Desktop projection display device for computer and computer system

Abstract

The present invention relates to the field of computer accessories. Specifically disclosed are a desktop projection display device for a computer, and a computer system. The computer system comprises a computer system unit and, connected thereto, a desktop projection display device for a computer; the desktop projection display device for a computer comprises a mounting support, a screen and a projection apparatus; the projection apparatus comprises a projection optical engine and a projection system unit that are independent of each other; the projection optical engine is in a wired / wireless connection to the projection system unit, projection light rays of the projection optical engine being projected onto the screen; the projection system unit is connected to the computer system unit. The desktop projection display device in the present invention directly replaces existing active light-emitting display screens, and can be used without the need to replace computer system units, thereby saving resource costs. In addition, the projection optical engine and the projection system unit in the present invention are separated from each other, and the projection optical engine is arranged above the screen, such that not only the requirement of users for normally watching the screen will not be affected, but also an occupied desktop space will not be increased.

Description

A desktop projection display device for a computer and a computer system TECHNICAL FIELD

[0001] The present application relates to the field of computer accessories, in particular to a desktop projection display device for a computer and a computer system. BACKGROUND

[0002] A computer is an indispensable electronic device in people's work and life, and people use computers for socializing, completing work, playing games, etc. A common desktop computer includes a computer host and a display, and is also equipped with a keyboard, a mouse and other devices. The existing display adopts an active light-emitting principle. For example, a commonly used OLED (Organic Light-Emitting Diode) display adopts a display principle of driving an organic semiconductor material and a light-emitting material to emit light through carrier injection and recombination. The essence is that an ITO (Indium-Tin Oxide) glass transparent electrode is used as a device anode, a metal electrode is used as a cathode, an electron is transmitted from the cathode to an electron transport layer, a hole is injected from the anode to a hole transport layer, and then the two are migrated to a light-emitting layer. When the two meet, an exciton is generated to excite a light-emitting molecule, and light is generated after radiation.

[0003] Such light-emitting technology stimulates the eyes of the user more, and long-term use can cause eye irritation, vision decline, etc. and even cause vision damage. In addition, the active light-emitting display has high energy consumption, which is not conducive to the realization of energy saving and carbon reduction. In order to reduce the stimulation of such a display to the user and reduce energy consumption, some existing smart computers use a passive light-emitting principle to display images. For example, a projection principle is used to form a projection on a screen, and then the diffuse reflection of the screen is used to shoot image light signals into the eyes, which can reduce the damage caused by direct projection of light into the eyes. At the same time, the use of a projector for projection display is also conducive to the reduction of power consumption.

[0004] For example, the patent application with the publication number CN109582094A discloses an interactive eye protection screen smart computer, which includes an interactive eye protection screen and a smart projector. The smart projector has the functions of a computer host and projection onto the interactive eye protection screen, and the interactive eye protection screen has the functions of image display and interaction with people. However, in the existing computer with a projection structure, the projection part is integrated in the base, resulting in a large structure of the base, which is obviously not suitable for modern work environments (the desktop width is 50-65 cm). After being placed, it occupies the desktop space required for people to use the keyboard, mouse and normal work.

[0005] In addition, in the existing computer with projection function, the projector is integrated in the computer host, and if the display structure using this function is needed, the whole computer needs to be replaced with a new computer system, which wastes the original computer host and increases unnecessary expenses.

[0006] Therefore, how to consider the normal work space on the desktop and save the cost without replacing the host has become the research direction of the existing projection display computer. SUMMARY

[0007] In order to overcome the shortcomings of the prior art, the present application provides a desktop projection display device for computer and a computer system, which directly replaces the existing active light-emitting display screen, and can be used without replacing the computer host, saving resource cost; and the projection light machine and the projection host are separated, and the projection light machine is placed on the upper side of the curtain, which does not affect the normal viewing of the curtain by the user and does not increase the occupied desktop space.

[0008] The technical scheme of the present application is as follows:

[0009] A desktop projection display device for computer, characterized in that the desktop projection display device is used to connect with a computer host, and comprises a mounting bracket, a curtain and a projection device.

[0010] The projection device comprises a projection light machine and a projection host which are independent of each other, the projection light machine is connected with the projection host by wire / wireless, the projection light of the projection light machine is projected onto the curtain, and the projection host is connected with the computer host.

[0011] According to the above-mentioned scheme, the projection light machine is located on the front side of the curtain, and the projection light machine is installed on the upper side of the curtain through the mounting bracket.

