Silicon Works Co.

Goyang, South Korea

Silicon Works Co.

Goyang, South Korea
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Patent
Silicon Works Co. | Date: 2017-01-19

The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.


Patent
Silicon Works Co. | Date: 2017-01-19

The present invention discloses a source driver that drives a source driver. The source driver is configured in such a manner that a source driving module for driving display data and a conversion module for converting a sensing signal of a display panel into sensing data share components thereof. Thus, the area of the source driver can be reduced.


Patent
Silicon Works Co. | Date: 2017-01-19

The present invention discloses a source driver for a display apparatus, which drives a display panel using display data and senses a pixel signal of the display panel. The source driver may include a sensor and ADC (Analog-digital Converter) which provide the pixel sensing signal obtained by comparing a reference voltage and a pixel signal of the display panel using one buffer at a sensing period, and drive the source signal to the display panel using the buffer at a driving period.


Patent
Silicon Works Co. | Date: 2016-12-28

Disclosed is a lighting apparatus using an LED as a light source. The lighting apparatus may include: a first driver configured to control a flow of a first current through a low-power switching element by comparing a reference voltage and a sensing voltage, in response to light emission of an LED group; and a second driver configured to form a flow of a second current through a high-power switching element in connection with the flow of the first current of the first driver, in response to light emission of the LED group. The lighting apparatus stably provides a current path for a current corresponding to high power.


Patent
Silicon Works Co. | Date: 2017-01-18

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.


Patent
Silicon Works Co. | Date: 2016-08-18

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.


Patent
Silicon Works Co. | Date: 2016-08-04

Disclosed is a lighting apparatus using LEDs as a light source. The lighting apparatus may include: a dimming control unit configured to provide one of first and second control signals as a dimming control signal, the first control signal corresponding to a dimming signal inputted in response to connection of a dimmer, the second control signal corresponding to disconnection of the dimmer; and a driving current control circuit configured to control a driving current corresponding to light emission of a lighting unit in response to the dimming control signal of the dimming control unit.


Patent
Silicon Works Co. | Date: 2016-08-04

Disclosed is a lighting apparatus using an LED as a light source. The lighting apparatus may connect first and second lighting units in series or parallel according to a rectified voltage, change one or more of first and second driving currents corresponding to light emissions of the first and second lighting units, and have the universality for rectified voltages.


Patent
Silicon Works Co. | Date: 2016-09-27

Provided is a display driving circuit capable of achieving high speed and high resolution by improving an output slew rate. The display driving circuit may include: a gradation voltage generation unit including a plurality of resistor strings corresponding to a plurality of groups into which channels corresponding to display data are grouped, the plurality of resistor strings being configured to provide gradation voltages to digital-analog converters (DACs) corresponding to the respective channels of the corresponding groups; and a display driving unit including the DACs and buffers corresponding to the respective channels, wherein the DACs convert the corresponding display data into data voltages using the gradation voltages, and the buffers provide the corresponding data voltages as source driving signals to a display panel.


Patent
Silicon Works Co. | Date: 2016-12-14

An output circuit of a display driving device may include: a first buffer including first and third output units driven in a range of a positive output signal included in an output voltage domain corresponding to a display panel; a second buffer including second and fourth output units driven in a range of a negative output signal included in the output voltage domain corresponding to the display panel; a first body control unit configured to control a body voltage of the first output unit and the second output unit; and a second body control unit configured to control a body voltage of the third output unit and the fourth output unit.

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