Patent application number | Description | Published |
20100085375 | Liquid crystal display device and driving method thereof - A liquid crystal display (LCD) and a method of driving the same are disclosed. The liquid crystal display includes a liquid crystal display panel; a backlight unit; a panel drive circuit; a timing controller; an internal memory; a self-screen drive controller; a scaler unit; a selection unit; an internal power circuit; an external power circuit; and a microprocessor that blocks an output of the external power circuit from being supplied to the scaler unit in a self-screen drive. | 04-08-2010 |
20100149085 | LIQUID CRYSTAL DISPLAY - A liquid crystal display including a liquid crystal display panel having at least first and second display portions, a first light emitting diode (LED) light source unit configured to selectively irradiate light onto the first display portion, a second LED light source unit configured to selectively irradiate light onto the second display portion, a light source drive circuit configured to individually drive the first and second LED light source units in response to an address signal, and a light source controller configured to generate and transmit, during a self screen mode in which a live image is not displayed, the address signal to the light source drive circuit to turn on the first LED light source unit and to turn off the second LED light source unit during a first time period, to turn on the first and second LED light source units during a second time period after the first time period, and to generate and transmit a dimming signal to the light source drive circuit to control a brightness of the first LED light source unit in the second time period to be lower than a brightness of the first LED light source unit in the first time period. | 06-17-2010 |
20100156965 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel; a backlight unit; a panel drive circuit; a timing controller; a data stretching unit that modulates an internal video signal using a data stretching curve determined depending on a brightness of the internal video signal for a self-screen drive; an internal memory; a self-screen drive controller; a scaler unit; a selection unit; an internal power circuit; an external power circuit; and a microprocessor that blocks an output of the external power circuit from being supplied to the scaler unit in the self-screen drive. | 06-24-2010 |
Patent application number | Description | Published |
20110273439 | IMAGE DISPLAY DEVICE AND DRIVING METHOD THEREOF - A method of driving an image display device comprises inserting a reset frame displaying black data between neighboring data frames alternately displaying left-eye data and right-eye data; reflecting gray-scale information of an (n−2)th data frame in a reset frame corresponding to an (n−1)th frame through a predetermined data calculating operation; detecting a data variation between the (n−1)th reset frame and an nth data frame, reading a compensation value corresponding to the detection result from a lookup table, and modulating input data of the nth data frame using the read compensation value; and inverting the polarity of the modulated data according to N frame inversion (N is a multiple of 4) and applying the data having the inverted polarity to a display panel. | 11-10-2011 |
20110273463 | IMAGE DISPLAY DEVICE AND DRIVING METHOD THEREOF - The present application relates to method of driving an image display device comprising inserting a black data frame displaying black data between neighboring data frames alternately displaying left-eye data and right-eye data; comparing an nth frame corresponding to a current frame and an (n−2)th frame corresponding to a previous frame with each other when the data frames are input, reading a compensation value according to the comparison result from a lookup table and modulating input data of the nth frame using the read compensation value to output a modulated data; and bypassing data corresponding to the black data without modulating the data when the black data is input to output a bypass data, the application also relates to said image display device. | 11-10-2011 |
20110273480 | STEREOSCOPIC IMAGE DISPLAY AND METHOD FOR DRIVING THE SAME - A stereoscopic image display and a method for driving the same are disclosed. The stereoscopic image display includes a display panel that displays a two-dimensional (2D) image data in a 2D mode and display a three-dimensional (3D) image data in a 3D mode, a backlight unit providing light to the display panel, a backlight controller that reduces a duty ratio of the backlight unit in a 3D mode lower than a duty ratio set in the 2D mode, and increases a forward current supplied to light sources of the backlight unit in the 3D mode greater than a forward current set in the 2D mode, and a light source driver driving the light sources of the backlight unit. | 11-10-2011 |
20110310090 | DATA MODULATION METHOD AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A data modulation method comprises, comparing left eye image data during a (4N+1)-th frame period with previous frame data, selecting a preliminary modulation value for a left eye image, preliminarily modulating the left eye image data during the (4N+1)-th frame period to reach the preliminary modulation value for the left eye image, and secondarily modulating left eye image data during a (4N+2)-th frame period to reach the preliminary modulation value for the left eye image or a modulation value smaller than the preliminary modulation value. | 12-22-2011 |
20130088481 | STEREOSCOPIC IMAGE DISPLAY - A stereoscopic image display includes a display panel including pixels and a patterned retarder. Each pixel includes a main display unit including a first pixel electrode connected to a data line through a first thin film transistor (TFT) and a first common electrode connected to an upper common line, an auxiliary display unit including a second pixel electrode, which is connected to the data line through a second TFT and is connected to the upper common line through a discharge control TFT, and a second common electrode connected to the upper common line, and a line unit between the main display unit and the auxiliary display unit. The line unit includes a gate line, through which a scan pulse is applied to the first and second TFTs, and a discharge control line, through which a discharge control voltage is applied to the discharge control TFT. | 04-11-2013 |
Patent application number | Description | Published |
20130009941 | IMAGE DISPLAY DEVICE - An image display device includes a display panel which includes a plurality of pixels and operates in a 2D mode and a 3D mode, a patterned retarder for dividing light from the display panel into first polarized light and second polarized light, and a control voltage generator which generates a first DC control voltage of an off-level and a second DC control voltage of a slight-on level, which is higher than the off-level and is lower than a full-on level, and selectively outputs the first DC control voltage and the second DC control voltage depending on a driving mode. Each of the plurality of pixels includes an upper display unit and a lower display unit, which are vertically disposed in a mirror form. | 01-10-2013 |
20130016089 | IMAGE DISPLAY DEVICEAANM Kim; JooahAACI SeoulAACO KRAAGP Kim; Jooah Seoul KRAANM Hwang; KwangjoAACI Anyang-siAACO KRAAGP Hwang; Kwangjo Anyang-si KRAANM Kim; EuitaeAACI Goyang-siAACO KRAAGP Kim; Euitae Goyang-si KRAANM Park; JoonyoungAACI Paju-siAACO KRAAGP Park; Joonyoung Paju-si KRAANM Baek; SeunghoAACI Paju-siAACO KRAAGP Baek; Seungho Paju-si KRAANM Kim; JeongkiAACI Paju-siAACO KRAAGP Kim; Jeongki Paju-si KR - An image display device includes a display panel which selectively displays a 2D image and a 3D image and includes a plurality of pixels, a patterned retarder for dividing light from the display panel into first polarized light and second polarized light, and a control voltage generation circuit which generates a 2D control voltage at an off-level and generates a 3D control voltage alternately having a slight-on level and the off-level every predetermined period of time. The slight-on level is higher than the off-level and is lower than a full-on level. Each pixel includes a main display unit including a first pixel electrode and a first common electrode and a subsidiary display unit including a second pixel electrode, a second common electrode, and a discharge control switch. | 01-17-2013 |
20130088418 | STEREOSCOPIC IMAGE DISPLAY - A stereoscopic image display includes a display panel, which selectively displays a 2D image and a 3D image and includes a plurality of pixels, and a patterned retarder for dividing light from the display panel into first polarized light and second polarized light. Each of the pixels includes a main display unit including a first pixel electrode and a first common electrode, a subsidiary display unit including a second pixel electrode and a second common electrode, and a line unit disposed between the main display unit and the subsidiary display unit. The line unit includes a gate line, a discharge control line through which a discharge control voltage is applied to a discharge control TFT, and a lower common line through which a common voltage is applied to an upper common line. | 04-11-2013 |