【０００１】この発明は、特殊な眼鏡を必要とせずに立
体映像を鑑賞できる立体表示装置に関し、特に縦ストラ
イプ状のカラーフィルタを用いたカラー液晶パネルを映
像表示パネルとして用いた場合に鮮明な立体映像を得る
ことができる立体表示装置に関するものである。The present invention relates to a stereoscopic display device for viewing stereoscopic images without the need for special glasses, and particularly when a color liquid crystal panel using vertical stripe color filters is used as an image display panel, a clear stereoscopic image is obtained. The present invention relates to a stereoscopic display device capable of obtaining an image.
【０００２】[0002]
【従来の技術】従来から特殊な眼鏡を必要とせずに立体
映像を鑑賞できる装置として知られているパララックス
バリア方式の立体表示装置は、図１５に示すように、例
えば映像表示パネルとしての液晶パネル２の観察者側
に、開口部４１と遮光部４２とが縦ストライプ状に交互
に配置されたパララックスバリア４が設けられ、平面状
に発光する光源装置１から出射された光が液晶パネル２
を透過し、この液晶パネル２に表示された映像をパララ
ックスバリア４を介して観察する。2. Description of the Related Art A parallax barrier type stereoscopic display device, which has been known as a device for viewing stereoscopic images without requiring special glasses, is shown in FIG. A parallax barrier 4 in which openings 41 and light-shielding portions 42 are alternately arranged in a vertical stripe pattern is provided on the viewer side of the panel 2, and the light emitted from the light source device 1 which emits light in a planar shape is a liquid crystal panel. Two
The image displayed on the liquid crystal panel 2 is observed through the parallax barrier 4.
【０００３】上記液晶パネル２上には、図１６のように
右目用画像と左目用画像が縦ストライプ状に交互に並ん
で表示され、”右”と書かれた画素列に表示される右目
用映像と、”左”と書かれた画素列に表示される左目用
映像をパララックスバリア４により分離して観測し、視
差を生じさせることにより立体映像を得ている。On the liquid crystal panel 2, right-eye images and left-eye images are alternately displayed in a vertical stripe pattern as shown in FIG. 16, and the right-eye image is displayed in a pixel column written as "right". The image and the image for the left eye displayed in the pixel column labeled "left" are separated by the parallax barrier 4 and observed, and a parallax is generated to obtain a stereoscopic image.
【０００４】そして、上記パララックスバリアの１つの
開口部４１に２列以上の画素列を対応させた方式、いわ
ゆる多眼式の場合には、より広い範囲で立体映像が観測
できる。図１７に、４眼式の立体表示装置の構成を示
す。この図において、液晶パネル２の画素２１〜２４が
それぞれ４つの視点Ａ〜Ｄに対応している。In the case of a system in which two or more pixel columns correspond to one opening 41 of the parallax barrier, that is, a so-called multi-view system, a stereoscopic image can be observed in a wider range. FIG. 17 shows the configuration of a four-eye type stereoscopic display device. In this figure, the pixels 21 to 24 of the liquid crystal panel 2 correspond to four viewpoints A to D, respectively.
【０００５】ところで、パーソナルコンピューター等の
ディスプレイ装置として用いられる液晶パネル２は、映
像の縦線を鮮明に表示するためにカラーフィルタの配列
が図１８に示すような縦ストライプ状になっている。こ
の図において、”Ｒ”、”Ｇ”、”Ｂ”はそれぞれレッ
ド、グリーン、ブルーのカラーフィルタが対応した画素
を表す。By the way, in the liquid crystal panel 2 used as a display device of a personal computer or the like, the arrangement of color filters is in the form of vertical stripes as shown in FIG. 18 in order to clearly display the vertical lines of an image. In this figure, "R", "G", and "B" represent pixels to which the red, green, and blue color filters correspond, respectively.
【０００６】この液晶パネル２を用いて立体表示を行う
場合には、右目用画像と左目用画像がブラック部を挟ん
で縦ストライプ状に交互に並んで表示される。すなわ
ち、”右”と書かれた画素に右目用の映像が、”左”と
書かれた画素に左目用の映像が表示され、上記パララッ
クスバリア４により、左右の映像が分離される。When stereoscopic display is performed using the liquid crystal panel 2, images for the right eye and images for the left eye are displayed alternately in vertical stripes with the black portion sandwiched therebetween. That is, the image for the right eye is displayed in the pixel written as “right”, and the image for the left eye is displayed in the pixel written as “left”, and the parallax barrier 4 separates the left and right images.
