CN221884337U - Scanning pen with projection function - Google Patents

Abstract

A scanning pen with a projection function relates to the technical field of scanning pens, and specifically comprises: the scanning pen body is used for scanning and acquiring text information on a scanning surface, and converting the text information acquired by scanning to generate information to be displayed; and the projection assembly is in communication connection with the scanning pen body and is used for projecting the information to be displayed onto a display surface for display, and the display surface and the scanning surface are positioned on the same side of the scanning pen body. And the information to be displayed generated by scanning the scanning pen body is projected and displayed through the projection assembly, so that the display content of the scanning pen body is not limited by the size of the traditional display screen of the scanning pen body, and the user experience of a user is improved. In addition, the display surface and the scanning surface are positioned on the same side of the scanning pen body, so that a user can read after scanning without converting the visual angle, and the user experience of the user is further improved.

Description

Scanning pen with projection function

Technical Field

The utility model relates to the technical field of scanning pens, in particular to a scanning pen with a projection function.

Background Art

With the development of OCR (Optical Character Recognition) text recognition technology, scanning input technology is widely used in scanning pens, such as scanning translation pens, scanning reading pens, etc., which greatly improves the speed of information input and brings great convenience to people's lives.

The current scanning pen mainly includes a pen body, an OCR scanning module and a display screen. The OCR scanning module is arranged at the bottom of the pen body, and the display screen is arranged on the pen body. The information obtained by the OCR scanning module or the processed information (such as translated information) can be displayed on the display screen; in addition, the display screen can also display the status information of the scanning pen (such as battery status, etc.), interactive information (setting the working mode of the scanning pen, etc.), etc.

However, the scanning pen in the prior art still has many limitations in application.

Utility Model Content

The technical problem solved by the utility model is to provide a scanning pen with a projection function to improve the user experience of the user.

In order to solve the above-mentioned problem, the technical solution of the utility model provides a scanning pen with a projection function, including: a scanning pen body, used to scan and obtain text information on a scanning surface, and convert the scanned text information to generate information to be displayed; a projection component communicatively connected to the scanning pen body, used to project the information to be displayed onto a display surface for display, and the display surface and the scanning surface are located on the same side of the scanning pen body.

Optionally, the projection assembly is assembled on the scanning pen body.

Optionally, the projection assembly is fixedly mounted on the scanning pen body, and a fixed angle is formed between a projection direction of the projection assembly and an extension direction of the scanning pen body, and the range of the fixed angle is 30° to 60°.

Optionally, the scanning pen body has a projection opening, and the projection light of the projection component passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has relative upper and lower edges, and the projection light of the projection component passes through the upper and lower edges.

Optionally, the projection assembly is rotatably mounted on the scanning pen body, and an adjustable angle is provided between the projection direction of the projection assembly and the extension direction of the scanning pen body, and the range of the adjustable angle is 30° to 60°.

Optionally, the scanning pen body has a projection opening, and the projection light of the projection assembly passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has relative upper and lower edges; when the adjustable angle is adjusted to the minimum, the projection light of the projection assembly passes through the lower edge; when the adjustable angle is adjusted to the maximum, the projection light of the projection assembly passes through the upper edge.

Optionally, the projection component and the scanning pen body are separate structures.

Optionally, it also includes: a wireless communication module, which is used for communication connection between the projection component and the scanning pen body.

Optionally, the wireless communication module includes: a first sub-communication module electrically connected to the scanning pen body; and a second sub-communication module electrically connected to the projection component.

Optionally, it further includes: a projection bracket, and the projection component is assembled on the projection bracket.

Optionally, the scanning pen body includes: a scanning mechanism, used to scan and obtain text information on the scanning surface, and convert the text information into a digital signal; a processing module communicatively connected to the scanning mechanism and the projection component, respectively, used to convert the digital signal into the information to be displayed, and transmit the information to be displayed to the projection component for projection display.

Optionally, the scanning mechanism includes: a scanning head for scanning and acquiring text information on the scanning surface; and a character recognition module communicatively connected to the scanning head, for recognizing the text information and converting the text information into the digital signal.

Optionally, the information to be displayed includes: original text information or text information in a target language.

Optionally, the scanning pen body includes: a display screen for displaying the information to be displayed.

Optionally, the scanning pen body includes: a voice broadcast component, which is used to voice broadcast the information to be displayed.

Optionally, the projection component is a monochrome projection light machine.

Optionally, the projection assembly includes: a micro display panel; a lens assembly fixedly connected to the micro display panel; wherein the micro display panel includes: a display circuit board; a display chip electrically connected to the display circuit board, the display chip corresponding to the lens assembly; and a connector electrically connected to the circuit board.

Optionally, the projection component is a color projection light engine.

Optionally, the projection assembly includes: 3 micro display panels; a light combining prism, the light combining prism having 3 light incident surfaces and 1 light exiting surface, the 3 micro display panels respectively corresponding to the 3 light incident surfaces of the light combining prism; a lens assembly, the lens assembly corresponding to the light exiting surface of the light combining prism; wherein each of the micro display panels includes: a display circuit board; a display chip electrically connected to the display circuit board, the display chip corresponding to the lens assembly; and a connector electrically connected to the circuit board.

