CN104503182A - Driving circuit, three-dimensional display equipment, display switching device and method thereof - Google Patents

Driving circuit, three-dimensional display equipment, display switching device and method thereof Download PDF

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Publication number
CN104503182A
CN104503182A CN201410842797.XA CN201410842797A CN104503182A CN 104503182 A CN104503182 A CN 104503182A CN 201410842797 A CN201410842797 A CN 201410842797A CN 104503182 A CN104503182 A CN 104503182A
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Prior art keywords
display mode
voltage
electrode
mode switching
switching command
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CN201410842797.XA
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CN104503182B (en
Inventor
全宏伟
范海玉
郭福忠
宫晓达
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Shenzhen Super Technology Co Ltd
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Shenzhen Super Perfect Optics Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The invention discloses a driving circuit, which is used for a beam splitting device of three-dimensional display equipment and comprises a driving controller and a driving generating circuit, wherein the driving controller is used for receiving a display mode switching instruction, the display mode switching instruction is used for switching the display mode of the three-dimensional display equipment and carries out discharging processing on the beam splitting device according to the display mode switching instruction, and the driving generating circuit is controlled to generate voltage required by the display mode switching. Through the driving circuit, the time delay of the display mode switching is effectively shortened, and the watching experience of a user is greatly improved.

Description

Driving circuit, stereoscopic display device, display switching device and method thereof
Technical field
The present invention relates to stereo display technique field, particularly relate to driving circuit, stereoscopic display device, display switching device and method thereof.
Background technology
The mankind are degree of depth that the nuance of the object seen by right eye and left eye carrys out perceptual object, thus identify stereo-picture, and this species diversity is called as parallax.Stereo display technique is exactly the parallax of the right and left eyes being carried out manufacturer by artificial means, sends to two width images of parallax to images of left and right eyes respectively, makes brain after obtaining the different images that right and left eyes sees, produces the sensation of observing true three-dimension object.
That is familiar with liquid crystal material along with people deepens continuously, and adopt the light-splitting device that liquid crystal material is made, such as, liquid crystal lens, has a wide range of applications, as being applied to field of stereoscopic display.The 2D/3D switchable stereo display device structural representation that Fig. 1 provides for prior art.2D/3D switchable stereo display device comprises display device 1 ＇ and is located at liquid crystal lens 2 ＇ of display device 1 ＇ light emission side, in the left eye that the light that display device 1 ＇ sends enters beholder respectively through liquid crystal lens 2 ＇ and right eye, realizes stereo display.Liquid crystal lens 2 ＇ comprises first substrate 21 ＇ that is oppositely arranged and second substrate 22 ＇, be arranged on the liquid crystal layer that includes liquid crystal molecule 23 ＇ between first substrate 21 ＇ and second substrate 22 ＇ and spacer 24 ＇ for supporting thickness of liquid crystal layer, and spacer 24 ＇ generally adopts transparent material to make.First substrate 21 ＇ is provided with multiple spaced first electrode 25 ＇, second substrate 22 ＇ is provided with the second electrode (not shown), when 2D/3D switchable stereo display device is used for 3D display, driving voltage is applied to multiple first electrode 25 ＇, second electrode applies common electric voltage, electric potential difference between driving voltage and common electric voltage, between first substrate 21 ＇ and second substrate 22 ＇, form electric field, liquid crystal molecule 23 ＇ in electric field driven liquid crystal layer arranges and forms the liquid crystal lens unit arranged in array.Therefore, by controlling the driving voltage on each first electrode 25 ＇, the index distribution of liquid crystal lens 2 ＇ can change accordingly, thus controls the bright dipping of display device 1 ＇, realizes stereo display and 2D/3D freely switches.When 2D/3D switchable stereo display device is in 2D display mode, liquid crystal molecule 23 ＇ of the light that display device 1 ＇ sends near spacer 24 ＇ and spacer 24 ＇, now, the refractive index of spacer 24 ＇ and the refringence of liquid crystal molecule 23 ＇ larger, light reflects at spacer 24 ＇, as human eye viewing liquid crystal lens 2 ＇, there is bright spot or color some phenomenon at spacer 24 ＇ place, affect viewing effect and the viewing comfort level of beholder.
For eliminating when 2D shows in prior art, the bright spot phenomenon occurred at spacer 24 ＇ place: when showing at 2D, the driving voltage of each first electrode is all switched to deflection voltage by driving circuit, wherein, pressure reduction between the common electric voltage of deflection voltage and the second electrode produces electric field and makes whole liquid crystal molecule 23 ＇ that the deflection of equal angular occur, and deflection after liquid crystal molecule 23 ＇ and spacer 24 ＇ between refringence in preset range, solve because the refringence between liquid crystal molecule 23 ＇ and spacer 24 ＇ is larger, light reflects at spacer 24 ＇, spacer 24 ＇ place is caused to occur bright spot or color some phenomenon.