【０００７】このような立体表示装置では、左右の目は
それぞれ図１９、図２０に示すように、水平方向の解像
度が半分の縦ストライプ状のカラーフィルタが用いられ
た液晶パネル上に表示された映像と同等の映像を観察す
ることになる。例えば、画素ピッチが０．１１ｍｍの液
晶パネルを用いたパララックスバリア方式立体表示装置
の場合、左右の目はそれぞれ画素ピッチが０．２２ｍｍ
の液晶パネル上の映像を見ているのと同等になる。In such a stereoscopic display device, the left and right eyes are displayed on a liquid crystal panel using a vertical stripe color filter having a horizontal resolution of half, as shown in FIGS. You will observe the same image as the image. For example, in the case of a parallax barrier stereoscopic display device using a liquid crystal panel with a pixel pitch of 0.11 mm, the left and right eyes each have a pixel pitch of 0.22 mm.
It is equivalent to watching the image on the LCD panel.
【０００８】また、従来の特殊な眼鏡を必要とせずに立
体映像を鑑賞できる別の方式として、図２１のように縦
ストライプ状の遮光部をもつ光学フィルタ３を液晶パネ
ル２と光源装置１の間に配置する立体表示装置がある。
この方式においてもパララックスバリア方式の場合と同
様に、左右の目は水平方向の解像度が半分の縦ストライ
プ状のカラーフィルタが用いられた液晶パネル上に表示
された映像と同等の映像を観察することになる。As another method for viewing stereoscopic images without the need for special special glasses, an optical filter 3 having a vertical stripe light-shielding portion as shown in FIG. 21 is provided in the liquid crystal panel 2 and the light source device 1. There is a stereoscopic display device placed in between.
In this method, as in the case of the parallax barrier method, the left and right eyes observe an image equivalent to the image displayed on the liquid crystal panel using a vertical stripe color filter with half the horizontal resolution. It will be.
【０００９】従来のさらに別の方式として、図２２のよ
うに液晶パネル２の観察者側に縦ストライプ状の遮光部
をもつ光学フィルタ４を配置し、さらに液晶パネル２と
光源装置１の間に縦ストライプ状の遮光部をもつ光学フ
ィルタ３を配置する立体表示装置がある。この方式にお
いてもパララックスバリア方式の場合と同様に、左右の
目は水平方向の解像度が半分の縦ストライプ状のカラー
フィルタが用いられた液晶パネル上に表示された映像と
同等の映像を観察することになる。As another conventional method, as shown in FIG. 22, an optical filter 4 having a vertical stripe-shaped light shielding portion is arranged on the observer side of the liquid crystal panel 2, and the liquid crystal panel 2 and the light source device 1 are further arranged. There is a stereoscopic display device in which an optical filter 3 having a vertical stripe light-shielding portion is arranged. In this method, as in the case of the parallax barrier method, the left and right eyes observe an image equivalent to the image displayed on the liquid crystal panel using a vertical stripe color filter with half the horizontal resolution. It will be.
【００１０】[0010]
【発明が解決しようとする課題】ところで、一般に人間
の目は青色に対する感度が悪いため、上記の様な映像で
はカラーフィルタの青の部分の暗さが目立ち、黒い縦縞
が存在するように感じられるという問題がある。By the way, since the human eye is generally insensitive to blue, the darkness of the blue part of the color filter is noticeable in the above image, and it is felt that black vertical stripes are present. There is a problem.
【００１１】この発明は、上記の事情を鑑みてなされた
ものであり、カラーフィルタが縦ストライプ状の液晶パ
ネルを用いた場合でも鮮明な立体映像を得ることができ
る立体表示装置を提供することを目的とするものであ
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a stereoscopic display device capable of obtaining a clear stereoscopic image even when a liquid crystal panel having a vertical stripe color filter is used. It is intended.
【課題を解決するための手段】[Means for Solving the Problems]
【００１２】この発明の第１の立体表示装置は、右目用
映像を表示する右目用画素と左目用映像を表示する左目
用画素をすべての行とすべての列で交互に並ぶように配
置された映像表示パネルと、この映像表示パネルの観察
者側に配置され、前記右目用画素と左目用画素に対応し
た開口部を有し、前記右目用画素と左目用画素からの光
を分離し観察者側に出光する光学フィルタと、を備えて
なる。In the first stereoscopic display device of the present invention, the right-eye pixels for displaying the right-eye image and the left-eye pixels for displaying the left-eye image are arranged alternately in every row and every column. An image display panel and an observer side of the image display panel, which has openings corresponding to the right-eye pixel and the left-eye pixel, separates light from the right-eye pixel and the left-eye pixel, and observes the same. And an optical filter that emits light to the side.
