JPH0446387A - Display device - Google Patents

Display device

Info

Publication number
JPH0446387A
JPH0446387A JP2154711A JP15471190A JPH0446387A JP H0446387 A JPH0446387 A JP H0446387A JP 2154711 A JP2154711 A JP 2154711A JP 15471190 A JP15471190 A JP 15471190A JP H0446387 A JPH0446387 A JP H0446387A
Authority
JP
Japan
Prior art keywords
display
display device
liquid crystal
displayed
information
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
Application number
JP2154711A
Other languages
Japanese (ja)
Inventor
Takeshi Tomita
富田 武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2154711A priority Critical patent/JPH0446387A/en
Publication of JPH0446387A publication Critical patent/JPH0446387A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N2013/40Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H04N2013/403Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene the images being monoscopic

Landscapes

  • Transforming Electric Information Into Light Information (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE:To improve the secrecy of a display with a simple constitution by carrying out the prescribed controlling of display contents according to the opening/closing of a shielding means, and the unusing of it. CONSTITUTION:The liquid crystal plates 8 of the liquid crystal spectacles 6 of the shielding means and a multiplexer 13 are controlled by the control signal generator 12 of an electronic equipment 14 such as a personal computer, via a liquid crystal driving circuit 5. Only when the means 6 is opened, the information of a first video signal divided when it is necessary, from a signal generator 10, is visually displayed, on this display device 4, through the use of the means 6. When the means 6 is closed, the information of a second video signal divided when it is unnecessary, from a pseudo signal generator 11, is displayed. Consequently, the secrecy of the display is enhanced with the simple constitution.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はパーソナルコンビコータ等の表示部に表示され
た表示文字情報を秘匿させる様にした表示装置に関する
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device that conceals displayed character information displayed on a display unit of a personal combination coater or the like.

〔発明の概要〕[Summary of the invention]

本発明はパーソナルコンビ二一夕等の表示部に表示され
る表示文字情報を秘匿させる様にした表示装置に関し、
複数の映像信号を時分割変換手段を介して表示手段に表
示させると共に遮蔽手段を介して、表示手段に表示され
る映像信号を視る様に成した表示装置に於いて、遮蔽手
段が開かれている時のみ必要な時分割した第1の映像信
号の情報を表示し、遮蔽手段が閉じられている時は不必
要な時分割した第2の映像信号の情報を遮蔽する様に表
示し、遮蔽手段を介さずに表示手段の表示内容を視たと
き必要な時分割した第1の映像信号の映像を]!し得な
い様に表示し、パーソナルコンピュータ等の表示部に表
示された情報内容を第3者に、視えない様にしたもので
ある。
The present invention relates to a display device that hides displayed character information displayed on a display unit of a personal convenience store, etc.
In a display device configured to display a plurality of video signals on a display means via a time division conversion means and to view the video signals displayed on the display means via a shielding means, the shielding means is opened. Displaying the information of the necessary time-divided first video signal only when the shielding means is closed, and displaying the information of the unnecessary time-divided second video signal so as to be shielded, When viewing the display contents of the display means without using the shielding means, the necessary time-divided images of the first video signal]! This is to prevent a third party from viewing the information displayed on the display unit of a personal computer or the like.

〔従来の技術〕[Conventional technology]

近時、パーソナルコンビコータは小型化が進み、ラップ
トツブ型、或はブック型等が普及し、携帯に便利となっ
て、電車、喫茶店等の不特定多数の人が集まる場所で使
用することも多く、入力される内容或は表示部に表示さ
れる内容が秘密を要する場合には他の第3者に見られる
様な問題があった。この様な問題を解決するためには第
3者が表示部をみても、解らない様に成せばよい。この
様に所定情報を秘匿して第3者に解らない様にした警視
技術は提案されていないが、本発明に近い技術として立
体視用の表示装置が知られている。
In recent years, personal combi coaters have become smaller, and laptop or book types have become popular, making them convenient to carry and often used in places where a large number of unspecified people gather, such as trains and coffee shops. However, if the inputted content or the content displayed on the display unit needs to be kept secret, there is a problem in that it can be seen by other third parties. In order to solve this kind of problem, it is sufficient to make it so that even if a third person looks at the display section, he or she cannot see it. Although a supervising technique that conceals predetermined information and prevents it from being revealed to a third party has not been proposed, a stereoscopic display device is known as a technique similar to the present invention.

