OLED signal lamp utilizing sunlight

Abstract

The invention discloses an OLED signal lamp utilizing sunlight, which belongs to the technical field of traffic safety and comprises a signal lamp mounting frame, a plurality of lampshades are fixedly connected to one side of the signal lamp mounting frame at equal intervals, transparent OLED display screens are arranged in the lampshades, and an optical waveguide color filter plate is arranged on one side, close to the signal lamp mounting frame, of each transparent OLED display screen. A total reflection side light plate is arranged on the side, away from the transparent OLED display screen, of the optical waveguide color filter plate, LED light bars are arranged on the two sides, close to the optical waveguide color filter plate, of the total reflection side light plate, a reflection film is arranged on the side, close to the signal lamp installation frame, of the total reflection side light plate, and an environment illumination monitoring mechanism is arranged on the outer side of the lampshade. A signal lamp control system is arranged in the lampshade, and the environment illumination monitoring mechanism is electrically connected with the signal lamp control system. The system has the characteristics of energy conservation, no glare, high stability and high safety, and meanwhile, the safety of the crossroad is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of traffic safety, and particularly relates to an OLED signal lamp utilizing sunlight. Background Art

[0002] Currently, the most commonly used traffic signal lamps are LED traffic signal lamps. There are many types of such lamps. There are LED traffic lights made of high-power lamp beads and LED traffic signal lamps made of low-power ones. According to the light-emitting area, they are further divided into types 200, 300, 400, etc. The number of LED lamp beads used by each manufacturer is different, and the power is also different. However, generally, the power of most LED lamps is between 10W and 25W. The power of traffic signal lamps is directly related to their energy consumption. Traffic signal lamps are always on, and the number of signal lamps in cities is huge, so their energy consumption is also very large. In recent years, various countries have begun to pay attention to the energy-saving problem of traffic signal lamps and have formulated energy consumption standards to reduce unnecessary energy consumption. To improve the energy efficiency of signal lamps, only through more advanced technical means and more scientific management can the efficient, low-carbon, green, and sustainable development of urban traffic be achieved.

[0003] Existing traffic signal lamps have insufficient brightness when directly irradiated by sunlight and insufficient long-distance penetration in bad weather. The national standard for traffic signal lamps is that the brightness of red and yellow lights is 4000 - 6000 cd / ㎡, and that of green lights is 8000 - 10000 cd / ㎡. In actual implementation, in order to consider price competitiveness, basically the lowest brightness standard is adopted. In fact, in the case of direct sunlight in summer, the outdoor illuminance may be as high as 100,000 cd / ㎡. Even if traffic signal lamps are set according to the highest brightness standard, their brightness is still insufficient. In bad weather, such as haze weather, rain and snow weather, the signal lamps have insufficient long-distance penetration. When the driver reaches the traffic signal lamp, the buffer distance is insufficient. Therefore, traffic signal lamps generally have the problem of insufficient brightness when directly irradiated by sunlight. The insufficient brightness of traffic signal lamps will cause unclear road indication recognition and easily lead to traffic accidents.

[0004] Existing traffic signal lamps have glare and light pollution at night. When reducing the brightness of LED lamps, obvious flickering will occur in LED lamps. Therefore, there is a minimum brightness limit for LED lamps, which also determines that there is a minimum brightness limit for signal lamps using LED lamps. However, this brightness is still too high for a dark night. Compared with the illuminance of less than 1 cd / ㎡ in the night environment, signal lamps with more than 200 cd / ㎡ will cause glare to drivers looking directly at the signal lamps and will also cause light pollution to the environment.

[0005] Existing traffic lights have poor anti-interference ability. During thunderstorms, especially when lightning activities are frequent, lightning strikes may damage the control system of traffic lights. Especially when the lightning protection is insufficient, it may cause abnormal display of traffic lights, such as: red and green lights on at the same time, lights flashing, or completely stopping working. This situation requires staff to maintain and traffic police to direct traffic, wasting a large amount of human resources. Summary of the Invention

[0006] The purpose of the present invention is to provide an OLED signal light using sunlight to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above purpose, the present invention provides the following solution: The present invention provides an OLED signal light using sunlight, including a signal light installation frame. On one side of the signal light installation frame, a plurality of lamp covers are fixedly connected at equal intervals. A transparent OLED display screen is arranged inside the lamp cover. A waveguide color filter plate is arranged on the side of the transparent OLED display screen close to the signal light installation frame. A total reflection side light plate is arranged on the side of the waveguide color filter plate away from the transparent OLED display screen. On both sides of the total reflection side light plate close to the waveguide color filter plate, LED light strips are respectively arranged. A reflection film is arranged on the side of the total reflection side light plate close to the signal light installation frame. An ambient illuminance monitoring mechanism is arranged outside the lamp cover. A signal light control system is arranged inside the lamp cover. The ambient illuminance monitoring mechanism is electrically connected to the signal light control system.

[0008] Preferably, the waveguide color filter plate includes a waveguide layer and a color filter film.

[0009] Preferably, the ambient illuminance monitoring mechanism includes an illuminance sensor arranged outside the bottom of the lamp cover. The illuminance sensor is electrically connected to the signal light control system.

[0010] Preferably, the signal light control system includes an illuminance sensor control system, an LED driving voltage system, an LED light strip rotation switching controller, and an OLED display screen signal system. The illuminance sensor control system is electrically connected to the illuminance sensor. The LED driving voltage system and the LED light strip rotation switching controller are electrically connected to the LED light strips. The OLED display screen signal system is electrically connected to the transparent OLED display screen.