【００１３】この発明の第２の立体表示装置は、平面状
に発光する光源装置と、右目用映像を表示する右目用画
素と左目用映像を表示する左目用画素をすべての行とす
べての列で交互に並ぶように配置された光透過型映像表
示パネルと、前記光源装置と映像表示パネルの間に配置
され、前記右目用画素と左目用画素に対応した開口部を
有し、前記光源装置からの光を分離する光学フィルタ
と、を備えてなる。A second stereoscopic display device of the present invention includes a light source device that emits light in a plane, a right-eye pixel that displays a right-eye image and a left-eye pixel that displays a left-eye image in all rows and all columns. A light transmissive image display panel that is alternately arranged, and an opening that is disposed between the light source device and the image display panel and that corresponds to the right-eye pixel and the left-eye pixel. And an optical filter for separating the light from.
【００１４】この発明の第３の立体表示装置は、平面状
に発光する光源装置と、右目用映像を表示する右目用画
素と左目用映像を表示する左目用画素をすべての行とす
べての列で交互に並ぶように配置された光透過型映像表
示パネルと、前記光源装置と映像表示パネルの間に配置
され、前記右目用画素と左目用画素に対応した開口部を
有し、前記光源装置からの光を分離する第２の光学フィ
ルタと、前記映像表示パネルの観察者側に配置され、前
記右目用画素と左目用画素に対応した開口部を有し、前
記右目用画素と左目用画素からの光を分離し観察者側に
出光する第１の光学フィルタと、を備えてなる。A third stereoscopic display device according to the present invention has a light source device that emits light in a plane, a right-eye pixel that displays a right-eye image, and a left-eye pixel that displays a left-eye image in all rows and all columns. A light transmissive image display panel that is alternately arranged, and an opening that is disposed between the light source device and the image display panel and that corresponds to the right-eye pixel and the left-eye pixel. A second optical filter that separates light from the image display panel, and an opening that is arranged on the viewer side of the image display panel and that corresponds to the right-eye pixel and the left-eye pixel, and the right-eye pixel and the left-eye pixel. A first optical filter that separates the light from the light source and outputs the light to the observer side.
【００１５】[0015]
【作用】この発明によれば、使用する液晶パネルの水平
方向の画素ピッチと同じ水平方向の画素ピッチをもつ液
晶パネルに表示する映像と同等の映像を、左右のそれぞ
れの目が観察することになる。従って、水平方向の画素
列数の減少がなく、従来のように縦縞が存在するように
感じることはない。According to the present invention, each of the left and right eyes can observe an image equivalent to the image displayed on the liquid crystal panel having the same horizontal pixel pitch as the horizontal pixel pitch of the liquid crystal panel used. Become. Therefore, the number of pixel columns in the horizontal direction does not decrease, and vertical stripes do not seem to exist as in the conventional case.
【００１６】[0016]
【実施例】以下、この発明の実施例を図面に基づいて具
体的に説明する。図１は、この発明の第１の実施例の立
体表示装置の分解斜視図であり、平面状の光源装置１の
前面に液晶パネル２が配置され、この液晶パネル２の画
素配列に対応してチェック状の開口部をもつ光学フィル
タ６が、液晶パネル２の観察者側に配置されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an exploded perspective view of a stereoscopic display device according to a first embodiment of the present invention, in which a liquid crystal panel 2 is arranged in front of a flat light source device 1, and a liquid crystal panel 2 is arranged in correspondence with a pixel array. An optical filter 6 having a check-like opening is arranged on the viewer side of the liquid crystal panel 2.
【００１７】図２はこの発明の立体映像表示パネルを模
式的に示した拡大平面図である。図中の四角枠は、１つ
の画素に対応させている。この実施例における液晶パネ
ル２は、映像の縦線を鮮明に表示するためにカラーフィ
ルタの配列が縦ストライプ状になっている。この図にお
いて、”Ｒ”、”Ｇ”、”Ｂ”はそれぞれレッド、グリ
ーン、ブルーのカラーフィルタが対応した画素を表す。FIG. 2 is an enlarged plan view schematically showing the stereoscopic image display panel of the present invention. The square frame in the figure corresponds to one pixel. In the liquid crystal panel 2 of this embodiment, the color filters are arranged in vertical stripes in order to clearly display the vertical lines of the image. In this figure, "R", "G", and "B" represent pixels to which the red, green, and blue color filters correspond, respectively.
