# US 2023/0141877 A1 · Image display method of display device, image display method of display system, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0141877 A1 - Document ID: US20230141877A1 - Status: Published application - Kind: A1 - Application number: 17/982,274 - Filed: 2022-11-07 - Published: 2023-05-11 - Earliest claimed: 2021-11-08 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Soma YAMADA - Web page: https://patentgrep.com/patent/US20230141877A1 ## CPC - G09G 3/001: {using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP)} - 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 5/006: {Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04)} - H04N 9/3141: {Constructional details thereof (details not peculiar to the presence of an electronic spatial light modulator G03B21/14)} - H04N 9/3179: {Video signal processing therefor} - H04N 9/3194: {including sensor feedback} - G03B 21/145: {Housing details, e.g. position adjustments thereof} - G09G 2370/16: Use of wireless transmission of display information - G09G 2370/20: Details of the management of multiple sources of image data - G09G 2370/22: Detection of presence or absence of input display information or of connection or disconnection of a corresponding information source - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract There is provided an image display method of a display device, the image display method including displaying a first image based on a first image signal received by wired communication, and starting displaying a second image based on a second image signal received by wireless communication, when detecting that the first image signal by the wired communication is not received. ## Claims ### Claim 1 An image display method of a display device, the image display method comprising: displaying a first image based on a first image signal received by wired communication; and starting displaying a second image based on a second image signal received by wireless communication, when detecting that the first image signal by the wired communication is not received. ### Claim 2 (depends on 1) The image display method of the display device according to claim 1, further comprising, finishing displaying the second image and starting displaying the first image, when the first image signal is received by the wired communication while the second image is displayed. ### Claim 3 An image display method of a display system, the image display method comprising: transmitting a first image signal from an interface device to a display device by wired communication, when the interface device is wire-connected to the display device; displaying, with the display device, a first image based on the first image signal received by the wired communication; and starting displaying a second image based on a second image signal received by wireless communication, when the display device detects that the first image signal by the wired communication is not received. ### Claim 4 (depends on 3) The image display method of the display system according to claim 3, further comprising transmitting the second image signal from the interface device to the display device by the wireless communication. ### Claim 5 (depends on 4) The image display method of the display system according to claim 4, further comprising receiving a third image signal with the interface device, wherein the transmitting the first image signal from the interface device to the display device by the wired communication includes transmitting the first image signal based on the third image signal with the interface device, and the transmitting the second image signal from the interface device to the display device by the wireless communication includes transmitting the second image signal based on the third image signal with the interface device. ### Claim 6 A display device comprising: a panel or a lens; and one or more processors configured to execute: displaying, with the panel or the lens, a first image based on a first image signal received by wired communication; and starting displaying a second image based on a second image signal received by wireless communication, when detecting that the first image signal by the wired communication is not received.