JPS645742B2 - - Google Patents
Info
- Publication number
- JPS645742B2 JPS645742B2 JP10274580A JP10274580A JPS645742B2 JP S645742 B2 JPS645742 B2 JP S645742B2 JP 10274580 A JP10274580 A JP 10274580A JP 10274580 A JP10274580 A JP 10274580A JP S645742 B2 JPS645742 B2 JP S645742B2
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- transparent body
- cathode ray
- ray tube
- refractive
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 36
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/24—Supports for luminescent material
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】
本発明はカラー陰極線管装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color cathode ray tube device.
例えば、クロマトロン方式やトリニトロン方式
のカラーブラウン管では、周知の如く、螢光体が
ストライプ状に配されている。ところが、近年、
特に画面の大型化に伴なつて、この螢光体ストラ
イプの縞模様が画面に見えてしまう等、螢光体ス
トライプの木目の粗さが目立つてきた。このこと
は、シヤドウ・マスク方式のブラウン管について
も同様である。 For example, in a Chromatron type or Trinitron type color cathode ray tube, phosphors are arranged in stripes, as is well known. However, in recent years,
In particular, as screens have become larger, the roughness of the grain of the phosphor stripes has become noticeable, with the striped pattern of the phosphor stripes becoming visible on the screen. The same holds true for shadow mask type cathode ray tubes.
本発明はこのような実情に鑑みてなされたもの
であつて、カラー陰極線管の螢光体面の外側に第
１の屈折率を有する第１の透明体を設け、この第
１の透明体の外側に上記第１の屈折率より大なる
第２屈折率を有する第２の透明体を設け、上記第
１及び第２の透明体の境界面に、螢光体トリオの
配列方向にこの螢光体トリオの繰返しピツチの
１／3n（ｎ：自然数）のピツチで繰返す所定パター
ンの屈折面を具備せしめ、各螢光体からの光をこ
れらの屈折面で屈折させることに依り、この各螢
光体からの光を夫々上記第２の透明体表面の所定
の複数箇所からほゞ平行に放射させるようにした
カラー陰極線管装置に係るものである。このよう
に構成することに依つて、螢光体トリオの繰返し
ピツチを見掛け上細かくすることが出来、従つ
て、画面の木目の粗さを軽減させることが出来
る。 The present invention has been made in view of the above circumstances, and includes providing a first transparent body having a first refractive index on the outside of the phosphor surface of a color cathode ray tube. a second transparent body having a second refractive index greater than the first refractive index, and the phosphor is disposed at the interface between the first and second transparent bodies in the direction in which the phosphor trio is arranged. Each phosphor is provided with a predetermined pattern of refractive surfaces that repeats at a pitch of 1/3n (n: natural number) of the repeating pitch of the trio, and the light from each phosphor is refracted by these refractive surfaces. The present invention relates to a color cathode ray tube device in which light is emitted substantially parallel from a plurality of predetermined locations on the surface of the second transparent body, respectively. With this configuration, the repetition pitch of the phosphor trio can be made finer in appearance, and therefore the roughness of the grain of the screen can be reduced.
以下、本発明を実施例につき図面を参照して説
明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments and drawings.
先ず、本発明をトリニトロン方式のカラーブラ
ウン管１に適用した例を第１図〜第４図につき説
明する。 First, an example in which the present invention is applied to a trinitron type color cathode ray tube 1 will be explained with reference to FIGS. 1 to 4.
第１図及び第３図に示すように、ブラウン管１
のパネル２の表面には、シリコーン樹脂から成る
第１の透明体３が塗布され、更に、この第１の透
明体３を介して、アクリル板から成る第２の透明
体４が接着されている。そして、この第２の透明
体４の内側面には、図示の如く、多数の互に平行
な三角溝が設けられ、この内側面を上記第１の透
明体３に圧着することに依り、これら第１の透明
体３と第２の透明体４との間に、第３図に明示す
るような、断面が三角波状の境界面５を形成させ
る。即ち、この境界面５においては、一対の屈折
面８が互に所定の角度で交差して繰返している。
第２の透明体４は、例えば、機械加工した金型に
依りアクリル板を加熱成形して製造することが出
来、又、切削加工に依つて形成しても良い。この
ようにして、境界面５を簡単でしかも精密に仕上
げることが出来る。 As shown in FIGS. 1 and 3, a cathode ray tube 1
A first transparent body 3 made of silicone resin is coated on the surface of the panel 2, and a second transparent body 4 made of an acrylic plate is further bonded via this first transparent body 3. . As shown in the figure, a large number of mutually parallel triangular grooves are provided on the inner surface of the second transparent body 4, and these grooves can be formed by pressing this inner surface onto the first transparent body 3. A boundary surface 5 having a triangular wave-like cross section is formed between the first transparent body 3 and the second transparent body 4, as clearly shown in FIG. That is, in this boundary surface 5, a pair of refracting surfaces 8 intersect with each other at a predetermined angle and repeat.
