WO2011034497A2

WO2011034497A2 - Shutter glass controller, shutter glass apparatus and display apparatus

Info

Publication number: WO2011034497A2
Application number: PCT/SG2009/000344
Authority: WO
Inventors: Kian Tiong Yeo; Yuan Fuat Chin; Chin Seng Tee; Choon Meng Chan
Original assignee: Tcl Thomson Electronics Singapore Pte Ltd
Priority date: 2009-09-16
Filing date: 2009-09-16
Publication date: 2011-03-24
Also published as: WO2011034497A3

Abstract

Embodiments provide a shutter glass controller (600), which includes an input configured to receive a video frame identification signal (602), and a shutter glass driver (620) configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver (620) is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance which the video frame identification signal (602) such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter i s closed at least during the presentation of a respective first eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

Description

SHUTTER GLASS CONTROLLER , SHUTTER GLASS APPARATUS AND

DISPLAY APPARATUS

Technical Field

[0001] Various embodiments relate generally to a shutter glass controller, a shutter glass apparatus and a display apparatus for stereoscopic three-dimensional view.

Background

[0002] Three-dimensional (3D) vision may be created by presenting two slightly different sets of image frames to a viewer, wherein one set includes left eye frames corresponding to a left eye viewpoint and the other set includes right eye frames corresponding to a right eye viewpoint. When the sequence of image frames are presented such that only the left eye of a viewer can see the left eye frames and only the right eye of the viewer can see the right eye frames, the viewer obtains a vision with depth perception and is able to perceive a 3D image or video.

[0003] One approach in 3D display technologies is to display left eye frames and right eye frames in alternating order on a display, and switch a shutter glass worn by a viewer in synchronization with the alternately displayed image frames.

[0004] For example, the display may output image frames of a 3D movie in the sequence of the first left eye frame, the corresponding first right eye frame, the second left eye frame, the corresponding second right eye frame, and so on. The shutter glass, also referred as liquid crystal (LCD) shutter glass, contains liquid crystal that blocks or passes light through at its left eye portion and right eye portion. The shutter glass is controlled to be open or closed alternately in synchronization with the alternately displayed image frames on the display, such that the left eye glass is open only when the left eye frame is displayed and the right eye glass is open only when the right eye frame is displayed, thereby providing a 3D vision for a viewer.

[0005] When the image frames are displayed on a hold-type display, such as LCD (liquid crystal display), OLED (organic light emitting diode), LED (light emitting diode) and nanotube-based displays, the display of an image frame is usually maintained during an entire frame period. On a hold-type display, e.g. a LCD display which scans sequentially from top to bottom of the screen, a previous image frame may be slowly overwritten by a following image frame from top to bottom. For example, if the previous image is a left eye frame and the successive image is a right eye frame, the right eye of the viewer may see at least part of the previous left eye frame, and vice versa. This blurring of the left eye image with the right eye image is referred to as cross-talk, ghosting effect or cross images, which may cause unpleasant viewing experience and blurring of the viewer's vision.

Summary

[0006] Embodiments provide a shutter glass controller, a shutter glass apparatus and a display apparatus which reduce or eliminate crosstalk for 3D display.

[0007] Embodiments provide a shutter glass controller, which includes an input configured to receive a video frame identification signal, and a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0008] Other embodiments provide a shutter glass apparatus and a display apparatus including a shutter glass controller, and a method for controlling a shutter glass.

Brief Description of the Drawings

[0009] In the drawings, like reference characters generally refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. In the following description, various embodiments of the invention are described with reference to the following drawings, in which:

FIG. 1 shows a block diagram of a conventional television;

FIG. 2 shows a block diagram of a display apparatus in accordance with an embodiment;

FIG. 3 shows a block diagram of a display apparatus in accordance with another embodiment; FIGS. 4A to 4C show sequences of image frames in a display apparatus according to the embodiments;

FIG. 5 shows sequences of image frames in various formats in a display apparatus according to the embodiments;

FIG. 6 shows a shutter glass controller according to an embodiment;

FIG. 7 shows a shutter glass apparatus according to an embodiment;

FIGS. 8A to 8C illustrate shutter glass driving signals generated by a shutter glass controller according to various embodiments;

FIG. 9 illustrates the closing and open of a shutter glass in accordance with an embodiment;

FIG. 10 shows a flowchart illustrating a method for controlling a shutter glass according to an embodiment.

Description

[0010] The following detailed description refers to the accompanying drawings that show, by way of illustration, specific details and embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. The various embodiments are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments. The following detailed description therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims. [0011] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration". Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

[0012] Embodiments provide a shutter glass controller to reduce or eliminate crosstalk between left eye and right eye of a viewer in stereoscopic three-dimensional view.

[0013] The shutter glass controller may include an input configured to receive a video frame identification signal, and a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver may be configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal, such that when a sequence of frames including a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0014] In an embodiment, each eye frame is repeatedly presented at least twice in immediate succession. In other embodiments, each eye frame may be repeatedly presented more than twice in immediate succession.

[0015] In various embodiments, the sequence of frames may be presented in the sequence of left eye frame 1, the repeated left eye frame 1, right eye frame 1, the repeated right eye frame 1, left eye frame 2, the repeated left eye frame 2, right eye frame 2, the repeated left eye frame 2, and so on. The shutter glass driving signal may control the shutter glass such that the right eye portion is closed during the presentation of a respective first right eye frame, i.e. during the presentation of the right eye frame 1 and the right eye frame 2. During the presentation of the right eye frame 1 and the right eye frame 2 on the display, part of the preceding repeated left eye frame 1 and repeated left eye frame 2 may not be completely overwritten and are thus presented on the display as well. By controlling the right eye portion to be closed during the presentation of the right eye frame 1 and the right eye frame 2, the left eye frame 1 and the left eye frame 2 and the crosstalk from the respective preceding left eye frames cannot be seen through the left eye portion. The right eye portion may be open during the presentation of the repeated right eye frame 1 and the repeated right eye frame 2, such that these frames fully refreshed and displayed can be seen through the right eye portion of the shutter glass.

