Patents by Inventor Jin-wook Choi
Jin-wook Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140067915Abstract: A terminal device and a data communication method of the terminal device in which a virtual environment is constructed includes receiving a processing command for data searched for according to a data search command, storing first path information on a position of the searched data and transmitting first event information related to the processing command to a management server, receiving a communication performance command including identification information of the other terminal device from the management server, and transmitting the data to the other terminal based on the identification information and the first path information, wherein the communication performance command is generated based on second event information related to an execution command for the data in the other terminal device and the first event information. Data transmission/reception between the virtual terminal devices or between the virtual terminal device and an actual terminal device can be performed smoothly.Type: ApplicationFiled: March 19, 2013Publication date: March 6, 2014Applicant: Samsung Electronics Co., Ltd.Inventor: Jin-wook CHOI
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Patent number: 8512598Abstract: The present invention relates to a liquid crystal compound for liquid crystal display. More particularly, the present invention provides a vinylcyclohexylbenzene, its derivatives and the preparation method thereof where the present invention produces only trans-isomer by using Heck coupling reaction instead of Wittig reaction in the introduction to ethenyl group in the central backbone in the preparation process of intermediate. The liquid crystal compound can make the liquid crystal composition have a wide mesophase range and low viscosity.Type: GrantFiled: December 14, 2009Date of Patent: August 20, 2013Assignee: Dongjin Semichem Co., Ltd.Inventors: Kyung-Hee Choi, Sun-Hee Lee, Jin-Wook Choi
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Patent number: 8318969Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1: wherein n is an integer of 1 to 5 and R is an alkyl or alkoxy group of 3 to 5 carbon atoms, which align liquid crystal in uniform and vertical way, have not only excellent mechanical properties such as heat resistance and surface strength but also high pretilt angles of liquid crystal and in particular, can make response rate of liquid crystal fast, methods for the preparation of the same and liquid crystal alignment films using the same.Type: GrantFiled: February 9, 2007Date of Patent: November 27, 2012Assignee: Dongjin Semichem Co., Ltd.Inventors: Jin wook Choi, Eung jae Park, Jae cheol Park, Yong bae Kim
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Patent number: 8299304Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1 (shown in description), capable of aligning liquid crystal in uniform and vertical way and remarkably improving clarity and solubility against organic solvents, methods for the preparation of the same and liquid crystal alignment films using the same.Type: GrantFiled: February 9, 2007Date of Patent: October 30, 2012Assignee: Dongjin Semichem Co., Ltd.Inventors: Jin wook Choi, Dal bong Seo, Jae cheol Park, Yong bae Kim
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Publication number: 20120249436Abstract: Disclosed is a liquid crystal display (LCD) apparatus with a built-in touch sensor, the LCD apparatus including: a first substrate and a second substrate placed facing each other with a liquid crystal layer interposed therebetween; a plurality of gate lines and a plurality of data lines arranged to intersect each other and defined a pixel region on the first substrate; a plurality of first touch signal lines formed on a surface of the second substrate opposite to the first substrate substantially corresponding to the respective gate lines; a plurality of second touch signal lines formed on the surface of the second substrate substantially corresponding to the respective data lines while being insulated from and intersecting with the first touch signal lines; and a color filter formed on the surface of the second substrate substantially corresponding to the pixel region, wherein the first touch signal lines and the second touch signal lines serve as a signal line for sensing touch as well as a light shieldingType: ApplicationFiled: August 23, 2011Publication date: October 4, 2012Applicant: HYDIS TECHNOLOGIES CO., LTD.Inventors: Jin Wook Choi, Hyoung Jin Yoon
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Publication number: 20120162517Abstract: A display apparatus and a control method thereof are provided. The display apparatus includes a first signal processor which processes a first image; a second signal processor which processes a second image; a display unit which displays the processed first image on a main screen and the processed second image on a picture-in-picture (PIP) screen having a predetermined size and at least partially overlapping with the first image; a receiver which receives a pointer signal corresponding to a user's selection; and a controller which determines which one of the first image and the second image shows a pointer corresponding to the received pointer signal located thereon, and controls the second signal processor so that a result from performing an operation corresponding to a location of the pointer on the second image can be processed and displayed on the PIP screen if the pointer is located on the second image.Type: ApplicationFiled: September 14, 2011Publication date: June 28, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-wook CHOI, Hyun-sig LIM
