JPS6328795B2 - - Google Patents
Info
- Publication number
- JPS6328795B2 JPS6328795B2 JP55101966A JP10196680A JPS6328795B2 JP S6328795 B2 JPS6328795 B2 JP S6328795B2 JP 55101966 A JP55101966 A JP 55101966A JP 10196680 A JP10196680 A JP 10196680A JP S6328795 B2 JPS6328795 B2 JP S6328795B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- heating element
- printing
- display
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 43
- 238000007639 printing Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 13
- 239000002470 thermal conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000006870 function Effects 0.000 description 6
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- 239000004990 Smectic liquid crystal Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol group Chemical group [C@@H]1(CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)[C@H](C)CCCC(C)C HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- FEIWNULTQYHCDN-UHFFFAOYSA-N mbba Chemical compound C1=CC(CCCC)=CC=C1N=CC1=CC=C(OC)C=C1 FEIWNULTQYHCDN-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- DBOAVDSSZWDGTH-UHFFFAOYSA-N n-(4-butylphenyl)-1-(4-ethoxyphenyl)methanimine Chemical compound C1=CC(CCCC)=CC=C1N=CC1=CC=C(OCC)C=C1 DBOAVDSSZWDGTH-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Printers Characterized By Their Purpose (AREA)
- Electronic Switches (AREA)
- Liquid Crystal (AREA)
Description
【発明の詳細な説明】
本発明は液晶表示及び印刷機能を有する液晶印
写装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid crystal printing device having liquid crystal display and printing functions.
液晶パネルを使用した装置は、受光型の表示装
置として現在、ハンデイタイプの電卓、デイジタ
ル時計を初めとして計測機用、コンピユータ端末
表示用、自動車ダツシユボードまできわめて広範
囲にその用途は拡がつている。一方このような用
途の中には、表示機能と同時に、表示された内容
をプリントアウトする印写機能も同時に必要とす
るものも多い。通常は、このような機器には、表
示装置とプリンターを別々に装備する。例えば、
電卓表示や、キヤツシユレジスターなどがその例
である。 Devices using liquid crystal panels as light-receiving display devices are currently being used in a wide range of applications, from handheld calculators and digital watches to measuring instruments, computer terminal displays, and automobile dash boards. On the other hand, many of these uses require not only a display function but also a printing function for printing out the displayed content. Typically, such devices are equipped with separate display devices and printers. for example,
Examples include calculator displays and cash registers.
しかるに、同じ内容を表示して印刷するのに、
表示装置と印刷装置とを別々に設けることは装置
が大型化し、また取り扱い上も不便である。 However, when displaying and printing the same content,
Providing a display device and a printing device separately increases the size of the device and is also inconvenient to handle.
本発明の目的はかかる欠点を除去し、一つの液
晶パネルにより、表示と印刷の双方を行なえるよ
うにし、装置の小型化を可能とし、取り扱い上も
便利にする点にある。 An object of the present invention is to eliminate such drawbacks, to enable both display and printing to be performed using one liquid crystal panel, to enable miniaturization of the device, and to make it convenient to handle.
かかる点に鑑み、本発明の印写装置は、熱光学
的効果を有する液晶を一対の基板間に封入し、前
記基板の少なくとも一方の基板の前記液晶に接し
た第一の平面上に前記液晶に温度変化を与え液晶
表示を行なう第一の発熱体を形成し、前記一方の
基板の前記第一の平面の裏面にある第二の平面上
には前記第二の平面上に感熱記録媒体が接するこ
とにより前記感熱記録媒体上に印刷を行なう第二
の発熱体を形成し、前記第一の発熱体と前記第二
の発熱体とを前記一方の基板に設けた熱伝導体を
介して接続した液晶パネルにより液晶表示及び前
記液晶表示に対応した印刷を行なうことを特徴と
する。 In view of this, the printing device of the present invention includes a liquid crystal having a thermo-optical effect sealed between a pair of substrates, and a liquid crystal that is placed on a first plane of at least one of the substrates that is in contact with the liquid crystal. A first heating element is formed to give a temperature change to a liquid crystal display, and a thermosensitive recording medium is disposed on a second plane on the back side of the first plane of the one substrate. forming a second heating element that prints on the thermal recording medium by contacting the substrate, and connecting the first heating element and the second heating element via a thermal conductor provided on the one substrate; The present invention is characterized in that a liquid crystal panel is used to perform liquid crystal display and printing corresponding to the liquid crystal display.
以下にまず液晶の熱光学的効果を利用したデイ
スプレイについて簡単に説明する。 Below, we will first briefly explain displays that utilize the thermo-optical effect of liquid crystals.
液晶の熱光学効果では、熱変化に対して液晶層
の光透明度変化が起る。従つて表示外観としては
誘電異方性が負の液晶を用いたいわゆるDSM現
象と似ている。このようなタイプの液晶は一般に
は、スメチツク液晶やネマチツク液晶とコレステ
リツク液晶又は光学活性物質を添加した組成物が
用いられる。 In the thermo-optical effect of liquid crystals, the optical transparency of the liquid crystal layer changes in response to thermal changes. Therefore, the display appearance is similar to the so-called DSM phenomenon using a liquid crystal with negative dielectric anisotropy. As this type of liquid crystal, a composition containing a smectic liquid crystal, a nematic liquid crystal and a cholesteric liquid crystal or an optically active substance is generally used.