第5図はこの立体視用の表示装置を示すもので(1)及
び(2)は右眼用カメラ及び左眼用のカメラであり、こ
れら両人右眼用カメラ(1) (2)で撮像した撮像信
号を、例えば右眼用は偶数フィールド、左眼用は奇数フ
ィールドとなる様に時分割変換回路(3)で時分割して
1つのチャンネルにして表示手段(4)に供給し、CR
T上に偶数フィールドでは右眼用カメラ(1)で撮像し
た信号を表示し、奇数フィールドでは左眼用カメラ(2
)で撮像した信号を表示する。
Figure 5 shows this display device for stereoscopic vision, and (1) and (2) are the right eye camera and the left eye camera, and these two right eye cameras (1) and (2) are the right eye camera and left eye camera. The captured image signals are time-divided by a time-division conversion circuit (3) so that the right eye is an even field and the left eye is an odd field, for example, and the signal is converted into one channel and supplied to the display means (4). CR
In even fields, the signal captured by the right eye camera (1) is displayed on T, and in the odd field, the left eye camera (2) is displayed.
) to display the imaged signal.

一方、この時分割した映像信号に同期した遮蔽手段、例
えば液晶眼鏡(6)を液晶駆動回路(5)を介して開閉
させ、表示手段(4)の画面を視る人は奇数フィールド
及び偶数フィールドの映像を分離して別々に視ることで
2つの像が脳で合成されて奥行感のある立体像を知覚す
る様になされたものである。
On the other hand, a shielding means synchronized with this time-divided video signal, for example, liquid crystal glasses (6), is opened and closed via a liquid crystal drive circuit (5), and a person viewing the screen of the display means (4) can display odd and even fields. By separating the two images and viewing them separately, the two images are combined in the brain and a three-dimensional image with a sense of depth is perceived.

液晶眼鏡(6)としては液晶板(8)の両側に互いに格
子方向が直交する偏光板(7) (9)を配設し、液晶
板(8)は2枚の透明電極(ITO)を蒸着したガラス
板間にねじれネマチック(Twisted Nemat
ic) 液晶をサンドイッチ状に挟み込んだものである
The liquid crystal glasses (6) are provided with polarizing plates (7) (9) whose lattice directions are perpendicular to each other on both sides of a liquid crystal plate (8), and two transparent electrodes (ITO) are deposited on the liquid crystal plate (8). Twisted Nemat
ic) A liquid crystal sandwiched between liquid crystals.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述の立体視用の表示装置は所定の左右情報を立体視用
に作成し、第5図で説明した表示装置(4)及び液晶眼
鏡(6)を介して立体視を行なう様に成したものであり
、秘密性の高い表示画面を秘匿させる様に視ようとする
考え方に結ぶ付けることは出来ない。
The above-mentioned display device for stereoscopic viewing is configured to create predetermined left and right information for stereoscopic viewing, and perform stereoscopic viewing via the display device (4) and liquid crystal glasses (6) explained in FIG. Therefore, it cannot be connected to the idea of trying to view a highly confidential display screen in a way that hides it.

本発明は秘匿性の高い表示画面の得られる表示装置を簡
単に得ようとするものである。
The present invention aims to easily provide a display device that provides a display screen with high secrecy.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の表示装置はその例が第1図に示されている様に
、複数の映像信号を時分割変換手段(13)を介して表
示手段(4)に表示させると共に遮蔽手段(6)を介し
て、表示手段(4)に表示される映像信号を視る様に成
した表示装置に於いて、遮蔽手段(6)が開かれている
時のみ必要な時分割した第1の映像信号の情報を表示し
、遮蔽手段(6)が閉じられている時は不必要な時分割
した第2の映像信号の情報を遮蔽する様に表示し、遮蔽
手段(6)を介さずに表示手段(4)の表示内容を視た
とき必要な時分割した第1の映像信号の映像を認識し得
ない様に表示して成るものである。
As an example of the display device of the present invention is shown in FIG. 1, a plurality of video signals are displayed on a display means (4) via a time division conversion means (13), and a shielding means (6) is also provided. In a display device configured to allow viewing of the video signal displayed on the display means (4), the necessary time-divided first video signal is transmitted only when the shielding means (6) is opened. When the shielding means (6) is closed, information is displayed so as to shield unnecessary time-divided second video signal information, and the display means (6) is displayed without going through the shielding means (6). 4) is displayed in such a way that when viewing the display contents, it is impossible to recognize the necessary time-divided first video signal.

