Quantum dot display device and manufacturing method thereof

Abstract

The invention provides a quantum dot display device and a manufacturing method thereof. According to the quantum dot display device, a colorful filter layer has exquisite quantum dot patterns, and therefore the display device has the higher resolution, color saturation and color gamut, and is reasonable in structure, so that the manufacturing technology of the quantum dot display device is simple. According to the manufacturing method of the quantum dot display device, by means of existing coating, exposure, development and other processes of an existing color filter, the exquisite quantum dot patterns are obtained by manufacturing red and green quantum dot resin compositions containing surface modification, and then the quantum dot display device with the high resolution, color saturation and color gamut is obtained. According to the method, the raw material preparation and manufacturing technology is simple, few materials are consumed, the production cost is low, and the quantum dot display device is applicable to mass production.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a quantum dot display device and a manufacturing method thereof. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen, etc., occupy a dominant position in the field of flat panel display. [0003] The working principle of the liquid crystal display is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilmTransistorArraySubstrate, TFTArraySubstrate) and the color filter substrate (ColorFilterSubstrate, CFSubstrate), and apply a driving voltage on the two substrates to control the rotation direction of the liquid crystal molecules , to refract the light from the backlight module to generate a...

AI Technical Summary

Problems solved by technology

[0005] When making quantum dot patterns in existing quantum dot display devices, the quantum dot materials are usually first mixed with red, green, and blue color photoresist correspondingly, then exposed and developed to form a pattern containing quantum dots, and then continue to make The lower polarizing layer and the alignment layer are used to obtain a color filter substrate, and finally the color filter substrate and the array substrate are paired into a box to make a quantum dot display device. However, this method needs to separate the red, green, and blue quantum dots in advance Mixing with red, green, and blue color photoresist, the process is cumbersome, and it is also very difficult to disperse quantum dots evenly in the color photoresist

In addition to the above methods, quantum dot patterns can also be produced by transfer printing, screen printing and other methods, but these methods have serious waste of materials, poor process repeatability, and the prepared quantum dot patterns are poor in fineness, and it is difficult to obtain large size, high-resolution display

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