Patents by Inventor Eun-Hee Han
Eun-Hee Han 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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Patent number: 7609351Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.Type: GrantFiled: December 11, 2007Date of Patent: October 27, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
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Patent number: 7605884Abstract: A TFT array panel on which both pixel electrodes and common electrodes are formed and a color filter panel is disposed opposing the array panel, and liquid crystals are interposed therebetween. The liquid crystals are aligned parallel to the two panels and driven by parallel electric field formed between the pixel electrodes and reference electrodes. Polarization films are arranged outsides the two panels, and a quasi-A plate compensation film is arranged between the color filter panel and the polarization film.Type: GrantFiled: October 29, 2007Date of Patent: October 20, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Hak-Sun Chang, Eun-Hee Han, Chang-Hun Lee, Seon-Hong Ahn
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Patent number: 7567323Abstract: Liquid crystal material is interposed between an upper panel and a lower panel. The lower panel includes signal transmitting wires including a gate wire and a data wire, thin film transistors connected to the signal transmitting wires and pixel electrodes connected to the thin film transistors, and the upper panel includes color filters, a black matrix and a common electrode. The pixel electrodes and the common electrode have apertures partitioning the pixel electrode into several domains. In addition, the director of liquid crystal molecules contained in the liquid crystal material is aligned perpendicular to the upper panel and the lower panel in absence of electric field between the pixel electrodes and the common electrode. The dielectric anisotropy of the liquid crystal material has a value ranging ?4.0 to ?5.5.Type: GrantFiled: June 1, 2005Date of Patent: July 28, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Kun Song, Kyeong-Hyeon Kim, Jae-Jin Lyu, Eun-Hee Han, Seung-Beom Park
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Patent number: 7492426Abstract: Liquid crystal material is interposed between an upper panel and a lower panel. The lower panel includes signal transmitting wires including a gate wire and a data wire, thin film transistors connected to the signal transmitting wires and pixel electrodes connected to the thin film transistors, and the upper panel includes color filters, a black matrix and a common electrode. The pixel electrodes and the common electrode have apertures partitioning the pixel electrode into several domains. In addition, the director of liquid crystal molecules contained in the liquid crystal material is aligned perpendicular to the upper panel and the lower panel in absence of electric field between the pixel electrodes and the common electrode. The dielectric anisotropy of the liquid crystal material has a value ranging ?4.0 to ?5.5.Type: GrantFiled: June 1, 2005Date of Patent: February 17, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Kun Song, Kyeong-Hyeon Kim, Jae-Jin Lyu, Eun-Hee Han, Seung-Beom Park
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Publication number: 20090021669Abstract: A display apparatus displays an image in a normal driving mode at a low temperature where a response speed of a liquid crystal becomes lower than a critical value, and displays the image in an impulsive driving mode at a higher temperature where the response speed of the liquid crystal becomes higher than the critical value.Type: ApplicationFiled: February 1, 2008Publication date: January 22, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Jun-Woo Lee, Seung-Hoon Lee, Hee-Seop Kim, Eun-Hee Han
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Publication number: 20080224975Abstract: A method for driving a display device includes: dividing an entire gray-scale region corresponding to a data gray scale into a first gray-scale region and a second gray-scale region and setting a first gamma value of the first gray-scale region and a second gamma value of the second gray-scale region, the first gamma value being smaller than the second gamma value; providing a first gray-scale display voltage corresponding to the data gray scale to a display panel during a first section of one horizontal period by using the first gamma value or the second gamma value selected by an inputted data gray scale; and providing a second gray-scale display voltage corresponding to a black gray scale to the display panel during a second section of the one horizontal period.Type: ApplicationFiled: March 12, 2008Publication date: September 18, 2008Inventors: Seung-Hoon Lee, Jun-Woo Lee, Hee-Seop Kim, Eun-Hee Han, Hong-Jo Park, Sung-Jae Yun
