TW201624061A - Drive circuit, stereoscopic display device, switchable display device and method thereof - Google Patents

Abstract

The present invention discloses a drive circuit for a light splitting unit of a stereoscopic display device. The drive circuit includes a driving controller and a triggering circuit. The driving controller is to be used for accepting a switching display mode signal. The switching display mode signal is to be used for switching the display mode of a stereoscopic display device. The light splitting unit is discharged according to the switching display mode signal. The driving controller controls the triggering circuit to generate a voltage for switching the display mode. The present invention can effectively shorten time of the display mode switch, whereby viewing experience is greatly improved for the user.

Description

Driving circuit, stereoscopic display device, display switching device and method thereof

The present invention relates to the field of stereoscopic display technology, and more particularly to a drive circuit, a stereoscopic display device, a display switching device, and a method thereof.

Humans perceive the depth of an object by subtle differences in objects seen by the right and left eyes, thereby identifying stereoscopic images. This difference is called parallax. Stereoscopic display technology is to create the parallax of the left and right eyes of human beings by artificial means, and send two images with parallax to the left and right eyes respectively, so that the brain can observe the reality after acquiring different images seen by the left and right eyes. The feeling of a three-dimensional object.

With the deepening of people's understanding of liquid crystal materials, spectroscopic devices made of liquid crystal materials, such as liquid crystal lenses, have a wide range of applications, such as application in the field of stereoscopic display. FIG. 1 is a schematic structural diagram of a 2D/3D switchable stereoscopic display device provided by the prior art. The 2D/3D switchable stereoscopic display device comprises a display device 1' and a liquid crystal lens 2' disposed on the light exit side of the display device 1'. The light emitted by the display device 1' enters the left and right eyes of the viewer through the liquid crystal lens 2', respectively. , to achieve stereo display. The liquid crystal lens 2' includes a first substrate 21' and a second substrate 22' which are disposed opposite each other, and are disposed A liquid crystal layer of liquid crystal molecules 23' is contained between the first substrate 21' and the second substrate 22', and a spacer 24' for supporting the thickness of the liquid crystal layer. The spacer 24' is generally made of a transparent material. A plurality of spaced-apart first electrodes 25' are disposed on the first substrate 21', and a second electrode (not shown) is disposed on the second substrate 22'. When the 2D/3D switchable stereoscopic display device is used for 3D When displayed, a driving voltage is applied to the plurality of first electrodes 25', a common voltage is applied to the second electrodes, and a potential difference between the driving voltage and the common voltage is applied to form an electric field between the first substrate 21' and the second substrate 22'. The liquid crystal molecules 23' in the liquid crystal layer are driven to be aligned to form a liquid crystal lens unit arranged in an array. Therefore, by controlling the driving voltage on each of the first electrodes 25', the refractive index distribution of the liquid crystal lens 2' is changed correspondingly, thereby controlling the light output of the display device 1' to realize stereoscopic display and 2D/3D free switching. When the 2D/3D switchable stereoscopic display device is in the 2D display mode, the light emitted by the display device 1' passes through the spacer 24' and the liquid crystal molecules 23' near the spacer 24'. At this time, the refractive index of the spacer 24' The refractive index difference with the liquid crystal molecule 23' is large, and the light is refracted in the gap 24'. When the human eye views the liquid crystal lens 2', a bright spot or a color point phenomenon appears at the gap 24', which affects the viewer's viewing effect. And watching comfort.

In the prior art, in order to eliminate the bright spot phenomenon occurring at the gap 24' in the 2D display: in the 2D display, the driving circuit switches the driving voltages of the respective first electrodes 25' to the deflection voltage. Wherein, the pressure difference between the deflection voltage and the common voltage of the second electrode generates an electric field such that all liquid crystal molecules 23' are deflected at the same angle, and the refractive index difference between the deflected liquid crystal molecules 23' and the spacer 24' is Pre Within the range, it is solved that the difference in refractive index between the liquid crystal molecules 23' and the spacers 24' is large, and the light is refracted in the spacers 24', resulting in bright spots or colored dots at the gaps 24'.

During the implementation of the embodiments of the present invention, the inventors have found that when the stereoscopic display device is used to display a 2D image, the driving circuit switches the driving voltage of the first electrode to the deflection voltage, which takes about 1 to 2 minutes during the switching process. Or when the stereoscopic display device is used for a 3D image, the drive circuit switches the deflection voltage to the drive voltage, which takes about 3 to 4 minutes during the switching process. Therefore, during the handover process, there is a problem of handover delay, which affects the normal viewing of the viewer, and the user's viewing experience is not good.

The technical problem to be solved by the present invention is to provide a driving circuit, a stereoscopic display device, a display switching device and a method thereof for solving the problem that the switching delay time is too long in the display mode switching process in the prior art, and the switching delay can be shortened and improved. User viewing experience.

In order to solve the above technical problem, the present invention provides a driving circuit for driving a spectroscopic device of a stereoscopic display device, comprising: a driving controller and a driving trigger circuit, the driving controller is configured to receive a display mode switching instruction, and the display mode switching instruction is used for switching The display mode of the stereoscopic display device performs discharge processing on the spectroscopic device according to the display mode switching command, and controls the driving trigger circuit to generate a voltage required for switching the display mode.

In this embodiment, the light splitting device includes a first set oppositely a substrate and a second substrate. The second substrate is located above the first substrate, and a liquid crystal layer and a spacer are disposed between the first substrate and the second substrate. A plurality of first electrodes are disposed on the first substrate, and any two adjacent first electrodes are spaced apart by a certain distance. A second electrode is disposed on the second substrate. The driving controller is specifically configured to: analyze the display mode switching instruction, and when the display mode switching instruction is to switch the 3D display mode to the 2D display mode switching instruction, the control driving trigger circuit discharges each of the first electrodes, and after the discharging is completed, The first electrode applies a deflection voltage, or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the control driving trigger circuit discharges each of the first electrodes, and after the discharge is completed, the first The electrode applies a driving voltage.

In this embodiment, the driving trigger circuit includes a square wave triggering sub-circuit and a switching sub-circuit. The square wave trigger sub-circuit is used to generate a voltage required for display mode switching according to the display mode switching command. The switching sub-circuit is configured to switch each of the first electrode voltages to a voltage required for display mode switching according to a display mode switching command.

In this embodiment, the driving trigger circuit is controlled to discharge each of the first electrodes, including: when the second electrode voltage is zero potential voltage, the switching sub-circuit will be based on the zero potential voltage generated by the square wave triggering sub-circuit The first electrode voltage is switched to a zero potential voltage; or, when the second electrode voltage is a common voltage, the switching sub-circuit switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit; or, when When the two electrode voltage is a common voltage, the switching sub-circuit switches the second electrode voltage and each of the first electrodes to the zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit.

In this embodiment, the spectroscopic device includes a liquid crystal lens or a liquid crystal slit grating.

The embodiment of the invention further provides a display switching device for switching the display mode of the stereoscopic display device, comprising: a processing unit and a driving circuit. The processing unit is configured to detect a usage state of the stereoscopic display device, and determine whether display mode switching is required according to the use state, and if the display mode switching is required, send a display mode switching instruction. The driving circuit is configured to receive the display mode switching instruction, and discharge the stereoscopic display device according to the display mode switching instruction, and generate a voltage required for the display mode switching after the discharging is completed.

