Shutter glasses type 3D projector, display control method, device and equipment

Abstract

The invention provides a shutter glasses type 3D projector, a display control method, a display control device and display control equipment, and the projector comprises shutter glasses which are provided with a first lens and a second lens, and the first lens and the second lens are used for transmitting polarized light in a first direction in an open state; the liquid crystal light valve device is arranged between the display module and the projection lens, a polarization element is arranged on the surface, far away from the display module, of the liquid crystal light valve device and used for enabling the polarized light in the first direction to pass through, and the display module is used for emitting polarized light in the second direction; the liquid crystal light valve device comprises a plurality of light-transmitting control units, the light-transmitting control units receive the voltage signals, and a first state in which the polarized light in the second direction is converted into the first direction is switched into a second state in which the polarized light in the second direction is directly transmitted. Through cooperation of the shutter glasses, the liquid crystal light valve device and the display module, double images caused by serial winding of contents of images of the two lenses are avoided, and the 3D projection effect is achieved under the condition that a DLP chip is not used.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D projectors, and particularly to a shutter glasses type 3D projector, a display control method, device and equipment. Background Art

[0002] Currently, most 3D projectors on the market adopt DLP-based displays. Such projectors use DLP Link technology, which is just a technology that adds a pulse synchronization signal between the corresponding images of the left and second eyes. At a refresh rate of 120 Hz, after each image corresponding to the first eye or the second eye is displayed every 1 / 120 second, the DLP chip will immediately emit a white peak pulse. The photosensitive element at the front end of the 3D glasses senses this pulse, and then the liquid crystal light valves of the left and right lenses alternate between opening and closing to complete the synchronization action. The left and second eyes of a person can only see the corresponding images with parallax respectively, thus forming a stereoscopic vision in the brain. However, DLP Link must rely on the DLP chip, and it is difficult to achieve the effect of 3D projection without the DLP chip. Summary of the Invention

[0003] The purpose of the present invention is to provide a shutter glasses type 3D projector, a display control method, device and equipment, which are used to solve the problem that the 3D projector made by using DLP Link technology in the prior art must rely on the DLP chip, and it is difficult to achieve the effect of 3D projection without the DLP chip.

[0004] To solve the above technical problems, an embodiment of the present invention provides a shutter glasses type 3D projector, which includes:

[0005] A shutter glasses provided with a first lens and a second lens, where the first lens and the second lens are used to transmit polarized light in a first direction in the open state;

[0006] A projection device, including a display module, a liquid crystal light valve device and a projection lens, where the liquid crystal light valve device is arranged between the display module and the projection lens;

[0007] Wherein, a polarization element is arranged on the surface of the liquid crystal light valve device far away from the display module, and the polarization element is used to allow polarized light in a first direction to pass through, and the display module is used to emit polarized light in a second direction;

[0008] The liquid crystal light valve device includes a plurality of light transmission control units, each of the light transmission control units corresponding to one or more pixel rows of the display module, and the light transmission control units receive voltage signals and switch from a first state to a second state; wherein in the first state, the light transmission control units can convert polarized light rays in a second direction emitted by the display module into a first direction; in the second state, the light transmission control units are used to directly transmit the polarized light rays in the second direction emitted by the display module.

[0009] Optionally, in the projector, the liquid crystal light valve device includes: a first substrate and a second substrate arranged opposite to each other;

[0010] A liquid crystal layer disposed between the first substrate and the second substrate;

[0011] Wherein, a first electrode layer is disposed on the surface of the first substrate close to the liquid crystal layer, and a second electrode layer is disposed on the surface of the second substrate close to the liquid crystal layer;

[0012] The first electrode layer includes a plurality of strip electrodes arranged in parallel, and the second electrode layer includes a planar electrode, and each strip electrode corresponds to one of the light transmission control units.

[0013] Optionally, in the projector, the width of each strip electrode is at least the width of one pixel row, and the strip electrode is parallel to the pixel row.

[0014] Optionally, in the projector, the first electrode layer and the second electrode layer are connected to a control circuit to form a plurality of control electrode groups.

[0015] Optionally, in the projector, the strip electrodes in the odd rows among the plurality of strip electrodes and the planar electrode form a first control electrode group, and the strip electrodes in the even rows among the plurality of strip electrodes and the planar electrode form a second control electrode group.

