JPH0635219Y2 - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- JPH0635219Y2 JPH0635219Y2 JP1986156643U JP15664386U JPH0635219Y2 JP H0635219 Y2 JPH0635219 Y2 JP H0635219Y2 JP 1986156643 U JP1986156643 U JP 1986156643U JP 15664386 U JP15664386 U JP 15664386U JP H0635219 Y2 JPH0635219 Y2 JP H0635219Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display cell
- electrode
- holder
- 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 - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 57
- 230000001154 acute effect Effects 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 38
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、液晶表示装置を構成する部品の嵌合部寸法の
製作公差によって生ずる部品組付位置誤差により液晶表
示セルとプリント基板の電極との間に大きな位置ずれを
生ずることを防止する液晶表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an electrode of a liquid crystal display cell and a printed circuit board due to a component assembly position error caused by a manufacturing tolerance of a fitting portion size of a component constituting a liquid crystal display device. The present invention relates to a liquid crystal display device that prevents a large displacement between the two.
液晶表示装置は、第６図に示すように、嵌合孔を有する
ホルダー１を枠として組立てられる。As shown in FIG. 6, the liquid crystal display device is assembled using a holder 1 having a fitting hole as a frame.
即ち、ホルダー１は略四角形の貫通孔1aと孔の中間に段
部1bを有する貫通孔1cとを有し、貫通孔1aには、ゴム材
に多数の電極を縞状に配設しプリント基板上の多数の電
極を液晶セルの多数の電極に導通する導電性圧接コネク
タ２が嵌入し、段部1bには半透過反射板３及び液晶表示
セル４が嵌入する。That is, the holder 1 has a substantially quadrangular through hole 1a and a through hole 1c having a step portion 1b in the middle of the hole. The through hole 1a has a large number of electrodes arranged in a striped pattern on a rubber material to form a printed circuit board. A conductive pressure contact connector 2 for conducting the above-mentioned many electrodes to the many electrodes of the liquid crystal cell is fitted therein, and the semi-transmissive reflection plate 3 and the liquid crystal display cell 4 are fitted in the step portion 1b.
又、液晶表示セル４の上面は液晶表示を妨げないために
設けた開口5aを有する押え板５によって覆われる（第６
図参照）。Further, the upper surface of the liquid crystal display cell 4 is covered with a holding plate 5 having an opening 5a provided so as not to interfere with liquid crystal display (sixth).
See figure).
ホルダー１の貫通孔1a及び1cの周辺にはビス挿入孔1dが
穿設され、下面には位置決めピン（図示しない）が突設
される。A screw insertion hole 1d is provided around the through holes 1a and 1c of the holder 1, and a positioning pin (not shown) is provided on the lower surface so as to project.
ホルダー１の下面に取付けられるプリント基板６には電
極6a及び導電パターンが配設され、その周囲にホルダー
１の位置決めピン（図示しない）に嵌入しホルダー１に
対してプリント基板６を位置決めするピン嵌入孔6bと組
付用のビス挿入孔6cが穿設される。An electrode 6a and a conductive pattern are provided on the printed circuit board 6 attached to the lower surface of the holder 1, and a pin fitting for positioning the printed circuit board 6 with respect to the holder 1 is fitted around the electrode 6a and a conductive pattern. A hole 6b and a screw insertion hole 6c for assembly are formed.
ビス７は、ビス挿入孔1d,6c並びに押え板５に設けられ
たビス挿入孔5bに挿入され、押え板５、ホルダー１及び
プリント基板６を一体的に結合する。このようにして組
付けられる部品にはそれぞれ寸法誤差があるため、組付
けられた部品の位置に微かな偏位を生じ、これが液晶表
示セル４とプリント基板６との間に電気的な接触不良を
生ずる要因となる問題があった。The screw 7 is inserted into the screw insertion holes 1d and 6c and the screw insertion hole 5b provided in the holding plate 5, and integrally connects the holding plate 5, the holder 1 and the printed circuit board 6. Since the components assembled in this manner have dimensional errors, a slight deviation occurs in the position of the assembled components, which causes a poor electrical contact between the liquid crystal display cell 4 and the printed circuit board 6. There is a problem that causes
即ち、液晶表示セル４の巾寸法の公差＋0.2〜−0.2mmに
対して液晶表示セル４の嵌入する段部1bの巾寸法の公差
は＋0.5〜＋0.3mmであり、従って、両者の最大隙間は0.
