Projector and control circuit and synchronous display method thereof

Abstract

According to the projector and the control circuit and the synchronous display method thereof, the main control module is connected with the connecting module, the connecting module is connected with the projection light machine module and the touch screen module, and the touch control signal generated on the touch screen is obtained through the touch screen control unit; the control signal is sent to the touch screen signal unit in the main control module through the control signal connecting unit, the control unit controls the change of the display content according to a signal acquired by the touch screen signal unit, and controls the light machine driving unit and the touch screen driving unit to output the changed display content through an electric signal; the touch screen display unit and the horizontal screen display unit display the transmitted data, the touch screen synchronously controls the projection content of the touch screen and the projection light machine, the display content of the touch screen and the display content of the projection light machine are kept the same all the time, the synchronous display effect is achieved, the touch control on the touch screen changes the displayed content, and the display effect is improved. The projector can be separated from the control of the remote controller, and a user can use the projector more conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of projectors, and in particular to a projector and a control circuit and a synchronous display method thereof. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals.

[0003] Traditional projectors can only be operated using a remote control or buttons. If you want to control the operation of the projector, you need to use the remote control, but the remote control is easy to lose or difficult to find at home, making the projector unusable. Summary of the invention

[0004] The technical problem to be solved by the present application is that a traditional projector can only be operated using a remote control or buttons. If you want to control the operation of the projector, you need to operate it through the remote control, but the remote control is easy to lose or difficult to find at home, resulting in the projector being unusable.

[0005] In order to solve the above problems, in order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a projector and a control circuit thereof, and a synchronous display method.

[0006] In a first aspect, the present invention discloses a projector control circuit, comprising: A projection optical machine module, including a horizontal screen display unit; A touch screen module, comprising a touch screen control unit and a touch screen display unit, wherein the touch screen control unit is connected to the touch screen display unit, and the touch screen display unit and the horizontal screen display unit output the same display content; A connection module, comprising a control signal connection unit and a video signal connection unit, wherein the video signal connection unit is connected to the touch screen display unit and the horizontal screen display unit respectively, and the control signal connection unit is connected to the touch screen control unit, and the control signal connection unit is used to receive a touch signal from the touch screen control unit; The main control module includes a control unit, an optical-mechanical driving unit, a touch screen signal unit and a touch screen driving unit, wherein the video signal connection unit is respectively connected to the touch screen driving unit and the optical-mechanical driving unit, the control signal connection unit is connected to the touch screen signal unit, and the control unit is respectively connected to the optical-mechanical driving unit, the touch screen signal unit and the touch screen driving unit.

[0007] Preferably, the projection optical machine module includes a projection optical machine backlight unit, and the touch screen module includes a touch screen backlight unit; The main control module includes an optical machine backlight switch unit and a touch screen backlight switch unit. The optical machine backlight switch unit is connected to the projection optical machine backlight unit, and the touch screen backlight switch unit is connected to the touch screen backlight unit.

[0008] Preferably, it comprises a power amplifier module, and the power amplifier module is connected to the main control module.

[0009] Preferably, a switching module is included, wherein the switching module adopts a six-axis gyroscope; The main control module includes a switching unit, and the switching unit is connected to the switching module.

[0010] Preferably, the video signal connection unit includes an optical-mechanical signal transmission unit and a touch screen signal transmission unit, the optical-mechanical signal transmission unit is connected to the horizontal screen display unit, and the touch screen signal transmission unit is connected to the touch screen display unit; The optical-mechanical signal transmission unit includes a first connection interface, which uses an LVDS interface or a MIPI interface. The touch screen signal transmission unit includes a second connection interface, which uses a MIPI interface.

[0011] Preferably, the projection optical machine module comprises a projection backlight brightness adjustment control unit, and the projection backlight brightness adjustment control unit is connected to the main control module.

[0012] Preferably, it comprises a power supply module, the power supply module is electrically connected to the main control module, and the power supply module is connected to an external power source.