[0016] To achieve the above object, an embodiment of the present invention further provides a display control method, which is applied to the shutter glasses type 3D projector as described above, and the method includes:

[0017] Obtain first frame image data; wherein, the first frame image data includes a first lens image and a second lens image;

[0018] At time T1 within the scanning timing of the first frame of image data, a first control instruction is sent to the liquid crystal light valve device and a second control instruction is sent to the shutter glasses. The first control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the second lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state; the second control instruction is used to control the first lens to open and the second lens to close;

[0019] At time T2 within the scanning timing of the first frame of image data, a third control instruction is sent to the liquid crystal light valve device and a fourth control instruction is sent to the shutter glasses. The third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state; the fourth control instruction is used to control the second lens to open and the first lens to close;

[0020] Wherein, the time T2 is after the time T1.

[0021] Optionally, in the display control method, one or more pixel rows corresponding to each of the light transmission control units form a display row group;

[0022] The first lens image is displayed in odd display row groups among a plurality of the display row groups, and the third control instruction is used to send the voltage signal to the light transmission control units corresponding to the odd display row groups, and the light transmission control units receiving the voltage signal are in the second state;

[0023] The second lens image is displayed in even display row groups among a plurality of the display row groups, and the first control instruction is used to send the voltage signal to the light transmission control units corresponding to the even display row groups, and the light transmission control units receiving the voltage signal are in the second state.

[0024] To achieve the above object, an embodiment of the present invention further provides a display control method, which is applied to the shutter glasses type 3D projector as described above, and the method includes:

[0025] Obtain the target lens image data of the first frame of image; wherein, the target lens image data is one of the first lens image data and the second lens image data;

[0026] At time T3 when the scanning timing of the target lens image data starts, send a fifth control instruction to the liquid crystal light valve device. The fifth control instruction is used to sequentially send voltage signals to a plurality of the light-transmitting control units corresponding to the target lens image in the liquid crystal light valve device within the scanning timing of the target lens image data, and the light-transmitting control units receiving the voltage signals are in the second state;

[0027] At time T4 when the scanning timing of the target lens image data ends, send a sixth control instruction to the shutter glasses. The sixth control instruction is used to control the opening of the target lens corresponding to the target lens image, and the lenses of the shutter glasses other than the target lens are closed;

[0028] Wherein, the target lens is the first lens or the second lens.

[0029] Optionally, in the display control method, one or more pixel rows corresponding to each of the light-transmitting control units form a display row group;

[0030] Within the scanning timing of the target lens image data, the light-transmitting control units corresponding to the plurality of display row groups where the pixel rows for displaying the target lens image are located are in the second state.

[0031] To achieve the above object, an embodiment of the present invention further provides a display control device, which is applied to the shutter glasses type 3D projector as described above. The device includes:

[0032] A first acquisition module, configured to acquire first-frame image data; wherein, the first-frame image data includes a first lens image and a second lens image;

[0033] A first sending module, configured to send a first control instruction to the liquid crystal light valve device and a second control instruction to the shutter glasses at time T1 within the scanning timing of the first-frame image data. The first control instruction is used to send voltage signals to a plurality of the light-transmitting control units corresponding to the second lens image in the liquid crystal light valve device, and the light-transmitting control units receiving the voltage signals are in the second state; the second control instruction is used to control the opening of the first lens and the closing of the second lens;

[0034] A second sending module, configured to send a third control instruction to the liquid crystal light valve device and a fourth control instruction to the shutter glasses at a moment T2 within the scanning timing of the first frame of image data, where the third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state, and the fourth control instruction is used to control the second lens to open and the first lens to close;

[0035] Wherein, the moment T2 is after the moment T1.

[0036] To achieve the above object, an embodiment of the present invention further provides a display control device, which is applied to the shutter glasses type 3D projector as described above, and the device includes:

[0037] A second obtaining module, configured to obtain target lens image data of a first frame of image; wherein, the target lens image data is one of the first lens image data and the second lens image data;

[0038] A third sending module, configured to send a fifth control instruction to the liquid crystal light valve device at a moment T3 when the scanning timing of the target lens image data starts, where the fifth control instruction is used to sequentially send a voltage signal to a plurality of the light transmission control units corresponding to the target lens image in the liquid crystal light valve device within the scanning timing of the target lens image data, and the light transmission control units receiving the voltage signal are in the second state;

[0039] A fourth sending module, configured to send a sixth control instruction to the shutter glasses at a moment T4 when the scanning timing of the target lens image data ends, where the sixth control instruction is used to control the target lens corresponding to the target lens image data to open and the lenses other than the target lens in the shutter glasses to close;

[0040] Wherein, the target lens is the first lens or the second lens.

[0041] To achieve the above object, an embodiment of the present invention further provides a display device, including: a processor, a memory, and a program or instruction stored on the memory and executable on the processor; wherein, when the processor executes the program or instruction, the above-mentioned display control method is implemented.

