Abstract: A method of building a model of defect inspection for a light-emitting diode (LED) display is adapted to be implemented by a model-building system. The model-building system stores captured images respectively of LED displays that were displaying images. Each of the captured images corresponds to a status tag that indicates a status of the image being displayed by the respective one of the LED displays. The method includes: performing data preprocessing on the captured images to result in pieces of pre-processed data that respectively correspond to the captured images; and building a model of defect inspection by using an algorithm of machine learning based on the pieces of pre-processed data and the status tags.

Abstract: A method for packaging an integrated circuit chip includes the steps of: a) providing a plurality of dies and a lead frame which includes a plurality of bonding parts each having a die pad, a plurality of leads each having an end region disposed on and connected to the die pad, and a plurality of bumps each disposed on the end region of a respective one of the leads; b) transferring each of the dies to the die pad of a respective one of the bonding parts to permit each of the dies to be flipped on the respective bonding part; and c) hot pressing each of the dies and the die pad of a respective one of the bonding parts to permit each of the dies to be bonded to the bumps of the respective bonding part.

Abstract: A chip on board (COB) display device includes a substrate, an array of spaced-apart micro light-emitting diode (LED) chips, a light-shielding layer, and an anti-glare layer. The micro LED chips are disposed on the substrate to define thereamong, a recessed portion recessed relative to the micro LED chips. The light-shielding layer is filled in the recessed portion. The anti-glare layer is disposed to cover the light-shielding layer and the micro LED chips, and has a surface which is opposite to the substrate and which is formed with a patterned microstructure. A method for making the COB display device is also disclosed herein.

Abstract: A current driving device includes a switch, a current generator and a brightness divider. The switch is coupled between the current generator and a light emitting element, and switches between conduction and non-conduction based on a pulse signal. Based on a magnitude control signal, the current generator generates a drive current that has a magnitude related to the magnitude control signal, and that flows through the light emitting element when the switch conducts. The brightness divider is coupled to the switch and the current generator, and generates the pulse signal and the magnitude control signal based on a brightness value such that average brightness of the light emitting element is related to the brightness value.

Abstract: A metal-oxide semiconductor module includes multiple metal-oxide semiconductor components separated from one another by at least one first trench. Each of the metal-oxide semiconductor components includes a heavily doped semiconductor layer which includes a drain region, an epitaxial layer which is formed with an indentation such that the drain region is partially exposed from the epitaxial layer, and a metallic patterned contact unit. The epitaxial layer also includes a source region and a gate region that are spaced-apart formed therein. The metallic patterned contact unit includes source, gate, and drain patterned contacts which are electrically connected to the source, gate, and drain regions, respectively. A light-emitting diode display device including the metal-oxide semiconductor module is also disclosed.

Abstract: A display system includes a number (M) of scan line units, a number (N) of channel line units, a number (R) of light emitting arrays connected to the scan line units and the channel line units, and a number (L) of shared driving circuits, where M?1, N?1, R?1, and L is equal to a maximum of M and N when M?N, and is equal to M otherwise. Each shared driving circuit is operable to generate or not to generate a scan driving output, and is operable to generate or not to generate a channel driving output. Each of a number (M) of the shared driving circuits is for providing the scan driving output to a respective scan line unit. Each of a number (N) of the shared driving circuits is for providing the scan driving output to a respective scan line unit.

Abstract: A display system includes a light emitting array and a driving circuit. The light emitting array includes: a plurality of scan lines, a plurality of channel lines, and a plurality of light emitting elements connected to the scan lines and the channel lines. The driving circuit includes: a delay-locked loop generating an internal global clock signal; a signal processor generating a scan control output and a channel control output based on the internal global clock signal and display data; a scan driver driving the scan lines based on the scan control output; and a channel driver providing a plurality of driving current signals respectively to the channel lines based on the channel control signal.

Abstract: An under-display sensing device includes a liquid crystal display (LCD) module which includes an LCD unit, an optical filter unit and an optical sensing unit. The LCD unit has a display surface and a backlight unit disposed at a side opposite to the display surface for emitting a light. The optical filter unit is disposed on the backlight unit at a side opposite to the LCD unit for filtering the light to obtain a filtered light having predetermined wavelengths. The optical sensing unit is disposed on the optical filter unit at a side opposite to the backlight unit for detecting the filtered light from the optical filter unit.

Abstract: A method for sensing a biometric object using an electronic device includes the steps of: (a) emitting a sensing light from a backlight unit upon the biometric object contacting a sensing region on a display surface, and allowing the sensing light to pass through a color filter unit and then reach and be reflected by the biometric object to return as a reflected light; and (b) controlling arrangement of liquid crystal molecules located in a first region of a liquid crystal layer to define a first light path, and allowing the reflected light having predetermined wavelengths to pass through the color filter unit and the first light path to reach and be detected by the optical sensing unit.

Abstract: A display device including a circuit substrate, a plurality of pixels, and a light-shielding layer is provided. The pixels include a plurality of light-emitting elements. The light-emitting elements are disposed on the circuit substrate and are electrically connected to the circuit substrate. The light-emitting elements in the pixels are arranged along an arrangement direction. The light-shielding layer is disposed on the circuit substrate and has a plurality of pixel apertures. The pixels are disposed in a corresponding pixel aperture. The light-shielding layer includes a plurality of first light-shielding patterns extending in the arrangement direction and a plurality of second light-shielding patterns connected to the first light-shielding patterns. The extending direction of the second light-shielding patterns is different from the extending direction of the first light-shielding patterns.

