Silicon Works Co., Ltd.

Lx Semicon Co., Ltd.

Yong Jung Kwon

Jung Bae Yun

Jeung Hie Choi

Jong Hwi Park

Sang Min Lee

Min Young Jeong

Ju Young Shin

Seung Hwan Ji

Ho Sung Hong

Gi Baek Choi

Sang Woo Kim

Joon Ho Na

Ji Hun Kim

Yun Tack Han

An Young Kim

Hae Won Lee

Jung Il Seo

Yeong Joon Son

Hyun Min Song

Jeong Bae Yun

Sung Wan Jung

The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.

Pixel driving circuit for display panel

The present disclosure relates to a pixel sensing circuit in which a test is performed only on selected specific channels among channels of the pixel sensing circuit and the total test time of the pixel sensing circuit and data throughput for the test may be reduced.

Pixel sensing circuit and integrated circuit

An embodiment provides a latch circuit which outputs, to a digital analog converter (DAC), a digital signal including grayscale data, the latch circuit including a first latch configured to store the digital signal and a second latch configured to output the digital signal by controlling first timing at which a level of a first signal included in the digital signal becomes an enable level, based on a center grayscale. The grayscale data includes first grayscale data and second grayscale data.

Latch circuit for reducing noise based on center grayscale and data driver including the same

The present disclosure relates to a data drive circuit capable of increasing clock and data recovery stability by generating a clock synchronized with input data, a clock recovery method thereof, and a display drive device having the same, and the data drive circuit according to an aspect includes a receiver including a clock and data recovery part configured to recover a test data pattern from input data using an internal clock, and a data comparator configured to compare the recovered test data pattern with a predetermined reference data pattern to generate a control signal according to a degree of asynchronicity between the recovered test data pattern and the reference data pattern, wherein the clock and data recovery part recovers a clock synchronized with the input data according to the control signal, and recovers control information and image data from the input data using the recovered clock.

Data drive circuit, clock recovery method of the same, and display drive device having the same

The present embodiment relates to a device for driving pixels arranged on a display panel, and a data driving device according to the present embodiment can transmit image data to a plurality of channel groups by including two or more mapping units for mapping the image data to a channel link or by using one data mapping unit connected to a plurality of multiplexers.

Data driving device for driving pixels arranged on display panel

An embodiment provides a technology relating to data transmission or reception in a display panel. In the embodiment, a plurality of integrated circuits sharing a data line may transmit an indication signal through signal lines connected 1:1 to the circuits, and transmit data through the data line in response to the indication signal.

Integrated circuit for operating display panel

Disclosed are a source driver and a display device using the same, and the display device includes the source driver that generates sensing data by performing a pre-processing operation on pixel data obtained by sensing display pixels, and a timing controller that generates correction data for correction for pixel characteristics by performing a post-processing operation on the sensing data.

Sensing circuit of source driver and display device using the same

Disclosed is a source driver including a sensing circuit capable of sensing whether a short occurred between a data output line and a power line. The source driver may include: an output circuit configured to output a preset voltage to a display panel in a checking mode; and a sensing circuit configured to sense whether data output lines connecting the output circuit and the display panel are shorted, using the preset voltage, and output a sensing result signal.

Source driver including sensing circuit and display device using the same

Disclosed is a display device capable of assigning unique information to a plurality of source drivers and easily controlling an operation sequence and operation time. The display device may include: a timing controller configured to generate an input signal having a clock signal embedded between data signals each including a pixel data packet and a control data packet, and provide the input signal to a source driver; and a source driver configured to receive the input signal, sense pixel information of a display panel, and enabled to transmit the pixel information to the timing controller in response to preset information contained in the control data packet, and configured to transmit the pixel information to the timing controller during an operation time corresponding to operation time information contained in the control data packet.

Display device

The present invention relates to a circuit board for COF (Chip on Film) package, which is capable of preventing an influence of coupling noise on a core block of an integrated circuit. The circuit board may include: a base film defined a core block region overlapping a predetermined location of a core block within an integrated circuit and having the same area as or larger area than the core block; first routing patterns formed on the base film; and a first block pattern covering the core block region. The first routing patterns may be formed outside the first block pattern at the same layer as the first block pattern.

Circuit board for COF package

The present invention relates to an output voltage stabilization circuit. Specifically, the present invention relates to an output voltage stabilization circuit of a display device driving circuit, which generates a reference current dependent on a high source voltage using a current source independent of a magnitude of the high source voltage, generates a reference current dependent on a low source voltage using a current source independent of a magnitude of the low source voltage, and then generates a control signal by comparing the magnitudes to each other, whereby the output voltage stabilization circuit may stabilize an output voltage regardless of an order in which the low source voltage and the high source voltage are turned off in a circuit using both the low source voltage and the high source voltage.

Growing community of inventors

Cheongju-si, South Korea

Yong Jung Kwon