# US 11,308,869 B2 · Image light generation module and image display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,869 B2 - Document ID: US11308869B2 - Status: Granted - Kind: B2 - Application number: 17/031,857 - Filed: 2020-09-24 - Published: 2021-04-01 - Granted: 2022-04-19 - Earliest claimed: 2019-09-26 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Hidetoshi Yamamoto; Yuiga Hamade - Web page: https://patentgrep.com/patent/US11308869B2 ## CPC - G09G 3/002: {to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT} - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - G09G 3/16: by control of light from an independent source - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 2300/0426: Layout of electrodes and connections - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - G09G 2340/0464: Positioning - 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) ## Abstract An image light generation module according to the present disclosure includes a first panel configured to emit first image lighting a red wavelength region not having polarization characteristics, a second panel configured to emit second image light in a blue wavelength region not having polarization characteristics, a third panel configured to emit third image light in a green wavelength region not having polarization characteristics, and a color combining prism configured to emit combined light obtained by combining the first image light, the second image light, and the third image light. The first panel, the second panel, and the third panel each include a pixel structure in which a plurality of pixels are disposed, and aperture ratios of the pixels of the first panel, the second panel, and the third panel differ from each other. ## Claims ### Claim 1 An image light generation module comprising: a first panel configured to emit first image light including a red wavelength region, the first image light not having polarization characteristics; a second panel configured to emit second image light including a green wavelength region, the second image light not having polarization characteristics; a third panel configured to emit third image light including a blue wavelength region, the third image light not having polarization characteristics; and a color combining prism configured to emit combined light obtained by combining the first image light, the second image light, and the third image light, wherein the first panel includes a plurality of pixels that has a first aperture, the second panel includes a plurality of pixels that has a second aperture, the third panel includes a plurality of pixels that has a third aperture, an area of the first aperture of all the pixels provided on the first panel is the same, an area of the second aperture of all the pixels provided on the second panel is the same, an area of the third aperture of all the pixels provided on the third panel is the same, the area of the first aperture, the area of the second aperture, and the area of the third aperture are different from each other. ### Claim 2 (depends on 1) The image light generation module according to claim 1, wherein the color combining prism includes an emitting surface configured to emit the combined light and in plan view of the emitting surface, at least a portion of each of first pixel light emitted from a first pixel of the first panel, second pixel light emitted from a second pixel of the second panel, and third pixel light emitted from a third pixel of the third panel overlaps. ### Claim 3 (depends on 1) The image light generation module according to claim 1, wherein the color combining prism includes an emitting surface configured to emit the combined light and in plan view of the emitting surface, a first central axis of first pixel light emitted from a first pixel of the first panel with the first central axis passing through a center of the first pixel, a second central axis of second pixel light emitted from a second pixel of the second panel with the second central axis passing through a center of the second pixel, and a third central axis of third pixel light emitted from a third pixel of the third panel with the third central axis passing through a center of the third pixel coincide with each other. ### Claim 4 (depends on 1) The image light generation module according to claim 1, wherein the first panel, the second panel, and the third panel have the same pixel pitch. ### Claim 5 (depends on 1) The image light generation module according to claim 1, wherein the first panel, the second panel, and the third panel are organic EL panels. ### Claim 6 (depends on 1) An image display device comprising: the image light generation module according to claim 1. ### Claim 7 (depends on 1) The image light generation module according to claim 1, further comprising: a first adhesive provided so as to bond between the first panel and a first surface of the color combining prism; a second adhesive provided so as to bond between the second panel and a second surface of the color combining prism; and a third adhesive provided so as to bond between the third panel and a third surface of the color combining prism.