[0013] Preferably, it comprises a wireless transmission module, and the wireless transmission module is connected to the main control module.

[0014] In a second aspect, the present invention discloses a projector, which includes the above-mentioned projector control circuit, a housing, a touch screen, and a projection optical machine; The projector control circuit is connected to the touch screen and the projection light engine respectively, and the light emitting positions of the touch screen and the projection light engine are arranged on two different surfaces of the housing.

[0015] In a third aspect, the present invention discloses a projector synchronous display method, which is applied to the above-mentioned projector and comprises the following steps: The touch screen and the projection light machine simultaneously display the first display content; The touch screen obtains the touch signal and transmits an electrical signal corresponding to the touch signal to the main control module; The main control module responds to the electrical signal and adjusts the first display content according to the electrical signal to obtain the second display content; The second display content is synchronously sent to the touch screen and the projector, and the touch screen and the projector display the second display content synchronously.

[0016] The above technical solution provided by this application has the following advantages compared with the prior art: The present application provides a projector and its control circuit and synchronous display method, wherein the projector control circuit is connected to a connection module through a main control module, the connection module is respectively connected to a projection optical machine module and a touch screen module, a touch signal generated on the touch screen is obtained through a touch screen control unit, and is sent to a touch screen signal unit in the main control module through a control signal connection unit, the control unit controls the change of display content according to the signal obtained by the touch screen signal unit, controls the optical machine drive unit and the touch screen drive unit to output the changed display content through an electrical signal, so that the touch screen display unit and the horizontal screen display unit display the transmitted image and video data, and realizes the touch screen to synchronously control the projection content of the touch screen and the projection optical machine, the display content of the touch screen and the projection optical machine always remains the same, thereby achieving the effect of synchronous display, and the touch control on the touch screen changes the displayed content, so that the projector can be separated from the control of the remote control, and the user is more convenient to use.

[0017] For the projector, a projection light engine and a touch screen are set. The light-emitting positions of the projection light engine and the touch screen are set on different surfaces of the outer shell. The touch screen can be controlled by touching with fingers to change the display content of the touch screen. The content projected by the touch screen and the projection light engine is the same, so that the display content of the touch screen and the projection light engine can be changed by controlling the touch screen, thereby allowing the projector to be separated from the remote control and being more convenient to use.

[0018] The touch screen can be used as a tablet computer, electronic clock, and electronic photo frame. In addition, the projector can realize the function of a learning machine. The learning content is projected through a projection light machine, which prevents children from using a small screen for a long time and protects their eyesight.

[0019] For the projector synchronous display method, the touch screen and the projection optical machine display the same content at the same time. The user touches the touch screen with his finger to control the change of the display content, and the projector changes the display content accordingly. The touch screen and the projection optical machine display the changed display content at the same time, that is, the touch screen and the projection optical machine respond to and display the touch operation at the same time. Touch changes the displayed content, which is more convenient than traditional remote control control. In addition, compared with mechanical buttons, touch control can generate virtual buttons at will, and can display the control content in response to the virtual buttons, making operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A module diagram of a projector control circuit provided in this application; Figure 2 A module diagram of a main control module of a projector control circuit provided in the present application; Figure 3 A circuit diagram of a main control module of a projector control circuit provided in the present application; Figure 4 A circuit diagram of an optical-mechanical backlight switch unit of a projector control circuit provided in the present application; Figure 5 A circuit diagram of a projection backlight brightness adjustment control unit of a projector control circuit provided in the present application; Figure 6 A circuit diagram of a projection optical power supply unit of a projector control circuit provided in the present application; Figure 7 A circuit diagram of a touch screen backlight unit of a projector control circuit provided in this application; Figure 8 A circuit diagram of a touch screen control unit of a projector control circuit provided in the present application; Fig. 9 A circuit diagram of a touch screen power supply unit of a projector control circuit provided in the present application; Fig.10 A circuit diagram of an optical-mechanical signal transmission unit of a projector control circuit provided in the present application; Fig.11 A circuit diagram of a touch screen signal transmission unit of a projector control circuit provided by the present application; Fig.12 A circuit diagram of a switching module of a projector control circuit provided in the present application; Fig.13 A circuit diagram of a power amplifier module of a projector control circuit provided in the present application; Fig.14 A module diagram of a power supply module of a projector control circuit provided in the present application; Fig.15 A circuit diagram of a power switch of a projector control circuit provided in the present application; Fig.16A circuit diagram of a standby power supply unit of a projector control circuit provided in the present application; Fig.17 A circuit diagram of a 3.3V power supply unit of a projector control circuit provided in the present application; Fig.18 A circuit diagram of a 1.8V power supply unit of a projector control circuit provided in the present application; Fig.19 A circuit diagram of a wireless transmission module of a projector control circuit provided by the present application; Fig. 20 A module diagram of a projector provided in this application; Fig.21 A flowchart of the steps of a projector synchronous display method provided in this application.