【００１８】この実施例においては、図２に示すよう
に、液晶パネル２上の映像は、右目用映像を表示する画
素と左目用映像を表示する画素が、全ての行Ｍ１、Ｍ２
…と全ての列Ｎ１、Ｎ２…で交互に並ぶように表示され
る。この実施例では、１番目の列Ｎ１には、レッド
（Ｒ）の画像が表示され、このＮ１列のレッドの画像は
行方向の一番目Ｍ１に右目用、２番目の行Ｍ２に左目用
と行方向Ｍ１、Ｍ２…に対して右目用画像と左目用画像
が交互に表示される。また、２番目の列Ｎ２には、グリ
ーン（Ｇ）の画像が表示され、このＮ２列のグリーンの
画像は行方向の一番目Ｍ１に左目用、２番目の行Ｍ２に
は右目用と行方向Ｍ１、Ｍ２…に対して左目用画像と右
目用画像が交互に表示される。さらに、３番目の列Ｎ３
には、ブルー（Ｂ）の画像が表示され、このＮ３列のブ
ルーの画像は行方向の一番目Ｍ１に右目用、２番目の行
Ｍ２に左目用と行方向Ｍ１、Ｍ２…に対して右目用画像
と左目用画像が交互に表示される。以下、全ての行Ｍ
１、Ｍ２…と全ての列Ｎ１、Ｎ２…で右目用映像を表示
する画素と左目用映像を表示する画素が交互に並ぶよう
に表示される。In this embodiment, as shown in FIG. 2, in the image on the liquid crystal panel 2, the pixels displaying the right-eye image and the pixels displaying the left-eye image are all rows M1 and M2.
, And all columns N1, N2, ... Are displayed alternately. In this embodiment, a red (R) image is displayed in the first column N1, and the red image in the N1 column is for the right eye at the first M1 in the row direction and for the left eye at the second row M2. An image for the right eye and an image for the left eye are displayed alternately in the row directions M1, M2, .... Further, a green (G) image is displayed in the second column N2, and the green image in the N2 column is for the left eye in the first row direction M1 and for the right eye in the second row M2. Images for the left eye and images for the right eye are displayed alternately for M1, M2, .... Furthermore, the third column N3
A blue (B) image is displayed on the screen, and the blue image in the N3 column is for the right eye in the first M1 in the row direction, for the left eye in the second row M2, and for the right eye in the row directions M1, M2. Images for the left eye and images for the left eye are displayed alternately. Below, all rows M
, M2 ... and all columns N1, N2 ... are displayed so that the pixels displaying the right-eye image and the pixels displaying the left-eye image are alternately arranged.
【００１９】従って、この液晶パネル２には列方向にレ
ッド、グリーン、ブルーと順次画像が表示されるが、
列、行両方向とも隣り合う画素は右目用画像と左目用画
像が交互に表示される。Therefore, on the liquid crystal panel 2, red, green and blue images are sequentially displayed in the column direction.
The right-eye image and the left-eye image are alternately displayed on the pixels adjacent to each other in both the column and row directions.
【００２０】図３は、液晶パネル２の前面に配置される
光学フィルタを模式的に示した拡大平面図であり、この
図に示すように、光学フィルタ６は液晶パネル２の右
目、左眼の画素からそれぞれ出光される光を分離するた
めに、画素形状に対応してチェック状に開口部６１と遮
光部６２が交互に配置されている。この光学フィルタ６
の１つの開口部６１は液晶パネル２の２画素に対応し、
観察者の右目（左目）からは右目用（左目用）の画素の
みが見え、左目用（右目用）画素は遮光部に隠れて見え
ないようになっている。この結果、観察者は左目では図
４に示すように、右目では図５で示すように画面を見る
ことになる。この場合の水平方向の画素列のピッチは、
使用する液晶パネル２の画素ピッチと同じである。従っ
て水平方向の画素列数の減少がなく、従来のように縦縞
が存在するように感じることはない。FIG. 3 is an enlarged plan view schematically showing an optical filter arranged on the front surface of the liquid crystal panel 2. As shown in FIG. 3, the optical filter 6 is provided for the right eye and the left eye of the liquid crystal panel 2. In order to separate the light emitted from each pixel, the openings 61 and the light shielding portions 62 are alternately arranged in a check pattern corresponding to the pixel shape. This optical filter 6
One opening 61 corresponds to two pixels of the liquid crystal panel 2,
Only the pixels for the right eye (for the left eye) can be seen from the right eye (left eye) of the observer, and the pixels for the left eye (for the right eye) are hidden by the light-shielding portion so that they cannot be seen. As a result, the observer sees the screen as shown in FIG. 4 with the left eye and as shown in FIG. 5 with the right eye. In this case, the pixel pitch in the horizontal direction is
It is the same as the pixel pitch of the liquid crystal panel 2 used. Therefore, the number of pixel columns in the horizontal direction does not decrease, and vertical stripes do not seem to exist as in the conventional case.
