Five companies including BOE and Mingyang Circuit received the latest patents, involving Micro LED, etc.

Recently, Mingyang Circuit, BOE, Xingyu Co., Ltd., Jingfeng Mingyuan, and Paulite have successively obtained the latest LED patents, covering Micro LED, automotive lighting, LED display, LED lighting, etc.

Mingyang Circuit obtains Micro LED patent to improve chip stability

In December, there were new developments in Mingyang Circuit’s multiple Micro LED invention patents. Among them, the invention patent "a micro-LED chip and its integration method" has been authorized. The authorization announcement number is CN116895726B, and the authorization announcement date is December 22, 2023.

This patent can improve the manufacturing accuracy and efficiency of Micro LED chips and improve the product stability of Micro LED chips. The specific patent content is as follows.

The invention discloses an integration method for Micro LED chips, which includes the following steps: forming a soldering pad on the auxiliary film through laser 3D molding; forming a circuit pattern connected to the soldering pad on the soldering pad; removing the auxiliary film, double-sided immersion gold is applied to the soldering pad; and connecting the circuit pattern to the Micro LED chip through the soldering pad.

The present invention provides a Micro LED chip and its integration method, which uses an auxiliary film and a laser 3D forming method to form a bonding pad, and then forms a circuit pattern on the bonding pad, and uses the bonding pad to form the connection between the chip and the circuit pattern.

Image source: State Intellectual Property Office

In addition, Mingyang Circuit also announced the invention patent "a micro-LED core board and its preparation method", and the invention patent "a micro-LED chip packaging method" has entered the substantive examination stage.

Data show that Mingyang Circuit’s main business is the research and development, production and sales of printed circuit boards (PCBs). In 2020, it invested and established a semiconductor subsidiary, Mingyang Xinrui, which is mainly engaged in Mini LED, Micro LED and other packaging substrates and semiconductor lead frames.

BOE obtains LED display patent to solve panel wiring problem

Recently, BOE A (000725) has obtained a new invention patent authorization. The patent is called "Touch module and its driving method, LED display screen". The patent application number is CN202010982422.9, and the authorization date is December 19, 2023.

The invention provides a touch module, a driving method thereof, and an LED display screen, which belongs to the field of display technology. It can at least partially solve the problem that existing touch modules occupy more space due to factors such as more wiring when used in display panels with relatively high touch accuracy or in relatively large-sized display panels. The specific contents are as follows.

A touch module of the present invention includes: a plurality of first electrodes and a plurality of second electrodes; a plurality of integrated circuit units, the integrated circuit units corresponding to the first electrodes are arranged at intervals along the first direction, and the integrated circuit units corresponding to the second electrodes are arranged at intervals along the second direction, each of the The first input end of the integrated circuit unit is signal-connected to the corresponding first electrode or the second electrode; a control unit, the output end of the control unit is connected to the control end of all the integrated circuit units through a control line, and the input end of the control unit is signal-connected to the output end of all the integrated circuit units.

Xingyu Co., Ltd. has obtained a patent for the car lighting system, which can replace the matrix chip function

Recently, Xingyu Co., Ltd. has obtained a new utility model patent authorization. The patent is called "Car lighting system that realizes LED dynamic control based on time management strategy". The patent application number is CN202321842773.5, and the authorization date is December 22, 2023.

This utility model realizes LED dynamic control of car lighting system based on time management strategy, replacing the matrix The chip function solves the current shortage problem of LED matrix control chips. The specific patent content is as follows.

The utility model relates to the field of vehicle light control technology, and in particular to a vehicle light system that realizes LED dynamic control based on a time management strategy. It includes: a power input module, an LDO module, a single-chip microcomputer module, a switching power supply circuit, an AD conversion circuit, a signal detection circuit, a clock generator circuit, a shift register circuit, a MOS tube module, and an LED light source module; the power input module supplies the LDO module and the switch The switching power supply circuit supplies power. The switching power supply circuit realizes constant current control of the LED light source module. The AD conversion circuit and signal detection circuit detect the functional signal input by the car light, collect the signal through the microcontroller module, and control the switching power supply circuit, clock generator circuit and shift register circuit based on the signal. The MOS tube module is controlled through the output of the shift register circuit, and the MOS tube module controls the LED light source module.

Jingfeng Mingyuan obtains LED driver patent to reduce the number of PCB traces

Recently, Jingfeng Mingyuan obtained a utility model patent authorization. The patent is called "Multi-segment linear LED drive control circuit, drive power supply and lighting system". The patent application number is CN202321772932.9, and the authorization date is December 22, 2023.

This utility model patent can significantly reduce the number of PCB traces. The specific patent content is as follows.

Patent abstract: The utility model provides a multi-segment linear LED drive control circuit, drive power supply and lighting system. The input end of the multi-segment linear LED drive control circuit is connected to the bus, which includes at least 3 segments of LED light string drive control sub-circuits, at least 1 main constant current controller and a total constant current controller. The input end of each segment of the LED light string drive control sub-circuit is coupled to the bus bar, and the output ends are coupled to each other;

Each LED light string drive control sub-circuit includes an LED light string and a branch constant current controller; LEDs close to the input end of the multi-segment linear LED drive control circuit The cathode of the light string is coupled through the diode and the anode of the adjacent LED light string; the main constant current controller is coupled between the bus bar and the anode of the corresponding LED light string, and the total constant current controller is coupled between the output end of one section and the cathode of the corresponding LED light string.

Paulite obtained the patent for LED light dimming technology, making brightness and color adjustment more natural and comfortable

On December 25, the State Intellectual Property Office announced that Guangdong Baolaite Medical Technology Co., Ltd. had obtained a project called "an LED lamp dimming system and dimming method", with the authorization announcement number CN109379804B, and the application date was October 2018.

This patent uses a low-cost, simple structure to optimize the adjustment process of LED lamp brightness and color. The process is natural, the change process is gentle, and the phenomenon of low-frequency flickering is avoided. It improves the stability and anti-interference of the driving signal and ensures that the LED lamp brightness and color adjustment process can be completed smoothly. The specific content of the patent is as follows.

The patent abstract shows that the present invention discloses an LED lamp dimming system and a dimming method, including a dimming module, a constant current drive module and an LED lamp display module connected in sequence. The dimming module includes an exponential dimming engine, a linear dimmer, a multiplier, and a ΣΔ modulator; The dimming module converts the input intensity level and dimming value into a brightness value digital signal, and converts the brightness value digital signal into a PDM signal. The dimming module outputs the PDM signal to drive the constant current drive module to output a corresponding current, thereby driving the LED light display module to work.