Mini-led backlight module, manufacturing method thereof, and display panel
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorZhuhui LI
Life of this patent
Estimating the term…
Abstract
A mini light-emitting diode (mini-LED) backlight module, a manufacturing method thereof, and a display panel are provided. A plurality of backlight partitions are defined on a flexible substrate to improve brightness uniformity. A plurality of mini-LEDs arranged in an array in each of the backlight partitions are formed into parallel modules, so that a driving voltage and current of the backlight module can be within an appropriate range. The flexible substrate is further arranged with a first metal pattern, and signals can be independently input to each of the mini-LEDs through each of first sub-metal patterns, reducing metal trace resistance of the backlight module, and further improving brightness uniformity of the backlight module.
Claims19
A mini light-emitting diode (mini-LED) backlight module, comprising a flexible substrate, and a first metal pattern and a plurality of mini-LEDs arranged on the flexible substrate, wherein the flexible substrate is provided with a plurality of backlight partitions, the first metal pattern is defined into a plurality of first sub-metal patterns, and each of the first sub-metal patterns is arranged corresponding to one of the backlight partitions;
- wherein each of the backlight partitions comprises at least one backlight sub-region, and each of the backlight sub-regions is provided with a plurality of the mini-LEDs arranged in an array;
- wherein in each of the backlight sub-regions, all of the mini LEDs positioned in a same row are connected in series to form a series branch, and multiple series branches are connected in parallel to form a parallel module;
- and
- wherein some of the parallel modules are electrically connected through the first sub-metal patterns, and an external input signal is input to each of the mini-LEDs in the backlight sub-regions through each of the first sub-metal patterns.
A method of manufacturing the mini light-emitting diode (mini-LED) backlight module, comprising following steps:
- providing a flexible substrate, defining the flexible substrate into a plurality of backlight partitions, wherein each of the backlight partitions comprises at least one backlight sub-region;
- forming a first metal pattern on the flexible substrate, wherein the first metal pattern is defined into a plurality of first sub-metal patterns, and each of the first sub-metal patterns is arranged corresponding to one of the backlight partitions;
- and,
- mounting a plurality of mini-LEDs correspondingly on the flexible substrate, wherein the mini-LEDs positioned on each of the at least one backlight sub-region are arranged in an array;
- wherein in each of the backlight sub-region, all of the mini-LEDs positioned in a same row are connected in series to form a series branch, multiple series branches are connected in parallel to form a parallel module, and a plurality of the parallel modules are electrically connected through the first sub-metal patterns.
Dependencies are inferred from the claim text.