# US 7,612,846 B2 · Electro-optical device, color filter substrate and electronic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,612,846 B2 - Document ID: US7612846B2 - Status: Granted - Kind: B2 - Application number: 11/427,450 - Filed: 2006-06-29 - Published: 2006-11-09 - Granted: 2009-11-03 - Earliest claimed: 2001-07-27 - Assignees: Seiko Epson Corporation - Inventors: Keiji Takizawa; Yoshihiro Otagiri - Web page: https://patentgrep.com/patent/US7612846B2 ## CPC - G02F 1/133555: {Transflectors} - G02F 1/133514: {Colour filters} - 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 reflective layer 212 having an aperture 212a for each pixel is formed on a first substrate 211, and a colored layer 214 for constituting a color filter is formed thereon. A surface protection layer 215 is formed on the colored layer 214, and a transparent electrode 216 is formed further thereon. The colored layer 214 is constituted so as to cover the aperture 212a in a two-dimensional direction, but overlaps only a part of a reflection surface in the pixel in a two-dimensional direction. ## Claims ### Claim 1 An electro-optical device comprising: a pair of substrates; an electro-optical substance layer disposed between the pair of substrates; a first pixel and a second pixel; a first colored layer disposed in the first pixel and a second colored layer disposed in the second pixel, the second colored layer having a different color than the first colored layer; and a first reflective layer disposed in the first pixel and a second reflective layer disposed in the second pixel; the first pixel including a first light transmitting region where the first reflective layer is not disposed in the first pixel; wherein the first colored layer is disposed in the first light transmitting region and overlaps less than an entirety of the first reflective layer; and wherein the first colored layer overlaps a greater two-dimensional area of the first reflective layer in plan view than a two-dimensional area of the second reflective layer overlapped by the second colored layer in plan view. ### Claim 2 (depends on 1) An electro-optical device according to claim 1, wherein the first colored layer is disposed so as to completely cover the first light transmitting region. ### Claim 3 (depends on 1) An electro-optical device according to claim 1, wherein the first colored layer is disposed in an expanding manner over the first reflective layer from the first light transmitting region. ### Claim 4 (depends on 1) An electro-optical device according to claim 1, wherein a thickness of a portion of the first colored layer disposed in the first light transmitting region is thicker than a thickness of a portion of the first colored layer that overlaps the first reflective layer. ### Claim 5 (depends on 1) An electro-optical device according to claim 1, wherein the second pixel includes a second light transmitting region where the second reflective layer is not disposed in the second pixel; and wherein an area of the first light transmitting region is identical to an area of the second light transmitting region. ### Claim 6 (depends on 1) An electronic apparatus comprising: an electro-optical device according to claim 1; and a control means for controlling the electro-optical device. ### Claim 7 (depends on 1) The electro-optical device according to claim 1, a first color filter non-information area being located in the first pixel at one side of the first light transmitting region and a second color filter non-formation area being located in the first pixel at a side of the first light transmitting region that is opposite from the one side. ### Claim 8 (depends on 7) The electro-optical device according to claim 7, the first light transmitting region being an aperture in the first reflective layer. ### Claim 9 (depends on 7) The electro-optical device according to claim 7, the first pixel having a rectangular shape that is elongated in a lengthwise direction, the first and second color filter non-formation areas being aligned in the lengthwise direction. ### Claim 10 (depends on 8) The electro-optical device according to claim 8, the first pixel having a rectangular shape that is elongated in a lengthwise direction, the first and second color filter non-formation areas being aligned in the lengthwise direction. ### Claim 11 (depends on 1) The electro-optical device according to claim 1, the first light transmitting region being an aperture in the first reflective layer. ### Claim 12 A color filter substrate comprising: a substrate; a plurality of pixels; a first colored layer having a first color disposed in a first pixel and a second colored layer having a second color that is different than the first color disposed in a second pixel; a first reflective layer disposed in the first pixel and a second reflective layer disposed in the second pixel; and a first light transmitting region where the first reflective layer is not disposed in the first pixel and a second light transmitting region where the second reflective layer is not disposed in the second pixel; wherein the first colored layer overlaps less than an entirety of the first reflective layer and the second colored layer overlaps less than an entirety of the second reflective layer; wherein the first colored layer overlaps a greater two-dimensional area of the first reflective layer in plan view than a two-dimensional area of the second reflective layer overlapped by the second colored layer in plan view. ### Claim 13 (depends on 12) The electro-optical device according to claim 12, a first color filter non-formation area being located in the first pixel at one side of the first light transmitting region and a second color filter non-formation area being located in the first pixel at a side of the first light transmitting region that is opposite from the one side. ### Claim 14 (depends on 13) The electro-optical device according to claim 13, the first light transmitting region being an aperture in the first reflective layer. ### Claim 15 (depends on 13) The electro-optical device according to claim 13, the first pixel having a rectangular shape that is elongated in a lengthwise direction, the first and second color filter non-formation areas being aligned in the lengthwise direction. ### Claim 16 (depends on 14) The electro-optical device according to claim 14, the first pixel having a rectangular shape that is elongated in a lengthwise direction, the first and second color filter non-formation areas being aligned in the lengthwise direction.