Back auxiliary screen used for mobile phone camera shooting combination

Abstract

The invention provides a back auxiliary screen for mobile phone camera shooting combination, and relates to the technical field of mobile phone camera shooting. The back auxiliary screen used for mobile phone camera shooting combination comprises a face shell and a bottom cover, a clamping base is fixedly connected to the edge of the top of the bottom cover, a clamping block is fixedly connected to the inner wall of the face shell, the face shell and the bottom cover are fixed together through the clamping base and the clamping block, a screen assembly is fixedly connected to the top of the face shell, and the screen assembly is fixedly connected to the bottom cover. The screen assembly comprises a display screen and a touch screen, a PCBA (printed circuit board assembly) is arranged in the face shell, jacks are formed in the edge of the PCBA, fixing screws are arranged in the jacks, and the PCBA is fixedly connected with the face shell through the fixing screws. The back auxiliary screen is connected to the mobile phone through the USB connecting line, so that a user can preview and view conveniently when using a rear camera to take a picture, meanwhile, mirroring and rotation of an image can be controlled through the screen assembly, and the preview effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone camera, and in particular to a rear sub-screen for combining mobile phone camera. Background Art

[0002] Taking photos is also called photography. It generally refers to the process of exposing photosensitive media through light reflected by an object. Usually, a silver-salt photosensitive material (film, roll film, dry plate, wet plate, etc.) camera or a digital (CCD, CMOS, etc.) camera is used. With the popularity of smart phones, it has become more popular to use mobile phones to record the bits and pieces of life. It is very convenient to use mobile phones to take photos while traveling.

[0003] Currently, the shooting effect of the camera on the back of the mobile phone is much better than that of the front camera, but when using the camera on the back of the mobile phone, it is impossible to preview the shooting effect. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a rear sub-screen for combining a mobile phone camera and a camera, which solves the problem that the existing mobile phone cannot preview the shooting effect when shooting with the rear camera.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a back sub-screen for mobile phone camera combination, comprising a face shell and a bottom cover, a card holder is fixedly connected to the top edge of the bottom cover, a card block is fixedly connected to the inner wall of the face shell, and the face shell and the bottom cover are fixed together through the card holder and the card block, a screen assembly is fixedly connected to the top of the face shell, and the screen assembly is a display screen and a touch screen, a PCBA board is arranged inside the face shell, a jack is arranged at the edge of the PCBA board, a fixing screw is arranged inside the jack, the PCBA board is fixedly connected to the face shell through the fixing screw, a typec interface is arranged at the top right edge of the PCBA board, a toggle switch is arranged at the top front edge of the PCBA board, and the PCBA board is connected to the screen assembly through a wire.

[0008] Preferably, a toggle groove is provided at the top front edge of the face shell, and the toggle switch is located inside the toggle groove.

[0009] Preferably, a slot is provided on the right side wall of the face shell, and the type c interface is located inside the slot.

[0010] Preferably, a screen fixing adhesive is provided between the PCBA board and the screen assembly, and a screen cable anti-loosening sticker is provided on the top of the PCBA board.

[0011] Preferably, a mounting groove is provided on the top of the bottom cover, and a magnet is clamped inside the mounting groove.

[0012] Preferably, the number of the jacks and the number of the fixing screws are both four, and they are evenly distributed at the four corners of the PCBA board.

[0013] A method for using a rear secondary screen combined with a mobile phone camera comprises the following specific steps:

[0014] S1. The user first connects the device to the mobile phone using a USB cable, then turns on the device by flipping the switch, and then fixes the device to the back of the mobile phone through the attraction of the magnet;

[0015] S2. After being turned on, the device and the mobile phone can interact automatically, and the device can automatically identify the resolution of the mobile phone's photo.

[0016] S3. When a user takes a photo with a mobile phone, the device automatically obtains the mobile phone image and the resolution of the screen assembly, and crops the image based on the resolution of the screen assembly.

[0017] S4, the cropped image is displayed on a screen assembly smaller than 4.5 inches;

[0018] S5. The user can touch the screen to mirror or rotate the graphics.

