# US 10,768,671 B2 · Early warning method, early warning apparatus, and flexible display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,671 B2 - Document ID: US10768671B2 - Status: Granted - Kind: B2 - Application number: 16/430,620 - Filed: 2019-06-04 - Published: 2019-09-19 - Granted: 2020-09-08 - Earliest claimed: 2016-07-08 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Yugui Lin; Jiao Cheng - Web page: https://patentgrep.com/patent/US10768671B2 ## CPC - G06F 1/1677: {for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 9/542: {Event management; Broadcasting; Multicasting; Notifications} - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - H04M 1/0268: {including a flexible display panel} - H04M 1/725: Cordless telephones (user interfaces specially adapted therefor H04M1/724) - H04M 1/724: User interfaces specially adapted for cordless or mobile telephones - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract The present disclosure discloses an early warning method, an early warning apparatus, and a flexible display apparatus. The early warning method includes: generating first early-warning information on a flexible display when the flexible display stored in a flexible display apparatus satisfies an extension early-warning condition; obtaining a first extended length of the flexible display; determining whether the first extended length reaches a first preset length threshold; and if yes, eliminating the first early-warning information from the flexible display. ## Claims ### Claim 1 An early-warning control method, comprising: displaying a first early-warning image on a flexible display when the flexible display stored in a flexible display apparatus satisfies an extension early-warning condition; obtaining a present extended length of the flexible display; detecting whether the present extended length reaches a first preset length threshold; and controlling the flexible display to exit from the first early-warning image when the present extended length reaches the first preset length threshold; when the present extended length is the first preset length threshold, detecting whether the flexible display is extruded by an external force so as to determine whether the flexible display receives a trigger signal, wherein the trigger signal is configured to trigger the flexible display to curl up; and displaying a second early-warning image when the flexible display receives the trigger signal. ### Claim 2 (depends on 1) The method of claim 1, before displaying the first early-warning image on the flexible display when the flexible display stored in the flexible display apparatus satisfies the extension early-warning condition, further comprising: obtaining an extended length during an extension of the flexible display when the flexible display stored in the flexible display apparatus begins to extend; detecting whether the acquired extended length reaches a second preset length threshold; and determining that the flexible display satisfies the extension early-warning condition when the acquired extended length reaches the second preset length threshold. ### Claim 3 (depends on 1) The method of claim 1, wherein displaying the first early-warning image on the flexible display comprises: activating a circuit signal in the flexible display; controlling the flexible display according to the circuit signal to prestore the first early-warning image; and displaying the first early-warning image. ### Claim 4 (depends on 1) The method of claim 1, after controlling the flexible display to exit from the early-warning image, further comprising: sending a message for indicating end of extension. ### Claim 5 (depends on 1) The method of claim 1, wherein the first preset length threshold is a length of the flexible display when the flexible display is fully extended. ### Claim 6 (depends on 2) The method of claim 2, wherein the second preset length threshold is 90% of a length of the flexible display when the flexible display is fully extended. ### Claim 7 (depends on 1) The method of claim 1, wherein the first early-warning image is selected from a group including graphic information, information composed of graphic and text. ### Claim 8 An early-warning control apparatus, comprising: a displaying module, configured as a controller, and configured to display a first early-warning image on a flexible display when the flexible display stored in a flexible display apparatus satisfies an extension early-warning condition; an obtaining module, configured as a sensor, and configured to obtain a present extended length of the flexible display; a detecting module, configured as the controller, and configured to detect whether the present extended length reaches a first preset length threshold; and a sending module, configured as the controller, and configured to control the flexible display to exit from the first early-warning image when the present extended length reaches the first preset length threshold; wherein: when the present extended length is the first preset length threshold, the detecting module is further configured to detect whether the flexible display is extruded by an external force so as to determine whether the flexible display receives a trigger signal, wherein the trigger signal is configured to trigger the flexible display to curl up; and wherein the displaying module is further configured to display a second early-warning image when the flexible display receives the trigger signal. ### Claim 9 (depends on 8) The apparatus of claim 8, further comprising a determining module, the obtaining module is further configured to obtain an extended length during an extension of the flexible display when the flexible display stored in the flexible display apparatus begins to extend; the detecting module is further configured to detect whether the acquired extended length reaches a second preset length threshold; and the determining module is configured as the controller, and configured to determine that the flexible display satisfies the extension early-warning condition when the acquired extended length reaches the second preset length threshold. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein the displaying module comprises: an activating unit, configured to activate a circuit signal in the flexible display; an image acquiring unit, configured to control the flexible display according to the circuit signal to prestore the first early-warning image; and an image displaying unit, configured to display the first early-warning image. ### Claim 11 (depends on 8) The apparatus of claim 8, further comprising: a message indicating module, configured as the controller, and configured to send a message for indicating end of extension when the first extended length reaches the first preset length threshold. ### Claim 12 (depends on 8) The apparatus of claim 8, wherein the first preset length threshold is a length of the flexible display when the flexible display is fully extended. ### Claim 13 (depends on 9) The apparatus of claim 9, wherein the second preset length threshold is 90% of a length of the flexible display when the flexible display is fully extended. ### Claim 14 A flexible display apparatus, comprising a flexible display, and an early warning control apparatus, wherein, a displaying module, configured as a controller, and configured to display a first early-warning image on a flexible display when the flexible display stored in a flexible display apparatus satisfies an extension early-warning condition; an obtaining module, configured as a sensor, and configured to obtain a present extended length of the flexible display; a detecting module, configured as the controller, and configured to detect whether the present extended length reaches a first preset length threshold; and a sending module, configured as the controller, and configured to control the flexible display to exit from the first early-warning image when the present extended length reaches the first preset length threshold; wherein: when the present extended length is the first preset length threshold, the detecting module is further configured to detect whether the flexible display is extruded by an external force so as to determine whether the flexible display receives a trigger signal, wherein the trigger signal is configured to trigger the flexible display to curl up; and the displaying module is further configured to display a second early-warning image when the flexible display receives the trigger signal. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein early warning control apparatus further comprises: a determining module, the obtaining module is further configured to obtain an extended length during an extension of the flexible display when the flexible display stored in the flexible display apparatus begins to extend; the detecting module is further configured to detect whether the acquired extended length reaches a second preset length threshold; and the determining module is configured as the controller, and configured to determine that the flexible display satisfies the extension early-warning condition when the acquired extended length reaches the second preset length threshold. ### Claim 16 (depends on 14) The apparatus of claim 14, wherein the displaying module comprises: an activating unit, configured to activate a circuit signal in the flexible display; an image acquiring unit, configured to control the flexible display according to the circuit signal to prestore the first early-warning image; and an image displaying unit, configured to display the first early-warning image. ### Claim 17 (depends on 14) The apparatus of claim 14, wherein early warning control apparatus further a message indicating module, configured as the controller, and configured to send a message for indicating end of extension when the first extended length reaches the first preset length threshold.