Abstract: The present disclosure provides a quantum dot particle aggregate and a preparation method therefor, a preparation method for a light conversion device, and quantum dot particles. The preparation method for the quantum dot particle aggregate includes: mixing a plurality of first polymer particles, a first quantum dot solution and a second polymer solution, and drying to obtain an aggregate containing a plurality of quantum dot particles A, where each of the quantum dot particles A includes a core of a first polymer particle and a shell of a second polymer formed by the second polymer, a plurality of first quantum dots are positioned in the shell of the second polymer, and the first polymer particle has a minimum dimension greater than or equal to 0.3 mm. The process reduces the damage to quantum dots and can prolong the life time of application products of quantum dots.

Abstract: Disclosed are a light conversion device and a preparation method thereof, and a display device having the light conversion device. The preparation method includes the step of performing photolithography process n times on the substrate layer sequentially, wherein a patterned quantum dot structure and a cured photoresist layer are obtained by means of this step.

Abstract: This present disclosure provides a manufacturing process of light emitting device and a light emitting device. The manufacturing process of light emitting device includes: step S1, making a quantum dot film; step S2, providing a LED unit, the LED unit including at least one LED chip; step S3, disposing a first transparent adhesive layer on an exposed surface of each LED chip; step S4, disposing the quantum dot film on the surface of the first transparent adhesive layer far away from the LED chip.

Abstract: Disclosed are an organic barrier film, a preparation method of the organic barrier film, and a quantum dot device. The organic barrier film includes a substrate layer, an adhesive layer, and an oxygen barrier layer that are sequentially stacked. The oxygen barrier layer includes polyvinyl alcohol, and chemical cross-linking is formed between the adhesive layer and the oxygen barrier layer.

Abstract: The present invention relates to a tubular-shaped optical conversion element suitable for use in a light-emitting device. The element includes a light source and at least one wavelength conversion layer containing materials such as phosphors or quantum dots in a silicone matrix. The element also contains thermally conductive additives dispersed in the silicone matrix that improve thermal conduction within the wavelength conversion layer. The tubular element can be manufactured by economical methods and in various shapes. The present invention is also related to a LED lighting device that includes a LED light source within a tubular-shaped shell. A curable silicone fluid can be used to fill the space between the LEDs and the tubular shell and provide efficient light coupling between the LED and the shell.