[0016] Accordingly, by generating the shutter glass driving signal to control the right eye portion of the shutter glass to be closed at least during the presentation of a respective first right eye frame, the crosstalk from the preceding left eye frame may be eliminated. The control of the left eye portion of the shutter glass is in a similar manner and achieves the same effect that the presentation of the respective first left eye frame is not seen by the right eye of the viewer. Thus, the shutter glass controller of the above embodiment may reduce or eliminate the crosstalk between the left eye and the right eye of the viewer in accordance with various embodiments.

[0017] In an embodiment, the shutter glass driver may further be configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal, such that the left eye portion of the shutter glass is closed during the presentation of a right eye frame, and the right eye portion of the shutter glass is closed during the presentation of a left eye frame. This may ensure that the left eye of the viewer cannot see the right eye frame and the right eye of the viewer can not see the left eye frame, thus achieving a stereoscopic three-dimensional vision.

[0018] According to an embodiment, the at least one shutter glass driving signal may include a left shutter glass driving signal to effect a control of the left eye portion of the shutter glass, and include a right shutter glass driving signal to effect a control of the right eye portion of the shutter glass.

[0019] In one embodiment, the video frame identification signal is a three- dimensional video frame synchronization signal. The three-dimensional video frame synchronization signal may indicate that the order of a sequence of three-dimensional image frames being presented and/or indicate that the frame change of the sequence of three-dimensional image frames.

[0020] In another embodiment, the video frame identification signal is a VSYNC (vertical synchronization) signal. The VSYNC signal indicates the frame change in synchronization with vertical blanking interval.

[0021] In accordance with the frame change information provided by the video frame identification signal, the at least one shutter glass driving signal is generated to effect the control of the left eye portion and the right eye portion of the shutter glass in

synchronization with the frame change of the three-dimensional video. In an

embodiment, the at least one shutter glass driving signal may include a left eye shutter glass driving signal configured to control the left eye portion of the shutter glass, and may include a right eye shutter glass driving signal configured to control the right eye portion of the shutter glass.

[0022] The shutter glass controller as described in various embodiments may be implemented as a circuit, which may be understood as any kind of a logic implementing entity, which may be hardware, software, firmware, or any combination thereof. In an embodiment, the circuit may be a hard-wired circuit such as e.g. a circuit implemented as an application-specific integrated circuit (ASIC) or a hard-wired logic gate structure, or a programmable logic circuit such as a programmable processor, e.g. implemented as a microprocessor being programmed to provide the respective function of the circuit.

[0023] According to the embodiments, the shutter glass controller may be provided as a stand-alone device, or may be provided in a shutter glass apparatus, or may be provided in a display apparatus.

[0024] Another embodiment provides a shutter glass apparatus, which includes a shutter glass controller and a shutter glass including a left eye portion provided for a left eye of a user and a right eye portion provided for a right eye of the user. The shutter glass controller may include an input configured to receive a video frame identification signal, and a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver may be configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal, such that when a sequence of frames including a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0025] In an embodiment, the left eye portion and the right eye portion of the shutter glass may include glass including liquid crystal to block or pass light through under the control of an electrical signal.

[0026] The shutter glass controller may be a shutter glass controller in accordance with the embodiments described above. In an embodiment, the shutter glass controller may be implemented as one or more chips integrated in, e.g. the frame of the shutter glass apparatus.

[0027] The shutter glass apparatus may further include a receiver circuit configured to receive the video frame identification signal. In an embodiment, the receiver circuit may be configured as a radio receiver. For example, the receiver circuit may be configured as a radio receiver selected from a group consisting of or including infrared wave radio receiver circuit, mobile radio receiver circuit and ad hoc mobile radio communication radio receiver circuit.

[0028] The video frame identification signal received by the receiver circuit may be transmitted from a display apparatus. In an example, the video frame identification signal may be a VSYNC signal transmitted from a television.

[0029] In accordance with the video frame identification signal, the shutter glass driver of the shutter glass controller maybe configured to generate the at least one shutter glass driving signal. In an embodiment, the at least one shutter glass driving signal may be a DC driving signal. The shutter glass apparatus may further include a digital to analog converter to convert the DC driving signal to an AC driving signal to effect the control of the shutter glass.

[0030] The shutter glass apparatus of the embodiments may be a pair of LCD shutter glasses worn by a user when viewing three-dimensional image or video from a display.

[0031] A further embodiment provides a display apparatus, which includes a display controller, a display coupled to the display controller, and a shutter glass controller. The shutter glass controller may be similar to the shutter glass described above, and may include an input configured to receive a video frame identification signal and a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver may be configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal, such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0032] In an embodiment, the display may be configured as a hold-type display. The hold-type display may provide flicker-free quality for presentation of still images.

Examples of the hold-type display may include but are not limited to LCD (liquid crystal display), OLED (organic light emitting diode), LED (light emitting diode) and nanotube- based displays. In an example, the display is an LCD, on which a sequence of left eye frames and a sequence of right eye frames are presented alternately to provide a three- dimensional video.

[0033] In one embodiment, the display may be configured as a display having a refresh rate of at least 100Hz. a another embodiment, the display may be configured as a display having a refresh rate of at least 120Hz. In a further embodiment, the display may be configured as a display having a refresh rate of at least 200Hz. In a still further embodiment, the display may be configured as a display having a refresh rate of at least 240Hz. The display having a higher refresh rate may have faster response time, and thus may be used in a TV, for example. Examples of displays may include a 100Hz display, a 120Hz display, a 200Hz display, a 240Hz display, a 480Hz display, etc.

[0034] According to an embodiment, the display apparatus may further include a motion estimation and motion compensation circuit configured to provide motion estimation and motion compensation in the frames displayed on the display.

