WO2016101290A1 - 改善三维影像串扰的显示设备和显示方法 - Google Patents

改善三维影像串扰的显示设备和显示方法 Download PDF

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Publication number
WO2016101290A1
WO2016101290A1 PCT/CN2014/095277 CN2014095277W WO2016101290A1 WO 2016101290 A1 WO2016101290 A1 WO 2016101290A1 CN 2014095277 W CN2014095277 W CN 2014095277W WO 2016101290 A1 WO2016101290 A1 WO 2016101290A1
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WIPO (PCT)
Prior art keywords
display area
light source
source group
display
light
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PCT/CN2014/095277
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English (en)
French (fr)
Inventor
廖巧生
杨智名
Original Assignee
深圳市华星光电技术有限公司
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Priority to US14/416,519 priority Critical patent/US9460668B2/en
Publication of WO2016101290A1 publication Critical patent/WO2016101290A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • H04N13/315—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers the parallax barriers being time-variant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display

Definitions

  • the present invention relates to a display device and a display method for displaying a three-dimensional image, and more particularly to a display device and a display method capable of improving image crosstalk.
  • the human brain further forms a so-called 3D (3-dimension) image based on the spatial distance difference between the two different perspectives seen by both eyes.
  • the so-called 3D display device is a display device that simulates the field of view of different angles of human eyes, and enables the user to perceive as a 3D image when viewing a 2D display image.
  • stereoscopic display technology is mainly divided into two types: glasses type and naked eye type.
  • the glasses-type stereoscopic display technology usually requires the user to wear special glasses to view the stereoscopic image, which not only requires the user to spend extra money to purchase the glasses, but also wears the glasses to affect the comfort of the user, and for promoting the popularity of the stereoscopic display, Glasses are undoubtedly a major obstacle.
  • the naked-eye stereoscopic display technology is free from the constraints of glasses, and allows users to view stereoscopic images without additional equipment, so it is more popular with users and businesses.
  • FIG. 1 is a schematic diagram showing the display state of each pixel when the conventional naked-eye stereoscopic display device 10 is displayed.
  • the display device 10 includes a liquid crystal panel 12 and a grating sheet 14.
  • the liquid crystal panel 12 includes a matrix of pixels.
  • a stripe-shaped light-transmitting stripe 14a and a light-blocking stripe 14b are formed on the grating sheet 14.
  • the interval between the light-transmitting stripe 14a and the light-blocking stripe 14b is set corresponding to the arrangement of the left-eye pixel and the right-eye pixel.
  • the left-eye image and the right-eye image are separated left and right by the above-described lenticular sheet 14, and the separated images are respectively reflected into the viewer's left eye L and right eye R.
  • the pixels of the odd column display the image according to the left eye signal
  • the pixels of the even column display the image according to the right eye signal
  • the signal received by the pixel is in the LR mode.
  • the pixels of the odd column display the image according to the right eye signal
  • the pixels of the even column display the image according to the left eye signal, and the signal received by the pixel is in the RL mode.
  • the liquid crystal panel 12 Since the liquid crystal panel 12 is scanned in a row and a row, when the screen of the liquid crystal panel 12 is half-updated, the number of rows and the lower half of the left and right eye signals are different in the upper half of the liquid crystal panel 12.
  • the signal received by the pixels in the upper half of the liquid crystal panel 12 is in the RL mode, but the signal received by the pixels in the lower half is in the LR mode.
  • the grating piece 14 as a parallax barrier is actuated together, the signal finally received by the human eye is mixed with the left and right eye signals. This will result in crosstalk, and the size of the image crosstalk directly affects the effect of viewing 3D.
  • the display panel sweeps through a display area, the corresponding light source group emits light, and the light source group corresponding to the display area that has not been scanned does not emit light.
  • the problem of 3D image crosstalk can be improved to improve the quality of the displayed 3D image.
  • a display device for displaying a three-dimensional image includes a backlight module including a first light source group and a second light source group for generating light, and a display unit region including a first display area and a second display area.
  • the first display area is overlapped with the illumination range of the first light source group
  • the second display area is overlapped with the illumination range of the second light source group.
  • the first display area When the first display area is scanned, so that the first display area receives the current frame image signal, but the second display area receives the previous frame image signal, the first light source group generates light, the first The second display area does not emit light, and the first display area displays the current frame image according to the current frame image signal and the light generated by the first light source group, and the second display area is not illuminated by the second light source group.
  • the previous frame image is not displayed.
  • the first display area and the second display area are scanned such that the first display area and the second display area receive the current frame image signal
  • the first light source group and the first The two light source groups generate light
  • the first display area and the second display area display the current frame image according to the current frame image signal and the light generated by the first light source group and the second light source group.
  • the first display area and the second display area are both one-half of the display unit area.
  • the first light source group and the second light source group have a light emitting range of one-half of the display unit area.
  • the display unit area further includes a third display area, when the first display area is scanned, the first display area receives the current frame image signal, but the second display area And the third display area receives the image signal of the previous frame, the first light source group generates light, the second light source group does not emit light, and the first display area is according to the current frame image signal and the first The light generated by the light source group displays the current frame image, and the second display area and the third display area do not display the previous frame image because the second light source group does not emit light.
