Reflective liquid crystal display device including dye liquid crystal composition

Abstract

The invention discloses a reflective liquid crystal display device including a dye liquid crystal composition. The reflective liquid crystal display device sequentially comprises an upper substrate, an upper conducting layer, an upper orientation layer, a dye liquid crystal composition layer, a lower orientation layer, a lower conducting layer, a lower substrate and a reflecting layer from top tobottom, the reflective liquid crystal display device does not contain a polaroid, the dye liquid crystal composition layer contains a liquid crystal composition, a chiral agent and a dichroic dye, theclearing point of the liquid crystal composition is not lower than 100 DEG C, and K33 / K22 is larger than 2. The reflective liquid crystal display device including the dye liquid crystal composition provided by the invention has the advantages of high contrast ratio, high reliability, wide operating temperature range, wide viewing angle, good low-temperature stability, wide application range, no phase dislocation under intermediate-state voltage and the like; meanwhile, the defects that a traditional reflective display device needs to use a polarizer, a brightness enhancement film, a phase retarder and the like, the cost is increased, and the visual angle characteristic is poor are overcome.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, and in particular relates to a reflective liquid crystal display device containing a dye liquid crystal composition. Background technique [0002] In the early 1970s, with the invention of Liquid Crystal Display (LCD), information display technology started a revolution. Because LCDs are lightweight, low-power flat-panel displays that provide visual readouts that meet the small size, light weight, and battery requirements of hand-held electronic devices, this display technology enables new classes of hand-held and other portable devices. Products appear in large numbers. Commercially, LCDs are widely used first as digital readouts on watches, then in instruments, and later in hand-held computers, personal data assistants, and many other digital devices that require relatively low power consumption , however, the common back-illuminated liquid crystal display in the past cannot meet the nee...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the shortcomings of increased cost and poor viewing angle characteristics caused by the use of polarizers, brightness enhancement films, phase retarders, etc. in reflective display devices in the prior art, the purpose of the present invention is to provide a reflective display device containing dye liquid crystal composition Liquid crystal display device, which has the advantages of high contrast, high reliability, wide operating temperature range, wide viewing angle, good low temperature stability, wide application range, no phase error under intermediate state voltage, etc.

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