The second transparent body 4 can be manufactured, for example, by heating and molding an acrylic plate using a machined mold, or may be formed by cutting. In this way, the boundary surface 5 can be easily and precisely finished.
一方、ブラウン管１のパネル２の内面には、第
３図に示すように、螢光体ストライプ６が塗布さ
れている。この螢光体ストライプ６は、赤色Ｒ、
緑色Ｇ、青色Ｂの各螢光体ストライプが夫々、カ
ーボンブラツクのような光吸収体から成るストラ
イプ７を介して所定の順序に配列されて構成され
ている。そして、前述した第２の透明体４の三角
溝は、これら各螢光体ストライプの長手方向と平
行に設けられている。 On the other hand, the inner surface of the panel 2 of the cathode ray tube 1 is coated with phosphor stripes 6, as shown in FIG. This phosphor stripe 6 is red R,
Green G and blue B phosphor stripes are arranged in a predetermined order through stripes 7 made of a light absorber such as carbon black. The triangular grooves of the second transparent body 4 described above are provided parallel to the longitudinal direction of each of these phosphor stripes.
螢光体トリオRGBの繰返しピツチl1は、例えば
27インチのブラウン管で約0.90mmであり、本実施
例においては、境界面５の各屈折面８の繰返しピ
ツチl2をその1/3、即ち、約0.30mmに選定してい
る。そして、各螢光体ストライプＲ，Ｇ又はＢか
らの光を夫々境界面５の２ケ所で屈折させて平行
に取出すようにしている。 The repetition pitch l 1 of the phosphor trio RGB is e.g.
This is approximately 0.90 mm for a 27-inch cathode ray tube, and in this embodiment, the repetition pitch l 2 of each refracting surface 8 of the interface 5 is selected to be 1/3 of this, that is, approximately 0.30 mm. The light from each phosphor stripe R, G, or B is refracted at two locations on the boundary surface 5 and extracted in parallel.
このことを、第４図を参照して詳しく説明す
る。但し、以下の説明を簡単にする為、ガラスか
ら成るパネル２とシリコーン樹脂３との間の屈折
を無視して考える。 This will be explained in detail with reference to FIG. However, in order to simplify the following explanation, the refraction between the panel 2 made of glass and the silicone resin 3 will be ignored.
今、赤色の螢光体Ｒから出た光が境界面５の２
点R1とR2とから平行に放射され、又、緑色の螢
光体Ｇ及び青色の螢光体Ｂからの光が夫々G1，
G2及びB1，B2から全て平行に放射されるとする。
そして、この時時、境界面５上に配列されるG1，
R2，B1，G2，………の間の間隔は全て等間隔と
し、しかも、Ｇ，Ｒ，Ｂがこの順番で順次配列さ
れるようにする。このように構成することに依つ
て、螢光体トリオRGBの繰返しピツチl1の間に丁
度６つのストライプB2′，G1，R2，B1，G2，
R1′が含まれることになり、従つて、見掛け上の
螢光体トリオの繰返しピツチl3はl1の1/2となる。
言い換えると、境界面５上には、本来の螢光体ス
トライプＲ，Ｇ，Ｂの倍のストライプが表われ、
この為に見掛け上は画面の木目が細かくなつたよ
うに感じるのである。しかも、このようにして得
られる像は光学的な２重像であつて、いわゆる広
がりを持たないので、ボケのない鮮明な画像とな
る。 Now, the light emitted from the red phosphor R is 2 on the interface 5.
The light from the green phosphor G and the blue phosphor B is emitted in parallel from points R 1 and R 2 , respectively.
Assume that all rays are radiated in parallel from G 2 , B 1 , and B 2 .
