Direct-type energy-saving vehicle backlight module with active driving device and driving method

Abstract

The invention discloses a direct-type energy-saving vehicle-mounted backlight module with an active driving device and a driving method. The direct-type energy-saving vehicle-mounted backlight module with an active driving device includes a driving IC, a lamp board, a die-cast metal frame and an array LED , the array LED, light board and driver IC are sequentially connected in the die-cast metal frame from top to bottom, the bottom end of the driver IC is connected with an FPC cable, and the driver IC is connected to the driver motherboard through the FPC cable. In the present invention, the driver IC is arranged on the back of the direct-type lamp panel, the driver IC scheme is reasonably selected, and the client is connected to the main board through an FPC cable, so that the main board command communication can be used to control the partition display of the backlight source module, and the backlight source module is improved. The contrast of the source module, while reducing the FPC cables and sockets, simplifies the complexity of the client's driver motherboard, improves reliability, reduces the possibility of display functional defects caused by poor contact, and reduces the cost and cost of the client's driver motherboard. The development and debugging work reduces the difficulty of detection.

Description

technical field [0001] The invention relates to the technical field of vehicle backlight modules, in particular to a direct-type energy-saving vehicle backlight module with an active driving device and a driving method. Background technique [0002] At present, conventional vehicle display screens usually use direct-type backlights, which have the advantages of high contrast and color saturation, and good display fineness. The direct-type vehicle backlight module needs to be driven according to the preset partition after arrangement, so as to achieve the performance of improving the contrast ratio. The driving method of the direct-type vehicle backlight module is to connect it to the client driver motherboard through multiple cables. However, with the increase in the size of the direct-type vehicle backlight module, the number of required lamp panel light sources and the number of partitions gradually increase, resulting in more wiring, making the existing driving method wir...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention discloses a direct-type energy-saving vehicle-mounted backlight module with an active drive device. By setting a driver IC on the back of the direct-type lamp panel, a reasonable selection of the driver IC solution is made, and the client is connected through an FPC cable. Drive the main board, you can control the partition display of the backlight module through the main board command communication, improve the contrast of the back light module, reduce the FPC cable and socket, simplify the complexity of the client's driver main board, and improve the reliability , which reduces the possibility of display functional defects caused by poor contact. At the same time, the area of ​​the client driver motherboard is also reduced due to the reduction of LED drive components, which reduces the PCB cost and development and debugging work. There is a light board that drives IC1, which reduces the difficulty of detection. By setting some required display mode firmware, the detection work can be realized intuitively and quickly, and the detection efficiency and quality can be improved; it includes:

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