Abstract: An optical film for a display device, includes: a first refractive layer having an upper surface and a lower surface including first projections and second projections extending away from the lower surface in a first direction, the second projections having different heights than the first projections, the first projections having lateral sides with different angles of inclination that decrease in the first direction; and a second refractive layer disposed directly on the upper surface of the first refractive layer, the second refractive layer having a refractive index different from that of the first refractive layer.

Abstract: Disclosed is a digital display system based on a common interface. More particularly, a cluster pixel circuit includes a row terminal connected to a row line for receiving PWM (Pulse Width Modulation) clock signal; a column terminal connected to a column line for receiving N-bit data; a first individual pixel driver for driving a first pixel in the cluster pixel; and a second individual pixel driver connected to the first individual pixel driver and for driving a second pixel in the cluster pixel.

Abstract: A pixel driving circuit includes a memory unit including a data memory and a register and storing data related to driving of a luminous element, a driver supplying electrical power to the luminous element based on data stored in the memory unit, and a reset unit controlling reset of the memory unit, wherein the reset unit generates a first reset signal for controlling reset of the data memory and a second reset signal for controlling reset of the register.

Abstract: A display driving apparatus transmitting data to each of a plurality of display driver integrated circuits (ICs) through a mobile industry processor interface (MIPI) using a point-to-multipoint (multi-drop) manner and a data transmission method thereof, the method may obtain display data and command data, transmit the display data and the command data to each of a plurality of display driver ICs through a MIPI using a point-to-multipoint (multi-drop) manner, and independently control sub-pixels corresponding to each of the plurality of display driver ICs based on the display data and the command data.

Abstract: Provided is a pixel driving circuit capable of reducing power consumed for pixel driving by reducing the number of times a capacitor is charged. The pixel driving circuit includes: a video memory configured to store video data related to driving of a plurality of light-emitting devices; a plurality of sub-pixel driving units, respectively corresponding to the plurality of light-emitting devices, configured to supply power to the plurality of light-emitting devices according to the video data stored in the video memory, each of the plurality of sub-pixel driving units having a capacitor unit for charging power required for driving each of the plurality of light-emitting devices; a charge control memory configured to store data related to charging of the capacitor unit; and a charge controller configured to control whether the capacitor unit is charged according to charge control data stored in the charge control memory.

Abstract: A display apparatus is capable of improving a dynamic false contour. The display apparatus may control to change an order of a plurality of pulses of which widths are modulated for an emission time set within one frame, or divide pulses corresponding to the most significant bit (MSB) and the second significant bit (MSB-1) of image data among the pulses into two or more sub-pulses, and output the sub-pulses.

Abstract: A display apparatus is capable of improving a dynamic false contour. The display apparatus may control to change an order of a plurality of pulses of which widths are modulated for an emission time set within one frame, or divide pulses corresponding to the most significant bit (MSB) and the second significant bit (MSB-1) of image data among the pulses into two or more sub-pulses, and output the sub-pulses.

Abstract: Provided is a pixel driving circuit capable of reducing power consumed for pixel driving by reducing the number of times a capacitor is charged. The pixel driving circuit includes: a video memory configured to store video data related to driving of a plurality of light-emitting devices; a plurality of sub-pixel driving units, respectively corresponding to the plurality of light-emitting devices, configured to supply power to the plurality of light-emitting devices according to the video data stored in the video memory, each of the plurality of sub-pixel driving units having a capacitor unit for charging power required for driving each of the plurality of light-emitting devices; a charge control memory configured to store data related to charging of the capacitor unit; and a charge controller configured to control whether the capacitor unit is charged according to charge control data stored in the charge control memory.

Abstract: A display apparatus is capable of improving a dynamic false contour. The display apparatus may control to change an order of a plurality of pulses of which widths are modulated for an emission time set within one frame, or divide pulses corresponding to the most significant bit (MSB) and the second significant bit (MSB-1) of image data among the pulses into two or more sub-pulses, and output the sub-pulses.