〔作用〕[Effect]

本発明の表示装置は特定者だけが表示内容を理解するこ
との出来る表示を行なうことが出来、第3者には表示装
置で表示される表示内容等の秘密を匿くすことの出来る
ものが得られる。更に1台の表示装置で複数の使用者が
異なる別の映像や情報を視ることの出来るものも得られ
る。
The display device of the present invention can display information that only a specific person can understand, and can hide the display contents displayed on the display device from a third party. It will be done. Furthermore, it is possible to obtain a display device that allows a plurality of users to view different images and information.

〔実施例〕〔Example〕

以下、本発明の表示装置の遮蔽手段として液晶眼鏡を用
いて所定情報のみ表示させるものを第1図及び第2図で
説明する。尚、第5図との対応部分には同一符号を付し
て重複説明を省略する。
Hereinafter, a display device of the present invention that uses liquid crystal glasses as a shielding means to display only predetermined information will be described with reference to FIGS. 1 and 2. Incidentally, parts corresponding to those in FIG. 5 are given the same reference numerals and redundant explanation will be omitted.

第1図で、(14)はパーソナルコンビニータ、VTR
等の映像信号を出力する電子機器であり、この電子機器
(14)内には、例えばキャラクタジェネレータの如き
、表示手段(4)の表示面に表示させたい映像信号を発
生させる信号発生器(10)並に同じく、キャラクタジ
ェネレータの如き、擬似の映像信号を発生させる擬似信
号発生器(11)が配設されている。これらの両信号発
生器(10)、 (11) からの映像信号出力は時分
割変換回路を構成する。例えばマルチプレックサ(13
)に供給される。マルチプレックサ(13)は制御信号
発生器(12)の制御信号によって切換が成され、信号
発生器(10)からの映像信号出力と擬似信号発生器(
11)からの擬似映像信号出力がマルチプレックサの出
力端から端子TIを介して表示装置(4)に時分割され
て供給される。
In Figure 1, (14) is a personal convenitor, VTR
This electronic device (14) includes a signal generator (10), such as a character generator, that generates a video signal to be displayed on the display surface of the display means (4). ) Similarly, a pseudo signal generator (11), such as a character generator, for generating a pseudo video signal is provided. Video signal outputs from both signal generators (10) and (11) constitute a time division conversion circuit. For example, a multiplexer (13
). The multiplexer (13) is switched by the control signal of the control signal generator (12), and outputs the video signal from the signal generator (10) and the pseudo signal generator (
The pseudo video signal output from 11) is time-divided and supplied to the display device (4) from the output end of the multiplexer via terminal TI.

表示装置(4)は図に示す様に例えば、7セグメントの
数字表示装置であるとする。
Assume that the display device (4) is, for example, a 7-segment numeric display device as shown in the figure.

制御信号発生器(12)からの制御信号は液晶駆動回路
(5)及び端子T2 を介して液晶眼鏡(6)の液晶板
(8)の透明電極に供給される。勿論、この液晶眼鏡(
6)の液晶板(8)のガラス基板に接して偏光板(7)
 (9)が設けられ、表示装置(4)の文字認識を行な
う人がこの液晶眼鏡をかけている。
The control signal from the control signal generator (12) is supplied to the transparent electrode of the liquid crystal plate (8) of the liquid crystal glasses (6) via the liquid crystal drive circuit (5) and the terminal T2. Of course, these liquid crystal glasses (
6) Polarizing plate (7) in contact with the glass substrate of liquid crystal plate (8)
(9) are provided, and the person who performs character recognition on the display device (4) wears these liquid crystal glasses.

上述の如き本例の表示装置に於ける動作を第2図を用い
て説明する。
The operation of the display device of this example as described above will be explained with reference to FIG.

