公开(公告)号：US20200278768A1

公开(公告)日：2020-09-03

申请号：US16650145

申请日：2018-08-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-ho KIM ,  Gwan-hyung KIM ,  Ji-hye HA

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/042 ,  G06T7/90

Abstract: The disclosure relates to a digital whiteboard, the digital whiteboard including: a display; a first sensor configured to detect a touch position of a writing instrument with regard to a screen of the display; a second sensor configured to obtain an image based on image capturing; and a processor configured to identify a target region, in which a motion is present, in the image by comparing a series of images captured by the second sensor, identify a color of the writing instrument in the identified target region, and display an image comprising the identified color, at a position corresponding to a touch of the writing instrument on the screen of the display.Thus, the color of the writing instrument touching the screen of the display is automatically identified, and the traces of the writing instrument are displayed with the identified color on the screen, thereby giving a user an experience as if the user directly writes with the corresponding writing instrument on the digital whiteboard.

公开(公告)号：US20180173407A1

公开(公告)日：2018-06-21

申请号：US15790156

申请日：2017-10-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-ho KIM ,  Gwan-hyung KIM ,  Hui-jun SHIM ,  Ji-hye HA

IPC: G06F3/0484 ,  G06F3/0482 ,  G06F3/0488

Abstract: A display apparatus capable of being touched plural times by a single user or being used by a plurality of users is provided. The display apparatus includes: a display; a sensor sensing a user touch on the display; and a processor configured to execute a writing function corresponding to a first touch when the first touch is sensed through the sensor and executing a function corresponding to a second touch of a user at a coordinate value at which the second touch is sensed in response to the second touch when the second touch is sensed in a predetermined range of the first touch based on a coordinate value at which the first touch is sensed during a period in which the first touch is input.

公开(公告)号：US20180081492A1

公开(公告)日：2018-03-22

申请号：US15706940

申请日：2017-09-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Gwan-Hyung KIM ,  Sang-ho KIM ,  Hui-jun SHIM ,  Ji-hye HA

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354 ,  G06F3/045

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: A display apparatus is provided. The display apparatus includes a display and a controller. The display is configured to display an image and comprises a touch sensor for touch input during an assigned sensing section. The controller is configured to perform an operation corresponding to the touch input sensed during the sensing section, and to control the touch sensor to adjust the sensing section based on conditions for adjusting the sensing section. With this, the display apparatus and a control method thereof which can efficiently sense, without lowering the speed of sensing, a touch input based on a plurality of pens or fingers is provided.