  • the first display area and the second display area When the first display area and the second display area are scanned, the first display area and the second display area receive a current frame image signal, but the third display area receives a previous frame image signal
  • the first light source group generates light
  • the second light source group does not emit light
  • the first display area and the second display area are light according to the current frame image signal and the first light source group.
  • the current frame image is displayed, and the third display area does not display the previous frame image because the second light source group does not emit light.
  • the first display area, the second display area, and the third display area are scanned, the first display area, the second display area, and the third display area are received by the current frame And the first light source group and the second light source group generate light, and the first display area, the second display area, and the third display area are according to the current frame image signal and the Light rays generated by the first light source group and the second light source group display the current frame image.
  • the first display area, the second display area and the third display area are all one third of the display unit area.
  • the present invention also discloses a method for displaying a three-dimensional image by using a display device, the display device comprising a display unit area and a backlight module, the display unit area comprising a first display area and a second display area, the backlight module comprising the first a light source group and a second light source group, the method comprising: when the first display area is scanned, so that the first display area receives a current frame image signal, but the second display area receives a previous frame image signal The first light source group generates light, the second light source group does not emit light, and the first display area displays a current frame image according to the current frame image signal and the light generated by the first light source group, the first The two display areas do not display the previous frame image because the second light source group does not emit light.
  • the first display area and the second display area are scanned such that the first display area and the second display area receive the current frame image signal
  • the first light source group and the first The two light source groups generate light
  • the first display area and the second display area display the current frame image according to the current frame image signal and the light generated by the first light source group and the second light source group.
  • the first display area and the second display area are both one-half of the display unit area.
  • the display unit area further includes a third display area, the method further comprising: when the first display area is scanned, the first display area receives the current frame image signal, but When the second display area and the third display area receive the previous frame image signal, the first light source group generates light, the second light source group does not emit light, and the first display area is according to the current frame.
  • the image signal and the light generated by the first light source group display a current frame image, and the second display area and the third display area do not display the previous frame image because the second light source group does not emit light.
  • the first display area and the second display area When the first display area and the second display area are scanned, the first display area and the second display area receive a current frame image signal, but the third display area receives a previous frame image signal
  • the first light source group generates light
  • the second light source group does not emit light
  • the first display area and the second display area are light according to the current frame image signal and the first light source group. Displaying a current frame image, the third display area not displaying the previous frame image because the second light source group does not emit light
  • the first display area, the second display area, and the third display area are scanned, the first display area, the second display area, and the third display area are received by the current frame And the first light source group and the second light source group generate light, and the first display area, the second display area, and the third display area are according to the current frame image signal and the Light rays generated by the first light source group and the second light source group display the current frame image.
  • the present invention further discloses a display device for displaying a three-dimensional image, comprising a backlight module, comprising n light source groups, each light source group for generating light, n being a positive integer; and a display unit area including n displays The area, each display area is overlapped with the illumination range of one of the light source groups.
  • the first display area to the kth display area When the first display area to the kth display area are scanned, the first display area to the kth display area receive the current frame image signal, but the k+1th display area to the nth display area receive In the previous frame image signal, the first light source group to the kth light source group generate light, and the k+1th light source group to the nth light source group do not emit light, and the first display area to the kth display area are based on The current frame image signal and the light generated by the first light source group to the kth light source group display a current frame image, and the k+1th display area to the nth display area are due to the k+1th The light source group to the nth light source group do not emit light without displaying the previous frame image.
  • the n display areas have equal areas.
  • the display device of the present invention divides the backlight module into a plurality of light source groups, and performs scanning in synchronization with the display panel.
  • the display panel sweeps through a display area
  • the corresponding light source group emits light
  • the light source group corresponding to the display area that has not been scanned does not emit light.
  • the viewer does not see the two frames of images appearing at the same time before the display panel has completely scanned the entire display area, which can improve the problem of 3D image crosstalk to improve the quality of the displayed 3D image.
  • FIG. 1 is a schematic diagram showing a display state of each pixel when a conventional naked-eye stereoscopic display device is displayed.
  • FIG. 2 is a schematic diagram of a stereoscopic image display device for displaying a three-dimensional image according to the present invention.
  • FIG. 3 is a structural view of the grating sheet of FIG. 2.
  • FIG. 4 is a schematic view showing the display unit area, the grating piece, and the backlight module in the first embodiment of the present invention.
  • FIG. 5 is a flow chart of a method for displaying an image of a device according to FIG. 4 according to the present invention.
  • FIG. 6 is a schematic view showing the display unit area, the grating piece, and the backlight module in the second embodiment of the present invention.
  • FIG. 7 is a flow chart of a method for displaying an image of the apparatus according to FIG. 6 according to the present invention.
  • FIG. 8 is a schematic diagram of the display unit area, the grating piece, and the backlight module in the third embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a stereoscopic image display device 100 for displaying a three-dimensional image according to the present invention.
  • the stereoscopic image display device 100 includes a backlight module 102, a controller 104, a first polarizer 130, a display unit region 140, a second polarizer 132, and a lenticular sheet 160.
  • the backlight module 102 is used to generate light, and the light emitting diode (Light) can be used.
  • Array Diode, LED) or cold cathode ray tube as the light source.