[0023] Description of reference numerals: 100. Projector; 1. Projector control circuit; 11. Main control module; 111. Control unit; 112. Optical-mechanical drive unit; 113. Touch screen signal unit; 114. Touch screen drive unit; 115. Optical-mechanical backlight switch unit; 116. Touch screen backlight switch unit; 12. Projection optical machine module; 121. Horizontal screen display unit; 122. Projection optical machine backlight unit; 123. Projection backlight brightness adjustment control unit; 124. Projection optical machine power supply unit; 13. Touch screen module; 131. Touch screen backlight unit; 132. Touch screen display unit; 133. Touch screen control unit; 134. Touch screen power supply unit; 14. connection module; 141. control signal connection unit; 142. video signal connection unit; 1421. optical-mechanical signal transmission unit; 1422. first connection interface; 1423. touch screen signal transmission unit; 1424. second connection interface; 15. Switch module; 16. Power amplifier module; 17. Power supply module; 171. Power supply switch; 172. Standby power supply unit; 173. 3.3V power supply unit; 174. 1.8V power supply unit; 18. Wireless transmission module; 2. Projection light machine; 3. Touch screen. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] First, see Figure 1-19 The present invention discloses a projector control circuit 1, which includes a projection optical machine module 12, a touch screen module 13, a main control module 11 and a connection module 14. The main control module 11 is connected to the connection module 14, and the connection module 14 is respectively connected to the projection optical machine module 12 and the touch screen module 13. The projection optical machine module 12 controls the projection optical machine 2 of the projector 100, and the touch screen 3 controls the touch screen 3.

[0026] Specifically, the projection optical machine module 12 includes a horizontal screen display unit 121 and a projection optical machine backlight unit 122, wherein the horizontal screen display unit 121 is used to display the image and video data that the projection optical machine 2 needs to project, and the projection optical machine backlight unit 122 is used to control the backlight of the projection optical machine 2 to turn on and off; the touch screen module 13 includes a touch screen backlight unit 131, a touch screen display unit 132 and a touch screen control unit 133, wherein the touch screen display unit 132 is used to display the image and video data, the touch screen control unit 133 is used to collect the touch signal of the touch screen 3, and the touch screen backlight unit 131 is used to control the backlight of the touch screen 3 to turn on and off; the connection module 14 includes a control signal connection unit 141 and a video The signal connection unit 142 includes a control signal connection unit 141 for receiving a touch signal from the touch screen control unit 133, and a video signal connection unit 142 for transmitting image and video data to the projection optical machine 2 or the touch screen 3; the main control module 11 includes a control unit 111, an optical machine driving unit 112, a touch screen signal unit 113 and a touch screen driving unit 114, wherein the optical machine driving unit 112 is used to send the image and video data to be projected by the projection optical machine 2, the touch screen driving unit 114 is used to send the image and video data to be displayed by the touch screen 3, and the touch screen signal unit 113 is used to receive the signal transmitted by the control signal connection unit 141; the control unit 111 is used to coordinate various internal units. The touch screen control unit 133 is connected to the touch screen display unit 132, and the display content output by the touch screen display unit 132 is the same as that of the horizontal screen display unit 121. The video signal connection unit 142 is respectively connected to the touch screen display unit 132 and the horizontal screen display unit 121. The control signal connection unit 141 is connected to the touch screen control unit 133. The video signal connection unit 142 is respectively connected to the touch screen drive unit 114 and the optical mechanical drive unit 112. The control signal connection unit 141 is connected to the touch screen signal unit 113. The control unit 111 is respectively connected to the optical mechanical drive unit 112, the touch screen signal unit 113 and the touch screen drive unit 114.