[0035] When motion images are displayed on the hold-type display, motion blurring may take place such that the periphery of a moving object may be seen to be blurred. As the motion blurring occurs during the transition from one state to another, the motion estimation and motion compensation circuit may reduce the motion blurring by generating intermediate frames using motion estimation and motion compensation technique and thus increasing the refresh rate of the display. Accordingly, the motion estimation and motion compensation circuit may help to smooth out the transition of motion images and reduce the motion blurring perceived by a user.

[0036] In an embodiment, during the operation of the shutter glass driver as described above, the motion estimation and motion compensation circuit may be configured to be switched off. In an illustrative example, when the motion estimation and motion compensation circuit is switched off, frame interpolation between the alternately generated left eye frames and right eye frames is not performed. The display controller of the display apparatus may be configured to repeat the left eye frames and the right eye frames, such that each eye frame is repeatedly presented at least twice in immediate succession, as will be described in more detail below.

[0037] A further embodiment provides a method for controlling a shutter glass. The method includes receiving a video frame identification signal and generating at least one shutter glass driving signal to drive the shutter glass. The shutter glass driving signal is generated to effect a control of the shutter glass in accordance with the video frame identification signal, such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0038] FIG. 1 shows a block diagram of a conventional television.

[0039] The television 100 may be a hold-type television, such as a LCD TV. The television 100 includes a front end circuit 102 configured to receive RF signals, demodulate and decode the tuned RF signals, and condition the demodulated and decoded signals for further processing. The front end circuit 102 may include a tuner configured to receive RF signals of a selected channel via an antenna 104, a cable or a satellite dish. The tuner is configured to frequency-shift the received RF signal to an intermediate frequency (IF) signals. The front end circuit 102 may further include an IF processor configured to demodulate and decode the IF signals to produce video and audio signals for further processing.

[0040] The television 100 further includes a TV System-on-a-Chip (SoC) 106 as a central processing circuit, which is configured to provide decoding/encoding functions of input/output sources and to provide quality enhancement of the video/audio signals. The TV SoC 106 may include various interfaces for input/output, signal processors for processing the video and audio signals, and controllers for central processing control of the TV system.

[0041] The TV SoC 106 may include various input ports 108 configured to receive input signals from external sources. Examples of the input ports 108 may include but are not limited to line-in, HDMI (High-Definition Multimedia Interface), DVI (Digital Visual Interface), USB (Universal Serial Bus), LAN (Local Area Network), Component YPbPr and VGA (Video Graphics Array). In an illustrative example, input signals 122 may be three-dimensional video signals including a sequence of left eye frames and right eye frames at a frame rate of 50/60 frames per second, and may be received via the

DVI/HDMI port from an audio/video source, such as set-top boxes, Blu-ray Disc players, personal computers and audio-video receivers. The input signals 122 may also be three- dimensional image/video signals received via Internet in a Internet TV system.

[0042] The TV SoC 106 may also include various output ports (not shown), examples of which include but are not limited to line-out, S/PDIF (Sony/Philips Digital

Interconnect Format). [0043] The TV SoC 106 may be configured to further process the video and audio signals of the input signals received from the front end circuit 102 or the input ports 108.

[0044] The television 100 may include one or more audio amplifiers 110 configured to amplify the audio signals recevied from the TV SoC 106, so as to drive audio output devices, such as loudspeakers and headphone (not shown).

[0045] The TV SoC 106 may be configured to process the video signals, e.g. to decode and quality enhance the video signals to obtain the sequence of left eye frames and right eye frames 124. In one example, the processed video signal may be in a full high definition format, such as 1080p 50/60 Hz (i.e. 1080 lines of vertical resoluation, progressive scan, 50/60Hz in frame rate). The processed video signals including the sequence of left eye frames and right eye frames 124 may be output to a frame rate converter 112, e.g. via LVDS (low-voltage differential signaling).

[0046] The frame rate converter 112 is configured to convert the frame rate of the video signal received from the TV SoC 106 so as to provide a television 100 with a higher refresh rate, in order to eliminate motion blurring effects as seen on a television with a lower refresh rate. In an embodiment, the frame rate converter 112 is configured to increase the frame rate of the video signal for it to be displayed on a display having a high refresh rate. In one example, the frame rate converter 112 is configured to increase the frame rate of the received video signal from 50/60Hz to 100/120Hz, such that the television 100 has a refresh rate of 100/120Hz. In another example, the frame rate converter 112 maybe configured to increase the frame rate of the received video signal from 50760Hz to 2007240Hz, such that the television 100 has a refresh rate of 2007240Hz. In this manner, the motion blurring as seen on a television with lower refresh rate, e.g. 50/60Hz, may be avoided in a television with higher refresh rate.

[0047] The frame rate converter 112 may include a MEMC (motion estimation and motion compensation) circuit to perform the frame rate conversion. The MEMC circuit may be configured to generate interpolated frames from the left eye frames and the right eye frames to increase the frame rate of the video signal, so as to improve motion judder and motion blur. For example, the MEMC circuit may convert and interpolate the frames 124 of 1080p 50/60 frames per second to generate frames 126 of 1080p 100/120 frames per second. The MEMC circuit may also convert the frames 124 of 1080p 50/60 frames per second to generate frames of 1080p 200/240 frames per second in another example.

[0048] The frames 126 output from the frame rate converter 112 may be transmitted to a display 114, e.g. a hold type display panel, to present the images to users.

[0049] In an embodiment, the frame rate converter 112 also output a VSY C signal 120 which indicates the frame change in synchronization with vertical blanking interval for controlling the display of the image frames on the display panel 114.

[0050] The frame rate converter 112 may be implemented as a separate PCB board driving the display panel 114 (e.g. a LCD panel), or may be implemented on a T-con (timing controller) board which reformats the image data to fit the requirements of the row and column drivers used to drive the LCD panel.

[0051] The television 100 further includes a power supply unit 116 configured to receive AC voltage and to convert the received AC voltage to different levels of DC voltages to drive various circuits in the television system 100. [0052] FIG. 2 shows a block diagram of a display apparatus in accordance with an embodiment.

