JPH02165188A - Display element - Google Patents
Display elementInfo
- Publication number
- JPH02165188A JPH02165188A JP32158188A JP32158188A JPH02165188A JP H02165188 A JPH02165188 A JP H02165188A JP 32158188 A JP32158188 A JP 32158188A JP 32158188 A JP32158188 A JP 32158188A JP H02165188 A JPH02165188 A JP H02165188A
- Authority
- JP
- Japan
- Prior art keywords
- emitting element
- light emitting
- filter
- front panel
- light
- 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
- 239000011347 resin Substances 0.000 claims abstract description 40
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000008646 thermal stress Effects 0.000 abstract description 5
- 239000004925 Acrylic resin Substances 0.000 description 9
- 229920000178 Acrylic resin Polymers 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000007788 roughening Methods 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、たとえば屋外での大型表示装置の表示画面
を形成する表示素子に関するもので、特にフィルタ付レ
ンズを装着するカラー表示素子に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a display element that forms a display screen of a large display device used outdoors, for example, and particularly relates to a color display element equipped with a lens with a filter. be.
蛍光体の発光を利用した単色表示管を一画素とにスペー
スができて解像度の向上が困難であるとともに高解像化
にともなってコスト高を招（ことがあうた。Monochromatic display tubes that utilize the light emitted by phosphors require space between each pixel, making it difficult to improve resolution, and higher resolutions also lead to higher costs.
そこで、従来、例えば特開昭６２−１０８４９号公報に
示された複合型の光源用表示管が提案された。Therefore, a composite light source display tube has been proposed, for example, as disclosed in Japanese Patent Application Laid-Open No. 62-10849.
第３図および第４図はこの複合型の光源用表示管の基本
構造を示す正面図およびそのｒＶ−４線断面図であり、
Ｒ（赤色） Ｇ（緑色）およびＢ（青色）の蛍死体の
それぞれを１画素とする蛍光面を画素数にして３×３画
素のマトリクス状に配板（３＞および筒状側板（４）に
より気密封止されたガラ５荊２
ス管体としての真空外囲器であり、上記全面パネル（２
）の内面には、三色蛍光体Ｒ，Ｇ、Ｂの各々を単位画素
としてマトリクス状に塗布配列し、３×３Ｎ素の蛍光面
（５Ｒ）、 （５Ｇ）および（５Ｂ）からなる蛍光表示
部（５）が形成されている。3 and 4 are a front view and a sectional view taken along the line rV-4 of this composite light source display tube, respectively.
R (red), G (green), and B (blue) firefly corpses are arranged in a matrix of 3 x 3 pixels (3> and cylindrical side plate (4)) with fluorescent screens each having one pixel. It is a vacuum envelope as a glass tube body hermetically sealed by a glass tube.
), each of the three-color phosphors R, G, and B is coated and arranged in a matrix as a unit pixel to create a fluorescent display consisting of 3×3N fluorescent screens (5R), (5G), and (5B). A portion (5) is formed.
したがって、上記各蛍光面（５Ｒ）、 （５Ｇ）および
（５Ｂ）と対応してマトリクス状に配列されたグリッド
電極群（６）と背面電極群（７）とを選択的に駆動制御
（ダイナミック駆動）することにより、この画電極の交
差する蛍光面（ＳＲ）、 （５Ｇ）および（５Ｂ）のみ
を選択的に発光させることができる。Therefore, the grid electrode group (6) and the back electrode group (7) arranged in a matrix corresponding to each of the phosphor screens (5R), (5G) and (5B) are selectively driven and controlled (dynamically driven). ), it is possible to selectively emit light only from the fluorescent screens (SR), (5G) and (5B) where the picture electrodes intersect.
上記のように、真空外囲器（１）を構成する）２（面パ
ネル（２）の内面に三色の蛍光体からなる蛍光面（５Ｒ
） 。As mentioned above, the phosphor screen (5R
).
（５Ｇ）および（５Ｂ）を３×３画素のマトリクス状に
配列し、これら各蛍光面（５Ｒ）、 （５Ｇ）、 （５
Ｂ）に対応させてカソード電極群（８）とグリッド電極
群（６）および背面電極群（７）を設けることにより、
高輝度発光の光源用表示管を得ることができる。(5G) and (5B) are arranged in a matrix of 3 x 3 pixels, and each of these fluorescent screens (5R), (5G), (5
By providing a cathode electrode group (8), a grid electrode group (6), and a back electrode group (7) in correspondence with B),
A display tube for a light source that emits high-intensity light can be obtained.