[0042] To achieve the above object, an embodiment of the present invention further provides a readable storage medium, on which a program or instruction is stored, wherein, when the program or instruction is executed by a processor, the steps in the above-mentioned display control method are implemented.

[0043] To achieve the above object, an embodiment of the present invention further provides a computer program product, including computer instructions, which when executed by a processor implement the steps in the display control method as described above.

[0044] The beneficial effects of the above technical solution of the present invention are as follows:

[0045] In the above solution, the light transmission control unit of the liquid crystal light valve device of the shutter glasses type 3D projector can convert the polarized light in the second direction emitted by the display module into the first direction in the first state so as to pass through the polarization element, so that the light of the display module can pass through the lens of the shutter glasses with the shutter open; when the light transmission control unit receives a pressure signal, it switches to the second state, and can directly transmit the polarized light in the second direction emitted by the display module, and is covered by the polarization element, so that the light emitted by the display module cannot pass through the lens of the shutter glasses. Through the cooperation of the shutter glasses, the liquid crystal light valve device and the display module, it is possible to avoid the content of the images of the two lenses from forming crosstalk and generating ghosting, and to achieve the effect of 3D projection without using a DLP chip. Description of the Drawings

[0046] Figure 1 Schematic diagram of the shutter glasses type 3D projector according to an embodiment of the present invention;

[0047] Figure 2 Schematic diagram of the liquid crystal light valve device of the shutter glasses type 3D projector according to an embodiment of the present invention;

[0048] Figure 3 Schematic diagram one of the display control method according to an embodiment of the present invention;

[0049] Figure 4 Schematic diagram of the display state of the display control method according to an embodiment of the present invention;

[0050] Figure 5 Schematic diagram two of the display control method according to an embodiment of the present invention;

[0051] Figure 6 Schematic diagram one of the display control device according to an embodiment of the present invention;

[0052] Figure 7 Schematic diagram two of the display control device according to an embodiment of the present invention.

[0053] Symbol Description:

[0054] 100 - Projection screen; 200 - Projection lens; 301 - Light source; 302 - Display module; 303 - Liquid crystal light valve device; 3031 - First substrate; 3032 - Second substrate; 3033 - Second electrode layer; 3034 - First electrode layer; 3035 - Liquid crystal layer; 3036 - Polarizing element; 400 - Image generation unit; 500 - Shutter glasses; 501 - First lens; 502 - Second lens; 001 - First image; 002 - Second image; 003 - Third image. Detailed implementation mode

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] In view of the problem that the 3D projector manufactured by using the DLP Link technology in the prior art must rely on a DLP chip, and the price of the DLP chip is high, resulting in the high cost of the 3D projector, the present invention provides a shutter glasses type 3D projector, a display control method, device and equipment.

[0057] As Figure 1 shown, the embodiment of the present invention provides a shutter glasses type 3D projector, which includes:

[0058] Shutter glasses 500 provided with a first lens 501 and a second lens 502, the first lens 501 and the second lens 502 are used to transmit polarized light in a first direction in the open state;

[0059] A projection device, including a display module 302, a liquid crystal light valve device 303, and a projection lens 200, the liquid crystal light valve device 303 is disposed between the display module 302 and the projection lens 200;

[0060] Wherein, a polarizing element 3036 is disposed on the surface of the liquid crystal light valve device 303 away from the display module 302, the polarizing element 3036 is used to allow polarized light in a first direction to pass through, and the display module 302 is used to emit polarized light in a second direction;

[0061] The liquid crystal light valve device 303 includes a plurality of light transmission control units, each of the light transmission control units corresponding to one or more pixel rows of the display module 302. The light transmission control unit receives a voltage signal and switches from a first state to a second state. In the first state, the light transmission control unit can convert polarized light rays in a second direction emitted by the display module 302 into a first direction. In the second state, the light transmission control unit is used to directly transmit polarized light rays in the second direction emitted by the display module 302.

[0062] In this embodiment, in the first state, the light transmission control unit of the liquid crystal light valve device 303 of the shutter glasses type 3D projector can convert polarized light rays in a second direction emitted by the display module 302 into a first direction and then transmit through the polarization element 3036, so that the light rays of the display module 302 can pass through the lens of the shutter glasses 500 in the on state. When the light transmission control unit receives a pressure signal, it switches to the second state, can directly transmit polarized light rays in a second direction emitted by the display module 302, and is covered by the polarization element 3036, so that the light rays emitted by the display module 302 cannot pass through the lens of the shutter glasses 500. Through the cooperation of the shutter glasses 500, the liquid crystal light valve device 303 and the display module 302, the same technical effect as the DLP Link technology can be achieved, and it is no longer necessary to rely on a DLP chip, reducing the manufacturing cost.

