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Hong-Jo Park, Suwon-Si KR

Hong-Jo Park, Suwon-Si KR

Patent application numberDescriptionPublished
20080218463DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - 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.09-11-2008
20080224975DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - 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.09-18-2008
20090066900LIQUID CRYSTAL DISPLAY - A liquid crystal display (LCD) includes a first substrate, a pixel electrode disposed on the first substrate and including a plurality of domain-forming units, a pixel-electrode-insulating film disposed on the pixel electrode, and a director control electrode disposed on the pixel-electrode-insulating film positioned between the plurality of domain-forming units.03-12-2009
20090153761DISPLAY DEVICE - A display device includes a first substrate, a second substrate which is disposed to face the first substrate, a liquid crystal layer which is disposed between the first substrate and the second substrate, a first electrode and a second electrode which are formed on the first substrate, and a protrusion which is disposed under one of the first electrode and the second electrode, the liquid crystal layer having an isotropic state when there is no applied electric field, and an anisotropic state when an electric field is applied.06-18-2009
20090207116LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a first substrate, a first field generating electrode formed on the first substrate, a second substrate facing the first substrate, a second field generating electrode formed on the second substrate, and a liquid crystal layer formed between the first field generating electrode and the second field generating electrode, wherein at least one of the first field generating electrode and the second field generating electrode includes zinc aluminum oxide (ZAO), and the driving voltage is in a range of about 3.7 volts to about 5.6 volts for a transmittance of 90% (T08-20-2009
20090213285DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A display device includes a first substrate including a protrusion electrode pattern, a second substrate disposed opposite to the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The protrusion electrode pattern is made of a conductive polymer material, and a state of the liquid crystal layer changes from an isotropic state to an anisotropic state when an electric field is applied.08-27-2009
20090219478DISPLAY DEVICE AND METHOD OF MANUFACTURING THE DISPLAY DEVICE - A display device includes a first substrate having first and second electrodes spaced apart from each other, a protrusion pattern portion disposed underneath at least one of the first and second electrodes, and a spacer portion on the same layer as the protrusion pattern portion and made of the same material as the protrusion pattern portion, a second substrate that faces the first substrate and includes a column spacer facing the spacer portion, and a liquid crystal layer disposed between the first and second substrates. The spacer portion and the column spacer function to maintain a gap between the first and second substrates. The liquid crystal layer is in an isotropic state when no electric field is applied and is in an anisotropic state when an electric field is applied.09-03-2009
20090289887PIXEL DRIVING METHOD, PIXEL DRIVING CIRCUIT FOR PERFORMING THE SAME, AND DISPLAY APPARATUS HAVING THE PIXEL DRIVING CIRCUIT - A pixel driving circuit includes a first gate line, a second gate line, a first data line, a second data line, a pixel part, a first driving part, a second driving part, and a first voltage-changing part. The first driving part applies a first data voltage to the first pixel electrode. The second driving part applies a second data voltage to the second pixel electrode. The first voltage-changing part is connected to the first pixel electrode, the first data line, and the second data line to change a first pixel voltage of the first pixel electrode to increase a voltage difference between the first and second pixel electrodes.11-26-2009
20100007825Display Substrate, Method of Manufacturing the Display Substrate and Liquid Crystal Display Device Having the Display Substrate - A base substrate includes a transmissive area and a reflective area. An insulation layer is formed on the base substrate to have an embossed pattern in correspondence with the transmissive area. A first pixel electrode includes a first transmissive electrode formed on the insulation layer of the embossed pattern, and a first reflective electrode formed on the base substrate in correspondence with the reflective area. A second pixel electrode includes a second transmissive electrode formed on the insulation layer of the embossed pattern corresponding to the transmissive area, and a second reflective electrode corresponding to the reflective area.01-14-2010
20100053490LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME - A liquid crystal display includes a first substrate, a gate line and first and second data lines disposed on the first substrate, a first thin film transistor connected to the gate line and the first data line, a second thin film transistor connected to the gate line and the second data line, a color filter disposed on the first substrate, a protrusion disposed on the color filter, a first pixel electrode including a first linear electrode disposed on the protrusion and connected to the first thin film transistor, a second pixel electrode including a second linear electrode disposed on the protrusion and connected to the second thin film transistor, a second substrate disposed facing the first substrate, and blue phase liquid crystal disposed between the first substrate and the second substrate.03-04-2010
20100141859DISPLAY DEVICE INCLUDING UV-ABSORBING FILTER - The present invention provides a display device including: a first substrate; a second substrate arranged opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and a UV-absorbing filter formed on each of the first substrate and the second substrate, wherein the liquid crystal layer undergoes a phase transition from an isotropic phase in the absence of a voltage to an anisotropic phase when an electric field is applied to the liquid crystal layer.06-10-2010
20100157177APPARATUS AND METHOD OF DISPLAYING AN IMAGE - A display apparatus includes a display panel, a first polarization part, and a second polarization part. The display panel includes an array substrate, an opposite substrate and an electro-optical material layer disposed between the array substrate and the opposite substrate. The electro-optical material layer reflects first circularly polarized light having a wavelength of a predetermined range and transmits second circularly polarized light having a phase difference with the first circularly polarized light. The first polarization part faces a rear face of the array substrate and converts incident light of the rear face into the first circularly polarized light. The second polarization part faces a front face of the opposite substrate and blocks the first circularly polarized light reflected from the electro-optical material layer and transmits the second circularly polarized light transmitted through the electro-optical material layer.06-24-2010
20100225569LIQUID CRYSTAL DISPLAY, MANUFACTURING METHOD THE SAME, AND DRIVING METHOD THEREOF - The blue phase mode may include a photo polymerizing process to sustain the blue phase molecule alignment at room temperature which is called polymer stabilized blue phase (PBP) mode. The blue phase mode LCD or the PBP mode LCD may have a hysteresis characteristic. The hysteresis can be reduced by driving the LCD using an impulsive method.09-09-2010

Patent applications by Hong-Jo Park, Suwon-Si KR