したがって、この光源用表示管を１セルとして大画面カ
ラーデイスプレィ装置を組み立てる場合、画素が１つの
単色管を用いるものに比べて、各画素間のスペースがせ
まくなり、解像度を向上させることができるとともに、
部品点数および製造工数を減少させることができる。ま
た、構造を簡単にし、かつ、低コストにできるのみでな
く、表示装置の重量も低減させることができる。Therefore, when assembling a large-screen color display device using this light source display tube as one cell, the space between each pixel is narrower and the resolution can be improved compared to when a monochromatic tube with one pixel is used. With,
The number of parts and manufacturing man-hours can be reduced. Moreover, not only can the structure be simplified and cost reduced, but also the weight of the display device can be reduced.
従来の光源用表示管は以上のように構成されているので
、蛍光面に対する外光（例えば太陽光等）の影響を受け
てコントラストが低下することがある。Since the conventional light source display tube is configured as described above, the contrast may be reduced due to the influence of external light (for example, sunlight) on the phosphor screen.
そこで、第５図に示すように、前面パネルの表面に蛍光
面に対応して該蛍光面が発する色の光のみを透過するフ
ィルタ（９Ｒ）、 （９Ｇ）、 （９Ｂ）を設け、外光
の影響を低減してコントラストの向上を図っている。し
かし、蛍光面から発する光もフィルタをｉ３遇するため
に低下し、発光輝度が下がるおそれがあった。Therefore, as shown in Fig. 5, filters (9R), (9G), and (9B) are provided on the surface of the front panel corresponding to the phosphor screen to transmit only the light of the color emitted by the phosphor screen. The aim is to improve contrast by reducing the effects of However, the light emitted from the phosphor screen also decreases due to the filter, and there is a risk that the luminance of the emitted light will decrease.
そこで出願人は、発光輝度が下がるのを避けるため前面
に光を集光する集光レンズを設けた表示素子を特願昭６
３−６５８７９号において提案した。Therefore, in order to avoid a drop in luminance, the applicant filed a patent application for a display element equipped with a condensing lens that condenses light on the front surface.
It was proposed in No. 3-65879.
第６図は、係る集光レンズを備えた表示素子の従来例を
示す断面図である。FIG. 6 is a sectional view showing a conventional example of a display element equipped with such a condensing lens.
図において、ａ〔は発光素子、ａυはこの発光素子Ｑｌ
から発する光を集光するためのレンズ、（９）は外部か
らの光を遮断するためのフィルタ、Ｏ２はレンズα０と
フィルタ（９）を装着した発光素子Ｍとを接合する透明
な接着剤である。In the figure, a[ is a light emitting element, aυ is this light emitting element Ql
(9) is a filter to block light from the outside, and O2 is a transparent adhesive that joins the lens α0 and the light emitting element M equipped with the filter (9). be.
以上のように、フィルタ（９）の前面に集光レンズα０
を設け、フィルタ（９）を透過した蛍光面からの光を上
記集光レンズａυで集光←ケージて出射させるように構
成したので、表示輝度を高めるとともに、高コントラス
トの画像表示ができる。As described above, the condenser lens α0 is placed in front of the filter (9).
is provided, and the light from the phosphor screen that has passed through the filter (9) is condensed and caged by the condenser lens aυ and emitted, so that display brightness can be increased and images with high contrast can be displayed.
ここで界面反射並びに雨水やホコリの進入を防ぐために
、集光レンズαυと接着剤−、接着剤側とフィルタ（９
）、フィルタ（９）と発光素子ＯＩは、それぞれ十分に
密着しなければならない。Here, in order to prevent interface reflections and intrusion of rainwater and dust, the condensing lens αυ and the adhesive, and the adhesive side and the filter (9
), the filter (9) and the light emitting element OI must be in close contact with each other.
たとえば第６図に示されたような従来の表示素子では、
使用時の温度変化により、熱膨張係数の差によって生じ
る集光レンズのそり発生に基ずきフィルタ（９）と発光
素子顛および集光レンズ０υと透明接着剤＠との間に剥
離が生じやすい、また、接合時の荷重により集光レンズ
０υが弾性変形したまま接着剤（財）が固化された場合
、集光レンズＧＯと接着剤０乃の間に応力が発生し＃Ｊ
ｊｉ１発生の原因になる。For example, in a conventional display element as shown in FIG.
Due to temperature changes during use, peeling tends to occur between the filter (9) and the light emitting element frame, as well as between the condensing lens 0υ and the transparent adhesive@, due to warping of the condensing lens caused by the difference in thermal expansion coefficients. In addition, if the adhesive hardens while the condensing lens 0υ remains elastically deformed due to the load during bonding, stress will occur between the condensing lens GO and the adhesive 0.
