Abstract: An assembled LED display device includes a system motherboard, and multiple to-be-assembled daughterboards assembled on the system motherboard. The system motherboard includes a drive power circuit including multiple power lines, and a gate control circuit including multiple gate lines. Each to-be-assembled daughterboard includes a substrate, at least one transistor switch, and a plurality of LED units disposed on the substrate and each including multiple LEDs connected to a same one of the at least one transistor switch. The LEDs of the LED units of the to-be-assembled daughterboards are arranged in a matrix having multiple rows and multiple columns. With respect to each column, the LEDs in the column are connected to the power line corresponding to the column. With respect to each to-be-assembled daughterboard, gate terminal(s) of the at least one transistor switch is(are) connected to the gate line corresponding to the to-be-assembled daughterboard.

Abstract: A scan-type display apparatus includes an LED array and a data driver. The LED array has a common anode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The data driver includes multiple data driving circuits, each of which includes a current driver and a detector. The current driver has an output terminal connected to the data line corresponding to the data driving circuit, and outputs one of a drive current and a clamp voltage at the output terminal of the current driver based on a pulse width control signal. The detector is connected to the current driver, and generates a detection signal that indicates whether any one of the LEDs connected to the data line corresponding to the data driving circuit is short circuited based on a detection timing signal and a feed-in voltage related to a voltage at the output terminal of the current driver.

Abstract: An interleaving driving method of light emitting diode array comprises: receiving image signal; converting the image signal into gray scale signals, the gray scale signals correspond to the plurality of light emitting channels, respectively, to execute multiple steps. The multiple steps include: generating a high gray scale data group and a low gray scale data group; when there is data in the high gray scale data group, drive the light emitting diode channel corresponding to the target gray scale signal during a first turn on time interval; when there is data in the low gray scale data group, drive the light emitting diode channel corresponding to the target gray scale signal during a second turn on time interval which does not overlap the first turn on time interval and a first gray scale signal and a second gray scale signal of the gray scale signals does not overlap each other.

Abstract: A scan-type display apparatus includes an LED array and a scan driver. The LED array has a common anode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The scan driver includes multiple scan driving circuits. Each scan driving circuit includes a voltage generator and a detector. The voltage generator has an output terminal that is connected to the scan line corresponding to the scan driving circuit, and is configured to output one of an input voltage and a clamp voltage at the output terminal of the voltage generator. The detector is connected to the output terminal of the voltage generator, and generates a detection signal that indicates whether any one of the LEDs connected to the scan line corresponding to the scan driving circuit is short circuited based on a voltage at the output terminal of the voltage generator and a detection timing signal.

Abstract: A mixed light light-emitting diode device includes first, second, and third chips, each having a first-type semiconductor layer with a first surface, a second-type semiconductor layer with a second surface opposite to the first surface, and a third surface indenting from the first surface and situated on the second-type semiconductor layer. The second and third chips have their first surfaces disposed above and facing the first surface of the first chip. A first-type electrode penetrates through the second and first surfaces of the first chip and contacts all first surfaces of first, second, and third chips. Two second-type electrodes each penetrates through the second and third surfaces of the first chip and connect the first chip to one of the second and third chips.

Abstract: An assembled LED display device includes a system motherboard, and multiple to-be-assembled daughterboards assembled on the system motherboard. The system motherboard includes a drive power circuit including multiple power lines, and a gate control circuit including multiple gate lines. Each to-be-assembled daughterboard includes a substrate, at least one transistor switch, and a plurality of LED units disposed on the substrate and each including multiple LEDs connected to a same one of the at least one transistor switch. The LEDs of the LED units of the to-be-assembled daughterboards are arranged in a matrix having multiple rows and multiple columns. With respect to each column, the LEDs in the column are connected to the power line corresponding to the column. With respect to each to-be-assembled daughterboard, gate terminal(s) of the at least one transistor switch is(are) connected to the gate line corresponding to the to-be-assembled daughterboard.

Abstract: A light emitting display device includes a substrate, a drive power circuit, a gate circuit unit, multiple LEDs and a power switch unit. The power switch unit includes multiple first transistor switches and at least one second transistor switch that cooperatively control current flows through the LEDs. The first transistor switches are respectively connected to first terminals of the LEDs. The at least one second transistor switch is connected to second terminals of the LEDs. The first transistor switches are further connected to the drive power circuit to receive multiple drive currents, and are further connected to the gate circuit unit to receive a timing input. The at least one second transistor switch is further connected to the gate circuit unit to receive a timing input. The light emitting display device can have reduced parasitic capacitance effect, and thus reduced power consumption and have improved display quality.

Abstract: An LED display device includes a system board, and multiple daughterboards that are assembled on the system board. The system board includes a drive power circuit, a first gate circuit and a second gate circuit. Each daughterboard includes a substrate, multiple LEDs that are disposed on the substrate, multiple first transistor switches that are respectively connected to the LEDs, and at least one second transistor switch that is connected to the LEDs. With respect to each daughterboard, the first transistor switches and the at least one second transistor switch cooperatively control current flows through the LEDs; the first transistor switches are further connected to the drive power circuit to respectively receive multiple drive currents, and are further connected to the first gate circuit to receive a timing signal; and the at least one second transistor switch is further connected to the second gate circuit to receive a timing signal.