In this embodiment, the driving circuit includes: a driving controller and a driving trigger circuit. The driving controller is configured to receive a display mode switching instruction, and the display mode switching instruction is configured to switch the display mode of the stereoscopic display device, and perform discharge processing on the optical splitting device of the stereoscopic display device according to the display mode switching instruction, and control the driving trigger circuit to generate a display mode switching manner. The voltage required.

In this embodiment, the light splitting device includes a first substrate and a second substrate disposed opposite to each other. The second substrate is located above the first substrate, and a liquid crystal layer and a spacer are disposed between the first substrate and the second substrate, and the first substrate is provided with a plurality of first electrodes, and between any two adjacent first electrodes A second electrode is disposed on the second substrate, and the driving controller is specifically configured to: analyze the display mode switching instruction, and control the driving trigger circuit when the display mode switching instruction is a switching instruction that the 3D display mode is switched to the 2D display mode. Discharge each of the first electrodes, after the discharge is completed, A deflection voltage is applied to each of the first electrodes, or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the control drive trigger circuit discharges each of the first electrodes, and after the discharge is completed, the first An electrode applies a driving voltage.

In this embodiment, the driving trigger circuit includes a square wave triggering sub-circuit and a switching sub-circuit. The square wave triggering sub-circuit is configured to generate a voltage required to switch the display mode according to the display mode switching instruction, and the switching sub-circuit is configured to switch each of the first electrode voltages to a voltage required for switching the display mode according to the display mode switching instruction.

In this embodiment, the control driving trigger circuit discharges each of the first electrodes, including: when the second electrode voltage is zero potential voltage, the switching sub-circuit will be based on the zero potential voltage generated by the square wave triggering sub-circuit The first electrode voltage is switched to a zero potential voltage; or, when the second electrode voltage is a common voltage, the switching sub-circuit switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit; or, when When the two electrode voltage is a common voltage, the switching sub-circuit switches the second electrode voltage and each of the first electrodes to the zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit.

In this embodiment, the processing unit includes: a detection module, a determination module, and a transmission module. The detection module is configured to detect the use state of the stereoscopic display device. The determining module is configured to determine whether a display mode switching is required according to the usage state. The sending module is configured to send a display mode switching instruction when determining that the display mode switching needs to be performed according to the determining module.

In this embodiment, the use state includes a stereoscopic display device. The operating environment, the user operating behavior and/or the screen display mode, the detecting module is specifically configured to: detect the 2D/3D switching mode of the running 3D application and the display mode of the current screen.

In this embodiment, the 2D/3D switching mode of the 3D application includes: when the 3D application has a focus and the window is in a non-minimized state, the switching screen is in a 3D display mode; when the 3D application exits, the focus is lost or is minimized. When the screen is switched to the 2D display mode; or, the 3D application has the focus and the window is not minimized, when the user actively clicks the "3D" setting button of the application interface, the screen is switched to the 3D display mode; When the "2D" setting button of the application interface is actively clicked, the screen is switched to the 2D display mode; when the 3D application is exited, the focus is lost or the state is minimized, the screen is switched to the 2D display mode; or, the 3D application starts the face tracking mode. When the group has the focus and the window is in a non-minimized state, when the face tracking module recognizes the user's face and the user is in the best 3D display area, the screen is switched to the 3D display mode; when the face tracking mode is used The group does not recognize the user's face, or when the user is not in the optimal 3D display area, the screen is switched to the 2D display mode. When the 3D application exits, the focus is lost or minimized. State, the display mode is switched to the 2D screen.

In this embodiment, the determining module is specifically configured to: determine whether to perform display mode switching according to the 2D/3D switching mode of the 3D application and the current display mode.

In this embodiment, the spectroscopic device includes a liquid crystal lens or a liquid crystal slit grating.

The present invention provides a stereoscopic display device comprising any of the display mode switching devices as described above.

The present invention further provides a display mode switching method for switching a display mode of a stereoscopic display device, including: detecting a usage state of the stereoscopic display device, and determining whether display mode switching is required according to a use state, if display mode switching is required Then, the display mode switching command is transmitted, the display mode switching command is received, and the stereoscopic display device is discharged according to the display mode switching command, and after the discharge is completed, the voltage required for the display mode switching is generated.

In this embodiment, the stereoscopic display device is discharged according to the display mode switching instruction, and the driving voltage required for the display mode switching is generated after the discharging is completed, and specifically includes: analyzing the display mode switching instruction, and when the display mode switching instruction is the 3D display mode. When switching to the switching command of the 2D display mode, each of the first electrodes of the spectroscopic device of the stereoscopic display device is discharged, and after the discharge is completed, a deflection voltage is applied to each of the first electrodes, or when the display mode switching command is the 2D display mode. When switching to the switching command of the 3D display mode, each of the first electrodes of the spectroscopic device of the stereoscopic display device is discharged, and after the discharge is completed, a driving voltage is applied to each of the first electrodes.

In this embodiment, the discharging is performed on each of the first electrodes, including: when the second electrode voltage of the optical splitting device of the stereoscopic display device is zero potential voltage, switching each first electrode voltage to a zero potential voltage; or When the second electrode voltage of the optical splitting device of the stereoscopic display device is a common voltage, switching each of the first electrode voltages to a common voltage; or, when the second electrode of the optical splitting device of the stereoscopic display device When the voltage is a common voltage, the second electrode voltage and each of the first electrodes are switched to a zero potential voltage.

In this embodiment, the usage state includes an operating environment of the stereoscopic display device, a user operation behavior, and/or a screen display mode. The detecting the use state of the stereoscopic display device is specifically: detecting a 2D/3D switching mode of the running 3D application and a display mode of the current screen.

In this embodiment, the 2D/3D switching mode of the 3D application includes: when the 3D application has a focus and the window is in a non-minimized state, the switching screen is in a 3D display mode; when the 3D application exits, the focus is lost or is minimized. When the screen is switched to the 2D display mode; or, the 3D application has the focus and the window is not minimized, when the user actively clicks the "3D" setting button of the application interface, the screen is switched to the 3D display mode; When the "2D" setting button of the application interface is actively clicked, the screen is switched to the 2D display mode; when the 3D application is exited, the focus is lost or the state is minimized, the screen is switched to the 2D display mode; or, the 3D application starts the face tracking mode. When the group has the focus and the window is in a non-minimized state, when the face tracking module recognizes the user's face and the user is in the best 3D display area, the screen is switched to the 3D display mode; when the face tracking mode is used The group does not recognize the user's face, or the screen is switched to the 2D display mode when the user is not in the optimal 3D display area; when the 3D application exits, the focus is lost or minimized. State, the display mode is switched to the 2D screen.

In this embodiment, determining whether the display mode switching needs to be performed according to the usage state is specifically: according to the 2D/3D switching mode of the 3D application and the current display Mode to determine if display mode switching is required.

In the embodiment of the present invention, by detecting the use state of the stereoscopic display device, and determining whether the display mode switching is required according to the use state, the display mode switching instruction is sent when the display mode switching is required, and the instruction is switched according to the display mode. The spectroscopic device performs discharge processing, controls the voltage required to switch the display mode, completes the display mode switching, effectively shortens the delay of the display mode switching, and improves the user viewing experience.

