# US 12,181,675 B2 · Augmented reality electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,675 B2 - Document ID: US12181675B2 - Status: Granted - Kind: B2 - Application number: 18/106,506 - Filed: 2023-02-07 - Published: 2023-09-21 - Granted: 2024-12-31 - Earliest claimed: 2022-03-17 - Assignees: Innolux Corporation - Applicants: InnoLux Corporation - Inventors: Chih-Lung Lin; Jian-Min Leu - Web page: https://patentgrep.com/patent/US12181675B2 ## CPC - G02B 27/0018: {with means for preventing ghost images (anti-reflection coatings G02B1/11)} - G02B 27/0172: {characterised by optical features} - G02B 26/06: for controlling the phase of light (G02B26/08 takes precedence {, measuring optical phase difference G01J9/00}) - G02B 27/0176: {characterised by mechanical features} - G02B 27/28: for polarising (used in stereoscopes G02B30/25) - G02B 27/286: {for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another (G02B5/3083 takes precedence; light guide coupling means utilising polarising elements G02B6/34)} - G02B 2027/0118: {comprising devices for improving the contrast of the display / brillance control visibility} - G02B 2027/012: {comprising devices for attenuating parasitic image effects} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract An augmented reality electronic device includes a light adjusting component. The light adjusting component includes a panel and a first quarter wave plate. The panel includes a first substrate, a second substrate and a medium layer disposed between the first substrate and the second substrate. The first quarter wave plate is disposed on a first side of the panel. ## Claims ### Claim 1 An augmented reality electronic device, comprising: a light adjusting component, comprising: a panel comprising a first substrate, a second substrate and a medium layer disposed between the first substrate and the second substrate; and a first quarter wave plate disposed on a first side of the panel, wherein the panel has a second side opposite to the first side, the first side has a first reflectivity, the second side has a second reflectivity, and the first reflectivity is greater than the second reflectivity, wherein the medium layer has an alignment direction, the first quarter wave plate has a first slow-axis direction, and the alignment direction is perpendicular to the first slow-axis direction. ### Claim 2 (depends on 1) The augmented reality electronic device according to claim 1, wherein the light adjusting component further comprises a phase compensation film disposed on the second side of the panel, wherein the phase compensation film has a second slow-axis direction, the first slow-axis direction of the first quarter wave plate is perpendicular to the second slow-axis direction of the phase compensation film. ### Claim 3 (depends on 2) The augmented reality electronic device according to claim 2, wherein a phase difference of the phase compensation film is less than a phase difference of the first quarter wave plate. ### Claim 4 (depends on 3) The augmented reality electronic device according to claim 3, wherein the first substrate is disposed between the medium layer and the first quarter wave plate, and the first substrate comprises a plurality of metal lines. ### Claim 5 (depends on 3) The augmented reality electronic device according to claim 3, wherein the second substrate is disposed between the medium layer and the phase compensation film. ### Claim 6 (depends on 1) The augmented reality electronic device according to claim 1, wherein the medium layer comprises a plurality of liquid crystal molecules. ### Claim 7 (depends on 1) The augmented reality electronic device according to claim 1, wherein the light adjusting component further comprises a first polarizer disposed on the first side of the panel, and the first quarter wave plate is disposed between the first substrate and the first polarizer. ### Claim 8 (depends on 1) The augmented reality electronic device according to claim 1, wherein the light adjusting component further comprises: a phase compensation film disposed on the second side of the panel; a first half wave plate disposed on the first side of the panel; and a second half wave plate disposed on the second side of the panel. ### Claim 9 (depends on 8) The augmented reality electronic device according to claim 8, wherein the first quarter wave plate is disposed between the first substrate and the first half wave plate, and the phase compensation film is disposed between the second substrate and the second half wave plate. ### Claim 10 (depends on 9) The augmented reality electronic device according to claim 9, wherein the light adjusting component further comprises: a first polarizer disposed on the first side of the panel; and a second polarizer disposed on the second side of the panel; wherein the first half wave plate is disposed between the first quarter wave plate and the first polarizer, and the second half wave plate is disposed between the phase compensation film and the second polarizer. ### Claim 11 (depends on 1) The augmented reality electronic device according to claim 1, further comprising a waveguide disposed on the first side of the panel. ### Claim 12 An augmented reality electronic device, comprising: a light adjusting component, comprising: a first substrate; a second substrate opposite to the first substrate; a medium layer disposed between the first substrate and the second substrate; a first quarter wave plate disposed on a first side of the first substrate; a second quarter wave plate disposed on a second side of the first substrate, wherein the second side is opposite to the first side, the second quarter wave plate is disposed between the first substrate and the medium layer; a first polarizer disposed on the first side of the first substrate; and a second polarizer disposed on the second side of the first substrate; wherein the first quarter wave plate is disposed between the first substrate and the first polarizer, and the second substrate is disposed between the medium layer and the second polarizer. ### Claim 13 (depends on 12) The augmented reality electronic device according to claim 12, wherein the first substrate comprises a plurality of metal lines. ### Claim 14 (depends on 13) The augmented reality electronic device according to claim 13, wherein the first quarter wave plate has a first slow-axis direction, the second quarter wave plate has a second slow-axis direction, the first slow-axis direction of the first quarter wave plate is perpendicular to the second slow-axis direction of the second quarter wave plate. ### Claim 15 (depends on 12) The augmented reality electronic device according to claim 12, wherein a reflectivity of the first substrate is greater than a reflectivity of the second substrate. ### Claim 16 (depends on 12) The augmented reality electronic device according to claim 12, wherein the light adjusting component further comprises: a first half wave plate disposed on the first side of the first substrate; and a second half wave plate disposed on the second side of the first substrate. ### Claim 17 (depends on 16) The augmented reality electronic device according to claim 16, wherein the first quarter wave plate is disposed between the first substrate and the first half wave plate, and the second quarter wave plate is disposed between the first substrate and the second half wave plate. ### Claim 18 (depends on 12) The augmented reality electronic device according to claim 12, further comprising a waveguide disposed on the first side of the first substrate.