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Publication number: 20120092563Abstract: A remote controller is provided for a display apparatus and a control method thereof. The remote controller for a display apparatus includes a communication unit which communicates with a display apparatus and a remote terminal, a user input unit which receives a user's command, and a controller which performs a control operation to transmit a user's first command for manipulating the display apparatus to the display apparatus, to be remotely connected to the remote terminal and transmit to the display apparatus a terminal image received from the remote terminal and transmit to the remote terminal a user's second command for a manipulation of the remote terminal. With this configuration, users may control a remote terminal.Type: ApplicationFiled: June 8, 2011Publication date: April 19, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bo-kyun KWON, Jin-wook CHOI
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Publication number: 20110237849Abstract: The present invention relates to a liquid crystal compound for liquid crystal display. More particularly, the present invention provides a vinylcyclohexylbenzene, its derivatives and the preparation method thereof where the present invention produces only trans-isomer by using Heck coupling reaction instead of Wittig reaction in the introduction to ethenyl group in the central backbone in the preparation process of intermediate. The liquid crystal compound can make the liquid crystal composition have a wide mesophase range and low viscosity.Type: ApplicationFiled: December 14, 2009Publication date: September 29, 2011Applicant: Dongjin Semichem Co., Ltd.,Inventors: Kyung-Hee Choi, Sun-Hee Lee, Jin-Wook Choi
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Publication number: 20110105698Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1 (shown in description), capable of aligning liquid crystal in uniform and vertical way and remarkably improving clarity and solubility against organic solvents, methods for the preparation of the same and liquid crystal alignment films using the same.Type: ApplicationFiled: February 9, 2007Publication date: May 5, 2011Applicant: DONGJIN SEMICHEM Co., Ltd.Inventors: Jin wook Choi, Dal bong Seo, Jae cheol Park, Yong bae Kim
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Publication number: 20110012849Abstract: Provided are a method and apparatus for controlling an electronic device having a removable stylus for operating a touch screen of the electronic device, and at least one button for operating the electronic device, the method including: determining whether the stylus is removed from the electronic device, and deactivating the at least one button if the stylus is removed from the electronic device.Type: ApplicationFiled: April 21, 2010Publication date: January 20, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheon-yong CHO, Seung-kee CHO, In-ki LEE, Jin-wook CHOI
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Publication number: 20100313154Abstract: A method for displaying a screen, a method for generating a screen, a method for operating an application, and an electronic device using the same are provided. The method for displaying a screen of the present invention stores information regarding display state of the screen and displays the screen according to the stored information. Accordingly, a user can be provided with a desired working environment more conveniently and rapidly.Type: ApplicationFiled: June 8, 2010Publication date: December 9, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-wook CHOI, Seung-kee CHO, Cheon-yong CHO
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Publication number: 20100013846Abstract: Display apparatus, image quality converting method and data creating method using the same are disclosed. The display apparatus includes a storage unit which stores conversion information of parameter values, a measuring unit which measures parameter values, and a control unit which controls an image quality of the received image to be converted. Even if a connector for implementing a user's desired image is not connected, the present invention can thereby reproduce the image quality of the received image as if the received image is connected using such a connector.Type: ApplicationFiled: January 28, 2009Publication date: January 21, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Jin-wook CHOI, Joung-hum Baek, Cheon-yong Cho
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Publication number: 20090059073Abstract: A display control method, and a display apparatus and display system using the method are provided. The display control method includes detecting a command to change to multi-screen display mode, and displaying a video corresponding to a video signal having a resolution changed according to the size of a split screen of a display on the split screen, if the command is detected. Therefore, it is possible to change a resolution of a video to a resolution most suitable for display on the split screen.Type: ApplicationFiled: July 1, 2008Publication date: March 5, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Cheon-yong Cho, Joung-hum Baek, Jin-wook Choi, Sung-gon Jun
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Publication number: 20090041955Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1: wherein n is an integer of 1 to 5 and R is an alkyl or alkoxy group of 3 to 5 carbon atoms, which align liquid crystal in uniform and vertical way, have not only excellent mechanical properties such as heat resistance and surface strength but also high pretilt angles of liquid crystal and in particular, can make response rate of liquid crystal fast, methods for the preparation of the same and liquid crystal alignment films using the same.Type: ApplicationFiled: February 9, 2007Publication date: February 12, 2009Applicant: Dongjin Semichem Co., Ltd.Inventors: Jin wook Choi, Eung jae Park, Jae cheol Park, Yong bae Kim