1'‧‧‧ display device

2'‧‧‧ liquid crystal lens

21'‧‧‧First substrate

22'‧‧‧second substrate

23'‧‧‧Liquid Crystal Molecules

24’‧‧‧ spacer

25'‧‧‧First electrode

1‧‧‧ display device

2‧‧‧Splitting device

21‧‧‧First substrate

22‧‧‧second substrate

23‧‧‧ liquid crystal molecules

24‧‧‧ spacer

25‧‧‧First electrode

3, 63‧‧‧ drive circuit

31, 631‧‧‧ drive controller

32, 632‧‧‧ drive trigger circuit

321, 6321‧‧‧ square wave trigger subcircuit

322, 6322‧‧‧Switch subcircuit

61‧‧‧Processing unit

611‧‧‧Test module

612‧‧‧Determining the module

613‧‧‧Transmission module

S71‧‧‧Detecting the use status of the stereoscopic display device, and determining whether the display mode switching is required according to the use state, and if the display mode switching is required, transmitting the display mode switching command

S73‧‧‧ Receive display mode switching command, and discharge the stereo display device according to the display mode switching command. After the discharge is completed, the voltage required for the display mode switching is generated.

S81‧‧‧Detection use status

S82‧‧‧Switch display mode

S83‧‧‧Send switch display mode command

S84‧‧‧ drive electrode for discharge

S85‧‧‧ drive electrode voltage switched to target voltage

S86‧‧‧Switch display mode completed

L1‧‧‧Splitting device unit

S11, S12, S13, S14, S15, S16‧‧‧ electrodes

U ₀ ‧‧‧ deflection voltage

V _seg0 , V _seg1 , V _seg2 ‧‧‧ first electrode

COM voltage ‧ ‧ public voltage

R‧‧‧Right eye pixels

L‧‧‧Left eye pixels

1 is a schematic structural view of a 2D/3D switchable stereoscopic display device of the prior art; FIG. 2 is a schematic diagram of a working principle of a light splitting device of the stereoscopic display device; FIG. 3 is a schematic structural view of a driving circuit according to an embodiment of the present invention; FIG. 5 is a schematic diagram showing a voltage change of a driving voltage after a deflection voltage of an electrode is discharged to a zero potential voltage; FIG. 5 is a schematic diagram showing a voltage variation of a driving voltage after discharging a deflection voltage of each first electrode to a common voltage; FIG. 6 is an embodiment of the present invention; FIG. 7 is a schematic diagram of a display switching method according to an embodiment of the present invention; FIG. 8 is a flowchart of a display switching method according to an embodiment of the present invention.

The invention will now be described in detail in conjunction with the drawings and embodiments.

It should be noted that, if not conflicting, the embodiments of the present invention and the various features of the embodiments may be combined with each other, and are all within the protection scope of the present invention. In addition, although the functional module partitioning is performed in the device schematic, the logical sequence is shown in the flowchart, but in some cases, it may be different from the module partitioning in the device, or the sequential execution in the flowchart. The steps that are described or described.

In order to facilitate the understanding of the embodiments of the present invention, first, the working principle of the optical splitting device of the stereoscopic display device in the embodiment of the present invention will be briefly described.

2 is a schematic diagram showing the working principle of the optical splitting device of the stereoscopic display device. As shown in FIG. 2, the optical splitting device 2 includes a first substrate 21 and a second substrate 22 which are oppositely disposed. The second substrate 22 is disposed above the first substrate 21, and a liquid crystal layer of the liquid crystal molecules 23 and a spacer 24 are disposed between the first substrate 21 and the second substrate 22. The first substrate 21 is provided with a plurality of first electrodes 25, and any two adjacent first electrodes 25 are spaced apart by a certain distance. The second substrate 22 is provided with a second electrode (not shown), and second The electrode 22 may be a full-surface electrode or a plurality of strip electrodes. In the spectroscopic device unit L1, symmetric voltages are applied to the strip electrodes of the first electrode 25 such as S11, S12, S13, S14, S15, and S16. . Where R is the right eye pixel and L is the left eye pixel. Specifically: V(S11)=V(S16)>V(S12)=V(S15)>V(S13)=V(S14), where V(S11)=V(S16)= Vseg ₀ ,V( S12)=V(S15)= Vseg ₁ , V(S13)=V(S14)= Vseg ₂ , the voltage of the light splitting device unit L1 is declining from the two ends to the center and the voltage is symmetrically distributed, so that each split light The electric field in the device unit L1 exhibits a more smoothly transformed state, and the light emitted from the display device 1 passes through the spectroscopic device 2 to present a stereoscopic image. Therefore, by controlling the first driving voltage on each of the first electrodes 25, the refractive index distribution of the spectroscopic device 2 is correspondingly changed, thereby controlling the light output of the display device 1, realizing stereoscopic display and 2D/3D free switching.

In order to eliminate the bright spot phenomenon occurring at the gap 24 in the 2D display: in the 2D display, the first driving voltage on each of the first electrodes 25, for example, the driving voltages Vseg ₀ , Vseg ₁ including the strip electrodes Vseg ₂ is switched to a deflection voltage U ₀ , U ₀ and a driving voltage of the second electrode, such as a voltage difference between a common voltage (ie, a COM voltage) to generate a first electric field, where U ₀ > V _th , where V _th is a threshold The voltage causes the entire liquid crystal molecules 23 to deflect at the same angle, and the refractive index difference between the deflected liquid crystal molecules 23 and the spacers 24 is within a preset range. The predetermined range is a range in which the refractive index difference between the spacer 24 and the liquid crystal molecules 23 is less than 0.1, and the refractive index difference between the liquid crystal molecules 23 and the spacers 24 is large, and the light is refracted in the spacers 24, This causes a bright spot or a color point to appear at the gap 24 . The common voltage (or COM voltage) may specifically be a non-zero potential voltage or a zero potential voltage.

FIG. 3 is a schematic structural diagram of a driving circuit according to an embodiment of the present invention. As shown in FIG. 3, the driving circuit 3 is configured to drive a light separating device of the stereoscopic display device, and includes: a driving controller 31 and a driving trigger circuit 32. The driving controller 31 is configured to receive a display mode switching instruction, where the display mode switching instruction is used to switch the stereoscopic display device. The display mode is performed, and the spectroscopic device is subjected to discharge processing according to the display mode switching command, and the drive trigger circuit 32 is controlled to generate a voltage required for switching the display mode.

In the embodiment of the present invention, the light splitting device includes a first substrate and a second substrate disposed opposite to each other, the second substrate is located above the first substrate, and a liquid crystal layer and a spacer of liquid crystal molecules are disposed between the first substrate and the second substrate. . The first substrate includes a plurality of first electrodes, and any two adjacent first electrodes are spaced apart by a certain distance. A second electrode is included on the second substrate. The second electrode may be a full-surface electrode or a plurality of strip electrodes, and a common voltage or a zero potential voltage is applied to the second electrode. Among them, the zero potential voltage may specifically be a ground potential.

The driving controller 31 is specifically configured to: analyze the display mode switching instruction, and when the display mode switching instruction is a switching instruction that the 3D display mode is switched to the 2D display mode, the control driving trigger circuit 32 discharges and discharges each of the first electrodes. After completion, the deflection voltage is applied to each of the first electrodes, or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the control driving trigger circuit 32 discharges each of the first electrodes, after the discharge is completed. A driving voltage is applied to each of the first electrodes.

In the embodiment of the present invention, the driving trigger circuit 32 includes a square wave triggering sub-circuit 321 and a switching sub-circuit 322. The square wave triggering sub-circuit 321 is configured to generate a voltage required for the display mode switching according to the display mode switching command, and the switching sub-circuit 322 is configured to switch each of the first electrode voltages to a voltage required for the display mode switching according to the display mode switching instruction. .

