Patents Assigned to Macroblock, Inc.
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Publication number: 20230196987Abstract: 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.Type: ApplicationFiled: December 5, 2022Publication date: June 22, 2023Applicant: MACROBLOCK, INC.Inventors: Chi-Min HSIEH, Che-Wei CHANG, Chen-Yuan KUO, Wei-Hsiang CHENG
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Publication number: 20230196989Abstract: 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.Type: ApplicationFiled: December 5, 2022Publication date: June 22, 2023Applicant: MACROBLOCK, INC.Inventors: Chi-Min HSIEH, Che-Wei CHANG, Chen-Yuan KUO, Wei-Hsiang CHENG
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Publication number: 20230196988Abstract: 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.Type: ApplicationFiled: December 5, 2022Publication date: June 22, 2023Applicant: MACROBLOCK, INC.Inventors: Chi-Min HSIEH, Che-Wei CHANG, Chen-Yuan KUO, Wei-Hsiang CHENG
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Patent number: 11664481Abstract: 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.Type: GrantFiled: January 28, 2021Date of Patent: May 30, 2023Assignee: MACROBLOCK, INC.Inventor: Yi-Sheng Lin
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Patent number: 11651745Abstract: A backlight driving method includes steps of: (A) receiving a piece of image data; (B) generating a piece of adjustment data based on the image data; (C) generating, based on a plurality of predetermined delay values and on an original synchronization control (SC) signal that has a pulse, an internal SC signal that has a plurality of pulses, where respective time delays of the pulses of the internal SC signal with respect to the pulse of the original SC signal are respectively dependent on the predetermined delay values; 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 intermittently.Type: GrantFiled: May 10, 2022Date of Patent: May 16, 2023Assignee: MACROBLOCK, INC.Inventors: Chang-Lin Chen, Chun-Yi Li, Wei-Chung Chen
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Patent number: 11612036Abstract: A driving system for driving light-emitting modules includes driving current generation modules connected respectively to the light-emitting modules, and a brightness modulation module connected to the current generation modules and the light-emitting modules. Each driving current generation module is configured to receive signals from the brightness modulation module to control a driving current that flows through the light-emitting module it is connected to. The brightness modulation module is configured to generate the signals based on voltages provided at terminals of the light-emitting modules that are connected to the driving current generation modules.Type: GrantFiled: April 20, 2022Date of Patent: March 21, 2023Assignee: MACROBLOCK, INC.Inventor: Ting-Ta Chiang
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Patent number: 11568793Abstract: A scan-type display apparatus includes an LED array, a display module, a control module and a driver module. The LED array has a common anode configuration. The control module generates a synchronization control (SC) signal. Based on the SC signal, the driver module outputs an input voltage to scan lines of the LED array sequentially without overlapping in time so as to drive LEDs of the LED array to emit light in a line scan manner, and generates an image refresh signal that is related to the output of the input voltage to one of the scan lines which corresponds to a last line of the line scan in each line scan cycle and that is further related to refreshing of images on a display constituted by the LED array and the display module.Type: GrantFiled: March 24, 2021Date of Patent: January 31, 2023Assignee: MACROBLOCK, INC.Inventors: Yi-Ta Wu, Chun-Yi Li, Hung-I Cheng, Ping-Kai Huang
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Publication number: 20220366860Abstract: 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.Type: ApplicationFiled: May 10, 2022Publication date: November 17, 2022Applicant: Macroblock, Inc.Inventors: Chang-Lin Chen, Chun-Yi Li, Wei-Chung Chen
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Publication number: 20220366863Abstract: 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.Type: ApplicationFiled: May 10, 2022Publication date: November 17, 2022Applicant: MACROBLOCK, INC.Inventors: Chang-Lin Chen, Chun-Yi Li, Wei-Chung Chen
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Publication number: 20220366862Abstract: A backlight driving method includes steps of: (A) receiving a piece of image data; (B) generating a piece of adjustment data based on the image data; (C) generating, based on a plurality of predetermined delay values and on an original synchronization control (SC) signal that has a pulse, an internal SC signal that has a plurality of pulses, where respective time delays of the pulses of the internal SC signal with respect to the pulse of the original SC signal are respectively dependent on the predetermined delay values; 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 intermittently.Type: ApplicationFiled: May 10, 2022Publication date: November 17, 2022Applicant: MACROBLOCK, INC.Inventors: Chang-Lin Chen, Chun-Yi Li, Wei-Chung Chen
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Publication number: 20220361305Abstract: A driving system for driving light-emitting modules includes driving current generation modules connected respectively to the light-emitting modules, and a brightness modulation module connected to the current generation modules and the light-emitting modules. Each driving current generation module is configured to receive signals from the brightness modulation module to control a driving current that flows through the light-emitting module it is connected to. The brightness modulation module is configured to generate the signals based on voltages provided at terminals of the light-emitting modules that are connected to the driving current generation modules.Type: ApplicationFiled: April 20, 2022Publication date: November 10, 2022Applicant: MACROBLOCK, INC.Inventor: Ting-Ta Chiang
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Patent number: 11462154Abstract: A display system includes an LED array and a driving device. The driving device includes a current driver, a scan selector and a capacitor. The current driver is connected to drive lines of the LED array, and provides a plurality of driving current signals respectively to the drive lines. The scan selector is connected to scan lines of the LED array, and has a first terminal that is configured to receive an input voltage, and a second terminal. The scan selector outputs the input voltage to a selected one of the scan lines, and outputs a clamp voltage provided at the second terminal thereof to the other ones of the scan lines. The capacitor has a first terminal, and a second terminal that is connected to the second terminal of the scan selector.Type: GrantFiled: March 7, 2022Date of Patent: October 4, 2022Assignee: MACROBLOCK. INC.Inventors: Che-Wei Chang, Chen-Yuan Kuo, Chi-Min Hsieh