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Publication number: 20080218463Abstract: A display device and a method for driving the same are disclosed. The display device driving method includes applying a first gray scale display voltage according to a first gamma curve to a liquid crystal layer during a first sub-frame period and applying a second gray scale display voltage according to a second gamma curve to the liquid crystal layer during a second sub-frame period. The first and second gamma curves are discontinuous at one or more gray scale values among all gray scale regions.Type: ApplicationFiled: February 15, 2008Publication date: September 11, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun-Woo LEE, Hee-Seop KIM, Hong-Jo PARK, Eun-Hee HAN, Seung-Hoon LEE, Sung-Jae YUN
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Publication number: 20080165298Abstract: A liquid crystal display are provided, which includes: a liquid crystal panel assembly including a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns, a plurality of gate lines, and a plurality of data lines, wherein the number of the data lines is larger than the number of the columns, the data lines are separated from each other in the panel assembly, each pixel is connected to one of the gate lines and adjacent to two of the data lines, and the pixels in each column are alternately connected to the adjacent data lines at least every one row.Type: ApplicationFiled: March 6, 2008Publication date: July 10, 2008Inventors: Jang-Kun Song, Yun Jang, Eun-Hee Han
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Publication number: 20080129673Abstract: Disclosed are a display device and a method of driving the same that improve both moving image visibility and lateral visibility. A display panel including gate and data lines arranged in the form of a matrix for displaying an image, a gate driver for driving the gate line, and a data driver for supplying a low gray scale image signal, a high gray scale image signal, and a black impulsive signal to the data line within one frame period.Type: ApplicationFiled: December 4, 2007Publication date: June 5, 2008Inventors: Hee-Seop KIM, Jun-Woo Lee, Hong-Jo Park, Eun-Hee Han, Seung-Hoon Lee, Sung-Jae Yun
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Publication number: 20080129932Abstract: A TFT array panel on which both pixel electrodes and common electrodes are formed and a color filter panel is disposed opposing the array panel, and liquid crystals are interposed therebetween. The liquid crystals are aligned parallel to the two panels and driven by parallel electric field formed between the pixel electrodes and reference electrodes. Polarization films are arranged outsides the two panels, and a quasi-A plate compensation film is arranged between the color filter panel and the polarization film.Type: ApplicationFiled: October 29, 2007Publication date: June 5, 2008Inventors: Hak-Sun Chang, Eun-Hee Han, Chang-Hun Lee, Seon-Hong Ahn
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Publication number: 20080122874Abstract: In a display apparatus and a method of driving the same, an active period during which one pixel is turned on is divided into a red sub frame, a green sub frame, a blue sub frame, and a white sub frame. A controller compares a gray scale of a fourth image data corresponding to the white sub frame with a reference gray scale and compensates a first image data, a second image data, and a third image data corresponding to the red, green, and blue sub frames, respectively, in accordance with the comparison result.Type: ApplicationFiled: October 30, 2007Publication date: May 29, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-Hee HAN, Hee-Seop KIM, Chang-Hun LEE, Jun-Woo LEE
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Publication number: 20080088786Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.Type: ApplicationFiled: December 11, 2007Publication date: April 17, 2008Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
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Patent number: 7355666Abstract: A liquid crystal display are provided, which includes: a liquid crystal panel assembly including a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns, a plurality of gate lines, and a plurality of data lines, wherein the number of the data lines is larger than the number of the columns, the data lines are separated from each other in the panel assembly, each pixel is connected to one of the gate lines and adjacent to two of the data lines, and the pixels in each column are alternately connected to the adjacent data lines at least every one row.Type: GrantFiled: May 29, 2003Date of Patent: April 8, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Kun Song, Yun Jang, Eun-Hee Han
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Patent number: 7355665Abstract: A thin film transistor array panel may comprise gate lines including gate electrodes and storage electrode lines including storage electrodes that are formed on the insulating substrate, a semiconductor layer formed on the gate insulating layer covering the gate lines, data lines and drain electrodes which are formed on the gate insulating layer, the drain lines including source electrodes formed at least on the semiconductor layer and intersecting the gate lines, and the drain electrodes being separated from the data lines and opposite to the data lines with respect to the gate electrodes and including a storage capacitor conductor overlapping the storage electrodes. Pixel electrodes and common electrodes may be formed on the passivation layer for covering the semiconductor layer. The pixel electrodes and the common electrodes may be neither perpendicular to nor parallel to the data lines and may be made of opaque conductive material.Type: GrantFiled: February 1, 2005Date of Patent: April 8, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Byeong-Seob Ban, Eun-Hee Han, Chang-Hun Lee, Hyun-Wuk Kim, Ji-Won Sohn