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Patent number: 7474917Abstract: An impedance measurement system for measuring skin impedance in a small skin region includes an electrode unit having a plurality of current supply electrodes for supplying a constant current and a plurality of measurement electrodes separate from the current supply electrodes for measuring a response signal of skin, a current source for supplying the constant current to the current supply electrodes, a signal processing unit, connected to the measurement electrodes, for receiving response signals generated in the skin in response to the applied constant current, for generating a potential difference signal, for removing noise from the potential difference signal, and for amplifying the noise-removed potential difference signal, a signal conversion unit for converting the potential difference signal received from the signal processing unit from analog into digital format, and an image display unit for converting the digital potential difference signal into an image signal and for displaying the image signal.Type: GrantFiled: July 23, 2003Date of Patent: January 6, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-young Jang, Young-bae Park, Sang-hoon Shin, Jin-wook Choi
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Publication number: 20080163114Abstract: An image processing apparatus, includes: a menu generating part which generates and outputs a plurality of menu items which include at least one activated menu item; a user inputting part which receives instruction of a user to select one of the plurality of menu items; and a control part which controls the menu generating part so that, if an inactivated menu item is selected from the user inputting part, at least one of the activated menu item and the selected menu item is animated for a predetermined time and the selected menu item is activated after the predetermined time elapses.Type: ApplicationFiled: September 25, 2007Publication date: July 3, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Jin-wook CHOI, Joung-hum BAEK, Cheon-yong CHO
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Publication number: 20080122825Abstract: A display system including an imaging processing apparatus which generates an image based on one power mode of a plurality of power modes and a first display apparatus which receives the image from the image processing apparatus and displays the image. The power mode may include a display power management signaling power mode defined by the Video Electronics Standards Association. Further, the imaging processing apparatus and the first display apparatus may communicate by using a universal serial bus (USB).Type: ApplicationFiled: October 4, 2007Publication date: May 29, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Jin-wook Choi, Joung-hum Baek, Cheon-yong Cho
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Publication number: 20080084570Abstract: A display system having a display part includes a user interface (UI) generator, and a controller which controls the UI generator to generate a profile adjusting window including a first menu for adjusting a display profile and a second menu for adjusting a printer profile if a control signal is input to adjust the display profile or the printer profile.Type: ApplicationFiled: June 19, 2007Publication date: April 10, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Cheon-yong Cho, Joung-hum Baek, Jin-wook Choi
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Publication number: 20080074403Abstract: A display system includes a host apparatus that generates a main image signal and a sub image signal; a compressor that compresses the sub image signal generated by the host apparatus; a primary display that displays an image based on the main image signal generated by the host apparatus; and a secondary display that receives the sub image signal compressed by the compressor according to a general-purpose data communication standard, expands the received sub image signal, and displays an image based on the expanded sub image signal. With this configuration, expenses incurred for display of an image on an additional display apparatus can be minimized.Type: ApplicationFiled: May 3, 2007Publication date: March 27, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheon-yong CHO, Hemanshu SRIVASTAVA, Joung-hum BAEK, Jong-hwa BAE, Jin-wook CHOI
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Publication number: 20040122336Abstract: An impedance measurement system for measuring skin impedance in a small skin region includes an electrode unit having a plurality of current supply electrodes for supplying a constant current and a plurality of measurement electrodes separate from the current supply electrodes for measuring a response signal of skin, a current source for supplying the constant current to the current supply electrodes, a signal processing unit, connected to the measurement electrodes, for receiving response signals generated in the skin in response to the applied constant current, for generating a potential difference signal, for removing noise from the potential difference signal, and for amplifying the noise-removed potential difference signal, a signal conversion unit for converting the potential difference signal received from the signal processing unit from analog into digital format, and an image display unit for converting the digital potential difference signal into an image signal and for displaying the image signal.Type: ApplicationFiled: July 23, 2003Publication date: June 24, 2004Inventors: Woo-Young Jang, Young-Bae Park, Sang-Hoon Shin, Jin-Wook Choi