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Patent number: 11455930Abstract: A driving system includes a scan driving device. The scan driving device includes a configuration register, a counter, multiple comparators and a driver. The configuration register generates a counting parameter and multiple scan order parameters based on a serial input signal and a clock signal. The counter generates a counting value based on the clock signal, an enable signal and the counting parameter. Each comparator compares the counting value with a respective one of the scan order parameters to generate a comparison result. The driver generates multiple scan driving signals for driving a scan-type display based on the clock signal, on the enable signal and on the comparison results respectively generated by the comparators.Type: GrantFiled: January 20, 2022Date of Patent: September 27, 2022Assignee: MACROBLOCK, INC.Inventors: Chih-Hung Lee, Wei-Chung Chen, Wei-Hsiang Cheng
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Patent number: 11450708Abstract: 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.Type: GrantFiled: October 23, 2020Date of Patent: September 20, 2022Assignees: MACROBLOCK, INC., FORCE MOS TECHNOLOGY CO., LTD.Inventors: Kao-Way Tu, Yuan-Shun Chang, Li-Chang Yang, Yi-Sheng Lin
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Publication number: 20220293041Abstract: A display system includes an LED array and a driving device. The driving device includes a current driver, a scan selector and a capacitor. The current driver is connected to drive lines of the LED array, and provides a plurality of driving current signals respectively to the drive lines. The scan selector is connected to scan lines of the LED array, and has a first terminal that is configured to receive an input voltage, and a second terminal. The scan selector outputs the input voltage to a selected one of the scan lines, and outputs a clamp voltage provided at the second terminal thereof to the other ones of the scan lines. The capacitor has a first terminal, and a second terminal that is connected to the second terminal of the scan selector.Type: ApplicationFiled: March 7, 2022Publication date: September 15, 2022Applicant: MACROBLOCK. INC.Inventors: Che-Wei CHANG, Chen-Yuan KUO, Chi-Min HSIEH
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Patent number: 11404011Abstract: A scan-type display apparatus includes a light emitting module, a display module, a control module and a driver module. The light emitting module includes an LED array having a common anode configuration. The control module generates a synchronization control (SC) signal. The driver module generates a plurality of switching signals and an image refresh signal based on the SC signal. The switching signals cause the LED array to emit light in a line scan manner. The image refresh signal is related to one of the switching signals that corresponds to a last line of the line scan in each line scan cycle, and is further related to refreshing of images on a display constituted by the light emitting module and the display module.Type: GrantFiled: March 24, 2021Date of Patent: August 2, 2022Assignee: MACROBLOCK, INC.Inventors: Yi-Ta Wu, Chun-Yi Li, Hung-I Cheng, Ping-Kai Huang
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Publication number: 20220238596Abstract: A micro light emitting diode display device includes a light-transmissive unit, a plurality of light emitting units and a plurality of converting units. The light-transmissive unit includes a protective layer which has opposite first and second surfaces. The light emitting units are arranged in an array on the second surface of the protective layer and each of the light emitting units includes first, second and third light emitting portions. The converting units are disposed on the first surface of the protective layer in positions corresponding to the light emitting units, respectively, and each of the converting units includes a reflecting feature, and first and second wavelength converting elements.Type: ApplicationFiled: January 6, 2022Publication date: July 28, 2022Applicant: MACROBLOCK, INC.Inventors: Chen-Yuan Kuo, Chen-Chi Yang, Mei-Tan Wang, Che-Wei Chang
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Publication number: 20220238054Abstract: A driving system includes a scan driving device. The scan driving device includes a configuration register, a counter, multiple comparators and a driver. The configuration register generates a counting parameter and multiple scan order parameters based on a serial input signal and a clock signal. The counter generates a counting value based on the clock signal, an enable signal and the counting parameter. Each comparator compares the counting value with a respective one of the scan order parameters to generate a comparison result. The driver generates multiple scan driving signals for driving a scan-type display based on the clock signal, on the enable signal and on the comparison results respectively generated by the comparators.Type: ApplicationFiled: January 20, 2022Publication date: July 28, 2022Applicant: MACROBLOCK, INC.Inventors: Chih-Hung Lee, Wei-Chung Chen, Wei-Hsiang Cheng
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Patent number: 11380248Abstract: A driving method is to be implemented by a driver module, is adapted to drive a scan-type display, and includes steps of: receiving an image stream and a synchronization control (SC) signal from a control module; generating a drive output based on the SC signal, the image stream and a clock signal to drive the display such that the display emits light in a line scan manner; and generating an image refresh signal based on the SC signal and the drive output. The image refresh signal is related to refreshing of images on the display.Type: GrantFiled: March 18, 2021Date of Patent: July 5, 2022Assignee: MACROBLOCK, INC.Inventors: Yi-Ta Wu, Chun-Yi Li
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Patent number: 11355076Abstract: A scan-type display apparatus includes a light emitting module, a display module, a control module and a driver module. The light emitting module includes an LED array having a common cathode configuration. The control module generates an image stream, a plurality of switching signals that cause the LED array to emit light in a line scan manner, and an image refresh signal that is related to refreshing of images on a display constituted by the light emitting module and the display module. The driver module generates a drive output to drive the display module, such that the display shows images represented by the image stream and that the refreshing of images on the display is synchronous to the line scan.Type: GrantFiled: March 24, 2021Date of Patent: June 7, 2022Assignee: MACROBLOCK, INC.Inventors: Yi-Ta Wu, Chun-Yi Li, Hung-I Cheng, Ping-Kai Huang