Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Hyundai Motor Company

Kia Motors Corporation

Young-Chan Kim

Min-Soo Kim

Dong-Hoon Lee

Seung-Ho Nam

Seung-Won Park

Seong-Mo Hwang

Byoung-Ho Cheong

Moon-Gyu Lee

Jung-Han Shin

Min-young Song

Sang-hak Lee

Hwan-Young Choi

Hyun-Deok Im

Dong-Sik Park

Hee-Sam Kang

Mun-Gu Kang

Jae-hyung Chang

In-Hye Lee

Hwa-Jun Du

Cheon-Yong Cho

Tai-Gyu Kim

Dong-Ho Wee

A centrifugal casting apparatus is provided. The centrifugal casting apparatus includes an upper mold machined to have an inner contour used to form an upper side surface of a casting, and a lower mold machined to have an inner contour used to form a lower side surface of the casting. An upper motor provides power to rotate the upper mold and a lower motor provides power to rotate the lower mold. The upper motor and the lower motor are operated independently of each other.

Centrifugal casting apparatus and centrifugal casting method

A backlight assembly and a display device having the same are provided. The backlight assembly includes a first substrate, point light sources disposed upon the first substrate and an optical member covering the point light sources to guide light emitted from the point light sources, wherein the first substrate has recessed portions, and the point light sources are positioned within the recessed portions.

Backlight assembly and display device having lower profile and/or reduced weight

A light guiding bar includes first and second light incident portions, a light exit portion and a reflecting portion. The first and second light incident portions are at opposite ends of the light guiding bar and receive light. The light exit portion extends in a first direction, and partially totally reflects and partially emits the light according to an incident angle. The reflecting portion extends in the first direction, is adjacent to the light exit portion and includes a plurality of reflecting surfaces. Each of the reflecting surfaces has a wedge shape and reflects the light in a direction inclined with respect to a second direction substantially perpendicular to the first direction. The light incident into the first and second light incident portions and directly on the light exit portion is totally reflected by the light exit portion.

Light guiding bar, backlight assembly having the same and display apparatus having the same

Provided is a backlight unit of a liquid crystal display (LCD). The backlight unit includes: a plurality of light guide plates (LGPs) arranged in M layers and separated from each other by a predetermined gap, wherein M is a natural number equal to or greater than two, a light source unit disposed on at least one side surface of each of the LGPs and including N light source blocks whose brightnesses are controlled individually, and wherein N is a natural number equal to or greater than two. The backlight unit further includes a plurality of light output regions defined by each of the LGPs being divided into a plurality of regions according to a distance from the light source unit and by a plurality of light output patterns being formed in some of the regions, and wherein the light output regions do not overlap each other in a stacking direction of the LGPs and are arranged to correspond to a whole surface of the LGPs.

Backlight unit of liquid crystal display

A display device and a method of checking signals input to a display device. The display device includes a signal identifying unit, a signal checking unit, and a signal changing unit. The signal identifying unit receives an input signal and identifies the type of input signal that is received. The signal checking unit checks whether the identified input signal is abnormal. The signal changing unit switches from the checked input signal to a next input signal to be checked so that the signal checking unit can check whether the next input signal is abnormal, after the signal checking unit checks whether the input signal is abnormal. Accordingly, when a display device goes to an abnormal mode, one of input signals can be checked in the display device to automatically change to another signal according to the order of checking the signals, the time required to check the signals, and the number of times the signals are checked without manipulating an additional key.

Display device and method of checking input signals

A video display apparatus has an on-screen display pivoting function in which, even when the user arbitrarily pivots the monitor of a computer system, the on-screen display is normally displayed. An on-screen display (OSD) generating section receives horizontal/vertical synchronizing signals and clock signals, and outputs first video signals in response to OSD control signals. A pivot circuit section receives the first video signals, stores a write address of the first video signals in a position-converting manner and in correspondence with a pre-set pivot write address, and converts the write address in response to the horizontal/vertical synchronizing signals and the clock signals so as to output the first video signals in the form of second video signals. A scale converting section furnishes the horizontal/vertical synchronizing signals and the clock signals to the OSD generating section and the pivot circuit section, respectively, and receives the second video signals so as to convert scales of the second video signals. A control section furnishes the OSD control signals and scale control signals to the OSD generating section and the scale converting section, respectively, and furnishes pivot control signals to the pivot control section in response to mode control signals generated by the user.