Abstract: A power semiconductor device includes a substrate, a main body and an electrode unit. The main body includes an active portion, an edge termination portion surrounding the active portion, and an insulating layer disposed on the edge termination portion. The edge termination portion includes a first-type semiconductor region, and a plurality of spaced-apart second-type semiconductor segments distributed in the first-type semiconductor region and arranged at intervals along a Y-direction directing from the insulating layer toward the substrate, and an X-direction directing from the active portion toward the edge termination portion. The electrode unit includes a first electrode and a second electrode.

Abstract: A display device including a circuit substrate, a plurality of pixels, and a light-shielding layer is provided. The pixels include a plurality of light-emitting elements. The light-emitting elements are disposed on the circuit substrate and are electrically connected to the circuit substrate. The light-emitting elements in the pixels are arranged along an arrangement direction. The light-shielding layer is disposed on the circuit substrate and has a plurality of pixel apertures. The pixels are disposed in a corresponding pixel aperture. The light-shielding layer includes a plurality of first light-shielding patterns extending in the arrangement direction and a plurality of second light-shielding patterns connected to the first light-shielding patterns. The extending direction of the second light-shielding patterns is different from the extending direction of the first light-shielding patterns.

Abstract: A dual light source system is adapted to be disposed in a display region of a display device and includes first and second light sources. The first light source includes a plurality of first packaging units each including at least one first LED element and is configured to emit a plurality of visible lights having different wavelengths within a first wavelength range to generate a first image. The second light source is configured to emit a plurality of invisible lights within a second wavelength range to generate a second image without interfering with the first image and includes a plurality of spaced-apart second packaging units each including at least one second LED element. A method of generating dual images is also disclosed.

Abstract: A light emitting diode (LED) failure detecting device is operatively associated with an LED array, and includes a driving circuit and a determining circuit. The driving circuit is used to be coupled to scan lines and data lines of the LED array, and drives, based on a first control input corresponding to selection of one of LED units of the LED array, the LED units in such a way that a current flows through said one of the LED units. The determining circuit generates, based at least on the voltages respectively at the data lines and on a second control input corresponding at least to selection of the data line that is coupled to said one of the LED units, a determination output that indicates whether said one of the LED units is determined to have failed.

Abstract: A power semiconductor device includes a substrate, a main body and an electrode unit. The main body includes an active portion, an edge termination portion surrounding the active portion, and an insulating layer disposed on the edge termination portion. The edge termination portion includes a first-type semiconductor region, and a plurality of spaced-apart second-type semiconductor segments distributed in the first-type semiconductor region and arranged at intervals along a Y-direction directing from the insulating layer toward the substrate, and an X-direction directing from the active portion toward the edge termination portion. The electrode unit includes a first electrode and a second electrode.

Abstract: A light emitting diode (LED) failure detecting device is operatively associated with an LED array, and includes a driving circuit and a determining circuit. The driving circuit drives LED units of the LED array through scan lines and data lines of the LED array in such a way that a current flows through one of the LED units. The determining circuit selects a voltage at the data line that is coupled to said one of the LED units, and generates, based on a difference between a first sample voltage that is related to at least the selected voltage at a first time point and a second sample voltage that is related to at least the selected voltage at a second time point, a determination output indicating whether said one of the LED units is determined to have failed.

Abstract: In a method for driving a light-emitting diode (LED) device, a driving system is configured to: a) receive a number of driving signals, each corresponding to a period the LED device is to be activated; b) determine a number of repetitions for output of each of the driving signals; c) determine an average driving period for each of the driving signals; d) constructing a sequence list of driving signals to be sent to the LED device, the sequence list including a plurality of rows, each of the rows is numbered and includes two columns for containing respectively two entries of the driving signals therein; and e) sequentially transmit the two entries of the driving signals contained in each of the rows included in the sequence list to the LED device.

Abstract: A voltage control device includes an output module and a control module. The output module provides an output current at an output terminal thereof based on a control voltage. The control module includes a comparing circuit, a capacitor, a charging circuit and a discharging circuit. The comparing circuit compares a to-be-compared voltage, which is associated at least with a to-be-controlled voltage at the output terminal of the output module, with a predetermined reference voltage to generate a comparison signal. The capacitor provides the control voltage. The charging circuit is operable to charge the capacitor based on the comparison signal. The discharging circuit is operable to discharge the capacitor based on the comparison signal.

Abstract: A power semiconductor device includes a substrate, a main body, and an electrode unit. The main body includes an active portion disposed on the substrate, an edge termination portion, and an insulating layer disposed on the edge termination portion. The edge termination portion includes first-type semiconductor region, a second-type semiconductor region and a top surface. The first-type semiconductor region is adjacent to the active portion and has a first-type doping concentration decreased from the top surface toward the substrate. The electrode unit includes a first electrode disposed on the insulating layer, and a second electrode disposed on the substrate.

Abstract: A voltage control device includes an output module and a control module. The output module provides an output current at an output terminal thereof based on a control voltage. The control module includes a comparing circuit, a capacitor, a charging circuit and a discharging circuit. The comparing circuit compares a to-be-compared voltage, which is associated at least with a to-be-controlled voltage at the output terminal of the output module, with a predetermined reference voltage to generate a comparison signal. The capacitor provides the control voltage. The charging circuit is operable to charge the capacitor based on the comparison signal. The discharging circuit is operable to discharge the capacitor based on the comparison signal.