[0053] Similar to the television 100 of FIG.1, the display apparatus 200 includes a front end circuit 202 coupled to receive RF signals via an antenna 204, various input ports such as a DVI/HDMI input port 208 configured to receive input signals 222 from audio/video sources, a TV System-on-a-Chip (SoC) 206 configured to process signals received from the front end circuit 202 or the DVI/HDMI input port 208 to generate processed video signals 224, a display panel 214 for displaying the image frames of the video signal, and a power supply unit 216 configured to convert received AC voltage to different levels of DC voltages to drive various circuits in the display apparatus 200.

[0054] The display apparatus further includes a display controller 212 configured to receive the processed video signals 224 from the TV SoC 206 via LVDS or other types of signaling. In an example, the input signals 222 may be three-dimensional video signals, and the TV SoC 206 may be configured to process (e.g. decode and quality enhance) the received input signals 222 to obtain the processed video signals including a sequence of left eye frames and right eye frames 224. The video signal 224 may be in a full high definition format, e.g.,1080p 50/60 Hz. The display controller 212 may be configured to process the video signal 224 by performing a frame rate conversion.

[0055] The display controller 212 may be a frame rate converter similar to the frame rate converter 112 of FIG. 1. In an embodiment, the display controller 212 is configured to increase the frame rate of the video signal for it to be displayed on a display having a high refresh rate. In one example, the display controller 212 is configured to increase the frame rate of the received video signal 224 from 50/60Hz to 100/120Hz for the video signal 224 to be output to a display having a refresh rate of 100/120Hz. In another implementation, the display controller 212 may be configured to increase the frame rate of the received video signal from 50/60Hz to 200/240Hz for the video signal 224 to be output to a display having a refresh rate of 200/240Hz.

[0056] In one embodiment, the display apparatus 200 may include an MEMC circuit to perform the frame rate conversion. The MEMC circuit may be configured to generate interpolated frames from the left eye frames and the right eye frames to increase the frame rate of the video signal, similar to the MEMC circuit of the television 100. The MEMC circuit may be incorporated in the display controller 212, for example. The switching on/off of the MEMC circuit may be provided as an option of the display apparatus 200 to the user who may choose to select/deselect the MEMC mode.

[0057] In another embodiment, the display controller 212 may be configured to convert the frame rate of the received video signal 224 by performing one or more frame repeat of each image frames. The frame repeat of image frames will be described in more detail in FIGS. 4A to 4C below. This embodiment of frame conversion may be referred to as a graphic mode of the display apparatus 200. When the display controller 212 is configured to repeat the image frames to convert the frame rate of the received video signal 224, the MEMC circuit is disabled or switched off, such that interpolation of the image frames is not carried out. In an embodiment wherein three-dimensional video signals are to be displayed on the display panel 214, the display controller 212 is configured to be work under the graphic mode with the MEMC mode being disabled.

[0058] The display controller 212 may output the image frames 226 being frame repeated to the display 214, e.g. a hold type display panel, to present the images to users. [0059] In an embodiment, the display controller 212 also output a VSYNC signal 220 which indicates the frame change in synchronization with vertical blanking interval for controlling the display of the image frames on the display panel 214.

[0060] According to an embodiment, the VSYNC signal 220 may be transmitted to an external device, such as a shutter glass or a shutter glass controller, to synchronize the operation of the shutter glass with the image frames displayed on the display panel 214. In one example, the VSYNC signal 220 may be transmitted to the external device wirelessly via an emitter 232, such as an infrared (IR) emitter. In another embodiment, the VSYNC signal 220 may be transmitted via wired means 234.

[0061] In the embodiment of FIG. 2, the display apparatus is configured to process the received input signals for display on a display panel, and to output a VSYNC signal to a shutter glass or a shutter glass controller to provide video frame identification information.

[0062] FIG. 3 shows a block diagram of a display apparatus in accordance with another embodiment.

[0063] FIG. 3 shows a display apparatus 300 similar to the display apparatus 200 of FIG.2, including the front end circuit 202, the antenna 204, the DVI/HDMI input port 208, the TV Systen>on-a-Chip (SoC) 206, the display controller 212, the display panel 214, and the power supply unit 216.

[0064] Compared to the display apparatus 200 of FIG. 2, the display apparatus 300 further includes a shutter glass controller 236. The shutter glass controller 236 may include an input configured to receive the VSYNC signal 220 from the display controller 212, and a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driving signal may be transmitted to the shutter glass via wireless or wired transmission.

[0065] In the embodiment of FIG. 3, the shutter glass controller 236 is integrated in the display apparatus 300, such that the generating of the shutter glass driving signal in accordance with the VSYNC signal 220 is carried out at the display apparatus 300. This may help to increase the processing speed and to reduce the size of the shutter glass.

[0066] The display panel 214 in the display apparatus 200, 300 may be a hold-type display, examples of which include but are not limited to LCD (liquid crystal display), OLED (organic light emitting diode), LED (light emitting diode) and nanotube-based displays.

[0067] In an embodiment, the display panel 214 in the display apparatus 200, 300 may be configured as a display having a refresh rate of at least 100Hz. In another embodiment, the display panel 214 may be configured as a display having a refresh rate of at least 120Hz. In a further embodiment, the display panel 214 may be configured as a display having a refresh rate of at least 200Hz. In another embodiment, the display panel 214 may be configured as a display having a refresh rate of at least 240Hz.

[0068] FIGS. 4A to 4C show sequences of image frames in a display apparatus according to various embodiments.

[0069] FIGS. 4A to 4C show sequence of image frames included in the input signal 222, the processed video signal 224, and the output signal 226 being frame repeated in the display apparatus 200, 300 of FIGS. 2 and 3. In these embodiments, the display controller 212 is configured to convert the frame rate of the processed video signal 224 by frame repeating, with the MEMC mode being disabled. [0070] The input signal 222 as shown in FIGS. 4A to 4C is a stereoscopic three- dimensional video signal including left eye frames and right eye frames being alternately generated, which may be received via the DVI/HDMI port 208 of the display apparatus 200, 300. In this illustrative example, the input signal 222 is in a format of 1080p 60Hz and can be in any other suitable format in other embodiments.

