Reflective liquid crystal display panel, its manufacturing method and display device

Abstract

A reflective liquid crystal display panel is provided, comprising: a first substrate and a second substrate oppositely arranged, a first polarizer arranged outside the first substrate, a second polarizer arranged outside the second substrate, and filling the first The liquid crystal between the substrate and the second substrate, the light guide plate with light guide dots arranged on the first polarizer, and the side-type backlight, also include a third layer laminated on the side of the light guide plate opposite to the first polarizer A polarizer, a composite layer with a liquid crystal and a dichroic dye mixture, and a third substrate; the polarization direction of the third polarizer is the same as that of the first polarizer; the light absorption axis of the third polarizer is the same as that of the composite layer when displaying a black state The absorption axis is orthogonal. In the present invention, a polarizer and a dichroic dye compound layer are added above the light guide plate, and the light absorption axis of the polarizer above the light guide plate is perpendicular to the light absorption axis of the dichroic dye compound layer in the display black state, eliminating the light on the surface of the light guide plate. escape, greatly improving the contrast of reflective LCD panels.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a reflective liquid crystal display panel, a preparation method thereof and a display device. Background technique [0002] Reflective display devices rely on reflecting ambient light to provide a display light source, and the brightness is too low in places with weak ambient light, which limits the scope of use of this type of product. Increasing the front light source can improve the user performance of RLCD in the dark state, improve the grade of the product, increase the added value of the product, and significantly improve the side effect of the product. Taking e-books as an example, the price of a product with a front light source is generally twice that of a product without a front light source. At present, there are few reflective LCD products with front light in major exhibitions at home and abroad, and the main bottleneck is the low contrast. [0003] figure 1 Shown...

AI Technical Summary

Problems solved by technology

For the escaping light, in the non-reflective LCD panel, a reflective sheet will be added on the side of the light guide plate to reflect the escaped light back to the light guide plate, but in the reflective LCD panel, the way of adding a reflective sheet is obviously not the same. applicable, resulting in low contrast in traditional reflective devices

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