【００２１】ところで、光学フィルタ６のそれぞれの開
口部６１は、左右の目が見るべき画素からの光を透過
し、遮光部６２は隠れるべき画素からの光を遮っていれ
ばよいので、図６のようにそれぞれが離れていてもよ
く、また図７のようにそれぞれが重なっていてもよい。By the way, each opening 61 of the optical filter 6 transmits light from the pixel to be seen by the left and right eyes, and the light-shielding portion 62 may block light from the pixel to be hidden. May be separated from each other, or may be overlapped as shown in FIG. 7.
【００２２】観察位置での観察者の視点数が２より大き
い多眼式の場合にもこの発明は適用される。図８は４眼
式の立体表示装置の場合の液晶パネル２上の映像表示で
ある。２１〜２４で表されたのがそれぞれ４つの視点に
対応する映像を表示する画素である。この場合の光学フ
ィルタ６は図９のようになる。The present invention is also applicable to a multi-view system in which the number of viewpoints of the observer at the observation position is larger than two. FIG. 8 shows an image display on the liquid crystal panel 2 in the case of a four-eye type stereoscopic display device. Pixels 21 to 24 represent pixels for displaying images corresponding to four viewpoints. The optical filter 6 in this case is as shown in FIG.
【００２３】液晶パネル上の映像は、例えば図１０のよ
うに表示してもよい。この場合光学フィルタは、図１１
のようになる。The image on the liquid crystal panel may be displayed, for example, as shown in FIG. In this case, the optical filter is as shown in FIG.
become that way.
【００２４】これらの他にも画像の表示方法は考えられ
るが、いずれの場合も観察位置のそれぞれの視点位置か
ら、対応する映像を表示している画素がすべて見え、そ
の他の映像を表示する画素が隠れるように光学フィルタ
を形成すればよい。In addition to these methods, image display methods are conceivable, but in any case, from each viewpoint position of the observation position, all the pixels displaying the corresponding video can be seen, and the pixels displaying the other video are displayed. The optical filter may be formed so as to hide.
【００２５】ところで、この発明の光学フィルタ６の開
口部６１のピッチは以下のように算出される。By the way, the pitch of the openings 61 of the optical filter 6 of the present invention is calculated as follows.
【００２６】一般に、観察位置の視点数をＮ，液晶パネ
ルの水平方向の画素ピッチをＰ、垂直方向のピッチを
Ｑ、観察者の眼間距離をＥ、光学フィルタ６の水平方向
の開口ピッチをＢｈ、光学フィルタ６の垂直方向の開口
ピッチをＢｖ、光学フィルタ６の各行における水平方向
の開口ピッチをＢｏとすると、それぞれの関係は下記の
通りになる。Generally, the number of viewpoints at the observation position is N, the pixel pitch in the horizontal direction of the liquid crystal panel is P, the pitch in the vertical direction is Q, the distance between the eyes of the observer is E, and the horizontal aperture pitch of the optical filter 6 is. Let Bh be the vertical aperture pitch of the optical filter 6 be Bv, and the horizontal aperture pitch of each row of the optical filter 6 be Bo.
【００２７】[0027]
【数１】Ｂｏ＝Ｎ・Ｐ・Ｅ／（Ｅ＋Ｐ） …（１）[Equation 1] Bo = N · P · E / (E + P) (1)
【００２８】[0028]
【数２】Ｂｈ＝Ｐ・Ｅ／（Ｅ＋Ｐ） …（２）[Formula 2] Bh = P · E / (E + P) (2)
【００２９】[0029]
【数３】Ｂｖ＝Ｅ・Ｑ／（Ｅ＋Ｐ） …（３）[Formula 3] Bv = E · Q / (E + P) (3)
【００３０】従って、上記関係式に基づいて光学フィル
タ６の水平方向の開口ピッチをＢｈ、垂直方向の開口ピ
ッチをＢｖ、各行における水平方向の開口ピッチをＢｏ
を求めて、光学フィルター６を形成すれば良い。Therefore, based on the above relational expression, the horizontal aperture pitch of the optical filter 6 is Bh, the vertical aperture pitch is Bv, and the horizontal aperture pitch in each row is Bo.
