Abstract: A backlight module includes a pixel driver integrated circuit (PDIC) configured to generate a switch control signal and a pulse control signal, the pulse control signal including timing information and dimming data, a pixel integrated circuit (PIC) configured to generate a pulse modulation signal based on the pulse control signal, a switch group configured to transfer a driving voltage based on the switch control signal, and a backlight unit (BLU) including a first end connected to the switch group and a second end connected to the PIC, the BLU configured to emit light on a panel based on the driving voltage and the pulse modulation signal, where the PDIC is configured to generate the switch control signal and the pulse control signal such that a light emitting diode emits light at a time point at which a pixel of the panel operates.

Abstract: In a backlight apparatus, a master driving circuit generates a transmission frame including a training period including a clock training pattern and a data period including a plurality of data packets respectively corresponding to the plurality of blocks. A plurality of slave driving circuits correspond to the plurality of blocks, respectively, and are connected to the master driving circuit in a daisy chain structure. Each slave driving circuit receives the transmission frame through the daisy chain structure, recovers a clock based on the clock training pattern, and drives the plurality of light emitting elements included in a corresponding block among the plurality of blocks based on its own data packet among a plurality of data packets.

Abstract: A backlight module includes a pixel driver integrated circuit (PDIC) configured to generate a switch control signal and a pulse control signal, the pulse control signal including timing information and dimming data, a pixel integrated circuit (PIC) configured to generate a pulse modulation signal based on the pulse control signal, a switch group configured to transfer a driving voltage based on the switch control signal, and a backlight unit (BLU) including a first end connected to the switch group and a second end connected to the PIC, the BLU configured to emit light on a panel based on the driving voltage and the pulse modulation signal, where the PDIC is configured to generate the switch control signal and the pulse control signal such that a light emitting diode emits light at a time point at which a pixel of the panel operates.

Abstract: In a backlight apparatus, a master driving circuit generates a transmission frame including a training period including a clock training pattern and a data period including a plurality of data packets respectively corresponding to the plurality of blocks. A plurality of slave driving circuits correspond to the plurality of blocks, respectively, and are connected to the master driving circuit in a daisy chain structure. Each slave driving circuit receives the transmission frame through the daisy chain structure, recovers a clock based on the clock training pattern, and drives the plurality of light emitting elements included in a corresponding block among the plurality of blocks based on its own data packet among a plurality of data packets.

Abstract: A fingerprint sensing device includes a sensing circuit configured to extract sensing data from nodes included in each of sampling regions of a sensor array. The fingerprint sensing device also includes a control circuit configured to calculate a number of the nodes based on the extracted sensing data to produce sensing data distributions for each of the sampling regions and compare the sensing data distributions with reference distributions, configured to determine that the sampling regions from which the sensing data distributions corresponding to the reference distributions are extracted are effective contact regions, and configured to generate fingerprint information from the sensor array when the number of effective contact regions is greater than or equal to a threshold.

Abstract: A fingerprint sensing device includes a sensing circuit configured to extract sensing data from nodes included in each of sampling regions of a sensor array. The fingerprint sensing device also includes a control circuit configured to calculate a number of the nodes based on the extracted sensing data to produce sensing data distributions for each of the sampling regions and compare the sensing data distributions with reference distributions, configured to determine that the sampling regions from which the sensing data distributions corresponding to the reference distributions are extracted are effective contact regions, and configured to generate fingerprint information from the sensor array when the number of effective contact regions is greater than or equal to a threshold.

Abstract: A touchscreen device may include a panel unit including a plurality of first electrodes and a plurality of second electrodes; a driving circuit unit sequentially applying a driving signal having a predetermined period to the plurality of first electrodes; a sensing circuit unit detecting levels of capacitance from the plurality of second electrodes; and a driving voltage generating unit generating a driving voltage. The driving voltage generating unit adjusts a level of the driving voltage depending on a detected voltage which is detected in a first electrode, to which the driving signal is applied, among the plurality of first electrodes in a calibration section.

Abstract: A touchscreen apparatus may include a signal converting unit generating digital signals including a plurality of data according to changes in capacitance in a plurality of nodes; a signal processing unit changing levels of the plurality of data of the digital signals; and a calculating unit determining a touch according to the digital signals output from the signal processing unit. The signal processing unit may change the levels of the plurality of data by using a portion of the plurality of data included in a plurality of regions partitioned according to a plurality of predetermined reference levels.

Abstract: There are provided a touchscreen device and a method of driving the same. The touchscreen device includes: a driving circuit unit sequentially applying driving signals to a plurality of first electrodes in a plurality of periods of time; a sensing circuit unit acquiring sensing signals from a plurality of second electrodes intersecting with the plurality of first electrodes; a signal conversion unit converting the sensing signals into digital signals; and a buffer unit receiving the sensing signals from the sensing circuit unit and holding the received sensing signals for a predetermined period of time to transmit them to the signal conversion unit, wherein the signal conversion unit converts, during a current period of time among the plurality of periods of time, each of the sensing signals which has been generated according to a driving signal applied during an immediately previous period of time into digital signals.