7mmとなり、ホルダー１に対して液晶表示セル４の位置
が巾方向に最大±0.35mm偏位することになる。That is, the tolerance of the width dimension of the liquid crystal display cell 4 is +0.5 to +0.2 mm, and the tolerance of the width dimension of the step portion 1b into which the liquid crystal display cell 4 is fitted is +0.5 to +0.3 mm. The maximum gap is 0.
It becomes 7 mm, and the position of the liquid crystal display cell 4 is displaced from the holder 1 by ± 0.35 mm at the maximum in the width direction.
又、ホルダー１とプリント基板６との相対位置誤差は上
記の位置決めピン及びピン嵌入孔6bで規制されるが、最
大で±0.25mmの誤差を生ずる。Further, the relative position error between the holder 1 and the printed circuit board 6 is regulated by the positioning pin and the pin fitting hole 6b, but an error of ± 0.25 mm at maximum occurs.
更に、プリント基板６の電極6aとピン孔6bとの間に生ず
る製作寸法公差を約0.1mmとすると、プリント基板６の
電極部6aに対する液晶表示セルの電極部の最大位置誤差
Ｅは、上記の誤差を累計すると、Ｅ＝0.35＋0.25＋0.1
＝0.7（mm）となる。Further, when the manufacturing dimensional tolerance generated between the electrode 6a of the printed circuit board 6 and the pin hole 6b is about 0.1 mm, the maximum position error E of the electrode part of the liquid crystal display cell with respect to the electrode part 6a of the printed circuit board 6 is When the error is accumulated, E = 0.35 + 0.25 + 0.1
= 0.7 (mm).
電極6aの電極パターンの幅Ｂは、液晶表示セル４の電極
4aの電極パターン幅に等しく0.75mmであり、両者の間に
Ｅ＝0.7mmの最大位置誤差を生ずると、第７図に示すよ
うに、導電性圧接コネクタ２の非導電部幅Ｆが0.1mmで
あるため、導電性圧接コネクタ２の電極2aを介して両者
が接続されない事態を生ずる可能性があり、又、第８図
に示すように、１つの電極6aに対し隣り合う２つの電極
4a,4aが同時に接続されて、誤作動を生ずる可能性もあ
る。The width B of the electrode pattern of the electrode 6a is the electrode of the liquid crystal display cell 4.
When the maximum position error of E = 0.7 mm is generated between the two, which is 0.75 mm which is equal to the electrode pattern width of 4a, the non-conductive portion width F of the conductive pressure welding connector 2 is 0.1 mm as shown in FIG. Therefore, there is a possibility that the electrodes 2a of the conductive pressure contact connector 2 are not connected to each other, and as shown in FIG. 8, two electrodes adjacent to one electrode 6a are adjacent to each other.
There is a possibility that 4a and 4a are connected at the same time and malfunction occurs.
かかる事態を避けるために、部品の製作寸法公差を小さ
くして最大位置誤差Ｅを小さくする方法が考えられる
が、部品の製作寸法公差を小さくすると、製造費の増大
或は不良品の増大を招来することとなり望ましくない。In order to avoid such a situation, a method of reducing the manufacturing dimensional tolerance of the parts to reduce the maximum position error E can be considered. However, if the manufacturing dimensional tolerance of the parts is reduced, manufacturing cost increases or defective products increase. Is not desirable.
本考案は、従来の寸法公差のままで、しかも部品の取付
位置のばらつきを減少して電極接触部の接触不良を防止
することのできる液晶表示装置を提供するものである。SUMMARY OF THE INVENTION The present invention provides a liquid crystal display device with the same dimensional tolerance as that of the prior art, and further, it is possible to prevent the contact failure of the electrode contact portion by reducing the variation of the mounting positions of the components.
