JP2003045343A - Stereoscopic image display device - Google Patents
Stereoscopic image display deviceInfo
- Publication number
- JP2003045343A JP2003045343A JP2001236821A JP2001236821A JP2003045343A JP 2003045343 A JP2003045343 A JP 2003045343A JP 2001236821 A JP2001236821 A JP 2001236821A JP 2001236821 A JP2001236821 A JP 2001236821A JP 2003045343 A JP2003045343 A JP 2003045343A
- Authority
- JP
- Japan
- Prior art keywords
- display device
- stereoscopic image
- image display
- image
- stereoscopic
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/42—Fluorescent layers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/324—Colour aspects
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、立体画像表示装置
に関し、特に、プラズマディスプレイパネルを用いた時
分割２眼式立体画像表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic image display device, and more particularly to a time-division twin-lens stereoscopic image display device using a plasma display panel.
【０００２】[0002]
【従来の技術】時分割２眼式立体画像表示装置は、観視
者が液晶シャッタ眼鏡を着用する必要があるものの、パ
ネル自体は平面画像装置で用いられる従来どおりであ
り、付加、修正の必要がないので立体表示でも空間解像
度を損なわない等の理由により、１つの有用な立体表示
装置として、ＣＲＴ（Cathode Ray Tube）などを用い
て既に実用化されている。ＣＲＴが用いられる理由は、
高速動作が可能であり、また、画像の階調をアナログ的
に表示できるためである。2. Description of the Related Art A time-division twin-lens type stereoscopic image display device requires a viewer to wear liquid crystal shutter glasses, but the panel itself is the same as that used in a flat image device, and addition or modification is required. Since it does not exist, it has already been put into practical use as a useful stereoscopic display device such as a CRT (Cathode Ray Tube) for the reason that spatial resolution is not impaired even in stereoscopic display. The reason why CRT is used is
This is because high-speed operation is possible and the gradation of the image can be displayed in analog.
【０００３】これに対して、プラズマディスプレイパネ
ル（Plasma Display Panel 以下、ＰＤＰという。）
はＣＲＴとは駆動方式が全く異なるため、立体表示装置
用としては実用化が困難であった。すなわち、ＰＤＰは
発光をオンまたはオフする２値制御しかできないため、
画像信号を２値符号化し、符号化された信号を複数のサ
ブフィールドに割り当てて表示するサブフィールド駆動
法により中間調を表示する方式を採用している。しか
し、時分割立体表示では、Ｌ、Ｒ２つの画像を表示する
必要があり、従来サブフィールド駆動法においてこのよ
うな表示を行う方式は開示されていない。On the other hand, a plasma display panel (hereinafter referred to as PDP).
Since the driving method is completely different from that of the CRT, it was difficult to put it into practical use for a stereoscopic display device. That is, since the PDP can only perform binary control for turning on or off the light emission,
A method of displaying halftones by a subfield driving method in which an image signal is binary coded and the coded signal is assigned to a plurality of subfields and displayed. However, in the time-division stereoscopic display, it is necessary to display two images of L and R, and a method of performing such display in the conventional subfield driving method has not been disclosed.