In the embodiment of the present invention, when the display mode switching instruction is a switching instruction in which the 3D display mode is switched to the 2D display mode, if the second electrode voltage is zero potential voltage, the square wave triggering sub-circuit 321 generates a zero potential voltage, the switcher The circuit 322 switches each first electrode voltage to a zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit 321; for example, discharging Vseg ₀ , Vseg ₁ and Vseg _{2 of} each first electrode to a zero potential voltage, discharging After completion, for example, after 1 to 2 seconds, the discharge is completed, and then the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ . If the second electrode voltage is a common voltage, the square wave triggering sub-circuit 321 generates a common voltage, and the switching sub-circuit 322 switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit 321; for example, each Vseg ₀ , Vseg ₁ and Vseg _{2 of the} first electrode are all discharged to the COM voltage. After the discharge is completed, for example, after 1 to 2 seconds, the discharge is completed, and then the common voltage on each of the first electrodes is switched to the deflection voltage U. ₀ .

Alternatively, if the second electrode voltage is a common voltage, the square wave triggering sub-circuit 321 generates a zero potential voltage, and the switching sub-circuit 322 switches the second electrode and each of the first electrode voltages according to the zero potential voltage generated by the square wave triggering sub-circuit 321 To zero potential voltage; for example, discharging the second electrode COM voltage to a zero potential voltage and discharging each of the first electrodes Vseg ₀ , Vseg ₁ and Vseg ₂ to a zero potential voltage, after the completion of the discharge, for example, after 1 to 2 After the second time, the discharge is completed, and then the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ .

In the embodiment of the present invention, when the display mode switching instruction is a switching instruction in which the 2D display mode is switched to the 3D display mode, if the second electrode voltage is zero potential voltage, the square wave triggering sub-circuit 321 generates a zero potential voltage, the switcher The circuit 322 switches each first electrode voltage to a zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit 321; for example, discharging the deflection voltage U _{0 of} each first electrode to a zero potential voltage, after the discharge is completed, for example , 1-2 seconds after the discharge is completed, then the zero potential voltage on the respective electrodes are switched to the first driving voltage Vseg _0, Vseg ₁ and Vseg _2.

If the second electrode voltage is a common voltage, the square wave triggering sub-circuit 321 generates a common voltage, and the switching sub-circuit 322 switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit 321; for example, each The deflection voltage U _{0 of the} first electrode is discharged to the COM voltage. After the discharge is completed, for example, after 1 to 2 seconds, the discharge is completed, and then the common voltages on the respective first electrodes are respectively switched to the drive voltages Vseg ₀ , Vseg . ₁ and Vseg ₂ .

Alternatively, if the second electrode voltage is a common voltage, the square wave triggering sub-circuit 321 generates a zero potential voltage, and the switching sub-circuit 322 switches the second electrode and each of the first electrode voltages according to the zero potential voltage generated by the square wave triggering sub-circuit 321 To zero potential voltage; for example, discharging the second electrode COM voltage to zero potential voltage and discharging the deflection voltage U _{0 of} each first electrode to zero potential voltage, after the discharge is completed, for example, after 1 to 2 seconds, the discharge is completed. Then, the zero potential voltages on the respective first electrodes are respectively switched to the driving voltages Vseg ₀ , Vseg _{1 ,} and Vseg ₂ . For example, FIG. 4 is a schematic diagram showing a voltage change in which a driving voltage is applied after discharging the deflection voltage of each of the first electrodes to a zero potential voltage.

As shown in FIG. 4, the deflection voltage of each of the first electrodes is U ₀ , and is switched to zero voltage after the discharge process. For example, after 2 seconds, the discharge is completed, and then the zero voltages on the respective first electrodes are respectively switched to Vseg _0. , Vseg ₁ and Vseg ₂ . 5 is a schematic diagram showing voltage changes of a driving voltage after discharging a deflection voltage of each first electrode to a common voltage. As shown in FIG. 5, the deflection voltage U _{0 of the} first electrode is switched to a common voltage after the discharge processing (ie, a COM voltage). After one second, the discharge is completed, and then the COM voltage on the first electrode is switched to Vseg ₀ , Vseg _{1 ,} and Vseg _{2 , respectively} .

In an embodiment of the invention, the spectroscopic device comprises a liquid crystal lens or a liquid crystal slit grating.

In the embodiment of the present invention, the driving controller performs discharge processing on the optical splitting device according to the display mode switching instruction, and controls the driving trigger circuit to generate a voltage required to switch the display mode, completes the display mode switching, and effectively shortens the delay of the display mode switching. Improved user viewing experience. In addition, in the embodiment of the present invention, since the driving controller controls the square wave trigger circuit and the switching circuit to discharge the electrode, and then switches to the target voltage, the rapid discharge and the fast switching voltage are realized, so that the switching delay is greatly shortened and further improved. The user experience. Tests show that after the discharge process, the drive circuit switches from 2D to 3D display mode in only 3 seconds; 3D switch to 2D display mode takes only 3 to 4 seconds; greatly shortens the delay time and enhances the display effect of the stereoscopic display device.

FIG. 6 is a schematic structural diagram of a display switching device according to an embodiment of the present invention. As shown in FIG. 6 , the display switching device is configured to switch a display mode of the stereoscopic display device, including: Processing unit 61 and drive circuit 63. The processing unit 61 is configured to detect a use state of the stereoscopic display device, and determine whether display mode switching is required according to the use state, and if a display mode switch is required, send a display mode switching instruction. The drive circuit 63 is configured to receive a display mode switching command, and discharge the stereoscopic display device according to the display mode switching command. After the discharge is completed, a voltage required for the display mode switching is generated.

In the embodiment of the present invention, the driving circuit 63 includes a driving controller 631 and a driving trigger circuit 632. The driving controller 631 is configured to receive a display mode switching instruction for switching a display mode of the stereoscopic display device, and performing discharge processing on the optical splitting device of the stereoscopic display device according to the display mode switching instruction, and controlling the driving trigger circuit 632 Produces the voltage required to switch the display mode.

In the embodiment of the invention, the light splitting device comprises a first substrate and a second substrate disposed opposite to each other. The second substrate is located above the first substrate, and a liquid crystal layer and a spacer of liquid crystal molecules are disposed between the first substrate and the second substrate, and the first substrate includes a plurality of first electrodes, and any two adjacent first electrodes The two are spaced apart by a certain distance, and the second substrate includes a second electrode. The second electrode may be a full-surface electrode or a plurality of strip electrodes. A common voltage is applied to both of the second electrodes or a zero potential voltage is applied thereto.

The driving controller 631 is specifically configured to: analyze the display mode switching instruction, and when the display mode switching instruction is to switch the 3D display mode to the switching instruction of the 2D display mode, the control driving trigger circuit 632 discharges each of the first electrodes, and the discharging is completed. Thereafter, a deflection voltage is applied to each of the first electrodes, or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the control driving trigger circuit 632 discharges each of the first electrodes, and after the discharge is completed, A driving voltage is applied to each of the first electrodes.

In the embodiment of the present invention, the driving trigger circuit 632 includes a square wave triggering sub-circuit 6321 and a switching sub-circuit 6322. The square wave triggering sub-circuit 6321 is configured to generate a voltage required for the display mode switching according to the display mode switching instruction, and the switching sub-circuit 6322 is configured to switch each first electrode voltage to a voltage required for the display mode switching according to the display mode switching instruction. .