第1図の信号発生器(10)からの映像信号出力で例え
ば、数字のr123」を表示装置(4)に表示させたい
時は擬似信号発生器(11)から例えば、任意の「12
3」を除<r456Jと云う映像信号を出力させる。こ
れら両映像信号はマルチプレクサ(13)で時分割され
、第2図に示す様に「123」’456J  r123
」 r456」・・・・と交互に端子T、から表示装置
(4)に供給される。この時に制御信号発生器(12)
の制御信号は液晶駆動回路(5)と端子T2 を介して
液晶眼鏡(6)の液晶板(8)に第2図の様に供給され
る。即ち、映像信号の出力が「123」の時は液晶板(
8)の透明電極に電圧を印加せずに遮蔽手段(シャッタ
)を開状態にし、擬似映像信号の「456」が出力され
た時は液晶板〔8)の透明電極に電圧を印加してシャッ
タを閉状態にする。即ち、制御信号に同期してシャッタ
を開閉させる。勿論、これら液晶板(8)に印加する電
圧は偏光板(7) (9)が互いに平行なものであれば
上述とは逆に印加することになる。
For example, when you want to display the number r123 on the display device (4) with the video signal output from the signal generator (10) in FIG.
3'' except r456J is output. These two video signals are time-divided by a multiplexer (13), and as shown in Fig.
"r456"... are alternately supplied from the terminal T to the display device (4). At this time, the control signal generator (12)
The control signal is supplied to the liquid crystal plate (8) of the liquid crystal glasses (6) via the liquid crystal drive circuit (5) and the terminal T2 as shown in FIG. In other words, when the video signal output is "123", the liquid crystal panel (
The shielding means (shutter) is opened without applying a voltage to the transparent electrode of 8), and when the pseudo video signal "456" is output, a voltage is applied to the transparent electrode of the liquid crystal plate [8) and the shutter is closed. to the closed state. That is, the shutter is opened and closed in synchronization with the control signal. Of course, if the polarizing plates (7) and (9) are parallel to each other, the voltages applied to these liquid crystal plates (8) will be opposite to those described above.

上述の様に動作させれば液晶眼鏡(6)をかけて表示装
置(4)を視る場合には必要な映像情報「123」だけ
を視ることが出来るが、液晶眼鏡をかけていない人が表
示装置(4)の画面を視ればr488」の様に視えるの
で、秘匿性を必要とするrl 23Jの文字表示を第3
者の眼から匿すことが出来る警視機能を有する表示装置
が得られる。
If operated as described above, when viewing the display device (4) while wearing the liquid crystal glasses (6), only the necessary video information "123" can be seen, but a person who does not wear the liquid crystal glasses If you look at the screen of the display device (4), you can see something like "r488", so the character display of rl 23J, which requires confidentiality, is displayed as the third
A display device having a monitoring function that can be hidden from people's eyes can be obtained.

上述の実施例では液晶眼鏡をシャッタとして用いたが、
表示装置(4)の表示面上に液晶板或はPL2T等の電
子シャッタを配設し、偏光眼鏡だけを用いて視る様にし
てもよい。この構成によれば偏光眼鏡をかけない人は特
定の表示内容を視ることが出来ないものが得られ、液晶
眼鏡まで制御信号を供給するワイヤーを引きまわす必要
のないものが得られる。
In the above embodiment, liquid crystal glasses were used as shutters, but
A liquid crystal plate or an electronic shutter such as PL2T may be provided on the display surface of the display device (4) so that viewing can be performed using only polarized glasses. According to this configuration, a person who does not wear polarized glasses cannot see specific display contents, and there is no need to route a wire for supplying a control signal to the liquid crystal glasses.

第3図は本発明の表示装置の他の実施例を示すものであ
る。第3図は1台の表示装置で異なった映像情報を視る
様にしたものである。
FIG. 3 shows another embodiment of the display device of the present invention. FIG. 3 shows how different video information can be viewed on one display device.