[0063] Optionally, in the projector, the liquid crystal light valve device 303 includes: a first substrate 3031 and a second substrate 3032 disposed opposite to each other;

[0064] a liquid crystal layer 3035 disposed between the first substrate 3031 and the second substrate 3032;

[0065] Wherein, a first electrode layer 3034 is disposed on the surface of the first substrate 3031 close to the liquid crystal layer 3035, and a second electrode layer 3033 is disposed on the surface of the second substrate 3032 close to the liquid crystal layer 3035;

[0066] The first electrode layer 3034 includes a plurality of strip electrodes arranged in parallel, and the second electrode layer 3033 includes a planar electrode, and each strip electrode corresponds to one light transmission control unit.

[0067] In this embodiment, as Figure 2The liquid crystal light valve device 303 shown includes the first substrate 3031, the second substrate 3032, the liquid crystal layer 3035, the first electrode layer 3034, and the second electrode layer 3033. Among them, the first electrode layer 3034 includes a plurality of strip electrodes arranged in a staggered manner on the first substrate 3031 corresponding to the light transmission control units, and the second electrode layer 3033 includes the planar electrode.

[0068] Optionally, in the projector, the width of each strip electrode is at least the width of one pixel row, and the strip electrode is parallel to the pixel row.

[0069] In this embodiment, the width of the strip electrode is greater than or equal to the width of the pixel row, and the extending direction of the strip electrode is parallel to the extending direction of the pixel row.

[0070] Optionally, in the projector, the first electrode layer 3034 and the second electrode layer 3033 are connected to a control circuit to form a plurality of control electrode groups.

[0071] In this embodiment, the first electrode layer 3034 and the second electrode layer 3033 are connected to a control circuit to form a plurality of control electrode groups corresponding to the light transmission control units, so as to control the switching state of the light transmission control units through the control electrode groups. The liquid crystal molecules in the liquid crystal layer 3035 change the optical rotation state, and further control the light of the display module to be transmitted through the area of the light transmission control units in the first state.

[0072] Optionally, in the projector, the strip electrodes in the odd rows among the plurality of strip electrodes and the planar electrode form a first control electrode group, and the strip electrodes in the even rows among the plurality of strip electrodes and the planar electrode form a second control electrode group.

[0073] In this embodiment, the strip electrodes in the odd rows and the even rows of the strip electrodes are respectively in a control electrode group, so as to achieve the effect of separate control, and further separately control the light transmission control units in the odd rows and the even rows.

[0074] It should be noted that the shutter glasses type 3D projector according to the embodiment of the present invention further includes the light source 301 and the screen 100. The light source 301 is arranged on a side of the display module 302 away from the liquid crystal light valve device 303, and the screen 100 is arranged on a side of the projection lens 200 away from the liquid crystal light valve device 303. The light source 301 provides light for the display module 302, and the light transmitted through the liquid crystal light valve device 303 by the display module 302 is refracted by the screen 100 and then enters the first lens 501 or the second lens 502 of the shutter glasses 500.

[0075] As Figure 3 shown, to achieve the above object, the embodiment of the present invention further provides a display control method, which is applied to the shutter glasses type 3D projector as described above. The method includes:

[0076] S10, obtaining first frame image data; wherein, the first frame image data includes a first lens image and a second lens image;

[0077] S20, at a T1 moment within the scanning timing of the first frame image data, sending a first control instruction to the liquid crystal light valve device 303 and sending a second control instruction to the shutter glasses 500. The first control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the second lens image in the liquid crystal light valve device 303, and the light transmission control units receiving the voltage signal are in the second state; the second control instruction is used to control the first lens 501 to open and the second lens 502 to close;

[0078] S30, at a T2 moment within the scanning timing of the first frame image data, sending a third control instruction to the liquid crystal light valve device 303 and sending a fourth control instruction to the shutter glasses 500. The third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device 303, and the light transmission control units receiving the voltage signal are in the second state. The fourth control instruction is used to control the second lens 502 to open and the first lens 501 to close; wherein, the T2 moment is after the T1 moment.

