JPH0879799A - Stereoscopic display system, and its synchronizing signal transmitter and synchronizing signal receiver - Google Patents
Stereoscopic display system, and its synchronizing signal transmitter and synchronizing signal receiverInfo
- Publication number
- JPH0879799A JPH0879799A JP21031494A JP21031494A JPH0879799A JP H0879799 A JPH0879799 A JP H0879799A JP 21031494 A JP21031494 A JP 21031494A JP 21031494 A JP21031494 A JP 21031494A JP H0879799 A JPH0879799 A JP H0879799A
- Authority
- JP
- Japan
- Prior art keywords
- synchronization signal
- signal
- switching
- shutter
- synchronizing signal
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/008—Aspects relating to glasses for viewing stereoscopic images
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、右目用と左目用の２
次元画像を高速に交互に切り替え表示するとともに、観
察者が装着するシャッタメガネを左右画像の切り替えに
同期して交互にオン・オフ駆動することで立体的な画像
を見る立体視ディスプレイシステム及びこのシステムを
構成する同期信号送信装置と同期信号受信装置に関す
る。BACKGROUND OF THE INVENTION This invention is for two eyes, one for the right eye and one for the left eye.
Stereoscopic display system for displaying stereoscopic images by alternately switching high-dimensional images at high speed and driving shutter glasses worn by an observer alternately on and off in synchronization with switching between left and right images, and this system The present invention relates to a synchronization signal transmitting device and a synchronization signal receiving device that compose the.
【０００２】[0002]
【従来の技術】立体視ディスプレイシステムの１つの方
式としてつぎのシステムがよく知られている。つまり、
右目用と左目用の２次元画像を高速に交互に切り替え表
示する表示制御手段を有し、この表示制御手段から出力
される左右画像の切替同期信号を空間伝送する送信装置
と、この送信装置により空間伝送される前記切替同期信
号を受信し、観察者が装着するシャッタメガネの右目用
シャッタと左目シャッタとを受信した前記切替同期信号
に従って交互にオン・オフ駆動するシャッタ駆動手段を
有する受信装置とを備えるシステムである。2. Description of the Related Art The following system is well known as one type of stereoscopic display system. That is,
A transmission device having a display control means for alternately switching and displaying two-dimensional images for the right eye and the left eye at high speed, and spatially transmitting a switching synchronization signal for the left and right images output from the display control means, and the transmission device. A receiver having shutter drive means for receiving the switching synchronization signal transmitted in space and for alternately driving on / off in accordance with the switching synchronization signal received by a right eye shutter and a left eye shutter of shutter glasses worn by an observer; It is a system equipped with.
【０００３】このように切替同期信号を空間伝送してシ
ャッタメガネ側に伝えるのは、観察者が装着するシャッ
タメガネをコードレスにし、実用性を高めるためであ
る。この種の立体視ディスプレイシステムの従来のもの
では、切替同期信号の空間伝送の媒体としては赤外線が
使われており、切替同期信号の伝送形式としては図５に
示すような赤外線パルス信号が採用されていた。この従
来例では、左目期間の開始タイミングを幅の狭いパルス
信号で指示し、右目区間の開始タイミングを幅の広いパ
ルス信号で指示している。The reason why the switching synchronization signal is spatially transmitted to the shutter glasses side in this way is to make the shutter glasses worn by the observer cordless and to enhance the practicality. In the conventional stereoscopic display system of this type, infrared rays are used as a medium for spatial transmission of the switching sync signal, and an infrared pulse signal as shown in FIG. 5 is adopted as a transmission format of the switching sync signal. Was there. In this conventional example, the start timing of the left eye period is designated by a narrow pulse signal, and the start timing of the right eye section is designated by a wide pulse signal.