[0071] The input signal 222 includes the alternately generated left eye frames and right eye frames 222 as shown in a sequence of LI, Rl, L2, R2 ... L59, R59, L60, R60, wherein L represents left eye frame and R represents right eye frame. After the processing at the TV SoC 206, the processed video signal 224 including the image frames in the sequence of LI, Rl, L2, R2 ... L59, R59, L60, R60 is transmitted to the display controller 212.

[0072] In the embodiment of FIG. 4A, the display controller 212 is configured to perform a frame repeat on each left eye frame and each right eye frame, so as to increase the frame rate of the video signal 224 to 120 frames per seconds. As shown, the frame repeated signal 226 includes image frames in the sequence of LI, LI, Rl, Rl, L2, L2, R2, R2 ... L59, L59, R59, R59, L60, L60, R60, R60. In this example, 60 left eye frames and 60 right eye frames may be displayed in each second for a display apparatus having a refresh rate of 120Hz. Similarly, 50 left eye frames and 50 right eye frames may be displayed in each second for a display apparatus having a refresh rate of 100Hz.

[0073] When the sequence of image frames 226 are output from the display controller 212 and displayed on the display panel 214, a shutter glass may be controlled by the shutter glass controller 236 of the display apparatus 300 such that a left eye portion of the shutter glass is only open during the presentation of the left eye frames and a right eye portion of the shutter glass is only open during the presentation of the right eye frames, thereby achieving a stereoscopic three-dimensional view.

[0074] In an embodiment, a controller shutter glass driving signal generated by the shutter glass controller 236 of the display apparatus 300 or by a shutter glass controller included in the shutter glass may effect a control of the shutter glass such that a left eye portion of the shutter glass is closed during the first frame of LI, L2, ...L60 and a right eye portion of the shutter glass is closed during the first frame of Rl, R2, ... R60. In this manner, the left eye of a user wearing the shutter glass may only see the second frame of LI, L2, ... L60 and the right eye of the user may only see the second frame of Rl, R2, ... R60, thereby eliminating cross-talk between left eye and right eye for stereoscopic three- dimensional view.

[0075] In the embodiment of FIG. 4B, the display controller 212 is configured to perform a frame repeat on each left eye frame and each right eye frame for three times in immediate succession, so as to increase the frame rate of the video signal 224 to 240 frames per seconds. As shown, the frame repeated signal 226 in FIG. 4B includes image frames in the sequence of LI, LI, LI, LI, Rl, Rl, Rl, Rl, ... L60, L60, L60, L60, R60, R60, R60, R60. In this example, 120 left eye frames and 120 right eye frames may be displayed in each second for a display apparatus having a refresh rate of 240Hz.

Similarly, 100 left eye frames and 100 right eye frames may be displayed in each second for a display apparatus having a refresh rate of 200Hz.

[0076] The shutter glass driving signal generated by the shutter glass controller 236 of the display apparatus 300 or by a shutter glass controller included in the shutter glass may effect a control of the shutter glass such that a left eye portion of the shutter glass is closed during at least the first frame of LI , L2, ...L60 and a right eye portion of the shutter glass is closed during at least the first frame of Rl, R2, ... R60. In this manner, the left eye of a user wearing the shutter glass may only see the second, third and fourth frame of LI, L2, ... L60 and the right eye of the user may only see the second, third and fourth frame of Rl, R2, ... R60, thereby eliminating cross-talk between left eye and right eye. In other embodiment, the shutter glass driving signal may effect a control of the shutter glass such that the left eye portion of the shutter glass is closed during the first and the second frames of LI, L2, ...L60 and a right eye portion of the shutter glass is closed during the first and the second frames of Rl, R2, ... R60.

[0077] FIG. 4C shows another embodiment wherein the display controller 212 is configured to perform a frame repeat on each left eye frame and each right eye frame to increase the frame rate of the video signal 224 to 240 frames per seconds in a different way from the embodiment of FIG. 4B.

[0078] As shown, the frame repeated signal 226 in FIG. 4C includes image frames in the sequence of LI, LI, Rl, Rl, LI, LI, Rl, Rl, ... L60, L60, R60, R60, L60, L60, R60, R60. In an example, 120 left eye frames and 120 right eye frames may be displayed in each second for a display apparatus having a refresh rate of 240Hz.

[0079] The shutter glass driving signal generated by the shutter glass controller 236 of the display apparatus 300 or by a shutter glass controller included in the shutter glass may effect a control of the shutter glass such that a left eye portion of the shutter glass is closed during the first frame of LI, L2, ...L60 and a right eye portion of the shutter glass is closed during at least the first frame of Rl , R2, ... R60. In this manner, the left eye of a user wearing the shutter glass may only see the second frame of LI, L2, ... L60 and the right eye of the user may only see the second frame of Rl, R2, ... R60, thereby eliminating cross-talk between left eye and right eye.

[0080] The sequence of three-dimensional image frames received by the display apparatus 200, 300 may be in various formats, e.g. in accordance with various three- dimensional data standards adopted by the content provider.

[0081] FIG. 5 shows sequences of image frames in various formats in a display apparatus according to various embodiments.

[0082] The input signals 222 including image frames such as frame 1 and frame 2 may be received by the TV SoC 206 via a DVI/HDMI input port. The TV SoC 206 is configured to process the received input signals 222 and generate a sequence of image frames 224 in accordance with the data format/standard of the received input signals 222.

[0083] In this illustrative example, the sequence of image frames 224 are in a full high definition format, such as 1080p 60Hz with a frame resolution of 1920x1080.

[0084] In an embodiment, the sequence of image frames 224 may be in a format such that each frame of the sequence of image frames may include a half left eye frame part and a half right eye frame part. In one embodiment, each half left right eye frame part includes 960x1080 pixels as shown in the sequence of image frames 221. In another embodiment, each half left/right eye frame part includes 1920x540 pixels as shown in the sequence of image frames 223.