Inventor finds in the process realizing the embodiment of the present invention, when 3 d display device is for showing 2D image, the driving voltage of the first electrode is switched to deflection voltage by driving circuit, approximately 1 to 2 minute is needed in handoff procedure, or when 3 d display device is used for 3D rendering, deflection voltage is switched to driving voltage by driving circuit again, approximately 3 to 4 minutes are needed in handoff procedure, therefore, in handoff procedure, there is the problem of switching delay, affect the normal viewing of beholder, user's viewing experience is bad.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of driving circuit, stereoscopic display device, display switching device and method thereof, for solving the problem of handoff delay overlong time in display mode handoff procedure in prior art, can handoff delay be shortened, promote user's viewing experience.
For solving the problems of the technologies described above, the invention provides a kind of driving circuit, for driving the light-splitting device of stereoscopic display device, comprising: driving governor and driving circuit for generating,
Described driving governor, for receiving display mode switching command, described display mode switching command is for switching the display mode of stereoscopic display device, and according to described display mode switching command, discharge process is carried out to described light-splitting device, control the voltage required for the switching of described driving circuit for generating generation display mode.
Alternatively, described light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, liquid crystal layer and spacer is provided with between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, all keep at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate be provided with the second electrode, described driving governor specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
Alternatively, described driving circuit for generating comprises square wave generation electronic circuit and switches electronic circuit, described square wave generation electronic circuit is used for the voltage producing display mode switching according to display mode switching command, and described switching electronic circuit is used for the voltage according to display mode switching command, each described first electrode voltage being switched to display mode switching.
Alternatively, described control described driving circuit for generating all discharges to each described first electrode, comprising:
When described second electrode voltage is total null voltage, each described first electrode voltage is switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, each described first electrode voltage is switched to common electric voltage by the common electric voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit.
Alternatively, described light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
The embodiment of the present invention provides a kind of display switching device, for switching the display mode of stereoscopic display device, comprising:
Processing unit, for detecting the using state of described stereoscopic display device, and determines whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then sends display mode switching command,
Driving circuit, for receiving described display mode switching command, and discharges to described stereoscopic display device according to described display mode switching command, after having discharged, produces the voltage required for display mode switching.
Alternatively, described driving circuit comprises: driving governor and driving circuit for generating, described driving governor, for receiving display mode switching command, described display mode switching command is for switching the display mode of stereoscopic display device, and according to described display mode switching command, discharge process is carried out to the light-splitting device of described stereoscopic display device, control the voltage required for the switching of described driving circuit for generating generation display mode.
Alternatively, described light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, liquid crystal layer and spacer is provided with between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, all keep at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate be provided with the second electrode, described driving governor specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
Alternatively, described driving circuit for generating comprises square wave generation electronic circuit and switches electronic circuit, described square wave generation electronic circuit is used for producing according to display mode switching command the voltage switching display mode, and described switching electronic circuit is used for the voltage according to display mode switching command, each described first electrode voltage being switched to display mode switching.
Alternatively, described control described driving circuit for generating all discharges to each described first electrode, comprising:
When described second electrode voltage is total null voltage, each described first electrode voltage is switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, each described first electrode voltage is switched to common electric voltage by the common electric voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit.
Alternatively, described processing unit comprises:
Detection module, for detecting the using state of described stereoscopic display device,
Determination module, for according to described using state, determines whether to need to carry out display mode switching,
Sending module, during for determining according to described determination module to need to carry out display mode switching, sends display mode switching command.
Alternatively, described using state comprises the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, described detection module specifically for: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
Alternatively, the 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
Alternatively, described determination module specifically for: the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching.
Alternatively, described light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
The invention process provides a kind of stereoscopic display device, comprises arbitrary stereoscopic display mode switching device shifter as described above.
The embodiment of the present invention provides a kind of display mode switching method, for switching the display mode of stereoscopic display device, comprising:
Detect the using state of described stereoscopic display device, and determine whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then send display mode switching command,
Receive described display mode switching command, and according to described display mode switching command, described stereoscopic display device is discharged, after having discharged, produce the voltage required for display mode switching.
Alternatively, describedly to discharge to described stereoscopic display device according to described display mode switching command, the driving voltage required for the rear generation display mode that discharged switches, specifically comprises:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, each first electrode of the light-splitting device of described stereoscopic display device is all discharged, after having discharged, applies deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, each first electrode of the light-splitting device of described stereoscopic display device is all discharged, after having discharged, applies driving voltage to each described first electrode.
Alternatively, described each described first electrode all to be discharged, comprising:
When the second electrode voltage of the light-splitting device of described stereoscopic display device is total null voltage, each described first electrode voltage is switched to total null voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, each described first electrode voltage is switched to common electric voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage.
Alternatively, described using state comprises the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, and the using state of the described stereoscopic display device of described detection is specially: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
Alternatively, the 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
Alternatively, determine whether that needing to carry out display mode switching is specially according to described using state: the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching.
