Color conversion layer preparation method and display device
A color conversion and green technology, applied in semiconductor/solid-state device manufacturing, diodes, semiconductor devices, etc., can solve the problem of complex and cumbersome color conversion layer process
Pending Publication Date: 2021-05-07
HISENSE VISUAL TECH CO LTD
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Problems solved by technology
[0005] The present invention provides a method for preparing a color conversion layer and a display device, which are used to alleviate the problem of complex manufacturing process of the color conversion layer caused by the cumbersome method of manufacturing the color conversion layer by inkjet printing method and photoresist technology
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preparation example Construction
[0092] A method for preparing a color conversion layer according to an embodiment of the present invention, the method comprising:
[0093] subjecting the powder deposited on the substrate to at least one laser irradiation process to form a color conversion layer on the substrate;
[0094] Among them, the following steps are carried out in each laser irradiation process: combining figure 2 as shown,
[0095] Step S201: spread the powder on the substrate, wherein the powder is a polymer doped with quantum dots or phosphor;
[0096] Step S202: According to the preset pixel position, irradiate the powder on the substrate with laser to melt the powder at the position;
[0097] Step S203: remove the powder on the substrate that has not been irradiated by the laser.
[0098] In the above method, since the powder is a polymer doped with quantum dots or fluorescent powder, according to the preset pixel position, when the laser irradiates the polymer, the polymer will undergo a melti...
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Abstract
The invention relates to a color conversion layer preparation method and a display device, relates to the technical field of laser printing, and aims to solve the problem that a method for manufacturing a color conversion layer by adopting an ink-jet printing method and a photoresist process is relatively complicated, so that the film manufacturing difficulty is relatively high. The method comprises the steps of performing at least one laser radiation process on powder laid on a substrate to form the color conversion layer on the substrate; executing the following steps in each laser radiation process: laying the powder on the substrate, and the powder being a polymer doped with quantum dots or fluorescent powder; according to the preset positions of pixel points, adopting laser to radiate the powder laid on the substrate so as to melt the powder on the radiation positions; and removing the powder which is not radiated by the laser on the substrate. According to the embodiment of the invention, the laser is adopted to radiate the powder, so that the polymer generates a melting effect, and the powder is melted at the positions of the preset pixel points, so that the color conversion layer is formed, and the manufacturing steps of manufacturing the color conversion layer are simplified.
Description
technical field [0001] The invention relates to the technical field of laser printing, in particular to a method for preparing a color conversion layer and a display device. Background technique [0002] When making the color conversion layer, commonly used methods can be inkjet printing and photoresist technology. Among them, the inkjet printing methods mainly include wet printing and dry printing. For example, in the wet inkjet printing process, that is, the inkjet printing preparation process using the solution method, firstly, the ink mixed with quantum dots can be produced, and at the same time, a black Bank (Black-Matrix, BM ) specifies the position of the printed pixel droplets to prevent crosstalk between different pixels. Then the quantum dot ink is inkjet printed into the pixel pit of the BM, and then the ink needs to be cured by UV curing (ultraviolet curing) or heat curing. [0003] The photoresist process is mainly to firstly disperse the phosphor / quantum dot...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01L33/50H01L27/32H01L51/56
CPCH01L33/507H01L2933/0041H10K59/38H10K71/00
Inventor 岳春波乔明胜李浩李富琳
Owner HISENSE VISUAL TECH CO LTD