【０００４】[0004]
【発明が解決しようとする課題】従来のように左右画像
の切替タイミングを幅の異なる赤外線パルス信号で直接
的に空間伝送する方法では、周囲の雑音にきわめて弱く
サービスエリアが狭いという問題があった。つまり、赤
外線パルスを発生するなんらかの雑音源が周辺に存在す
ると、その雑音が切替同期信号と誤認識されて、不正な
タイミングでシャッタメガネが反転駆動されることが多
くなる。また、ディスプレイ装置本体側の赤外線送信器
と各シャッタメガネ側の赤外線受信器との距離が長くな
ると伝送ミス（受信信号の欠落）が多くなり、正しいタ
イミングでシャッタメガネが反転駆動されなくなる。こ
のような雑音や受信信号の欠落によって生じる誤動作の
影響は、右目用または左目用の画像の１フィールドに及
ぶので、シャッタメガネを通して見る立体画像の品質低
下が激しく、非常に醜い画像になってしまうという問題
があった。However, the conventional method for directly spatially transmitting the switching timing of the left and right images by infrared pulse signals having different widths has a problem that it is extremely vulnerable to ambient noise and the service area is narrow. . That is, if some noise source that generates an infrared pulse exists in the vicinity, the noise is erroneously recognized as a switching synchronization signal, and the shutter glasses are often inverted and driven at an incorrect timing. Further, if the distance between the infrared transmitter on the main body of the display device and the infrared receiver on the side of each of the shutter glasses becomes long, transmission errors (missing of received signal) increase, and the shutter glasses cannot be driven in reverse at the correct timing. The influence of the malfunction caused by the noise and the lack of the received signal extends to one field of the image for the right eye or the image for the left eye, and therefore the quality of the stereoscopic image viewed through the shutter glasses is severely deteriorated, resulting in a very ugly image. There was a problem.
【０００５】この発明は前述した従来の問題点に鑑みて
なされたもので、前記の切替同期信号の空間伝送につい
て、耐雑音性能を高め、サービスエリアを広くし、信号
伝送に起因する誤動作が起きてもシャッタメガネを通し
て見る画像の乱れができるだけ少なくなるようにした立
体視ディスプレイシステム等を提供することにある。The present invention has been made in view of the above-mentioned conventional problems. With respect to the spatial transmission of the switching synchronization signal, the noise resistance is enhanced, the service area is widened, and a malfunction due to the signal transmission occurs. However, it is still another object of the present invention to provide a stereoscopic display system or the like in which the disturbance of an image viewed through the shutter glasses is minimized.
【０００６】[0006]
【課題を解決するための手段】そこで、この発明では、
右目用と左目用の２次元画像を高速に交互に切り替え表
示し、この切り替え表示に同期した切替同期信号を出力
する表示制御手段と、この表示制御手段の切替同期信号
をＦＭ変調するＦＭ変調器とを有し、このＦＭ変調した
切替同期信号を空間伝達する同期信号送信装置と、受信
した切替同期信号をＦＭ復調するＦＭ復調器と、ＦＭ復
調した切替同期信号に従ってシャッタメガネの右目シャ
ッタと左目シャッタとを交互にオン・オフ駆動するシャ
ッタ駆動回路とを有する同期信号受信装置とを備えた立
体視ディスプレイシステムである。なお、空間伝送の媒
体としては赤外線あるいは超音波を使用する。Therefore, according to the present invention,
Display control means for alternately switching and displaying two-dimensional images for the right eye and the left eye at a high speed, and outputting a switching synchronization signal synchronized with the switching display, and an FM modulator for FM-modulating the switching synchronization signal of the display control means. And a FM signal demodulator for FM demodulating the received switching sync signal, and a right eye shutter and a left eye of the shutter glasses according to the FM demodulated switching sync signal. A stereoscopic display system including a synchronization signal receiving device having a shutter drive circuit that alternately turns on and off a shutter. Infrared rays or ultrasonic waves are used as a medium for space transmission.
【０００７】[0007]
【作用】前記切替同期信号は数十〜百ヘルツ程度の低周
波であるが、この切替同期信号で充分高い周波数の搬送
波をＦＭ変調し、赤外線信号あるいは超音波信号の形で
空間伝送する。そうすれば、この伝送路の耐雑音性能が
向上し、従ってサービスエリアが広くなる。また伝送エ
ラーが生じても、表示画像の１フィールド全体にわたっ
て画像が欠落するようなことは稀で、多くの場合は１フ
ィールドの一部が欠落する程度ですむ。The switching sync signal has a low frequency of about several tens to hundreds of hertz, and a carrier wave having a sufficiently high frequency is FM-modulated by this switching sync signal and spatially transmitted in the form of an infrared signal or an ultrasonic signal. Then, the noise resistance performance of this transmission line is improved, and thus the service area is expanded. Further, even if a transmission error occurs, it is rare that the image is lost over the entire field of the display image, and in most cases, only a part of the field is lost.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面を用いて説明す
る。図１にはこの発明の第１実施例による立体視ディス
プレイシステムの概略回路ブロック図が示されている。
図１において、立体視ディスプレイシステムは、装置本
体１に付設された同期信号送信装置Ａとシャッタメガネ
７に付設された同期信号受信装置Ｂとを備えている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic circuit block diagram of a stereoscopic display system according to the first embodiment of the present invention.