Abstract: There are provided a data processing method and a touch sensing apparatus. The data processing method includes (a) obtaining a plurality of pieces of sensing data according to one or more touch inputs; (b) selecting one or more pieces of temporary reference data having the minimum difference value between adjacent other pieces of sensing data; (c) calculating difference values between the one or more pieces of temporary reference data; (d) calculating an N number of difference values between the N number of pieces of sensing data obtained from the nodes included in the Kth row and an N number of pieces of sensing data obtained from nodes included in the K-1th row; and (e) determining the temporary reference data having a relatively small representative value as reference sensing data of the Kth row.

Abstract: There are provided a touch sensing apparatus and a touch sensing method. The touch sensing apparatus includes: a panel unit including a plurality of driving electrodes and a plurality of sensing electrodes; a driving circuit unit applying driving signals to the plurality of driving electrodes, respectively; a sensing circuit unit measuring a change in capacitance of node capacitors generated in intersections of the plurality of the driving electrodes and the plurality of sensing electrodes; a signal conversion unit generating a first digital signal based on the change in capacitance; and a calculation unit determining a touch according to the first digital signal, wherein the driving circuit unit and the sensing circuit unit are operated by an input voltage, and the signal conversion unit and the calculation unit are operated by a low voltage drop out (LDO) voltage generated by decreasing the input voltage.

Abstract: There is provided a touch sensing method including: classifying sensed pieces of data obtained from a panel unit as a plurality of groups according to a predetermined reference; selecting a portion of groups in which variations of the sensed pieces of data included in each of the plurality of groups are lower than a first threshold value; calculating representative values with respect to each of portion of the groups; and determining a noise canceling method by comparing the variations of representative values with a second threshold value.

Abstract: There are provided a touch sensing method and a touch sensing apparatus. The touch sensing method includes calibrating an offset value; obtaining sensed data from a panel unit, performing a difference operation on the sensed data and the offset value to calculate valid data, when the valid data is higher than a first threshold value, calculating a correlation value between the valid data and reference data, and comparing the correlation value with a second threshold value to determine whether to update the offset value and whether to filter the valid data.

Abstract: There are provided a touch sensing device and a touch sensing method. The touch sensing device includes a plurality of first electrodes extending in a first axis direction, a plurality of second electrodes extending in a second axis direction intersecting the first axis, and a control unit detecting a plurality of changes in capacitance generated between the plurality of first electrodes and the plurality of second electrodes and thus determining a touch, wherein the control unit determines the touch based on at least one of a plurality of first error information signals corresponding to the plurality of respective first electrodes and a plurality of second error information corresponding to the plurality of respective second electrodes.

Abstract: There are provided a touch sensing method and a touch sensing device. The touch sensing method includes: obtaining sensed data from a panel unit; calculating valid data by removing an offset value from the sensed data; calculating reference data by comparing the offset value with a backup offset value when the valid data is higher than a first reference value; and determining a touch based on the reference data and the valid data.

Abstract: There are provided an electronic pen, and an electronic pen data input system and method using the same. The electronic pen includes: a triaxial accelerometer sensor sensing a change in acceleration based on triaxial coordinates of three fixed axes; and a controlling unit setting a reference point represented by the triaxial coordinates and generating acceleration information using the change in acceleration sensed by the triaxial accelerometer sensor due to movement of the electronic pen.

Abstract: There are provided an apparatus and a method for estimating edge areas of pixels in a digital image to thereby prevent an edge sharpening algorithm from being applied to non-edge area of the digital image. Therefore, the apparatus can accurately determine whether each pixel is in an edge area or in a non-edge area, by generating a binary mask obtained by using a luminance difference average between each pixel and each of neighboring pixels in the digital image. Moreover, the determination of an edge-area or a non-edge area may be applied to various digital images, by adjusting a level of edge-area determination.

Abstract: Disclosed herein is a TPMS transmission module having a power saving function, the TPMS transmission module including: a micom outputting a switch turn-off control signal when a vehicle having the TPMS transmission module mounted therein is stopped; a switch supplying a power when the switch is turned on and blocking the supply of the power when it is turned off; an energy generator generating and outputting an electric power when a tire rotates; and a switch controller turning on the switch when the electric power of a predetermined voltage or more is generated in the energy generator and turning off the switch when a switch turn off control signal is output from the micom.

Abstract: There are provided a data processing method and a touch sensing apparatus. The data processing method includes (a) obtaining a plurality of pieces of sensing data according to one or more touch inputs; (b) selecting one or more pieces of temporary reference data having the minimum difference value between adjacent other pieces of sensing data; (c) calculating difference values between the one or more pieces of temporary reference data; (d) calculating an N number of difference values between the N number of pieces of sensing data obtained from the nodes included in the Kth row and an N number of pieces of sensing data obtained from nodes included in the K-1th row; and (e) determining the temporary reference data having a relatively small representative value as reference sensing data of the Kth row.

Abstract: An apparatus and method for removing red-eye in a 2D image, which can remove red-eye more naturally and apply a gain for a real-time correction on input pixels by differently performing a correction degree according to positions of pixels included in red-eye.