Backlight module, preparation method thereof and display device

A technology of backlight module and light-emitting diode, which is applied in the directions of identification devices, optics, nonlinear optics, etc., can solve the problems of low production efficiency and unfavorable industrial production, and achieve the effects of material saving, cost reduction and high production efficiency

Inactive Publication Date: 2020-07-31
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing preparation methods, the optical lens is usually prepared by processes such as molding and grinding, and its production efficiency is low, which is not conducive to large-scale industrial production.

Method used

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  • Backlight module, preparation method thereof and display device
  • Backlight module, preparation method thereof and display device
  • Backlight module, preparation method thereof and display device

Examples

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simpl...

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Abstract

The invention discloses a backlight module, a preparation method thereof and a display device. The preparation method comprises the steps that a substrate is provided, and a plurality of micro light emitting diodes are formed on the substrate; ink is respectively printed onto the plurality of micro light emitting diodes through an ink-jet printing process to form an optical liquid layer; and a curing process is carried out on the optical liquid layer to form a micro lens, and the micro lens enables light emitted by the light emitting diode to converge. According to the method, the micro lens structure can be accurately formed on the micro light emitting diode through the ink-jet printing process, the production efficiency is high, raw materials are saved, and the method has high industrialization value.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a backlight module, a manufacturing method thereof, and a display device. Background technique [0002] Mini LED (Mini Light-Emitting Diode, miniature light-emitting diode) backlight technology, compared with traditional LED backlight technology, directly uses RGB three-color LED as backlight, has better color integrity and color gamut range, and Mini LED Traditional LEDs are smaller in size and can achieve more fine-grained control, making the display panel have a higher contrast. Therefore, the Mini LED backlight technology has great development potential and is expected to be applied to display panels on a large scale. [0003] The distance from the Mini LED backlight to the display screen usually depends on the pitch of the LED chips and the half-value angle of the LED light emission. Small, thereby reducing the thickness of the display. However, the LED is a La...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G09F9/00H01L25/075H01L33/58
CPCG02F1/133603G09F9/00G02F1/133607H01L25/0753H01L33/58
Inventor 向昌明
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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