In the embodiment of the present invention, when the display mode switching instruction is a switching instruction in which the 3D display mode is switched to the 2D display mode, if the second electrode voltage is zero potential voltage, the square wave triggering sub-circuit 6321 generates a zero potential voltage, the switcher The circuit 6322 switches the first electrode voltages to the zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit 6321; for example, discharging the Vseg ₀ , Vseg ₁ and Vseg _{2 of} each of the first electrodes to zero potential voltage, discharging After completion, for example, after 1 to 2 seconds, the discharge is completed, and then the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ .

If the second electrode voltage is a common voltage, the square wave triggering sub-circuit 321 generates a common voltage, and the switching sub-circuit 6322 switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit 6321; for example, each Vseg ₀ , Vseg ₁ and Vseg _{2 of the} first electrode are all discharged to the COM voltage. After the discharge is completed, for example, after 1 to 2 seconds, the discharge is completed, and then the common voltage on each of the first electrodes is switched to the deflection voltage U. ₀ .

Alternatively, if the second electrode voltage is a common voltage, the square wave triggering subcircuit 6321 generates a zero potential voltage, and the switching subcircuit 6322 switches the second electrode and the first electrode voltage according to the zero potential voltage generated by the square wave triggering subcircuit 6321. to zero voltage potential; for example, the second electrode COM voltage and discharged to zero voltage potential to the first electrode of each Vseg _0, Vseg ₁ Vseg ₂ and are discharged to zero voltage potential, after the discharge is completed, for example, through 1-2 After the second time, the discharge is completed, and then the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ .

In the embodiment of the present invention, when the display mode switching instruction is a switching instruction in which the 2D display mode is switched to the 3D display mode, if the second electrode voltage is zero potential voltage, the square wave triggering sub-circuit 6321 generates a zero potential voltage, the switcher The circuit 6322 switches the first electrode voltages to zero potential voltages according to the zero potential voltage generated by the square wave triggering subcircuit 6321; for example, discharging the deflection voltages U _{0 of the} respective first electrodes to zero potential voltages, after the discharge is completed, for example After 1 to 2 seconds, the discharge is completed, and then the zero potential voltages on the respective first electrodes are switched to the drive voltages Vseg ₀ , Vseg _{1 ,} and Vseg _{2 , respectively} .

If the second electrode voltage is a common voltage, the square wave triggering sub-circuit 6321 generates a common voltage, and the switching sub-circuit 6322 switches the respective first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit 6321; for example, each The deflection voltage U _{0 of the} first electrode is discharged to the COM voltage. After the discharge is completed, for example, after 1 to 2 seconds, the discharge is completed, and then the common voltages on the respective first electrodes are respectively switched to the drive voltages Vseg ₀ , Vseg . ₁ and Vseg ₂ .

Alternatively, if the second electrode voltage is a common voltage, the square wave triggering subcircuit 6321 generates a zero potential voltage, and the switching subcircuit 6322 converts the second electrode and each of the first electrodes according to the zero potential voltage generated by the square wave triggering subcircuit 6321. The voltage of one electrode is switched to the zero potential voltage; for example, discharging the voltage of the second electrode COM to the zero potential voltage and discharging the deflection voltage U _{0 of} each first electrode to the zero potential voltage, after the discharge is completed, for example, after 1 to 2 After the second time, the discharge is completed, and then the zero potential voltages on the respective first electrodes are switched to the drive voltages Vseg ₀ , Vseg ₁ and Vseg _{2 , respectively} .

In the embodiment of the present invention, the processing unit 61 includes a detection module 611, a determination module 612, and a transmission module 613. The detecting module 611 is configured to detect a use state of the stereoscopic display device. The determining module 612 is configured to determine whether display mode switching is required according to the use state. The sending module 613 is configured to send a display mode switching instruction when determining that the display mode switch needs to be performed according to the determining module 612.

In the embodiment of the present invention, the usage state may include an operating environment of the stereoscopic display device, a user operation behavior, and/or a screen display mode. The detecting module is specifically configured to: detect a 2D/3D switching mode of the running 3D application and a display mode of the current screen.

The 2D/3D switching mode of the 3D application includes: when the 3D application has a focus and the window is in a non-minimized state, the switching screen is in a 3D display mode; when the 3D application exits, loses focus or is minimized, the switching screen is 2D. Display mode; or, when the 3D application has focus and the window is in a non-minimized state, when the user When the "3D" setting button of the application interface is actively clicked, the screen is switched to the 3D display mode; when the user actively clicks the "2D" setting button of the application interface, the screen is switched to the 2D display mode; when the 3D application exits, the focus is lost or When the state is minimized, the screen is switched to the 2D display mode; or, when the 3D application starts the face tracking module, the focus is on the screen and the window is in a non-minimized state, when the face tracking module recognizes the user's face and uses When the user is in the best 3D display area, the screen is switched to the 3D display mode; when the face tracking module does not recognize the user's face, or the user is not in the optimal 3D display area, the screen is switched to the 2D display mode; when the 3D application is used When exiting, losing focus, or minimizing the state, switch the screen to 2D display mode.

In the embodiment of the present invention, the determining module 612 is specifically configured to: determine whether to perform display mode switching according to the 2D/3D switching mode of the 3D application and the current display mode. The display mode switching includes: switching the 2D display mode to the 3D display mode or switching the 3D display mode to the 2D display mode.

In the embodiment of the present invention, the stereoscopic display mode switching device processing unit 61 may be a processor, where the processor may include a program or code for performing detection of the usage state of the stereoscopic display device, according to the The usage status determines whether display mode switching is required, and when it is determined that display mode switching is required, a display mode switching instruction is sent. When the above detection operation needs to be performed, the program or code is transferred to the processor for processing.

In an embodiment of the invention, the spectroscopic device comprises a liquid crystal lens or a liquid crystal slit grating.

In the embodiment of the present invention, when the stereoscopic display device is switched to 3D, the drive controller 631 first performs discharge processing on the optical splitting device, and switches the deflection voltage U _{0 of} each of the first electrodes to a COM voltage or a zero potential voltage; After a few seconds, for example, after 1 to 2 seconds, the discharge is completed, and then the COM voltage or the zero potential voltage of each first electrode is switched to Vseg ₀ , Vseg ₁ and Vseg ₂ to form a spectroscopic device required for 3D display, thereby realizing Switch to 3D display mode. In this process, the drive controller 631 controls the drive trigger circuit 632, including the square wave trigger circuit 6321 and the switching circuit 6322, generates the required drive voltage, and completes the 2D to 3D state switching of the display device.

Similarly, when the stereoscopic display device is switched to the 2D display mode, the drive controller 631 first performs discharge processing on the optical splitting device, and switches the driving voltages of the first electrodes, for example, Vseg ₀ , Vseg _{1 ,} and Vseg ₂ to COM. Voltage or zero potential voltage; after a few seconds, for example, after 1 to 2 seconds, the discharge is completed, and then the COM voltage or zero potential voltage is switched to the deflection voltage U ₀ . Where U ₀ > V _th , thereby completing the 3D switching to the 2D display mode.

