Display instrument convenient for brightness adjustment

Abstract

The display instrument comprises a glass cover plate, a screen assembly, a light guide support, a PCB and a rear shell which are sequentially arranged from front to back, the light guide support and the rear shell are fixed together, a wiring hole is formed in the position, close to the bottom, of the light guide support, a flat cable of the screen assembly penetrates through the wiring hole to be connected with the PCB, the PCB is fixed to the rear side of the light guide support, and the screen assembly is fixed to the rear side of the light guide support. The front side of the light guide support is provided with a groove used for containing the screen assembly, the light guide support is provided with through holes corresponding to the LED lamps on the PCB, the screen assembly is a VA screen, a light guide column is arranged below the screen of the screen assembly, the light guide column is arranged to avoid a graphic display area, and the light guide support is provided with installation holes corresponding to the light guide column. A photosensitive element located right behind the light guide column is arranged on the PCB, and light rays are guided to the photosensitive element on the PCB through the light guide column below the screen so as to adjust the brightness. The light guide column and the photosensitive element are both arranged below the screen assembly and are not prone to being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of display instruments, in particular to a display instrument which is convenient for adjusting brightness. Background Art

[0002] Indicator instruments are often used to display vehicle speed, stability, fuel level, vehicle light on prompts, vehicle fault light flashing prompts, etc. The driver can always understand the working conditions of the car and its systems, and it is an important part of the vehicle. In order to facilitate the driver to clearly know the working conditions of the indicator instrument under different light conditions, a photosensitive element is usually set on the instrument to adjust the instrument backlight according to the ambient light outside the instrument, so that the driver can see the displayed data and understand the operating status of the car.

[0003] However, the common photosensitive elements and photosensitive holes are set on one side of the screen, resulting in a black spot on the meter, which has a strong presence. At the same time, the photosensitive holes are often set on the side of the meter, which is easy to be blocked, and the brightness adjustment is prone to errors. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art, and particularly innovatively proposes a display instrument that is easy to adjust the brightness. The light guide column and the photosensitive element are both arranged below the screen assembly, which are not easily blocked and improve the aesthetics at the same time.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a display instrument that is easy to adjust the brightness, including a glass cover plate, a screen assembly, a light guide bracket, a PCB board and a rear shell arranged in sequence from front to back, the light guide bracket and the rear shell are fixed together, the light guide bracket is provided with a wiring hole near the bottom, the wiring of the screen assembly passes through the wiring hole and is connected to the PCB board, the PCB board is fixed to the rear side of the light guide bracket, the front side of the light guide bracket is provided with a groove for accommodating the screen assembly, the light guide bracket is provided with a through hole corresponding to the LED lamp on the PCB board, the screen assembly is a VA screen, a light guide column is provided below the screen of the screen assembly, the light guide column is arranged away from the graphic display area, the light guide bracket is provided with a mounting hole corresponding to the light guide column, a photosensitive element is provided on the PCB board directly behind the light guide column, and light is guided to the photosensitive element on the PCB board through the light guide column below the screen to adjust the brightness.

[0006] In the above scheme: a positioning ridge is convexly provided on one side of the screen assembly, and a positioning groove is provided on one side of the groove corresponding to the positioning ridge, so that the installation efficiency can be improved by the positioning ridge.

[0007] In the above solution: there are multiple positioning ridges, and they are all arranged on the same side of the screen assembly, and the corresponding positioning ridges of the positioning grooves only need to correspond to one side.

[0008] In the above solution: an NFC module is arranged on the bottom side of the display instrument, and the NFC module is connected to the PCB board.

[0009] In the above scheme: the light guide column is made of acrylic, and the outer surface is polished, so it has good light guiding performance, improved photosensitivity, and rapid brightness adjustment.

[0010] In the above scheme: the light guide column and the photosensitive element are two groups, which are respectively located in the left half and the right half of the instrument. A group of light guide column and photosensitive element for adjusting brightness can be reserved, and can be installed and used according to the user's habits.

[0011] In the above scheme: a silk screen is provided on the back of the screen assembly corresponding to the light guide column to facilitate the passage of light.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are: the light guide column and the photosensitive element arranged below the screen can be arranged in the middle of the screen assembly as much as possible, which is not easily blocked and the brightness adjustment is sensitive. At the same time, there is no need to open a hole on the light guide bracket outside the screen assembly, which reduces the width of the outer frame of the screen assembly and does not form an additional black spot, thereby improving the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0014] Figure 1 It is an exploded view of the utility model.

