Automobile signal lamp based on LCD

Abstract

The LCD-based automobile signal lamp comprises a lamp body, an outer lens, LED particles, an optical structure and a light source plate, the lamp body and the outer lens are matched to form a lamp cavity, the LED particles are arranged on the light source plate and located in the lamp cavity, the optical structure is located in the lamp cavity, the optical structure comprises an LCD screen and a light guide structure, and the light guide structure is arranged on the outer lens. Light emitted by the LED particles forms signal light through the light guide structure, the LCD screen and the outer lens. Display of different functional modules is achieved through the control module and the LCD screen, and the problems that due to injection molding of an original inner lens, the required width between two or three bright areas is large, the whole lamp space is large, the loading requirement of a main engine plant cannot be met, and cost is high are solved. According to the scheme, the structure is simple, and different patterns can be displayed.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle lamps, and in particular to an automobile signal lamp based on LCD. Background Art

[0002] At present, the structure of automobile signal lights on the market mostly uses internal mirrors to enhance LED light and display light patterns and status. The internal mirrors in automobile signal lights are mostly injection molded. If you want to display different modules, you need to use two-color or three-color injection molding. There are obvious disadvantages. The required width between two or three bright areas is relatively wide, so the space of the entire lamp is very large. First, it cannot meet the requirements of the OEM for vehicle installation, and second, the cost is high.

[0003] LCD display modules have relevant applications in car lights; for example, patent CN203318271U discloses an LCD background light installation structure for a car, including a shielding cover, an LCD module, a light-scattering film, a plastic base and a circuit board, the shielding cover is connected above the circuit board, the plastic base is arranged between the shielding cover and the circuit board, the light-scattering film is arranged on the upper side of the plastic base, the LCD module is arranged on the upper side of the light-scattering film, the side edges of the upper part of the plastic base are respectively provided with notches, the side edges of the light-scattering film are respectively provided with protruding blocks, the protruding blocks are each located in a notch and bent downward, and the bent portion of the protruding block is located between the side wall of the shielding cover and the side wall of the upper part of the plastic base. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an automobile signal light based on LCD to achieve the purpose of simplifying the structure and realizing the display of different patterns.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The LCD-based automobile signal light comprises a lamp body, an external light distribution mirror, LED particles, an optical structure and a light source board. The lamp body and the external light distribution mirror cooperate to form a lamp cavity. The LED particles are arranged on the light source board and located in the lamp cavity. The optical structure is located in the lamp cavity. The optical structure comprises an LCD screen and a light guide structure. The light emitted by the LED particles passes through the light guide structure, the LCD screen and the external light distribution mirror to form a signal light.

[0007] Further:

[0008] It also includes a control module, which is connected to the LCD screen to control the display of different modules on the screen.

[0009] The light source panel, the light guide structure, the LCD screen and the external light distribution mirror are stacked in sequence from the inside to the outside.

[0010] The light source plate and the LED particles are located on one side of the light guide structure, and the light guide structure, the LCD screen and the external light distribution mirror are stacked in sequence from the inside to the outside.

[0011] The control module is integrated inside the lamp cavity.

[0012] The light-guiding structure comprises a primary optical device and a secondary optical device which are stacked, wherein the primary optical device is a concentrator and the secondary optical device is a light homogenizing plate.

[0013] The light-guiding structure comprises a primary optical device and a secondary optical device which are stacked. The primary optical device is a backlight plate, and the backlight plate is provided with optical teeth corresponding to the LEDs. The secondary optical device is a light-homogenizing plate.

[0014] The light source panel, the light guide structure and the LCD screen are positioned by the same bracket in the lamp cavity.

[0015] The light guiding structure is an integrated structure.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The LCD-based automobile signal light has a reasonable structural design. The control module is used to realize the display of different functional modules on the LCD screen, which solves the problem that the width required between two or three bright areas of the original inner light distribution mirror is relatively wide due to injection molding, resulting in a large space for the entire lamp, which cannot meet the requirements of the main engine factory for installation and has a high cost. The solution has a simple structure and can realize the display of different patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a schematic diagram of the direct light emission form of the present invention.

[0020] Figure 2 It is a schematic diagram of the side-lighting form of the present invention.

[0021] In the figure:

[0022] 1. External light distribution mirror, 2. LCD screen, 3. Secondary optical device, 4. Primary optical device, 401. Optical gear, 5. LED particles, 6. Light source board, 7. Control module, 8. Lamp body. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2As shown, the LCD-based automobile signal light includes a lamp body 8, an external light distribution mirror 1, LED particles 5, an optical structure and a light source board 6. The lamp body and the external light distribution mirror cooperate to form a lamp cavity. The LED particles are arranged on the light source board and located in the lamp cavity. The optical structure is located in the lamp cavity.