In the embodiment of the present invention, by detecting the usage state of the stereoscopic display device, it is timely found whether the display mode switching needs to be performed, and when it is determined that the display mode switching needs to be performed, the display mode switching instruction is sent, and the stereoscopic mode is switched according to the display mode. The display device is discharged, and after the discharge is completed, a voltage required for switching the display mode is generated. In addition, in the embodiment of the present invention, since the driving controller controls the square wave trigger circuit and the switching circuit to discharge the electrode, and then switches to the target voltage, the fast discharge and the fast switching voltage are realized, so that the switching delay is greatly shortened. Further enhance the user experience. Tests have shown that after the discharge process, the above drive circuit switches from 2D to 3D display mode in only 3 seconds; 3D switch to 2D display mode takes only 3 to 4 seconds, shortening the delay time and improving the display effect of the stereoscopic display device.

In the embodiment of the present invention, the stereoscopic display mode switching device can be applied to a stereoscopic display device with naked eye 3D display, such as 3D glasses or a 3D mobile phone, etc., so that the user realizes fast 2D in the process of using the 3D application through the stereoscopic display device. /3D switching, shortening the switching delay and improving the user's viewing experience.

FIG. 7 is a schematic diagram of a display mode switching method according to an embodiment of the present invention. As shown in FIG. 7 , the method is used for switching a display mode of a stereoscopic display device, including: detecting a usage state of the stereoscopic display device, and determining whether it is required according to the use state. Display mode switching, if display mode switching is required, a display mode switching command is transmitted (step S71), a display mode switching command is received, and the stereoscopic display device is discharged according to the display mode switching command, and the display mode switching is required after the discharge is completed. Voltage (step S73).

In the embodiment of the present invention, the stereoscopic display device is discharged according to the display mode switching instruction, and the driving voltage required for the display mode switching is generated after the discharging is completed, and specifically includes: analyzing the display mode switching instruction, and when the display mode switching instruction is the 3D display mode switching When the switching command is in the 2D display mode, each of the first electrodes of the optical splitting device of the stereoscopic display device is discharged, and the driving voltages on the respective first electrodes, for example, Vseg ₀ , Vseg _{1 ,} and Vseg ₂ are switched to a common voltage. Or a zero potential voltage; after the discharge is completed, the common voltage or the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ , or when the display mode switching instruction is a switching instruction in which the 2D display mode is switched to the 3D display mode Discharging each of the first electrodes of the optical splitting device of the stereoscopic display device, and switching the deflection voltage U ₀ on each of the first electrodes to a common voltage or a zero potential voltage; after the discharge is completed, the common electrodes on the first electrodes are The voltage or zero potential voltage is switched to the drive voltage, for example, Vseg ₀ , Vseg ₁ and Vseg ₂ .

In the embodiment of the present invention, discharging the first electrodes, including: when the second electrode voltage of the optical splitting device of the stereoscopic display device is zero potential voltage, switching each first electrode voltage to a zero potential voltage; or When the second electrode voltage of the light splitting device of the stereoscopic display device is a common voltage, each first electrode voltage is switched to a common voltage; or, when the second electrode voltage of the light splitting device of the stereoscopic display device is a common voltage, the second electrode The electrode voltage and each of the first electrodes are switched to a zero potential voltage.

In an embodiment of the invention, the usage state includes an operating environment of the stereoscopic display device, a user operating behavior, and/or a screen display mode. The detecting state detection of the stereoscopic display device is specifically: detecting a 2D/3D switching mode of the running 3D application and a display mode of the current screen.

In the embodiment of the present invention, the 2D/3D switching mode of the 3D application includes: when the 3D application has a focus and the window is in a non-minimized state, the switching screen is in a 3D display mode; when the 3D application exits, the focus is lost or minimized. In the state, the screen is switched to the 2D display mode; or, when the 3D application has the focus and the window is in the non-minimized state, when the user actively clicks the "3D" setting button of the application interface, the switch The screen is in 3D display mode; when the user actively clicks the "2D" setting button of the application interface, the screen is switched to the 2D display mode; when the 3D application exits, loses focus or is minimized, the screen is switched to the 2D display mode; or The 3D application starts the face tracking module, and has the focus and the window is in a non-minimized state. When the face tracking module recognizes the user's face and the user is in the best 3D display area, the screen is switched to 3D. Display mode; when the face tracking module does not recognize the user's face, or the user is not in the optimal 3D display area, the screen is switched to the 2D display mode; when the 3D application exits, loses focus or is minimized, the screen is switched It is a 2D display mode.

In the embodiment of the present invention, determining whether the display mode switching needs to be performed according to the use state is specifically: determining whether the display mode switching is required according to the 2D/3D switching mode of the 3D application and the current display mode.

In the embodiment of the present invention, the display mode switching instruction includes: switching the 2D display mode to the 3D display mode switching instruction or switching the 3D display mode to the 2D display mode switching instruction.

In the embodiment of the present invention, by detecting the use state of the stereoscopic display device, it is timely found whether the display mode switching needs to be performed, and when it is determined that the display mode switching needs to be performed, the display mode switching instruction is sent, and the stereoscopic display device is switched according to the display mode switching instruction. Discharge, after the discharge is completed, the voltage required to switch the display mode is generated. In addition, in the embodiment of the present invention, since the driving controller controls the square wave trigger circuit and the switching circuit to discharge the electrode, and then switches to the target voltage, The fast discharge and fast switching voltage are realized, which greatly shortens the switching delay and further improves the user experience. Tests have shown that after the discharge treatment, the above drive circuit switches from 2D to 3D display mode in only 3 seconds; 3D switch to 2D display mode takes only 3 to 4 seconds; shortens the delay time and enhances the display effect of the stereoscopic display device.

The flow of the display mode switching method in the embodiment of the present invention is further explained below with reference to FIG. 8.

As shown in Figure 8, the method is initiated when the user opens a naked eye 3D related application. Among them, the 3D related applications may be 3D game applications, 3D video playback applications, 3D image browsing applications, and the like.

After the method is started, the detection use state is entered (step S81). At this time, it is necessary to detect the 2D/3D switching mode of the running 3D application, and detect whether the current screen display mode is 2D display or 3D display. Here, the running 3D application is detected, that is, various applications running in the stereoscopic display device, such as a 3D video player, a 3D game program, and various 3DAPPs installed on the handheld device, and can also be played in various windows. . The 2D/3D switching mode may include: switching the screen to a 3D display mode when the 3D application has a focus and the window is in a non-minimized state; and switching the screen to a 2D display mode when the 3D application exits, loses focus, or is minimized. Or, if the 3D application has focus and the window is in a non-minimized state, when the user actively clicks the "3D" setting button of the application interface, the screen is switched to the 3D display mode; when the user actively clicks the "2D of the application interface" "When the button is set, the screen is switched to the 2D display mode; when the 3D application exits, loses focus or is minimized, Switching the screen to 2D display mode; or, when the 3D application starts the face tracking module, the focus is on the screen and the window is in a non-minimized state, when the face tracking module recognizes the user's face, and the user is in the best 3D When the area is displayed, the screen is switched to the 3D display mode; when the face tracking module does not recognize the user's face, or the user is not in the optimal 3D display area, the screen is switched to the 2D display mode; when the 3D application exits, the focus is lost or To minimize the state, switch the screen to 2D display mode.

Determining whether the display mode needs to be switched according to the 2D/3D switching mode defined by the 3D application and the current display mode of the stereoscopic display device (step S82), when the display mode of the stereoscopic display device needs to be switched, transmitting the switching display mode command according to the contract. (Step S83) to the drive circuit; otherwise, the current use state of the stereoscopic display device is continuously detected (step S81), and it is determined whether or not the display mode needs to be switched (step S82).