Compared with the prior art, the technical solution of the utility model has the following advantages:

In the scanning pen with projection function of the technical solution of the utility model, the information to be displayed generated by scanning the scanning pen body is projected and displayed by the projection component, so that the display content of the scanning pen body is not limited by the size of the traditional display screen of the scanning pen body, thereby improving the user experience. In addition, the display surface and the scanning surface are located on the same side of the scanning pen body, and the user can read after scanning without changing the viewing angle, further improving the user experience.

Furthermore, the projection assembly is assembled on the scanning pen body. By integrating the projection assembly and the scanning pen body into an integral structure, it is convenient for users to carry.

Furthermore, the scanning pen body has a projection opening, and the projection light of the projection component passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has relative upper and lower edges, and the projection light of the projection component passes through the upper and lower edges, which can ensure that the size of the projection opening is minimized to enhance the aesthetics of the appearance, and will not block the projection light of the projection component and affect the projection display effect.

Furthermore, the projection assembly is rotatably mounted on the scanning pen body, and an adjustable angle is formed between the projection direction of the projection assembly and the extension direction of the scanning pen body. The projection angle of the projection assembly can be adjusted by rotating to meet the holding habits of different users when using the scanning pen body, to meet the usage needs of different users, and thus improve the user experience.

Furthermore, the scanning pen body has a projection opening, and the projection light of the projection component passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has an upper edge and a lower edge relative to each other; when the adjustable angle is adjusted to the minimum, the projection light of the projection component passes through the lower edge; when the adjustable angle is adjusted to the maximum, the projection light of the projection component passes through the upper edge. The size of the projection opening can be ensured to be the smallest to enhance the aesthetics of the appearance, and the projection light of the projection component at any angle within the adjustable angle will not be blocked, thereby affecting the effect of projection display.

Furthermore, the projection component and the scanning pen body are separate structures. The separate structural design can ensure that the projection component has more flexible and diverse projection options to meet the projection needs of users in more usage scenarios, thereby improving the user experience of users. In addition, the separate arrangement of the projection component and the scanning pen body can also reduce the changes to the original structure of the scanning pen body and reduce the difficulty of the process.

Furthermore, the scanning pen body includes: a display screen for displaying the information to be displayed. The display screen provided by the scanning pen body retains the original display function of the scanning pen body, provides more display options for the user, and thus improves the user experience.

Furthermore, the scanning pen body includes: a voice broadcast component for voice broadcasting the information to be displayed. By adding the voice broadcast function, the user is provided with a visual and auditory dual choice of obtaining the information to be displayed, thereby improving the user's user experience.

Furthermore, the projection assembly is a color projection light engine, which can provide users with a visual experience with richer colors, thereby improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a three-dimensional structure of a scanning pen with a projection function according to an embodiment of the present invention from one viewing angle;

FIG2 is a schematic diagram of the three-dimensional structure of a scanning pen with a projection function in another perspective according to an embodiment of the present invention;

FIG3 is a schematic diagram of the exploded structure of the scanning pen with projection function according to the embodiment shown in FIG1 ;

FIG4 is a schematic diagram of an application scenario of the scanning pen with projection function according to the embodiment of FIG1 ;

FIG5 is a schematic diagram of an application structure of the scanning pen with projection function according to the embodiment shown in FIG1 ;

FIG6 is a schematic diagram of another application structure of the scanning pen with projection function according to the embodiment of FIG1 ;

FIG7 is a block diagram of the scanning pen with projection function according to the embodiment shown in FIG1 ;

FIG8 is a schematic diagram of the structure of a scanning pen with a projection function and an application scenario according to another embodiment of the present invention;

FIG9 is a block diagram of the scanning pen with projection function according to the embodiment shown in FIG8 ;

FIG10 is a schematic diagram of a three-dimensional structure of a projection optical machine of a scanning pen with a projection function according to an embodiment of the present invention from one viewing angle;

FIG11 is a schematic diagram of the three-dimensional structure of the projection optical machine of the scanning pen with projection function in the embodiment shown in FIG10 from another perspective;

12 is a schematic structural diagram of a micro display panel of a projection optical machine of a scanning pen with a projection function according to the embodiment shown in FIG. 11 ;

13 is a schematic diagram of the exploded structure of a projection optical machine of a scanning pen with projection function according to another embodiment of the present invention;

FIG14 is a schematic structural diagram of three micro-display panels of a projection optical machine of a scanning pen with a projection function according to the embodiment shown in FIG13 ;

FIG. 15 is a schematic diagram of the projection principle structure of the scanning pen with projection function according to the embodiment shown in FIG. 13 .

DETAILED DESCRIPTION

As described in the background art, the scanning pen in the prior art still has many limitations in its application, which will be described in detail below.

At present, scanning pens usually have a small size for easy carrying, which limits the size of the display screen of the scanning pen to a certain extent. However, as the scanning pen gradually develops and matures, its functions are constantly increasing and improving, and the information that needs to be displayed on the display screen is also gradually increasing. At present, the size of the scanning pen is small, and the content that can be displayed is limited. Not only can it not meet the increasing display needs, but it is also not convenient for users to observe.

On this basis, the utility model provides a scanning pen with a projection function, which projects and displays the information to be displayed generated by scanning the scanning pen body through a projection component, so that the display content of the scanning pen body is not limited by the size of the traditional display screen of the scanning pen body, thereby improving the user experience. In addition, the display surface and the scanning surface are located on the same side of the scanning pen body, and the user can read after scanning without changing the viewing angle, further improving the user experience.