【０００４】上記の問題を解決するために、本出願人
は、１フィールド中の前半および後半の画像表示期間に
先だって無表示期間を配置し、その期間にシャッタ眼鏡
のシャッタの開閉を行う技術（特開２０００−３６９６
９公報参照）や、ＡＣ型ＰＤＰの２値発光型ディスプレ
イに関してＡＤＳ法によるサブフィールドの群を、Ｌ画
像を表示するサブフィールド群と、Ｒ画像を表示するサ
ブフィールド群とに分け、それぞそれぞれのサブフィー
ルド群の最初のサブフィールドのアドレス期間の開始に
同期してシャッタ眼鏡のシャッタを開閉する技術（特開
２０００−１１２４２６公報参照）を、さらには、これ
らの表示を行う際に問題となる階調表示特性の劣化を改
善する技術（特開２０００−５０３１５公報参照）を既
に提案しており、これらの技術を用いることにより、Ｐ
ＤＰにおいて良好な階調特性で立体画像を表示すること
ができる。In order to solve the above-mentioned problem, the present applicant arranges a non-display period prior to the image display periods of the first half and the latter half of one field, and opens and closes the shutter of the shutter glasses during that period ( Japanese Patent Laid-Open No. 2000-3696
9) and a binary light emitting display of an AC PDP, the group of subfields by the ADS method is divided into a subfield group for displaying an L image and a subfield group for displaying an R image. The technique of opening and closing the shutter of the shutter glasses in synchronization with the start of the address period of the first subfield of the above subfield group (see Japanese Patent Laid-Open No. 2000-112426) is a problem when performing these displays. Techniques for improving the deterioration of gradation display characteristics (see Japanese Patent Laid-Open No. 2000-50315) have already been proposed, and by using these techniques, P
It is possible to display a stereoscopic image with good gradation characteristics in DP.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、本出願
人がさらに検討した結果、上記の本出願人が提案するＰ
ＤＰの技術においても、ＣＲＴと比べるとＲ、Ｌ画像
（左右の画像）間のクロストーク妨害が無視できないこ
とが判明した。However, as a result of further examination by the present applicant, the above-mentioned P proposed by the present applicant is proposed.
Even in the DP technique, it has been found that crosstalk interference between R and L images (left and right images) cannot be ignored in comparison with CRT.
【０００６】時分割方式では、例えば図１に示すよう
に、１フィールド内でＬ画像を表示した後にＲ画像を表
示している。このとき、蛍光体に残光があると、図２に
示すように、Ｌ画像の表示光がＲ画像の表示期間になっ
ても十分減衰せず、シャッタ眼鏡を通してＬ画像が右眼
にも見えてしまうという妨害を生じる。これをクロスト
ーク妨害という。このクロストーク妨害により、観視者
には画像が２重に見えてしまい、非常に見づらい状態と
なる。In the time division method, for example, as shown in FIG. 1, the R image is displayed after the L image is displayed in one field. At this time, if there is afterglow in the phosphor, as shown in FIG. 2, the display light of the L image is not sufficiently attenuated even during the display period of the R image, and the L image is visible to the right eye through the shutter glasses. It causes the disturbance of being lost. This is called crosstalk interference. Due to this crosstalk interference, the viewer sees the image twice and is very difficult to see.
【０００７】ＣＲＴ用の蛍光体においても残光があり、
ＣＲＴを用いた立体画像表示装置はクロストーク妨害を
生じている。しかしながら、一般に、ＣＲＴ用の蛍光体
はＰＤＰ用の蛍光体に比べて残光時間が短いため、ＰＤ
Ｐに比べてクロストーク妨害が大きな問題となることは
ない。The CRT phosphor also has afterglow,
A stereoscopic image display device using a CRT causes crosstalk interference. However, in general, the phosphor for CRT has a shorter afterglow time than the phosphor for PDP.
Crosstalk interference is less of a problem than P.
【０００８】なお、ＰＤＰとＣＲＴとは動作原理が異な
り、前者の場合紫外線で蛍光体を励起して発光を得る方
式であるのに対して後者の場合電子ビームの衝突により
蛍光体を励起して発光を得る方式であるため、ＰＤＰ用
の蛍光体にＣＲＴ用の蛍光体をそのまま用いることはで
きない。The operating principles of PDP and CRT are different. In the former case, the phosphor is excited by ultraviolet rays to obtain light emission, whereas in the latter case, the phosphor is excited by collision of electron beams. Since it is a method of obtaining light emission, the phosphor for CRT cannot be used as it is for the phosphor for PDP.
【０００９】また、本発明者らは、ＰＤＰを用いた立体
画像表示装置において、画像信号処理によってクロスト
ーク妨害を改善できることを提言しているが（浜田ほ
か、映像情報メディア学会誌 Vol.55，No.3，pp.439-4
46(2001)）、この場合においても必ずしも十分なクロス
トーク妨害改善効果を得ることは難しい。Further, although the present inventors have proposed that in a stereoscopic image display device using a PDP, crosstalk interference can be improved by image signal processing (Hamada et al., Journal of the Institute of Image Information and Television Engineers Vol.55, No.3, pp.439-4
46 (2001)), even in this case, it is difficult to obtain a sufficient crosstalk interference improvement effect.