In embodiments of the present invention, by detecting the using state of stereoscopic display device, and determine whether to need to carry out display mode switching according to described using state, carry out sending display mode switching command when display mode switches at needs, and according to display mode switching command, discharge process is carried out to light-splitting device, control to produce the voltage switched required for display mode, complete display mode and switch, effectively shorten the time delay that display mode switches, greatly improve user's viewing experience.
Accompanying drawing explanation
The 2D/3D switchable stereo display device structural representation that Fig. 1 provides for prior art;
Fig. 2 is the principle of work schematic diagram of the light-splitting device of stereoscopic display device;
Fig. 3 is embodiment of the present invention driving circuit structure schematic diagram;
Fig. 4 is the change in voltage schematic diagram deflection voltage of each first electrode being discharged to the after-applied driving voltage of total null voltage;
Fig. 5 is the change in voltage schematic diagram deflection voltage of each first electrode being discharged to the after-applied driving voltage of common electric voltage;
Fig. 6 is embodiment of the present invention display switching device structural representation;
Fig. 7 is embodiment of the present invention display changeover method schematic diagram;
Fig. 8 is the process flow diagram of embodiment of the present invention display changeover method.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although carried out functional module division in device schematic diagram, show logical order in flow charts, in some cases, the Module Division in device can be different from, or the step shown or described by order execution in process flow diagram.
For ease of understanding the embodiment of the present invention, first, the principle of work of the light-splitting device of embodiment of the present invention Stereo display equipment is briefly described.
Fig. 2 is the principle of work schematic diagram of the light-splitting device of stereoscopic display device, and as shown in Figure 2, light-splitting device 2 comprises the first substrate 21 and second substrate 22 that are oppositely arranged.Second substrate 22 is arranged at the top of first substrate 21, the liquid crystal layer and spacer 24. first substrate 21 that are provided with liquid crystal molecule 23 between first substrate 21 and second substrate 22 are provided with multiple first electrode 25, all keep at a certain distance away between arbitrary neighborhood two the first electrodes 25, second substrate is provided with the second electrode (not shown), this second electrode can be whole electrode, also can be multiple strip electrode, in light-splitting device unit L1, to each strip electrode of the first electrode as S11, S12, S13, S14, S15, S16 apply symmetrical voltage.Particularly:
V(S11)＝V(S16)＞V(S12)＝V(S15)＞V(S13)＝V(S14)，
Wherein,
V(S11)＝V(S16)＝Vseg 0，V(S12)＝V(S15)＝Vseg 1，V(S13)＝V(S14)＝Vseg 2，
The voltage of light-splitting device unit L1 to present the trend of successively decreasing to center by two ends and voltage presents symmetrical, a kind of state of smooth transformation more can be presented like this at each light-splitting device unit L1 internal electric field, the light that display device 1 sends, through light-splitting device 2, presents stereo-picture.Therefore, by controlling the first driving voltage on each first electrode 25, the index distribution of light-splitting device 2 can change accordingly, thus controls the bright dipping of display device 1, realizes stereo display and 2D/3D freely switches.
For eliminating when 2D shows, the bright spot phenomenon occurred at spacer 24 place: when showing at 2D, by the first driving voltage on each first electrode, such as, comprise the driving voltage Vseg of strip electrode 0, Vseg 1, Vseg 2all switch to deflection voltage U 0, U 0with the driving voltage of the second electrode, the pressure reduction such as between common electric voltage (COM voltage) produces the first electric field, wherein U 0>V th, wherein V thfor threshold voltage, make whole liquid crystal molecule 23 that the deflection of equal angular occur, and deflection after liquid crystal molecule 23 and spacer 24 between refringence in preset range, preset range refers to the scope being less than 0.1 according to the refringence between spacer 24 and liquid crystal molecule 23, solve because the refringence between liquid crystal molecule 23 and spacer 24 is larger, light reflects at spacer 24, causes spacer 24 place to occur bright spot or color some phenomenon.
For solving when stereoscopic display device is used for 2D display, driving circuit is by Vseg 0, Vseg 1, Vseg 2all switch to U 0, or when 3 d display device is used for 3D display, driving circuit is by U 0switch to corresponding Vseg 0, Vseg 1, Vseg 2there is latency issue, be further elaborated below in conjunction with the embodiment of the present invention and accompanying drawing thereof.
Fig. 3 is the structural representation of embodiment of the present invention driving circuit, and as shown in Figure 3, driving circuit 3, for driving the light-splitting device of stereoscopic display device, comprising:
Driving governor 31 and driving circuit for generating 32,
Wherein, driving governor 31, for receiving display mode switching command, described display mode switching command is for switching the display mode of stereoscopic display device, and according to described display mode switching command, discharge process is carried out to described light-splitting device, control described driving circuit for generating 32 produce display mode switch required for voltage.