同図でパーソナルコンビ二一夕の如き電子機器(14)
内には互いに異なる映像信号を出力する第1乃至第nの
信号発生器(10a) (10b) (10c) = 
・−(Ion)の各出力を時分割変換回路を構成するマ
ルチプレックサ(13)の固定接点す、c、d、eに接
続し、可動接片aを介して時分割した映像信号出力を端
子T1 を経て表示装置(4)に供給する。マルチプレ
ックサ(13)の可動接片aは制御信号発生器(12)
によって順次す、c、d、e、b、c、d・・−・と切
り換えられる。一方、液晶駆動回路(5)からの駆動信
号はスイッチ(19)の可動接片aと複数の固定接点す
、  c、  d、  eを介して出力端子T、、 T
、、 T5゜T6 に接続され、これら出力端子は複数
の人がかけた液晶眼鏡(6a) (6b) (6c) 
(6n) 0)液晶板ノ透明電極に供給され、スイッチ
(19)は制御信号発生器(12)からの制御信号に同
期して順次切換えられる様に成されている。
In the same figure, an electronic device like a personal convenience store (14)
There are first to nth signal generators (10a) (10b) (10c) that output mutually different video signals.
- Connect each output of (Ion) to the fixed contacts A, C, D, and E of the multiplexer (13) constituting the time-division conversion circuit, and output the time-division video signal via the movable contact a. It is supplied to the display device (4) via terminal T1. The movable contact a of the multiplexer (13) is the control signal generator (12)
It is sequentially switched to i, c, d, e, b, c, d, . . . On the other hand, the drive signal from the liquid crystal drive circuit (5) is sent to the output terminals T, T, through the movable contact a of the switch (19) and a plurality of fixed contacts S, C, D, and E.
,, are connected to T5゜T6, and these output terminals are connected to LCD glasses (6a) (6b) (6c) worn by multiple people.
(6n) 0) It is supplied to the transparent electrode of the liquid crystal plate, and the switch (19) is configured to be switched sequentially in synchronization with the control signal from the control signal generator (12).

上述の構成によると、マルチプレクサ(]3)から時分
割された第1の信号発生器(10a)  の映像信号を
出力している時はスイッチ(19)は液晶眼鏡(6a)
のみにンヤッタロオンJ「オフ」電圧を供給して、駆動
状態にし、他の液晶眼鏡(6b) (6c)・・・・(
6n)は非駆動状態であるので液晶眼鏡(6a)をかけ
た人だけが表示装置(4)の画面を視ることになる。以
下、次の液晶眼鏡(6b)をかけた人のみ、第2の信号
発生器(10b)  からの映像信号の出力を表示装置
(4〕上で視ることが出来ることになる。この様な構成
では複数の人間が1台のデイスプレィで異なる映像画面
を視ることの出来る表示装置が得られる。
According to the above configuration, when the multiplexer (3) is outputting the time-divided video signal of the first signal generator (10a), the switch (19) is switched to the liquid crystal glasses (6a).
Supply the "off" voltage to only the Nyattaroon J to drive the other LCD glasses (6b) (6c)...
6n) is in a non-driving state, so only the person wearing the liquid crystal glasses (6a) can view the screen of the display device (4). Hereinafter, only the next person wearing the liquid crystal glasses (6b) will be able to see the output of the video signal from the second signal generator (10b) on the display device (4). The configuration provides a display device that allows multiple people to view different video screens on one display.

第4図は本発明の表示装置の更に他の実施例を示すもの
である。第4図は第3図と路間−の構成であるが、第4
図の場合は第1乃至第nの信号発生装置(10a) (
10b) (10c) = = (10n> (D代わ
りに撮像層の第1乃至第nのカメラ(15) (16)
 (17) (18)を設け、被写体く20)を複数の
カメラで撮像する様にしたものである。例えば麻雀、ポ
ーカ−ゲーム等の他の競技者に自分の手の内が1台のデ
イスプレィでも視えない様に成したもので、第1のカメ
ラ(15)は第1の被写体(20a) を第2のカメラ
(16)は第2の被写体(20b)  を、第3のカメ
ラ(17)は第3の被写体(20C)  を、第nのカ
メラ(18)は第nの被写体(21)n) を撮像して
いるとすれば表示装置(4)は1台であっても液晶眼鏡
(6a> (6b) (6cン・・・・(6n)を掛け
ている人々は夫々第1〜第nの被写体(20a)(20
b) (20c) ・・−(2On)  の1つの被写
体だけが視えて、他人の手の内を視ることの出来ない表
示装置が得られる。
FIG. 4 shows still another embodiment of the display device of the present invention. Figure 4 shows the configuration between Figure 3 and the road.
In the case of the figure, the first to nth signal generators (10a) (
10b) (10c) = = (10n> (1st to nth cameras of the imaging layer instead of D (15) (16)
(17) (18) is provided, and the object (20) is imaged by a plurality of cameras. For example, this device is designed so that other players playing mahjong, poker, etc. cannot see the inside of their hands on even one display, and the first camera (15) is able to display the first subject (20a) on the second display. The camera (16) captures the second subject (20b), the third camera (17) captures the third subject (20C), and the n-th camera (18) captures the n-th subject (21)n). If an image is being taken, even if there is only one display device (4), people wearing liquid crystal glasses (6a> (6b) (6cn... (6n)) Subject (20a) (20
b) (20c) . . . -(2On) A display device is obtained in which only one subject can be seen and the inside of another person's hand cannot be seen.