【００１０】本発明は、上記の課題に鑑みてなされたも
のであり、クロストーク妨害を改善し、さらには、クロ
ストーク妨害を改善するとともに実用上十分な輝度を有
するＰＤＰを用いた時分割２眼式立体画像表示装置を提
供することを目的とする。The present invention has been made in view of the above problems, and improves the crosstalk interference, and further, improves the crosstalk interference and uses a PDP having a practically sufficient brightness for time division 2. An object is to provide an eye type stereoscopic image display device.
【００１１】[0011]
【課題を解決するための手段】本発明に係る立体画像表
示装置は、プラズマディスプレイパネル（ＰＤＰ）をサ
ブフィールドで駆動し、Ｌ画像信号およびＲ画像信号か
らなる立体画像信号を、１フィールド期間内のＬおよび
Ｒ画像用のサブフィールド群に各々割り当てて順次表示
し、表示された画像をサブフィールド群に同期したシャ
ッタ眼鏡で観視する構成の立体画像表示装置において、
前記プラズマディスプレイパネルの緑の表示セルは、Ｚ
ｎ（亜鉛）、Ｍｎ（マンガン）、Ｓｉ（珪素）およびＯ
（酸素）を主成分とし、かつＺｎ（亜鉛）に対してモル
比で０．０５８を越え、より好ましくは０．０７以上の
Ｍｎ（マンガン）を含む蛍光体材料を塗布してなること
を特徴とする。ここで、Ｍｎは付活剤として作用する。A stereoscopic image display device according to the present invention drives a plasma display panel (PDP) in a subfield to generate a stereoscopic image signal composed of an L image signal and an R image signal within one field period. In the stereoscopic image display device having a configuration in which the L and R images are sequentially assigned to each of the subfield groups and displayed, and the displayed image is viewed with the shutter glasses synchronized with the subfield group,
The green display cell of the plasma display panel is Z
n (zinc), Mn (manganese), Si (silicon) and O
A phosphor material containing (oxygen) as a main component and having a molar ratio with respect to Zn (zinc) of more than 0.058, and more preferably 0.07 or more, is applied. And Here, Mn acts as an activator.
【００１２】従来、ＰＤＰを用いて平面画像を表示する
技術は実用化されており、この場合には輝度効率を重視
していた。これに対してＰＤＰを用いて立体画像を表示
することは殆ど行われていない。ＰＤＰを用いて立体画
像を表示する場合、３原色蛍光体のうち、青用の蛍光体
については一般に残光が十分短く問題はないことがわか
っている。一方、赤、緑用の蛍光体については、例え
ば、平面画像を表示する場合に輝度効率を重視して用い
られる赤色の表示セルの（Ｙ，Ｇｄ，Ｅｕ）ＢＯ ３蛍光
体や従来のＰＤＰの緑色の表示セルに用いられてきた
（Ｚｎ，Ｍｎ）２ＳｉＯ４蛍光体は、残光時間（発光が
１／１０に減少する時間）が１０ｍｓ以上あり、立体画
像を表示する場合著しいクロストーク妨害を生じること
が本出願人の実験によりわかっている。Conventionally, a plane image is displayed using a PDP.
Technology has been put to practical use, in which case emphasis is placed on luminance efficiency
Was. On the other hand, a stereoscopic image is displayed using PDP.
Little has been done. 3D image using PDP
When displaying an image, among the three primary color phosphors, the phosphor for blue
About afterglow is generally not enough short
ing. On the other hand, for red and green phosphors, for example,
For example, when displaying a flat image, use it with emphasis on luminance efficiency.
(Y, Gd, Eu) BO of red display cell Threefluorescence
It has been used for the green display cells of the body and conventional PDPs.