[0025] The optical structure includes an LCD screen 2 and a light guide structure. The light emitted by the LED particles passes through the light guide structure, the LCD screen and the external light distribution mirror to form a signal light.

[0026] The automobile signal light of the present invention further comprises a control module 7, which is connected to the LCD screen to control the display of different modules on the screen; the LCD screen realizes the display of different modules through the control module, that is, controls the display of different signal light areas or different patterns; further, the control module is integrated inside the lamp cavity, and the integrated setting has a compact structure.

[0027] The automobile signal light of the present invention has a reasonable structural design. The display of different functional modules is realized by the LCD screen through the control module, which solves the problem that the width required between two or three bright areas of the original inner light distribution mirror is relatively wide due to injection molding, resulting in a large space for the entire lamp, which cannot meet the installation requirements of the main engine factory and has a high cost. The present solution has a simple structure and can realize the display of different patterns.

[0028] like Figure 1 As shown, an example of a lamp structure is:

[0029] The light source board, light guide structure, LCD screen and external light distribution mirror are stacked in sequence from the inside to the outside; the light source board, light guide structure and LCD screen are positioned by the same bracket in the lamp cavity to form a modular structure, which is easy to assemble and has a stable and reliable structure.

[0030] The light-guiding structure comprises a primary optical device 4 and a secondary optical device 3 which are stacked. The primary optical device is a concentrator, and the secondary optical device is a homogenizer. The homogenizer can be an inner mirror or a thick-walled part.

[0031] like Figure 2 As shown, another example of lamp structure is:

[0032] The light source board and LED particles are located on one side of the light guide structure. The light guide structure, LCD screen and external light distribution mirror are stacked in sequence from the inside to the outside. The light guide structure is an integrated structure with a compact structure.

[0033] The light-guiding structure comprises a primary optical device and a secondary optical device which are stacked. The primary optical device is a backlight plate which is provided with optical teeth corresponding to the LEDs. The secondary optical device is a homogenizing plate which can be an internal mirror or a thick-walled part.

[0034] In the present invention, LED particles are placed on a light source board, and the light emitted by the LED is processed by a primary optical device and reflected to a secondary optical device, and the light type is homogenized by the secondary optical device and reflected to an LCD screen; the LCD screen realizes display of different modules through a control module; there is no need to set multiple areas like a traditional car light structure, and the light size can be designed to be smaller to meet the styling requirements of the car.

[0035] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0036] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An automobile signal light based on LCD, comprising a lamp body, an external light distribution mirror, LED particles, an optical structure and a light source board, wherein the lamp body and the external light distribution mirror cooperate to form a lamp cavity, the LED particles are arranged on the light source board and located in the lamp cavity, and the optical structure is located in the lamp cavity, characterized in that: The optical structure includes an LCD screen and a light guide structure, and the light emitted by the LED particles forms a signal light through the light guide structure, the LCD screen and an external light distribution mirror.

2. The LCD-based automobile signal light as claimed in claim 1, characterized in that: It also includes a control module, which is connected to the LCD screen to control the display of different modules on the screen.

3. The LCD-based automobile signal light as claimed in claim 1, characterized in that: The light source panel, the light guide structure, the LCD screen and the external light distribution mirror are stacked in sequence from the inside to the outside.

4. The LCD-based automobile signal light according to claim 1, characterized in that: The light source plate and the LED particles are located on one side of the light guide structure, and the light guide structure, the LCD screen and the external light distribution mirror are stacked in sequence from the inside to the outside.

5. The LCD-based automobile signal light as claimed in claim 2, characterized in that: The control module is integrated inside the lamp cavity.

6. The LCD-based automobile signal light as claimed in claim 3, characterized in that: The light-guiding structure comprises a primary optical device and a secondary optical device which are stacked, wherein the primary optical device is a concentrator and the secondary optical device is a light homogenizing plate.

7. The LCD-based automobile signal light as claimed in claim 4, characterized in that: The light-guiding structure comprises a primary optical device and a secondary optical device which are stacked. The primary optical device is a backlight plate, and the backlight plate is provided with optical teeth corresponding to the LEDs. The secondary optical device is a light-homogenizing plate.

8. The LCD-based automobile signal light as claimed in claim 6, characterized in that: The light source panel, the light guide structure and the LCD screen are positioned by the same bracket in the lamp cavity.

9. The LCD-based automobile signal light as claimed in claim 7, characterized in that: The light guiding structure is an integrated structure.

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