In embodiments of the present invention, light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, liquid crystal layer and the spacer of liquid crystal molecule is provided with between described first substrate and described second substrate, described first substrate comprises multiple first electrode, all keep at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate comprises the second electrode.This second electrode can be whole electrode, also can be multiple strip electrode, described second electrode is all applied with common electric voltage or total null voltage, described driving governor 31 specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
In embodiments of the present invention, drive circuit for generating 32, comprise: square wave generation electronic circuit 321 and switching electronic circuit 322, wherein, the voltage that square wave generation electronic circuit 321 switches for producing display mode according to display mode switching command, switches electronic circuit 322 for each described first electrode voltage being switched to according to display mode switching command the voltage of display mode switching.
In embodiments of the present invention, when described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, if the second electrode voltage is total null voltage, then square wave generation electronic circuit 321 produces total null voltage, and each described first electrode voltage is switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has all been switched to deflection voltage U 0.If the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces common electric voltage, and each described first electrode voltage is switched to common electric voltage by the common electric voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to COM voltage, after having discharged, such as, discharged after 1-2 second, then, the common electric voltage on each first electrode has all been switched to deflection voltage U 0.Or, if the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces total null voltage, and the second electrode and each described first electrode voltage are switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the second electrode COM tension discharge to total null voltage and by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has all been switched to deflection voltage U 0.
In embodiments of the present invention, when described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, if the second electrode voltage is total null voltage, then square wave generation electronic circuit 321 produces total null voltage, and each described first electrode voltage is switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the deflection voltage U of each first electrode 0all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.If the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces common electric voltage, and each described first electrode voltage is switched to common electric voltage by the common electric voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the deflection voltage U of each first electrode 0all be discharged to COM voltage, after having discharged, such as, discharged after 1-2 second, then, the common electric voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.Or, if the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces total null voltage, and the second electrode and each described first electrode voltage are switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the second electrode COM tension discharge to total null voltage and by the deflection voltage U of each first electrode 0all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.Such as, Fig. 4 is the change in voltage schematic diagram deflection voltage of each first electrode being discharged to the after-applied driving voltage of total null voltage, and as shown in Figure 4, the deflection voltage of each first electrode is U 0, all switch to no-voltage after discharge process, such as, after 2 seconds, complete electric discharge, then the no-voltage on each first electrode is switching to Vseg respectively 0, Vseg 1, Vseg 2; Fig. 5 is the change in voltage schematic diagram deflection voltage of each first electrode being discharged to the after-applied driving voltage of common electric voltage, as shown in Figure 5, and the deflection voltage U of the first electrode 0, switch to common electric voltage com voltage after discharge process, after 1 second, complete electric discharge, then the com voltage on the first electrode is switching to Vseg respectively 0, Vseg 1, Vseg 2.
In embodiments of the present invention, light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
In embodiments of the present invention, driving governor carries out discharge process according to display mode switching command to light-splitting device, control to drive circuit for generating to produce the voltage switched required for display mode, complete display mode to switch, effectively shorten the time delay that display mode switches, greatly improve user's viewing experience.In addition, in embodiments of the present invention, owing to adopting driving governor controlling party wave generation circuit and commutation circuit to discharge to electrode, then target voltage is switched to, achieve rapid discharge and quick switched voltage, handoff delay is shortened greatly, improves Consumer's Experience further.The results showed, through discharge process, above-mentioned driving circuit is switched to 3D display mode from 2D and only needs 3 seconds; 3D switches to 2D display mode and only needs 3 to 4 seconds; Greatly shorten delay time, promote the display effect of stereoscopic display device.
Fig. 6 is embodiment of the present invention display switching device structural representation, and as shown in Figure 6, display switching device, for switching the display mode of stereoscopic display device, comprising:
Processing unit 61, for detecting the using state of described stereoscopic display device, and determines whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then sends display mode switching command,
Driving circuit 63, for receiving described display mode switching command, and discharges to described stereoscopic display device according to described display mode switching command, after having discharged, produces the voltage required for display mode switching.
In embodiments of the present invention, driving circuit 63 comprises: driving governor 631 and driving circuit for generating 632, wherein,
Driving governor 631, for receiving display mode switching command, described display mode switching command is for switching the display mode of stereoscopic display device, and according to described display mode switching command, discharge process is carried out to the light-splitting device of described stereoscopic display device, control described driving circuit for generating 632 produce display mode switch required for voltage.
In embodiments of the present invention, described light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, liquid crystal layer and the spacer of liquid crystal molecule is provided with between described first substrate and described second substrate, described first substrate comprises multiple first electrode, all keep at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate comprises the second electrode, , this second electrode can be whole electrode, also can be multiple strip electrode, described second electrode be all applied with common electric voltage or be all applied with total null voltage, described driving governor 631 specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
In embodiments of the present invention, drive circuit for generating 632, comprise: square wave generation electronic circuit 6321 and switching electronic circuit 6322, wherein, the voltage that square wave generation electronic circuit 6321 switches for producing display mode according to display mode switching command, switches electronic circuit 6322 for each described first electrode voltage being switched to according to display mode switching command the voltage of display mode switching.