[0027] It can be understood that the main control module 11 is connected to the connection module 14, and the connection module 14 is respectively connected to the projection optical machine module 12 and the touch screen module 13. The touch signal generated on the touch screen 3 is obtained by the touch screen control unit 133, and is sent to the touch screen signal unit 113 in the main control module 11 via the control signal connection unit 141. The control unit 111 controls the change of the display content according to the signal obtained by the touch screen signal unit 113, and controls the optical machine driving unit 112 and the touch screen driving unit 114 to output the changed display content through electrical signals, so that the touch screen display unit 132 and the horizontal screen display unit 121 display the transmitted image and video data, so that the touch screen 3 can synchronously control the projection content of the touch screen 3 and the projection optical machine 2. The display content of the touch screen 3 and the projection optical machine 2 always remains the same, thereby achieving the effect of synchronous display. The touch control on the touch screen 3 changes the displayed content, so that the projector 100 can be separated from the control of the remote control, and the user is more convenient to use.

[0028] In particular, the control signal connection unit 141 transmits the control signal according to the IIC protocol.

[0029] The main control module 11 includes an optical machine backlight switch unit 115 and a touch screen backlight switch unit 116. The optical machine backlight switch unit 115 is connected to the projection optical machine backlight unit 122, and the touch screen backlight switch unit 116 is connected to the touch screen backlight unit 131. The control unit 111 is connected to the optical machine backlight switch unit 115 and the touch screen backlight switch unit 116 respectively. Specifically, it is necessary to turn off the backlight of the touch screen 3 or the projection optical machine 2. The user touches the touch screen 3, and the touch screen control unit 133 obtains the touch signal of the touch screen 3 and sends it to the touch screen signal unit 113 of the main control module 11. The control unit 111 receives the signal transmitted by the touch screen signal unit 113, and transmits the signal to the optical machine backlight switch unit 115 and the touch screen backlight switch unit 116 respectively, so that the optical machine backlight switch or the touch screen 3 backlight switch is turned off according to the demand. Since the optical machine backlight switch and the touch screen 3 backlight switch are both independently set, the user can choose to turn off two or one of them according to the actual use demand.

[0030] The optical machine driving unit 112 of the main control module 11 can control the projection of the projection optical machine 2, such as adjusting the image shape and position during projection, and can optimize the projected image through operations such as trapezoidal correction and screen rotation. The projected image can be adjusted according to the actual projection effect to achieve a better projection effect.

[0031] As an embodiment, the touch screen backlight unit 131 uses a chip signal of STI9287C, and the main control module 11 uses a chip model of SSD2381.

[0032] The video signal connection unit 142 includes an optical-mechanical signal transmission unit 1421 and a touch screen signal transmission unit 1423, wherein the optical-mechanical signal transmission unit 1421 is connected to the horizontal screen display unit 121, and the touch screen signal transmission unit 1423 is connected to the touch screen display unit 132, wherein the optical-mechanical signal transmission unit 1421 includes a first connection interface 1422, wherein the first connection interface 1422 adopts either an LVDS interface or a MIPI interface, and the touch screen signal transmission unit 1423 includes a second connection interface 1424, wherein the second connection interface 1424 adopts a MIPI interface. In this embodiment, the first connection interface 1422 adopts an LVDS interface.