Then, the optical filter 6 may be formed.
【００３１】図１２の分解斜視図に示すこの発明の第２
の実施例に係る立体表示装置では、チェック状の開口部
５１をもつ光学フィルタ５が平面状の光源装置１と液晶
パネル２の間に配置される。The second embodiment of the present invention shown in the exploded perspective view of FIG.
In the stereoscopic display device according to the embodiment, the optical filter 5 having the check opening 51 is arranged between the flat light source device 1 and the liquid crystal panel 2.
【００３２】この場合、図１３のように各画素の映像２
１〜２４の並びは、第１の実施例の場合と逆の配置にな
るが、光学フィルタ５の外観は前記第１の実施例と同じ
である。In this case, as shown in FIG. 13, the image 2 of each pixel is displayed.
The arrangement of 1 to 24 is the reverse of that of the first embodiment, but the appearance of the optical filter 5 is the same as that of the first embodiment.
【００３３】第２の実施例のように構成した立体表示装
置は一般に、観察位置の視点数をＮ、液晶パネルの水平
方向の画素ピッチをＰ、垂直方向のピッチをＱ、観察者
の眼間距離をＥ、光学フィルタ５の水平方向の開口ピッ
チをＢｈ、光学フィルタの垂直方向の開口ピッチをＢ
ｖ、光学フィルタ５の各行における水平方向の開口ピッ
チをＢｏとすると、それぞれの関係は次の通りになる。In the stereoscopic display device constructed as in the second embodiment, generally, the number of viewpoints at the observation position is N, the pixel pitch in the horizontal direction of the liquid crystal panel is P, the pitch in the vertical direction is Q, and the distance between the eyes of the observer. The distance is E, the horizontal aperture pitch of the optical filter 5 is Bh, and the vertical aperture pitch of the optical filter is Bh.
Let v be the opening pitch in the horizontal direction in each row of the optical filter 5, and Bo be the following relationships.
【００３４】[0034]
【数４】Ｂｏ＝Ｎ・Ｐ・Ｅ／（Ｅ−Ｐ） …（４）[Equation 4] Bo = N · P · E / (E−P) (4)
【００３５】[0035]
【数５】Ｂｈ＝Ｐ・Ｅ／（Ｅ−Ｐ） …（５）[Expression 5] Bh = P · E / (E−P) (5)
【００３６】[0036]
【数６】Ｂｈ＝Ｅ・Ｑ／（Ｅ−Ｐ） …（６）[Equation 6] Bh = E · Q / (E−P) (6)
【００３７】従って、上記関係式に基づいて光学フィル
タ５の水平方向の開口ピッチをＢｈ、垂直方向の開口ピ
ッチをＢｖ、各行における水平方向の開口ピッチをＢｏ
を求めて、光学フィルター５を形成すれば良い。Therefore, based on the above relational expression, the horizontal aperture pitch of the optical filter 5 is Bh, the vertical aperture pitch is Bv, and the horizontal aperture pitch in each row is Bo.
Then, the optical filter 5 may be formed.
【００３８】この実施例のその他の構成、作用ないし効
果は上記の第１の実施例のそれらと同様であるので、重
複を避けるためにこれらの説明は省略する。Since the other constructions, functions and effects of this embodiment are the same as those of the above-mentioned first embodiment, their explanations are omitted to avoid duplication.
【００３９】図１４の分解斜視図に示すこの発明の第３
の実施例に係る立体表示装置では、チェック状の開口部
を持つ光学フィルタ６を液晶パネル２の観察者側に配置
し、さらにチェック状の開口部を持つ光学フィルタ５を
光源装置１と液晶パネル２の間に配置したものである。The third embodiment of the present invention shown in the exploded perspective view of FIG.
In the stereoscopic display device according to the embodiment, the optical filter 6 having the check-shaped opening is arranged on the viewer side of the liquid crystal panel 2, and the optical filter 5 having the check-shaped opening is further provided to the light source device 1 and the liquid crystal panel. It is arranged between two.