In embodiments of the present invention, when described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, if the second electrode voltage is total null voltage, then square wave generation electronic circuit 321 produces total null voltage, and each described first electrode voltage is switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has all been switched to deflection voltage U 0.If the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces common electric voltage, and each described first electrode voltage is switched to common electric voltage by the common electric voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to COM voltage, after having discharged, such as, discharged after 1-2 second, then, the common electric voltage on each first electrode has all been switched to deflection voltage U 0.Or, if the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces total null voltage, and the second electrode and each described first electrode voltage are switched to total null voltage by the total null voltage that switching electronic circuit 322 produces according to described square wave generation electronic circuit 321; Such as, by the second electrode COM tension discharge to total null voltage and by the Vseg of each first electrode 0, Vseg 1, Vseg 2all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has all been switched to deflection voltage U 0.
In embodiments of the present invention, when described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, if the second electrode voltage is total null voltage, then square wave generation electronic circuit 6321 produces total null voltage, and each described first electrode voltage is switched to total null voltage by the total null voltage that switching electronic circuit 6322 produces according to described square wave generation electronic circuit 6321; Such as, by the deflection voltage U of each first electrode 0all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.If the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces common electric voltage, and each described first electrode voltage is switched to common electric voltage by the common electric voltage that switching electronic circuit 6322 produces according to described square wave generation electronic circuit 321; Such as, by the deflection voltage U of each first electrode 0all be discharged to COM voltage, after having discharged, such as, discharged after 1-2 second, then, the common electric voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.Or, if the second electrode voltage is common electric voltage, then square wave generation electronic circuit 321 produces total null voltage, and the second electrode and each described first electrode voltage are switched to total null voltage by the total null voltage that switching electronic circuit 6322 produces according to described square wave generation electronic circuit 6321; Such as, by the second electrode COM tension discharge to total null voltage and by the deflection voltage U of each first electrode 0all be discharged to total null voltage, after having discharged, such as, discharged after 1-2 second, then, the total null voltage on each first electrode has been switched to driving voltage Vseg respectively 0, Vseg 1, Vseg 2.
In embodiments of the present invention, processing unit 61 comprises:
Detection module 611, for detecting the using state of described stereoscopic display device,
Determination module 612, for according to described using state, determines whether to need to carry out display mode switching,
Sending module 613, during for determining according to described determination module to need to carry out display mode switching, sends display mode switching command.
In embodiments of the present invention, described using state can comprise the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, described detection module specifically for: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
The 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
In embodiments of the present invention, determination module 512 is specifically for the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching, wherein, display mode switching comprises: 2D display mode switches to 3D display mode or 3D display mode to switch to 2D display mode.
In embodiments of the present invention, stereoscopic display mode switching device shifter processing unit 61 can be processor, one section of journey logic bomb can be comprised in this processor, this journey logic bomb for perform detect stereoscopic display device using state, according to described using state, determine whether to need to carry out display mode switching, and when determining to need to carry out display mode switching, send display mode switching command.When needs perform above-mentioned detection operation, this section of journey logic bomb is called in processor and performs process.
In embodiments of the present invention, light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
In embodiments of the present invention, stereoscopic display device is when 2D switches to 3D, and driving governor 631 first carries out discharge process to light-splitting device, by the deflection voltage U of each first electrode 0all switch to com voltage or total null voltage; After some seconds, such as, 1-2 has discharged after second, then the com voltage of each first electrode or total null voltage is switched to Vseg 0, Vseg 1, Vseg 2, form the light-splitting device required for 3D display, thus realize being switched to 3D display mode.In this process, driving governor 631 controls to drive circuit for generating 632, and comprise square wave circuit for generating 6321 and commutation circuit 6322, the driving voltage required for generation, the 2D completing display device switches to 3D state.
Similarly, stereoscopic display device is when 3D switches to 2D display mode, and driving governor 631 first carries out discharge process to light-splitting device, by the driving voltage of each first electrode, such as, and Vseg 0, Vseg 1, Vseg 2all switch to com voltage or total null voltage; After some seconds, such as, 1-2 has discharged after second, then com voltage or total null voltage is switched to deflection voltage U 0, wherein, U 0>V th, thus complete 3D and switch to 2D display mode.
In embodiments of the present invention, by detecting the using state of stereoscopic display device, Timeliness coverage is the need of carrying out display mode switching, and when determining to need to carry out display mode switching, send display mode switching command, according to described display mode switching command, described stereoscopic display device is discharged, after having discharged, produce the voltage required for display mode switching.In addition, in embodiments of the present invention, owing to adopting driving governor controlling party wave generation circuit and commutation circuit to discharge to electrode, then target voltage is switched to, achieve rapid discharge and quick switched voltage, handoff delay is shortened greatly, improves Consumer's Experience further.The results showed, through discharge process, above-mentioned driving circuit is switched to 3D display mode from 2D and only needs 3 seconds; 3D switches to 2D display mode and only needs 3 to 4 seconds; Greatly shorten delay time, promote the display effect of stereoscopic display device.