[0019] (III) Beneficial effects

[0020] The present invention provides a rear sub-screen for combining a mobile phone camera and a mobile phone, which has the following beneficial effects:

[0021] 1. The present invention connects the rear secondary screen to the mobile phone by using a USB cable, so that the user can preview when taking pictures with the rear camera, which is convenient for framing. At the same time, the mirroring and rotation of the image can be controlled through the screen assembly, further improving the preview effect.

[0022] 2. The present invention can also realize same-screen image cropping according to the different display resolutions of different mobile phones, solve the problem of simultaneous display of images of mobile phones of different sizes and secondary screens below 4.5 inches, and achieve the best preview effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the external structure of a rear secondary screen for combining a mobile phone camera and a mobile phone according to the present invention;

[0024] FIG2 is an exploded view of a rear sub-screen for combining a mobile phone camera and a mobile phone according to the present invention;

[0025] FIG3 is a top view of a rear secondary screen for combining a mobile phone with a camera proposed by the present invention with the bottom cover removed;

[0026] FIG4 is a top view of a rear secondary screen for combining a mobile phone camera with a camera according to the present invention after removing the cover;

[0027] FIG5 is a flowchart of the use of a rear sub-screen for combining a mobile phone camera according to the present invention.

[0028] Among them, 1. front shell; 2. bottom cover; 3. card holder; 4. card block; 5. installation slot; 6. magnet; 7. fixing screws; 8. PCBA board; 9. jack; 10. toggle switch; 11. screen cable anti-loosening sticker; 12. type c interface; 13. toggle slot; 14. slot; 15. screen assembly; 16. screen fixing adhesive. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] As shown in Fig. 1-5, an embodiment of the present invention provides a rear sub-screen for mobile phone camera combination, including a face shell 1 and a bottom cover 2, a card holder 3 is fixedly connected to the top edge of the bottom cover 2, a card block 4 is fixedly connected to the inner wall of the face shell 1, and the face shell 1 and the bottom cover 2 are fixed together through the card holder 3 and the card block 4, a screen assembly 15 is fixedly connected to the top of the face shell 1, and the screen assembly 15 is a display screen and a touch screen, and the user can take pictures, mirror and rotate by touch, further improving the preview effect, and a PCBA board 8 is arranged inside the face shell 1, and the edge position of the PCBA board 8 is arranged There is a jack 9, and the setting of the jack 9 makes it convenient to fix the PCBA board 8 with the fixing screws 7. The inside of the jack 9 is provided with the fixing screws 7. The PCBA board 8 is fixedly connected to the face shell 1 through the fixing screws 7. A typec interface 12 is provided at the top right edge of the PCBA board 8. The setting of the typec interface 12 makes it convenient for the user to connect the device to the mobile phone using a USB cable. A toggle switch 10 is provided at the top front edge of the PCBA board 8. The setting of the toggle switch 10 is mainly used to control the switch of the device. The PCBA board 8 is connected to the screen assembly 15 through a wire.

[0032] A toggle slot 13 is provided at the top front edge of the face shell 1, and the toggle switch 10 is located inside the toggle slot 13. A slot 14 is provided on the right side wall of the face shell 1, and the typec interface 12 is located inside the slot 14. A screen fixing adhesive 16 is provided between the PCBA board 8 and the screen assembly 15. The fixing adhesive 16 has the function of protecting the screen. It can play a buffering effect when the screen assembly 15 is hit. At the same time, it can also play a sealing role to prevent dust from entering. A screen cable anti-loosening sticker 11 is provided on the top of the PCBA board 8, and an installation slot 5 is provided on the top of the bottom cover 2. A magnet 6 is clamped inside the installation slot 5. The setting of the magnet 6 makes it easy to adsorb the device on the back of the mobile phone. There are four jacks 9 and four fixing screws 7, and they are evenly distributed at the four corners of the PCBA board 8.

[0033] A method for using a rear secondary screen combined with a mobile phone camera comprises the following specific steps:

[0034] S1. The user first connects the device to the mobile phone using a USB cable, then turns on the device by toggling the switch 10, and then fixes the device to the back of the mobile phone by the suction force of the magnet (6), so that the user can preview and shoot when taking photos, providing the user with a simple and stable operation and providing convenience and stability;

[0035] S2. After being turned on, the device and the mobile phone can interact automatically, and the device can automatically identify the resolution of the mobile phone's photo.