(Zn, Mn)TwoSiOFourThe phosphor has an afterglow time (
The time to decrease to 1/10) is 10 ms or more
Causing significant crosstalk interference when displaying images
Is known by an experiment by the applicant.
【００１３】これに対して、本発明の上記の構成によ
り、残光が短く、したがって、クロストーク妨害が改善
された立体画像表示装置を得ることができる。On the other hand, with the above-described structure of the present invention, it is possible to obtain a stereoscopic image display device having a short afterglow and therefore an improved crosstalk interference.
【００１４】この場合、前記緑色の表示セル用蛍光体材
料は、（Ｚｎ，Ｍｎ）２ＳｉＯ４であり、Ｚｎに対する
Ｍｎのモル比が０．０７以上であると、クロストーク妨
害の改善と実用的に十分な表示輝度を両立させることが
できて好適である。また、よりクロストーク妨害が改善
され、かつより表示輝度の高い立体画像表示装置を得る
ためには、前記蛍光体材料としてＺｎに対するＭｎのモ
ル比が０．０８〜０．１２の範囲にある（Ｚｎ，Ｍｎ）
２ＳｉＯ４を用いることが特に好ましい。In this case, the green phosphor material for a display cell is (Zn, Mn) 2 SiO 4 , and when the molar ratio of Mn to Zn is 0.07 or more, crosstalk interference is improved and practical use is achieved. It is preferable because it is possible to achieve both sufficient display brightness. Further, in order to obtain a stereoscopic image display device with further improved crosstalk interference and higher display brightness, the molar ratio of Mn to Zn as the phosphor material is in the range of 0.08 to 0.12. Zn, Mn)
It is particularly preferable to use 2 SiO 4 .
【００１５】また、この場合、前記（Ｚｎ，Ｍｎ）２Ｓ
ｉＯ４の粒径の中央値が２μｍ以下であると、上記効果
をより好適に奏することができる。In this case, the (Zn, Mn) 2 S
When the median particle size of iO 4 is 2 μm or less, the above effects can be more suitably exhibited.
【００１６】このとき、前記（Ｚｎ，Ｍｎ）２ＳｉＯ４
の粒径の中央値が１〜２μｍの範囲内にあると、さらに
好適である。At this time, the (Zn, Mn) 2 SiO 4
It is more preferable that the median value of the particle diameters is within the range of 1 to 2 μm.
【００１７】また、この場合、前記プラズマディスプレ
イパネルの赤の表示セルは、（Ｙ，Ｇｄ，Ｅｕ）２Ｏ３
または（Ｙ，Ｅｕ）２Ｏ３からなる蛍光体材料を塗布し
てなると、好適である。In this case, the red display cell of the plasma display panel is (Y, Gd, Eu) 2 O 3
Alternatively, it is preferable to apply a phosphor material made of (Y, Eu) 2 O 3 .
【００１８】[0018]
【発明の実施の形態】本発明に係る立体画像表示装置の
好適な実施の形態（以下、本実施の形態例という。）に
ついて、図を参照して、以下に説明する。BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a stereoscopic image display device according to the present invention (hereinafter referred to as an example of the present embodiment) will be described below with reference to the drawings.
【００１９】本実施の形態例に係る立体画像表示装置の
概略構成を図３に示す。FIG. 3 shows a schematic configuration of a stereoscopic image display device according to this embodiment.
【００２０】立体画像表示装置１０は、時分割２眼式立
体画像表示装置であり、立体信号処理回路１２と、駆動
回路１４と、ＰＤＰ１６と、眼鏡制御回路１８と、シャ
ッタ眼鏡２０とを有する。The stereoscopic image display device 10 is a time-sharing twin-lens type stereoscopic image display device and has a stereoscopic signal processing circuit 12, a drive circuit 14, a PDP 16, an eyeglass control circuit 18, and shutter glasses 20.