In embodiments of the present invention, above-mentioned stereoscopic display mode switching device shifter can be applied to the stereoscopic display device possessing bore hole 3D display, such as, 3D glasses, 3D mobile phone etc., user is made to realize 2D/3D switching fast in by stereoscopic display device use 3D application process, shorten handoff delay, promote user's viewing experience.
Fig. 7 is embodiment of the present invention display mode switching method schematic diagram, and as shown in Figure 7, described method, for switching the display mode of stereoscopic display device, comprising:
S71, detects the using state of described stereoscopic display device, and determines whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then sends display mode switching command,
S73, receives described display mode switching command, and discharges to described stereoscopic display device according to described display mode switching command, after having discharged, produces the voltage required for display mode switching.
In embodiments of the present invention, discharge to described stereoscopic display device according to described display mode switching command, the driving voltage required for the rear generation display mode that discharged switches, specifically comprises:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, each first electrode of the light-splitting device of stereoscopic display device is all discharged, by the driving voltage on each first electrode, such as, Vseg 0, Vseg 1, Vseg 2all switch to common electric voltage or total null voltage; After having discharged, the common electric voltage on each first electrode or total null voltage are all switched to deflection voltage U 0, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, each first electrode of the light-splitting device of stereoscopic display device is all discharged, by the deflection voltage U on each first electrode 0all switch to common electric voltage or total null voltage; After having discharged, the common electric voltage on each first electrode or total null voltage are switched to driving voltage, such as, Vseg 0, Vseg 1, Vseg 2.
In embodiments of the present invention, each described first electrode is all discharged, comprising:
When the second electrode voltage of the light-splitting device of described stereoscopic display device is total null voltage, each described first electrode voltage is switched to total null voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, each described first electrode voltage is switched to common electric voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage.
In embodiments of the present invention, described using state comprises the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, and the using state inspection of the described stereoscopic display device of described detection is specially: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
In embodiments of the present invention, the 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
In embodiments of the present invention, determine whether that needing to carry out display mode switching is specially according to described using state: the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching.
In embodiments of the present invention, described display mode switching command comprises: 2D display mode switches to 3D display mode switching command or 3D display mode to switch to 2D display mode switching command.
In embodiments of the present invention, by detecting the using state of stereoscopic display device, Timeliness coverage is the need of carrying out display mode switching, and when determining to need to carry out display mode switching, send display mode switching command, according to described display mode switching command, described stereoscopic display device is discharged, after having discharged, produce the voltage required for display mode switching.In addition, in embodiments of the present invention, owing to adopting driving governor controlling party wave generation circuit and commutation circuit to discharge to electrode, then target voltage is switched to, achieve rapid discharge and quick switched voltage, handoff delay is shortened greatly, improves Consumer's Experience further.The results showed, through discharge process, above-mentioned driving circuit is switched to 3D display mode from 2D and only needs 3 seconds; 3D switches to 2D display mode and only needs 3 to 4 seconds; Greatly shorten delay time, promote the display effect of stereoscopic display device.
The flow process of embodiment of the present invention display mode switching method is set forth further below in conjunction with Fig. 8.
As shown in Figure 8, when user opens bore hole 3D related application, this method starts; Wherein, 3D related application can be 3D game application, and 3D video playback is applied, 3D picture browsing application etc.;
After this method starts, enter ＂ and detect using state ＂ step; Now will detect the 2D/3D switching mode of the 3D application run, detecting current screen display mode is 2D display or 3D display; Wherein, 2D/3D switching mode can comprise:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
The current display mode of 2D/3D switching mode and the stereoscopic display device defined is applied according to 3D, determine whether to need to switch display mode, when needing the display mode switching stereoscopic display device, sending by rendezvous protocol and switching display mode instruction to driving circuit; Otherwise continue the current using state detecting stereoscopic display device, judge whether to need to switch display mode;
Above-mentioned rendezvous protocol refers to the communication protocol between processing unit and driving circuit.Remove by rendezvous protocol the display mode controlling stereoscopic display device after the driving governor of driving circuit receives instruction.Such as:
Rendezvous protocol is:
Director data length is 12 bytes;
1st, 2 bytes are that display mode: 0x0000 represents 2D display; 0xFFFF is 3D display;
11st, 12 bytes are that data stop identifier: 0xAAAA; Indicate that this instruction total data is sent completely;
Middle 8 bytes, represent a left side for 3D viewing area respectively by every two one group, on, right, lower four summits;
Current stereoscopic display device is 2D display mode, and when needing to be switched to 3D display mode, processing unit sends instruction to the Drive and Control Circuit of driving circuit by above-mentioned rendezvous protocol.
Equally, current stereoscopic display device is 3D display mode, and when needing to be switched to 2D display mode, processing unit sends instruction to the Drive and Control Circuit of driving circuit by above-mentioned rendezvous protocol.
