Display screen light sensor arrangement structure

Abstract

The utility model discloses a display screen light sensor arrangement structure which comprises a display screen rear shell (1), a glass cover plate (2) is arranged on the display screen rear shell (1), a backlight rear shell (3) is arranged in the display screen rear shell (1), a light sensor (4) is arranged on the side, close to the display screen rear shell (1), of the glass cover plate (2), and a flexible PCB (5) is arranged on the light sensor (4). The light sensor (4) is bonded to the proper position of the lower portion of the glass cover plate (2) through glue, the foam tape is bonded between the flexible PCB (5) and the glass cover plate (2), on one hand, the buffering and fixing effect is achieved, on the other hand, surrounding light can be effectively shielded, performance is improved, and meanwhile the light sensor (4) is directly bonded to the glass cover plate (2), light loss can be reduced, and the service life of the light sensor is prolonged. The brightness control is more accurate, the light windowing size is small, the occupied frame space is small, and the narrow frame requirement can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screens, and specifically relates to a display screen light sensor arrangement structure. Background Art

[0002] With the development of science and technology, electronic devices such as mobile phones and computers are becoming more and more popular, and are usually equipped with light sensors to achieve automatic brightness adjustment of electronic devices to avoid accidental touch input, facilitate user operation, and save power.

[0003] The patent number is 202220709526.7, and a public specification published on October 21, 2022 discloses a display device with a fingerprint recognition function, including: a touch screen, a plastic middle frame, a liquid crystal display, a light sensor, a camera, a fingerprint recognition button, a spring-pressed sheet, a middle frame back cover, a fixed bracket, a fixed tray, a mainboard, a speaker, and a bottom cover; a fingerprint recognition module is also provided on the mainboard; the mainboard is electrically connected to the touch screen, the liquid crystal display, the light sensor, the camera, the fingerprint recognition button, and the speaker. The utility model adopts a fingerprint recognition module to solve the problems caused by forgetting and leaking passwords; by adding a layer of tempered glass outside the touch screen and adding an oleophobic layer on the tempered glass, it is convenient to prevent oil stains from affecting the touch effect when the display screen is used on a cooking machine, and the tempered glass can protect the touch screen from damage when used on a storage cabinet; the light sensor is used to automatically adjust the brightness, eliminating the problem of multiple brightness adjustments due to changes in ambient light.

[0004] In the above-mentioned prior art, the traditional light sensor is directly installed on the PCB main board of the display screen. Due to its own structural limitations, the PCB main board is far away from the glass cover plate, and a light guide column needs to be added. The light guide column is installed in the bracket, and the light sensor and the glass cover plate are connected through the light guide column. This installation method occupies the frame space, the frame size is increased, and the narrow frame requirement cannot be met. In addition, there is a certain loss of light passing through the light guide column, which affects the effect. Utility Model Content

[0005] The utility model aims to provide a display screen light sensor arrangement structure which reduces light loss.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a display screen light sensor arrangement structure, including a display screen back shell, a glass cover plate is provided on the display screen back shell, a backlight back shell is provided inside the display screen back shell, the light sensor is arranged on a side of the glass cover plate close to the display screen back shell, a soft PCB board is provided on the light sensor, the soft PCB board is located between the display screen back shell and the backlight back shell, and an adhesive is provided between the soft PCB board and the glass cover plate.

[0007] The light sensor is bonded to the glass cover plate by glue.

[0008] The adhesive components are distributed on both sides of the light sensor.

[0009] The adhesive member is a foam tape.

[0010] The side of the soft PCB away from the light sensor is provided with components and a socket.

[0011] The components are arranged in a unidirectional linear manner on the flexible PCB.

[0012] The sides of the display screen rear shell and the backlight rear shell are provided with embedding grooves for placing the soft PCB board.

[0013] A main PCB board connected to the soft PCB board is arranged in the rear shell of the display screen.

[0014] The backlight rear shell and the display screen rear shell are die-cast magnesium plates.

[0015] The soft PCB board and the main PCB board are connected via a soft flat cable.

[0016] The technical effect of the utility model is as follows: the light sensor is bonded to a suitable position at the bottom of the glass cover plate by glue, and foam tape is pasted between the soft PCB board and the glass cover plate, which plays a buffering and fixing role on the one hand, and can effectively block the surrounding light and improve performance on the other hand. At the same time, the light sensor is directly bonded to the glass cover plate, which can reduce light loss and make brightness control more precise. The light window size is small and occupies little frame space, so the narrow frame requirement can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 This is a structural schematic diagram of a display screen light sensor arrangement structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the flexible PCB board with the light sensor layout structure of the display screen.

[0020] The following are marked in the figure: 1. display back cover; 2. glass cover; 3. backlight back cover; 4. light sensor; 5. soft PCB board; 6. adhesive; 7. components; 8. socket; 9. embedding groove; 10. main PCB board. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation methods of the utility model by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model and facilitating its implementation.