[0085] The display controller 212 receiving the sequence of image frames 221, 223 may include a format converter 511, wherein the format converter 511 is configured to convert the frames 221,223 including the half left eye frame part and the half right eye frame part into full left eye frames and full right eye frames 227. The frames 227 include full left eye frames and full right eye frames, which are further processed by the display controller 212 for frame rate conversion, for example.

[0086] In another embodiment, the sequence of image frames 224 may be in a format such that each frame of the sequence of image frames maybe a full left eye frame or a full right eye frame. In this example, each full left/right eye frame includes 1920x1080 pixels as shown in the sequence of image frames 225. In this embodiment, the image frames 225 does not need to be converted by the format converter 511 and are directly processed by the display controller 212 for frame rate conversion.

[0087] The generated sequence of full left eye frames and full right eye frames 227 are processed by the display controller 212 to perform a frame rate conversion similar to the embodiments described in FIGS. 4A to 4C above. In an embodiment as shown in FIG. 5, the display controller 212 is configured to repeat each left eye frame and each right eye frame to generate a sequence of image frames 226, which is then output to the display panel 214 for display.

[0088] It is noticed that the image formats shown as 221, 223, 225 above are only for illustrative purpose, and various formats for three-dimensional image may be processed by the TV Soc 206 and the display controller 212 in accordance with various

embodiments.

[0089] The shutter glass controller in the embodiments above is described in detail below.

[0090] FIG. 6 shows a shutter glass controller according to an embodiment.

[0091] The shutter glass controller 600 includes a receiver 610 configured to receive a video frame identification signal 602. The receiver 610 maybe a radio receiver, such as an infrared (IR) wave radio receiver, a mobile radio receiver, or an ad hoc mobile radio communication radio receiver, to receive the video frame identification signal 602 via a wireless link 604. In another embodiment, the video frame identification signal 602 may be directly wired to the shutter glass controller 600 via a wired link 606. In an embodiment, the video frame identification signal 602 may be a three-dimensional video frame synchronization signal indicating the frame change of a three-dimensional video. In another embodiment, the video frame identification signal 602 may be a VSY C signal received from a display apparatus, such as a LCD television.

[0092] The shutter glass controller 600 may further include a shutter glass driver 620 configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver 620 is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal 602, such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[0093] The shutter glass controller 600 may be a stand-alone controller, and the shutter glass driving signal may be transmitted to the shutter glass via wireless or wired communication to effect the control o fthe shutter glass. In another embodiment, the shutter glass controller 600 maybe the shutter glass controller 236 included in the display apparatus 300 of FIG. 3. In a further embodiment, the shutter glass controller 600 may be included in the shutter glass as described below.

[0094] FIG. 7 shows a shutter glass apparatus according to an embodiment.

[0095] The shutter glass apparatus 700 includes a shutter glass controller similar to the shutter glass controller 600 of FIG. 6, including the receiver 610 configured to receive the video frame identification signal 602 via the wireless link 604 and including the shutter glass driver 620 configured to generate at least one shutter glass driving signal to drive a shutter glass. The shutter glass driver 620 may be configured to receive the video frame identification signal 602 via the wired link 606 in another embodiment. The shutter glass driver 620 is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal 602, similar to the embodiments described above.

[0096] The shutter glass apparatus 700 further includes a shutter glass 740 and an interface circuit 730 configured to interface the shutter glass driver 620 to the shutter glass 740.

[0097] The interface circuit 730 may be configured to convert the shutter glass driving signal generated by the shutter glass driver 620 to be a driving signal suitable for the control/driving of the shutter glass 740. For example, the interface circuit 730 may be configured to convert the DC shutter glass driving signal generated by the shutter glass driver 620 to be an AC shutter glass driving signal in order to drive the shutter glass 740. In another example, the interface circuit 730 may be configured to convert the shutter glass driving signal generated by the shutter glass driver 620 to a different voltage level in order for it to effect the control/driving of the shutter glass 750. An example of the interface circuit 730 may be a RS232 multi-channel driver/receiver.

[0098] The shutter glass apparatus 700 further includes a battery 750, such as a 3.6V Lithium polymer rechargable battery, to power the respective component/circuit of the shutter glass apparatus 700.

[0099] The shutter glass 740 may include a left eye portion and a right eye portion, which are arranged in a frame as shown in FIG. 7 to be worn by a user. The respective component/circuit, such as the receiver 610, the shutter glass driver 620, the interface circuit 730 and the battery 750, may be arranged at the periphery of the frame of the shutter glass 740, or may be arranged externally to the shutter glass 740 and connected to the shutter glass 740 via wired or wireless communication.

[00100] The controlling of the shutter glass by the shutter glass controller in accordance with various embodiments is described below.

[00101] FIGS. 8A to 8C illustrate shutter glass driving signals generated by a shutter glass controller according to various embodiments.

[00102] In the embodiments of FIGS. 8A to 8C, the video frame identification signal is a VSYNC signal received from a display apparatus, such as a LCD television. The shutter glass driver of the shutter glass controller is configured to generate a left shutter glass driving signal and a right shutter glass driving signal to respectively effect the control of the left eye portion and the right eye portion of the shutter glass.

[00103] In FIG. 8A, the VSYNC signal is a 120Hz signal received from a 120Hz LCD television which performs a frame repeat of each left eye frame and each right eye frame to generate a sequence of image frames 226 of FIG. 4A. The VSYNC signal may indicate the frame change of the sequece of frame images. For example, each high level of the VSYNC signal indicates that the frame being displayed is to be changed to a successive image frame. In the embodiment of FIG. 8 A, the VSYNC signal may indicate the change of the image frames displayed in the sequence of LI, LI, Rl, Rl, L2, L2, R2, R2, ... L60, L60, R60, R60 on the display apparatus. As the VSYNC signal has a frequency of 120Hz in this example, image frame being displayed may be changed about every 8.33ms.