  • the display unit area 140 may be a liquid crystal panel for displaying an image, which includes a matrix of pixels composed of a plurality of pixels.
  • the light generated by the backlight module 102 is irradiated to the first polarizer 130. Since the first polarizer 130 has a polarizing axis of about 135° with respect to the observer A side, it has a function of transmitting a polarized-axis light having a viewing angle of about 135° from the observer A side. Unless otherwise specified, the angle of the polarization axis indicates the angle seen by the observer A side. Since the second polarizer 132 has a polarization axis set at about 45° with respect to the observer A side, it has a function of transmitting a polarized light having a viewing angle of about 45° from the observer A side.
  • FIG. 3 is a structural diagram of the grating piece 160 of FIG.
  • the grating sheet 160 includes a first conductive layer 164, a second conductive layer 166, and a twisted nematic unit layer sandwiched between the conductive layers 164, 166 (Twisted) Nematic, TN) 163.
  • the conductive layers 164 and 166 are transparent conductive layers, and the material thereof may be indium tin oxide.
  • the first conductive layer 164 includes a plurality of stripe-shaped first transparent electrodes 164a and second transparent electrodes 164b which are parallel to each other.
  • the first transparent electrode 164a and the second transparent electrode 164b are alternately arranged and correspond to an odd column and an even column pixel of the display cell region 140, respectively.
  • the second conductive layer 166 is coupled to the common voltage terminal Vcom.
  • the twisted nematic cell layer 163 includes a plurality of TN liquid crystal molecules, and the plurality of TN liquid crystal molecules can control whether the light penetrates according to a pressure difference between the first transparent electrode 164a, the second transparent electrode 164b, and the second conductive layer 166.
  • the first transparent electrode 164a receives the voltage V greater than the voltage of the common voltage terminal Vcom (the first turn-on signal)
  • the second transparent electrode 164b receives the potential equal to the common voltage terminal Vcom (the second turn-off signal)
  • the TN liquid crystal molecules in the TN unit layer 163 corresponding to the relative positions of the first transparent electrodes 164a are in accordance with the voltage V applied to the first transparent electrode 164a and the common voltage terminal Vcom of the conductive layer 166.
  • the pressure difference is rotated, and the light incident from the second polarizer 132 is penetrated through the first transparent electrode 164a.
  • the TN liquid crystal molecules in the TN unit layer 163 corresponding to the relative positions of the second transparent electrodes 164b are not permeable because the voltage applied to the second transparent electrode 164b and the common voltage terminal Vcom of the second conductive layer 166 are the same.
  • the second transparent electrode 164b is passed through.
  • the first transparent electrode 164a When the potential equal to the common voltage terminal Vcom (the first turn-off signal) is received while the second transparent electrode 164b receives the voltage V (the second turn-on signal) greater than the voltage of the common voltage terminal Vcom, the light cannot penetrate the first transparent electrode 164a. However, light can penetrate the second transparent electrode 164b.
  • the lenticular sheet 160 can control whether the image of the odd-numbered column or the even-numbered column of the display unit area 140 can be viewed by the human eye.
  • FIG. 4 is a schematic diagram of the display unit area 140, the lenticular sheet 160, and the backlight module 102 in the first embodiment of the present invention.
  • the display unit area 140 is scanned in the direction indicated by the arrow B in a row-by-row manner until the last line is scanned. This period of time is referred to as a picture update frequency. Then continue scanning from the first line.
  • the following embodiment will update the screen with a frequency of 120. Hz for illustration, in fact, the screen update frequency is not limited to this.
  • the backlight module 102 includes a first light source group 110 and a second light source group 120.
  • the first light source group 110 and the second light source group 120 respectively occupy half of the light emitting area of the backlight module 102.
  • the display unit area 140 includes a first display area 141 and a second display area 142.
  • the display areas 141, 142 occupy one-half of the area of the display unit area 140, respectively.
  • FIG. 5 is a flow chart of a method for displaying an image of the device according to FIG. 4 according to the present invention.
  • the first display area 141 receives the Nth frame image signal
  • the second display area 142 maintains the received N-1th frame image signal.
  • a light source group 110 receives the first illumination signal to generate a first light. Therefore, the first display area 141 displays an image according to the first light.
  • the second light source group 120 does not receive the second light emitting signal and does not emit light
  • the second display area 142 receives the image signal of the N-1th frame, but the human eye cannot see the second display area 142 due to insufficient light. The displayed image.
  • step 504. When the first display area 141 and the second display area 142 receive the Nth frame image signal, the first light source group 110 receives the first illumination signal to generate the first light, and the second light source group 120 receives the second illumination signal to generate the second The first display area 141 and the second display area 142 display the Nth frame image according to the first light and the second light.
  • step 506 all of the light source groups 110, 120 are turned off and not illuminated.
  • the controller 104 can be used to accurately output each frame image signal, the first illuminating signal and the second illuminating signal. In this way, when the viewer views the image displayed by the display unit area 140, not only the resolution is not reduced, but also the display problem of different frame images on the same display unit layer 140 is not caused.
  • FIG. 6 is a schematic diagram of the display unit area 140, the lenticular sheet 160, and the backlight module 102 when the second embodiment of the present invention is activated.
  • the display unit area 140 of the embodiment includes a first display area 141, a second display area 142, and a third display area 143.