【００２１】Ｌ、Ｒ信号からなる立体画像信号は、立体
信号処理回路１２に送られ、立体表示用サブフィールド
信号に変換される。具体的には、例えば、前記した本出
願人が既に出願した特許公開公報に記載した方法等によ
り実現される。The stereoscopic image signal composed of the L and R signals is sent to the stereoscopic signal processing circuit 12 and converted into a stereoscopic display subfield signal. Specifically, for example, it is realized by the method described in the above-mentioned patent publication filed by the applicant.
【００２２】サブフィールド信号に従って駆動回路１４
がＰＤＰ１６を駆動する。一方、立体信号処理回路１２
から同期信号が眼鏡制御回路１８に送られる。眼鏡制御
回路１８はサブフィールド信号に同期した赤外線信号を
放射することにより、シャッタ眼鏡２０の動作を制御す
る。これら眼鏡制御回路１８およびシャッタ眼鏡２０は
既に時分割立体画像観視用として市販されており、シャ
ッタ眼鏡２０については液晶シャッタなどを用いた製品
がある。The drive circuit 14 according to the subfield signal
Drives the PDP 16. On the other hand, the stereoscopic signal processing circuit 12
Sends a sync signal to the glasses control circuit 18. The glasses control circuit 18 controls the operation of the shutter glasses 20 by emitting an infrared signal synchronized with the subfield signal. The spectacles control circuit 18 and the shutter spectacles 20 are already on the market for viewing time-division stereoscopic images, and some of the shutter spectacles 20 use a liquid crystal shutter or the like.
【００２３】立体画像表示装置１０の動作タイミングは
前出の図１、図２に示したとおりであり、観視者はシャ
ッタ眼鏡２０を着用してＰＤＰ１６に表示された画像を
見ることにより、立体画像を観視できる。The operation timing of the stereoscopic image display device 10 is as shown in FIGS. 1 and 2 above, and the viewer wears the shutter glasses 20 to see the image displayed on the PDP 16 and You can see the image.
【００２４】ＰＤＰは、赤の表示セルとして（Ｙ，Ｇ
ｄ，Ｅｕ）２Ｏ３蛍光体を、緑の表示セルとして（Ｚ
ｎ，Ｍｎ）２ＳｉＯ４蛍光体を、青の表示セルとして
（Ｂａ，Ｅｕ）ＭｇＡｌ１０Ｏ１７蛍光体をそれぞれ用
いている。これらの化学式は、それぞれ、（Ｙ，Ｇｄ）
２Ｏ３：Ｅｕ、Ｚｎ２ＳｉＯ４：Ｍｎ、ＢａＭｇＡｌ
１０Ｏ １７：Ｅｕとも表記される。ここで、Ｅｕ、Ｍｎ
は付活剤である。なお、赤の表示セルとしてＹ，Ｇｄ，
Ｅｕ）２Ｏ３蛍光体に代えて（Ｙ，Ｅｕ）２Ｏ３蛍光体
を用いてもよい。The PDP serves as a red display cell (Y, G
d, Eu)TwoOThreeThe phosphor is used as a green display cell (Z
n, Mn)TwoSiOFourThe phosphor as a blue display cell
(Ba, Eu) MgAl10O17For each phosphor
I am These chemical formulas are respectively (Y, Gd)
TwoOThree: Eu, ZnTwoSiOFour: Mn, BaMgAl
10O 17: It is also written as Eu. Where Eu, Mn
Is an activator. As a red display cell, Y, Gd,
Eu)TwoOThreeInstead of phosphor (Y, Eu)TwoOThreePhosphor
May be used.
【００２５】本発明の緑の表示セルとしての（Ｚｎ，Ｍ
ｎ）２ＳｉＯ４蛍光体は、Ｚｎに対するＭｎのモル比
（以下、Ｍｎ／Ｚｎで表示する。）が例えば０．１０で
ある。また、（Ｚｎ，Ｍｎ）２ＳｉＯ４蛍光体の粒径
は、コールカウンタで測定した中央値が例えば１．５μ
ｍである。(Zn, M as the green display cell of the present invention
The n) 2 SiO 4 phosphor has a molar ratio of Mn to Zn (hereinafter, represented by Mn / Zn) of 0.10. In addition, the particle size of the (Zn, Mn) 2 SiO 4 phosphor has a median value of 1.5 μm measured by a call counter, for example.
m.