[00104] The left shutter glass driving signal and the right shutter glass driving signal may be generated in accordance with the VSYNC signal, in synchronization with the change of the frames being displayed on the display apparatus. In this illustrative example, the left eye portion and the right eye portion of the shutter glass maybe controlled to be closed if the left shutter glass driving signal and the right shutter glass driving signal have a positive or negative voltage (±V), and the left eye portion and the right eye portion of the shutter glass may be controlled to be open if the left shutter glass driving signal and the right shutter glass driving signal have a voltage of 0V.

[00105] For example, during the presentation of the first frame of L2 being presented twice in immediate succession, the left shutter glass driving signal is generated with a negative voltage, which effects a control of the shutter glass such that the left eye portion of the shutter glass is closed. At the next rising edge of the VSYNC signal which indicates that the second frame of the repeatedly presented L2 is to be presented, the left shutter glass driving signal is generated with a 0V voltage, which effects a control of the shutter glass such that the left eye portion of the shutter glass is open. In this manner, the left shutter glass driving signal may effect the control of the shutter glass such that the left eye of the user can not see the first frame of the left eye frames being repeatedly presented, thereby avoiding the crosstalk from the preceding right eye frame, in this example, Rl.

[00106] Similarly, the right shutter glass driving signal is generated with a negative voltage during the presentation of the first frame of R2 and with a voltage of 0V during the presentation of the second frame of R2. In this manner, the right eye of the user could only see the second frame of R2, thereby avoiding the crosstalk from the preceding left eye frame, in this example, L2.

[00107] In accordance with the left shutter glass driving signal and the right shutter glass driving signal of this embodiment, the left eye portion of the shutter glass is always closed during the first frame of the left eye frames and the right eye portion of the shutter glass is always closed during the first frame of the right eye frames. The crosstalk between left eye frames and right eye frames can thus be eliminated.

[00108] As shown in FIG. 8A, the left shutter glass driving signal has a positive or negative voltage when the VSYNC signal indicates the presentation of right eye frames, and the right shutter glass driving signal has a positive or negative voltage when the VSYNC signal incidates the presentation of left eye frames. This may control the shutter glass so that the left eye portion of the shutter glass is closed during the presentation of the right eye frames and the right eye portion of the shutter glass is closed during the presentation of the left eye frames. Thus, the left eye of a user wearing the shutter glass can not only see the right eye frames, and the right eye of the user can not see the left eye frames, in order to achieve a three-dimensional vision. [00109] In FIG. 8B, the VSY C signal is a 240Hz signal received from a 240Hz LCD television which repeats each left eye frame and each right eye frame for three times to generate a sequence of image frames 226 of FIG. 4B. The VSYNC signal may indicate the change of the image frames displayed in the sequence of LI, LI, LI, LI, Rl, Rl, Rl, Rl, L2, L2, L2, L2, R2, R2, R2, R2 ... L60, L60, L60, L60, R60, R60, R60, R60 on the display apparatus. As the VSYNC signal has a frequency of 240Hz in this example, image frame being displayed may be changed about every 4.1ms.

[00110] The left shutter glass driving signal and the right shutter glass driving signal may be generated in accordance with the VSYNC signal, in synchronization with the change of the frames being displayed on the display apparatus.

[00111] As shown in FIG. 8B, during the presentation of the first frame of the left eye frames being repeatedly presented, the left shutter glass driving signal is generated with a positive or negative voltage, which effects a control of the shutter glass such that the left eye portion of the shutter glass is closed. At the succeeding rising edges of the VSYNC signal which indicate that the second, the third and the fourth frames of the repeatedly presented left eye frames are to be presented, the left shutter glass driving signal is generated with a 0V voltage which effects a control of the shutter glass such that the left eye portion of the shutter glass is open. In this manner, the left shutter glass driving signal may effect the control of the shutter glass such that the left eye of the user can not see at least the first frame of the left eye frames being repeatedly presented, thereby avoiding the crosstalk from the preceding right eye frame.

[00112] In other embodiment, the left shutter glass driving signal may be generated such that it has a positive/negative voltage during the presentation of the first and the second left eye frames, so as to control the left eye portion of the shutter glass to be closed during the initial one or more frames of the repeatedly generated left eye frames.

[00113] The right shutter glass driving signal is generated similarly to have a positive/negative voltage at least during the presentation of the first frame of the right eye frames, so as to control the right eye portion of the shutter glass to be closed during the initial one or more frames of the repeatedly generated right eye frames

[00114] The left shutter glass driving signal is generated such that it has a positive or negative voltage when the VSYNC signal indicates the presentation of right eye frames, and the right shutter glass driving signal is generated such that it has a positive or negative voltage when the VSYNC signal incidates the presentation of left eye frames. Thus, the left eye portion of the shutter glass is closed during the presentation of the right eye frames and the right eye portion of the shutter glass is closed during the presentation of the left eye frames, in order to achieve a three-dimensional vision for a user.

[00115] FIG. 8C shows another embodiment, wherein the VSYNC signal is a 240Hz signal received from a 240Hz LCD television which repeats each left eye frame and each right eye frame to generate a sequence of image frames 226 of FIG. 4C. The VSYNC signal may indicate the change of the image frames displayed in the sequence of LI, LI, Rl, Rl, LI, LI, Rl, Rl, L2, L2, R2, R2, L2, L2, R2, R2 ... L60, L60, R60, R60, L60, L60, R60, R60 on the display apparatus. As the VSYNC signal has a frequency of 240Hz in this example, image frame being displayed maybe changed about every 4.1ms.

[00116] The left shutter glass driving signal and the right shutter glass driving signal are generated in accordance with the VSYNC signal, similar to the embodiments above. [00117] As shown in FIG. 8C, during the presentation of the first frame of the left eye frame being repeatedly presented, the left shutter glass driving signal is generated to always have a positive or negative voltage, which effects a control of the shutter glass such that the left eye portion of the shutter glass is closed. During the presentation of the second frame of the left eye frame being repeatedly presented, the left shutter glass driving signal is generated with a 0V voltage which effects a control of the shutter glass such that the left eye portion of the shutter glass is open. In this manner, the left shutter glass driving signal may effect the control of the shutter glass such that the left eye of the user can not see the first frame of the left eye frames being repeatedly presented, thereby avoiding the crosstalk from the preceding right eye frame.