  • the display areas 141, 142, and 143 respectively occupy the display.
  • FIG. 7 is a flowchart of a method for displaying an image of the device according to FIG. 6 according to the present invention.
  • the first display area 141 receives the Nth frame image signal, and the second display area 142 and the third display area 143 maintain the received N-1th frame image.
  • the signal, at this time, the first light source group 110 receives the first illumination signal to generate the first light. Therefore, the first display area 141 displays the Nth frame image according to the first light.
  • the second display area 142 and the third display area 143 receive the image signal of the N-1th frame, but the human eye cannot The images displayed by the second display area 142 and the third display area 143 are seen.
  • step 704 when the first display area 141 and the second display area 142 are sequentially scanned, the first display area 141 and the second display area 142 receive the Nth frame image signal, and the third display area 143 is maintained.
  • the received N-1th frame image signal at which time the first light source group 110 receives the first illumination signal to generate the first light. Therefore, the first display area 141 and the second display area 142 display the Nth frame image according to the first light.
  • the second light source group 120 since the second light source group 120 does not receive the second light emitting signal and does not emit light, the third display area 143 receives the image signal of the N-1th frame, but the third display area 143 cannot be seen by the human eye due to insufficient light.
  • the displayed image since the second light source group 120 does not receive the second light emitting signal and does not emit light, the third display area 143 receives the image signal of the N-1th frame, but the third display area 143 cannot be seen by the human eye due to insufficient light. The displayed image.
  • step 706 when the first display area 141, the second display area 142, and the third display area 143 are sequentially scanned, the first display area 141, the second display area 142, and the third display area 143 receive the Nth The frame image signal, at this time, the first light source group 110 receives the first light emitting signal to generate the first light, and the second light source group 120 receives the second light emitting signal to emit light. Therefore, the first display area 141, the second display area 142, and the third display area 143 display the Nth frame image according to the first light and the second light.
  • step 708 all of the light source groups 110, 120 are turned off and not illuminated.
  • the controller 104 can be used to accurately output each frame image signal, the first illuminating signal and the second illuminating signal. In this way, when the viewer views the image displayed by the display unit area 140, not only the resolution is not reduced, but also the display problem of different frame images on the same display unit layer 140 is not caused.
  • FIG. 8 is a schematic diagram of the display unit area 140, the lenticular sheet 160, and the backlight module 102 when the third embodiment of the present invention is activated.
  • the display unit area 140 is scanned in the direction indicated by the arrow B in a row-by-row manner until the last line is scanned. This period of time is referred to as a picture update frequency. Then continue scanning from the first line.
  • the backlight module 102 includes n light source groups 110-1 ⁇ 110-n, where n is a positive integer.
  • each light source group has an equal illumination range.
  • the display unit area 140 includes n display areas 141-1 ⁇ 141-n.
  • each display area 141-1 ⁇ 141-n is equally divided into display unit areas, and each display area is overlapped with one of the light source groups. The range of illumination.
  • the light source group corresponding to the display area is simultaneously illuminated until the display unit area 140 is scanned. That is, when the first display area 141-1 to the kth display area 141-k are scanned, the first display area 141-1 to the kth display area 141-k are received as the Nth frame.
  • the image signal but when the k+1th display area 141-k+1 to the nth display area 141-n receive the N-1th frame image signal, the first light source group 110-1 to the kth light source group 110 -k generates light, the k+1th light source group 110-k+1 to the nth light source group 110-n do not emit light, and the first display area 141-1 to the kth display area 141-k are in accordance with the Nth frame
  • the image signal and the light generated by the first light source group 110-1 to the kth light source group 110-k display the Nth image, the k+1th display area 141-k+1 to the nth display area 140-n Since the k+1th light source group 110-k+1 to the nth light source group 110-n do not emit light, the N-1th frame image is not displayed.
  • all the light source groups are turned off until the first display area receives the N+1th frame image, and the first light source group 110-1 emit
  • the display device of the present invention may be a display device capable of simultaneously displaying different images.
  • a stereoscopic image display device using binocular parallax or a display device that can observe different images by the left and right observers of the display screen. More specifically, it can be used for a liquid crystal television, a liquid crystal display, a plasma display, a projector, a notebook computer, a medical display device, a car navigation system display device, and the like.
  • the display device of the present invention divides the backlight module into a plurality of light source groups, and performs scanning in synchronization with the display panel.
  • the display panel sweeps through a display area
  • the corresponding light source group emits light
  • the light source group corresponding to the display area that has not been scanned does not emit light.
  • the viewer does not see the two frames of images appearing at the same time before the display panel has completely scanned the entire display area, which can improve the problem of 3D image crosstalk to improve the quality of the displayed 3D image.