[0022] See also Figure 1-2 A display screen light sensor arrangement structure includes a display screen rear shell 1, a glass cover plate 2 is provided on the display screen rear shell 1, a backlight rear shell 3 is provided inside the display screen rear shell 1, a light sensor 4 is arranged on a side of the glass cover plate 2 close to the display screen rear shell 1, a soft PCB board 5 is provided on the light sensor 4, the soft PCB board 5 is located between the display screen rear shell 1 and the backlight rear shell 3, and an adhesive 6 is provided between the soft PCB board 5 and the glass cover plate 2.

[0023] By directly bonding the light sensor 4 to the glass cover 2, light loss can be reduced, brightness control is more precise, and the light window size is small. By adding a soft PCB board 5 between the backlight rear shell 3 and the display rear shell 1, the light sensor 4 is directly connected through the soft PCB board 5, so that the overall occupied frame space is small, and the requirement of a narrow frame can be achieved. The soft PCB board 5 is fixed to the glass cover 2 by an adhesive 6 to prevent the soft PCB board 5 from falling off.

[0024] The light sensor 4 is glued to the glass cover plate 2, which can reduce light loss, make brightness control more precise, and reduce the size of the light window.

[0025] The adhesive members 6 are distributed on both sides of the light sensor 4, which can effectively block surrounding light and improve performance.

[0026] The adhesive member 6 is a foam tape, which plays a role of buffering and fixing.

[0027] Components 7 and a socket 8 are provided on one side of the flexible PCB board 5 away from the light sensor 4, thereby reducing the width and the occupied frame size.

[0028] The components 7 are arranged in a unidirectional linear manner on the flexible PCB board 5, further reducing the overall width.

[0029] The sides of the display screen rear shell 1 and the backlight rear shell 3 are provided with embedding grooves 9 for placing the soft PCB board 5 , so as to avoid interference of the display screen rear shell 1 and the backlight rear shell 3 with the light sensor 4 .

[0030] A main PCB board 10 connected to the soft PCB board 5 is arranged in the display screen rear shell 1; by providing the soft PCB board 5, it is possible to avoid the main PCB board 10 occupying too much volume, thereby preventing the overall volume of the device from being larger.

[0031] The backlight rear cover 3 and the display rear cover 1 are die-cast magnesium plates; on the one hand, they can reduce weight and meet lightweight requirements, and on the other hand, they can meet strength requirements and reduce thickness.

[0032] The soft PCB board 5 and the main PCB board 10 are connected via a flexible flat cable to achieve power supply and signal transmission.

[0033] The technical effect of the utility model is as follows: the light sensor 4 is bonded to a suitable position at the bottom of the glass cover plate 2 by glue, and a foam tape is pasted between the soft PCB board 5 and the glass cover plate 2, which plays a buffering and fixing role on the one hand, and can effectively block the surrounding light on the other hand to improve performance. At the same time, the light sensor 4 is directly bonded to the glass cover plate 2, which can reduce light loss and make brightness control more accurate. The light window size is small, and the frame space occupied is small, so the narrow frame requirement can be achieved.

[0034] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A display screen light sensor arrangement structure, characterized in that: The invention comprises a display screen rear shell (1), a glass cover plate (2) being arranged on the display screen rear shell (1), a backlight rear shell (3) being arranged inside the display screen rear shell (1), a light sensor (4) being arranged on a side of the glass cover plate (2) close to the display screen rear shell (1), a soft PCB board (5) being arranged on the light sensor (4), the soft PCB board (5) being located between the display screen rear shell (1) and the backlight rear shell (3), and an adhesive component (6) being arranged between the soft PCB board (5) and the glass cover plate (2).

2. A display screen light sensor arrangement structure according to claim 1, characterized in that: The light sensor (4) is bonded to the glass cover plate (2) by glue.

3. The display screen light sensor arrangement structure according to claim 1, characterized in that: The adhesive components (6) are distributed on both sides of the light sensor (4).

4. A display screen light sensor arrangement structure according to claim 1 or 3, characterized in that: The adhesive member (6) is a foam tape.

5. The display screen light sensor arrangement structure according to claim 1, characterized in that: A side of the soft PCB board (5) away from the light sensor (4) is provided with components (7) and a connection socket (8).

6. The display screen light sensor arrangement structure according to claim 5, characterized in that: The components (7) are arranged in a unidirectional linear manner on the soft PCB board (5).

7. The display screen light sensor arrangement structure according to claim 1, characterized in that: The sides of the display screen rear shell (1) and the backlight rear shell (3) are provided with embedding grooves (9) for placing the soft PCB board (5).

8. The display screen light sensor arrangement structure according to claim 7, characterized in that: A main PCB board (10) connected to the soft PCB board (5) is arranged inside the display screen rear shell (1).

9. A display screen light sensor arrangement structure according to claim 1 or 7, characterized in that: The backlight rear shell (3) and the display screen rear shell (1) are die-cast magnesium plates.

10. The display screen light sensor arrangement structure according to claim 8, characterized in that: The soft PCB board (5) and the main PCB board (10) are connected via a flexible flat cable.

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