Smectic A-phase liquid crystal temperature indicating label and forming method thereof

A liquid crystal and smectic technology, applied in optics, instruments, nonlinear optics, etc., can solve the problems of product failure, inability to achieve protection and indication, etc., and achieve clear indication effect

Active Publication Date: 2019-11-12
JIANGSU JICUI INTELLIGENT LCD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the human body is no longer in contact with the color-changing liquid crystal label, the color-changing liquid crystal label returns to its original state, and whether the product fails due to high temperature during circulation and transportation or other links cannot be monitored, because the process of temperature-sensitive discoloration is reversible. Products that experience temperatures outside the shelf life temperature range will cause the product to fail or be damaged, and cannot achieve real effective protection and indication

Method used

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  • Smectic A-phase liquid crystal temperature indicating label and forming method thereof
  • Smectic A-phase liquid crystal temperature indicating label and forming method thereof
  • Smectic A-phase liquid crystal temperature indicating label and forming method thereof

Examples

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no. 1 example

[0043] Fig. 1 (a) is a schematic structural diagram of the smectic A-phase liquid crystal temperature indicating label in a specific embodiment of the present invention in a transparent state, and Fig. 1 (b) is a smectic A-phase liquid crystal temperature indicating label in a specific embodiment of the present invention. Schematic diagram of the structure of the scattering state. As shown in FIG. 1(a), the smectic A-phase liquid crystal temperature indicating label of this embodiment includes: an upper substrate 10, a lower substrate 20, and a display layer 30 sandwiched between the upper substrate 10 and the lower substrate 20; The upper substrate 10 is roughly parallel to the lower substrate 20, the upper substrate 10 has a first transparent electrode 40 on a side close to the display layer 30, and the lower substrate 20 has a second transparent electrode 50 on a side close to the display layer 30; the display layer 30 includes a smectic Phase A liquid crystal, prepolymer. ...

no. 2 example

[0058] figure 2 It is a schematic structural diagram of the smectic A-phase liquid crystal temperature indicating label in the second embodiment of the present invention in a transparent state. The similarities between this embodiment and the first embodiment will not be described in detail, and the differences between this embodiment and the first embodiment The advantage is that: in this embodiment, both the upper substrate 10 and the lower substrate 20 are transparent substrates, and this embodiment also includes that the side of the lower substrate 20 facing away from the display layer 30 is coated with the pigment layer 70 . The pigment layer 70 can be set as a whole layer of black or other colors, and can also be fonts, signs, two-dimensional codes or other patterns drawn in a single color or multiple colors.

[0059] In this embodiment, a certain voltage is applied between the first transparent electrode 40 and the second transparent electrode 50, for example, the range...

no. 3 example

[0062] image 3 It is a schematic structural diagram of the smectic A-phase liquid crystal temperature indicating label in the third embodiment of the present invention in a transparent state. The similarities between this embodiment and the first embodiment will not be repeated, and the differences between this embodiment and the first embodiment In this embodiment, both the upper substrate 10 and the lower substrate 20 are transparent substrates, and this embodiment also includes a pattern layer 60 located on the side of the lower substrate 20 close to the display layer 30. In this embodiment, it also includes a pattern layer 60 located on the lower substrate 20 The pattern layer 60 between the substrate 20 and the second transparent electrode 50 . Preferably, the pattern layer 60 is text, graphics, color or a combination thereof. In this embodiment, a certain voltage is applied between the first transparent electrode 40 and the second transparent electrode 50, for example,...

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Abstract

The invention discloses a smectic A-phase liquid crystal temperature indicating label and a forming method thereof. The smectic A-phase liquid crystal temperature indicating label comprises an upper substrate, a lower substrate and a display layer clamped between the upper substrate and the lower substrate. A first transparent electrode is arranged on one side, close to the display layer, of the upper substrate. A second transparent electrode is arranged on one side, close to the display layer, of the lower substrate. The display layer comprises smectic A-phase liquid crystal and a prepolymer.The smectic A-phase liquid crystal temperature indicating label and the forming method thereof have the advantages of being environmentally friendly, clear in indicating effect, easy to produce and convenient to use.

Description

technical field [0001] The invention relates to the technical field of liquid crystal applications, in particular to a smectic A-phase liquid crystal temperature indicating label and a forming method thereof. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to the quality and safety of food and medicine, especially the issue of shelf life. However, the production date and shelf life instructions on the outer packaging of perishable products such as food and medicine are not intuitive. Commercially available time and temperature indicating labels are of the chemical reagent indicating type. During use, the diffusion liquid is brought into contact with the diffusion strip through mechanical pressure, and the diffusion time is calculated according to the diffusion speed of the diffusion liquid on the diffusion strip, and then the shelf life of the product is indicated. This kind of extruded label is easy to cau...

Claims

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Application Information

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IPC IPC(8): G09F3/02G02F1/1333
CPCG02F1/1333G02F1/133305G09F3/02
Inventor 崔淑贞薛九枝安然
Owner JIANGSU JICUI INTELLIGENT LCD TECH CO LTD
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