In FIG. 1, the stereoscopic display system includes a synchronization signal transmitting device A attached to the device body 1 and a synchronization signal receiving device B attached to the shutter glasses 7.
【０００９】同期信号送信装置Ａ側の装置本体１は、テ
レビモニタなどの２次元ディスプレイ手段に右目用と左
目用の２次元画像を高速に交互に切り替え表示する表示
制御手段を備え、この表示制御手段は切替表示に同期し
た切替同期信号を出力する。図２はこの切替同期信号の
形式の一例を示している。ここでは右目期間と左目期間
“１”と“０”とで表現したデューティ比５０％の矩形
波であるが、切替同期信号の形式はこの例に限定される
ものではなく、電圧値の違いで左右の期間を表現した
り、周波数の違いで左右の期間を表現した信号形式な
ど、さまざまな方式を採用することができる。The apparatus main body 1 on the side of the synchronizing signal transmitting apparatus A is provided with display control means for switching the two-dimensional images for the right eye and the left eye at high speed alternately on a two-dimensional display means such as a television monitor. The means outputs a switching synchronization signal synchronized with the switching display. FIG. 2 shows an example of the format of this switching synchronization signal. Here, the rectangular wave having a duty ratio of 50% represented by the right eye period and the left eye period “1” and “0” is used, but the format of the switching synchronization signal is not limited to this example, and it depends on the voltage value. Various methods such as a signal format in which the left and right periods are expressed and the left and right periods are expressed by the difference in frequency can be adopted.
【００１０】再び、図１に戻り、装置本体１からの切替
同期信号はＦＭ変調器２に入力され、所定の搬送波が切
替同期信号でＦＭ変調される。そのＦＭ信号がＦＭ変調
器２から出力され、電気／光変換器３に入力される。電
気／光変換器３は、赤外線発光ダイオードまたは赤外レ
ーザダイオードなどとその駆動回路とからなるもので、
ＦＭ変調器２からのＦＭ信号に従って出力する赤外線に
強度変調をかける。このように強度変調された赤外線信
号が所定の方向に向かって空間に放射される。Returning to FIG. 1 again, the switching synchronization signal from the apparatus main body 1 is input to the FM modulator 2, and a predetermined carrier wave is FM-modulated by the switching synchronization signal. The FM signal is output from the FM modulator 2 and input to the electrical / optical converter 3. The electric / optical converter 3 includes an infrared light emitting diode or an infrared laser diode and the like, and a drive circuit therefor.
Intensity modulation is applied to the infrared light output according to the FM signal from the FM modulator 2. The infrared signal thus intensity-modulated is radiated into space in a predetermined direction.
【００１１】一方、同期信号受信装置Ｂは上記した電気
／光変換器３から空間放射される赤外線信号を受光し、
電気信号に変換する光／電気変換器４を有し、この光／
電気変換器４は赤外フォトトランジスタなどの受光素子
と受光信号増幅器などから成る。光／電気変換器４の出
力はＦＭ復調器５に入力され、ＦＭ復調器４はその受信
信号を復調して切替同期信号を再生する。On the other hand, the synchronizing signal receiving device B receives the infrared signal spatially radiated from the electric / optical converter 3 described above,
It has an optical / electrical converter 4 for converting into an electric signal,
The electric converter 4 includes a light receiving element such as an infrared phototransistor and a light receiving signal amplifier. The output of the optical / electrical converter 4 is input to the FM demodulator 5, and the FM demodulator 4 demodulates the received signal and reproduces the switching synchronization signal.
