# US 12,225,182 B2 · Display device and control method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,182 B2 - Document ID: US12225182B2 - Status: Granted - Kind: B2 - Application number: 18/387,706 - Filed: 2023-11-07 - Published: 2024-02-29 - Granted: 2025-02-11 - Earliest claimed: 2021-07-05 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sangkyun Im; Jaehoo Park; Joowhan Lee - Web page: https://patentgrep.com/patent/US12225182B2 ## CPC - G09F 9/33: being semiconductor devices, e.g. diodes - H04N 13/393: the volume being generated by a moving, e.g. vibrating or rotating, surface - G09F 9/37: being movable elements (G09F9/302 takes precedence) - G09F 19/02: incorporating moving display members - G09F 19/12: using special optical effects - G09G 3/005: {forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation} - G09G 3/035: {for flexible display surfaces} - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 2340/0442: Handling or displaying different aspect ratios, or changing the aspect ratio - G09G 2370/16: Use of wireless transmission of display information - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - 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 A display device includes a main body; a first rotatable shaft included in a first portion of the main body; a second rotatable shaft included in a second portion of the main body, the second portion being opposite to the first portion; a motor disposed inside the main body, and connected to at least one of the first rotatable shaft and the second rotatable shaft; a transparent wire including a first end connected to the first rotatable shaft and a second end connected to the second rotatable shaft; a plurality of light emitting diodes (LEDs) included inside the transparent wire in a longitudinal direction of the transparent wire; a driving circuit configured to drive the plurality of LEDs; and a processor configured to control the motor to rotate the transparent wire, and to provide an image frame to the driving circuit to display an image by rotation of the transparent wire. ## Claims ### Claim 1 A display device, comprising: a main body; a first rotatable shaft included in a first portion of the main body; a second rotatable shaft included in a second portion of the main body, the second portion being opposite to the first portion; a motor disposed inside the main body, and connected to at least one of the first rotatable shaft and the second rotatable shaft; a transparent wire including a first end connected to the first rotatable shaft and a second end connected to the second rotatable shaft; a plurality of light emitting diodes (LEDs) included inside the transparent wire in a longitudinal direction of the transparent wire; a driving circuit configured to drive the plurality of LEDs; and a processor configured to control the motor to rotate the transparent wire, and to provide an image frame to the driving circuit to display an image by rotation of the transparent wire. ### Claim 2 (depends on 1) The display device of claim 1, further comprising: a substrate included in the transparent wire in the longitudinal direction of the transparent wire, wherein the plurality of LEDs are mounted on at least one of an upper surface of the substrate and a lower surface of the substrate. ### Claim 3 (depends on 2) The display device of claim 2, further comprising: a plurality of lenses mounted on the substrate to cover each of a plurality of pixels formed by the plurality of LEDs, wherein the plurality of lenses are configured to diffuse light emitted from the plurality of LEDs. ### Claim 4 (depends on 1) The display device of claim 1, further comprising: a shaft actuator disposed in the main body, wherein the shaft actuator is configured to move at least one of the first rotatable shaft and the second rotatable shaft in a direction parallel to a rotation axis. ### Claim 5 (depends on 4) The display device of claim 4, wherein the processor is further configured to: set a display area in which the image is displayed based on a size of the image frame; adjust a movement distance of the at least one of the first rotatable shaft and the second rotatable shaft based on the display area to produce an adjusted movement distance; and control the shaft actuator based on the adjusted movement distance. ### Claim 6 (depends on 5) The display device of claim 5, wherein the processor is configured to adjust a rotational speed of the motor based on the adjusted movement distance of the at least one of the first rotatable shaft and the second rotatable shaft. ### Claim 7 (depends on 5) The display device of claim 5, wherein the processor is configured to set the display area corresponding to a ratio of a width of the image frame and a height of the image frame. ### Claim 8 (depends on 5) The display device of claim 5, wherein the processor is further configured to, based on a size of the image frame being greater than a maximum size of a configurable display area, scale the image frame. ### Claim 9 (depends on 1) The display device of claim 1, wherein the processor is further configured to: obtain the image frame by decoding image data, divide the image frame into a plurality of image frame parts, and sequentially provide the plurality of image frame parts to the driving circuit at each predetermined rotation angle of the transparent wire. ### Claim 10 (depends on 1) The display device of claim 1, wherein the processor is further configured to adjust a rotational speed of the motor based on adjustment of a frame rate. ### Claim 11 (depends on 1) The display device of claim 1, further comprising: a wireless communication module configured to establish a wireless communication channel with the driving circuit, wherein the processor is further configured to transmit the image frame using the wireless communication module through the wireless communication channel. ### Claim 12 A control method of a display device, the control method comprising: providing an image frame to a driving circuit configured to drive a plurality of light emitting diodes (LEDs); rotating at least one of a first rotatable shaft and a second rotatable shaft connected to a transparent wire including the plurality of LEDs to move the transparent wire in a circular motion; and displaying an image by driving the plurality of LEDs simultaneously with the circular motion of the transparent wire. ### Claim 13 (depends on 12) The control method of claim 12, wherein the providing of the image frame comprises: dividing the image frame into a plurality of image frame parts; and sequentially providing the plurality of image frame parts to the driving circuit at a plurality of predetermined rotation angles of the transparent wire. ### Claim 14 (depends on 12) The control method of claim 12, wherein the providing of the image frame comprises setting a display area for displaying the image based on a size of the image frame. ### Claim 15 (depends on 14) The control method of claim 14, wherein the rotating of the at least one of the first rotatable shaft and the second rotatable shaft comprises moving the at least one of the first rotatable shaft and the second rotatable shaft in a direction parallel to a rotation axis based on the display area.