Abstract

一种显示三维影像的显示设备（100），包含背光模块（102）和显示单元区（140）。背光模块（102）包含n个光源组（110-1，……，110-n），用来产生光线。显示单元区（140）包含n个显示区（141-1，……，141-n）。当依序扫描完第一个显示区(141-1)至第k个显示区（141-k），使第一个显示区(141-1)至第k个显示区（141-k）接收当前帧信号，但第k＋1个显示区（141-k＋1）至第n个显示区（141-n）接收前一帧影像信号时，第一个光源组（110-1）到第k个光源组（110-k）产生光线，第k＋1个光源组（110-k＋1）至第n个光源组（110-n）不发光，第一个显示区(141-1)至第k个显示区（141-k）依据当前帧影像信号和第一个光源组（110-1）至第k个光源组（110-k）产生的光线显示当前帧影像，第k＋1个显示区（141-k＋1）至第n个显示区（141-n）因第k＋1个光源组（110-k+1）至第n个光源组（110-n）不发光而不显示前一帧影像。

Description

[根据细则26改正05.02.2015]　改善三维影像串扰的显示设备和显示方法 技术领域
本发明涉及一种用于显示三维影像的显示设备和显示方法，尤其涉及一种可改善影像串扰的显示设备和显示方法。
 背景技术
人类是透过双眼所看到的展望而感知到真实世界的影像。而人类的大脑会进一步根据双眼所看到两个不同角度的展望之间的空间距离差异而形成所谓的3D(3-dimension)影像。所谓的3D显示设备就是模拟人类双眼不同角度的视野，而使得使用者在观看的2D显示影像时，能感知为3D影像的显示设备。
随着液晶显示技术的日益成熟，立体显示技术也得到了蓬勃发展。立体显示技术主要分为眼镜式和裸眼式两大类。眼镜式立体显示技术通常需要用户佩戴特制的眼镜才能观看到立体影像，这不仅使用户需要额外花费金钱购买眼镜，并且佩戴眼镜也会影响用户观看的舒适度，对于推动立体显示的普及而言，眼镜无疑是一大障碍。而裸眼式立体显示技术则摆脱了眼镜的束缚，不需要额外的设备即可使用户观看到立体影像，因此更受用户和商家的欢迎。
请参阅图1，图1为传统裸眼式立体显示设备10在显示时，各像素显示状态的示意图。显示设备10包含液晶面板12以及光栅片14。液晶面板12包含像素矩阵。光栅片14上形成有纵条纹(stripe)状的透光条纹14a和档光条纹14b。透光条纹14a和档光条纹14b的间隔对应左眼用像素和右眼用像素的配列而设定。藉上述的光栅片14而将左眼用影像和右眼用影像左右分离，此被分离的影像分别映入观看者的左眼L及右眼R。在第N帧影像时，奇数列的像素是依据左眼信号显示影像，而偶数列的像素是依据右眼信号显示影像，像素所接收的信号处于LR模式。而在第N+1帧影像时，奇数列的像素是依据右眼信号显示影像，而偶数列的像素是依据左眼信号显示影像，像素所接收的信号处于RL模式。由于液晶面板12是采用一行接一行的扫描方式，因此在液晶面板12的画面更新至一半时，在液晶面板12的上半部，左右眼信号所分布的行数和下半部不同。以图1为例，液晶面板12上半部的像素所接收的信号为RL模式，但下半部的像素所接收的信号为LR模式。但此时作为视差屏障的光栅片14一起作动的话，会导致人眼最后接收到的信号是左右眼信号混在一起的。这样便会产生影像串扰(Crosstalk)，影像串扰的大小直接影响到观看3D的效果。
 技术问题
因此本发明的目的是提供一种显示设备和显示方法，将背光模块分成多个光源组，与显示面板同步做扫描。当显示面板扫完一个显示区时，对应的光源组发出光线，还未扫描的显示区所对应的光源组不发光。通过此一操作，可以改善3D影像串扰的问题，以提高显示3D影像质量。
 技术解决方案
本发明揭露一种显示三维影像的显示设备，其包含背光模块，包含第一光源组和第二光源组，用来产生光线；以及显示单元区，其包含第一显示区以及第二显示区，所述第一显示区重叠于所述第一光源组的发光范围，所述第二显示区重叠于所述第二光源组的发光范围。当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区因所述第二光源组不发光而不显示所述前一帧影像。当扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
根据本发明的一实施例，所述第一显示区和所述第二显示区皆为所述显示单元区的二分之一。
根据本发明的一实施例，所述第一光源组和所述第二光源组的发光范围为所述显示单元区的二分之一。
根据本发明的一实施例，所述显示单元区另包含第三显示区，当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区和所述第三显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区和所述第三显示区因所述第二光源组不发光而不显示所述前一帧影像。当扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收当前帧影像信号，但所述第三显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第三显示区因所述第二光源组不发光而不显示所述前一帧影像。当扫描完所述第一显示区、所述第二显示区和所述第三显示区，使得所述第一显示区、所述第二显示区和所述第三显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区、所述第二显示区和所述第三显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
根据本发明的一实施例，所述第一显示区、所述第二显示区和所述第三显示区皆为所述显示单元区的三分之一。
本发明还揭露一种利用显示设备显示三维影像的方法，所述显示设备包含显示单元区和背光模块，所述显示单元区包含第一显示区以及第二显示区，所述背光模块包含第一光源组以及第二光源组，所述方法包含：当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区因所述第二光源组不发光而不显示所述前一帧影像。当扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