【００４０】液晶パネル２の観察者側に配置される光学
フィルタ６の開口ピッチは（数式１）〜（数式３）によ
り算出される。また、光源装置１と液晶パネル２の間に
配置される光学フィルタ５の開口ピッチは（数式４）〜
（数式６）により算出される。The aperture pitch of the optical filter 6 arranged on the observer side of the liquid crystal panel 2 is calculated by (Equation 1) to (Equation 3). In addition, the aperture pitch of the optical filter 5 arranged between the light source device 1 and the liquid crystal panel 2 is (Equation 4)
It is calculated by (Equation 6).
【００４１】この実施例のその他の構成、作用ないし効
果は上記の第１の実施例のそれらと同様であるので、重
複を避けるためにこれらの説明は省略する。Since the other constructions, functions and effects of this embodiment are the same as those of the above-mentioned first embodiment, their explanations are omitted to avoid duplication.
【００４２】上述した各実施例において、液晶パネル２
と光源装置１の間に配置される光学フィルタ５は、遮光
部５２をアルミニウムや銀、白塗料のような反射率の高
い素材で形成してもよい。また遮光部５２の光源装置１
側をアルミニウムや銀、白塗料のような反射率の高い素
材で形成し、液晶パネル２側をクロムや酸化クロム、黒
塗料のような反射率の低い素材で形成してもよい。この
ような光学フィルタ５を用いると、光源装置１から発せ
られて遮光部５２に当たった光が反射されて光源装置１
側に戻り、光源装置１のケースに当たり再び反射する。
このような反射を繰り返し、ついには光学フィルタ５の
開口部５１を光が通過する。この作用により光の利用効
率が上がる。In each of the embodiments described above, the liquid crystal panel 2
In the optical filter 5 arranged between the light source device 1 and the light source device 1, the light shielding portion 52 may be formed of a material having a high reflectance such as aluminum, silver, or white paint. In addition, the light source device 1 of the light shielding unit 52
The side may be formed of a material having a high reflectance such as aluminum, silver or white paint, and the liquid crystal panel 2 side may be formed of a material having a low reflectance such as chrome, chrome oxide or black paint. When such an optical filter 5 is used, the light emitted from the light source device 1 and hitting the light shielding portion 52 is reflected, and the light source device 1
It returns to the side, hits the case of the light source device 1, and is reflected again.
Such reflection is repeated until light finally passes through the opening 51 of the optical filter 5. This action improves the light utilization efficiency.
【００４３】また、この発明の光学フィルタ５、６は、
例えばガラス基板上に塗布した感光剤の遮光部となる部
分にレーザを照射して黒化し、黒化していない部分の感
光剤を取り除くことで製造することができる。The optical filters 5 and 6 of the present invention are
For example, it can be manufactured by irradiating a portion of the photosensitive material coated on the glass substrate, which is to be a light-shielding portion, with a laser to blacken it, and removing the photosensitive material in the non-blackened portion.
【００４４】さらに、この発明の光学フィルタ５、６
は、スクリーン印刷やオフセット印刷等の印刷技術を用
いて製造することもできる。Further, the optical filters 5, 6 of the present invention
Can also be manufactured using a printing technique such as screen printing or offset printing.
【００４５】また、この発明の光学フィルタ５、６は、
ガラス基板上にアルミニウムと酸化クロムを蒸着し、エ
ッチングにより形成することで製造することもできる。Further, the optical filters 5 and 6 of the present invention are
It can also be manufactured by depositing aluminum and chromium oxide on a glass substrate and forming them by etching.
【００４６】さらに、この発明の光学フィルタ５、６
は、ガラス基板上にニッケルと酸化クロムの遮光部を電
着により形成することで製造することもできる。Further, the optical filters 5, 6 of the present invention
Can also be manufactured by forming a light-shielding portion of nickel and chromium oxide on a glass substrate by electrodeposition.
【００４７】なお、上述した各実施例は、表示装置とし
て液晶パネルを用いているが、液晶パネル以外に、ＣＲ
Ｔなどのよう発光型の表示装置を用いても同様の効果が
得られる。In each of the above-mentioned embodiments, the liquid crystal panel is used as the display device.
The same effect can be obtained by using a light emitting display device such as T.
【００４８】[0048]
【発明の効果】以上説明したように、この発明によれ
ば、液晶パネルのカラーフィルタが縦ストライプである
場合に、左右の目は、画素列のピッチが、使用する液晶
パネルの画素ピッチと同じである液晶パネルに表示する
映像と同等の映像を観察することになる。従って、水平
方向の画素列数の減少がなく、感じられる縦縞は、使用
する液晶パネルで感じられる縦縞と同等になる。As described above, according to the present invention, when the color filter of the liquid crystal panel is a vertical stripe, the pitch of the pixel columns of the left and right eyes is the same as the pixel pitch of the liquid crystal panel to be used. The same image as that displayed on the liquid crystal panel will be observed. Therefore, there is no reduction in the number of pixel rows in the horizontal direction, and the vertical stripes that can be perceived are the same as the vertical stripes that are perceived by the liquid crystal panel used.