上述の各実施例に示した様に本発明によれば特定の人だ
けが秘匿性を必要とする映像を視ることが出来る表示装
置が得られる。更に1台の表示装置を用いて複数の人々
が異なった画像を視ることの出来る表示装置を得られる
As shown in the embodiments described above, the present invention provides a display device that allows only a specific person to view images that require confidentiality. Furthermore, a display device can be obtained that allows a plurality of people to view different images using one display device.

尚、本発明は叙上の各実施例で限定されることなく、本
発明の要旨を逸脱しない範囲で種々変更し得ることは明
白である。
It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is obvious that various changes can be made without departing from the gist of the present invention.

〔発明の効果〕〔Effect of the invention〕

本発明の表示装置によればバーンナルコンピュータ等の
表示部に表示された情報内容が第3者に解らない様にし
たものが得られ、更に1台の表示装置で複数の人々が異
なった画像を視ることの出来るものが得られる。
According to the display device of the present invention, information displayed on the display unit of a burner computer or the like can be prevented from being understood by a third party, and furthermore, a single display device can display different images for a plurality of people. You can get something that allows you to see.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の表示装置の〜実施例を示す構成図、第
2図は第1図の動作説明図のデータa力を示す図、第3
図及び第4図は本発明の表示装置の他の実施例を示す構
成図、第5図は従来の表示装置の構成図である。 (4)は表示装置、(6)は液晶眼鏡、(8)は液晶板
、(7)(9)は偏光板、(10)は信号発生器、(1
1)は擬似信号発生器、(12)は制御信号発生器、(
13)はマルチプレクサである。
FIG. 1 is a configuration diagram showing an embodiment of the display device of the present invention, FIG. 2 is a diagram showing the data a power of the operation explanatory diagram of FIG.
4 and 4 are block diagrams showing other embodiments of the display device of the present invention, and FIG. 5 is a block diagram of a conventional display device. (4) is a display device, (6) is liquid crystal glasses, (8) is a liquid crystal plate, (7) and (9) are polarizing plates, (10) is a signal generator, (1
1) is a pseudo signal generator, (12) is a control signal generator, (
13) is a multiplexer.

Claims (1)

【特許請求の範囲】 複数の映像信号を時分割変換手段を介して表示手段に表
示させると共に遮蔽手段を介して、該表示手段に表示さ
れる映像信号を視る様に成した表示装置に於いて、 上記遮蔽手段が開かれている時のみ必要な時分割した第
1の映像信号の情報を表示し、該遮蔽手段が閉じられて
いる時は不必要な時分割した第2の映像信号の情報を遮
蔽する様に表示し、上記遮蔽手段を介さずに上記表示手
段の表示内容を視たときは必要な時分割した第1の映像
信号の映像を認識し得ない様に表示して成ることを特徴
とする表示装置。
[Scope of Claims] A display device configured to display a plurality of video signals on a display means through a time division conversion means and to view the video signals displayed on the display means through a shielding means. The information of the necessary time-divided first video signal is displayed only when the shielding means is open, and the information of the unnecessary time-divided second video signal is displayed when the shielding means is closed. The information is displayed in such a manner as to be shielded, and the information is displayed in such a way that when the displayed content of the display means is viewed without passing through the shielding means, the necessary time-divided image of the first video signal cannot be recognized. A display device characterized by:
JP2154711A 1990-06-13 1990-06-13 Display device Pending JPH0446387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2154711A JPH0446387A (en) 1990-06-13 1990-06-13 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2154711A JPH0446387A (en) 1990-06-13 1990-06-13 Display device