【００１２】この再生された切替同期信号はシャッタ駆
動回路６に供給され、シャッタ駆動回路６はこの切替同
期信号に従ってシャッタメガネ７の右目シャッタと左目
シャッタとを交互にオン・オフ駆動する。即ち、装置本
体１における右目用と左目用の画像の切り替え表示に同
期してシャッタメガネ７の右目シャッタと左目シャッタ
が交互にオン・オフ駆動され、これにより立体画像が見
える。The reproduced switching sync signal is supplied to the shutter drive circuit 6, and the shutter drive circuit 6 alternately turns on / off the right eye shutter and the left eye shutter of the shutter glasses 7 in accordance with the switching sync signal. That is, the right eye shutter and the left eye shutter of the shutter glasses 7 are alternately turned on / off in synchronization with the switching display of the images for the right eye and the left eye on the apparatus body 1, whereby a stereoscopic image can be seen.
【００１３】図３にはこの本発明の第２実施例の概略回
路ブロック図が示されている。図３において、この第２
実施例では第１実施例の電気／光変換器３及び光／電気
変換器４の代わりに超音波発生器８及び超音波検出器９
を用いて構成されている。他の構成は第１実施例と同じ
であるため、図面に同一符号を付してその説明を省略す
る。即ち、前記第１実施例においては、切替同期信号の
空間伝送媒体として赤外線を用いたが、この第２実施例
においては、超音波を用いている。尚、可視光線や紫外
線などを用いた空間伝送を採用しても良い。FIG. 3 shows a schematic circuit block diagram of the second embodiment of the present invention. In FIG. 3, this second
In the embodiment, an ultrasonic wave generator 8 and an ultrasonic wave detector 9 are used instead of the electric / optical converter 3 and the optical / electrical converter 4 of the first embodiment.
It is configured using. Since other configurations are the same as those of the first embodiment, the same reference numerals are given to the drawings and the description thereof will be omitted. That is, in the first embodiment, infrared rays are used as the space transmission medium for the switching sync signal, but in the second embodiment, ultrasonic waves are used. Note that space transmission using visible light, ultraviolet light, or the like may be adopted.
【００１４】図４にはこの発明の第３実施例の概略回路
ブロック図が示されている。図４において、この第３実
施例では第１実施例の電気／光変換器３及び光／電気変
換器４の代わりに送信アンテナ１０及び受信アンテナ１
１を用いて構成されている。他の構成は第１実施例と略
同じであるため、図面に同一符号を付してその説明を省
略する。即ち、この第３実施例では切替同期信号の空間
伝送媒体として電波を用いている。FIG. 4 shows a schematic circuit block diagram of a third embodiment of the present invention. 4, in the third embodiment, a transmitting antenna 10 and a receiving antenna 1 are used instead of the electric / optical converter 3 and the optical / electrical converter 4 of the first embodiment.
1 is used. Since other configurations are substantially the same as those of the first embodiment, the same reference numerals are given to the drawings and the description thereof will be omitted. That is, in the third embodiment, radio waves are used as the space transmission medium for the switching sync signal.
【００１５】[0015]
【発明の効果】この発明においては、数十〜百ヘルツ程
度の低周波の切替同期信号で充分高い周波数の搬送波を
ＦＭ変調し、そのＦＭ信号を赤外線信号あるいは超音波
信号に変換して空間伝送する。したがって、この伝送路
の耐雑音性能が従来の方式より大幅に向上し、従ってサ
ービスエリアが広くなる。また伝送エラーが生じても、
表示画像の１フィールド全体にわたって画像が欠落する
ようなことは稀で、多くの場合は１フィールドの一部が
欠落する程度ですむ。According to the present invention, a carrier wave having a sufficiently high frequency is FM-modulated by a low-frequency switching sync signal of about several tens to hundreds of hertz, and the FM signal is converted into an infrared signal or an ultrasonic signal for spatial transmission. To do. Therefore, the noise resistance performance of this transmission line is greatly improved as compared with the conventional method, and the service area is widened accordingly. Even if a transmission error occurs,
It is rare for an image to be lost over the entire field of a display image, and in most cases only a portion of one field will be lost.
【図１】立体視ディスプレイシステムの概略回路ブロッ
ク図（第１実施例）。FIG. 1 is a schematic circuit block diagram of a stereoscopic display system (first embodiment).
【図２】切替同期信号の形式の一例を示す図（第１実施
例）。FIG. 2 is a diagram showing an example of a format of a switching synchronization signal (first embodiment).
