Patents by Inventor Sung-Eun Cha

Sung-Eun Cha 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).

  • Publication number: 20070004071
    Abstract: A liquid crystal display (LCD) and a method for fabricating the same in which the pixel electrodes of a lower substrate includes sub-pixel electrodes each defining a domain and in which the upper substrate includes a common electrode having openings in a region corresponding to the center of the sub-pixel electrodes, either of both of the sub-pixel electrodes and the common electrodes inclining toward each other, and a liquid crystal layer including liquid crystal molecules formed between the lower substrate and the upper substrate.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 4, 2007
    Inventors: Jae-young Lee, Won-sang Park, Hae-young Yun, Sang-woo Kim, Jae-ik Lim, Young-joo Chang, Sung-eun Cha, Ji-youn Choi, Hye-jin Seo, Joo-hee Oh
  • Publication number: 20070002216
    Abstract: A polarizer which includes a polarization film having a transmissive region and a reflective region, the reflective region being comprised of a layer of reflective material supported
    Type: Application
    Filed: June 30, 2006
    Publication date: January 4, 2007
    Inventors: Young-joo Chang, Won-sang Park, Hyung-guel Kim, Kee-han Uh, Hae-young Yun, Sang-woo Kim, Jae-young Lee, Jae-ik Lim, Seung-kyu Lee, Sung-eun Cha
  • Publication number: 20060279678
    Abstract: The invention is directed to a liquid crystal display and assembly without a contact hole in the reflective layer. By eliminating the contact hole, the overall reflectance of the apparatus is increased. In order to prevent light leakage and afterimage, the invention includes an interface electrode that is strategically positioned over where light leakage occurs. An exemplary display apparatus includes a first substrate having a reflective region and a transmissive region including a transparent electrode, a second substrate including a transparent common electrode, a liquid crystal layer located between the first substrate and the second substrate, and a thin film transistor. The tin film transistor includes a gate electrode, a source electrode, and a drain electrode, and the gate electrode is located in the reflective region. Either the source electrode orthe drain electrode contacts the transparent electrode between the reflective region and the transmissive region.
    Type: Application
    Filed: August 18, 2006
    Publication date: December 14, 2006
    Inventors: Jae-Hyun Kim, Yong-Kyu Jang, Won-Sang Park, Sang-Woo Park, Young-Ok Cha, Sung-Eun Cha, Jae-Young Lee
  • Publication number: 20060158588
    Abstract: An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.
    Type: Application
    Filed: December 14, 2005
    Publication date: July 20, 2006
    Inventors: Kee-Han Uh, Hyung-Guel Kim, Sang-Woo Kim, Seung-Kyu Lee, Bo-Young An, Won-Sang Park, Jae-Hyun Kim, Hae-Young Yun, Jae-Young Lee, Poundaleva Irina, Sung-Eun Cha, Young-Joo Chang, Jae-lk Lim, Ki-Hun Jeong
  • Publication number: 20060125987
    Abstract: The present invention provides a transflective liquid crystal display having reflection regions and transmission regions, including a first substrate, a light transmissive layer formed on the first substrate and having recessed portions corresponding to the transmission regions, color filters formed on the light transmissive layer and having a position-dependent thickness due to the recessed portions of the light transmissive layer, transparent electrodes formed on the first substrate, reflective electrodes disposed on the reflection regions and interposed between the light transmissive layer and the color filters, a second substrate, a common electrode formed on the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 15, 2006
    Inventors: Young-Joo Chang, Jae-Ik Lim, Jae-Young Lee, Seung-Kyu Lee, Sung-Eun Cha, Poundaleva Irina, Sang-Woo Kim, Jae-Hyun Kim, Hae-Young Yun, Won-Sang Park, Kee-Han Uh
  • Publication number: 20060125749
    Abstract: Disclosed is a display device with a driving method thereof. The display device includes a plurality of gate lines, a plurality of data lines crossing the gate lines for transmitting gray voltages corresponding to image data among a plurality of the gray voltages as data voltages, and a plurality of pixels connected to the gate and the data lines for receiving the data voltages. The pixels include first color pixels, second color pixels, and third color pixels. The first color pixels express a maximum luminance upon application of a first voltage having the maximum value among the gray voltages, and the second and the third color pixels express a maximum luminance upon application of second and third voltages less than the first voltage among the gray voltages.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 15, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Kyu Lee, Won-Sang Park, Kee-Han Uh, Hae-Young Yun, Jae-Hyun Kim, Sang-Woo Kim, Ki-Hun Jeong, Sung-Eun Cha, Irina Poundaleva, Jae-Young Lee, Jae-Ik Lim, Young-Joo Chang
  • Publication number: 20060125977
    Abstract: A micro lens panel unit for 3D display device includes: a first panel; a resin lens formed on the first panel and having a convex shape; a second panel facing the first panel; and a liquid crystal interposed between the first and second panels.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Inventors: Won-Sang Park, Kee-Han Uh, Hae-Young Yun, Jae-Hyun Kim, Jae-Young Lee, Young-Joo Chang, Poundaleva Irina, Sung-Eun Cha, Seung-Kyu Lee, Jae-Ik Lim, Sang-Woo Kim
  • Publication number: 20060125984
    Abstract: The present invention provides a TFT array panel comprising having a transmission region and a reflection region and: a substrate; a transmission electrode formed on the substrate; a reflection electrode formed on the transmission electrode and disposed on the reflection region; a first retardation layer formed on the reflection electrode; and a second retardation layer formed on the first retardation layer and having a fast axis facing a different direction from a fast axis of the first retardation layer.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 15, 2006
    Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Ik Lim, Seung-Kyu Lee, Sung-Eun Cha, Poundaleva Irina, Young-Joo Chang, Jae-Young Lee, Jae-Hyun Kim, Hae-Young Yun, Kee-Han Uh
  • Publication number: 20060103792
