Quantum dot film and backlight module

A quantum dot film and film technology, applied in optics, optical elements, nonlinear optics, etc., can solve the problems of low backlight utilization, excitation light loss, loss, etc., and achieve the effect of improving backlight utilization and reducing losses.

Inactive Publication Date: 2017-01-04
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the quantum dot film has the following problems: 1. When the backlight that excites the quantum dot is incident from the air to the substrate (glass or film), due to the difference in the refractive index of the interface, a part of the light is reflected and lost, resulting in a backlight. low utilization
2. When the excitation light formed by the quantum dots is excited by the backlight, when it enters the air from the uppermost material or protective layer, there is also a difference in the interface refractive index, resulting in the loss of the excitation light exit.

Method used

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Embodiment approach 1

[0026] Implementation mode one: if figure 1 As shown, a quantum dot film includes in turn: a substrate layer 1, a buffer layer 2, a quantum dot layer 3, a protective layer 4, a water and oxygen barrier layer 5, a hardening layer 6, and a first anti-reflection layer 7; An antireflection layer 7 is antireflective to white light. The buffer layer 2 is equivalent to a layer of adhesive, which is used to bond and fix the quantum dot layer 3 and the substrate layer 1 , so as to increase the peeling force between the quantum dot layer 3 and the substrate layer 1 . The protection layer 4 is formed on the quantum dot layer 3 and encapsulates the quantum dot layer 3, so that all parts of the quantum dot layer 3 can be well protected. This is because the structure of the quantum dot layer 3 is unstable, so the protective layer 4 needs to be formed immediately after film formation for pre-protection. Apparently, the protection layer 4 is formed with materials capable of protecting the s...

Embodiment approach 2

[0029] Implementation mode two: if figure 2 As shown, the quantum dot film includes a second anti-reflection layer 8, the second anti-reflection layer is disposed on the surface of the substrate layer not facing the buffer layer, and the second anti-reflection layer is anti-reflective to white light. The second anti-reflection layer is composed of six anti-reflection film layers, and the structure of the second anti-reflection layer is the same as that of the first anti-reflection layer. The light transmittance is also the same.

[0030] The present invention also provides a backlight module, the backlight module includes a quantum dot film, the quantum dot film is made by the above solution of this embodiment, and other structures of the backlight module adopt the prior art.

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Abstract

The invention discloses a quantum dot film and backlight module. The backlight module comprises the quantum dot film, wherein the quantum dot film comprises a substrate layer, a buffer layer, a quantum dot layer, a protective layer, a water oxygen barrier layer, a hardened layer and a first antireflection layer; the first antireflection layer improves permeability of white light. The first antireflection layer is arranged to reduce emergent loss of excitation light generated by the quantum dot layer.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a quantum dot film and a backlight module. Background technique [0002] After half a century of development and research, liquid crystal display (LCD) has become the dominant flat panel display technology. Since LCDs do not emit light themselves, they require a backlight. Cold Cathode Fluorescent Lamp (CCFL) used to be the most common backlight, but it can only achieve 75% NTSC color gamut, so in order to get wider color gamut, higher brightness and lower energy consumption, white light-emitting diodes ( WLED) quickly replaced the position of CCFL and became the main backlight source. However, the brightness and contrast of WLED-based backlights are still relatively low. Therefore, researchers are committed to developing newer backlight technology to improve these problems. [0003] Quantum dot film is an optical film used to replace the lower diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B1/11
CPCG02B1/115G02F1/1336G02F1/133614
Inventor 于甄孔德兴李硕彭娟陈琛程武
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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