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Backlight module and display device

A technology of backlight module and light, which is applied in the direction of light guide, optics, optical components, etc., to achieve the effect of improving the problem of starry sky, uniform display brightness, and improving user experience

Pending Publication Date: 2019-01-25
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a backlight module and a display device, which are used to solve the technical problem of starry sky phenomenon in the prior art

Method used

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  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

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Embodiment Construction

[0057] The technical solutions of the present invention will be described in detail below through the accompanying drawings and specific examples. It should be understood that the embodiments of the present invention and the specific features in the examples are detailed descriptions of the technical solutions of the present invention, rather than limitations to the technical solutions of the present invention. In the case of no conflict, the embodiments of the present invention and the technical features in the embodiments may be combined with each other. It should be noted that the thickness and shape of each layer of the film in the drawings do not reflect the actual scale, and the purpose is only to illustrate the content of the present invention. And the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout.

[0058] It should be understood that in the description of the embodiments of the pre...

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Abstract

The invention provides a backlight module and a display device and is intended to solve the technical problem that starry sky effect occurs in the prior art. The backlight module comprises a substrate, a plurality of Mini-LED chips arrayed on the substrate, and a transflective film arranged on one side of the light outgoing direction of the Mini-LED chips, wherein the transflective film includes afirst area positioned above every Mini-LED chip and a second area outside the first area; the first area at least covers a positive projection of each Mini-LED chip on the transflective film; the quantity of light received by the first area and sent by each Mini-LED chip is greater than the quantity of light sent by each Mini-LED chip and received by the second area; transmittance of the first area is less than that of the second area; reflectivity of the first area is greater than that of the second area.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Ultra-fine-pitch (mini) light-emitting diode (Light Emitting Diode, LED) display screen refers to a display screen with 0.2-0.9 mm pixel particles. Through Mini-LED technology, it can realize direct-lit backlight local dimming (Local Dimming) equipment, reaching The high dynamic range (HDR) screen effect makes the display image more delicate and the user experience is better. [0003] figure 1 It is a structural schematic diagram of a backlight module currently using Mini-LED technology, in which the Mini-LED chip 120 is located on the wiring substrate 110 after the wiring is completed, and then the phosphor is fixed on the wiring substrate 110 and the Mini-LED by spraying or film pressure. Above the chip 120, a fluorescent film layer is formed, and the Mini-LED chip 120 is controlled by the lines on the wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133603G02F1/133606G02B6/0036G02B6/0073G02F1/133607
Inventor 谢天旭
Owner XIAMEN TIANMA MICRO ELECTRONICS