In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order or relative importance between these entities or operations.

Fig. 1 is a schematic diagram of the three-dimensional structure of a scanning pen with a projection function in one embodiment of the present invention from one viewing angle; Fig. 2 is a schematic diagram of the three-dimensional structure of a scanning pen with a projection function in another viewing angle; Fig. 3 is a schematic diagram of the decomposed structure of the scanning pen with a projection function in the embodiment shown in Fig. 1; Fig. 4 is a schematic diagram of an application scenario of the scanning pen with a projection function in the embodiment shown in Fig. 1; Fig. 5 is a schematic diagram of an application structure of the scanning pen with a projection function in the embodiment shown in Fig. 1; Fig. 6 is a schematic diagram of another application structure of the scanning pen with a projection function in the embodiment shown in Fig. 1; Fig. 7 is a schematic diagram of the block diagram structure of the scanning pen with a projection function in the embodiment shown in Fig. 1; Fig. 8 is a schematic diagram of the structure and an application scenario of the scanning pen with a projection function in another embodiment of the present invention; Fig. 9 is FIG8 is a schematic block diagram of the scanning pen with projection function according to the embodiment; FIG10 is a schematic three-dimensional structure diagram of the projection light machine of the scanning pen with projection function according to one embodiment of the present invention from one viewing angle; FIG11 is a schematic three-dimensional structure diagram of the projection light machine of the scanning pen with projection function according to another viewing angle; FIG12 is a schematic structure diagram of the micro-display panel of the projection light machine of the scanning pen with projection function according to the embodiment of FIG11; FIG13 is a schematic decomposed structure diagram of the projection light machine of the scanning pen with projection function according to another embodiment of the present invention; FIG14 is a schematic structure diagram of the three micro-display panels of the projection light machine of the scanning pen with projection function according to the embodiment of FIG13; FIG15 is a schematic structure diagram of the projection principle of the scanning pen with projection function according to the embodiment of FIG13.

Please refer to Figures 1 and 2, a scanning pen with a projection function includes: a scanning pen body 10, used to scan and obtain text information on a scanning surface 100, and convert the scanned text information to generate information to be displayed; a projection component 20 communicatively connected to the scanning pen body 10, used to project the information to be displayed onto a display surface 200 for display, and the display surface 200 and the scanning surface 100 are located on the same side of the scanning pen body 10.

The information to be displayed generated by scanning the scanning pen body 10 is projected and displayed by the projection component 20, so that the display content of the scanning pen body 10 is not limited by the size of the traditional display screen of the scanning pen body 10, thereby improving the user experience. In addition, the display surface 200 and the scanning surface 100 are located on the same side of the scanning pen body 10, and the user can read after scanning without changing the viewing angle, thereby further improving the user experience.

Please refer to Figure 4. It can be understood that the scanning surface 100 is the main surface carrying text information. For example, in some embodiments, the main body scanned by the scanning pen body 10 is a paper with text information or the outer packaging of the product, and the corresponding scanning surface 100 is the surface of the paper or the surface of the outer packaging. Since the display surface 200 and the scanning surface 100 are located on the same side of the scanning pen body, that is, the projection component 20 can directly project in the direction of the scanning surface 100, in some embodiments, the display surface 200 can be directly the scanning surface 100, that is, the projection component 20 projects the information to be displayed on the surface of the paper or the surface of the outer packaging for display.

It should be noted that, since the projection light of the projection assembly 20 is bright, even if the display surface 200 is directly the scanning surface 100, and the area on the scanning surface 100 for projection display is not completely blank (such as having text or images), the user can still recognize the projected content.

When the user wants to obtain a clearer projection display image, in some embodiments, the user can also find a cleaner display surface 200 and place it on the same side of the scanning surface 100 to display the content, that is, the display surface 200 is not the scanning surface 100. For example, the user can find a blank paper to obtain the display content.

It should be noted that the display surface 200 can be not only a plane, but also a curved surface or two staggered planes, etc. For example, when the scanning subject is the outer packaging surface of the product, and the outer packaging presents a curved surface after covering the product, when the display surface 200 is directly the scanning surface 100, the corresponding display surface 200 is a curved surface. Therefore, as long as it can display the information to be displayed, the specific type of the display surface 200 should not constitute a limitation to the present invention.

Please continue to refer to Figures 1 and 2. It can be understood that the scanning pen body 10, as a product with a scanning function, should be configured with a housing 11 and a scanning mechanism 12. The scanning mechanism 12 is arranged at one end of the housing 11. Since the scanning mechanism 12 needs to directly contact the scanning surface 100 during actual use, for the convenience of description, the end of the housing 11 where the scanning mechanism 12 is arranged is defined as the head end. The scanning mechanism 12 is used to scan and obtain text information on the scanning surface 100 and convert the text information into digital signals.

7 and 9, in some embodiments, the scanning mechanism 12 includes a scanning head 121 and a character recognition module 122, and the scanning head 121 is communicatively connected with the character recognition module 122. The scanning head 121 is used to scan and obtain text information on the scanning surface 100, and the character recognition module 122 is used to recognize the text information and convert the text information into a digital signal.

