# US 10,320,962 B1 · Dual screen smartphone and portable devices with a full display screen > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,320,962 B1 - Document ID: US10320962B1 - Status: Granted - Kind: B1 - Application number: 15/959,126 - Filed: 2018-04-20 - Granted: 2019-06-11 - Earliest claimed: 2018-04-20 - Assignees: Zte Corporation - Applicants: ZTE Corporation - Inventors: Yong Chang - Web page: https://patentgrep.com/patent/US10320962B1 ## CPC - H04M 1/0266: {for a display module assembly} - G06F 3/1423: {controlling a plurality of local displays, e.g. CRT and flat panel display} - G06F 3/147: using display panels - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - H04M 1/0264: {for a camera module assembly} - G09G 2300/023: Display panel composed of stacked panels - G09G 2340/14: Solving problems related to the presentation of information to be displayed - G09G 2340/145: related to small screens - H04M 2250/12: including a sensor for measuring a physical value, e.g. temperature or motion - H04M 2250/16: including more than one display unit - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 Disclosed are dual screen smartphone devices with a high resolution full screen display. In some aspects, a dual display smartphone device includes a first display screen on a first face of the smartphone device operable to provide a high resolution, fully viewable visual display that occupies substantially 100% of the surface area of the first face; a second display screen on a second face of the smartphone device operable to provide a high resolution visual display while providing space for placing one or more cameras and sensors on the second face. ## Claims ### Claim 1 A dual display device, comprising: a first display screen fixed in position on a first face of the device to occupy substantially 100% of the surface area of the first face without leaving a space for placing a camera or a sensor outside the first display screen on the first face, wherein the first display screen is structured to provide a high resolution, fully viewable visual display for displaying images and providing touch sensing operations; a second display screen fixed in position on a second face of the device to occupy less than 100% of the surface area of the second face to provide one or more surface areas on the second face for holding sensor devices including a camera for capturing photos and videos, wherein the second display screen is structured to provide a fully viewable visual display for displaying images and providing touch sensing operations; and a controller coupled to control operations of the device including displaying and touch sensing operations on the first and second display screens, the controller operable to provide touch sensing operations on the first and second display screens to control the camera on the second face by using the first display screen as a live viewfinder in capturing a photo or video by the camera in a point-and-shoot camera operation and by using the second display screen as a live viewfinder in capturing a photo or video by the camera in a selfie camera operation, wherein the device is operable to manage tasks adapted to the first display and the second display screens simultaneously, including controlling a viewing setting for the first display screen based on touch control of the second display screen without obstructing viewability of content on the high resolution, fully viewable visual display of the first display screen. ### Claim 2 (depends on 1) The device of claim 1, wherein the first display screen is structured on the first side without a bezel. ### Claim 3 (depends on 1) The device of claim 1, wherein the first display screen has an aspect ratio ranging from 1.75:1 to 2.25:1. ### Claim 4 (depends on 1) The device of claim 1, wherein the first display screen has a screen size in a range of 5.5″ to 6.5″. ### Claim 5 (depends on 1) The device of claim 1, wherein the first display screen has a display resolution of at least 720×1280 pixels. ### Claim 6 (depends on 1) The device of claim 1, wherein the second display screen has a screen size in a range of 3.5″ to 5.5″. ### Claim 7 (depends on 1) The device of claim 1, wherein the first display screen and the second display screen are both color screens. ### Claim 8 (depends on 1) The device of claim 1, wherein the first display screen and the second display screen are both LCD screens. ### Claim 9 (depends on 1) The device of claim 1, wherein the first display screen and the second display screen are both OLED screens. ### Claim 10 (depends on 1) The device of claim 1, wherein the first display screen and the second display screen are screens based on different screen designs. ### Claim 11 (depends on 1) The device of claim 1, wherein the first display screen and the second display screen are screens with different screen resolutions or different screen brightness levels. ### Claim 12 (depends on 1) The device of claim 1, wherein the second display screen is at least 50% of the surface area of the second side. ### Claim 13 (depends on 1) The device of claim 1, further comprising: one or more light sensors disposed in the one or more surface areas outside the second display screen on the second face to detect one or both of ambient and infrared light; and a light illuminator disposed in the one or more surface areas outside the second display screen on the second face proximate to the camera to project light outward from the second face. ### Claim 14 (depends on 1) The device of claim 1, further comprising: one or more speakers disposed on at least one side facet of the device positioned between the first face and the second face. ### Claim 15 (depends on 1) The device of claim 1, further comprising: one or more microphones disposed on at least one side facet of the device positioned between the first face and the second face. ### Claim 16 (depends on 1) The device of claim 1, further comprising: a fingerprint sensor located in the one or more surface areas outside the second display screen on the second face to sense fingerprints. ### Claim 17 (depends on 1) The device of claim 1, further comprising: a face imaging module disposed in the one or more surface areas outside the second display screen on the second face to detect a user's face to identify a user. ### Claim 18 (depends on 1) The device of claim 1, further comprising: a data processing unit including a processor and a memory, the data processing unit in communication with the first and second display screens and the camera. ### Claim 19 (depends on 1) The device of claim 1, wherein the second face includes the second display screen and the sensor devices that are operable to implement initial or basic functions of the device including unlocking the device using a fingerprint or a face identification recognition technique, conducting a phone call, and acquiring a selfie picture using the camera, and wherein the first display screen is operable to implement a visual display experience of a video, picture or text on a full screen that completely occupies the surface area of the first side. ### Claim 20 (depends on 1) The device of claim 1, wherein the device is a smartphone. ### Claim 21 (depends on 1) The device of claim 1, wherein the device is a tablet. ### Claim 22 (depends on 1) The device of claim 1, wherein the device is a portable computing device. ### Claim 23 A method for enhancing a user experience in a portable device, comprising: providing a first display screen fixed in position on a first face of the device to occupy substantially 100% of the surface area of the first face without leaving a space for placing a camera or a sensor outside the first display screen on the first face to provide a high resolution, fully viewable visual display for displaying images and to provide touch sensing operations; providing a second display screen fixed in position on a second face of the device to occupy less than 100% of the surface area of the second face to provide one or more surface areas on the second face for holding sensor devices including a camera for capturing photos and videos, wherein the second display screen is structured to provide a fully viewable visual display for displaying images and touch sensing operations; activating the first display screen on the first face as a viewfinder for the camera on the second face to display a live view from the camera and as a touch sensing panel for a user to control the camera including composing a scene while adjusting the device to aim the camera on the second face towards a target object or area in capturing a photo or video in a point-and-shoot camera operation; activating the second display screen on the second face as a viewfinder for the camera on the second face to display a live view from the camera and as a touch sensing panel for a user to control the camera including composing a scene while adjusting the device to aim the camera on the second face towards a target object or area in capturing a photo or video in a selfie camera operation; and operating the first display and the second display screens simultaneously to manage user operations, including controlling a viewing setting for the first display screen based on touch control of the second display screen without obstructing viewability of content on the high resolution, fully viewable visual display of the first display screen. ### Claim 24 (depends on 23) The method of claim 23, comprising: turning off the first display screen to save power during the selfie camera operation.