The above agreed agreement refers to a communication protocol between the processing unit and the drive circuit. The drive controller of the drive circuit receives the command and then controls the display mode of the stereoscopic display device according to a contract.

For example, the agreement protocol is: the instruction data length is 12 bytes; the first and second bytes are display modes: 0x0000 represents 2D display; 0xFFFF is 3D display; the 11th, 12th byte is data stop identification word: 0xAAAA ; mark all the data transmission of this instruction is complete; the middle 8 bytes, each of the two groups, respectively represent the left, upper, right and lower vertices of the 3D display area; the current stereoscopic display device is in 2D display mode, need to switch When in the 3D display mode, the processing unit sends an instruction to the above agreement Drive control circuit for the drive circuit.

Similarly, when the current stereoscopic display device is in the 3D display mode, when the switch to the 2D display mode is required, the processing unit sends a command to the drive control circuit of the drive circuit in accordance with the above-mentioned agreement.

When the first and second bytes of the instruction are 0x0000, the contents of the subsequent 8 bytes are ignored. After checking that the instruction data is complete, the 11th and 12th bytes are 0xAAAA, and the stereo display device is directly switched. 2D display mode.

At this point, the operation flow of the processing unit ends; next, the processing flow of the driving circuit is explained: after the driving controller receives the instruction sent by the processing unit, the translation instruction is agreed upon according to the agreement, and the electrodes are driven to discharge according to different instructions (step S84). After the discharge is completed, the drive electrode voltage is switched to the target voltage (step S85). Thereby, the switching display mode is completed (step S85). In the embodiment of the present invention, the different display mode switching instructions include: a switching instruction in which the 3D display mode is switched to the 2D display mode and a switching instruction in which the 2D display mode is switched to the 3D display mode.

When the display mode switching command is a switching command in which the 3D display mode is switched to the 2D display mode, each of the first electrodes of the optical splitting device of the stereoscopic display device is discharged, and the driving voltage on each of the first electrodes, for example, Vseg ₀ , Both Vseg ₁ and Vseg ₂ are switched to a common voltage or a zero potential voltage; after the discharge is completed, the common voltage or the zero potential voltage on each of the first electrodes is switched to the deflection voltage U ₀ , or when the display mode switching instruction is 2D display When the mode is switched to the switching command of the 3D display mode, each of the first electrodes of the optical splitting device of the stereoscopic display device is discharged, and the deflection voltage U ₀ on each of the first electrodes is switched to a common voltage or a zero potential voltage; Thereafter, the common voltage or the zero potential voltage on each of the first electrodes is switched to a driving voltage, for example, Vseg ₀ , Vseg _{1 ,} and Vseg ₂ .

In the embodiment of the present invention, discharging the first electrodes, including: when the second electrode voltage of the optical splitting device of the stereoscopic display device is zero potential voltage, switching each first electrode voltage to a zero potential voltage; or When the second electrode voltage of the light splitting device of the stereoscopic display device is a common voltage, each first electrode voltage is switched to a common voltage; or, when the second electrode voltage of the light splitting device of the stereoscopic display device is a common voltage, the second electrode The electrode voltage and each of the first electrodes are switched to a zero potential voltage.

When the 3D application exits, the stereoscopic display device is switched to the 2D display mode, and the display mode switching method stops running.

In the embodiment of the present invention, by detecting the use state of the stereoscopic display device, and determining whether the display mode switching needs to be performed according to the use state, the display mode switching instruction is sent when the display mode switching is required, and the switching command is generated according to the display mode switching instruction. The voltage required for the mode switching is displayed, and the display mode switching is completed, which effectively shortens the delay of the display mode switching and improves the user viewing experience.

In the embodiment of the present invention, by detecting the use state of the stereoscopic display device, it is timely found whether the display mode switching needs to be performed, and when it is determined that the display mode switching needs to be performed, the display mode switching instruction is sent, and the stereoscopic display device is switched according to the display mode switching instruction. Discharge, after the discharge is completed, the display mode switching is required. The voltage effectively reduces the delay in display mode switching. In addition, in the embodiment of the present invention, since the driving controller controls the square wave trigger circuit and the switching circuit to discharge the electrode, and then switches to the target voltage, the rapid discharge and the fast switching voltage are realized, so that the switching delay is greatly shortened and further improved. The user experience. Tests have shown that after the discharge treatment, the above drive circuit switches from 2D to 3D display mode in only 3 seconds; 3D switch to 2D display mode takes only 3 to 4 seconds; shortening the delay time and improving the display effect of the stereoscopic display device.

It should be noted that, in the display mode switching device in the embodiment of the present invention, the information interaction, the execution process, and the like between each module and the device are based on the same concept as the method embodiment of the present invention, and the specific content is also applicable to the display mode. Switch method. Each module in the embodiment of the present invention may be implemented as a separate hardware or software, and a separate hardware or software may be used as needed to implement a combination of functions of the respective units.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

61‧‧‧Processing unit

611‧‧‧Test module

612‧‧‧Determining the module

613‧‧‧Transmission module

63‧‧‧Drive circuit

631‧‧‧Drive Controller

632‧‧‧Drive trigger circuit

6321‧‧‧ square wave trigger subcircuit

6322‧‧‧Switch subcircuit

Claims (22)