【図３】立体視ディスプレイシステムの概略回路ブロッ
ク図（第２実施例）。FIG. 3 is a schematic circuit block diagram of a stereoscopic display system (second embodiment).
【図４】立体視ディスプレイシステムの概略回路ブロッ
ク図（第３実施例）。FIG. 4 is a schematic circuit block diagram of a stereoscopic display system (third embodiment).
【図５】切替同期信号の形式を示す図（従来）。FIG. 5 is a diagram showing a format of a switching synchronization signal (conventional).
１…装置本体（表示制御手段） ２…ＦＭ変調器 ５…ＦＭ復調器 ６…シャッタ駆動回路 ７…シャッタメガネ Ａ…同期信号送信装置 Ｂ…同期信号受信装置 DESCRIPTION OF SYMBOLS 1 ... Device main body (display control means) 2 ... FM modulator 5 ... FM demodulator 6 ... Shutter drive circuit 7 ... Shutter glasses A ... Sync signal transmitter B ... Sync signal receiver
Claims (5)
互に切り替え表示し、この切り替え表示に同期した切替
同期信号を出力する表示制御手段と、 この表示制御手段の切替同期信号をＦＭ変調するＦＭ変
調器とを有し、このＦＭ変調した切替同期信号を空間伝
送する同期信号送信装置と、 受信した切替同期信号をＦＭ復調するＦＭ復調器と、Ｆ
Ｍ復調した切替同期信号に従ってシャッタメガネの右目
シャッタと左目シャッタとを交互にオン・オフ駆動する
シャッタ駆動回路とを有する同期信号受信装置とを備え
たことを特徴とする立体視ディスプレイシステム。1. A display control means for alternately and rapidly displaying a two-dimensional image for the right eye and a two-dimensional image for the left eye, and outputting a switching synchronization signal synchronized with the switching display, and a switching synchronization signal for the display control means is FM. A synchronization signal transmission device that spatially transmits the FM-modulated switching synchronization signal; an FM demodulator that performs FM demodulation of the received switching synchronization signal;
A stereoscopic display system comprising: a synchronization signal receiving device having a shutter drive circuit that alternately turns on and off a right-eye shutter and a left-eye shutter of shutter glasses in accordance with a M-demodulated switching synchronization signal.
互に切り替え表示し、この切り替え表示に同期した切替
同期信号を出力する表示制御手段と、 この表示制御手段の切替同期信号をＦＭ変調するＦＭ変
調器とを有し、このＦＭ変調した切替同期信号を空間伝
送することを特徴とする同期信号送信装置。2. A display control means for alternately and rapidly displaying a two-dimensional image for the right eye and a two-dimensional image for the left eye, and outputting a switching synchronization signal synchronized with the switching display, and a switching synchronization signal of the display control means for FM. A synchronization signal transmitting device, comprising: an FM modulator for modulating, and spatially transmitting the FM-modulated switching synchronization signal.
この受信した切替同期信号をＦＭ復調するＦＭ復調器
と、ＦＭ復調した切替同期信号に従ってシャッタメガネ
の右目シャッタと左目シャッタとを交互にオン・オフ駆
動するシャッタ駆動回路とを有することを特徴とする同
期信号受信装置。3. Receiving a spatially transmitted switching synchronization signal,
An FM demodulator for performing FM demodulation on the received switching synchronization signal, and a shutter drive circuit for alternately turning on / off the right-eye shutter and the left-eye shutter of the shutter glasses according to the FM-demodulated switching synchronization signal. Synchronous signal receiver.
線であることを特徴とする請求項１に記載の立体視ディ
スプレイシステム、又は、請求項２に記載の同期信号送
信装置、又は、請求項３に記載の同期信号受信装置。4. The stereoscopic display system according to claim 1, wherein the medium for spatial transmission of the switching synchronization signal is infrared light, or the synchronization signal transmission device according to claim 2, or Item 5. The synchronization signal receiving device according to item 3.