    Abstract: In a transflective-type display panel and a display apparatus having the transflective-type display panel, the transflective-type display panel includes a first display substrate, a second display substrate and a liquid crystal layer. The first display substrate includes a first substrate and a common electrode arranged on the first substrate. The second display substrate includes a second substrate having a main pixel area where a plurality of sub pixel areas are formed, a plurality of transmission electrodes formed in the sub pixel areas and coupled with each other, and a reflection electrode arranged in at least one sub pixel area. Thus, the transflective-type display panel improves a viewing angle and a display quality thereof and improves productivity.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventors: Jae-Young Lee, Kee-Han Uh, Won-Sang Park, Hae-Young Yun, Jae-Hyun Kim, Young-Joo Chang, Irina Poundaleva, Sung-Eun Cha, Seung-Kyu Lee, Jae-Ik Lim, Sang-Woo Kim
  • Patent number: 7012662
    Abstract: A color filter array panel and a TFT array panel face each other, and a liquid crystal layer is interposed between the two panels such that the liquid crystal molecules of the liquid crystal layer are twisted by 72°. A ?/2 compensation film and a ?/4 compensation film are disposed on outer surfaces of the color filter array panel and the TFT array panel, respectively. Upper and lower polarizers are disposed on the respective compensation films. The ?/2 compensation film and the ?/4 compensation film have predetermined retardations and the drawing axes having predetermined azimuthal angles.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 14, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hyun Kim, Sang-Woo Kim, Sung-Eun Cha, Yong-Kyu Jang
  • Publication number: 20060051109
    Abstract: An adhesive is applied to a side of a 3D image forming device of a lenticular lens, parallax barrier, etc., and the 3D image forming device is adhered to an image panel. The image panel and the 3D image forming device are aligned whiling observing a 3D image of the adhered panel through a camera disposed thereabove. In this case, they are determined to be correctly aligned when a black stripe is positioned at the center of the image of the camera. Subsequently, the adhesive is hardened so as to fix the image panel and the 3D image forming device.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 9, 2006
    Inventors: Jae-Ik Lim, Jae-Young Lee, Sang-Woo Kim, Poundaleva Irina, Sung-Eun Cha, Seung-Kyu Lee, Jae-Hyun Kim, Hae-Young Yun, Kee-Han Uh, Won-Sang Park
  • Publication number: 20060038944
    Abstract: A display apparatus includes a voltage applying unit formed on a base substrate. An organic layer having a plurality of micro lens parts is formed to expose an output terminal of the voltage applying unit. Each of the micro lens parts has an irregular shape of a different size to increase a light reflectance. A pixel electrode comprises a first electrode formed on the organic layer and a second electrode formed on an upper face of the first electrode. The second electrode has a light transmitting window partially formed on the second electrode. A second substrate comprises a common electrode corresponding to the pixel electrode. A liquid crystal layer is disposed between the first and second substrates. The display apparatus may improve a display quality by increasing an amount of a light reflected from the pixel electrode.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 23, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Hyun Kim, Kee-Han Uh, Won-Sang Park, Sang-Woo Kim, Jae-Ik Lim, Irina Poundaleva, Sung-Eun Cha, Seung-Kyu Lee, Jae-Young Lee
  • Publication number: 20060033853
    Abstract: In an array substrate, a method of manufacturing the same, a color filter substrate and a display device, the array substrate includes a switching element formed in a pixel region and a pixel electrode member electrically connected to the switching element. The pixel electrode member has a plurality of patterned openings that extend in different directions from each other in the pixel region. The color filter substrate includes a common electrode member having a recess formed in a region partially corresponding to the pixel region so as to define a plurality of domains of liquid crystal. With the multiple domains, a viewing angle of the display device is increased to improve an image display quality.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 16, 2006
    Inventors: Jae-Young Lee, Kee-Han Uh, Won-Sang Park, Sang-Woo Kim, Jae-Ik Lim, Irina Poundaleva, Sung-Eun Cha, Seung-Kyu Lee, Jae-Hyun Kim, Hae-Young Yun
  • Publication number: 20050195353
    Abstract: A LCD apparatus and a method of manufacturing the same. The LCD apparatus includes a lower plate having a pixel region and a switching element disposed in the pixel region, a pixel electrode formed in the pixel region of the lower plate and electrically coupled to an electrode of the switching element, the pixel electrode having a plurality of pixel electrode portions and at least one connecting portion that electrically connects the pixel electrode portions to each other, an upper plate having a display region corresponding to the pixel region, a common electrode formed on the upper plate and having a plurality of opening patterns that corresponds to the pixel electrode portions, respectively, a liquid crystal layer formed between the pixel electrode and the common electrode. Therefore, a viewing angle is increased to improve an image display quality.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 8, 2005
    Inventors: Won-Sang Park, Kee-Han Uh, Jae-Hyun Kim, Sang-Woo Kim, Jae-Ik Lim, Sung-Eun Cha, Jae-Young Lee
  • Publication number: 20050179840
    Abstract: A color filer panel includes a first substrate, a light reflecting member, a color filter, and a light polarizing layer. The light reflecting member is formed on the first substrate. The light reflecting member reflects at least a portion of an external light. The color filter is formed on the light reflecting member. The light polarizing layer is formed over the color filter. Advantageously the time for manufacturing the color filter panel is reduced. Furthermore, a misalignment between the first substrate and the light reflecting member or between the first substrate and the light polarizing layer, which occurs when the light reflecting member or the light polarizing layer is formed in a plate type, is reduced to enhance productivity. Additionally, the light before and after being reflected by the light reflecting member has substantially the same color to enhance display quality.