In some implementations, the technology used by the character recognition module 122 is optical character recognition technology (Optical Character Recognition, optical character recognition).

Please continue to refer to FIG. 7 and FIG. 9 , it can be understood that the scanning pen body 10 as a smart device should also be configured with a processing module 13 that is respectively connected to the scanning mechanism 12 and the projection assembly 20 for communication. The processing module 13 is used to convert the digital signal into information to be displayed, and transmit the information to be displayed to the projection assembly 20 for projection display. In some embodiments, the processing module 13 is disposed in the housing 11.

In some embodiments, the scanning pen body 10 is configured with a translation function, that is, the information to be displayed is text information in the target language, and the corresponding processing module 13 needs to have a built-in translation engine and algorithm that can convert digital signals into text information in the target language.

In some embodiments, the scanning pen body 10 is configured with a magnification function, that is, the scanned text information is projected and magnified through the projection component 20. It is applicable to scenarios such as users with small text information or blurred vision. The corresponding processing module 13 only needs to restore the digital signal to the original text information.

Please continue to refer to FIG. 7 and FIG. 9 . In some embodiments, the scanning pen body 10 may also be configured with a display screen 14. Specifically, the display screen 14 may be disposed on one side of the housing 11, and the display screen 14 is connected to the processing module 13 for communication. The display screen 14 is used to display the information to be displayed. The display screen 14 provided by the scanning pen body 10 retains the original display function of the scanning pen body 10, providing the user with more display options, thereby improving the user experience.

Please continue to refer to Figures 7 and 9. In some embodiments, the scanning pen body 10 can also be configured with a voice broadcast component 16. The voice broadcast component 16 can specifically be a microphone or a speaker. The voice broadcast component 16 is connected to the processing module 13 for voice broadcasting the information to be displayed, that is, the scanning pen body 10 has a "point reading" function. By adding a voice broadcast function, the user is provided with a dual audio-visual option of obtaining the information to be displayed, thereby improving the user's user experience.

In some embodiments, the display screen 14 can display information such as the power level, volume, brightness of the display screen 14, and different functional modes of the scanning pen body 10 in addition to the information to be displayed. The various functions of the scanning pen body 10 mentioned above can be integrated into one or more.

Please continue to refer to FIG. 7 and FIG. 9 . When the scanning pen body 10 integrates multiple functions, it is necessary to adapt the corresponding function switching function when switching between different functions and adjusting some working parameters of the scanning pen body 10 itself. Therefore, in some embodiments, a key 17 electrically connected to the processing module 13 can be set to switch functions and adjust some working parameters of the scanning pen body 10 (such as volume and brightness of the display screen 14) through the key 17.

In some embodiments, information interaction can also be performed directly through the display screen 14, that is, function switching and adjustment of some working parameters of the scanning pen body 10 (such as volume, brightness of the display screen 14) can be performed through the touch screen.

Please continue to refer to Figures 7 and 9. It can be understood that as an electronic product, the scanning pen body 10 should also be configured with a power supply 15 and a circuit board 18, wherein the power supply 15 is at least electrically connected to the scanning mechanism 12 and the processing module 13 respectively, for supplying power to the scanning mechanism 12 and the processing module 13.

Please continue to refer to Figures 7 and 9. In some embodiments, when the scanning pen body 10 is integrated with a display screen 14 and a voice broadcast component 16, the power supply 15 also supplies power to the display screen 14 and the voice broadcast component 16, and the circuit board 18 is used to realize communication connections between different components through logic circuits.

Please continue to refer to Figures 1, 2, 7 and 9 and combine with Figure 3. In some embodiments, the projection assembly 20 is assembled on the scanning pen body 10. By integrating the projection assembly 20 and the scanning pen body 10 into an integral structure, it is convenient for the user to carry. The corresponding power supply 15 is also electrically connected to the projection assembly 20, and the power supply 15 also supplies power to the projection assembly 20. The circuit board 18 realizes the communication connection between the projection assembly 20 and the processing module 13 through the logic circuit. The scanning pen body 10 is correspondingly equipped with a connection interface 19 set on the circuit board 18, and the projection assembly 20 has a connector 2213, and the connection interface 19 is electrically connected to the connector 2213. In some embodiments, the types of the connection interface 19 and the connector 2213 are selected from QSPI (Queued Serial Peripheral Interface), SPI (Serial Peripheral Interface), MIPI (Mobile Industry Processor Interface) or LVDS (Low Voltage Differential Signaling).

It can be understood that in order to enable the projection assembly 20 to have a better projection effect, when using the scanning pen body 10, the projection assembly 20 needs to be in a higher position. Therefore, the projection assembly 20 can be set on the end of the scanning pen body 10 away from the scanning mechanism 12. For the sake of convenience, the end of the scanning pen body 10 away from the scanning mechanism 12 is defined as the tail end.

Please continue to refer to FIG. 3 . In some embodiments, the housing 11 includes an upper housing 111 and a lower housing 112. The upper housing 111 and the lower housing 112 are detachably connected. There is a receiving cavity (not shown) between the upper housing 111 and the lower housing 112. The power supply 15 and the circuit board 18 are disposed in the receiving cavity between the upper housing 111 and the lower housing 112. A projection opening 1110 is provided at the rear end of the upper housing 111 corresponding to a preset position of the projection assembly 20. The projection light of the projection assembly 20 passes through the projection opening 1110.

