Quantum rod, quantum rod film comprising same and display device

A technology for display devices and quantum rods, which is applied in the direction of instruments, luminescent materials, chemical instruments and methods, etc., can solve problems such as the inconsistency of emission peaks of blue light backlight sources, and achieve improved luminous efficiency and reliability, improved performance, and high excitation efficiency Effect

Active Publication Date: 2020-07-03
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to solve the technical problem that the excitation peak of the existing green light quantum rod does not match the emission peak of the blue light backlight, this disclosure provides a quantum rod, which includes a core, a shell and a rod-shaped protective layer

Method used

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  • Quantum rod, quantum rod film comprising same and display device
  • Quantum rod, quantum rod film comprising same and display device
  • Quantum rod, quantum rod film comprising same and display device

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Embodiment Construction

[0022] see figure 1 , The disclosure provides a quantum rod 100, which includes a core 10 composed of cadmium sulfide, a shell layer 20 composed of zinc selenide, and a rod-shaped protective layer 30 composed of zinc sulfide. The shell layer 20 covers the core 10 to form a core-shell quantum dot 25 . The rod-shaped protective layer 30 covers the core-shell quantum dots 25 . In this embodiment, the core-shell quantum dots 25 are close to one end of the rod-shaped protective layer 30 . In one embodiment, the core-shell quantum dots 25 can be located anywhere in the rod-shaped protective layer 30 .

[0023] see figure 2 , the excitation wavelength of the core 10 composed of cadmium sulfide is about 445-450nm and the excitation peak is about 450nm, which is similar to the emission wavelength 447-452nm of the blue light-emitting diodes in commonly used blue light backlights. The core 10 emits blue-green light after being excited. The shell layer 20 composed of zinc selenide r...

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Abstract

The invention discloses a quantum rod, a quantum rod film comprising the same and a display device. The quantum rod comprises a core, a shell layer and a rod-shaped protective layer. The core is composed of cadmium sulfide. And the shell layer is composed of zinc selenide and wraps the core. The rod-shaped protective layer is composed of zinc sulfide and wraps the shell layer.

Description

technical field [0001] The disclosure relates to the field of display technology, in particular to a quantum rod, a quantum rod film containing the same, and a display device. Background technique [0002] In the early days, liquid crystal displays used color filters containing red, green and blue color resists and white backlights to achieve color display. However, the absorption spectrum of the color resist is relatively broad, so the spectrum of white light after passing through the color resist is also relatively wide, resulting in a lower color gamut of the liquid crystal display. Currently, LCDs use Quantum Dot (QD) color filters and blue backlights to increase the color gamut. [0003] However, the fluorescence emitted by quantum dots is not polarized, so the brightness will drop by more than 50% after passing through the polarizer. Quantum rods (Quantum rods, QR) have anisotropic morphology, so the fluorescence emitted by them is polarized. Among the current quant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133514G02F1/133528C09K11/883C09K11/02C09K11/0811B82Y20/00B82Y40/00B82Y30/00G02B1/04G02F1/133617G02F1/133614G02F1/136222G02F2202/36G02B2207/101
Inventor 周淼
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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