[0012] According to the above-mentioned scheme, the projection host is located on the lower side of the curtain, or the projection host is located on the rear side of the curtain.

[0013] According to the above-mentioned scheme, the mounting bracket comprises a back bracket and a top bracket, the top of the back bracket is connected with the top bracket, and the projection light machine is installed on the top bracket.

[0014] Further, the top bracket is movably connected with the back bracket, and a screwing member is arranged at the connection position.

[0015] Further, the top support is an adjustable support, and the top support is used for adjusting the projection focal length of the projection light machine.

[0016] Further, the mounting support further comprises a bottom support, and the bottom of the back support is connected with the bottom support.

[0017] According to the application of the above scheme, the projection host computer is internally provided with a projection mainboard, a DMD imaging board, an LED driving board and a power supply board, the projection mainboard is provided with a host computer interface connected with the outside, and the projection mainboard is connected with a power supply host computer and an external power supply through the host computer interface.

[0018] According to the application of the above scheme, the projection light machine comprises a projection light source, a projection lens and a projection display device.

[0019] On the other hand, a computer system comprises a computer host computer and the desktop projection display device for a computer, the projection host computer in the desktop projection display device for a computer is connected with the computer host computer, and the projection host computer can also be connected with other electronic devices needing to output a video signal.

[0020] According to the application of the above scheme, the beneficial effects are as follows:

[0021] The projection host computer and the projection light machine are separated in the application, the projection host computer is arranged on the support, and the projection light machine is arranged on the upper side of the curtain, so that the desktop space can be avoided by the projection-related structure, the computer desktop in the present work and life can be arranged, the projection light machine is arranged on the upper side of the curtain, the size of the upper projection device can be reduced, and the user's vision can be avoided by the large projection device.

[0022] In addition, the projection host computer and the projection light machine are arranged at two different positions in the application, the gravity distribution of the whole projection display device can be more reasonably arranged, the weight of the upper structure can be reduced, and the structural stability of the whole device can be ensured.

[0023] The desktop projection display device in the application is only used for projection display, can be directly connected with the computer host computer, does not need to be equipped with a complete computer system, and is more cost-saving. Meanwhile, the projection light machine is used for image projection in the application, the power consumption of the power supply can be reduced, and the environmental protection requirement of the country for energy saving and carbon reduction is met. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a schematic diagram of an application scene of the application;

[0025] Fig. 2 is a structural schematic diagram of one perspective of the application;

[0026] Fig. 3 is a partial enlarged view of Fig. 2;

[0027] Fig. 4 is a structural schematic view of another perspective of the present application;

[0028] Fig. 5 is a partial enlarged view of Fig. 4.

[0029] In the drawings, various drawing reference numbers are;

[0030] 100, device body; 110, support base; 111, base body; 112, rear slot; 113, leg; 114, front slot; 120, bottom support; 130, rear back support; 131, support perforation; 140, top support; 141, support slot; 150, tightening member; 160, curtain; 170, projection light machine; 171, projection light; 180, projection main machine; 181, main machine interface;

[0031] 200, table top. DETAILED DESCRIPTION

[0032] The present application is further described below in conjunction with the drawings and embodiments:

[0033] As shown in Figs. 1-5, in order to solve the defects of high cost and occupying user table space of the existing projection computer structure, the present application proposes a computer system, which comprises a computer main machine and a table top projection display device for computer, wherein the projection main machine 180 in the table top projection display device for computer is connected with the computer main machine.

[0034] The present application uses the table top projection display device to perform passive projection display, which can reduce the damage to human eyes caused by the existing OLED display screen or other LED display screen, LCD display screen, etc. Meanwhile, the table top projection display device for computer can directly replace the existing display screen as a whole, without replacing the entire computer system, thereby saving the cost waste caused by replacement of the computer main machine. In addition, the design of the table top projection display device for computer can reduce the space waste caused by the entire projection structure, thereby ensuring the normal office and life needs of the user for the table space.

[0035] In use, the device body 100 of the table top projection display device for computer is directly placed on the table top 200, and the table top projection display device for computer is connected with the computer main machine. That is, the connection of the entire computer system can be completed by referring to the connection mode of the existing display screen. Of course, in the present application, the table top projection display device for computer can also be connected with other electronic devices requiring output of video signals, so as to realize projection display.