In some embodiments, the housing 11 is further provided with a transparent cover plate (not shown). The transparent cover plate is fixedly disposed at the projection opening 1110, and the edge profile of the transparent cover plate is adapted to the edge profile of the projection opening 1110. The transparent cover plate can isolate the projection assembly 20 from the external environment to prevent the external environment from interfering with the projection assembly 20. In some embodiments, the transparent cover plate is made of glass or highly transparent plastic.

Please refer to FIG. 5 . In some embodiments, the projection assembly 20 is fixedly mounted on the scanning pen body 10 . There is a fixed angle between the projection direction X of the projection assembly 20 and the extension direction Y of the scanning pen body 10 . The range of the fixed angle is 30° to 60°.

Please continue to refer to FIG. 5. In some embodiments, along the extension direction Y of the scanning pen body 10, the projection opening 1110 has an upper edge and a lower edge that are opposite to each other, and the projection light of the projection assembly 20 passes through the upper edge and the lower edge. By associating the projection opening 1110 with the projection light of the projection assembly 20, the size of the projection opening 1110 can be minimized to enhance the aesthetics of the appearance, and the projection light of the projection assembly 20 will not be blocked, thereby affecting the effect of the projection display.

Please refer to FIG6 . In some embodiments, the projection assembly 20 is rotatably mounted on the scanning pen body 10. There is an adjustable angle between the projection direction X of the projection assembly 20 and the extension direction Y of the scanning pen body 10. The adjustable angle ranges from 30° to 60°. It is understandable that in actual use, different users have different holding habits when using the scanning pen body 10. The angle between the scanning pen body 10 and the scanning surface 100 will be different to a certain extent. The angle of the projection assembly 20 relative to the scanning pen body 10 is adjustable. The projection angle of the projection assembly 20 can be adjusted according to the holding habits of different users to meet the use needs of different users.

Please continue to refer to FIG. 6. In some embodiments, when the adjustable angle is adjusted to the minimum, the projection light of the projection assembly 20 passes through the lower edge. For example, when the adjustable angle between the projection direction X of the projection assembly 20 and the extension direction Y of the scanning pen body 10 is 30°, the projection light of the projection assembly 20 passes through the lower edge. When the adjustable angle is adjusted to the maximum, the projection light of the projection assembly 20 passes through the upper edge. For example, when the adjustable angle between the projection direction X of the projection assembly 20 and the extension direction Y of the scanning pen body 10 is 60°, the projection light of the projection assembly 20 passes through the upper edge. By associating the projection opening 1110 with the projection light of the projection assembly 20, it is possible to ensure that the size of the projection opening 1110 is minimized to improve the aesthetics of the appearance, and the projection light of the projection assembly 20 at any angle within the adjustable angle will not be blocked, thereby affecting the effect of projection display.

It is understandable that when the projection assembly 20 is rotatably assembled on the scanning pen body 10, the scanning pen body 10 should also be configured with a corresponding rotating component (not shown), and the projection assembly 20 is fixedly connected to the rotating component. When adjusting the projection angle of the projection assembly 20, it is actually necessary to operate the rotating component. In some embodiments, the rotating component is a purely mechanical structure, and the rotating component can be configured with a handle (such as a knob) externally mounted on the scanning pen body 10. The user manipulates the handle by force to adjust the projection angle of the projection assembly 20. In some embodiments, the rotating component can also be configured as an electric structure, and the rotating component can be configured with an electric button externally mounted on the scanning pen body 10. The user presses the electric button to adjust the projection angle of the projection assembly 20. In some embodiments, the control of the electric rotating component can also be completed by interactively interacting with the display screen 14, that is, the adjustment of the projection angle of the projection assembly 20 is completed by touching the screen.

Please refer to FIG8 . In some embodiments, the projection assembly 20 and the scanning pen body 10 are separate structures. The separate structural design can ensure that the projection assembly 20 has more flexible and diverse projection options to meet the projection needs of users in more usage scenarios, thereby improving the user experience. In addition, the separate arrangement of the projection assembly 20 and the scanning pen body 10 can also reduce the changes to the original structure of the scanning pen body 10 and reduce the difficulty of the process.

It is understandable that, since the projection assembly 20 is not integrated in the scanning pen body 10, the power supply 15 correspondingly arranged in the scanning pen body 10 will no longer supply power to the projection assembly 20, and the projection assembly 20 needs to be additionally equipped with a power supply 15 to realize power supply. In addition, a wireless communication module needs to be configured for communication connection between the projection assembly 20 and the scanning pen body 10.

9, in some embodiments, the wireless communication module includes: a first sub-communication module 41 electrically connected to the scanning pen body 10; and a second sub-communication module 42 electrically connected to the projection assembly 20. In some embodiments, the wireless communication module can use Bluetooth wireless communication technology.

Please continue to refer to FIG. 8 . In some embodiments, a projection bracket 30 is further configured. The projection assembly 20 is assembled on the projection bracket 30 . The projection bracket 30 can provide projection support for the projection assembly 20 .

In some embodiments, the projection bracket 30 can be configured as a structure with adjustable height to meet different projection requirements of users. It is understandable that when the projection bracket 30 is adjusted in height, the projection magnification range of the projection assembly 20 is different. In order to ensure that the projection assembly 20 can have a clear projection picture at each projection height, the projection assembly 20 can also be provided with a focus adjustment function.