[0079] In this embodiment, as Figure 1 and Figure 4As shown, within the scanning timing of the first frame of image data, the image generation unit 400 transmits the encoded image (such as the third image 003) to the display module 302 for display. Among them, a part of the content of the first lens image (such as the first image 001) and the second lens image (such as the second image 002) are respectively extracted and filled into the first frame of image data to form the encoded image (such as the third image 003); at a certain moment during the scanning of the first frame of image data, for example, at the T1 moment, usually the moment when scanning starts, the image generation unit 400 simultaneously sends a third control instruction to the liquid crystal light valve device 303 and a fourth control instruction to the shutter glasses 500, so as to simultaneously control a plurality of light transmission control units corresponding to the first lens image to be in the second state under the action of the saturation voltage, and control the opening of the first lens 501 and the closing of the second lens 502; at this time, the user of the shutter glasses 500 can see the display screen of the display area of the first lens image through the first lens 501 and cannot see the second lens image, because after the light transmission control units corresponding to the second lens image are applied with the saturation voltage, the liquid crystal molecules in the corresponding liquid crystal layer 3035 change the glare state, and the light corresponding to the second lens image emitted by the display module 302 is directly transmitted as the second-direction polarized light and blocked by the polarization element 3036.

[0080] At a certain moment during the scanning of the first frame of image data, for example, at the T2 moment, usually the moment in the middle of scanning, a third control instruction is sent to the liquid crystal light valve device 303 and a fourth control instruction is sent to the shutter glasses 500, so as to control the opening of the second lens 502 of the shutter glasses 500 and the closing of the first lens 501, and at the same time control the light transmission control units corresponding to the first lens image to be in the second state under the action of the saturation voltage, so as to block the first lens image. The user of the shutter glasses 500 can see the second lens image through the second lens 502 and cannot see the first lens image.

[0081] During the scanning of the next frame of image data, usually at that moment of scanning, the opening and closing states of the lenses of the shutter glasses 500 are switched again, and the light transmission control units corresponding to the image display areas of the closed lenses are controlled to be in the second state under the action of the saturation voltage, and so on for subsequent display control methods.

[0082] During the scanning of each frame of image data, the opening and closing states of the lenses of the shutter glasses 500 are switched twice, and the states of the corresponding light transmission control units in the liquid crystal light valve device are switched. When the response speeds of the liquid crystal light valve device 303 and the shutter glasses 500 are less than 1 / 120 second, the user's eyes can see a normal non-flickering 3D image. Then, the display module 302 does not have to be a high-refresh-rate screen of 120 Hz, and a 3D image can be achieved when it is higher than 60 Hz, which reduces the requirements for the display module 302 and thus reduces the cost.

[0083] Optionally, in the display control method, one or more pixel rows corresponding to each light transmission control unit form a display row group;

[0084] The first lens image is displayed in odd display row groups among multiple display row groups. The third control instruction is used to send the voltage signal to the light transmission control units corresponding to the odd display row groups, and the light transmission control units receiving the voltage signal are in the second state;

[0085] The second lens image is displayed in even display row groups among multiple display row groups. The first control instruction is used to send the voltage signal to the light transmission control units corresponding to the even display row groups, and the light transmission control units receiving the voltage signal are in the second state.

[0086] In this embodiment, as Figure 4 shown, one or more pixel rows in the display module 302 form a display row group. The first lens image is displayed in odd display row groups among multiple display row groups, and the second lens image is displayed in even display row groups among multiple display row groups. Or, the second lens image is displayed in odd display row groups among multiple display row groups, and the first lens image is displayed in even display row groups among multiple display row groups. The content of the display row groups with the same row width of the first lens image (such as the first image 001) and the second lens image (such as the second image 002) is respectively and evenly extracted and filled into an image to form an encoded image (such as the third image 003). Each display row group corresponds to a light transmission control unit. Therefore, the width of the strip electrode is the same as the width of the display row group. In this display control method, the odd rows and even rows in the strip electrode respectively form a first control electrode group and a second control electrode group with the planar electrode.

[0087] As Figure 5 shown, to achieve the above object, an embodiment of the present invention further provides a display control method, which is applied to the shutter glasses type 3D projector as described above. The method includes:

[0088] Obtain the target lens image data of the first frame image; wherein, the target lens image data is one of the first lens image data and the second lens image data;

[0089] At the T3 moment when the scanning timing of the target lens image data starts, send a fifth control instruction to the liquid crystal light valve device 303, and the fifth control instruction is used to sequentially send voltage signals to a plurality of the light transmission control units corresponding to the target lens image in the liquid crystal light valve device 303 within the scanning timing of the target lens image data, and the light transmission control units receiving the voltage signals are in the second state;

[0090] At the T4 moment when the scanning timing of the target lens image data ends, send a sixth control instruction to the shutter glasses 500, and the sixth control instruction is used to control the opening of the target lens corresponding to the target lens image data, and the lenses of the shutter glasses 500 other than the target lens are closed; wherein, the target lens is the first lens 501 or the second lens 502.

