Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Innovation Counsel LLP

Kyung-Uk Choi

Yun-Jae Park

Seung-Hwan Moon

Jae-won Jeong

Sang-Gil Lee

Gyeong-Ub Moon

Ga-Na Kim

Jeong Bong Lee

Jinho Park

Kwan-Young Oh

Yun-Jae Kim

Seung Hwan Moon

Ji-Woong Jeong

Jahun Koo

Nam-Hee Goo

Bo-Ram Kim

Hyun-Seok Ko

Su-Han Woo

Myoung-Chul Kim

Byoung Jun Lee

Jong Deuk Moon

Sangyoung Lee

Sanghyun Lee

Sang Hyun Lee

Jae Ho Choi

Sangho Park

Jin Ho Park

Po-Yun Park

Kyung-hun Lee

Yong-Soon Lee

Jae Won Jeong

Sang-Ho Park

Young-Su Kim

Mun-Soo Park

Seokyun Son

Byeong-Doo Kang

Myeongsu Kim

Seon Hye Kim

Hyun Seok Hong

Ki-Chan Lee

Ja Hun Koo

Young-Suk Ha

Chang Sin Kim

Jong-Yoon Lee

Seonhye Kim

Byeong Doo Kang

Kyung-Hun Lee

Seohyeong Yang

Mikyung Kang

Jinhyun Ko

Hyelim Kim

Jeong-Bong Lee

Hyun-suk Ko

Younjin Jung

A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.

Liquid crystal display device and method of driving the same

A method of driving a display panel includes compensating first pixel data corresponding to a first pixel of a plurality of pixels in the display panel based on at least one of a first decision, a second decision, or a third decision and generating a first data voltage corresponding to the compensated first pixel data. The first data voltage is applied to the first pixel through a data line. The first decision includes determining, based on a position of the first pixel, whether compensation for the first pixel data is required. The second decision includes determining, based on previous subpixel data and present subpixel data for the first pixel, whether the compensation for the first pixel data is required. The third decision includes determining whether the first pixel data complies with a compensation avoidance condition.

Method of driving a display panel and display apparatus performing the same

A display device includes a timing controller and a display. The timing controller is connected to a connector of a USB cable and receive image signals from a host through the USB cable. The display receives the image signals from the timing controller to display an image. The timing controller includes an interface controller, a control signal selector, a data transmitter, and a data processor. The interface controller outputs control signals to control an output order of the image signals. The control signal selector selects and outputs a control signal corresponding to a connection position of the connector from the interface controller. The data transmitter determines the output order of the image signals from the host based on the control signal from the control signal selector. The data processor receives the image signal from the data transmitter and provides the image signal to the display.

Display device

A command input method includes: converting an original pixel data into command embedded pixel data based on a command to control a device, the command being embedded in the command embedded pixel data; transmitting the command embedded pixel data from a host to the device; extracting the command from the command embedded pixel data; and controlling the device according to the extracted command.

Command input method and display system

A liquid crystal display device includes a liquid crystal panel which includes gate lines, data lines crossing the gate lines, and pixels connected to the gate lines and the data lines; a timing controller for receiving a control signal and image data and for generating a gate control signal and a data control signal; a gate driver for generating a gate signal based on the gate control signal and outputting the gate signal to the gate lines; and a data driver for performing data conversion on the image data based on the data control signal and outputting a conversion result to the data lines, wherein the timing controller analyzes the image data frame by frame data and applies two or more inversion driving techniques to frame data.

Liquid crystal display apparatus using inversion driving and driving method thereof

An exemplary embodiment of the present invention discloses a voltage generation circuit of a display apparatus, including at least one resistor, a memory configured to store a resistance value set signal, a controller changing a resistance value of the resistor referring to the resistance value set stored in the memory, and a voltage generator connected to one end of the resistor and is configured to receive an input current corresponding to the resistance value of the resistor and generate a gate-on voltage corresponding to the input current.

Voltage generation integrated circuit and display apparatus having the same

A display device is provided including a timing controller configured to output a test image signal, a data driver configured to output a plurality of data voltages corresponding to the test image signal; and a display panel configured to display a test image corresponding to the data voltages, wherein the timing controller includes a first processor configured to output the test image signal in response to a test signal, and a second processor configured to receive luminance information of the test image, correct a predetermined reference gamma voltage corresponding to the test image with reference to the received luminance information, and output the test signal, which corresponds to the reference gamma voltage, to the first processor.

Display device and operation method thereof and image display system

A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.

Backlight unit and a display device having the same

A backlight unit includes light source units which emit light, and light source driving integrated circuits which control a brightness of the light source units, respectively. Each of the light source driving integrated circuits includes a current generator which generates a first current and a second current, a current level controller which controls a current value of the first current in response to duty ratio information of a pulse width modulation signal, a voltage supply unit which outputs a voltage corresponding to the second current, an output buffer unit which outputs the voltage from the voltage supply unit, and a driving switch unit which drives the light source units to allow a current corresponding to the voltage provided from the output buffer unit to flow through the light source units, where current values of the second current and the first current are the same as each other.

Backlight unit controlling current to light source unit and display apparatus having the same

A display device includes a data driver for applying a data signal to a data line; a gate driver for applying a gate signal to a gate line; a level shifter for shifting a voltage level of a signal applied to the gate driver; and a signal controller for controlling the data driver, the level shifter, and the gate driver, wherein when a signal exchange between the data driver and the signal controller has an abnormality, the signal controller maintains a control signal applied to the level shifter in an off level.

Display device able to prevent an abnormal display caused by a soft fail and a method of driving the same

An electronic device comprises a solar cell a main body which includes a display unit, a battery, and a processing unit and a power controller which connects the solar cell and the main body and controls the electronic device so that power generated from the solar cell is stored in the battery or used in the main body depending on a state of the main body.

Electronic device using solar cell

A backlight assembly includes a light source unit, at least one block driving unit, a controller unit and a noise removing circuit. The light source unit includes a plurality of dimming blocks generating light. The block driving unit drives the dimming blocks. The controller unit controls the block driving unit. The noise removing circuit is connected to the block driving unit and the controller unit to prevent noise from being applied to a reset terminal of the block driving unit.

Backlight assembly

A power supply apparatus includes a storage battery, a power part and a solar battery part. The storage battery provides a charged voltage to an electronic device. The power part provides an external voltage to the electronic device and simultaneously charges the storage battery, upon determining that the external voltage is provided to the power supply apparatus. The solar battery part charges the storage battery using a voltage output by a solar battery upon determining that the external voltage is not provided to the power supply apparatus and the electronic device is not in use, and provides the voltage output by the solar battery and the charged voltage output by the storage battery to the electronic device, upon determining that the external voltage is not provided to the power supply apparatus and the electronic device is in use.

Method and apparatus for supplying power to an electronic device using a solar battery

Provided are a liquid crystal display (Lcd) and a method of driving the same. The LCD includes a timing controller which receives a first image signal corresponding to a first frame frequency and outputs a second image signal corresponding to a second frame frequency; a liquid crystal panel which receives the second image signal and displays an image using the second frame frequency; and a plurality of light-emitting blocks which provide light to the liquid crystal panel, wherein the light-emitting blocks are divided into a plurality of light-emitting groups, each group including at least one of the light-emitting blocks, and, in a first operation mode, a frame, which corresponds to the second frame frequency, includes an off section in which at least one of the light-emitting groups is turned off.

Liquid crystal display and method of driving the same

Growing community of inventors

Gunpo-si, South Korea

Kyung-Uk Choi