In some embodiments, the projection assembly 20 may be a Micro LED projection light engine.

Please refer to Figures 10 to 12. In some embodiments, the projection assembly 20 is a monochrome projection optical machine. The projection assembly 20 includes a micro display panel 221 and a lens assembly 222. The micro display panel 221 is fixedly connected to the lens assembly 222, and the light emitting surface of the micro display panel 221 faces the lens assembly 222. The light emitted by the micro display panel 221 passes through the lens assembly 222 and then is emitted outward. The lens assembly 222 can collimate the light emitted by the micro display panel 221. Specifically, the micro display panel 221 further includes a display chip 2210, a display circuit board 2211, a reinforcement plate 2212 and a connector 2213. The reinforcement plate 2212 includes a first reinforcement plate 2212a and a second reinforcement plate 2212b. The display chip 2210 is arranged on the first reinforcement plate 2212a, and the connector 2213 is arranged on the second reinforcement plate 2212b. One end of the display circuit board 2211 is electrically connected to the display chip 2210, and the other end is electrically connected to the connector 2213. The connector 2213 is suitable for connecting to an external power supply or signal source to supply power to the display chip 2210 or input a display signal.

In some embodiments, the display circuit board 2211 is a flexible circuit board 18, so that the angle between the first reinforcing plate 2212a and the second reinforcing plate 2212b can be adjusted according to the needs of use.

In some embodiments, the display chip 2210 includes a Micro LED array, and the area of the light-emitting region is between 0.5 inches and 3 inches.

In some embodiments, the light emitting area size of the display chip 2210 is 2.64 mm×2.02 mm.

In some embodiments, the micro display panel 221 may be provided with a shielding cover 2214, and the shielding cover 2214 and the connector 2213 are respectively disposed on opposite sides of the second reinforcing plate 2212b. The shielding cover 2214 can shield the electronic components of the connector 2213, can protect the electronic components of the connector 2213, and reduce the interference of the external environment on the electronic components of the connector 2213.

Please refer to Figures 13 to 15. In some embodiments, the projection assembly 20 is a color projection light machine, which can provide users with a more colorful visual experience, thereby improving the user experience. The projection assembly 20 includes three micro display panels (i.e., a first micro display panel 231a, a second micro display panel 231b, and a third micro display panel 231c), a lens assembly 232, and a light combining prism 233. Each of the micro-display panels includes: a display circuit board (i.e., a first display circuit board 2312a, a second display circuit board 2312b, and a third display circuit board 2312c corresponding to the first micro-display panel 231a, the second micro-display panel 231b, and the third micro-display panel 231c, respectively); a display chip electrically connected to the display circuit board (i.e., a first display chip 2311a, a second display chip 2311b, and a third display chip 2311c corresponding to the first display circuit board 2312a, the second display circuit board 2312b, and the third display circuit board 2312c, respectively), and the display chip corresponds to the lens assembly; a connector electrically connected to the display circuit board (i.e., a first connector 2314a, a second connector 2314b, and a third connector 2314c corresponding to the first display circuit board 2312a, the second display circuit board 2312b, and the third display circuit board 2312c, respectively).

The number of light incident surfaces of the light-combining prism 233 is three (i.e., a first light incident surface 2331a, a second light incident surface 2331b, and a third light incident surface 2331c). The first light incident surface 2331a corresponds to the first micro display panel 231a, and the light emitted by the first micro display panel 231a can enter the interior of the light-combining prism 233 through the first light incident surface 2331a. The second light incident surface 2331b corresponds to the second micro display panel 231b, and the light emitted by the second micro display panel 231b can enter the interior of the light-combining prism 233 through the second light incident surface 2331b. The third light incident surface 2331c corresponds to the third micro display panel 231c, and the light emitted by the third micro display panel 231c can enter the interior of the light-combining prism 233 through the third light incident surface 2331c.

In some embodiments, the first micro display panel 231a emits red light, the second micro display panel 231b emits green light, and the third micro display panel 231c emits blue light. The light emitted by the three micro display panels enters the light combining prism 233 and converges before being emitted through the light emitting surface.

Please continue to refer to Figures 13 to 15. In some embodiments, the light combining prism 233 includes a mirror body 2332, a first semi-reflective semi-transparent membrane 2333, and a second semi-reflective semi-transparent membrane 2334. The first semi-reflective semi-transparent membrane 2333 and the second semi-reflective semi-transparent membrane 2334 are interlaced on the mirror body 2332. After the light emitted by the first micro display panel 231a enters the light combining prism 233 through the first light incident surface 2331a, it passes through the first semi-reflective semi-transparent membrane 2333 and the second semi-reflective semi-transparent membrane 2334 and then exits through the light emitting surface. After the light emitted by the second micro display panel 231b enters the light combining prism 233 through the second light incident surface 2331b, a part of the light is first reflected by the first semi-reflective semi-transparent membrane 2333, then passes through the second semi-reflective semi-transparent membrane 2334, and is emitted through the light emitting surface; another part of the light first passes through the second semi-reflective semi-transparent membrane 2334, then reflects by the first semi-reflective semi-transparent membrane 2333, and is emitted through the light emitting surface. After the light emitted by the third micro display panel 231c enters the light combining prism 233 through the third light incident surface 2331c, a part of the light is first reflected by the second semi-reflective semi-transparent membrane 2334, then passes through the first semi-reflective semi-transparent membrane 2333, and is emitted through the light emitting surface; another part of the light first passes through the second semi-reflective semi-transparent membrane 2334, then reflects by the first semi-reflective semi-transparent membrane 2333, and is emitted through the light emitting surface.