[0091] In this embodiment, in the scanning timing of the target lens image data of the first frame image, the image generation unit 400 sends a fifth control instruction to the liquid crystal light valve device 303 at the starting T3 moment, so as to control a plurality of the light transmission control units corresponding to the target lens image to be in the second state under the action of the saturation voltage, thereby blocking the target lens image. At the ending T4 moment, a sixth control instruction is sent to the shutter glasses 500, so that the target lens corresponding to the target lens image data is turned on and the other lens is turned off. Assume that the target lens image at this time is the first lens image. At the T3 moment, the first line content corresponding to the start of the first lens image starts to appear in the display module 302. At this time, the second lens is in the on state and the first lens is in the off state. The light transmission control units corresponding to the pixel rows where the first lens image appears are sequentially applied with the saturation voltage under the action of the fifth control instruction, so as to present the second state. Therefore, the first lens image is covered, and the user of the shutter glasses 500 can only see the picture other than the target lens image through the second lens. At the T4 moment, the lens opening and closing state of the shutter glasses 500 is switched, and the user of the shutter glasses 500 sees the picture other than the target lens image through the first lens. After the T4 moment, the scanning of the other lens image data of the first frame image starts. At this time, it is the T5 moment and also the T3 moment within this cycle. The target lens image becomes the second lens image. The second lens image is blocked by the liquid crystal light valve device. The user of the shutter glasses 500 sees the target lens image in the previous cycle, that is, the first lens image, through the first lens, and the second lens image is blocked. And so on, each frame image displays two lens images through two cycles respectively.

[0092] Optionally, in the display control method, one or more pixel rows corresponding to each of the light transmission control units form a display row group;

[0093] Within the scanning timing of the target lens image data, the light transmission control units corresponding to the multiple display row groups where the pixel rows for displaying the target lens image are located are in the second state.

[0094] In this embodiment, within the scanning timing of the target lens image data, the target lens image is displayed by progressive scanning. Assume that after scanning the image of the first display line group, the next display line group needs to be scanned simultaneously, that is, the image of the first pixel row in the second display line group, and the state of the light transmission control unit corresponding to the second display line group is switched to the second state. Even if there may be other images displayed on the pixel rows in the second display line group except for the first pixel row, they will also be covered by the liquid crystal light valve device 303 together. At this time, it is necessary to ensure that the display area of the target lens image is completely covered by the liquid crystal light valve device 303, so as to reduce crosstalk and avoid ghosting, which affects the 3D viewing effect.

[0095] As Figure 6 shown, to achieve the above object, an embodiment of the present invention further provides a display control device, which is applied to the shutter glasses type 3D projector as described above. The device includes:

[0096] A first acquisition module 601, configured to acquire first frame image data; wherein, the first frame image data includes a first lens image and a second lens image;

[0097] A first sending module 602, configured to send a first control instruction to the liquid crystal light valve device 303 and a second control instruction to the shutter glasses 500 at a T1 moment within the scanning timing of the first frame image data. The first control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the second lens image in the liquid crystal light valve device 303, and the light transmission control units receiving the voltage signal are in the second state; the second control instruction is used to control the first lens 501 to open and the second lens 502 to close;

[0098] A second sending module 603, configured to send a third control instruction to the liquid crystal light valve device 303 and a fourth control instruction to the shutter glasses 500 at a T2 moment within the scanning timing of the first frame image data. The third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device 303, and the light transmission control units receiving the voltage signal are in the second state. The fourth control instruction is used to control the second lens 502 to open and the first lens 501 to close;

[0099] Wherein, the T2 moment is after the T1 moment.

[0100] As Figure 7 shown, to achieve the above object, an embodiment of the present invention further provides a display control device, which is applied to the shutter glasses type 3D projector as described above. The device includes:

[0101] A second acquisition module 701, configured to acquire target lens image data of a first frame of image; wherein, the target lens image data is one of first lens image data and second lens image data;

[0102] A third sending module 702, configured to send a fifth control instruction to the liquid crystal light valve device 303 at a moment T3 when the scanning timing of the target lens image data starts, where the fifth control instruction is used to sequentially send voltage signals to a plurality of the light transmission control units corresponding to the target lens image in the liquid crystal light valve device 303 during the scanning timing of the target lens image data, and the light transmission control units receiving the voltage signals are in the second state;

[0103] A fourth sending module 703, configured to send a sixth control instruction to the shutter glasses 500 at a moment T4 when the scanning timing of the target lens image data ends, where the sixth control instruction is used to control the target lens corresponding to the target lens image data to be turned on, and the lenses of the shutter glasses 500 other than the target lens are turned off;

[0104] Wherein, the target lens is the first lens 501 or the second lens 502.

