, the capacitor has a first conductive film and a second conductive film opposite to the first conductive film, the light transmittance portion is higher in light transmittance than the first conductive film or the second conductive film, and the light transmittance portion is formed in the capacitor. ### Claim 8 (depends on 7) The driver circuit according to claim 7, wherein the capacitor is divided into a first capacitor and a second capacitor, the light transmittance portion is provided in the first capacitor and the second capacitor. ### Claim 9 (depends on 7) The driver circuit according to claim 7, wherein the light transmission portion is surrounded by a gate signal line of the main thin film transistor in at least three ways in planar view. ### Claim 10 (depends on 7) The driver circuit according to claim 7, wherein the light transmission portion is surrounded by at least one of a source signal line and a drain signal line of the main thin film transistor in at least three ways in planar view. ### Claim 11 (depends on 7) The driver circuit according to claim 7, wherein the channel area has a first channel area and a second channel area, the first and second channel areas are formed into a crank shape as a whole. ### Claim 12 (depends on 7) The driver circuit according to claim 7, wherein the light transmission portion is surrounded by the first and second conductive films in at least three ways in planar view.