第１図は熱光学効果を用いた表示の原理を示し
たものである。 FIG. 1 shows the principle of display using the thermo-optic effect.
ａは透明な基板１，２の周囲をシール剤８で封
止した空間に熱光学効果を有する液晶３が充填さ
れている。最初の状態では、入射光７に対して液
晶層６は規則配向しているので透明である。とこ
ろが、基板２の一部に形成された発熱部分４に外
部電源６からスイツチ５をオンにすると、液晶層
の一部１０が加熱され等方性液体になる。その状
態でスイツチ５をオフにし、急冷すると、液晶層
部分１０は初期の規則配向をとらずランダム配向
のままであり外観的には白濁状態１２となる。 3A, a space sealed around transparent substrates 1 and 2 with a sealant 8 is filled with liquid crystal 3 having a thermo-optical effect. In the initial state, the liquid crystal layer 6 is regularly aligned with respect to the incident light 7 and is therefore transparent. However, when a switch 5 is turned on from an external power source 6 to a heat generating portion 4 formed on a portion of the substrate 2, a portion 10 of the liquid crystal layer is heated and becomes an isotropic liquid. In this state, when the switch 5 is turned off and the liquid crystal layer is rapidly cooled, the liquid crystal layer portion 10 does not maintain its initial regular orientation, but remains randomly oriented, resulting in a cloudy appearance 12.
この部分的に白濁状態を初期の透明な規則配向
にもどすためには液晶層を介して対向する基板面
上に形成された図示しない表示消去用電極を介し
てパネル全体に1KHz以下の高周波電界を印加す
るか、等方性液体相まで加熱した後徐冷すればよ
い。 In order to return this partially cloudy state to the initial transparent regular alignment, a high frequency electric field of 1KHz or less is applied to the entire panel via a display erasing electrode (not shown) formed on the substrate surface facing the liquid crystal layer. It may be applied or heated to an isotropic liquid phase and then slowly cooled.
このような熱光学効果を利用した表示用の液晶
パネルに対し、本発明では、基本的には発熱部分
を感熱印写にも利用して表示機能と同時に印刷機
能を持たせた液晶印写装置を提供するものであ
る。 In contrast to liquid crystal panels for display that utilize such thermo-optic effects, the present invention basically provides a liquid crystal printing device that has a printing function as well as a display function by using the heat generating part for thermal printing as well. It provides:
第２図ａ，ｂは本発明の一実施例を示したもの
である。第２図ａに示すように少なくとも一方が
透明な基板２１，２３と、その周辺部をシール剤
２２で形成した空間に、前記熱光学効果を有する
液晶２４を封入する。ここで、一方の電極には、
その内面と外面に金属等でつくられた熱伝導体２
６を通して、２５，２７の発熱体を形成してお
く。内面の発熱体２５は液晶層の加熱用に、外面
の発熱体２７は、感熱紙２８の印写用に用いられ
る。ここで基板２３より必要なリーダ端子を外部
にとり出し、電源３１、スイツチ３０へ接続す
る。２９は感熱紙と発熱体を必要に応じて密接さ
せるための押え治具である。 FIGS. 2a and 2b show an embodiment of the present invention. As shown in FIG. 2a, a liquid crystal 24 having the thermo-optic effect is sealed in a space formed by substrates 21 and 23, at least one of which is transparent, and a sealant 22 around the substrates. Here, one electrode has
Thermal conductor 2 made of metal etc. on its inner and outer surfaces
6 to form heating elements 25 and 27. The heating element 25 on the inner surface is used for heating the liquid crystal layer, and the heating element 27 on the outer surface is used for printing on thermal paper 28. Here, necessary reader terminals are taken out from the board 23 and connected to the power supply 31 and switch 30. Reference numeral 29 is a holding jig for bringing the thermal paper and the heating element into close contact with each other as necessary.
第２図ｂは、スイツチがオンされた時に状態を
示したものである。発熱体２５の温度上昇により
２５に接している液晶部分は、等方性の液体とな
る。同時に、感熱紙等の感熱記録媒体２８は押え
治具２９がスイツチ３０と連動して基板２３と密
接し印写効果を著しく高める。この液晶層への書
込みおよび、感熱紙への印写に要する時間は数ｍ
ｓ〜数十ｍｓである。必要な書込み、印写が終了
したら、スイツチをオフにすると液晶層は第１図
ｃと同様に白濁したメモリー状態の表示となる。
同時に感熱紙と発熱体は押え治具２９が離れ印写
も終了する。 FIG. 2b shows the situation when the switch is turned on. As the temperature of the heating element 25 increases, the liquid crystal portion in contact with the heating element 25 becomes an isotropic liquid. At the same time, the presser jig 29 works with the switch 30 to bring the thermal recording medium 28 such as thermal paper into close contact with the substrate 23, thereby significantly enhancing the printing effect. The time required to write on this liquid crystal layer and print on thermal paper is several meters.
s to several tens of ms. When the necessary writing and printing are completed, the switch is turned off, and the liquid crystal layer displays a cloudy memory state as shown in FIG. 1c.