Publications (1)

Publication Number Publication Date
JPH0446387A true JPH0446387A (en) 1992-02-17

Family

ID=15590290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2154711A Pending JPH0446387A (en) 1990-06-13 1990-06-13 Display device

Country Status (1)

Country Link
JP (1) JPH0446387A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261838A (en) * 1993-01-06 1993-11-16 Smk Corporation Automotive cigar lighter plug with stopper
US5263879A (en) * 1992-02-25 1993-11-23 Smk Corporation Automotive cigar lighter plug
JPH06195049A (en) * 1992-04-28 1994-07-15 D T M F Paradaimu Kk Image display device and transmittance controller
KR100405403B1 (en) * 2000-01-12 2003-11-14 인터내셔널 비지네스 머신즈 코포레이션 Method for providing privately viewable data in a publically viewable display
WO2010071193A1 (en) * 2008-12-18 2010-06-24 日本電気株式会社 Display system, control device, display method, and program
WO2012120853A1 (en) * 2011-03-04 2012-09-13 国立大学法人徳島大学 Information providing method and information providing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263879A (en) * 1992-02-25 1993-11-23 Smk Corporation Automotive cigar lighter plug
JPH06195049A (en) * 1992-04-28 1994-07-15 D T M F Paradaimu Kk Image display device and transmittance controller
US5261838A (en) * 1993-01-06 1993-11-16 Smk Corporation Automotive cigar lighter plug with stopper
KR100405403B1 (en) * 2000-01-12 2003-11-14 인터내셔널 비지네스 머신즈 코포레이션 Method for providing privately viewable data in a publically viewable display
WO2010071193A1 (en) * 2008-12-18 2010-06-24 日本電気株式会社 Display system, control device, display method, and program
US8571217B2 (en) 2008-12-18 2013-10-29 Nec Corporation Display system, control apparatus, display method, and program
WO2012120853A1 (en) * 2011-03-04 2012-09-13 国立大学法人徳島大学 Information providing method and information providing device
JPWO2012120853A1 (en) * 2011-03-04 2014-07-17 国立大学法人徳島大学 Information providing method and information providing apparatus
JP2017129865A (en) * 2011-03-04 2017-07-27 国立大学法人宇都宮大学 Information acquisition method and information provision device

Similar Documents

Publication Publication Date Title
KR100353414B1 (en) Method of displaying private data to collocated users
CN105702202B (en) Display panel and its control method, display device, display system
EP0233636B1 (en) Virtual stereographic display system
US3903358A (en) PLZT stereoscopic television system
WO2017128617A1 (en) Display screen, glasses, display system and playing method
CN102187385B (en) Image display system, image control device, method for controlling image and light shutter
CN102523460A (en) Method and system for displaying confidential content through encryption
US20070247392A1 (en) Method for displaying private/secure data
JPH10239641A (en) Polarizing spectacles and image display system
CN105763866A (en) Stereoscopic image display device and driving method thereof
JPH05323267A (en) Liquid crystal display device
KR100728109B1 (en) Stereoscopic display device and driving method thereof
JP3753763B2 (en) Apparatus and method for recognizing 3D image
JPH0446387A (en) Display device
JP4924917B2 (en) Visual control display device and terminal equipped with the same
WO2007043153A9 (en) Liquid crystal image display
JP2000275575A (en) Stereoscopic video display device
JPH08327961A (en) Stereoscopic video display device
Yerazunis et al. Privacy-enhanced displays by time-masking images
JPS63213814A (en) Liquid crystal display device for stereoscopical display
JP5867117B2 (en) Encrypted image recognition system and encrypted image recognition method
KR20010062077A (en) Stereoscopic 3d personal copmputer
CA2264887A1 (en) Method and apparatus for presenting a visual display to an audience
KR101948893B1 (en) Visibility Controllable Display
JPH04355716A (en) Liquid crystal display device and signal input method