In some embodiments, the shape of the light-combining prism 233 is a tetrahedron, such as a cuboid or a cube, etc. In some embodiments, the light-combining prism 233 is formed by splicing four sub-prisms with triangular cross-sections, and sub-semi-reflective and semi-transparent membranes are attached to the preset surfaces of the four sub-prisms. When the four sub-prisms are spliced together, the sub-semi-reflective and semi-transparent membranes are connected to each other to form a first semi-reflective and semi-transparent membrane 2333 and a second semi-reflective and semi-transparent membrane 2334.

In some embodiments, the first micro-display panel 231a is provided with a first display chip 2311a, one end of which is adhered to the first light incident surface 2331a of the light-combining prism 233, and the first display chip 2311a faces the first light incident surface 2331a, and the light emitted by the first display chip 2311a can pass through the first light incident surface 2331a and enter the interior of the light-combining prism 233; the second micro-display panel 231b is provided with a second display chip 2311b, one end of which is adhered to the second light incident surface 2331b of the light-combining prism 233, and the second display chip 2311a faces the first light incident surface 2331a, and the light emitted by the first display chip 2311a can pass through the first light incident surface 2331a and enter the interior of the light-combining prism 233. The third micro-display panel 231c is provided with a third display chip 2311c, one end of which is attached to the third light incident surface 2331c of the light-combining prism 233, and the third display chip 2311c is facing the third light incident surface 2331c, and the light emitted by the third display chip 2311c can pass through the third light incident surface 2331c to enter the light-combining prism 233.

Please continue to refer to Figures 13 and 14. In some embodiments, the first display circuit board 2312a of the first micro display panel 231a, the second display circuit board 2312b of the second micro display panel 231b, and the third display circuit board 2312c of the third micro display panel 231c are all flexible circuit boards. The first display circuit boards 2312a are folded with each other, and one end of the first micro display panel 231a provided with the first display chip 2311a and one end provided with the first connector 2314a are stacked with each other. The shape of the second display circuit board 2312b is roughly L-shaped, and one end of the second micro display panel 231b provided with the second display chip 2311b is located outside the second light incident surface 2331b, and one end of the second micro display panel 231b provided with the second connector 2314b is located outside the first light incident surface 2331a, and is stacked with one end of the first micro display panel 231a provided with the first connector 2314a. The third display circuit board 2312c is substantially L-shaped, and one end of the third micro display panel 231c provided with the third display chip 2311c is located outside the third light incident surface 2331c, and one end of the third micro display panel 231c provided with the third connector 2314c is located outside the first light incident surface 2331a, and is stacked with one end of the first micro display panel 231a provided with the first connector 2314a. By stacking the ends of the three micro display panels provided with connectors, the volume of the optical machine can be reduced.

Please continue to refer to FIG. 13 and FIG. 14. In some embodiments, the first connector 2314a includes a first sub-connector 2314a1, a second sub-connector 2314a2 and a third sub-connector 2314a3. The first sub-connector 2314a1 is arranged on the side of the reinforcing plate 2313a close to the first display chip 2311a, and the second sub-connector 2314a2 and the third sub-connector 2314a3 are arranged on the side of the reinforcing plate 2313a away from the first display chip 2311a. The second sub-connector 2314a2 is snap-fitted and connected with the second connector 2314b, and the third sub-connector 2314a3 is snap-fitted and connected with the third connector 2314c. The first sub-connector 2314a1 is suitable for connecting with the outside world. The external electrical signal can simultaneously supply power to the three micro display panels through the first sub-connector 2314a1, which can simplify the connection structure between the optical machine and the outside world.

The micro display panel 221 , the first micro display panel 231 a , the second micro display panel 231 b , and the third micro display panel 231 c mentioned above have very small volumes, and the length and width dimensions are between 500 μm and 50,000 μm.

The light emitting regions of the micro display panel 221 , the first micro display panel 231 a , the second micro display panel 231 b , and the third micro display panel 231 c are very small, such as 1 mm×1 mm, 2.64 mm×2.02 mm, 3 mm×5 mm, etc.

The light-emitting areas of the micro display panel 221, the first micro display panel 231a, the second micro display panel 231b, and the third micro display panel 231c include a plurality of micro LED pixels arranged in an array, and the specific pixel arrangement can be one of 320×240, 640×480, 1600×1200, 1920×1080, and 2560×1440. The size of a single micro LED pixel is between 100nm and 100 microns. In some embodiments, the size of a single micro LED pixel is between 150nm and 15 microns. In some embodiments, the size of a single micro LED pixel can also be less than 10 microns.