At this time, G 1 arranged on the boundary surface 5,
The intervals between R 2 , B 1 , G 2 , . . . are all equal, and G, R, and B are arranged in this order. By arranging in this way, exactly six stripes B 2 ′ , G 1 , R 2 , B 1 , G 2 ,
R 1 ' will be included, and therefore the apparent repetition pitch l 3 of the phosphor trio will be 1/2 of l 1 .
In other words, stripes twice as many as the original phosphor stripes R, G, and B appear on the interface 5,
For this reason, the wood grain on the screen appears to be finer. Moreover, the image obtained in this way is an optical double image and does not have so-called spread, resulting in a clear image without blur.
このような構成は、第１の透明体３の屈折率
n1、第２の透明体４の屈折率n2及び各屈折面８の
傾きφを夫々適当に選定すれば達成される。例え
ば、第４図において、螢光面６と境界面５との間
の距離ｄを約13mmとした27インチのブラウン管に
ついて言えば、アクリル板４の屈折率n2を約
1.49、屈折面８の傾きφを約24゜に夫々設定した
場合、シリコーン樹脂３の屈折率n1を略1.47に選
定すれば良いことが分る。なお、屈折面８の傾き
φは略20〜30゜程度にするのが望ましい。 Such a configuration allows the refractive index of the first transparent body 3 to
This can be achieved by appropriately selecting n 1 , the refractive index n 2 of the second transparent body 4, and the inclination φ of each refractive surface 8, respectively. For example, in FIG. 4, for a 27-inch cathode ray tube in which the distance d between the fluorescent surface 6 and the interface 5 is approximately 13 mm, the refractive index n 2 of the acrylic plate 4 is approximately
1.49, and the inclination φ of the refractive surface 8 is set to approximately 24 degrees, it is understood that the refractive index n 1 of the silicone resin 3 should be selected to approximately 1.47. Note that it is desirable that the inclination φ of the refractive surface 8 is approximately 20 to 30 degrees.
一方、上述のようにして画面の螢光体ストライ
プ構造を消去すると、却つて水平走査線構造が強
調されてしまうような場合がある。そこで、この
ような場合には、電子ビームを垂直方向即ち水平
走査線と直角の方向に高周波で振動させることに
依り上記水平走査線構造をも消去することが出来
る。又、例えば透明体の数を増やして、上述した
境界面５の他に、これとは直角方向即ち水平走査
線と平行な方向の三角溝を有する別の境界面を設
けるようにしても良い。更に、透明体３と４との
間の境界面５を、第２図に示すように、各屈折面
８が縦横に配列されたパターンに構成することも
出来る。 On the other hand, if the phosphor stripe structure of the screen is erased as described above, the horizontal scanning line structure may be emphasized instead. Therefore, in such a case, the horizontal scanning line structure can also be erased by vibrating the electron beam at high frequency in a vertical direction, that is, in a direction perpendicular to the horizontal scanning line. Further, for example, the number of transparent bodies may be increased to provide, in addition to the above-mentioned boundary surface 5, another boundary surface having triangular grooves in a direction perpendicular to the boundary surface 5, that is, in a direction parallel to the horizontal scanning line. Furthermore, the boundary surface 5 between the transparent bodies 3 and 4 can also be configured in a pattern in which the refractive surfaces 8 are arranged vertically and horizontally, as shown in FIG.
次に、本発明をシヤドウ・マスク方式のカラー
ブラウン管に適用する場合を説明する。 Next, a case will be described in which the present invention is applied to a color cathode ray tube of the shadow mask type.
