JPS60260902A - Polarizing plate for liquid crystal display element - Google Patents
Polarizing plate for liquid crystal display elementInfo
- Publication number
- JPS60260902A JPS60260902A JP59116368A JP11636884A JPS60260902A JP S60260902 A JPS60260902 A JP S60260902A JP 59116368 A JP59116368 A JP 59116368A JP 11636884 A JP11636884 A JP 11636884A JP S60260902 A JPS60260902 A JP S60260902A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- crystal display
- liquid crystal
- plate
- polarizing plate
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は液晶表示素子用偏光板に係わり、特にツィステ
ッド・ネマチック型（以下ＴＮ型と称する）液晶表示素
子に使われる半透過型偏光板に関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a polarizing plate for a liquid crystal display element, and particularly to a transflective polarizing plate used in a twisted nematic type (hereinafter referred to as TN type) liquid crystal display element. It is.
第１図は、ＴＮ型液晶表示素子を使った従来のｇ、、１
！１表示装置の一例を示す要部断面構成図参幸看である
。同図において、液晶表示素子ｔは、対向面にそれぞれ
透過性のセグメント電極２．コモン電極３を形成した２
枚の透光性１１極基板４，５を対向させてその周辺部を
シール材６で貼り合わせ、側基板４．’５１ＭＪにねじ
れ構造を有するＴＮ型液晶７が封入されて構成されてい
る。Figure 1 shows a conventional g,,1, using a TN type liquid crystal display element.
! 1 is a cross-sectional configuration diagram of main parts showing an example of a display device. In the figure, the liquid crystal display element t has transparent segment electrodes 2 and 2 on opposing surfaces, respectively. 2 forming common electrode 3
A pair of transparent 11-pole substrates 4 and 5 are placed facing each other, and their peripheral parts are bonded together using a sealing material 6. A TN type liquid crystal 7 having a twisted structure is sealed in a '51MJ.
また、この液晶表示素子！の外面、つまり両電極基板４
．５上には透光性粘着剤８を介して上板偏光板９．下板
偏光板１０が偏光軸を互いに直交あるいは平行させてそ
れぞれ接着配置され、さらに下板偏光板ｌＯ上には透光
性粘着剤８ゲ介して半透過型反射板１１が接着されてい
る。Also, this liquid crystal display element! , that is, both electrode substrates 4
．． 5, an upper polarizing plate 9 is placed on top of the transparent adhesive 8. Lower polarizing plates 10 are adhesively arranged with their polarization axes perpendicular or parallel to each other, and a semi-transmissive reflective plate 11 is further adhered onto the lower polarizing plate 10 via a translucent adhesive 8.
このような液晶表示装置においては、昼間ある型
いは外光照明が十分な場合は、半透Ｉ反射板１！は反射
板として働き、夜間あるいは外光照明が不十分な場合は
光源１２に点灯し、半透過型反射板１１は光透過板とし
て働く。In such a liquid crystal display device, during the daytime or when there is sufficient external lighting, the semi-transparent I reflection plate 1! acts as a reflector, and at night or when external illumination is insufficient, the light source 12 is turned on, and the transflective plate 11 acts as a light transmitting plate.
液晶表示素子ｌに下板偏光板！０および半透過型反射板
１１を貼り付けるにあたっては、実際は第２図に示す如
く、偏光フィルムｌｏａの上側に粘着剤８を介して離型
紙１３が接着され、偏光フィルムＩＯａの下側には粘着
剤８を介して半透過型反射板１１が接着されて半透過型
偏光板Ｉ４として完成し友ものを用意しておき、これを
液晶表示素子Ｉに貼り付ける際に、離型紙１３に剥して
粘着剤８を介して第１図に示す如く液晶表示素子１の下
側電極基板５に貼シ付ける。Lower polarizing plate on the liquid crystal display element! 0 and the transflective reflector 11, as shown in FIG. The transflective plate 11 is adhered via the agent 8 to complete the transflective polarizing plate I4.A companion plate is prepared, and when it is to be pasted on the liquid crystal display element I, it is peeled off onto the release paper 13. It is pasted onto the lower electrode substrate 5 of the liquid crystal display element 1 via an adhesive 8 as shown in FIG.
ここで半透過型反射板１１については、光に対する透過
特性及び反射特性の両特性が要求されるため、その材料
としては発泡ポリプロピレンやメツシュ入クボリエステ
ルフイルムが使われている。Since the semi-transmissive reflector 11 is required to have both light transmission and reflection properties, foamed polypropylene or mesh-containing polyester film is used as the material.
しかしながら、これらの材料には、取扱い中に傷つき易
い、汚れ易い、指紋が付き易い等の欠点があり液晶表示
装置の量産上大きな問題となっていた。However, these materials have drawbacks such as being easily damaged during handling, easily smudged, and easily left with fingerprints, which has caused major problems in the mass production of liquid crystal display devices.