Abstract: A method and device for determining a distance are provided. The method includes determining a first binocular distance between two eyes of a user by using a first image captured through a camera of the device, determining a second binocular distance between the two eyes of the user by using a second image captured through the camera, determining a distance from the camera to the two eyes of the user based on the first binocular distance and the second binocular distance, and providing an image to a display of the device, the image converted according to the distance from the camera to the two eyes of the user.

Abstract: A method and device for determining a distance are provided. The method includes determining a first binocular distance between two eyes of a user by using a first image captured through a camera of the device, determining a second binocular distance between the two eyes of the user by using a second image captured through the camera, determining a distance from the camera to the two eyes of the user based on the first binocular distance and the second binocular distance, and providing an image to a display of the device, the image converted according to the distance from the camera to the two eyes of the user.

Abstract: Provided is a method and apparatus for managing energy consumption in a home network system including multiple home devices. The method includes collecting measurement results of power consumptions of the respective multiple home devices, generating power consumption information of the multiple home devices by analyzing the collected measurement results, and transmitting the generated power consumption information to a user device if receiving a request for transmitting the power consumption information from the user device, in which the power consumption information comprises in-home room-specific power consumption information.

Abstract: A method and apparatus for controlling digital video recording where parameters related to encoding video frames that are being currently encoded are stored when a pause command is received during recording and the method and apparatus continually record, based on the stored parameters, when the pause command stops, and a camcorder including the pause function. The method includes: receiving a pause command; storing parameters related to encoding video frames that are presently being encoded in a memory, and then stop encoding video frames that are input after the parameters are stored in the memory; and encoding video frames that are input after receiving a pause release command using parameter information related to encoding when the pause release command is received. Thus, video recording efficiency can be improved by having the pause function.

Abstract: A method and wireless communication system for providing QoS in a wireless network communicating through a point-to-point network are provided. The method includes: (a) at least one of intermediate nodes and a receiving node, selecting at least one QoS management node among different nodes within a predetermined range which are not included on a forwarding route, the forwarding route reaching from a transmitting node to the receiving node via at least one intermediate node satisfying QoS requirements; (b) the selected QoS management node, managing QoS management information of the different nodes which are not included on the forwarding route; and (c) the QoS management node, changing the forwarding route on the basis of the QoS management information so that the changed forwarding route passes through a different node satisfying the QoS requirements, if it is expected that at least one intermediate existing on the forwarding route will not satisfy the QoS requirements.

Abstract: Provided are an apparatus and method for selecting one of an image signal input from an image signal inputting device and an image signal obtained by changing the size of the image signal input from the image signal inputting device and displaying the selected image signal on a display device. The apparatus includes an image size converter for changing the size of a first image signal and outputting the result as a second image signal; and a selector for receiving the first and second image signals and selectively outputting one of the first and second image signals in response to a first control signal. With the apparatus and method, it is possible to selectively reproduce a high-definition image and a low-definition image.

Abstract: An external memory device, a method of storing image data for the same, and an image processor using the method to improve an image encoding and/or decoding speed are provided. The method includes forming image data included in a predetermined-size sub-block divided from a macroblock as at least one data storage unit and storing the data storage unit in the external memory.

Abstract: An intra prediction method and apparatus. The intra prediction method of intra predicting a macroblock divided into a plurality of blocks includes intra predicting the plurality of blocks in a predetermined scanning order. One or more block among the plurality of blocks are intra predicted independently of their respective, immediate preceding block that is intra predicted immediately before the one or more blocks are intra predicted and are intra predicted in parallel with their respective, immediate preceding blocks.

Abstract: An method and apparatus for processing a video-ID signal which detects, records, and reproduces a video-ID signal. The method for processing the video-ID signal includes the steps of detecting the starting position of a video-ID signal from an input video signal, compressing video data started from the video-ID signal as a predetermined compression unit, and recording the starting position of the detected video-ID signal in a predetermined recording area. The method also includes detecting the starting position of the video-ID signal recorded in the predetermined recording area, and decoding a video signal which inserts the video-ID signal into the starting position. Therefore, a video-ID signal is recorded in a time-lapse video recording and reproducing system, and the video-ID signal is identified with a video signal to be compressed and restored, so that compatibility between different systems having different switching portions is maintained.