It causes ji1 occurrence.
さらに、集光レンズ００面と、発光素子１１１面とを平
行に接合することは困難であった。Furthermore, it was difficult to join the condenser lens 00 surface and the light emitting element 111 surface in parallel.
このように剥離が生じると、剥離面での光の反射による
「度の低下が生じるだけでなく、斜方向から見た場合剥
離面が全反射して色が見えなくなり、集光レンズ０υに
傾きが生じると、光学特性の低下をもたらすなどという
問題点があった。When peeling occurs in this way, not only does the power decrease due to the reflection of light on the peeled surface, but when viewed from an oblique direction, the peeled surface completely reflects, making it impossible to see the color, and the condenser lens tilts to 0υ. When this happens, there is a problem in that optical properties deteriorate.
この発明は、かかる問題点を解決するためになされたも
のであり、表示素子に熱応力やその他の外力が加わった
時でも、レンズとフィルタと発光素子の間での剥離を防
止することができ、しかも接合時のレンズの傾きが生じ
ない表示素子構造を提供することを目的としている。This invention was made to solve this problem, and can prevent peeling between the lens, filter, and light emitting element even when thermal stress or other external force is applied to the display element. Moreover, it is an object of the present invention to provide a display element structure in which the lens does not tilt during bonding.
この発明に係る表示素子においては、赤、緑。 In the display element according to the present invention, red and green.
青の光を選択的に発し前面パネルより各々照射する発光
素子と、前面パネルと少なくとも３個以上の突起を介し
て所定の間隔で隔てられるとともに発光素子と相対向す
る面が粗面化され発光素子よりの光を集光する集光レン
ズと、この集光レンズの粗面化した面に塗布硬化され集
光レンズと同等な屈折率を有する樹脂層と、この樹脂層
上に塗布硬化され対応する発光素子が発する光を透過し
外光を遮断するよう配設されたフィルタシこのフィルタ
と樹脂層と前面パネルとにより形成される隙間に接着性
のブライマーを介して充填された軟質で透明な樹脂より
なる緩衝層とを備えたものである。A light-emitting element that selectively emits blue light and irradiates it from the front panel, and a light-emitting element that is separated from the front panel by a predetermined interval through at least three protrusions and whose surface facing the light-emitting element is roughened and emits light. A condensing lens that condenses light from the element, a resin layer that is coated and hardened on the roughened surface of this condensing lens and has a refractive index equivalent to that of the condensing lens, and a resin layer that is coated and hardened on this resin layer. A soft, transparent resin that is filled in the gap formed by the filter, the resin layer, and the front panel through an adhesive brimer. It is equipped with a buffer layer consisting of.
この発明における集光レンズ裏面の少なくとも３個以上
の突起は、集光レンズと前面パネルのｒｕ１隔を均一に
する。At least three or more protrusions on the back surface of the condenser lens in this invention make the ru1 distance between the condenser lens and the front panel uniform.
また、集光レンズ裏面の粗面化された微細な凸凹は、集
光レンズ裏面の接着面積を大きくし、かつ、アンカー効
果を発揮する。Further, the roughened fine irregularities on the back surface of the condenser lens increase the adhesion area on the back surface of the condenser lens and exhibit an anchor effect.
さらに、軟質で透明な樹脂よりなる緩衝層は使用時の熱
応力や接着時の残留応力を吸収する。Furthermore, the buffer layer made of soft and transparent resin absorbs thermal stress during use and residual stress during adhesion.
第１図および第２図はこの発明の一実施例を示す側面図
および正面図である０図において、頭は発光素子、（２
）は発光素子Ｑｌのガラス製の前面パネル、（９）は紫
外線硬化型シリコーン樹脂を主成分とする材料を硬化さ
せた外部からの光を遮断するためのフィルタ、ａυはフ
ィルタ（９）を透過した発光素子Ｏ１からの光を集光す
るための耐熱性アクリル樹脂製の集光レンズ、０１は集
光レンズＱｌ＋の粗面化された裏面、０４）は集光レン
ズａＯの裏面に設けられた突起、０９は集光レンズ００
と同等な屈折率を有し粗面化された裏面Ｉ上に塗布硬化
された樹脂層（アンダーコート樹脂層）、αＱは接着性
のブライマーを介して充填された軟質で透明な樹脂より
なる緩衝層である。また、（１７Ｒ） 、 （１７Ｇ）
、 （１７Ｂ）は各々赤画素、緑画素、青画素を示す
。1 and 2 are a side view and a front view showing one embodiment of the present invention. In FIG. 0, the head is a light emitting element, (2
) is the glass front panel of the light-emitting element Ql, (9) is a filter made of a cured material whose main component is ultraviolet curable silicone resin to block external light, and aυ is the filter that passes through the filter (9). A condenser lens made of heat-resistant acrylic resin for condensing light from the light emitting element O1, 01 is the roughened back surface of the condenser lens Ql+, and 04) is provided on the back surface of the condenser lens aO. Protrusion, 09 is condensing lens 00
A resin layer (undercoat resin layer) coated and cured on the roughened back surface I with a refractive index equivalent to It is a layer. Also, (17R), (17G)
, (17B) indicate a red pixel, a green pixel, and a blue pixel, respectively.