[0036] As shown in FIG. 2 to FIG. 5, the present application provides a desktop projection display device for computer, which is used for connecting with computer host, i.e. can complete the functions of signal receiving, image projecting, etc. In the embodiment, the desktop projection display device for computer is in separated structure with the computer host, in other embodiments, the projection host 180 in the desktop projection display device for computer can also be integrated with the computer host directly, and the functions of the present application can also be realized, which will not be described here.

[0037] The desktop projection display device for computer comprises a mounting bracket, a screen 160, and a projection device. The mounting bracket is used as the hardware installation basis of the whole projection display device, and provides a stable support basis; the screen 160 is used as the receiving structure of the projection light signal, which reflects the light signal to the human eye by diffuse reflection after receiving the light signal, and can reduce the damage to the human eye caused by the active light emitting display screen; the projection device is the main component of signal receiving and light signal projecting, and through the structural design of the projection device, the space can be saved, the structure is stable, and the obstruction can be avoided.

[0038] In one implementation, the screen 160 is a hard screen, which is directly laid on the mounting bracket; in another implementation, the screen 160 is a soft screen, which can be a roller shutter type soft screen, and can be stored when not in use, and can also be a soft screen with a frame, which is directly laid on the mounting bracket.

[0039] In the present application, the projection device comprises a projection light machine 170 and a projection host 180 which are independent of each other, the projection light machine 170 is connected with the projection host 180 by wire / wireless, the projection light 171 of the projection light machine 170 is projected on the screen 160, and the projection host 180 is connected with the computer host. The projection host 180 is the main component of signal receiving and processing, which is connected with the computer host, can receive the control signal of the computer host and send the projection control signal, the projection light machine 170 receives the control signal of the projection host 180, and sends the light signal for projecting on the screen 160 for display. In order to realize the function of the projection host 180, the projection host 180 is provided with a host interface 181 in the present application, so that the projection host 180 can transmit signals with the computer host through the host interface 181, and can be connected with the power supply for power supply, in addition, the projection host 180 can also be connected with the projection light machine 170 through the host interface 181 (in the preferred embodiment, the projection host 180 is connected with the projection light machine 170 by internal wiring).

[0040] Specifically, the projection host 180 is internally provided with a projection mainboard, a DMD (Digital Micromirror Device) imaging board, an LED driving board and a power board, the projection mainboard is provided with a host interface 181 connected with the outside, the host interface 181 is extended from the shell of the projection host 180, and the projection mainboard is connected with a power host, an external power source and the like through the host interface 181. The projection light machine 170 includes a projection light source, a projection lens and a projection display device, which integrates a DMD display core, a light source, a lens light path, heat dissipation and the like.

[0041] The projection light machine 170 and the projection host 180 are separated from each other, and the projection light machine 170 is arranged on the upper side of the curtain 160, so that the waste of the desktop space caused by arranging the entire projection device on the desktop can be saved, the instability of the structure caused by arranging the entire projection device on the upper side can be avoided, the view of the user can be avoided to be affected by the entire projection device, the gravity distribution of the entire device can be more balanced through the position cooperation of the projection light machine 170 and the projection host 180.

[0042] Specifically, in the implementation process, the projection light machine 170 is located on the front side of the curtain 160, and the projection light machine 170 is installed on the upper side of the curtain 160 through the mounting bracket, so that the projection light machine 170 can project on the front side of the curtain 160, which is beneficial to the user to watch, and the projection light machine 170 arranged on the upper side can avoid affecting the observation line of sight of the user. In one preferred embodiment, the projection light machine 170 is movably connected with the mounting bracket (for example, magnetically connected, buckled, etc.), so that the projection light machine 170 can be more conveniently assembled and separated from the mounting bracket, which is beneficial to disassembly and is more suitable for application scenarios that need to be disassembled and stored frequently.

[0043] In one embodiment, the projection host 180 is located on the lower side of the curtain 160, so that the projection host 180 serves as a support base of the curtain 160, and the projection host 180 realizes the function of one machine with multiple uses. In another embodiment, the projection host 180 is located on the rear side of the curtain 160, so that the curtain 160 can be used to shield the projection host 180, and the appearance of the entire structure is increased, and the gravity balance of the projection host 180 and the projection light machine 170 can be ensured based on the distribution of the curtain 160 on the front and rear sides, so that the stability of the entire projection display device is ensured.

[0044] The mounting support comprises a back support 130, a top support 140, the top of the back support 130 is connected with the top support 140, the projection light machine 170 is mounted on the top support 140, and the curtain 160 is mounted on the front side of the back support 130. The top support 140 is located on the top side of the curtain 160, and the front end of the top support 140 extends towards the front side of the curtain 160, so that the projection light 171 of the projection light machine 170 can enter the curtain 160 to display images, and the projection light machine 170 is located on the upper side of the curtain 160, which can avoid blocking the viewing line of the user.