シヤドウ・マスク方式のカラーブラウン管で
は、赤色Ｒ、緑色Ｇ、青色Ｂの各螢光体が夫々点
状に構成され、第５図に示すように、螢光体トリ
オ、いわゆるドツト・トリオRGBが夫夫正三角
形状をなすように配列されている。これは、互に
60゜の角度で交差する３方向ａ，ｂ及びｃに各螢
光体が同時に配列されたものとみなすことが出来
る。そこで、これら各方向ａ，ｂ又はｃにおける
断面が夫々第３図で述べたと同様の構成となるよ
うに、透明体３と４との間の境界面５のパターン
を設定すれば良い。この１例を第６図に示すが、
この例では、境界面５が六角錘状の凹凸を有して
おり、六角錘の各側面が夫々屈折面８を構成して
いる。即ち、ａ，ｂ，ｃの各方向の断面は夫々第
３図と同様の構成となり、従つて、各螢光体から
の光は、ａ，ｂ，ｃの各方向で夫々２ケ所、計６
ケ所の点から放射されることになる。この為、見
掛け上の螢光体の密度は６倍になる。又、この場
合でも、屈折面８の繰返しピツチl4は、螢光体ト
リオの繰返しピツチl6（但し、一般に言うドツ
ト・ピツチl5とは異なるの1/3である。 In a color cathode ray tube using the shadow mask method, each of the red R, green G, and blue B phosphors is configured in the form of a dot, and as shown in Figure 5, the phosphor trio, the so-called dot trio RGB, They are arranged in the shape of an equilateral triangle. This is mutual
It can be considered that the phosphors are arranged simultaneously in three directions a, b, and c that intersect at an angle of 60 degrees. Therefore, the pattern of the boundary surface 5 between the transparent bodies 3 and 4 may be set so that the cross section in each of these directions a, b, or c has a configuration similar to that described in FIG. 3, respectively. An example of this is shown in Figure 6.
In this example, the boundary surface 5 has irregularities in the shape of a hexagonal pyramid, and each side surface of the hexagonal pyramid constitutes a refracting surface 8, respectively. That is, the cross sections in each direction of a, b, and c have the same structure as shown in FIG.
It will be radiated from several points. Therefore, the apparent density of the phosphor increases six times. Also, in this case, the repeating pitch l4 of the refractive surface 8 is 1/3 of the repeating pitch l6 of the phosphor trio (however, it is different from the generally speaking dot pitch l5) .
以上、本発明を実施例につき説明したが、上記
実施例は本発明を限定するものでは決してなく、
本発明の技術的思想に基いて種々の変更が可能で
ある。例えば、屈折面８の繰返しピツチは螢光体
トリオの繰返しピツチの1/3に限られることはな
く、１／（３の倍数）であれば良い。又、上記実
施例においては、第１の透明体３を塗布に依り形
成したが、例えば、予め所定形状に成形した透明
樹脂やガラス等を接着して取付けても良い。更
に、この第１の透明体３はブラウン管のパネル２
と同じものであつても良い。 Although the present invention has been described above with reference to Examples, the above Examples do not limit the present invention in any way.
Various modifications are possible based on the technical idea of the present invention. For example, the repeating pitch of the refractive surface 8 is not limited to 1/3 of the repeating pitch of the phosphor trio, but may be 1/(a multiple of 3). Further, in the above embodiment, the first transparent body 3 is formed by coating, but it may be attached by adhering, for example, a transparent resin or glass that has been previously formed into a predetermined shape. Furthermore, this first transparent body 3 is a cathode ray tube panel 2.
It may be the same as.
以上説明したように、本発明においては、螢光
体トリオの配列方向にこの螢光体トリオの繰返し
ピツチの１／3n（ｎ：自然数）のピツチで繰返す所
定パターンの屈折面を具備した境界面を螢光体面
の外部表面側に設け、各螢光体からの光をこれら
の屈折面で屈折させることに依り、この各螢光体
からの光を夫々最も外側の透明体表面の所定の複
数箇所からほゞ平行に放射させるようにしてい
る。従つて、螢光体の見掛け上の密度を増やすこ
とが出来て、木目の細かい画像を得ることが出来
る。又、境界面の工作が容易であつて量産性に富
み、しかも精密に規定出来るので、屈折面におけ
る局部的な散乱がなく、全面に明るさのムラが出
ない。更に、屈折面が外部に露出していないの
で、傷や汚れがつき難い。更に、本発明に依る透
明体を、防爆膜や非反射膜、ニユートラル膜等と
しても利用出来るので大変便利である。 As explained above, in the present invention, a boundary surface is provided with a refractive surface having a predetermined pattern that repeats in the direction in which the phosphor trio is arranged at a pitch of 1/3n (n: natural number) of the repeating pitch of the phosphor trio. is provided on the outer surface side of the phosphor surface, and the light from each phosphor is refracted by these refracting surfaces, so that the light from each phosphor is refracted to a predetermined plurality of surfaces on the outermost transparent body surface. The light is radiated almost parallel from the point. Therefore, the apparent density of the phosphor can be increased and an image with fine grains can be obtained. In addition, since the boundary surface is easy to work, it is suitable for mass production, and can be precisely defined, so there is no local scattering on the refractive surface and there is no unevenness in brightness over the entire surface. Furthermore, since the refractive surface is not exposed to the outside, it is difficult to get scratched or dirty. Furthermore, the transparent body according to the present invention can be used as an explosion-proof film, a non-reflective film, a neutral film, etc., which is very convenient.