When the 1st of instruction, when 2 bytes are 0x0000, then ignore the content analyzing follow-up 8 bytes, check after determining that this director data is complete----11,12 byte is 0xAAAA, and directly switching stereoscopic display device is 2D display mode;
Arrive this, the operational scheme of processing unit terminates; The treatment scheme of following elaboration driving circuit:
After driving governor receives the instruction of processing unit transmission, by rendezvous protocol interpretive order, and discharge according to different instruction drive electrode, after having discharged, drive electrode voltage switching is become target voltage, in embodiments of the present invention, different display mode switching commands comprises: 3D display mode switches to the switching command of 2D display mode and 2D display mode to switch to the switching command of 3D display mode.
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, each first electrode of the light-splitting device of stereoscopic display device is all discharged, by the driving voltage on each first electrode, such as, Vseg 0, Vseg 1, Vseg 2all switch to common electric voltage or total null voltage; After having discharged, the common electric voltage on each first electrode or total null voltage are all switched to deflection voltage U 0, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, each first electrode of the light-splitting device of stereoscopic display device is all discharged, by the deflection voltage U on each first electrode 0all switch to common electric voltage or total null voltage; After having discharged, the common electric voltage on each first electrode or total null voltage are switched to driving voltage, such as, Vseg 0, Vseg 1, Vseg 2.
In embodiments of the present invention, each described first electrode is all discharged, comprising:
When the second electrode voltage of the light-splitting device of described stereoscopic display device is total null voltage, each described first electrode voltage is switched to total null voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, each described first electrode voltage is switched to common electric voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage.
When 3D application is exited, switching stereoscopic display device is 2D display mode, and display mode switching method is out of service.
In embodiments of the present invention, by detecting the using state of stereoscopic display device, and determine whether to need to carry out display mode switching according to described using state, carry out sending display mode switching command when display mode switches at needs, and produce the voltage required for display mode switching according to display mode switching command, complete display mode to switch, effectively shorten the time delay that display mode switches, greatly improve user's viewing experience.
In embodiments of the present invention, by detecting the using state of stereoscopic display device, Timeliness coverage is the need of carrying out display mode switching, and when determining to need to carry out display mode switching, send display mode switching command, according to described display mode switching command, described stereoscopic display device is discharged, after having discharged, produce the voltage required for display mode switching, effectively shorten the time delay that display mode switches.In addition, in embodiments of the present invention, owing to adopting driving governor controlling party wave generation circuit and commutation circuit to discharge to electrode, then target voltage is switched to, achieve rapid discharge and quick switched voltage, handoff delay is shortened greatly, improves Consumer's Experience further.The results showed, through discharge process, above-mentioned driving circuit is switched to 3D display mode from 2D and only needs 3 seconds; 3D switches to 2D display mode and only needs 3 to 4 seconds; Greatly shorten delay time, promote the display effect of stereoscopic display device.
It should be noted that, the content such as information interaction, implementation in display mode switching device shifter in the embodiment of the present invention between modules, device, due to the inventive method embodiment based on same design, particular content is equally applicable to display mode switching method.Modules in the embodiment of the present invention can realize as independent hardware or software, and independent hardware or software also can be used as required to realize the combination of the function of unit.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (22)

1. a driving circuit, for driving the light-splitting device of stereoscopic display device, is characterized in that, comprising: driving governor and driving circuit for generating,
Described driving governor, for receiving display mode switching command, described display mode switching command is for switching the display mode of stereoscopic display device, described driving governor carries out discharge process according to described display mode switching command to described light-splitting device, controls the voltage required for the switching of described driving circuit for generating generation display mode.
2. driving circuit according to claim 1, it is characterized in that, described light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, be provided with liquid crystal layer and spacer between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, all keeps at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate is provided with the second electrode, described driving governor specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
3. driving circuit according to claim 2, it is characterized in that, described driving circuit for generating comprises square wave generation electronic circuit and switches electronic circuit, described square wave generation electronic circuit is used for the voltage producing display mode switching according to display mode switching command, and described switching electronic circuit is used for the voltage according to display mode switching command, each described first electrode voltage being switched to display mode switching.
4. driving circuit according to claim 3, is characterized in that, described control described driving circuit for generating all discharges to each described first electrode, comprising:
When described second electrode voltage is total null voltage, each described first electrode voltage is switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, each described first electrode voltage is switched to common electric voltage by the common electric voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit.
5. the driving circuit according to any one of Claims 1-4, is characterized in that, described light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
6. a display switching device, for switching the display mode of stereoscopic display device, is characterized in that, comprising:
Processing unit, for detecting the using state of described stereoscopic display device, and determines whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then sends display mode switching command,
Driving circuit, for receiving described display mode switching command, and discharges to described stereoscopic display device according to described display mode switching command, after having discharged, produces the voltage required for display mode switching.
7. device according to claim 6, it is characterized in that, described driving circuit comprises: driving governor and driving circuit for generating, described driving governor, for receiving display mode switching command, described display mode switching command for switching the display mode of stereoscopic display device, and carries out discharge process according to described display mode switching command to the light-splitting device of described stereoscopic display device, controls the voltage required for the switching of described driving circuit for generating generation display mode.
