公开(公告)号：US20220293041A1

公开(公告)日：2022-09-15

申请号：US17653734

申请日：2022-03-07

Applicant: MACROBLOCK. INC.

Inventor： Che-Wei CHANG ,  Chen-Yuan KUO ,  Chi-Min HSIEH

IPC: G09G3/32

Abstract: 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.

公开(公告)号：US11355076B2

公开(公告)日：2022-06-07

申请号：US17211474

申请日：2021-03-24

Applicant: MACROBLOCK, INC.

Inventor： Yi-Ta Wu ,  Chun-Yi Li ,  Hung-I Cheng ,  Ping-Kai Huang

IPC: G09G3/34 ,  G09G3/36

Abstract: 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.

公开(公告)号：US20210304692A1

公开(公告)日：2021-09-30

申请号：US17211474

申请日：2021-03-24

Applicant: MACROBLOCK, INC.

Inventor： Yi-Ta Wu ,  Chun-Yi Li ,  Hung-I Cheng ,  Ping-Kai Huang

IPC: G09G3/34

Abstract: 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.

公开(公告)号：US20210304690A1

公开(公告)日：2021-09-30

申请号：US17211419

申请日：2021-03-24

Applicant: MACROBLOCK, INC.

Inventor： Yi-Ta Wu ,  Chun-Yi Li ,  Hung-I Cheng ,  Ping-Kai Huang

IPC: G09G3/34

Abstract: 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.

公开(公告)号：US20210304668A1

公开(公告)日：2021-09-30

申请号：US17211467

申请日：2021-03-24

Applicant: MACROBLOCK, INC.

Inventor： Yi-Ta Wu ,  Chun-Yi Li ,  Hung-I Cheng ,  Ping-Kai Huang

IPC: G09G3/32 ,  G09G3/34

Abstract: 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 an image stream, a plurality of switching signals that cause the LED array to emit light in aline 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.

公开(公告)号：US20210304665A1

公开(公告)日：2021-09-30

申请号：US17205897

申请日：2021-03-18

Applicant: MACROBLOCK, INC.

Inventor： Yi-Ta Wu ,  Chun-Yi Li

IPC: G09G3/32

Abstract: 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.

公开(公告)号：US11076463B1

公开(公告)日：2021-07-27

申请号：US17248718

申请日：2021-02-04

Applicant: MACROBLOCK, INC.

Inventor： Ting-Ta Chiang ,  Wen-Ger Wong

IPC: H05B45/10 ,  H05B45/32

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.

公开(公告)号：US20200312233A1

公开(公告)日：2020-10-01

申请号：US16822715

申请日：2020-03-18

Applicant: MACROBLOCK, INC.

Inventor： Hung-Lin Yen ,  Shun-Ching Hsieh

IPC: G09G3/32 ,  G09G3/20

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.

公开(公告)号：US20190139464A1

公开(公告)日：2019-05-09

申请号：US16181507

申请日：2018-11-06

Applicant: MACROBLOCK, INC.

Inventor： Ping-Kai Huang

IPC: G09F9/33 ,  H01L25/075

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.

公开(公告)号：US10117304B2

公开(公告)日：2018-10-30

申请号：US15925901

申请日：2018-03-20

Applicant: MACROBLOCK, INC.

Inventor： Ping-Kai Huang ,  Chung-Ta Tsai

IPC: H05B37/02 ,  H05B33/08

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.