本発明の目的は、半透過型偏光板の取扱い中に傷、汚れ
等が生じないようにし光学特性の損われない優れた半透
過型偏光板を提供することにある。An object of the present invention is to provide an excellent transflective polarizing plate that is free from scratches, stains, etc. during handling and whose optical properties are not impaired.
本発明は、上記目的を達成する次めに、偏光フィルムと
半透過型反射板とを粘着剤全弁して積層してがる液晶表
示素子用半透過型偏光板において、半透過型反射板の偏
光フィルムと接着される側でない面に粘着剤を介して保
護フィルムを接着配設したことを特徴とする。In order to achieve the above object, the present invention provides a semi-transmissive polarizing plate for a liquid crystal display element in which a polarizing film and a semi-transmissive reflective plate are laminated with an adhesive. It is characterized in that a protective film is adhesively disposed on the side other than the side to be adhered to the film via an adhesive.
次に図面を用いて本発明の冥施例會詳細に説明する。 Next, an example of the present invention will be explained in detail with reference to the drawings.
第３図は本発明による液晶表示装置用半透過型偏光板の
一実施例を説明する几めの要部拡大断面図である。なお
、第１，２図におけると同じまたは相補部材には同一符
号を付し、その説明會省略する。同図において、偏光フ
ィルム１０ａの上側には粘着剤８を介して離型紙Ｉ３が
接着され、偏光フィルム１０Ｈの下側には粘着剤８を介
して半透過型反射板１１が接着され、さらにこの半透過
型反射板１１の下側には粘着剤８ａを介して保護フィル
ム１５が接着されている。ここで粘着剤８ａは上記粘着
剤８に比してその粘着性を幾分弱くシ。FIG. 3 is an enlarged sectional view of a main part of an embodiment of a transflective polarizing plate for a liquid crystal display device according to the present invention. Note that the same or complementary members as in FIGS. 1 and 2 are given the same reference numerals, and their explanation will be omitted. In the same figure, a release paper I3 is adhered to the upper side of the polarizing film 10a via an adhesive 8, and a semi-transparent reflective plate 11 is attached to the lower side of the polarizing film 10H via an adhesive 8. A protective film 15 is adhered to the lower side of the transflective plate 11 via an adhesive 8a. Here, the adhesive 8a has a somewhat weaker adhesiveness than the adhesive 8 described above.
ておくとその後の取扱い上便利である。保護フイ ゛・
ルム１５の材質としてはポリエチレン等が好適である。This will be convenient for later handling. Protection film
A suitable material for the lumen 15 is polyethylene or the like.
このように構成された本発明による半透過型偏光板１６
を液晶表示素子ｌに貼り付けて液晶表示装置を製造する
に当っては、先ず離型紙１３のみを剥して、液晶表示素
子１の下側電極基板５に貼り付ける。その貼り付は工程
中は、検層フイ汚したりしてその九字特性七損うことを
防止することが出来る。保護フィルムＩ５は光源１２の
前に装着固定する直前に剥せばよい。保護フィルム１５
が除かれて露出した半透過型反射板１１の面には、その
後伺も接着することはないので、粘着剤ｓａｈ単に保護
フィルム１５を保持するだけの弱い粘着力で十分であり
、その方が粘着剤が残存して半透過型反射板１１の光学
特性を損う危険性も少ない。Transflective polarizing plate 16 according to the present invention configured as described above
When manufacturing a liquid crystal display device by pasting the film onto the liquid crystal display element 1, first, only the release paper 13 is peeled off and the film is pasted onto the lower electrode substrate 5 of the liquid crystal display element 1. During the process, its pasting can prevent the well logging from being contaminated and damaging its characteristics. The protective film I5 may be peeled off immediately before being mounted and fixed in front of the light source 12. Protective film 15
Since the exposed surface of the semi-transmissive reflector 11 is not bonded to the surface of the semi-transmissive reflector 11 after it has been removed, a weak adhesive force that merely holds the protective film 15 is sufficient; There is also less risk of the adhesive remaining and damaging the optical properties of the transflective plate 11.
第４図は、本発明による半透過型偏光板の他の一実施例
における保護フィルム１５ｇの平面図である。同図にお
いて矢印は偏光フィルム１０ａの偏光軸あるいは吸収軸
方向を示すものであり、この矢印方向に偏光フィルムの
吸収軸あるいは偏光軸を一致させて偏光フィルムｌｅａ
と保護フィルム１５８′ｔ−積層している。このように
半透過型偏光板の吸収軸あるいは偏光軸方向が明示され
ていると、偏光板の切断加工時、貼り付は時等において
作業ミスが防止できる。FIG. 4 is a plan view of a protective film 15g in another embodiment of the semi-transmissive polarizing plate according to the present invention. In the same figure, the arrow indicates the direction of the polarization axis or absorption axis of the polarizing film 10a.
and a protective film 158't- are laminated. If the direction of the absorption axis or the polarization axis of the semi-transmissive polarizing plate is clearly indicated in this way, it is possible to prevent operational errors when cutting, pasting, etc. the polarizing plate.