Video display apparatus with on-screen display pivoting function

A display apparatus including an offset value setting input part to specify an offset value for a DE signal determining an effective area of a video signal; and a DE signal generator to generate the DE signal depending on the offset value. With this configuration, the present invention provides a display apparatus and a control method thereof, which in advance, offsets a noise section contained in a video signal.

Display apparatus and control method thereof offsetting a noise section contained in video signal

A pivoting digital video display device having a pivot apparatus and a PIP function. The pivot apparatus rotates an image from a TV, VTR or DVD for PIP display so that the PIP display can be shown in the same orientation as the main display to provide a user with normal displays, when a personal computer generates a rotated main video signal in response to the rotation of the digital display apparatus from a latitudinal orientation to a longitudinal orientation. Additionally, the pivot apparatus rotates an image corresponding to the main video signal when the personal computer does not generate a rotated main video signal in response to the rotation of the digital display apparatus from a latitudinal orientation to a longitudinal orientation.

Visual output device and method for providing a proper image orientation

An apparatus and a method for determining a type of DVI (Digital Visual Interface) connector connected to a digital video display device, wherein the apparatus utilizes a first resistor connected between a voltage source and a node; a second resistor connected between the node and a ground terminal; a DVI receptacle connected to the DVI connector, the DVI receptacle having a plurality of digital signal sockets connected to receive digital signals output from a host and a plurality of analog signal sockets connected to receive analog signals output from the host, the node being connected to a predetermined one of the analog signal sockets; and a controller connected to the node, the controller determining the DVI connector to be a DVI-D (digital only) type connector when a low voltage is detected at the node, and determining the DVI connector to be a DVI-I (digital and analog) type connector when a high voltage is detected at the node.

Apparatus and method for detecting DVI connectors of a digital video display device

A monitor control device includes a monitor connected to a computer. The device displays a signal transmitted from the computer in characters or pictures of the form which can be recognized by a user. The device includes an input unit connected to the monitor, for outputting an image tune signal or a picture color tune signal and other control signals, and a controller installed in the monitor, for interpreting the control signals generated from the input unit and transmitting a monitor control signal.

Monitor control device and control method thereof

A device to automatically adjust video signals to a blanking level to realize a precise intended color by being fed back with video signals at the blanking level stored in an ASIC (application-specific integrated circuit), which stores video signals at a blanking level received in a flat display panel, and by generating clamp signals so as to realize a blanking level precisely, and a method therefor.

Device to automatically adjust video signals to a blanking level and method therefor

A display apparatus for converting the analog video signals from a host into corresponding digital video data applied to an LCD panel, comprises a microprocessor for generating a video level control signal to control the level of the video data, a preamplifier for amplifying the analog video signals according to a given amplification factor control signal, an A/D converter for converting the amplified analog video signals of the preamplifier into corresponding digital video data based on the read clock signal from an input PLL, and an LCD driver for setting the value of the input video data based on the video level control signal to deliver the digital video data from the A/D converter to the LCD panel, wherein the LCD driver generates an amplification factor control signal applied to the preamplifier to reduce the value of the digital video data from the A/D converter when the value of the digital video data is greater than the set value of the input video data.

Display apparatus with color video control signal function

A method of displaying a display power management signaling (DPMS) using an on screen display (OSD) in a display device includes the steps of: determining whether a sync signal is input or not; storing a DPMS state corresponding to the sync signal which is input; and driving an output port of a microcomputer to display the stored DPMS state through the OSD during a predetermined time.

Apparatus and method for displaying DPMS mode status using an OSD circuit

An apparatus and method for displaying the status of a current display power management signaling (DPMS) mode in a display device uses an on-screen display (OSD) circuit. The current DPMS mode is determined based on an input status of video sync signals and the connection of a signal cable. The current DPMS mode status data is stored in an internal memory of a microcomputer. The OSD circuit is driven using an OSD drive signal output from the microcomputer, so that a message indicative of the stored status data can be momentarily displayed on the display device. In a DPMS mode, any front panel key acts as a program interrupt for DPMS mode operation, which, upon activation, initiates a sequence whereby the DPMS mode is set to normal, horizontal and vertical sync signals are generated, the stored DPMS mode status data is read, and an OSD drive signal is generated. After a time sufficient for user recognition of the current DPMS mode, the OSD drive signal is discontinued and the DPMS mode is reset.

Growing community of inventors

Incheon, South Korea

Young-Chan Kim