# US 10,311,612 B2 · Display device and method of controlling same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,311,612 B2 - Document ID: US10311612B2 - Status: Granted - Kind: B2 - Application number: 15/217,437 - Filed: 2016-07-22 - Published: 2017-02-02 - Granted: 2019-06-04 - Earliest claimed: 2015-07-28 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Masahiro Kamiyoshihara - Web page: https://patentgrep.com/patent/US10311612B2 ## CPC - G09G 3/3611: {Control of matrices with row and column drivers} - G06T 11/60: Creating or editing images; Combining images with text - G09G 2300/023: Display panel composed of stacked panels - G09G 2320/028: by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction - G09G 2320/068: for control of viewing angle adjustment - G09G 2358/00: Arrangements for display data security - G09G 2380/08: Biomedical applications - 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) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Provided is a display device including a first display unit, a second display unit arranged on a back side of the first display unit, a generation unit configured to perform predetermined image processing on first image data to generate second image data, and a control unit configured to select one of a plurality of display modes including a first display mode on which the first display unit displays an image based on the first image data and the second display unit displays an image based on the second image data, and a second display mode on which the first display unit and the second display unit display the image based on the first image data. ## Claims ### Claim 1 A display device comprising: a first display unit; a second display unit arranged on a back side of the first display unit; at least one processor; and at least one memory storing at least one program which, when executed by the at least one processor, causes the display device to: acquire first image data; select automatically a display mode based on contents of the first image data; control the first display unit to transmit light from the second display unit based on the first image data; generate second image data corresponding to the first image data based on the selected display mode; and control the second display unit so as to display an image based on the second image data, wherein in a case where a first display mode is selected, the image displayed based on the second image data is blurred more than in a case where a second display mode is selected. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the second image data is image data to be displayed on the second display unit in order to prevent a double image caused by pixels in same positions on the first display unit and on the second display unit being visually recognized as being in differing positions due to parallax. ### Claim 3 (depends on 1) The display device according to claim 1, wherein the first display mode is selected in a case where a change in brightness within an image of the first image data is greater than a threshold value, and the second display mode is selected in a case where the change in brightness within the image of the first image data is less than or equal to the threshold value. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the first display mode is selected in a case where an image of the first image data is formed of a text or a graphic pattern, and the second display mode is selected in a case where the image of the first image data is a natural image. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the content of the image of the first image data is determined through image analysis. ### Claim 6 (depends on 1) The display device according to claim 1, wherein in a case where the first image data includes additional information indicating the content of the image of the first image data, the determination of the content of the image of the first image data is performed based on the additional information. ### Claim 7 (depends on 1) The display device according to claim 1, wherein content for each area in an image of the first image data is specified in advance, and the selection of a display mode is performed based on the content specified for each area in the image of the first image data. ### Claim 8 (depends on 1) The display device according to claim 1, wherein a display mode for each area in an image of the first image data is specified, and the selection of a display mode is performed based on the display mode specified for each area in the image of the first image data. ### Claim 9 (depends on 1) The display device according to claim 1, wherein the first display unit is a liquid crystal panel, and a transmittance of the first display unit is controlled based on the first image data. ### Claim 10 (depends on 1) The display device according to claim 1, wherein the second display unit is formed of a backlight and a liquid crystal panel that modulates light from the backlight. ### Claim 11 (depends on 1) The display device according to claim 1, wherein the second display unit is an organic EL panel. ### Claim 12 A method of controlling a display device including a first display unit and a second display unit arranged on a back side of the first display unit, the method comprising the steps of: acquiring a first image data; selecting automatically a display mode based on contents of the first image data; controlling the first display unit to transmit light from the second display unit based on the first image data; generating second image data corresponding to the first image data based on the selected display mode; and controlling the second display unit so as to display an image based on the second image data, wherein in a case where a first display mode is selected, the image displayed based on the second image data is blurred more than in a case where a second display mode is selected. ### Claim 13 A non-transitory computer readable medium storing a program to cause a computer to execute each step of a method of controlling a display device including a first display unit and a second display unit arranged on a back side of the first display unit, the method including the steps of: acquiring a first image data; selecting automatically a display mode based on contents of the first image data; controlling the first display unit to transmit light from the second display unit based on the first image data; generating second image data corresponding to the first image data based on the selected display mode; and controlling the second display unit so as to display an image based on the second image data, wherein in a case where a first display mode is selected, the image displayed based on the second image data is blurred more than in a case where a second display mode is selected.