【００２６】ここで、（Ｚｎ，Ｍｎ）２ＳｉＯ４蛍光体
のＭｎ／Ｚｎを代えたときの残光時間（発光が１／１０
に減少する時間）と輝度効率の変化を図４に示す。Here, the afterglow time (emission is 1/10) when Mn / Zn of the (Zn, Mn) 2 SiO 4 phosphor is changed.
FIG. 4 shows the changes in the luminance efficiency and the luminance efficiency.
【００２７】残光時間は、Ｍｎ／Ｚｎが小さい場合は大
きな値を示すが、Ｍｎ／Ｚｎが大きくなるに伴って急激
に小さくなり、Ｍｎ／Ｚｎが０．０５８を越えると残光
時間が１０ｍｓ以下の十分小さな値になる。したがっ
て、Ｍｎ／Ｚｎが０．０５８より大になるとクロストー
ク妨害が改善され、特にＭｎ／Ｚｎが０．０７以上にな
るとクロストーク妨害はより改善されることがわかる。The afterglow time shows a large value when Mn / Zn is small, but sharply decreases as Mn / Zn increases. When Mn / Zn exceeds 0.058, the afterglow time is 10 ms. The following values are small enough. Therefore, it can be seen that when Mn / Zn is larger than 0.058, the crosstalk interference is improved, and particularly when Mn / Zn is 0.07 or more, the crosstalk interference is further improved.
【００２８】輝度効率は、Ｍｎ／Ｚｎが小さく、したが
って残光時間が大きな値を示す範囲では、大きな値を示
すが、Ｍｎ／Ｚｎが大きくなり、残光時間が小さくなる
につれて、急激に小さくなる。残光時間はより好ましく
は６ｍｓ以下であり、一方輝度効率は７０％以上程度が
必要であると考えられるため、残光時間と輝度効率とが
両立するのは、Ｍｎ／Ｚｎが０．０８〜０．１２の範囲
であることがわかる。Luminance efficiency shows a large value in a range where Mn / Zn is small and thus the afterglow time is large, but decreases rapidly as Mn / Zn increases and the afterglow time decreases. . The afterglow time is more preferably 6 ms or less, while it is considered that the luminance efficiency needs to be about 70% or more. Therefore, the afterglow time and the luminance efficiency are compatible with each other when Mn / Zn is 0.08 to It can be seen that the range is 0.12.
【００２９】また、本発明の緑の表示セルとしての（Ｚ
ｎ，Ｍｎ）２ＳｉＯ４蛍光体は、Ｍｎ／Ｚｎが上記の範
囲内にあるとともに、さらに粒径の中央値が２μｍ以
下、より好ましくは１〜２μｍの範囲内にある。Further, as a green display cell of the present invention, (Z
In the (n, Mn) 2 SiO 4 phosphor, the Mn / Zn is in the above range, and the median particle size is 2 μm or less, more preferably 1 to 2 μm.
【００３０】例えば、（Ｚｎ，Ｍｎ）２ＳｉＯ４蛍光体
のＭｎ／Ｚｎが０．０４で粒径が３μｍのとき残光時間
が２３ｍｓ、輝度効率が１００％であり、また、Ｍｎ／
Ｚｎが０．０５８で粒径が３μｍのとき残光時間が１９
ｍｓ、輝度効率が１００％であった。これに対して、Ｍ
ｎ／Ｚｎが０．０５８であっても粒径が１．５μｍの場
合、残光時間が１９ｍｓで粒径が３μｍのときと変わら
ないものの、１１２％という高い輝度効率を実現するこ
とができた。また、Ｍｎ／Ｚｎが０．１０で粒径が３μ
ｍのとき残光時間が７ｍｓ、輝度効率が７０％であり、
Ｍｎ／Ｚｎが０．１０で粒径が１．５μｍのとき図４に
示すように残光時間が３．５ｍｓ、輝度効率が８５％と
なった。For example, when Mn / Zn of the (Zn, Mn) 2 SiO 4 phosphor is 0.04 and the particle size is 3 μm, the afterglow time is 23 ms, the luminance efficiency is 100%, and Mn /
Afterglow time is 19 when Zn is 0.058 and particle size is 3 μm
ms, and the luminance efficiency was 100%. On the other hand, M
Even if n / Zn was 0.058, when the particle size was 1.5 μm, the afterglow time was 19 ms, which was the same as when the particle size was 3 μm, but a high luminance efficiency of 112% could be realized. . Further, Mn / Zn is 0.10 and the particle size is 3 μm.