[0036] S3. When the user takes a photo with a mobile phone, the device automatically obtains the mobile phone image and the resolution of the screen assembly 15. The image is cropped based on the resolution of the screen assembly 15. The length and width of the mobile phone image obtained by the device are H and W respectively. At the same time, the length and width of the device display resolution are H1 and W1 respectively. We can obtain the best conversion ratio through the following formula:

[0037] Method 1: T1=W1 / W, so we can get the length and width of the cropped image: H2=H*T1 W2=W*T1. After getting H2 and W2, we first compress the image according to the ratio of T1, that is, the image width is compressed from W to W1. We use the same ratio of T1 to compress the length, and the obtained image length is H2. If H2>=H1,

[0038] We start from the middle of H2, cut off (H2-H1) / 2 of the display content from the top of H2, and cut off (H2-H1) / 2 of the display content from the bottom of H2.

[0039] If H2

[0040] Method 2: We can first calculate T1=H1 / H, T2=W1 / W, and then choose whether to crop by length or width by judging the values ​​of T1 and T2. The cropping method is to calculate the length and width according to method 1, and crop up and down or left and right based on the center position.

[0041] This way, the phone display content can be copied to the device display 1:1 without black edges;

[0042] Full-screen display technology for mobile phone selfie sub-screen.

[0043] S4, the cropped image is displayed on the screen assembly 15 of less than 4.5 inches;

[0044] S5. The user can touch the screen to mirror or rotate the graphics.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.​

Claims

1. A rear secondary screen for a mobile phone camera, comprising a front cover (1) and a bottom cover (2), characterized in that: A card holder (3) is fixedly connected to the top edge of the bottom cover (2), a card block (4) is fixedly connected to the inner wall of the face shell (1), and the face shell (1) and the bottom cover (2) are fixed together via the card holder (3) and the card block (4), a screen assembly (15) is fixedly connected to the top of the face shell (1), and the screen assembly (15) is a display screen and a touch screen, a PCBA board (8) is arranged inside the face shell (1), a jack (9) is arranged at the edge of the PCBA board (8), a fixing screw (7) is arranged inside the jack (9), the PCBA board (8) is fixedly connected to the face shell (1) via the fixing screw (7), a typec interface (12) is arranged at the top right edge of the PCBA board (8), a toggle switch (10) is arranged at the top front edge of the PCBA board (8), and the PCBA board (8) is connected to the screen assembly (15) via a wire.

2. The rear sub-screen for combining a mobile phone camera and a mobile phone according to claim 1, characterized in that: A toggle slot (13) is provided at the top front edge of the face shell (1), and the toggle switch (10) is located inside the toggle slot (13).

3. The rear sub-screen for combining a mobile phone camera with a camera according to claim 2, characterized in that: A slot (14) is provided on the right side wall of the face shell (1), and the Type C interface (12) is located inside the slot (14).

4. The rear sub-screen for combining mobile phone camera and camera according to claim 3, characterized in that: A screen fixing adhesive (16) is provided between the PCBA board (8) and the screen assembly (15), and a screen cable anti-loosening sticker (11) is provided on the top of the PCBA board (8).

5. The rear sub-screen for combining camera and mobile phone according to claim 4, characterized in that: A mounting groove (5) is provided on the top of the bottom cover (2), and a magnet (6) is clamped inside the mounting groove (5).

6. The rear sub-screen for combining camera and mobile phone according to claim 5, characterized in that: The number of the jacks (9) and the fixing screws (7) is four, and they are evenly distributed at the four corners of the PCBA board (8).

7. A method for using a rear sub-screen for a mobile phone camera combination, based on the rear sub-screen for a mobile phone camera combination according to claim 6, characterized in that: The specific steps include: S1. The user first connects the device to the mobile phone using a USB cable, then turns on the device by flipping the switch (10), and then fixes the device to the back of the mobile phone by the suction force of the magnet (6); S2. After being turned on, the device and the mobile phone can interact automatically, and the device can automatically identify the resolution of the mobile phone's photo. S3. When the user uses a mobile phone to take a photo, the device automatically obtains the mobile phone image and the resolution of the screen assembly (15), and crops the image in combination with the resolution of the screen assembly (15); S4, the cropped image is displayed on a screen assembly (15) of less than 4.5 inches; S5. The user can touch the screen to mirror or rotate the graphics.

Images