Light-emitting diode matrix, backlight module with same and liquid crystal display device

Abstract

The invention discloses a light-emitting diode matrix, a backlight module with the light-emitting diode matrix and a liquid crystal display device. The light-emitting diode matrix is at least dividedinto a first area and a second area, and the light-emitting diode matrix at least comprises a plurality of first light-emitting diode naked cores and a plurality of second light-emitting diode naked cores, wherein the first light-emitting diode naked cores are arranged in the first area and belong to a first specification range; and the second light-emitting diode naked cores are arranged in the second area and belong to a second specification range, and the optical specifications of the first specification range and the second specification range are different. The light-emitting diode matrix, the backlight module and the liquid crystal display device greatly improve the utilization rate of the light-emitting diode naked cores on the same batch of wafers.

Description

technical field [0001] The invention relates to a light-emitting diode array, and in particular to a light-emitting diode array, a backlight module and a liquid crystal display device having the same. Background technique [0002] Most of the current backlight modules of liquid crystal displays use cold cathode tubes (CCFL) as light sources. Because cold cathode tubes have the advantages of mature development and low price, they are widely used in the market. However, cold-cathode tubes have poor color rendering, need high-voltage drive, contain mercury (Hg) which is not conducive to environmental protection, the light-emitting spectrum includes ultraviolet (UV) bands, slow start-up speed, and the tube is fragile , and difficult to control chroma and other issues. Therefore, the development of a new light source has become one of the very important topics in the development of a new generation of liquid crystal displays. [0003] In the past ten years, due to the breakthr...

AI Technical Summary

Problems solved by technology

However, in such an LED backlight module 100, once the bare LED core 104 outside the specification range is doped, it is very easy to produce bright and dark areas or uneven colors, such as figure 1 shown

However, the design of LED backlight modules with small specifications will make it difficult to reduce the cost of LED light sources, and it is not mass-producible.

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