Afterglow time is 7 ms, luminance efficiency is 70% when m,
When Mn / Zn was 0.10 and the particle size was 1.5 μm, the afterglow time was 3.5 ms and the luminance efficiency was 85% as shown in FIG.
【００３１】[0031]
【発明の効果】本発明に係る立体画像表示装置によれ
ば、プラズマディスプレイパネルをサブフィールドで駆
動し、Ｌ画像信号およびＲ画像信号からなる立体画像信
号を、１フィールド期間内のＬおよびＲ画像用のサブフ
ィールド群に各々割り当てて順次表示し、表示された画
像をサブフィールド群に同期したシャッタ眼鏡で観視す
る構成の立体画像表示装置において、プラズマディスプ
レイパネルの緑の表示セルは、Ｚｎ、Ｍｎ、Ｓｉおよび
Ｏを主成分とし、かつＺｎに対してモル比で０．０５８
を越えるＭｎを含む蛍光体材料を塗布してなるため、残
光が短く、したがって、クロストーク妨害が改善された
立体画像表示装置を得ることができる。According to the stereoscopic image display device of the present invention, the plasma display panel is driven in the subfield, and the stereoscopic image signal composed of the L image signal and the R image signal is supplied to the L and R images within one field period. In the stereoscopic image display device having a configuration in which the images are sequentially assigned to the subfield groups for display and the displayed image is viewed by the shutter glasses synchronized with the subfield groups, the green display cell of the plasma display panel is Zn, Contains Mn, Si and O as main components, and has a molar ratio to Zn of 0.058
Since a phosphor material containing Mn exceeding 10 is applied, the afterglow is short, and therefore, a stereoscopic image display device with improved crosstalk interference can be obtained.
【図１】時分割２眼式立体画像表示装置の原理を説明す
るための図である。FIG. 1 is a diagram for explaining the principle of a time-division twin-lens stereoscopic image display device.
【図２】従来の時分割２眼式立体画像表示装置における
クロストーク妨害を説明するための図である。FIG. 2 is a diagram for explaining crosstalk interference in a conventional time-division twin-lens stereoscopic image display device.
【図３】本実施の形態例に係る時分割２眼式立体画像表
示装置の概略構成を説明するための図である。FIG. 3 is a diagram for explaining a schematic configuration of a time-division twin-lens stereoscopic image display device according to the present embodiment.
【図４】本実施の形態例に係る時分割２眼式立体画像表
示装置の画像表示特性を示すグラフ図である。FIG. 4 is a graph showing image display characteristics of the time-division twin-lens stereoscopic image display device according to the present embodiment.