根据本发明的一实施例，所述第一显示区和所述第二显示区皆为所述显示单元区的二分之一。
根据本发明的一实施例，所述显示单元区另包含第三显示区，所述方法另包含：当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区和所述第三显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区和所述第三显示区因所述第二光源组不发光而不显示所述前一帧影像，
当扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收当前帧影像信号，但所述第三显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第三显示区因所述第二光源组不发光而不显示所述前一帧影像，
当扫描完所述第一显示区、所述第二显示区和所述第三显示区，使得所述第一显示区、所述第二显示区和所述第三显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区、所述第二显示区和所述第三显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
本发明另揭露一种一种显示三维影像的显示设备，其包含背光模块，包含n个光源组，每一光源组用来产生光线，n为正整数；以及显示单元区，其包含n个显示区，每一显示区重叠于其中一个光源组的发光范围。当扫描完第一个显示区至第k个显示区，使得所述第一个显示区至第k个显示区接收当前帧影像信号，但第k+1个显示区至第n个显示区接收前一帧影像信号时，第一个光源组至第k个光源组产生光线，第k+1个光源组至第n个光源组不发光，第一个显示区至第k个显示区依据所述当前帧影像信号和所述第一个光源组至第k个光源组产生的光线显示当前帧影像，所述第k+1个显示区至第n个显示区因所述第k+1个光源组至第n个光源组不发光而不显示所述前一帧影像。
根据本发明的一实施例，所述n个显示区的面积相等。
 有益效果
相较于现有技术，本发明的显示设备将背光模块分成多个光源组，与显示面板同步做扫描。当显示面板扫完一个显示区时，对应的光源组发出光线，还未扫描的显示区所对应的光源组不发光。通过此一操作，当显示面板还未完全扫完全部显示区之前，观看者不会看到前后两帧影像同时出现，可以改善3D影像串扰的问题，以提高显示3D影像质量。
 附图说明
图1为传统裸眼式立体显示设备在显示时，各像素显示状态的示意图。
图2为本发明的显示三维影像的立体影像显示设备的示意图。
图3为图2的光栅片的结构图。
图4是本发明第一实施例的显示单元区、光栅片以及背光模块作动时的示意图。
图5是本发明依据图4显示设备的显示影像的方法流程图。
图6是本发明第二实施例的显示单元区、光栅片以及背光模块作动时的示意图。
图7是本发明依据图6显示设备的显示影像的方法流程图。
图8是本发明第三实施例的显示单元区、光栅片以及背光模块作动时的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施之特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「顶」、「底」、「水平」、「垂直」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参阅图2，图2为本发明的显示三维影像的立体影像显示设备100的示意图。用户观看立体影像显示设备100时，可以看到3D的立体影像。立体影像显示设备100包含背光模块102、控制器104、第一偏光片130、显示单元区140、第二偏光片132以及光栅片160。背光模块102用来产生光线，其可以采用发光二极管(Light emitting diode，LED)或是冷阴极射线管做为光源。显示单元区140可以是用来显示影像的液晶面板，其包含由数个像素组成的像素矩阵。背光模块102产生的光线会照射至第一偏光片130。第一偏光片130具有由以观察者A一侧为基准约135°的偏光轴设定，故具备透射具有由观察者A侧看约135°的偏光轴光线的功能。以下只要未特别记载，偏光轴的角度表示由观察者A一侧所看的角度。第二偏光片132具有以观察者A一侧为基准约45°的偏光轴设定，故具备透射具有由观察者A侧看约45°的偏光轴光线的功能。
请参阅图3，图3为图2的光栅片160的结构图。光栅片160包含第一导电层164、第二导电层166以及夹于导电层164、166之间的扭转向列单元层(Twisted Nematic，TN) 163。导电层164、166是透明导电层，其材质可以是氧化铟锡。第一导电层164包括数条彼此平行的条纹(stripe)状的第一透明电极164a和第二透明电极164b。第一透明电极164a和第二透明电极164b是交替排列，且分别对应到显示单元区140的奇数列(column)和偶数列像素。第二导电层166耦接共电压端Vcom。扭转向列单元层163包含数个TN液晶分子，该数个TN液晶分子可依据第一透明电极164a、第二透明电极164b和第二导电层166之间压差控制光线是否穿透。举例来说，当第一透明电极164a接收到大于共电压端Vcom电压的电压V时(第一开启信号)，同时第二透明电极164b会接收到等于共电压端Vcom的电位(第二关闭信号)，此时，对应于第一透明电极164a相对位置的TN单元层163内的TN液晶分子会根据施加于第一透明电极164a的电压V以及导电层166的共电压端Vcom两者之间的压差作旋转，此时第二偏光片132射入的光线得以穿透第一透明电极164a。但同时，对应于第二透明电极164b相对位置的TN单元层163内的TN液晶分子则因为施加于第二透明电极164b的电压和第二导电层166的共电压端Vcom相同，所以光线无法穿透第二透明电极164b。反之，当第一透明电极164a 接收到等于共电压端Vcom的电位(第一关闭信号)，同时第二透明电极164b接收到大于共电压端Vcom电压的电压V(第二开启信号)时，光线无法穿透第一透明电极164a，但光线得以穿透第二透明电极164b。利用上述原理，只要根据控制器104发出的第一开启信号以及第二开启信号，就能控制光线是否能穿透第一透明电极164a或是第二透明电极164b。如此一来，光栅片160就能实现控制显示单元区140奇数列或偶数列像素的影像是否能被人眼所视。