上記の構成よりなる実施例を、以下に今少し詳しく述べ
る。An embodiment having the above configuration will be described in more detail below.
まず、集光レンズ０υの粗面化された裏面０１について
述べる。耐熱アクリル樹脂製の集光レンズａυ粗面化の
方法はサンドペーパーによる研磨の他液体ホーニング、
サンドプラスＦなど集光レンズａυ裏面を直接粗す方法
が最も接着性向上に効果かあるが、集光レンズａ１１成
形金型を粗面化しておく方法も可能である。集光レンズ
ａυ裏面の粗面化による接着性向上は、粗面化により表
面積が増加すること、アンカー効果が得られること、ア
クリル樹脂表面のぬれ性が向上することなどによるもの
である。もし集光レンズＯＤ裏面の粗面化を行わないで
直接アンダーコート剤を塗布して硬化させ樹脂層ＯＱを
形成させようとしても、アンダーコート剤がはしかれ４
均一な樹脂層０９を形成するこができない、裏面０１の
粗さは３ないし１５μｍ程度が良い。First, the roughened back surface 01 of the condenser lens 0υ will be described. Methods for roughening the surface of a condensing lens made of heat-resistant acrylic resin include polishing with sandpaper, liquid honing,
Although a method of directly roughening the back surface of the condenser lens aυ such as Sandplus F is most effective in improving adhesion, it is also possible to roughen the surface of the mold for forming the condenser lens a11. The improvement in adhesion by roughening the back surface of the condenser lens aυ is due to the fact that the roughening increases the surface area, provides an anchor effect, and improves the wettability of the acrylic resin surface. If you try to directly apply an undercoat agent and harden it to form a resin layer OQ without roughening the back surface of the condenser lens OD, the undercoat agent will be peeled off.
The roughness of the back surface 01, where a uniform resin layer 09 cannot be formed, is preferably about 3 to 15 μm.
次に樹脂層Ｏωを形成するアンダーコート剤について述
べる。フィルタ（９）の材料の主成分である紫外線硬化
型シリコーン樹脂（信越化学工業（株）製ｘ −［２−
７５０９）をキシレンに２０％溶解したアンダーコート
剤を、粗面化した裏面０焉にスプレー塗布して、溶剤を
風乾したのち紫外線を照射して硬化させ樹脂層０９が形
成する。この硬化した樹脂層ａ９の上にフィルター材料
を塗布し硬化させてフィルタ付きレンズが得られる。ア
ンダーコート剤の溶剤はアクリル樹脂および液状のシリ
コーン樹脂と相溶性があるもので、例えばキシレン、ト
ルエンなどが適当である。濃度は５〜７０％程度が良い
が、１０〜４０％が最適である。アンダーコート剤はア
クリル樹脂と相溶性のある溶剤（キシレン、トルエンな
ど）を含むため、アクリル樹脂の表面にぬれ性が良く、
またアクリル樹脂の表面をわずかに熔解する。また、溶
剤により希釈されているの脂に強固に接着された樹脂層
的が形成される。フィルタ材料の主成分は樹脂層（至）
と同じものであるため、樹脂層ＱＳＩの上に塗布された
フィルタ（９）は強固に接着される。もし粗面化された
アクリル樹脂部に完全に入りこまず欠陥が生じる。また
、アクリル樹脂との相溶性がないため接着力が低い。Next, the undercoat agent forming the resin layer Oω will be described. Ultraviolet curing silicone resin (manufactured by Shin-Etsu Chemical Co., Ltd. x-[2-
An undercoat agent prepared by dissolving 20% of 7509) in xylene is spray applied to the roughened back surface, the solvent is air-dried, and the resin layer 09 is cured by irradiation with ultraviolet rays. A filter material is applied onto the cured resin layer a9 and cured to obtain a lens with a filter. The solvent of the undercoat agent is compatible with the acrylic resin and the liquid silicone resin, and suitable examples include xylene and toluene. The concentration is preferably about 5 to 70%, but optimally 10 to 40%. The undercoat agent contains a solvent (xylene, toluene, etc.) that is compatible with the acrylic resin, so it has good wettability on the surface of the acrylic resin.