図面は本発明の実施例を示すものであつて、第
１図は本発明を適用したトリニトロン管の分解斜
視図、第２図は境界面の変形例を示す分解斜視
図、第３図はブラウン管表面の部分概略断面図、
第４図は第３図における光路図、第５図はシヤド
ウ・マスク形ブラウン管の螢光体面を示す概略
図、第６図はシヤドウ・マスク方式に適用する為
の境界面の分解斜視図である。
なお図面に用いた符号において、３……第１の
透明体、４……第２の透明体、６……螢光体スト
ライプ、８……屈折面、Ｒ……赤色螢光体、Ｇ…
…緑色螢光体、Ｂ……青色螢光体である。
The drawings show embodiments of the present invention, in which Fig. 1 is an exploded perspective view of a trinitron tube to which the invention is applied, Fig. 2 is an exploded perspective view showing a modification of the interface, and Fig. 3 is a cathode ray tube. Partial schematic cross-sectional view of the surface,
Fig. 4 is an optical path diagram in Fig. 3, Fig. 5 is a schematic diagram showing the phosphor surface of a shadow mask type cathode ray tube, and Fig. 6 is an exploded perspective view of the boundary surface for application to the shadow mask method. . In the symbols used in the drawings, 3...first transparent body, 4...second transparent body, 6...fluorescent stripe, 8...refractive surface, R...red phosphor, G...
...green phosphor; B...blue phosphor.
Claims (1)
屈折率を有する第１の透明体を設け、 この第１の透明体の外側に上記第１の屈折率よ
り大なる第２屈折率を有する第２の透明体を設
け、 上記第１及び第２の透明体の境界面に、螢光体
トリオの配列方向にこの螢光体トリオの繰返しピ
ツチの１／3n（ｎ：自然数）のピツチで繰返す所
定パターンの屈折面を具備せしめ、各螢光体から
の光をこれらの屈折面で屈折させることにより、
この各螢光体からの光を夫々上記第２の透明体表
面の所定の複数個所からほぼ平行に放射させるよ
うにしたカラー陰極線管装置。[Claims] 1. A first transparent body having a first refractive index is provided outside the phosphor surface of the color cathode ray tube, and a first transparent body having a first refractive index larger than the first refractive index is provided outside the first transparent body. A second transparent body having a second refractive index of 1/3n ( By providing a predetermined pattern of refractive surfaces that repeat at a pitch of n: a natural number, and refracting the light from each phosphor with these refractive surfaces,
A color cathode ray tube device in which light from each of the phosphors is emitted substantially parallel from a plurality of predetermined locations on the surface of the second transparent body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10274580A JPS5727540A (en) | 1980-07-25 | 1980-07-25 | Color cathode-ray tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10274580A JPS5727540A (en) | 1980-07-25 | 1980-07-25 | Color cathode-ray tube device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5727540A JPS5727540A (en) | 1982-02-13 |
| JPS645742B2 true JPS645742B2 (en) | 1989-01-31 |
Family
ID=14335758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10274580A Granted JPS5727540A (en) | 1980-07-25 | 1980-07-25 | Color cathode-ray tube device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5727540A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148582A (en) * | 1982-02-26 | 1983-09-03 | Sony Corp | Projective type television receiver |
| JPS6044949A (en) * | 1983-08-20 | 1985-03-11 | Riken Ii M C Kk | Translucent screen plate for display device |
| JPS60110965U (en) * | 1983-12-28 | 1985-07-27 | ソニー株式会社 | Projection type television receiver |
| JPS61178582U (en) * | 1985-04-26 | 1986-11-07 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143759A (en) * | 1979-04-26 | 1980-11-10 | Matsushita Electric Ind Co Ltd | Image display tube |
-
1980
- 1980-07-25 JP JP10274580A patent/JPS5727540A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5727540A (en) | 1982-02-13 |
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