本考案は、液晶表示セルと、該液晶表示セルの電極とプ
リント基板の電極とを導通させる導電性圧接コネクタ
と、上記導電性圧接コネクタを嵌入する貫通孔を有し、
一方の面に上記液晶表示セルを嵌入する段部を有し、他
方の面に上記プリント基板を組付けるホルダーとを有す
る液晶表示装置において、上記ホルダーの段部の内壁面
に、先端が削り取られ易い鋭角に形成された複数の液晶
表示セル位置決め用の突起を設けたことにある。The present invention has a liquid crystal display cell, a conductive pressure contact connector for electrically connecting an electrode of the liquid crystal display cell and an electrode of a printed circuit board, and a through hole for fitting the conductive pressure contact connector.
In a liquid crystal display device having a step portion for inserting the liquid crystal display cell on one surface and a holder for assembling the printed circuit board on the other surface, the tip is scraped off on the inner wall surface of the step portion of the holder. This is because a plurality of protrusions for positioning the liquid crystal display cells, which are formed at easy acute angles, are provided.
以上のような構成で、ホルダーの段部の内壁面に液晶表
示セル位置決め用の突起が設けられるので、ホルダーの
段部と液晶表示セルとの隙間が減少する。With the above-described structure, since the protrusion for positioning the liquid crystal display cell is provided on the inner wall surface of the step portion of the holder, the gap between the step portion of the holder and the liquid crystal display cell is reduced.
従って、液晶表示セルの組付位置のばらつきが減少し、
液晶セルの巾寸法が突起間寸法よりも大きい場合には液
晶セルの挿入圧で突起先端を削って嵌入することができ
る。Therefore, the variation in the assembly position of the liquid crystal display cell is reduced,
When the width dimension of the liquid crystal cell is larger than the inter-protrusion dimension, the protrusion tip can be shaved and fitted by the insertion pressure of the liquid crystal cell.
本考案の実施例を図面を参照して説明する。 An embodiment of the present invention will be described with reference to the drawings.
なお、従来例と同一部品には同一符号を付す。The same parts as those in the conventional example are designated by the same reference numerals.
第１図及び第２図に示すように、ホルダー１は略四角形
の貫通孔1aと中間に段部1bを有する段部1bの三方の内壁
面に、先端が削り取られ易い鋭角に形成された複数の液
晶表示セル位置決め用の突起1fが設けられる。As shown in FIG. 1 and FIG. 2, the holder 1 has a plurality of sharp-edged tips that are easily scraped off on the inner wall surface of the step portion 1b having a substantially square through hole 1a and a step portion 1b in the middle. The projection 1f for positioning the liquid crystal display cell is provided.
突起1fの形状は、第３図に示すように、例えば60度程度
の鋭角をもつものである。The shape of the protrusion 1f has an acute angle of, for example, about 60 degrees as shown in FIG.
貫通孔1aには導電性圧接コネクタ２が嵌入し、段部1bに
は半透過反射板３及び液晶表示セル４が嵌入することは
従来と同様である。The conductive pressure contact connector 2 is fitted in the through hole 1a, and the semi-transmissive reflection plate 3 and the liquid crystal display cell 4 are fitted in the step portion 1b, as in the conventional case.
又、液晶表示セル４の巾寸法A1の公差が＋0.2〜−0.2mm
であることも従来通りである（第４図参照）。Moreover, the tolerance of the width A 1 of the liquid crystal display cell 4 is +0.2 to −0.2 mm.
Is also the same as the conventional one (see FIG. 4).
これに対して、液晶表示セル４の嵌入する段部1bの巾寸
法A2及び突起間寸法A3の公差はそれぞれ＋0.5〜＋0.3mm
（従来通り）及び＋0.2〜0mmである。On the other hand, the tolerances of the width dimension A 2 and the inter-projection dimension A 3 of the stepped portion 1b into which the liquid crystal display cell 4 is fitted are +0.5 to +0.3 mm, respectively.
(As before) and + 0.2-0 mm.
従って、液晶表示セル４の巾方向のばらつきは突起1fに
よって規制され、両者の最大間隔Dmaxは、Dmax＝＋0.2
−（−0.2）＝0.4（mm）となり、ホルダー１に対する液
晶表示セル４の位置誤差はその半分の0.2mmとなり、従
来技術の0.35に比較して0.15mm減少したことになる。Therefore, the variation in the width direction of the liquid crystal display cell 4 is restricted by the protrusion 1f, and the maximum distance D max between the two is D max = + 0.2.