[0105] Optionally, for the display control device, wherein one or more pixel rows corresponding to each of the light transmission control units form a display row group;

[0106] The first lens image is displayed in odd display row groups among a plurality of the display row groups, and the third control instruction is used to send the voltage signal to the light transmission control units corresponding to the odd display row groups, and the light transmission control units receiving the voltage signals are in the second state;

[0107] The second lens image is displayed in even display row groups among a plurality of the display row groups, and the first control instruction is used to send the voltage signal to the light transmission control units corresponding to the even display row groups, and the light transmission control units receiving the voltage signals are in the second state.

[0108] Optionally, for the display control device, wherein one or more pixel rows corresponding to each of the light transmission control units form a display row group;

[0109] During the scanning timing of the target lens image data, the light transmission control units corresponding to a plurality of the display row groups where the pixel rows displaying the target lens image are located are in the second state.

[0110] It should be noted here that the above device provided by the embodiments of the present invention can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described herein again.

[0111] To achieve the above object, an embodiment of the present invention further provides a display device, including: a processor, a memory, and a program or instruction stored on the memory and executable on the processor; wherein, when the processor executes the program or instruction, the display control method described above is implemented.

[0112] To achieve the above object, an embodiment of the present invention further provides a readable storage medium, on which a program or instruction is stored, wherein when the program or instruction is executed by a processor, the steps in the display control method described above are implemented.

[0113] To achieve the above object, an embodiment of the present invention further provides a computer program product, including computer instructions, where the computer instructions, when executed by a processor, implement the above Figure 3 or Figure 5 each process of the method embodiment shown, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0114] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A shutter glasses type 3D projector, characterized in that, Comprising: A shutter glasses provided with a first lens and a second lens, the first lens and the second lens being configured to transmit polarized light in a first direction in an open state; A projection device, comprising a display module, a liquid crystal light valve device, and a projection lens, the liquid crystal light valve device being disposed between the display module and the projection lens; Wherein, a polarization element is disposed on a surface of the liquid crystal light valve device away from the display module, the polarization element being configured to allow polarized light in a first direction to pass through, and the display module being configured to emit polarized light in a second direction; The liquid crystal light valve device includes a plurality of light transmission control units, each of the light transmission control units corresponding to one or more pixel rows of the display module, the light transmission control units receiving voltage signals and switching from a first state to a second state; wherein in the first state, the light transmission control units are capable of converting the polarized light in a second direction emitted by the display module into a first direction; in the second state, the light transmission control units are configured to directly transmit the polarized light in a second direction emitted by the display module.

2. The projector according to claim 1, wherein The liquid crystal light valve device includes: a first substrate and a second substrate disposed opposite to each other; A liquid crystal layer disposed between the first substrate and the second substrate; Wherein, a first electrode layer is disposed on a surface of the first substrate close to the liquid crystal layer, and a second electrode layer is disposed on a surface of the second substrate close to the liquid crystal layer; The first electrode layer includes a plurality of strip electrodes disposed in parallel, the second electrode layer includes a planar electrode, and each of the strip electrodes corresponds to one of the light transmission control units.

3. The projector according to claim 2, characterized in that, The width of each of the strip electrodes is at least the width of one pixel row, and the strip electrodes are parallel to the pixel rows.

4. The projector according to claim 2, wherein The first electrode layer and the second electrode layer are connected to a control circuit to form a plurality of control electrode groups.

5. The projector according to claim 4, wherein The strip electrodes in odd rows among the plurality of strip electrodes and the planar electrode form a first control electrode group, and the strip electrodes in even rows among the plurality of strip electrodes and the planar electrode form a second control electrode group.

6. A display control method, characterized in that, Applied to the shutter glasses type 3D projector according to any one of claims 1 to 5, the method includes: Obtaining first frame image data; wherein, the first frame image data includes a first lens image and a second lens image; At a T1 moment within the scanning timing of the first frame image data, sending a first control instruction to the liquid crystal light valve device and sending a second control instruction to the shutter glasses, the first control instruction being configured to send voltage signals to a plurality of the light transmission control units corresponding to the second lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signals being in the second state; the second control instruction being configured to control the first lens to open and the second lens to close; At time T2 within the scanning timing of the first frame of image data, a third control instruction is sent to the liquid crystal light valve device and a fourth control instruction is sent to the shutter glasses. The third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state. The fourth control instruction is used to control the second lens to open and the first lens to close; Among them, the time T2 is after the time T1.