It also slightly melts the surface of the acrylic resin. Furthermore, a layer of resin is formed which is firmly adhered to the fat diluted with the solvent. The main component of the filter material is a resin layer (to)
The filter (9) coated on the resin layer QSI is firmly adhered to the resin layer QSI. If it does not completely penetrate into the roughened acrylic resin part, defects will occur. Furthermore, it has low adhesive strength because it is not compatible with acrylic resin.
集光レンズ裏面に設けられた突起００は、例えば直径３
ｍ＋＊、高さ０．５ｍｍの大きさにできており、集光レ
ンズ裏面ａ湯と前面パネル（２）との間隔を厚めに設定
でき、充填硬化された緩衝層α９を厚くすることができ
る。またこの突起（１４１の高さを微調整することによ
り、レンズの成形時に生じている集光レンズα０の反り
を補正できる。最後に緩衝層α睡の形成についてのべる
。接着性ブライマーであるとこ口のシランカップリング
剤（信越化学工業（株）製ブライマーＡまたはブライマ
ーＸ −３３−１４４）をフィルタ（９）と樹脂層（２
）と前面パネル（２）のお互いに対向する全面にあらか
じめ塗布しておく、これらの間に２液付加反応型シリコ
ーンＲＴＶ樹脂（信越化学工業（株）製ＫＥ１６０３Ａ
／Ｂ）を充填硬化させて軟質で透明な樹脂よりなる緩衝
層Ｏｅを形成する。上記２液付加反応型シリコーンＲＴ
Ｖ樹脂の硬化物は無色透明で光透過率が優れており（厚
さｌａ＋＋ｗで９５％）、屈折率が１．５０でガラス（
１，５２）。The projection 00 provided on the back surface of the condenser lens has a diameter of 3, for example.
m+*, height 0.5mm, the distance between the back surface of the condenser lens and the front panel (2) can be set thicker, and the filled and hardened buffer layer α9 can be made thicker. . In addition, by finely adjusting the height of this protrusion (141), it is possible to correct the warping of the condenser lens α0 that occurs during lens molding.Finally, we will discuss the formation of the buffer layer α0. A silane coupling agent (BRIMER A or BRIMER
) and the front panel (2), which are opposite to each other, are coated in advance, and a two-component addition reaction silicone RTV resin (KE1603A manufactured by Shin-Etsu Chemical Co., Ltd.) is applied between these.
/B) is filled and cured to form a buffer layer Oe made of a soft and transparent resin. The above two-component addition reaction silicone RT
The cured product of V resin is colorless and transparent, has excellent light transmittance (95% at thickness la++w), and has a refractive index of 1.50, which is comparable to glass (
1,52).
集光レンズ（１，４９）、 フィルタ（１，４９）と
ほぼ等しい。Almost equal to the condenser lens (1, 49) and filter (1, 49).
また柔軟性で伸びが大きい（伸び率４００％）ため、前
面パネル（２）、集光レンズａＤ、フィルタ（９）の熱
膨張係数の違いによる熱応力を緩和でき、また、表示管
の発光や太陽光による温度上昇による集光レンズ０υの
変形にも十分追従できる。さらに発光素子Ｑｌの発光や
太陽光による光や熱による変色がほとんどなく、硬化時
の体積収縮も少ない、この樹脂は樹脂自体に接着性がな
くむしろ離型性に優れているため、シランカップリング
剤を塗布しない面上で硬化させても接着しない、一方、
シランカップリング剤を塗布することにより強固な接着
性を示す、このため、フィルタ付きレンズと前面パネル
（２）とを接着する際に樹脂がはみだして硬化して付着
してはならない部分にはシランカップリング剤を塗布し
ないようにしておくことにより、樹脂硬化後容易にはみ
だした樹脂を剥離することができる。逆に発光素子０鴎
の前面パネル（２）とこの側壁との接合部外面にもシラ
ンカップリング剤を塗布しておくと、フィルター付きレ
ンズと前面パネル（２）とを接着する際にはみ出した樹
脂が前面パネルと側壁との接合部外周にも強固に接着し
て接合部の気密性を向上させたり、衝撃等によりガラス
が欠けたりするのを保護する。In addition, it is flexible and has a high elongation rate (400% elongation rate), so it can alleviate thermal stress caused by differences in the thermal expansion coefficients of the front panel (2), condenser lens aD, and filter (9). It can also sufficiently follow the deformation of the condenser lens 0υ due to temperature rise due to sunlight. Furthermore, there is almost no discoloration due to the light emitted by the light emitting element Ql or sunlight or heat, and there is little volumetric shrinkage during curing.This resin itself has no adhesive properties and has excellent mold releasability, so silane coupling It does not adhere even if cured on a non-coated surface; on the other hand,
By applying a silane coupling agent, it exhibits strong adhesion.For this reason, when bonding the lens with a filter and the front panel (2), the resin protrudes and hardens, and the silane coupling agent is applied to the areas where it should not be attached. By not applying the coupling agent, it is possible to easily peel off the resin that protrudes after the resin is cured. On the other hand, if you apply silane coupling agent to the outer surface of the joint between the front panel (2) of the light emitting element 0 and this side wall, it will prevent the silane coupling agent from sticking out when bonding the filter lens and the front panel (2). The resin also firmly adheres to the outer periphery of the joint between the front panel and the side wall, improving the airtightness of the joint and protecting the glass from chipping due to impact, etc.