请参阅图4，图4是本发明第一实施例的显示单元区140、光栅片160以及背光模块102作动时的示意图。显示单元区140是采一行接一行(row-by-row)的方式沿箭头B所示的方向扫描，直到扫描到最后一行，这一段时间称为一个画面更新频率。接下来再从第一行继续扫描。以下的实施例将以画面更新频率为120 Hz作说明，实际上画面更新频率并不以此为限。背光模块102包含第一光源组110以及第二光源组120，较佳地，第一光源组110以及第二光源组120分别占背光模块102发光面积的一半。显示单元区140则包含第一显示区141以及第二显示区142，较佳地，显示区141、142分别占显示单元区140的二分之一面积。
请一并参阅图4和图5，图5是本发明依据图4显示设备的显示影像的方法流程图。如步骤502所示，当扫描至一半的显示单元区140时，第一显示区141接收第N帧影像信号，而第二显示区142则维持接收的第N-1帧影像信号，此时第一光源组110接收第一发光信号而产生第一光线。因此第一显示区141依据第一光线显示影像。同时，因为第二光源组120没有接收到第二发光信号而不发光，所以第二显示区142虽然接收到第N-1帧影像信号，但是因光线不足所以人眼无法看见第二显示区142所显示的影像。
接下来，如步骤504所示。当第一显示区141以及第二显示区142接收第N帧影像信号时，第一光源组110接收第一发光信号而产生第一光线，第二光源组120接收第二发光信号而产生第二光线，第一显示区141以及第二显示区142依据第一光线和第二光线显示第N帧影像。
接下来，如步骤506所示，所有光源组110、120关闭不发光。
控制器104可用来准确输出各帧影像信号、该第一发光信号与该第二发光信号。如此一来，观察者在观看显示单元区140所显示的影像时，不仅分辨率不会减少，而且也不会有同一显示单元层140上有不同帧影像的显示问题。
请参阅图6，图6是本发明第二实施例的显示单元区140、光栅片160以及背光模块102作动时的示意图。不同于图4的实施例，本实施例的显示单元区140则包含第一显示区141、第二显示区142以及第三显示区143，较佳地，显示区141、142、143分别占显示单元区140的三分之一面积。
请一并参阅图6和图7，图7是本发明依据图6显示设备的显示影像的方法流程图。如步骤702所示，当扫描至第一显示区141时，第一显示区141接收第N帧影像信号，而第二显示区142和第三显示区143则维持接收的第N-1帧影像信号，此时第一光源组110接收第一发光信号而产生第一光线。因此第一显示区141依据第一光线显示第N帧影像。同时，因为第二光源组120没有接收到第二发光信号而不发光，所以第二显示区142和第三显示区143虽然接收到第N-1帧影像信号，但是因光线不足所以人眼无法看见第二显示区142和第三显示区143所显示的影像。
如步骤704所示，当依序扫描完第一显示区141和第二显示区142时，第一显示区141以及第二显示区142接收第N帧影像信号，而第三显示区143则维持接收的第N-1帧影像信号，此时第一光源组110接收第一发光信号而产生第一光线。因此第一显示区141和第二显示区142依据第一光线显示第N帧影像。同时，因为第二光源组120没有接收到第二发光信号而不发光，所以第三显示区143虽然接收到第N-1帧影像信号，但是因光线不足所以人眼无法看见第三显示区143所显示的影像。
如步骤706所示，当依序扫描完第一显示区141、第二显示区142和第三显示区143时，第一显示区141、第二显示区142以及第三显示区143接收第N帧影像信号，此时第一光源组110接收第一发光信号而产生第一光线，而第二光源组120接收到第二发光信号而发光。因此第一显示区141、第二显示区142和第三显示区143依据第一光线和第二光线显示第N帧影像。
接下来，如步骤708所示，所有光源组110、120关闭不发光。
控制器104可用来准确输出各帧影像信号、该第一发光信号与该第二发光信号。如此一来，观察者在观看显示单元区140所显示的影像时，不仅分辨率不会减少，而且也不会有同一显示单元层140上有不同帧影像的显示问题。
请参阅图8，图8是本发明第三实施例的显示单元区140、光栅片160以及背光模块102作动时的示意图。显示单元区140是采一行接一行(row-by-row)的方式沿箭头B所示的方向扫描，直到扫描到最后一行，这一段时间称为一个画面更新频率。接下来再从第一行继续扫描。背光模块102包含n个光源组110-1~110-n，其中n为正整数。较佳地，每一光源组的发光范围相等。显示单元区140则包含n个显示区141-1~141-n，较佳地，每一显示区141-1~141-n等分显示单元区，且每一显示区重叠于其中一个光源组的发光范围。
当依序扫描完其中一个显示区时，对应于该显示区的光源组会同时点亮，直到显示单元区140都扫描完毕。也就是说，当扫描完第一个显示区141-1至第k个显示区141-k，使得所述第一个显示区141-1至第k个显示区141-k接收当第N帧影像信号，但第k+1个显示区141-k+1至第n个显示区141-n接收第N-1帧影像信号时，第一个光源组110-1至第k个光源组110-k产生光线，第k+1个光源组110-k+1至第n个光源组110-n不发光，第一个显示区141-1至第k个显示区141-k依据第N帧影像信号和第一个光源组110-1至第k个光源组110-k产生的光线显示第N帧影像，第k+1个显示区141-k+1至第n个显示区140-n因第k+1个光源组110-k+1至第n个光源组110-n不发光而不显示第N-1帧影像。当每一显示区都已显示第N帧影像后，所有光源组都会关闭，直到第一个显示区接收到第N+1帧影像后，且第一个光源组110-1再次发光。
本发明的显示设备可以是能同时显示不同的图像的显示设备。也就是说，能使用于利用两眼视差的立体图像显示设备或显示画面的左右的观察者能分别观测不同的图像的显示设备。更具体而言，能被使用于液晶电视、液晶显示器、电浆显示器、投影机、笔记本电脑、医疗用显示设备、汽车导航系统显示设备等等。