[0033] Specifically, since the projection optical machine 2 can select an LVDS screen or a MIPI screen, and the touch screen 3 selects a MIPI screen, the connection of the projection optical machine module 12 can use either an LVDS interface or a MIPI interface, while the touch screen 3 uses an MIPI interface.

[0034] The projection optical machine module 12 includes a projection backlight brightness adjustment control unit 123, and the projection backlight brightness adjustment control unit 123 is connected to the main control module 11. Specifically, the projection backlight brightness adjustment control unit 111 adjusts the brightness of the backlight of the projection optical machine 2 according to the electrical signal sent by the main control module 11, so that the brightness of the backlight of the projection optical machine 2 is adjusted according to user needs. The projection backlight brightness adjustment control unit 123 uses a PWM signal to adjust the brightness of the backlight of the projection optical machine 2 through the duty cycle of the signal.

[0035] The projector control circuit 1 includes a power amplifier module 16, which is connected to the main control module 11. The power amplifier module 16 receives audio data sent by the main control module 11. The power amplifier module 16 is connected to a built-in speaker of the projector 100. The speaker can play the audio data transmitted by the power amplifier module 16, so that the projector 100 can play audio and match the content displayed by the projection optical machine 2 and the touch screen 3.

[0036] As an embodiment, the chip model used by the power amplifier module 16 is ACM8625S.

[0037] The projector control circuit 1 includes a switching module 15, the switching module 15 uses a six-axis gyroscope, and the main control module 11 includes a switching unit, which is connected to the switching module 15. The switching module 15 detects the current placement posture of the projector 100 according to the six-axis gyroscope, and automatically adjusts different preset modes according to the prevention posture of the projector 100, such as only lighting up the touch screen 3 when the projector 100 is placed upright, and when the projector 100 is placed flat or tilted, the touch screen 3 and the projection optical machine 2 are lit at the same time.

[0038] As an embodiment, the chip model used by the switching module 15 is LSM6DSDTR.

[0039] The projector control circuit 1 includes a power supply module 17, which is electrically connected to the main control module 11 and connected to an external power source. Specifically, the power supply module 17 not only supplies power to the main control module 11, but also supplies power to the projection optical machine module 12 and the touch screen module 13. The power supply module 17 includes a power switch 171, a standby power supply unit 172, a 3.3V power supply unit 173 and a 1.8V power supply unit 174. The standby power supply unit 172 converts the external input 12V power supply into 3.3V. The power switch 171 is connected to the 1.8V power supply unit 174 and the 3.3V power supply unit 173 respectively. The standby power supply unit 172 is connected to the 3.3V power supply unit 173, and the 3.3V power supply unit 174 is connected to the 1.8V power supply unit 174. The 3V power supply unit 173 is connected to the 1.8V power supply unit 174. The standby power supply unit 172 can provide power when the device is on standby, so that the projector is in a low-power operation state. The standby power supply unit 172 supplies power to some modules to allow them to maintain normal operation when the projector is in low-power operation, and the projector can respond quickly when returning to normal state; the 3.3V power supply unit 173 and the 1.8V power supply unit 174 provide power when other mechanisms are operating normally, and the power supply switch 171 can switch the standby state and the normal state so that the device can be used normally.

[0040] The projection optical machine module 12 includes a projection optical machine power supply unit 124, which is respectively connected to the 3.3V power supply unit 173 and the first connection interface 1422. The projection optical machine power supply unit 124 transforms the input power supply into power supply parameters suitable for the projection optical machine, and supplies power to the connected projection optical machine via the first connection interface 1422 so that it can operate normally. In addition, the projection optical machine power supply unit 124 is connected to the main control module 11, and the main control module 11 controls the operation of the projection optical machine power supply unit 124 through electrical signals.

[0041] In particular, the projection optical power supply unit 124 uses a boost converter chip. In this embodiment, the projection optical power supply unit 124 uses a boost converter chip model STI3508CB.