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Patent number: 7317503Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.Type: GrantFiled: December 1, 2003Date of Patent: January 8, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
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Patent number: 7289179Abstract: A TFT array panel on which both pixel electrodes and common electrodes are formed and a color filter panel is disposed opposing the array panel, and liquid crystals are interposed therebetween. The liquid crystals are aligned parallel to the two panels and driven by parallel electric field formed between the pixel electrodes and reference electrodes. Polarization films are arranged outsides the two panels, and a quasi-A plate compensation film is arranged between the color filter panel and the polarization film.Type: GrantFiled: November 5, 2003Date of Patent: October 30, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Hak-Sun Chang, Eun-Hee Han, Chang-Hun Lee, Seon-Hong Ahn
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Publication number: 20070200807Abstract: A driving section for a liquid crystal display (LCD) panel not requiring color filters supplies the LCD panel with a plurality of first image signals based on an original image signal during a plurality of first, equal-length field intervals of a frame and also provides a second image signal for enhancing luminance during a second field interval that is longer than the first time interval. The 4-field driving method supplies RGBW data so that the field time interval for a white data is assured thereby improving response speed, charging ratio and transmittance of the liquid crystal molecules.Type: ApplicationFiled: February 23, 2007Publication date: August 30, 2007Inventors: Chang-Hun Lee, Eun-Hee Han, Jun-Woo Lee
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Publication number: 20070187691Abstract: A thin film transistor array panel is provided, which includes: a plurality of gate lines formed on a substrate and including a plurality of oblique portions and a plurality of gate electrodes; a first insulating layer on the gate line; a semiconductor layer formed on the first insulating layer; a plurality of data lines formed at least on the semiconductor layer and intersecting the gate lines to defined trapezoidal pixel areas; a plurality of drain electrodes separated from the data lines; a second insulating layer formed at least on portions of the semiconductor layer that are not covered with the data lines and the drain electrodes; a plurality of pixel electrodes formed on the second insulating layer and connected to the drain electrodes, at least two of the pixel electrodes disposed in each pixel area; and a plurality of common electrodes formed on the second insulating layer, arranged alternate to the pixel electrodes and connected to the drain electrodes, each common electrode having an edge spaced apType: ApplicationFiled: April 11, 2007Publication date: August 16, 2007Inventors: Chang-Hun LEE, Tae-Hwan Kim, Eun-Hee Han, Hak-Sun Chang
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Publication number: 20070182904Abstract: A liquid crystal display panel having improved optical transmissivity and viewing angle includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first base substrate, a plurality of gate lines and a plurality of data lines, and a pixel electrode. The gate lines and the data lines are disposed on the first base substrate and cross each other. The pixel electrode includes a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines. The second substrate includes a second base substrate and a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode.Type: ApplicationFiled: January 24, 2007Publication date: August 9, 2007Inventors: Hee-Seop Kim, Jun-Woo Lee, Jiangang Lu, Eun-Hee Han
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Publication number: 20070171184Abstract: A thin film transistor array panel is disclosed. The thin film transistor array panel includes a gate line formed on a substrate, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, a data line and a drain electrode formed on the semiconductor layer, a passivation layer formed on the data line and the drain electrode and including a contact hole, and a pixel electrode formed on the passivation layer and connected to the drain electrode through the contact hole. The data line intersects the pixel electrode, and the pixel electrode includes an opening corresponding to a portion of the data line. The opening has a horizontal width that is wider or narrower than the horizontal width of the data line. Thereby, parasitic capacitance that occurs between the data line and the pixel electrode is reduced to improve image quality.Type: ApplicationFiled: January 23, 2007Publication date: July 26, 2007Inventors: Eun-Hee Han, Hee-Seop Kim, Jun-Young Lee, Jun-Woo Lee, Sung-Wook Kang