を介して保護フィルムを配設してなるので、取扱い作業
中に傷、汚れが発生せず光学特性が損われない液晶表示
素子用半透過型偏光板が得られゐ。Since a protective film is provided through the transmissive polarizing plate, a transflective polarizing plate for liquid crystal display elements that does not get scratched or dirty during handling and whose optical properties are not impaired can be obtained.
第１図は東轟シ示装置１を説明するための液晶表示装置
の断面図、第２図は従来の半透過型偏光板の断面図、第
３図は本発明による半透過型反射板ト・・・液晶表示素
子、５・・・・透光性電極基板、８゜８８・、・、粘着
剤、１０．１０ｇ・・・・偏光フィルム、１ト・・・半
透過型反射板、１２・・・・光源、１３・・・・離型紙
、１４．１６・・・・半透過型偏光板、１５，１５３・
・・保護フィルム。
代理人 弁理士 高 橋 明 夫
第２図FIG. 1 is a sectional view of a liquid crystal display device for explaining Togo's display device 1, FIG. 2 is a sectional view of a conventional semi-transmissive polarizing plate, and FIG. 3 is a sectional view of a semi-transmissive reflective plate according to the present invention. ...Liquid crystal display element, 5...Transparent electrode substrate, 8°88..., Adhesive, 10.10g...Polarizing film, 1 ton...Semi-transparent reflector, 12 ...Light source, 13...Release paper, 14.16...Semi-transparent polarizing plate, 15,153.
··Protective film. Agent Patent Attorney Akio Takahashi Figure 2
Claims (1)
してなる液晶表示素子用偏光板において、半透過型反射
板の偏光フィルムに面していない側には弱粘着剤を介し
て保護フィルムが張り付けられていることを特徴とする
液晶表示素子用偏光板。In a polarizing plate for liquid crystal display elements, which is made by laminating a polarizing film and a semi-transmissive reflector via an adhesive, the side of the semi-transmissive reflector that does not face the polarizing film is protected via a weak adhesive. A polarizing plate for liquid crystal display elements, characterized by having a film attached thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59116368A JPS60260902A (en) | 1984-06-08 | 1984-06-08 | Polarizing plate for liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59116368A JPS60260902A (en) | 1984-06-08 | 1984-06-08 | Polarizing plate for liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60260902A true JPS60260902A (en) | 1985-12-24 |
Family
ID=14685238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59116368A Pending JPS60260902A (en) | 1984-06-08 | 1984-06-08 | Polarizing plate for liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60260902A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105903U (en) * | 1987-12-29 | 1989-07-17 | ||
| US5905393A (en) * | 1997-10-06 | 1999-05-18 | Motorola, Inc. | Unbuffered latch resistant to back-writing and method of operation therefor |
| KR100310164B1 (en) * | 1995-11-27 | 2001-12-28 | 구광시 | Polarizing film and preparation method thereof |
| KR100618468B1 (en) * | 1999-08-02 | 2006-08-31 | 주식회사 새 한 | Producing method of polarized light plate of light reflection and transmission type |
| US8182924B2 (en) * | 2005-06-03 | 2012-05-22 | 3M Innovative Properties Company | Optical body having polyacrylate skin layer |
-
1984
- 1984-06-08 JP JP59116368A patent/JPS60260902A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105903U (en) * | 1987-12-29 | 1989-07-17 | ||
| KR100310164B1 (en) * | 1995-11-27 | 2001-12-28 | 구광시 | Polarizing film and preparation method thereof |
| US5905393A (en) * | 1997-10-06 | 1999-05-18 | Motorola, Inc. | Unbuffered latch resistant to back-writing and method of operation therefor |
| KR100618468B1 (en) * | 1999-08-02 | 2006-08-31 | 주식회사 새 한 | Producing method of polarized light plate of light reflection and transmission type |
| US8182924B2 (en) * | 2005-06-03 | 2012-05-22 | 3M Innovative Properties Company | Optical body having polyacrylate skin layer |
| US8409720B2 (en) | 2005-06-03 | 2013-04-02 | 3M Innovative Properties Company | Optical body having polyacrylate skin layer |
| US9851481B2 (en) | 2005-06-03 | 2017-12-26 | 3M Innovative Properties Company | Method of making optical body having polyacrylate skin layer |
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