以上の構成により製造された表示素子は、１００℃の沸
騰水中での２時間の煮沸試験、−４０℃・１６８時間の
低温試験、−４０℃・２時間＋８５℃・２時間のヒート
シッンク試験４００サイクル、１３０℃の熱風を集光レ
ンズの表面に１時間吹き付ける熱風試験、６０℃の雰囲
気での点灯試験のいずれでも、集光レンズａｌｌとフィ
ルタ（９）間、およびフィルタ付きレンズと前面パネル
（２）間に異常は全く認められなかった。しかし、アン
ダーコート剤の塗布を省略し樹脂層０９を形成しなかっ
たものでは、低温試験８時間、熱風試験１分間、点灯試
験２４時間で集光レンズａυの粗面化面（至）とフィル
タ（９）の間に剥離が生じた。また、集光レンズ仰の裏
面の粗面化およびアンダーコート剤の塗布を省略したも
のでは、低温試験２時間、ヒートシラツク試験ｌＯサイ
クル熱風試験１分間、点灯試験２時間で集光レンズ０υ
とフィルタ（９）間に剥離が生じた。The display element manufactured with the above configuration was subjected to 400 cycles of a boiling test in boiling water at 100°C for 2 hours, a low temperature test at -40°C for 168 hours, and a heat sink test at -40°C for 2 hours + 85°C for 2 hours. , a hot air test in which 130°C hot air is blown onto the surface of the condenser lens for 1 hour, and a lighting test in an atmosphere of 60°C. ) No abnormalities were observed between them. However, in the case where the application of the undercoat agent was omitted and the resin layer 09 was not formed, the roughened surface of the condenser lens aυ and the filter Peeling occurred during (9). In addition, in the case where the roughening of the back surface of the condensing lens and the application of an undercoat agent were omitted, the condenser lens was 0υ after 2 hours of low temperature test, 1 minute of heat shield test, lO cycle hot air test, and 2 hours of lighting test.
Peeling occurred between the filter and the filter (9).
この発明に係る表示素子においては、赤、緑。 In the display element according to the present invention, red and green.
青の光を選択的に発し前面パネルより各々照射する発光
素子と、前面パネルと少なくとも３個以上の突起を介し
て所定の間隔で隔てられるとともに粗面化した面に塗布
硬化され集光レンズと同等な屈折率を有する樹脂層と、
この樹脂層上に塗布硬化され対応する発光素子が発する
光を透過し外光を遮断するよう配設されたフィルタと、
このフィルタと樹脂層と前面パネルとにより形成される
隙間に接着性のブライマーを介して充填された軟質で透
明な樹脂よりなる緩衝層とを備えたので、表示素子に熱
応力やその他の外力が加わった時でも、集光レンズとフ
ィルタと発光素子の間で剥離を防止することができ、し
かも、接合時の集光レンズの傾きが生じない表示素子を
得ることができる。A light emitting element that selectively emits blue light and irradiates it from the front panel, and a condenser lens that is coated and hardened on a roughened surface that is separated from the front panel by at least three protrusions at a predetermined interval. a resin layer having an equivalent refractive index,
a filter coated and cured on the resin layer and arranged to transmit light emitted by the corresponding light emitting element and block external light;
A buffer layer made of soft, transparent resin is filled in the gap formed by the filter, the resin layer, and the front panel via an adhesive brimer, so that thermal stress and other external forces are not applied to the display element. It is possible to prevent peeling between the condenser lens, filter, and light emitting element even when the condenser lens is joined, and to obtain a display element in which the condenser lens does not tilt during bonding.
