# US 10,762,871 B2 · Image control method 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 10,762,871 B2 - Document ID: US10762871B2 - Status: Granted - Kind: B2 - Application number: 16/495,758 - Filed: 2017-04-13 - Published: 2020-04-09 - Granted: 2020-09-01 - Earliest claimed: 2017-04-13 - Assignees: NEC Display Solutions, Ltd. - Applicants: NEC Display Solutions, Ltd. - Inventors: Yu Sasaki - Web page: https://patentgrep.com/patent/US10762871B2 ## CPC - 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)} - G09G 5/005: {Adapting incoming signals to the display format of the display terminal} - G09G 5/14: Display of multiple viewports - G09G 2320/08: Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal - G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas - G09G 2340/12: Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels - G09G 2360/18: Use of a frame buffer in a display terminal, inclusive of the display panel - 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 display method includes: obtaining a composite image that was displayed immediately prior to when a video signal is lost, the composite image being an image in which a first image of an on-screen display (OSD) menu is combined with a display image that is based on the video signal before lost; after the video signal is lost, combining a second image of the OSD menu with the composite image to obtain a combined composite image; and displaying the combined composite image. ## Claims ### Claim 1 An image display method, comprising: obtaining a composite image that was displayed immediately prior to when a video signal is lost, the composite image comprising an image in which a first image of an on-screen display (OSD) menu is combined with a display image that is based on the video signal before being lost; after the video signal is lost, combining a second image of the OSD menu with the composite image to obtain a combined composite image; and displaying the combined composite image. ### Claim 2 (depends on 1) The image display method according to claim 1, further comprising: storing composite images of frames that were displayed, wherein the combining comprises combining a new image of the OSD menu with the composite image of a latest frame among the stored composite images of the frames. ### Claim 3 (depends on 2) The image display method according to claim 2, wherein the combining the new image is repeated until a setting process using the OSD menu is ended, in a state in which the video signal is lost. ### Claim 4 (depends on 1) The image display method according to claim 1, further comprising: determining that the video signal is lost when a resolution of the display image based on the video signal cannot be detected from a synchronization signal of the video signal. ### Claim 5 (depends on 1) The image display method according to claim 1, further comprising: before the image signal is not lost, storing data of a composite image of a first frame to be displayed in a first storage unit and storing, in a second storage unit, data of a display image of a second frame stored in the first storage unit, the second frame being a frame whose display image is displayed before the display image of the first frame is displayed; and after the video signal is lost, storing blank data in which all pixels are black to the first storage unit. ### Claim 6 (depends on 5) The image display method according to claim 5, wherein, when the blank data is stored in the first storage unit, the second image of the OSD menu is combined with the display image of the second frame stored in the second storage unit. ### Claim 7 An image display device, comprising: a processor coupled to a memory storing instructions, the processor being configured to: combine a first image of an on-screen display (OSD) menu with a display image that is based on a video signal before lost to obtain a composite image; and after the video signal is lost, combine a second image of the OSD menu with the composite image to obtain a combined composite image; and an image output unit that displays the combined composite image.