[0045] In the specific implementation process, the top support 140 and the back support 130 are detachably connected and are limited and clamped through a clamping groove (the clamping position is fixed through a screwing part 150), which can not only enable the entire mounting support to be stored during transportation, but also limit the top support 140 and the back support 130 to a fixed mounting position, thereby avoiding the influence of the projection effect caused by the unfamiliarity of the user. In another embodiment, the top support 140 and the back support 130 are movably connected, and a screwing part 150 is arranged at the connection position, so that the top support 140 and the back support 130 can be rotated, thereby realizing the adjustment of the projection angle of the projection light machine 170, which is beneficial to the adjustment of the user according to the requirements.

[0046] In order to increase the adjustable function of the mounting support, the top support 140 in the present application is an adjustable support, and the top support 140 is used for adjusting the projection focal length of the projection light machine 170; and / or the back support 130 is an adjustable support, and the back support 130 is used for adjusting the mounting height of the projection light machine 170. That is, in one implementation structure, only the top support 140 is adjustable, so as to realize the adjustment of the projection focal length of the projection light machine 170; in another implementation structure, only the back support 130 is adjustable, so as to realize the adjustment of the height of the projection light machine 170; in a third implementation structure, the top support 140 and the back support 130 are both adjustable, so as to facilitate the user to make omnibearing angle adjustment.

[0047] Specifically, the adjustable support can be realized through the structure of an inner sleeve and an outer sleeve, and the adjustment of the relative position between the inner sleeve and the outer sleeve is used to realize the adjustment of the support. In addition, the adjustable support can also be realized through detachable support units, and the connection of different numbers of support units is used to realize the length control of the adjustable support. The above two embodiments are specific implementation structures, and the existing adjustment mode can be used to realize the adjustment, and the present application will not be described in detail.

[0048] In order to realize the electrical connection of the projection light machine 170 and the projection host 180, and avoid the wiring disorder, the mounting bracket in the present application is provided with a channel for wiring. Specifically, the middle part of the back bracket 130 is hollow to form a bracket perforation 131, the bracket perforation 131 is used to reduce the weight of the back bracket 130, and the bracket perforation 131 is used for the cable of the projection light machine 170 to pass through. The top bracket 140 is provided with a bracket slot 141, in one implementation of the projection light machine 170, the bracket slot 141 can be directly used for the cable of the projection light machine 170 to pass through, which is conducive to realizing the integrated layout of the projection light machine 170; in another implementation of the projection light machine 170, the bracket slot 141 can also be used for arranging a long strip-shaped PCB circuit board and the related cable connected to the circuit board, which can realize the near driving of the PCB circuit board and reduce the laying area of the cable. The bracket slot 141 can also be used for heat dissipation of the projection light machine 170, and since the projection light machine 170 belongs to a high heat output component, the design of the bracket slot 141 can be more conducive to the heat dissipation of the projection light machine 170, based on which, the top bracket 140 can be made of a material with higher heat dissipation efficiency (such as aluminum material or a component equipped with a semiconductor cooling structure), which is conducive to the heat dissipation of the projection light machine 170 and has small weight, avoiding the defect of unstable structure caused by installing a heavy component on the top.

[0049] In addition, the mounting bracket in the present application also includes a bottom bracket 120, and the bottom of the back bracket 130 is connected with the bottom bracket 120. In addition, the bottom bracket 120 is also used for supporting the curtain 160. In order to ensure the flatness of the curtain 160, in one preferred embodiment, the curtain 160 is a soft curtain / hard curtain, and the periphery thereof is provided with a supporting frame, and the bottom of the supporting tube is borne on the upper side of the bottom bracket 120. In other embodiments, the curtain 160 can also be only a flexible transparent cloth without a supporting frame, at this time, the curtain 160 can be wound by a winding device, and the winding device is supported on the bottom bracket 120 or the back bracket 130. The winding device of the curtain is not the improvement of the present application, and is not limited in detail.

[0050] In the specific implementation process, the bottom bracket 120 is in the form of a long strip-shaped plate, the front side step and the rear side step are formed on the bottom bracket 120 located on the front and rear sides of the back bracket 130, the curtain 160 is supported on the front side step, and the projection host 180 is supported on the rear side step and fixedly connected with the back bracket 130. Through the design of the bottom bracket 120, the gravity supporting structure of the curtain 160 and the projection host 180 can be increased, and the balance of the whole projection display device can also be increased.