第１図はこの発明の一実施例における表示素子を示す側
面図、第２図は第１図における表示素子を発光面よりみ
た正面図、第３図および第４図は従来の複合型の光源用
表示管の基本構造を示す正面図およびＩＶ−ＩＶ線断面
図、第５図は表示素子の蛍光面とフィルタ部分を示す分
解図、第６図は従来の表示素子を示す断面図である。
図において、（２）は前面パネル、（９）はフィルタ、
Ｑｌは発光素子、ＯＩｌは集光レンズ、０刃は粗面化さ
れた裏面、０旬は突起、０９は樹脂層、０１は緩衝層で
ある。
なお、各図中同一符号は同−又は相当部分を示す。
代理人 大 岩 増 雄
第２図
第１図
第３図
第４図
（自発）
１．事ｒ′１〕の表示
特願昭
６３−３２１５８１号
３、補正をする者
代表者
５ 補正の対象
明細書の発明の詳細な説明の桐。
ａ 補正の内容
（１）明細書中篇６頁第６行に「発光素子（１）」とあ
るのを「発光素子αＱ」と訂正する。
（２）同書中筒９頁第１７行に「３ないし１５μｍｌと
あるのを「Ｒｗａｘ ３ないし１５μｍ」と訂正する。
（３）同書中筒１１頁第１２．１３行に「あるとこ口」
とあるのを「あるところ」と訂正する。
以とFIG. 1 is a side view showing a display element in an embodiment of the present invention, FIG. 2 is a front view of the display element in FIG. 1 seen from the light emitting surface, and FIGS. 3 and 4 are conventional composite light sources. 5 is an exploded view showing the phosphor screen and filter portion of the display element, and FIG. 6 is a sectional view showing the conventional display element. In the figure, (2) is the front panel, (9) is the filter,
Ql is a light emitting element, OIl is a condensing lens, 0 blade is a roughened back surface, 0 blade is a protrusion, 09 is a resin layer, and 01 is a buffer layer. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa Figure 2 Figure 1 Figure 3 Figure 4 (Voluntary) 1. Patent Application No. 63-321581 3, representative of the person making the amendment 5 Paulownia Detailed Explanation of the Invention of the Specification Subject to Amendment. a Contents of the amendment (1) In the middle part of the specification, page 6, line 6, "Light emitting element (1)" is corrected to "Light emitting element αQ". (2) On page 9, line 17 of the same book, the phrase ``3 to 15 μml'' has been corrected to ``Rwax 3 to 15 μm''. (3) “Arutokoguchi” on page 11 of the same book, lines 12 and 13.
Correct the phrase “somewhere.” and
Claims (1)
する発光素子、上記前面パネルと少なくとも３個以上の
突起を介して所定の間隔で隔てられるとともに上記発光
素子と相対向する面が粗面化され上記発光素子よりの光
を集光する集光レンズ、この集光レンズの粗面化した面
に塗布硬化され上記集光レンズと同等な屈折率を有する
樹脂層、この樹脂層上に塗布硬化され対応する上記発光
素子が発する光を透過し外光を遮断するよう配設された
フィルタ、このフィルタと上記樹脂層と上記前面パネル
とにより形成される隙間に接着性のプライマーを介して
充填された軟質で透明な樹脂よりなる緩衝層を備えたこ
とを特徴とする表示素子。a light emitting element that selectively emits red, green, and blue light and irradiates each from a front panel; a light emitting element that is separated from the front panel by a predetermined interval via at least three or more protrusions, and has a surface that faces the light emitting element; a condensing lens having a roughened surface and condensing light from the light emitting element; a resin layer coated and hardened on the roughened surface of the condensing lens and having a refractive index equivalent to that of the condensing lens; and a resin layer on the resin layer. A filter is coated and cured and arranged to transmit light emitted by the corresponding light emitting element and block external light, and an adhesive primer is applied to the gap formed by the filter, the resin layer, and the front panel. 1. A display element characterized by comprising a buffer layer made of a soft and transparent resin filled with resin.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32158188A JPH02165188A (en) | 1988-12-19 | 1988-12-19 | Display element |
| US07/451,792 US5126620A (en) | 1988-12-19 | 1989-12-18 | Display element |
| EP89313309A EP0375377B1 (en) | 1988-12-19 | 1989-12-19 | Display element |
| ES89313309T ES2050822T3 (en) | 1988-12-19 | 1989-12-19 | PRESENTATION ELEMENT. |
| ES93200674T ES2112954T3 (en) | 1988-12-19 | 1989-12-19 | PRESENTATION ELEMENT. |
| EP93200674A EP0547046B1 (en) | 1988-12-19 | 1989-12-19 | Display element |
| SG1996002126A SG48823A1 (en) | 1988-12-19 | 1989-12-19 | Display element |
| HK84695A HK84695A (en) | 1988-12-19 | 1995-06-01 | Display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32158188A JPH02165188A (en) | 1988-12-19 | 1988-12-19 | Display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02165188A true JPH02165188A (en) | 1990-06-26 |
Family