A driving circuit for driving a light splitting device of a stereoscopic display device, comprising: a driving trigger circuit; and a driving controller for receiving a display mode switching instruction, and discharging the light separating device according to the display mode switching instruction Processing, controlling the driving trigger circuit to generate a voltage required for switching the display mode, wherein the display mode switching command is used to switch the display mode of the stereoscopic display device. The driving circuit of claim 1, wherein the beam splitting device comprises a first substrate and a second substrate disposed opposite to each other, the second substrate is located above the first substrate, the first substrate and the first substrate a liquid crystal layer and a spacer are disposed between the two substrates. The first substrate is provided with a plurality of first electrodes, and any two adjacent first electrodes are spaced apart by a distance, and the second substrate is provided with a second An electrode; wherein the driving controller is configured to parse the display mode switching instruction, and when the display mode switching instruction is a switching instruction that the 3D display mode is switched to the 2D display mode, the driving controller controls the driving trigger circuit to each of the first The electrode is discharged, and after the discharge is completed, a deflection voltage is applied to each of the first electrodes; or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the driving controller controls the driving trigger circuit pair Each of the first electrodes is discharged, and after the discharge is completed, a driving voltage is applied to each of the first electrodes. The driving circuit of claim 2, wherein the driving trigger circuit comprises a square wave triggering sub-circuit and a switching sub-circuit, wherein the square wave triggering sub-circuit is configured to generate a display mode switching according to the display mode switching instruction Voltage, the switching sub-circuit is configured to switch each of the first electrode voltages according to the display mode switching instruction Switch to the voltage required to switch the display mode. The driving circuit of claim 3, wherein the driving controller controls the driving trigger circuit to discharge each of the first electrodes, and when the second electrode voltage is zero potential voltage, the switching sub-circuit is The zero-potential voltage generated by the square wave triggering sub-circuit switches each of the first electrode voltages to a zero potential voltage; when the second electrode voltage is a common voltage, the switching sub-circuit generates a common voltage according to the square wave triggering sub-circuit Switching each of the first electrode voltages to a common voltage; or when the second electrode voltage is a common voltage, the switching subcircuits the second electrode voltage and each of the first electrodes according to a zero potential voltage generated by the square wave triggering subcircuit One electrode is switched to zero potential voltage. The driving circuit according to any one of claims 1 to 4, wherein the light separating device comprises a liquid crystal lens or a liquid crystal slit grating. A display switching device, configured to switch a display mode of a stereoscopic display device, comprising: a processing unit configured to detect a usage state of the stereoscopic display device, and determine, according to the usage state, whether display mode switching is required, if necessary Display mode switching, sending a display mode switching instruction; and a driving circuit for receiving the display mode switching instruction, and discharging the stereoscopic display device according to the display mode switching instruction, and generating a display mode switching after the discharging is completed Voltage. The display switching device of claim 6, wherein the driving circuit comprises: a driving trigger circuit; and a driving controller, configured to receive the display mode switching instruction, perform discharging processing on a light splitting device of the stereoscopic display device according to the display mode switching instruction, and control the driving trigger circuit to generate display mode switching The voltage of the display mode switching command is used to switch the display mode of the stereoscopic display device. The display switching device of claim 7, wherein the light splitting device comprises a first substrate and a second substrate disposed opposite to each other, the second substrate is located above the first substrate, the first substrate and the first substrate a liquid crystal layer and a spacer are disposed between the second substrate, wherein the first substrate is provided with a plurality of first electrodes, and any two adjacent first electrodes are spaced apart by a distance, and the second substrate is provided with a first a second electrode; wherein the driving controller is configured to parse the display mode switching instruction, and when the display mode switching instruction is a switching instruction that the 3D display mode is switched to the 2D display mode, the driving controller controls the driving trigger circuit for each of the Each of the electrodes is discharged, and after the discharge is completed, a deflection voltage is applied to each of the first electrodes; or when the display mode switching command is a switching instruction in which the 2D display mode is switched to the 3D display mode, the drive controller controls the drive trigger The circuit discharges each of the first electrodes, and after the discharge is completed, applies a driving voltage to each of the first electrodes. The display switching device of claim 8, wherein the driving trigger circuit comprises a square wave triggering sub-circuit and a switching sub-circuit, wherein the square wave triggering sub-circuit is configured to generate a switching display mode according to the display mode switching instruction The required voltage, the switching sub-circuit is configured to switch each of the first electrode voltages to a voltage required for display mode switching according to the display mode switching command. The display switching device of claim 9, wherein the driving controller controls the driving trigger circuit to discharge each of the first electrodes, when the first When the voltage of the two electrodes is zero potential voltage, the switching sub-circuit switches the first electrode voltage to a zero potential voltage according to the zero potential voltage generated by the square wave triggering sub-circuit; when the second electrode voltage is a common voltage, the The switching sub-circuit switches each of the first electrode voltages to a common voltage according to a common voltage generated by the square wave triggering sub-circuit; or when the second electrode voltage is a common voltage, the switching sub-circuit is generated according to the square wave triggering sub-circuit The zero potential voltage switches the second electrode voltage and each of the first electrodes to a zero potential voltage. The display switching device of claim 6, wherein the processing unit comprises: a detecting module for detecting the use state of the stereoscopic display device; and a determining module for determining according to the use state Whether the display mode switching needs to be performed; and a sending module, configured to send the display mode switching instruction when determining that the display mode switching needs to be performed according to the determining module. The display switching device of claim 11, wherein the usage state comprises an operating environment of the stereoscopic display device, a user operating behavior or/and a screen display mode, and the detecting module is configured to detect a running 3D application. 2D/3D switching mode and current screen display mode. The display switching device according to claim 12, in the 2D/3D switching mode of the 3D application, when the stereoscopic display device has a focus and the window is in a non-minimized state, switching the screen to a 3D display mode, when 3D When the application exits, loses focus, or minimizes the state of the window, the screen is switched to the 2D display mode; when the stereoscopic display device has focus and the window is in a non-minimized state When the user actively clicks a 3D setting button of the application interface, the screen is switched to the 3D display mode, and when the user actively clicks a 2D setting button of the application interface, the screen is switched to the 2D display mode; or when the stereoscopic display device is used When a face tracking module is activated and the focus is on and the window is in a non-minimized state, when the face tracking module recognizes the user's face and the user is in the optimal 3D display area, the screen is switched to the 3D display mode. When the face tracking module does not recognize the user's face, or the user is not in the optimal 3D display area, the screen is switched to the 2D display mode. The display switching device of claim 13, wherein the determining module is configured to determine whether a display mode switching is required according to a 2D/3D switching mode of the 3D application and a current display mode. The display switching device of claim 7, wherein the light splitting device comprises a liquid crystal lens or a liquid crystal slit grating. A stereoscopic display device comprising the display mode switching device according to any one of claims 6 to 15. A display mode switching method for switching a display mode of a stereoscopic display device includes: detecting a usage state of the stereoscopic display device, and determining whether display mode switching is required according to the use state, and if display mode switching is required, Sending a display mode switching command; receiving the display mode switching command, and discharging the stereoscopic display device according to the display mode switching command, and generating a voltage required for the display mode switching after the discharging is completed. The display mode switching method according to claim 17, wherein the stereoscopic display device is discharged according to the display mode switching instruction, and the voltage required for the display mode switching is generated after the discharging is completed, further comprising: analyzing the display mode switching. And when the display mode switching command is a switching command for switching the 3D display mode to the 2D display mode, the plurality of first electrodes of the optical splitting device of the stereoscopic display device are discharged, and after the discharging is completed, the first Applying a deflection voltage to an electrode; or when the display mode switching command is a switching instruction to switch the 2D display mode to the 3D display mode, discharging the first electrode of the optical splitting device of the stereoscopic display device, after the discharge is completed, A driving voltage is applied to each of the first electrodes. The display mode switching method of claim 18, wherein discharging each of the first electrodes comprises: when a second electrode voltage of the optical splitting device of the stereoscopic display device is zero potential voltage, The first electrode voltage is switched to a zero potential voltage; when the second electrode voltage of the light splitting device of the stereoscopic display device is a common voltage, each of the first electrode voltages is switched to a common voltage; or when the stereoscopic display device is When the second electrode voltage of the light splitting device is a common voltage, the second electrode voltage and each of the first electrodes are switched to a zero potential voltage. The display mode switching method of claim 17, wherein the usage state comprises an operating environment of the stereoscopic display device, a user operating behavior or a screen display mode, and detecting the usage state of the stereoscopic display device comprises: detecting The 2D/3D switching mode of the running 3D application and the display mode of the current screen. A display mode switching method as described in claim 20, wherein The 2D/3D switching mode of the 3D application includes: when the 3D application has the focus and the window is in the non-minimized state, the switching screen is in the 3D display mode; when the 3D application exits, loses the focus, or is minimized, the screen is switched to the 2D display mode. When the 3D application has focus and the window is in a non-minimized state, when the user actively clicks a 3D setting button of the application interface, the screen is switched to the 3D display mode; when the user actively clicks a 2D setting button of the application interface Switching the screen to the 2D display mode; or the 3D application launches a face tracking module, with the focus and the window being non-minimized, when the face tracking module recognizes the user's face and the user is at the best When the 3D display area is displayed, the switching screen is in the 3D display mode; when the face tracking module does not recognize the user's face, or the user is not in the optimal 3D display area, the switching screen is in the 2D display mode. The display mode switching method of claim 21, wherein determining whether the display mode switching is required according to the usage state comprises: determining whether the display mode is required according to the 2D/3D switching mode of the 3D application and the current display mode. Switch.