[00118] The left shutter glass driving signal is also generated such that it has a positive or negative voltage when the VSYNC signal indicates the presentation of right eye frames, thus controlling the left eye portion of the shutter glass to be closed during the presentation of the right eye frames to achieve a three-dimensional vision for a user.

[00119] The right shutter glass driving signal may be geneated in accordance with the VSYNC signal in a similar way as the left shutter glass driving signal described above.

[00120] In the embodiments of FIGS. 8A to 8C above, the left shutter glass driving signal and the right shutter glass driving signal are generated such that they effect the closing of the left eye portion and the right eye portion of the shutter glass during the transition of frames, i.e. transition from left eye frame to right eye frame and transition from right eye frame to left eye frame. In other words, during the transition between left eye frame and right eye frame, both the left eye portion and the right eye portion of the shutter glass are controlled to be closed, so as to eliminate any crosstalk when the previous left or right frame are slowly overwritten by the transition first right or left frame on a hold-type display.

[00121] FIG. 9 illustrates the closing and open of a shutter glass in accordance with an embodiment.

[00122] In FIG. 9, three sequences of image frames according to FIGS. 8A to 8C are presented, respectively.

[00123] As shown, the left eye portion and the right eye portion of the shutter glass are both closed at least during the presentation of the transition frame, i.e. the first frame of the repeatedly presented left/right eye frames, to eliminate the crosstalk from the previous frame.

[00124] The left eye portion of the shutter glass is open only during the presentation of the remaining frame(s) of the repeatedly presented left eye frames, and the right eye portion of the shutter glass is open only during the presentation of the remaining frame(s) of the repeatedly presented right eye frames, thereby achieving a three-dimensional vision with reduced or eliminated crosstalk.

[00125] FIG. 10 shows a flowchart illustrating a method for controlling a shutter glass according to an embodiment.

[00126] At 1002, a video frame identification signal is received.

[00127] At 1004, at least one shutter glass driving signal is generated to drive the shutter glass such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal, such that when a sequence of frames including a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

[00128] Various embodiments described above provide a shutter glass controller, a shutter glass apparatus, a display apparatus and a method for controlling a shutter glass, which control a shutter glass during the transition frame between left eye frames and right eye frames and reduce/eliminate crosstalk between left eye and right eye of a user when a three-dimensional image/video is displayed. In addition, the various embodiments described above provide a controller/apparatus and a method to reduce/eliminate crosstalk in an easy and cost effective manner, without requirements on additional electronics/circuits.

[00129] While the invention has been particularly shown and described with reference to specific embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is thus indicated by the appended claims and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced.

Claims

Claims What is claimed is:

1. A shutter glass controller, comprising:

an input configured to receive a video frame identification signal; and

a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass;

wherein the shutter glass driver is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

2. The shutter glass controller as claimed in claim 1,

wherein the shutter glass driver is further configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal such that the left eye portion of the shutter glass is closed during the presentation of a right eye frame, and the right eye portion of the shutter glass is closed during the presentation of a left eye frame.

3. The shutter glass controller as claimed in claim 1,

wherein the video frame identification signal is a three-dimensional video frame synchronization signal.

4. The shutter glass controller as claimed in claim 3,

wherein the video frame synchronization signal is a VSYNC signal.

5. A shutter glass apparatus, comprising:

a shutter glass controller; and

a shutter glass comprising a left eye portion provided for a left eye of a user and a right eye portion provided for a right eye of the user;

wherein the shutter glass controller comprises:

an input configured to receive a video frame identification signal;

6. The shutter glass apparatus as claimed in claim 5, further comprising:

a receiver circuit configured to receive the video frame identification signal.

7. The shutter glass apparatus as claimed in claim 6,

wherein the receiver circuit is configured as a radio receiver.

8. The shutter glass apparatus as claimed in claim 7,

wherein the receiver circuit is configured as a radio receiver selected from a group consisting of:

infrared wave radio receiver circuit;

mobile radio receiver circuit;

ad hoc mobile radio communication radio receiver circuit.

9. A display apparatus, comprising:

a display controller;

a display coupled to the display controller;

a shutter glass controller, comprising:

an input configured to receive a video frame identification signal;

a shutter glass driver configured to generate at least one shutter glass driving signal to drive a shutter glass; wherein the shutter glass driver is configured such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.

10. The display apparatus as claimed in claim 9,

wherein the display is configured as a hold-type display.

11. The display apparatus as claimed in claim 10,

wherein the hold-type display is a Liquid Crystal Display.

12. The display apparatus as claimed in claim 9,

wherein the display is configured as a display having a refresh rate of at least 100 Hz.

13. The display apparatus as claimed in claim 12,

wherein the display is configured as a display having a refresh rate of at least 120 Hz.

14. The display apparatus as claimed in claim 13,

wherein the display is configured as a display having a refresh rate of at least 200 Hz.

15. The display apparatus as claimed in claim 14,

wherein the display is configured as a display having a refresh rate of at least 240 Hz.

16. The display apparatus as claimed in claim 9, further comprising:

a motion estimation and motion compensation circuit configured to provide motion estimation and motion compensation in the frames displayed on the display.

17. The display apparatus as claimed in claim 16,

wherein the motion estimation and motion compensation circuit is configured to be switched off during the operation of the shutter glass driver as claimed in claim 9.

18. A method for controlling a shutter glass, the method comprising:

receiving a video frame identification signal; and

generating at least one shutter glass driving signal to drive the shutter glass such that the shutter glass driving signal effects a control of the shutter glass in accordance with the video frame identification signal such that when a sequence of frames comprising a sequence of left eye frames and a sequence of right eye frames being alternately generated are presented, wherein each eye frame is repeatedly presented at least twice in immediate succession, a left eye portion of the shutter glass is closed at least during the presentation of a respective first left eye frame, and a right eye portion of the shutter glass is closed at least during the presentation of a respective first right eye frame.