ID=18134152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32158188A Pending JPH02165188A (en) | 1988-12-19 | 1988-12-19 | Display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02165188A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767837A (en) * | 1989-05-17 | 1998-06-16 | Mitsubishi Denki Kabushiki Kaisha | Display apparatus |
| JP2006308399A (en) * | 2005-04-27 | 2006-11-09 | Fuji Electric Device Technology Co Ltd | Pressure detecting device |
| WO2009011353A1 (en) * | 2007-07-17 | 2009-01-22 | Sony Chemical & Information Device Corporation | Resin composition and image display device |
| US8773624B2 (en) | 2007-04-09 | 2014-07-08 | Sony Chemical & Information Device Corporation | Resin composition and image display apparatus |
| US8821966B2 (en) | 2007-04-09 | 2014-09-02 | Dexerials Corporation | Image display device |
| US9423638B2 (en) | 2006-07-14 | 2016-08-23 | Dexerials Corporation | Resin composition and display unit |
| US9885895B2 (en) | 2007-07-17 | 2018-02-06 | Dexerials Corporation | Image display device and production method thereof |
| US10216026B2 (en) | 2007-04-09 | 2019-02-26 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
| US10876013B2 (en) | 2007-04-10 | 2020-12-29 | Dexerials Corporation | Method for producing image display apparatus |
-
1988
- 1988-12-19 JP JP32158188A patent/JPH02165188A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767837A (en) * | 1989-05-17 | 1998-06-16 | Mitsubishi Denki Kabushiki Kaisha | Display apparatus |
| JP2006308399A (en) * | 2005-04-27 | 2006-11-09 | Fuji Electric Device Technology Co Ltd | Pressure detecting device |
| US10989944B2 (en) | 2006-07-14 | 2021-04-27 | Dexerials Corporation | Resin composition and display unit |
| US10684498B2 (en) | 2006-07-14 | 2020-06-16 | Dexerials Corporation | Resin composition and display unit |
| US10989943B2 (en) | 2006-07-14 | 2021-04-27 | Dexerials Corporation | Resin composition and display unit |
| US9599847B2 (en) | 2006-07-14 | 2017-03-21 | Dexerials Corporation | Resin composition and display unit |
| US11982890B2 (en) | 2006-07-14 | 2024-05-14 | Dexerials Corporation | Resin composition and display unit |
| US11467438B2 (en) | 2006-07-14 | 2022-10-11 | Dexerials Corporation | Resin composition and display unit |
| US9885900B2 (en) | 2006-07-14 | 2018-02-06 | Dexerials Corporation | Resin composition and display unit |
| US9423638B2 (en) | 2006-07-14 | 2016-08-23 | Dexerials Corporation | Resin composition and display unit |
| US9348062B2 (en) | 2007-04-09 | 2016-05-24 | Dexerials Corporation | Image display device |
| US9354462B2 (en) | 2007-04-09 | 2016-05-31 | Dexerials Corporation | Image display device |
| US8821966B2 (en) | 2007-04-09 | 2014-09-02 | Dexerials Corporation | Image display device |
| US11740501B2 (en) | 2007-04-09 | 2023-08-29 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
| US8773624B2 (en) | 2007-04-09 | 2014-07-08 | Sony Chemical & Information Device Corporation | Resin composition and image display apparatus |
| US10725329B2 (en) | 2007-04-09 | 2020-07-28 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
| US10216026B2 (en) | 2007-04-09 | 2019-02-26 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
| US11237423B2 (en) | 2007-04-09 | 2022-02-01 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
| US10876013B2 (en) | 2007-04-10 | 2020-12-29 | Dexerials Corporation | Method for producing image display apparatus |
| US11614647B2 (en) | 2007-04-10 | 2023-03-28 | Dexerials Corporation | Method for producing image display apparatus |
| US8432516B2 (en) | 2007-07-17 | 2013-04-30 | Sony Chemical & Information Device Corporation | Resin composition and image display device |
| WO2009011353A1 (en) * | 2007-07-17 | 2009-01-22 | Sony Chemical & Information Device Corporation | Resin composition and image display device |
| JP2009186963A (en) * | 2007-07-17 | 2009-08-20 | Sony Chemical & Information Device Corp | Resin composition and image display |
| US9885895B2 (en) | 2007-07-17 | 2018-02-06 | Dexerials Corporation | Image display device and production method thereof |
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