− (− 0.2) = 0.4 (mm), and the positional error of the liquid crystal display cell 4 with respect to the holder 1 is 0.2 mm which is half that, which is 0.15 mm smaller than 0.35 of the prior art.
従って、プリント基板６の電極部6aに対する液晶表示セ
ルの電極部の最大位置誤差Ｅも従来技術における0.7よ
り0.15減少して0.55mmとなる。Therefore, the maximum position error E of the electrode portion of the liquid crystal display cell with respect to the electrode portion 6a of the printed board 6 is 0.55 mm, which is 0.15 less than 0.7 in the prior art.
又、液晶表示セル４と突起1f間寸法との最小間隔Dmini
は、 Dmini＝０−（＋0.2）＝−0.2となり、液晶表示セル４
の外周縁が突起1fに干渉することがあるが、そのまま液
晶表示セル４を樹脂製のホルダーに挿入すると、突起1f
の先端は容易に削りとられ、突起1f間寸法A3は略液晶表
示セル４の巾寸法A1となって、液晶表示セル４はホルダ
ー１内に嵌入する（第５図参照）。Also, the minimum distance between the liquid crystal display cell 4 and the dimension between the protrusions 1f is D mini.
Becomes D mini = 0-(+ 0.2) =-0.2, and the liquid crystal display cell 4
The outer peripheral edge of the may interfere with the protrusion 1f, but if the liquid crystal display cell 4 is directly inserted into the resin holder, the protrusion 1f
The tip of the is easily shaved, the dimension A 3 between the projections 1f becomes substantially the width dimension A 1 of the liquid crystal display cell 4, and the liquid crystal display cell 4 is fitted into the holder 1 (see FIG. 5).
又、液晶表示セル４の縦方向についても同様に組付位置
誤差を減少させることができる。Also, the assembling position error can be similarly reduced in the vertical direction of the liquid crystal display cell 4.
即ち、液晶表示セル４の縦方向の隙は、ホルダー１の嵌
入孔寸法B2の公差と液晶表示セル４の縦方向寸法B1の公
差の差ではなく、突起1f先端迄の寸法B3とB1の差とな
り、巾方向と同様に液晶表示セル４の縦方向の取付位置
誤差を減少させることができる。That is, the gap in the vertical direction of the liquid crystal display cell 4 is not the difference between the tolerance of the insertion hole dimension B 2 of the holder 1 and the tolerance of the vertical dimension B 1 of the liquid crystal display cell 4, but the dimension B 3 up to the tip of the protrusion 1f. Since the difference is B 1 , the vertical position error of the liquid crystal display cell 4 can be reduced as in the width direction.
液晶表示セル４の巾方向の最大取付位置誤差Ｅが0.55以
内におさまった場合には、 Ｂ−Ｅ＝0.75−0.55＝0.2mmとなり、液晶表示セル４の
電極4aとプリント基板６の電極6aとが少くとも0.2mmラ
ップするため、導電性圧接コネクタの非電導部幅Ｆ＝0.
1mmより長くなり、電極4aと6aとが接続されない事態は
発生しないし、第８図に示すように、１つの電極6aに対
し隣り合う２つの電極4a,4aが同時に接続されて、誤作
動を生ずる可能性は無くなった。When the maximum mounting position error E in the width direction of the liquid crystal display cell 4 is within 0.55, B−E = 0.75−0.55 = 0.2 mm, and the electrode 4a of the liquid crystal display cell 4 and the electrode 6a of the printed circuit board 6 are Since it wraps at least 0.2 mm, the width F of the non-conductive part of the conductive pressure welding connector is F = 0.
It becomes longer than 1 mm, the situation where the electrodes 4a and 6a are not connected does not occur, and as shown in FIG. 8, two adjacent electrodes 4a and 4a are simultaneously connected to one electrode 6a, which causes a malfunction. There is no possibility of this happening.
本考案は、液晶表示セル及びホルダーの寸法公差を小さ
くすることなく従来どうりの公差のままで、プリント基
板の電極に対する液晶表示セルの電極の位置誤差を減少
し、電極間が非接続となる虞れを防止することができ
る。The present invention reduces the positional error of the electrodes of the liquid crystal display cell with respect to the electrodes of the printed circuit board without reducing the dimensional tolerances of the liquid crystal display cell and the holder and maintains the same tolerance as before, and the electrodes are not connected. It is possible to prevent fear.