    Type: Application
    Filed: January 6, 2005
    Publication date: August 18, 2005
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim, Jae-Hyun Kim, Do-Hyung Kim
  • Publication number: 20050174517
    Abstract: The present invention discloses a thin film transistor array substrate, a method for manufacturing the array substrate, and a liquid crystal display. The present invention further discloses a liquid crystal display having a reflective area and a transmissive area, which the image quality can be enhanced with. The present invention also discloses a liquid crystal display that has a liquid crystal layer whose thickness is depends on position.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 11, 2005
    Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim
  • Publication number: 20050146658
    Abstract: A substrate for a display apparatus includes a plate, a switching element, an insulating layer, and a partition wall. The plate has a reflection region on which a light that is provided from an exterior to the substrate is reflected and a transmission region through which a light generated from a backlight assembly passes. The switching element is on the plate. The insulating layer is on the plate having the switching element. The transmission region of the insulating layer is recessed when compared to the reflection region of the insulating layer. The insulating layer has a contact hole through which a first electrode of the switching element is partially exposed. The partition wall divides the transmission region into a plurality of transmission portions. Advantageously, an image display quality of the display apparatus is improved, and manufacturing cost is decreased.
    Type: Application
    Filed: January 6, 2005
    Publication date: July 7, 2005
    Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee, Jae-Ik Lim
  • Publication number: 20050134773
    Abstract: An LCD apparatus including a first member, a second member, a liquid crystal layer and an optical film assembly is presented. A phase delay of the optical film assembly is about ??. In a normally white mode, the phase delay of the liquid crystal layer is about (?/2)+? when no voltage is applied and about “?” when voltage is applied. In a normally black mode, the phase delay of the liquid crystal layer is about “?” when no voltage is applied, and about (?/2)+? when voltage is applied. The phase delay between the liquid crystal layer when voltage is applied and the liquid crystal layer when voltage is not applied is about ?/2. “?” is a positive number. By manipulating the value of ?, power consumption can be reduced. For example, the apparatus can be driven with a voltage below 2.5 V.
    Type: Application
    Filed: December 13, 2004
    Publication date: June 23, 2005
    Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim, Jae-Hyun Kim
  • Publication number: 20050134771
    Abstract: A vertical alignment mode reflective-transmissive liquid crystal display (LCD) includes the first substrate having an upper surface and a lower surface and the second substrate having an upper surface and a lower surface and facing the first substrate. A cell is formed between the upper surface of the first substrate and the lower surface of the second substrate. The cell has a plurality cell-gaps. A vertically aligned liquid crystal layer is disposed in the cell. The reflective region of the LCD has a cell-gap ranging from about 1.8 ?m to about 2.2 ?m, and the transmissive region of the LCD has a cell-gap ranging from about 3.6 ?m to about 4.0 ?m. The first optical film assembly including the first polarizer is disposed on the lower surface of the first substrate. The second optical film assembly including the second polarizer is disposed on the upper surface of the second substrate. An absorption axis of the first polarizer is substantially perpendicular to that of the second polarizer.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 23, 2005
    Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim
  • Publication number: 20050128399
    Abstract: An array substrate includes a plate, a switching element, an insulating layer and a pixel electrode. The plate includes a pixel region, and the switching element is disposed on the plate. The insulating layer is disposed on the plate to include an opening for a multi-domain disposed in the pixel region and a contact hole. An electrode of the switching element is partially exposed through the contact hole. The pixel electrode is disposed on the insulating layer corresponding to the pixel region, an inner surface of the opening for the multi-domain and an inner surface of the contact hole so that the pixel electrode is electrically connected to the electrode of the switching element. Therefore, the viewing angle and the image display quality of the LCD apparatus are improved, and a manufacturing process is simplified.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 16, 2005
    Inventors: Jae-Hyun Kim, Sung-Eun Cha, Sang-Woo Kim, Won-Sang Park, Jae-Young Lee, Jae-Ik Lim