[0042] The touch screen module 13 includes a touch screen power supply unit 134, which is connected to the 3.3V power supply unit 173 and the second connection interface 1424 respectively. The touch screen power supply unit 134 converts the power output by the 3.3V power supply unit 173 into the power supply parameters of the touch screen connected to the second connection interface 1424, so that the connected touch screen can operate normally.

[0043] In particular, the touch screen power supply unit 134 uses a voltage stabilizing chip. In this embodiment, the touch screen power supply unit 134 uses a voltage stabilizing chip of the model GD30LD2000NSTR-I18.

[0044] The projector control circuit 1 includes a wireless transmission module 18, which is connected to the main control module 11. The wireless transmission module 18 is used for wireless connection with external electronic devices and signal transmission. It can be connected to the user's mobile phone, tablet computer and other electronic devices. The wireless transmission module 18 can use Bluetooth or WiFi for wireless transmission, so that the projector 100 is wirelessly connected to other electronic devices and transmits wireless signals.

[0045] As an embodiment, the wireless transmission module 18 uses a chip signal of AIC8800D40.

[0046] Second, see Fig. 20 The present invention discloses a projector 100, which includes the above-mentioned projector control circuit 1, a shell, a touch screen 3, and a projection optical machine 2. The projector control circuit 1 is connected to the touch screen 3 and the projection optical machine 2 respectively. The projector control circuit 1, the touch screen 3, and the projection optical machine 2 are arranged in the shell, and the light-emitting positions of the touch screen 3 and the projection optical machine 2 are arranged on two different surfaces of the shell.

[0047] Specifically, the projector 100 is provided with a projection light engine 2 and a touch screen 3. The light emitting positions of the projection light engine 2 and the touch screen are set on different surfaces of the shell. The touch screen 3 can be controlled by finger touch to change the display content of the touch screen 3, and the content projected by the touch screen 3 and the projection light engine 2 is the same. By controlling the touch screen 3, the display content of the touch screen 3 and the projection light engine 2 can be changed, so that the projector 100 can be separated from the remote control and is more convenient to use.

[0048] As an embodiment, a touch screen 3 is provided on the projector 100, so that the projector 100 can be used as a tablet computer, an electronic clock, and an electronic photo frame. In addition, the projector 100 can realize the function of a learning machine, and the learning content is projected by the projection optical machine 2, so that children can avoid using a small-size screen for a long time, thereby protecting their eyesight.

[0049] As an embodiment, the projector 100 can be wirelessly connected to electronic devices via WiFi or Bluetooth. When the projection optical module 12 is turned off, the projector 100 is used as a speaker with a screen, and audio data is transmitted via WiFi or Bluetooth. The touch screen 3 can display information such as lyrics.

[0050] Thirdly, see Fig.21 The present invention discloses a projector synchronous display method, which is applied to the projector and comprises the following steps: The touch screen and the projection light machine simultaneously display the first display content; The touch screen obtains the touch signal and transmits an electrical signal corresponding to the touch signal to the main control module; The main control module responds to the electrical signal and adjusts the first display content according to the electrical signal to obtain the second display content; The second display content is synchronously sent to the touch screen and the projector, and the touch screen and the projector display the second display content synchronously.

[0051] Specifically, the touch screen and the projection light machine display the first display content at the same time, that is, the two display the same content synchronously. The user touches the touch screen with his finger to control the change of the display content, and the projector changes the display content accordingly, that is, the projector needs to display the second display content, and the touch screen and the projection light machine display the changed display content at the same time, that is, the second display content. It can be understood that the touch screen and the projection light machine respond to and display touch operations at the same time, and touch changes the displayed content, which is more convenient than traditional remote control control. In addition, compared with mechanical buttons, touch control can generate virtual buttons at will, and can display the control content in response to the virtual buttons, making the operation more convenient.

[0052] The following steps are also included: The trapezoidal correction module obtains image display features and uses a trapezoidal correction algorithm to adjust the picture of the second display content; the image display features include the boundary and shape of the picture, the projection distance, and the projection depth.