従って、製造費を増加させることなく、不良品の発生を
防止し製品の歩留りを向上させることができる。Therefore, it is possible to prevent the occurrence of defective products and improve the product yield without increasing the manufacturing cost.
第１図〜第５図は本考案の実施例を示し、第１図はホル
ダーの斜視図、第２図は同上平面図、第３図は突起の形
状図、第４図は液晶表示セルの平面図、第５図は液晶表
示装置の要部縦断面、第６図は従来の液晶表示装置の構
成部品の斜視図、第７図及び第８図は液晶表示装置及び
プリント基板の電極の位置関係を説明するための略図で
ある。 １…ホルダー、1a,1c…貫通孔、1b…段部、1d…ビス挿
入孔、1e…位置決めピン、1f…突起、２…導電性圧接コ
ネクタ、2a…電極、３…半透過反射板、４…液晶表示セ
ル、4a…電極、５…押え板、６…プリント基板、6a…電
極、6b…ピン嵌入孔、6c…ビス挿入孔、７…ビス。1 to 5 show an embodiment of the present invention, FIG. 1 is a perspective view of a holder, FIG. 2 is a plan view of the same as above, FIG. 3 is a shape view of a protrusion, and FIG. 4 is a liquid crystal display cell. A plan view, FIG. 5 is a longitudinal cross-sectional view of a main part of the liquid crystal display device, FIG. 6 is a perspective view of components of a conventional liquid crystal display device, and FIGS. 7 and 8 are positions of electrodes of the liquid crystal display device and a printed circuit board. 6 is a schematic diagram for explaining a relationship. 1 ... Holder, 1a, 1c ... Through hole, 1b ... Step, 1d ... Screw insertion hole, 1e ... Positioning pin, 1f ... Projection, 2 ... Conductive pressure welding connector, 2a ... Electrode, 3 ... Semi-transmissive reflection plate, 4 ... Liquid crystal display cell, 4a ... Electrode, 5 ... Holding plate, 6 ... Printed circuit board, 6a ... Electrode, 6b ... Pin insertion hole, 6c ... Screw insertion hole, 7 ... Screw.
Claims (1)
プリント基板の電極とを導通させる導電性圧接コネクタ
と、上記導電性圧接コネクタを嵌入する貫通孔を有し、
一方の面に上記液晶表示セルを嵌入する段部を有し、他
方の面に上記プリント基板を組付けるホルダーとを有す
る液晶表示装置において、上記ホルダーの段部の内壁面
に、先端が削り取られ易い鋭角に形成された複数の液晶
表示セル位置決め用の突起を設けたことを特徴とする液
晶表示装置。1. A liquid crystal display cell, a conductive pressure contact connector for electrically connecting an electrode of the liquid crystal display cell and an electrode of a printed circuit board, and a through hole into which the conductive pressure contact connector is fitted.
In a liquid crystal display device having a step portion for inserting the liquid crystal display cell on one surface and a holder for assembling the printed circuit board on the other surface, the tip is scraped off on the inner wall surface of the step portion of the holder. A liquid crystal display device comprising a plurality of liquid crystal display cell positioning protrusions formed at an easy acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986156643U JPH0635219Y2 (en) | 1986-10-15 | 1986-10-15 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986156643U JPH0635219Y2 (en) | 1986-10-15 | 1986-10-15 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6362824U JPS6362824U (en) | 1988-04-26 |
| JPH0635219Y2 true JPH0635219Y2 (en) | 1994-09-14 |
Family
ID=31078451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986156643U Expired - Lifetime JPH0635219Y2 (en) | 1986-10-15 | 1986-10-15 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635219Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271894A (en) * | 2006-03-31 | 2007-10-18 | Sharp Corp | Display panel holding structure and electronic device including the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62195123U (en) * | 1986-05-30 | 1987-12-11 |
-
1986
- 1986-10-15 JP JP1986156643U patent/JPH0635219Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6362824U (en) | 1988-04-26 |
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