At the same time, the pressing jig 29 is released from the thermal paper and the heating element, and printing is completed.
なお、熱光学効果を有する液晶材料の例として
は以下のようなものがある。 Note that the following are examples of liquid crystal materials having a thermo-optic effect.
スメチツク液晶：Ｐ−シアノオクチルビフエニー
ル
ネマチツク液晶：MBBAとEBBAのミクスチヤ
ー
光学活性物質：コレステリルナノエート
また、発熱体としては、RuO2、SiO2、Ta2N
などがある。Smectic liquid crystal: P-cyanooctyl biphenyl nematic liquid crystal: Mixture of MBBA and EBBA Optically active substance: Cholesteryl nanoate In addition, as a heating element, RuO 2 , SiO 2 , Ta 2 N
and so on.
以上本発明の骨子を簡単な実施例と動作原理に
ついて説明したが、本発明の網羅する範囲は、こ
の実施例に限定されるものではない。本発明の特
徴は、熱光学効果を有する液晶のデイスプレイ効
果と、感熱特性を有する被印写体とを併用するこ
とにより簡単に両機能を持たせることができたこ
とにある。 Although the gist of the present invention has been explained above using simple embodiments and operating principles, the scope covered by the present invention is not limited to these embodiments. A feature of the present invention is that it is possible to easily provide both functions by using both the display effect of a liquid crystal having a thermo-optic effect and the printing object having heat-sensitive characteristics.
本発明の応用は、すでに液晶表示装置を装備し
ている機器類にはもちろん、さらに高密度表示、
例えば、コンピユータの端末デイスプレイを初め
とするキヤラクターデイスプレイにも有効に使え
るものである。 The present invention can be applied not only to equipment that is already equipped with a liquid crystal display device, but also to devices that are already equipped with a liquid crystal display device.
For example, it can be effectively used for character displays such as computer terminal displays.
以上述べた本発明の液晶印写装置によれば、一
つの液晶パネルにより表示と印刷の双方を行なう
ことができ、装置の小型化ができ、取り扱い上も
便利である。 According to the liquid crystal printing device of the present invention described above, both display and printing can be performed using one liquid crystal panel, and the device can be downsized and convenient to handle.
第１図ａ，ｂ，ｃは、本発明に係わる液晶印写
装置の熱光学効果の原理の説明図。第２図ａ，ｂ
は、本発明の液晶印写装置の一実施例を示した
図。
FIGS. 1a, 1b, and 1c are explanatory views of the principle of the thermo-optic effect of the liquid crystal printing device according to the present invention. Figure 2 a, b
FIG. 1 is a diagram showing an embodiment of a liquid crystal printing device of the present invention.
Claims (1)
封入し、前記基板の少なくとも一方の基板の前記
液晶に接した第一の平面上に前記液晶に温度変化
を与え液晶表示を行なう第一の発熱体を形成し、
前記一方の基板の前記第一の平面の裏面にある第
二の平面上には前記第二の平面上に感熱記録媒体
が接することにより前記感熱記録媒体上に印刷を
行なう第二の発熱体を形成し、前記第一の発熱体
と前記第二の発熱体とを前記一方の基板に設けた
熱伝導体を介して接続した液晶パネルにより液晶
表示及び前記液晶表示に対応した印刷を行なうこ
とを特徴とする液晶印写装置。1. A first method in which a liquid crystal having a thermo-optic effect is sealed between a pair of substrates, and a temperature change is applied to the liquid crystal on a first plane in contact with the liquid crystal of at least one of the substrates to perform a liquid crystal display. forming a heating element;
A second heating element is provided on a second plane on the back side of the first plane of the one substrate, and the heat-sensitive recording medium contacts the second plane to print on the heat-sensitive recording medium. the first heating element and the second heating element are connected via a thermal conductor provided on the one substrate to perform a liquid crystal display and printing corresponding to the liquid crystal display. Characteristic LCD printing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10196680A JPS5727239A (en) | 1980-07-25 | 1980-07-25 | Liquid crystal display having printer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10196680A JPS5727239A (en) | 1980-07-25 | 1980-07-25 | Liquid crystal display having printer function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5727239A JPS5727239A (en) | 1982-02-13 |
| JPS6328795B2 true JPS6328795B2 (en) | 1988-06-09 |
Family
ID=14314604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10196680A Granted JPS5727239A (en) | 1980-07-25 | 1980-07-25 | Liquid crystal display having printer function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5727239A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5057631A (en) * | 1973-09-20 | 1975-05-20 |
-
1980
- 1980-07-25 JP JP10196680A patent/JPS5727239A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5057631A (en) * | 1973-09-20 | 1975-05-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5727239A (en) | 1982-02-13 |
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