8. device according to claim 6, it is characterized in that, described light-splitting device comprises the first substrate and second substrate that are oppositely arranged, described second substrate is positioned at the top of described first substrate, be provided with liquid crystal layer and spacer between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, all keeps at a certain distance away between described first electrode of arbitrary neighborhood two, described second substrate is provided with the second electrode, described driving governor specifically for:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, control described driving circuit for generating and each described first electrode all discharged, after having discharged, apply driving voltage to each described first electrode.
9. device according to claim 8, it is characterized in that, described driving circuit for generating comprises square wave generation electronic circuit and switches electronic circuit, described square wave generation electronic circuit is used for producing according to display mode switching command the voltage switching display mode, and described switching electronic circuit is used for the voltage according to display mode switching command, each described first electrode voltage being switched to display mode switching.
10. device according to claim 9, is characterized in that, described control described driving circuit for generating all discharges to each described first electrode, comprising:
When described second electrode voltage is total null voltage, each described first electrode voltage is switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, each described first electrode voltage is switched to common electric voltage by the common electric voltage that described switching electronic circuit produces according to described square wave generation electronic circuit; Or,
When described second electrode voltage is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage by the total null voltage that described switching electronic circuit produces according to described square wave generation electronic circuit.
11. devices according to claim 6, is characterized in that, described processing unit comprises:
Detection module, for detecting the using state of described stereoscopic display device,
Determination module, for according to described using state, determines whether to need to carry out display mode switching,
Sending module, during for determining according to described determination module to need to carry out display mode switching, sends display mode switching command.
12. devices according to claim 11, it is characterized in that, described using state comprises the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, described detection module specifically for: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
13. devices according to claim 12, is characterized in that, the 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
14. devices according to claim 13, is characterized in that, described determination module specifically for: the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching.
15. devices according to any one of claim 7-14, it is characterized in that, described light-splitting device comprises liquid crystal lens or liquid crystal slit grating.
16. 1 kinds of stereoscopic display devices, is characterized in that, comprise the stereoscopic display mode switching device shifter any one of claim 6-15 as described in claim.
17. 1 kinds of display mode switching methods, for switching the display mode of stereoscopic display device, is characterized in that, comprising:
Detect the using state of described stereoscopic display device, and determine whether to need to carry out display mode switching according to described using state, if need to carry out display mode switching, then send display mode switching command,
Receive described display mode switching command, and according to described display mode switching command, described stereoscopic display device is discharged, after having discharged, produce the voltage required for display mode switching.
18. methods according to claim 17, is characterized in that, describedly discharge to described stereoscopic display device according to described display mode switching command, and the driving voltage required for the rear generation display mode that discharged switches, specifically comprises:
Resolve described display mode switching command,
When described display mode switching command be 3D display mode switch to the switching command of 2D display mode time, each first electrode of the light-splitting device of described stereoscopic display device is all discharged, after having discharged, applies deflection voltage to each described first electrode, or,
When described display mode switching command be 2D display mode switch to the switching command of 3D display mode time, each first electrode of the light-splitting device of described stereoscopic display device is all discharged, after having discharged, applies driving voltage to each described first electrode.
19. methods according to claim 18, is characterized in that, describedly all discharge to each described first electrode, comprising:
When the second electrode voltage of the light-splitting device of described stereoscopic display device is total null voltage, each described first electrode voltage is switched to total null voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, each described first electrode voltage is switched to common electric voltage; Or,
When the second electrode voltage of the light-splitting device of described stereoscopic display device is common electric voltage, described second electrode voltage and each described first electrode are switched to total null voltage.
20. methods according to claim 17, it is characterized in that, described using state comprises the running environment of described stereoscopic display device, user operation behavior and/or screen display mode, and the using state of the described stereoscopic display device of described detection is specially: detect the 2D/3D switching mode of 3D application and the display mode of current screen run.
21. methods according to claim 20, is characterized in that, the 2D/3D switching mode of described 3D application comprises:
3D application have focus and window is non-minimum state time, toggle screen is 3D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application has focus and window is under the prerequisite of non-minimum state, and when the ＂ 3D ＂ that user initiatively clicks application interface arranges button, toggle screen is 3D display mode; When the ＂ 2D ＂ that user initiatively clicks application interface arranges button, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode;
Or,
3D application start face tracking module, has focus and window is under the prerequisite of non-minimum state, and when face tracking module recognizes user's face, and when user is in best 3D viewing area, toggle screen is 3D display mode; When face tracking module identifies less than user's face, or when user is not in best 3D viewing area, toggle screen is 2D display mode; When 3D application exit, lose focus or for minimized state time, toggle screen is 2D display mode.
22. methods according to claim 21, it is characterized in that, determine whether that needing to carry out display mode switching is specially according to described using state: the 2D/3D switching mode applied according to described 3D and current display mode, determine whether to need to carry out display mode switching.
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