7. The display control method according to claim 6, wherein One or more pixel rows corresponding to each of the light transmission control units form a display row group; The first lens image is displayed in the odd display row groups among the plurality of display row groups, and the third control instruction is used to send the voltage signal to the light transmission control units corresponding to the odd display row groups, and the light transmission control units receiving the voltage signal are in the second state; The second lens image is displayed in the even display row groups among the plurality of display row groups, and the first control instruction is used to send the voltage signal to the light transmission control units corresponding to the even display row groups, and the light transmission control units receiving the voltage signal are in the second state.

8. A display control method, characterized in that Applied to the shutter glasses type 3D projector according to any one of claims 1 to 5, the method includes: Obtain the target lens image data of the first frame of image; wherein, the target lens image data is one of the first lens image data and the second lens image data; At time T3 when the scanning timing of the target lens image data starts, a fifth control instruction is sent to the liquid crystal light valve device. The fifth control instruction is used to sequentially send a voltage signal to a plurality of the light transmission control units corresponding to the target lens image in the liquid crystal light valve device within the scanning timing of the target lens image data, and the light transmission control units receiving the voltage signal are in the second state; At time T4 when the scanning timing of the target lens image data ends, a sixth control instruction is sent to the shutter glasses. The sixth control instruction is used to control the target lens corresponding to the target lens image data to open, and the lenses of the shutter glasses other than the target lens are closed; Among them, the target lens is the first lens or the second lens.

9. The display control method according to claim 8, wherein One or more pixel rows corresponding to each of the light transmission control units form a display row group; Within the scanning timing of the target lens image data, the light transmission control units corresponding to the plurality of display row groups where the pixel rows displaying the target lens image are in the second state.

10. A display control device, characterized in that, Applied to the shutter glasses type 3D projector according to any one of claims 1 to 5, the device includes: A first acquisition module, configured to acquire the first frame of image data; wherein, the first frame of image data includes the first lens image and the second lens image; The first sending module is configured to send a first control instruction to the liquid crystal light valve device and a second control instruction to the shutter glasses at a moment T1 within the scanning timing of the first frame of image data. The first control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the second lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state; the second control instruction is used to control the first lens to open and the second lens to close. The second sending module is configured to send a third control instruction to the liquid crystal light valve device and a fourth control instruction to the shutter glasses at a moment T2 within the scanning timing of the first frame of image data. The third control instruction is used to send a voltage signal to a plurality of the light transmission control units corresponding to the first lens image in the liquid crystal light valve device, and the light transmission control units receiving the voltage signal are in the second state; the fourth control instruction is used to control the second lens to open and the first lens to close. Wherein, the moment T2 is after the moment T1.

11. A display control device, characterized in that, Applied to the shutter glasses type 3D projector according to any one of claims 1 to 5, the device includes: The second acquisition module is configured to acquire the target lens image data of the first frame of image; wherein, the target lens image data is one of the first lens image data and the second lens image data. The third sending module is configured to send a fifth control instruction to the liquid crystal light valve device at a moment T3 when the scanning timing of the target lens image data starts. The fifth control instruction is used to sequentially send a voltage signal to a plurality of the light transmission control units corresponding to the target lens image in the liquid crystal light valve device within the scanning timing of the target lens image data, and the light transmission control units receiving the voltage signal are in the second state. The fourth sending module is configured to send a sixth control instruction to the shutter glasses at a moment T4 when the scanning timing of the target lens image data ends. The sixth control instruction is used to control the target lens corresponding to the target lens image data to open, and the lenses in the shutter glasses except the target lens to close. Wherein, the target lens is the first lens or the second lens.

12. A display device, comprising: A processor, a memory, and a program or instruction stored on the memory and executable on the processor; characterized in that when the processor executes the program or instruction, it implements the display control method according to any one of claims 6 - 7, or implements the display control method according to any one of claims 8 - 9.

13. A readable storage medium, on which a program or instructions are stored, characterized in that, When the program or instruction is executed by the processor, it implements the steps in the display control method according to any one of claims 6 - 7, or implements the steps in the display control method according to any one of claims 8 - 9.

14. A computer program product, characterized in that, Including computer instructions, when the computer instructions are executed by the processor, it implements the steps in the display control method according to any one of claims 6 - 7, or implements the steps in the display control method according to any one of claims 8 - 9.

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