波であることを特徴とする請求項１に記載の立体視ディ
スプレイシステム、又は、請求項２に記載の同期信号送
信装置、又は、請求項３に記載の同期信号受信装置。5. The stereoscopic display system according to claim 1, wherein the medium for spatial transmission of the switching synchronization signal is an ultrasonic wave, or the synchronization signal transmission device according to claim 2, or The synchronization signal receiving device according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21031494A JPH0879799A (en) | 1994-09-05 | 1994-09-05 | Stereoscopic display system, and its synchronizing signal transmitter and synchronizing signal receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21031494A JPH0879799A (en) | 1994-09-05 | 1994-09-05 | Stereoscopic display system, and its synchronizing signal transmitter and synchronizing signal receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0879799A true JPH0879799A (en) | 1996-03-22 |
Family
ID=16587373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21031494A Pending JPH0879799A (en) | 1994-09-05 | 1994-09-05 | Stereoscopic display system, and its synchronizing signal transmitter and synchronizing signal receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0879799A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445896B1 (en) * | 2002-01-30 | 2004-08-25 | 소프트픽셀(주) | System and method for controlling shutter function of stereographic spectacle by wireless communication |
| KR100723267B1 (en) * | 2006-05-03 | 2007-05-30 | 소프트픽셀(주) | Wireless communication system for use in 3d stereo goggles/glasses and method therefor |
| JP2010062767A (en) * | 2008-09-02 | 2010-03-18 | Sony Corp | System and method for displaying 3d video |
| KR101056182B1 (en) * | 2010-10-06 | 2011-08-10 | 어보브반도체 주식회사 | Synchronizing apparatus and method, shutter glasses and control method thereof |
| JP2011244413A (en) * | 2010-05-13 | 2011-12-01 | Sekonix Co Ltd | Ir receiver, and liquid crystal shutter 3d glasses having the same |
| JP2012060631A (en) * | 2010-09-08 | 2012-03-22 | Samsung Electronics Co Ltd | Display device and its control method, shutter spectacle and its control method, and display system |
| WO2012071073A1 (en) * | 2010-11-23 | 2012-05-31 | Circa3D, Llc | Adaptive 3-d shuttering devices |
| US8830150B2 (en) | 2010-05-28 | 2014-09-09 | Samsung Electronics Co., Ltd. | 3D glasses and a 3D display apparatus |
| US9472094B2 (en) | 2010-02-12 | 2016-10-18 | Panasonic Intellectual Property Mangement Co., Ltd. | Display device, eyeglass device and image system |
| WO2022229210A1 (en) * | 2021-04-28 | 2022-11-03 | Essilor International | Optometric testing device and process |
-
1994
- 1994-09-05 JP JP21031494A patent/JPH0879799A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445896B1 (en) * | 2002-01-30 | 2004-08-25 | 소프트픽셀(주) | System and method for controlling shutter function of stereographic spectacle by wireless communication |
| KR100723267B1 (en) * | 2006-05-03 | 2007-05-30 | 소프트픽셀(주) | Wireless communication system for use in 3d stereo goggles/glasses and method therefor |
| JP2010062767A (en) * | 2008-09-02 | 2010-03-18 | Sony Corp | System and method for displaying 3d video |
| US9472094B2 (en) | 2010-02-12 | 2016-10-18 | Panasonic Intellectual Property Mangement Co., Ltd. | Display device, eyeglass device and image system |
| JP2011244413A (en) * | 2010-05-13 | 2011-12-01 | Sekonix Co Ltd | Ir receiver, and liquid crystal shutter 3d glasses having the same |
| US8830150B2 (en) | 2010-05-28 | 2014-09-09 | Samsung Electronics Co., Ltd. | 3D glasses and a 3D display apparatus |
| JP2012060631A (en) * | 2010-09-08 | 2012-03-22 | Samsung Electronics Co Ltd | Display device and its control method, shutter spectacle and its control method, and display system |
| KR101056182B1 (en) * | 2010-10-06 | 2011-08-10 | 어보브반도체 주식회사 | Synchronizing apparatus and method, shutter glasses and control method thereof |
| WO2012071073A1 (en) * | 2010-11-23 | 2012-05-31 | Circa3D, Llc | Adaptive 3-d shuttering devices |
| US8553072B2 (en) | 2010-11-23 | 2013-10-08 | Circa3D, Llc | Blanking inter-frame transitions of a 3D signal |
| WO2022229210A1 (en) * | 2021-04-28 | 2022-11-03 | Essilor International | Optometric testing device and process |
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