相较于现有技术，本发明的显示设备将背光模块分成多个光源组，与显示面板同步做扫描。当显示面板扫完一个显示区时，对应的光源组发出光线，还未扫描的显示区所对应的光源组不发光。通过此一操作，当显示面板还未完全扫完全部显示区之前，观看者不会看到前后两帧影像同时出现，可以改善3D影像串扰的问题，以提高显示3D影像质量。
综上所述，虽然本发明已以较佳实施例揭露如上，但该较佳实施例并非用以限制本发明，该领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (10)

  1. 一种显示三维影像的显示设备，其包含：
    背光模块，包含第一光源组和第二光源组，用来产生光线；以及
    显示单元区，其包含第一显示区以及第二显示区，所述第一显示区重叠于所述第一光源组的发光范围，所述第二显示区重叠于所述第二光源组的发光范围；
    其中当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区接收前一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区因所述第二光源组不发光而不显示所述前一帧影像；
    当扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
  2. 如权利要求1所述的显示设备，其中所述第一显示区和所述第二显示区皆为所述显示单元区的二分之一。
  3. 如权利要求2所述的显示设备，其中所述第一光源组和所述第二光源组的发光范围为所述显示单元区的二分之一。
  4. 如权利要求1所述的显示设备，其中所述显示单元区另包含第三显示区，当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区和所述第三显示区接收当一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区和所述第三显示区因所述第二光源组不发光而不显示所述当一帧影像，
    当依序扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收当前帧影像信号，但所述第三显示区接收当一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第三显示区因所述第二光源组不发光而不显示所述当一帧影像；
    当依序扫描完所述第一显示区、所述第二显示区和所述第三显示区，使得所述第一显示区、所述第二显示区和所述第三显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区、所述第二显示区和所述第三显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
  5. 如权利要求4所述的显示设备，其中所述第一显示区、所述第二显示区和所述第三显示区皆为所述显示单元区的三分之一。
  6. 一种利用显示设备显示三维影像的方法，所述显示设备包含显示单元区和背光模块，所述显示单元区包含第一显示区以及第二显示区，所述背光模块包含第一光源组以及第二光源组，所述方法包含：
    当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区接收当一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区因所述第二光源组不发光而不显示所述当一帧影像；以及
    当依序扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
  7. 如权利要求6所述的方法，其中所述第一显示区和所述第二显示区皆为所述显示单元区的二分之一。
  8. 如权利要求6所述的方法，其中所述显示单元区另包含第三显示区，所述方法另包含：
    当扫描完所述第一显示区，使得所述第一显示区接收当前帧影像信号，但所述第二显示区和所述第三显示区接收当一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第二显示区和所述第三显示区因所述第二光源组不发光而不显示所述当一帧影像；
    当依序扫描完所述第一显示区和所述第二显示区，使得所述第一显示区和所述第二显示区接收当前帧影像信号，但所述第三显示区接收当一帧影像信号时，所述第一光源组产生光线，所述第二光源组不发光，所述第一显示区和所述第二显示区依据所述当前帧影像信号和所述第一光源组产生的光线显示当前帧影像，所述第三显示区因所述第二光源组不发光而不显示所述当一帧影像；
    当依序扫描完所述第一显示区、所述第二显示区和所述第三显示区，使得所述第一显示区、所述第二显示区和所述第三显示区接收所述当前帧影像信号时，所述第一光源组和所述第二光源组产生光线，所述第一显示区、所述第二显示区和所述第三显示区依据所述当前帧影像信号和所述第一光源组和所述第二光源组产生的光线显示所述当前帧影像。
  9. 一种显示三维影像的显示设备，其包含：
    背光模块，包含n个光源组，每一光源组用来产生光线，n为正整数；以及
    显示单元区，其包含n个显示区，每一显示区重叠于其中一个光源组的发光范围；
    其中当依序扫描完第一个显示区至第k个显示区，使得所述第一个显示区至第k个显示区接收当前帧影像信号，但第k+1个显示区至第n个显示区接收当一帧影像信号时，第一个光源组至第k个光源组产生光线，第k+1个光源组至第n个光源组不发光，第一个显示区至第k个显示区依据所述当前帧影像信号和所述第一个光源组至第k个光源组产生的光线显示当前帧影像，所述第k+1个显示区至第n个显示区因所述第k+1个光源组至第n个光源组不发光而不显示所述当一帧影像，k小于n，且为正整数。
  10. 如权利要求9所述的显示设备，其中所述n个显示区的面积相等。
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