Abstract: A scan-type display apparatus includes an LED array and a data driver. The LED array has a common cathode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The data driver includes multiple data driving circuits, each of which includes a current driver and a detector. The current driver has an output terminal connected to the data line corresponding to the data driving circuit, and outputs one of a drive current and a clamp voltage at the output terminal of the current driver based on a pulse width control signal. The detector is connected to the current driver, and generates a detection signal that indicates whether any one of the LEDs connected to the data line corresponding to the data driving circuit is short circuited based on a detection timing signal and a feed-in voltage related to a voltage at the output terminal of the current driver.

Abstract: A method for transferring micro light emitting diodes (micro-LEDs) includes forming a plurality of micro light emitting diode (micro-LED) chips having an epitaxial stacked layer and an electrode on a base; attaching the electrodes of the micro-LED chips to a temporary substrate and removing the base from the micro-LED chips; forming a light shielding layer on the temporary substrate; forming a light-transmissible packaging layer to cover the light shielding layer and the micro-LED chips; removing the temporary substrate to form a light emitting assembly; dividing the light emitting assembly to separate a plurality of pixels constituted by the micro-LEDs; and transferring the pixels to a permanent substrate.

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 backlight driving method includes steps of: (A) receiving a piece of image data that includes a number (K) of segments, where K?2; (B) generating a piece of adjustment data that includes a number (K) of segments; each segment of the adjustment data being generated based on a respective segment of the image data and upon receipt of the respective segment of the image data; (C) generating, based on a piece of delay data and on an original synchronization control (SC) signal that has a pulse, an internal SC signal that has a number (K) of pulses; and (D) generating a backlight driving output based on the adjustment data and the internal SC signal, so as to drive a backlight source of a scan-type display to emit light.

Abstract: A display system includes a light emitting array and a driving device. The light emitting array includes multiple scan lines, multiple drive lines and multiple light emitting elements. The driving device includes a controller, a charge balance line and a charge sharing circuit. The controller generates a control output. The charge sharing circuit is coupled to the drive lines, the charge balance line and the controller, and receives the control output from the controller. With respect to each of the drive lines, the charge sharing circuit is operable, based on the control output, to establish or not establish an electrical connection between the drive line and the charge balance line.

Abstract: A backlight driving method includes steps of: (A) generating an original synchronization control (SC) signal, and a serial input signal that contains multiple predetermined delay values; (B) generating multiple internal SC signals based on the original SC signal and the delay values, such that respective time delays of the internal SC signals with respect to the original SC signal are respectively dependent on the delay values; and (C) generating multiple backlight driving outputs based on the internal SC signals to respectively drive multiple backlight sources, such that the backlight sources emit light in an order dependent on the delay values.

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 scan-type display apparatus includes an LED array and a scan driver. The LED array has a common cathode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The scan driver includes multiple scan driving circuits. Each scan driving circuit includes a voltage generator and a detector. The voltage generator has an output terminal that is connected to the scan line corresponding to the scan driving circuit, and is configured to output one of a common voltage and a clamp voltage at the output terminal of the voltage generator. The detector is connected to the output terminal of the voltage generator, and generates a detection signal that indicates whether any one of the LEDs connected to the scan line corresponding to the scan driving circuit is short circuited based on a voltage at the output terminal of the voltage generator and a detection timing signal.

Abstract: A scan-type display apparatus includes an LED array and a data driver. The LED array has a common cathode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The data driver includes multiple data driving circuits, each of which includes a current driver and a detector. The current driver has an output terminal connected to the data line corresponding to the data driving circuit, and outputs one of a drive current and a clamp voltage at the output terminal of the current driver based on a pulse width control signal. The detector is connected to the current driver, and generates a detection signal that indicates whether any one of the LEDs connected to the data line corresponding to the data driving circuit is short circuited based on a detection timing signal and a feed-in voltage related to a voltage at the output terminal of the current driver.

Abstract: A scan-type display apparatus includes an LED array and a data driver. The LED array has a common anode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The data driver includes multiple data driving circuits, each of which includes a current driver and a detector. The current driver has an output terminal connected to the data line corresponding to the data driving circuit, and outputs one of a drive current and a clamp voltage at the output terminal of the current driver based on a pulse width control signal. The detector is connected to the current driver, and generates a detection signal that indicates whether any one of the LEDs connected to the data line corresponding to the data driving circuit is short circuited based on a detection timing signal and a feed-in voltage related to a voltage at the output terminal of the current driver.

Abstract: A scan-type display apparatus includes an LED array and a scan driver. The LED array has a common anode configuration, and includes multiple scan lines, multiple data lines and multiple LEDs. The scan driver includes multiple scan driving circuits. Each scan driving circuit includes a voltage generator and a detector. The voltage generator has an output terminal that is connected to the scan line corresponding to the scan driving circuit, and is configured to output one of an input voltage and a clamp voltage at the output terminal of the voltage generator. The detector is connected to the output terminal of the voltage generator, and generates a detection signal that indicates whether any one of the LEDs connected to the scan line corresponding to the scan driving circuit is short circuited based on a voltage at the output terminal of the voltage generator and a detection timing signal.

Abstract: A display device includes a carrier, a substrate unit, a plurality of light emitting elements and a circuit unit. The carrier has a top surface and a bottom surface opposite to each other, and a peripheral surface interconnecting the top and bottom surfaces. The substrate unit is disposed on one side of the peripheral surface of the carrier. The light emitting elements are spacedly disposed on the top surface of the carrier. The circuit unit includes a plurality of circuit modules that are disposed on the substrate unit and that are electrically connected to the light emitting elements. Each of the circuit modules includes a switch control circuit and a driving circuit that are configured to control the light emitting elements.