１０ 画像表示装置 １２ 立体信号処理回路 １４ 駆動回路 １６ ＰＤＰ １８ 眼鏡制御回路 ２０ シャッタ眼鏡 10 Image display device 12 Three-dimensional signal processing circuit 14 Drive circuit 16 PDP 18 Glasses control circuit 20 shutter glasses
───────────────────────────────────────────────────── フロントページの続き (72)発明者 栗田 泰市郎 東京都世田谷区砧一丁目10番11号 日本放 送協会 放送技術研究所内 (72)発明者 浜田 宏一 東京都世田谷区砧一丁目10番11号 日本放 送協会 放送技術研究所内 (72)発明者 山本 久米次 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 久宗 孝之 神奈川県小田原市成田1060番地 化成オプ トニクス株式会社小田原工場内 (72)発明者 那部 正和 神奈川県小田原市成田1060番地 化成オプ トニクス株式会社小田原工場内 Ｆターム(参考） 4H001 CA05 XA08 XA14 XA30 XA39 XA64 YA25 YA63 5C040 GG08 KB02 KB09 LA18 MA04 5C061 AA01 AA03 AA11 AA13 AB11 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Taiichi Kurita 1-10-11 Kinuta, Setagaya-ku, Tokyo, Japan Broadcasting Association Broadcast Technology Institute (72) Inventor Koichi Hamada 1-10-11 Kinuta, Setagaya-ku, Tokyo, Japan Broadcasting Association Broadcast Technology Institute (72) Inventor Kume Yamamoto 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Takayuki Kusou 1060 Narita, Odawara-shi, Kanagawa Kasei Op Tonics Co., Ltd. Odawara factory (72) Inventor Masakazu Nabe 1060 Narita, Odawara-shi, Kanagawa Kasei Op Tonics Co., Ltd. Odawara factory F-term (reference) 4H001 CA05 XA08 XA14 XA30 XA39 XA64 YA25 YA63 5C040 GG08 KB02 KB09 LA18 MA04 5C061 AA01 AA03 AA11 AA13 AB11
Claims (6)
ールドで駆動し、Ｌ画像信号およびＲ画像信号からなる
立体画像信号を、１フィールド期間内のＬおよびＲ画像
用のサブフィールド群に各々割り当てて順次表示し、表
示された画像をサブフィールド群に同期したシャッタ眼
鏡で観視する構成の立体画像表示装置において、 前記プラズマディスプレイパネルの緑の表示セルは、Ｚ
ｎ、Ｍｎ、ＳｉおよびＯを主成分とし、かつＺｎに対し
てモル比で０．０５８を越えるＭｎを含む蛍光体材料を
塗布してなることを特徴とする立体画像表示装置。1. A plasma display panel is driven in subfields, and a stereoscopic image signal composed of an L image signal and an R image signal is allocated to a subfield group for L and R images in one field period and sequentially displayed. In the stereoscopic image display device configured to view the displayed image with shutter glasses synchronized with the subfield group, the green display cell of the plasma display panel is Z
A three-dimensional image display device comprising a phosphor material containing n, Mn, Si and O as main components and containing Mn in a molar ratio of more than 0.058 with respect to Zn.
７以上であることを特徴とする請求項１記載の立体画像
表示装置。2. The molar ratio of Mn to Zn is 0.0.
The stereoscopic image display device according to claim 1, wherein the stereoscopic image display device is 7 or more.
ｉＯ４であり、Ｚｎに対するＭｎのモル比が０．０８〜
０．１２の範囲内にあることを特徴とする請求項１記載
の立体画像表示装置。3. The phosphor material is (Zn, Mn) 2 S
iO 4 , and the molar ratio of Mn to Zn is 0.08 to
The stereoscopic image display device according to claim 1, wherein the stereoscopic image display device is in a range of 0.12.
中央値が２μｍ以下であることを特徴とする請求項３記
載の立体画像表示装置。4. The three-dimensional image display device according to claim 3, wherein the median value of the particle diameters of the (Zn, Mn) 2 SiO 4 is 2 μm or less.
中央値が１〜２μｍの範囲内にあることを特徴とする請
求項４記載の立体画像表示装置。5. The stereoscopic image display device according to claim 4, wherein the median value of the particle diameters of (Zn, Mn) 2 SiO 4 is in the range of 1 to 2 μm.
表示セルは、（Ｙ，Ｇｄ，Ｅｕ）２Ｏ３または（Ｙ，Ｅ
ｕ）２Ｏ３からなる蛍光体材料を塗布してなることを特
徴とする請求項１〜５のいずれか１項に記載の立体画像
表示装置。6. The red display cell of the plasma display panel comprises (Y, Gd, Eu) 2 O 3 or (Y, E).
u) The three-dimensional image display device according to any one of claims 1 to 5, wherein a phosphor material made of 2 O 3 is applied.
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