A driving backplane is provided on the back of the micro-LED pixel array, and the driving backplane is electrically connected to the micro-LEDs in the micro-LED pixel array. The driving backplane can obtain signals such as image data from the outside world, and can control the corresponding micro-LEDs to emit light or not. The driving backplane is a TFT (Thin Film Transistor) board or an IC (Integrated Circuit) board. For example, the driving backplanes of the micro-display panel 221, the first micro-display panel 231a, the second micro-display panel 231b, and the third micro-display panel 231c are integrated with a frame buffer, a column driving circuit, and a row driving circuit. The frame buffer includes a first pixel storage area, and the micro-LED pixel array includes a second pixel storage area. A complete frame of pixel grayscale data from the outside world can first enter the first pixel storage area of the frame buffer, and the column driving circuit can load the pixel grayscale data in the first pixel storage area of the frame buffer to the second pixel storage area of the micro-LED pixel array. The row driving circuit can scan the pixel grayscale data in the second pixel storage area and generate a pulse modulation signal to achieve the purpose of displaying different grayscales. When driving multiple micro LED pixels in a micro LED pixel array, either a single pixel can be driven independently or multiple pixel units can be driven independently. The specific driving method should not constitute a limitation to the present application.

Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims (19)

1. A scanning pen with projection function, characterized by comprising: The scanning pen body is used to scan and obtain text information on the scanning surface, and convert the scanned text information to generate information to be displayed; The projection component is communicatively connected to the scanning pen body, and is used to project the information to be displayed onto a display surface for display, and the display surface and the scanning surface are located on the same side of the scanning pen body. 2. The scanning pen with projection function as claimed in claim 1, characterized in that the projection component is assembled on the scanning pen body. 3. The scanning pen with projection function as described in claim 2 is characterized in that the projection component is fixedly assembled on the scanning pen body, and there is a fixed angle between the projection direction of the projection component and the extension direction of the scanning pen body, and the range of the fixed angle is: 30°~60°. 4. The scanning pen with projection function as described in claim 3 is characterized in that the scanning pen body has a projection opening, and the projection light of the projection component passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has relative upper and lower edges, and the projection light of the projection component passes through the upper and lower edges. 5. The scanning pen with projection function as described in claim 2 is characterized in that the projection component is rotatably assembled on the scanning pen body, and there is an adjustable angle between the projection direction of the projection component and the extension direction of the scanning pen body, and the range of the adjustable angle is: 30°~60°. 6. The scanning pen with projection function as described in claim 5 is characterized in that the scanning pen body has a projection opening, and the projection light of the projection component passes through the projection opening; wherein, along the extension direction of the scanning pen body, the projection opening has relative upper and lower edges; when the adjustable angle is adjusted to the minimum, the projection light of the projection component passes through the lower edge; when the adjustable angle is adjusted to the maximum, the projection light of the projection component passes through the upper edge. 7. The scanning pen with projection function as claimed in claim 1, characterized in that the projection component and the scanning pen body are separate structures. 8. The scanning pen with projection function as claimed in claim 7, characterized in that it also includes: a wireless communication module for communication connection between the projection component and the scanning pen body. 9. The scanning pen with projection function as claimed in claim 8, characterized in that the wireless communication module comprises: a first sub-communication module electrically connected to the scanning pen body; and a second sub-communication module electrically connected to the projection component. 10. The scanning pen with projection function as claimed in claim 7, further comprising: a projection bracket, wherein the projection component is assembled on the projection bracket. 11. The scanning pen with projection function as described in claim 1 is characterized in that the scanning pen body comprises: a scanning mechanism, used to scan and obtain text information on the scanning surface, and convert the text information into a digital signal; a processing module communicatively connected to the scanning mechanism and the projection component respectively, used to convert the digital signal into the information to be displayed, and transmit the information to be displayed to the projection component for projection display. 12. The scanning pen with projection function as claimed in claim 11, characterized in that the scanning mechanism comprises: a scanning head for scanning and acquiring text information on the scanning surface; and a character recognition module communicatively connected to the scanning head for recognizing the text information and converting the text information into the digital signal. 13. The scanning pen with projection function as claimed in claim 1, characterized in that the information to be displayed includes: original text information or text information in a target language. 14. The scanning pen with projection function as claimed in claim 1, characterized in that the scanning pen body comprises: a display screen for displaying the information to be displayed. 15. The scanning pen with projection function as claimed in claim 1, characterized in that the scanning pen body comprises: a voice broadcast component for voice broadcasting the information to be displayed. 16. The scanning pen with projection function as claimed in claim 1, characterized in that the projection component is a monochrome projection light engine. 17. A scanning pen with projection function as described in claim 16, characterized in that the projection component includes: a micro display panel; a lens component fixedly connected to the micro display panel; wherein the micro display panel includes: a display circuit board; a display chip electrically connected to the display circuit board, the display chip corresponds to the lens component; a connector electrically connected to the circuit board. 18. The scanning pen with projection function as claimed in claim 1, characterized in that the projection component is a color projection light engine. 19. A scanning pen with projection function as described in claim 18, characterized in that the projection component includes: 3 micro display panels; a light-combining prism, the light-combining prism has 3 light incident surfaces and 1 light exiting surface, and the 3 micro display panels respectively correspond to the 3 light incident surfaces of the light-combining prism; a lens assembly, and the lens assembly corresponds to the light exiting surface of the light-combining prism; wherein each of the micro display panels includes: a display circuit board; a display chip electrically connected to the display circuit board, and the display chip corresponds to the lens assembly; a connector electrically connected to the circuit board.