[0051] In order to increase the stability of the whole projection display device, the mounting bracket further comprises a bracket base 110, and the bottom bracket 120 is mounted on the bracket base 110, so that the projection host 180, the projection light machine 170 and the top bracket 140 and the back bracket are all on the bracket base 110, and the bracket base 110 serves as a support base of the whole structure.

[0052] Specifically, the bracket base 110 comprises a base body 111, and the side surface of the base body 111 is in a C shape. The bottom of the base body 111 extends forward to form two feet 113, and the two feet 113 are linearly recessed to form a front groove 114; the middle part of the base body 111 protrudes to the rear side, and the protruding position is recessed to form a hollow rear groove 112; the upper part of the base body 111 extends to the front side to form a support plane, and the bottom bracket 120 is mounted on the support plane. Since the projection light machine 170 is located on the front side of the curtain 160, the design of the front groove 114 and the rear groove 112 can not only reduce the weight of the whole base body 111 and save raw material cost, but also balance the gravity.

[0053] In addition, the length of the base body 111 protruding to the front side of the curtain 160 is equal to the length of the base body 111 protruding to the rear side of the curtain 160, so as to balance the gravity caused by the position of the projection light machine 170.

[0054] The present application realizes passive light emission by projection and curtain, reduces the eye irritation caused by the existing OLED display screen structure, and is beneficial to protecting the vision of the user. The desktop projection display device for computer can directly replace the existing display screen, and can be used by being directly connected with the computer host, without the need of replacing the whole computer system, thereby saving the cost caused by replacing the computer host.

[0055] In addition, the present application places the projection light machine above the front side of the curtain, so as to avoid wasting space on the desktop and affecting the space for normal operation of the user. Moreover, the present application separates the projection host and the projection light machine from each other, so as to reduce the space occupied by the top projection light machine and the weight thereof. Meanwhile, the present application balances the gravity distribution through the design of the whole structure, so as to ensure the stability of the whole structure.

[0056] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the present application.

[0057] The patent of the application is exemplarily described above in combination with the drawings, and it is obvious that the implementation of the patent of the application is not limited by the above-mentioned mode, as long as various improvements are made by adopting the method concept and technical scheme of the patent of the application, or the concept and technical scheme of the patent of the application is directly applied to other occasions without improvement, which are all within the protection scope of the patent of the application.

Claims

1. A desktop projection display device for a computer, characterized in that, The desktop projection display device is used for connecting with a computer host, and comprises a mounting support, a curtain and a projection device; The projection device comprises a projection light machine and a projection host which are independent of each other, the projection light machine is connected with the projection host in wired or wireless mode, the projection light of the projection light machine is projected on the curtain, and the projection host is connected with the computer host.

2. The desktop projection display apparatus for a computer according to claim 1, wherein The projection light machine is located at the front side of the curtain, and the projection light machine is mounted above the curtain through the mounting support.

3. The desktop projection display apparatus for a computer according to claim 1 or 2, wherein The projection host is located at the lower side of the curtain, or the projection host is located at the rear side of the curtain.

4. The desktop projection display apparatus for a computer according to claim 1, wherein The mounting support comprises a back support and a top support, the top of the back support is connected with the top support, and the projection light machine is mounted on the top support.

5. The desktop projection display apparatus for a computer according to claim 4, wherein The top support is movably connected with the back support, and a screwing part is arranged at the connecting position.

6. The desktop projection display apparatus for a computer according to claim 4, wherein The top support is an adjustable support, and is used for adjusting the projection focal length of the projection light machine. The back support is an adjustable support, and is used for adjusting the mounting height of the projection light machine.

7. The desktop projection display apparatus for a computer according to claim 4, wherein The mounting support further comprises a bottom support, and the bottom of the back support is connected with the bottom support.

8. The desktop projection display apparatus for a computer according to claim 1, wherein The projection host is internally provided with a projection mainboard, a DMD imaging board, an LED driving board and a power board, the projection mainboard is provided with a host interface connected with the outside, and the projection mainboard is connected with the power host and the external power supply through the host interface.

9. The desktop projection display apparatus for a computer according to claim 1, wherein The projection light machine comprises a projection light source, a projection lens and a projection display device.

10. A computer system, comprising: The desktop projection display device for computer is connected with the computer host.

Images