【図１】この発明の第１の実施例を示す分解斜視図であ
る。FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.
【図２】この発明における液晶パネル上の映像表示を表
す平面図である。FIG. 2 is a plan view showing an image display on a liquid crystal panel according to the present invention.
【図３】この発明における光学フィルタの外観を表す平
面図である。FIG. 3 is a plan view showing an appearance of an optical filter according to the present invention.
【図４】この発明において左目が観察する映像を表す模
式図である。FIG. 4 is a schematic diagram showing an image observed by a left eye in the present invention.
【図５】この発明において右目が観察する映像を表す模
式図である。FIG. 5 is a schematic diagram showing an image observed by the right eye in the present invention.
【図６】この発明における別の光学フィルタの外観を表
す平面図である。FIG. 6 is a plan view showing the appearance of another optical filter according to the present invention.
【図７】この発明における更に別の光学フィルタの外観
を表す平面図である。FIG. 7 is a plan view showing the appearance of yet another optical filter according to the present invention.
【図８】この発明の多眼式における液晶パネル上の映像
表示を表す平面図である。FIG. 8 is a plan view showing an image display on a liquid crystal panel in the multiview system of the present invention.
【図９】この発明の多眼式における光学フィルタの外観
を表す平面図である。FIG. 9 is a plan view showing an appearance of an optical filter in the multi-lens type of the present invention.
【図１０】この発明の多眼式における別の液晶パネル上
の映像表示を表す平面図である。FIG. 10 is a plan view showing an image display on another liquid crystal panel in the multiview system of the present invention.
【図１１】この発明の多眼式における別の光学フィルタ
の外観を表す平面図である。FIG. 11 is a plan view showing the appearance of another optical filter in the multi-view type according to the present invention.
【図１２】この発明の第２の実施例を示す分解斜視図で
ある。FIG. 12 is an exploded perspective view showing a second embodiment of the present invention.
【図１３】この発明の第２の実施例における液晶パネル
上の映像表示を表す平面図である。FIG. 13 is a plan view showing an image display on a liquid crystal panel in the second embodiment of the present invention.
【図１４】この発明の第３の実施例を示す分解斜視図で
ある。FIG. 14 is an exploded perspective view showing a third embodiment of the present invention.
【図１５】従来方式の原理を示す模式図である。FIG. 15 is a schematic diagram showing the principle of the conventional method.
【図１６】従来方式における液晶パネル上の映像表示を
表す平面図である。FIG. 16 is a plan view showing image display on a liquid crystal panel in a conventional method.
【図１７】従来方式の多眼式の原理を示す模式図であ
る。FIG. 17 is a schematic diagram showing the principle of a conventional multi-lens system.
【図１８】従来方式における液晶パネル上の映像表示を
表す平面図である。FIG. 18 is a plan view showing image display on a liquid crystal panel in a conventional method.
【図１９】従来方式において左目が観察する映像を表す
模式図である。FIG. 19 is a schematic diagram showing an image observed by the left eye in the conventional method.
【図２０】従来方式において右目が観察する映像を表す
模式図である。FIG. 20 is a schematic diagram showing an image observed by the right eye in the conventional method.
【図２１】別の従来方式の原理を示す模式図である。FIG. 21 is a schematic diagram showing the principle of another conventional method.
【図２２】更に別の従来方式の原理を示す模式図であ
る。FIG. 22 is a schematic view showing the principle of another conventional method.
１ 光源装置 ２ 液晶パネル ３ 従来のパララックスバリア ４ 従来の光学フィルタ ５ 液晶パネルと光源装置の間に配置される光学フィル
タ ６ 観察者側に配置される光学フィルタ1 Light source device 2 Liquid crystal panel 3 Conventional parallax barrier 4 Conventional optical filter 5 Optical filter arranged between liquid crystal panel and light source device 6 Optical filter arranged on observer side
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｎ 5/66 １０２ Ｈ０４Ｎ 5/66 １０２Ａ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl.6 Identification number Office reference number FI technical display location H04N 5/66 102 H04N 5/66 102A
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