A kind of reflective display and its manufacturing method

Abstract

The invention discloses a reflective display, which comprises a first substrate, a second substrate and a cholesteric liquid crystal layer sandwiched between the first substrate and the second substrate; the first substrate is provided with a first conductive layer and a light absorption layer; The second substrate is provided with a color filter layer, and the color filter layer includes a plurality of first quantum color layers, a plurality of second quantum color layers and a plurality of light holes; ambient light enters the interior of the reflective display through the light holes; when cholesterol When the liquid crystal layer is in a flat state, it can reflect light of a specific wavelength. The first quantum chromatic layer and the second quantum chromatic layer respectively absorb and convert the light reflected by the cholesteric liquid crystal layer into light of different wavelengths and emit it, and the light reflected by the cholesteric liquid crystal layer The light is emitted through the light-transmitting hole to realize color display; when the cholesteric liquid crystal layer is in the focal conic state, the light incident into the reflective display is scattered by the cholesteric liquid crystal layer and absorbed by the light-absorbing layer, displaying a black state; The invention also discloses a manufacturing method of the reflective display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a reflective display and a manufacturing method thereof. Background technique [0002] Among the current reflective displays, the cholesteric liquid crystal display (Ch-LCD) has the best colorization, which can improve brightness and light utilization without polarizers and color filters. [0003] Cholesteric liquid crystals have bistable states, including a planar texture that can reflect ambient light, and a focal-conic texture that can scatter ambient light, such as figure 1 As shown, the electric field can be used to switch between different states. After the switching is completed, the electric field can be canceled to maintain a stable state. [0004] There are two ways to colorize cholesteric liquid crystal displays: one is the three-layer stacked structure proposed by Kent Display of the United States or Fujitsu of Japan (such as figure 2 shown); the second is the sin...

AI Technical Summary

Problems solved by technology

[0005] Since the three-layer stacked structure is composed of red, green, and blue three-layer cholesteric liquid crystal reflective layers, it leads to complex drive design, high thickness, difficult to bend, and slow response time; while the single-layer colorization structure process is too cumbersome and requires The cholesteric liquid crystals that can reflect red, green and blue are injected into the pixel unit respectively, and the production efficiency is low

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