[0053] Specifically, when projecting an image, the projection optical machine adjusts the image by using a trapezoidal correction algorithm, rotating the image, etc. according to the shape, position and other characteristics of the actual image being projected, so as to achieve a better projection effect.

[0054] In particular, the trapezoidal correction module adopts either a TOF sensor or a camera or a combination of the two. The TOF sensor and the camera can be arranged on the housing and on the same surface as the projection optical machine.

[0055] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0061] 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 equivalents, the present invention is also intended to include these modifications and variations.

[0062] The above is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A projector control circuit, characterized in that: include: A projection optical machine module, including a horizontal screen display unit; A touch screen module, comprising a touch screen control unit and a touch screen display unit, wherein the touch screen control unit is connected to the touch screen display unit, and the touch screen display unit and the horizontal screen display unit output the same display content; A connection module, comprising a control signal connection unit and a video signal connection unit, wherein the video signal connection unit is connected to the touch screen display unit and the horizontal screen display unit respectively, and the control signal connection unit is connected to the touch screen control unit, and the control signal connection unit is used to receive a touch signal from the touch screen control unit; The main control module includes a control unit, an optical-mechanical driving unit, a touch screen signal unit and a touch screen driving unit, wherein the video signal connection unit is respectively connected to the touch screen driving unit and the optical-mechanical driving unit, the control signal connection unit is connected to the touch screen signal unit, and the control unit is respectively connected to the optical-mechanical driving unit, the touch screen signal unit and the touch screen driving unit.

2. The projector control circuit according to claim 1, characterized in that: The projection optical machine module includes a projection optical machine backlight unit, and the touch screen module includes a touch screen backlight unit; The main control module includes an optical machine backlight switch unit and a touch screen backlight switch unit. The optical machine backlight switch unit is connected to the projection optical machine backlight unit, and the touch screen backlight switch unit is connected to the touch screen backlight unit.

3. The projector control circuit according to claim 1, characterized in that: It includes a power amplifier module, and the power amplifier module is connected to the main control module.

4. The projector control circuit according to claim 1, characterized in that: It includes a switching module, wherein the switching module adopts a six-axis gyroscope; The main control module includes a switching unit, and the switching unit is connected to the switching module.

5. The projector control circuit according to claim 1, characterized in that: The video signal connection unit includes an optical-mechanical signal transmission unit and a touch screen signal transmission unit, the optical-mechanical signal transmission unit is connected to the horizontal screen display unit, and the touch screen signal transmission unit is connected to the touch screen display unit; The optical-mechanical signal transmission unit includes a first connection interface, and the first connection interface adopts either an LVDS interface or a MIPI interface; The touch screen signal transmission unit includes a second connection interface, and the second connection interface adopts a MIPI interface.

6. The projector control circuit according to claim 1, characterized in that: The projection optical machine module comprises a projection backlight brightness adjustment control unit, and the projection backlight brightness adjustment control unit is connected to the main control module.

7. The projector control circuit according to claim 1, characterized in that: It includes a power supply module, which is electrically connected to the main control module and connected to an external power source.

8. The projector control circuit according to claim 1, characterized in that: It includes a wireless transmission module, and the wireless transmission module is connected to the main control module.

9. A projector, characterized in that: The projector control circuit, housing, touch screen and projection optical machine of any one of claims 1 to 8 are included; The projector control circuit is connected to the touch screen and the projection light engine respectively, and the light emitting positions of the touch screen and the projection light engine are arranged on two different surfaces of the housing.

10. A projector synchronous display method, applied to the projector according to claim 9, characterized in that: The following steps are involved: The touch screen and the projection light machine simultaneously display the first display content; The touch screen obtains the touch signal and transmits an electrical signal corresponding to the touch signal to the main control module; The main control module responds to the electrical signal and adjusts the first display content according to the electrical signal to obtain the second display content; The second display content is synchronously sent to the touch screen and the projector, and the touch screen and the projector display the second display content synchronously.

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