[0015] Figure 2 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] like Figure 1 , 2 As shown, a display instrument convenient for adjusting brightness includes a glass cover plate 1, a screen assembly 2, a light guide bracket 3, a PCB board 4 and a rear shell 5 arranged in sequence from front to back. An NFC module 6 is arranged on the bottom side of the display instrument, and the NFC module 6 is connected to the PCB board 4.

[0018] The light guide bracket 3 and the rear shell 5 are fixed together. The light guide bracket 3 is provided with a wiring hole 3c at the bottom. The wiring of the screen assembly 2 passes through the wiring hole 3c and is connected to the PCB board 4. The PCB board 4 is fixed to the rear side of the light guide bracket 3, and the front side of the light guide bracket 3 is provided with a groove for accommodating the screen assembly 2. A positioning rib 2a is convexly provided on one side of the screen assembly 2, and a positioning groove is provided on one side of the groove corresponding to the positioning rib 2a, which can improve the installation efficiency by the positioning rib 2a. There are multiple positioning ribs 2a, and they are all set on the left side of the screen assembly 2. The corresponding positioning rib 2a of the positioning groove only needs to correspond to one side. Among them, the two positioning ribs 2a are arranged at intervals up and down.

[0019] A through hole is provided on the light guide bracket 3 corresponding to the LED light on the PCB board 4, and the screen assembly 2 is a VA screen. A light guide column 3a is provided below the screen of the screen assembly 2, and the light guide column 3a is set to avoid the graphic display area. A mounting hole is provided on the light guide bracket 3 corresponding to the light guide column 3a, and a photosensitive element is provided on the PCB board 4 directly behind the light guide column 3a. The light is guided to the photosensitive element on the PCB board 4 through the light guide column 3a below the screen to adjust the brightness. A silk screen 2b is provided on the back of the screen assembly 2 corresponding to the light guide column 3a to facilitate the passage of light. The light guide column 3a is made of acrylic, and the outer surface is polished, with good light guiding performance, improved photosensitivity, and rapid brightness adjustment. The light guide column 3a and the photosensitive element are two groups, respectively located in the left half and the right half of the instrument. A group of light guide columns 3a and photosensitive elements for adjusting brightness can be reserved, and can be installed and used according to the user's habits.

Claims

1. A display instrument that is convenient for adjusting brightness, comprising a glass cover plate (1), a screen assembly (2), a light guide bracket (3), a PCB board (4) and a rear shell (5) arranged in sequence from front to rear, wherein the light guide bracket (3) and the rear shell (5) are fixed together, a wiring hole (3c) is provided near the bottom of the light guide bracket (3), and the wiring of the screen assembly (2) passes through the wiring hole (3c) and is connected to the PCB board (4), characterized in that: The PCB board (4) is fixed on the rear side of the light guide bracket (3); the front side of the light guide bracket (3) is provided with a groove for accommodating the screen assembly (2); a through hole is provided on the light guide bracket (3) corresponding to the LED light on the PCB board (4); the screen assembly (2) is a VA screen; a light guide column (3a) is provided below the screen of the screen assembly (2); the light guide column (3a) is arranged away from the graphic display area; a mounting hole is provided on the light guide bracket (3) corresponding to the light guide column (3a); a photosensitive element is provided on the PCB board (4) directly behind the light guide column (3a); light is guided to the photosensitive element on the PCB board (4) through the light guide column (3a) below the screen to adjust the brightness.

2. A display instrument that is easy to adjust brightness according to claim 1, characterized in that: A positioning ridge (2a) is convexly provided on one side of the screen assembly (2), and a positioning groove is provided on one side of the groove corresponding to the positioning ridge (2a).

3. A display instrument with easy brightness adjustment according to claim 2, characterized in that: There are a plurality of positioning ridges (2a), all of which are arranged on the same side of the screen assembly (2), and corresponding positioning ridges (2a) are arranged in the grooves.

4. A display instrument with easy brightness adjustment according to claim 1, characterized in that: An NFC module (6) is arranged on the bottom side of the display instrument, and the NFC module (6) is connected to the PCB board (4).

5. The display instrument with easy brightness adjustment according to claim 1, characterized in that: The light guide column (3a) is made of acrylic, and its outer surface is polished.

6. A display instrument with easy brightness adjustment according to claim 5, characterized in that: The light guide column (3a) and the photosensitive element are divided into two groups, which are respectively located in the left half and the right half of the instrument.

7. The display instrument with easy brightness adjustment according to claim 5, characterized in that: A silk screen (2b) is provided on the back side of the screen assembly (2) corresponding to the light guide column (3a).

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