[0011] Preferably, the signal lamp installation frame includes a signal lamp component fixing frame, in which a transparent OLED display screen, a waveguide color filter plate, an LED light bar, a total reflection side light plate, a reflection film and an ambient illuminance monitoring mechanism are provided. On one side close to the installation column, installation brackets are symmetrically provided, and the installation brackets are fixedly connected to the installation column through fixing screws. On both sides inside the transparent OLED display screen, pressing plates are symmetrically provided.

[0012] Preferably, the transparent OLED display screen includes a cathode, an electron injection layer, an electron transport layer, an organic light emitting layer, a hole transport layer, a hole injection layer, an anode and a substrate connected in sequence.

[0013] The present invention discloses the following technical effects: The present invention has the characteristics of energy saving, no glare, high stability and high safety. At the same time, it can improve the safety of intersections. During the day with high illuminance, the signal is mainly displayed by using ambient light, which can reduce the power and driving voltage of the OLED signal lamp, and realize low-carbon and safe traffic lights. At night or during the day with low illuminance, the light emitted by the LED lamp is introduced into the waveguide color filter plate and the light of the color of the filter plate is reflected by the reflection film to display the signal, which can protect the eyesight and visual sensitivity of those who watch the OLED signal lamp and improve the safety of intersections. Description of the Drawings

[0014] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0015] Figure 1 is a schematic structural diagram of the OLED signal lamp of the present invention;

[0016] Figure 2 is a schematic structural diagram of another embodiment of the OLED signal lamp of the present invention;

[0017] Figure 3 is a schematic diagram of the OLED signal lamp of the present invention displaying a signal;

[0018] Figure 4 is a schematic structural diagram of another embodiment of the OLED signal lamp of the present invention displaying a signal;

[0019] Figure 5 is a schematic structural diagram of the OLED display screen of the present invention;

[0020] Figure 6 is a schematic structural diagram of the waveguide color filter plate of the present invention;

[0021] Figure 7 is an optical path diagram of the waveguide color filter plate of the present invention;

[0022] Figure 8Schematic diagram of the installation of the LED light strip and the total reflection side light plate;

[0023] Figure 9 Schematic diagram of the installation of the optical waveguide filter plate;

[0024] Figure 10 Schematic diagram of the optical path of the total reflection side light plate;

[0025] Figure 11 Schematic diagram of the installation of the ambient illuminance monitoring mechanism;

[0026] Figure 12 Logic diagram of the signal lamp control system;

[0027] Figure 13 Schematic diagram of the signal lamp installation frame.

[0028] In the figure: 1. Transparent OLED display screen; 2. Optical waveguide color filter plate; 21. Optical waveguide layer; 22. Filter film; 3. LED light strip; 4. Total reflection side light plate; 5. Reflective film; 6. Ambient illuminance monitoring mechanism; 60. Illuminance sensor; 7. Signal lamp control system; 71. Illuminance sensor control system; 72. LED drive voltage system; 73. LED light strip rotation switching controller; 74. OLED display screen signal system; 75. Power line; 8. AC to DC low-voltage system; 9. Signal lamp installation frame; 91. Signal lamp component fixing frame; 92. Pressure plate; 93. Installation bracket; 94. Fixing screw; 95. Installation column. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] Refer to Figures 1-13As shown in the figure, this embodiment provides an OLED signal lamp that utilizes sunlight, including a signal lamp installation frame 9. A plurality of lamp shades are fixedly connected to one side of the signal lamp installation frame 9 at equal intervals. A transparent OLED display screen 1 is provided inside the lamp shade. A light waveguide color filter plate 2 is provided on the side of the transparent OLED display screen 1 close to the signal lamp installation frame 9. A total reflection side light plate 4 is provided on the side of the light waveguide color filter plate 2 away from the transparent OLED display screen 1. LED light strips 3 are respectively provided on both sides of the total reflection side light plate 4 close to the light waveguide color filter plate 2. A reflection film 5 is provided on the side of the total reflection side light plate 4 close to the signal lamp installation frame 9. An ambient illuminance monitoring mechanism 6 is provided outside the lamp shade. A signal lamp control system 7 is provided inside the lamp shade. The ambient illuminance monitoring mechanism 6 is electrically connected to the signal lamp control system 7.

[0032] By turning on and off the transparent OLED display screen 1, signal switching of the signal lamp is realized. At the same time, the ambient light is reflected by the OLED signal lamp to enhance the brightness of the signal lamp and reduce the lighting energy consumption of the LED lamp. When the OLED signal lamp is turned on to display a color signal, the transparent OLED display screen 1 is turned off to the transparent state. In the case of high ambient illuminance, the ambient light is converted into enhanced brightness of the signal lamp by the light waveguide color filter plate 2 and the reflection film 5. In this way, the number of LED lamps used in the signal lamp and the energy consumption of the signal lamp are reduced. At the same time, the stability, safety, and lifespan of the OLED signal lamp are improved. In the case of low ambient illuminance, the light emitted by the LED light strip 3 is introduced into the light waveguide color filter plate 2 to emit light, so that the OLED signal lamp displays the color signal of the light waveguide color filter plate without glare, protecting the eyesight and visual sensitivity of the viewers of the OLED signal lamp and improving the safety of vehicle driving and pedestrian walking at intersections. When the OLED signal lamp is turned off, the OLED display screen is turned on to display black, the ambient light is absorbed, and at the same time, the LED lighting is turned off, and the OLED signal lamp becomes black.

[0033] The present invention has the characteristics of energy conservation, no glare, high stability, and high safety. At the same time, it can improve the safety of intersections. During the day with high illuminance, the signal is mainly displayed using ambient light, which can reduce the power and driving voltage of the OLED signal lamp, realizing low-carbon and safe traffic lights. At night or during the day with low illuminance, the light emitted by the LED lamp is introduced into the light waveguide color filter plate 2 and the light of the color of the filter plate is reflected by the reflection film 5 to display the signal, which can protect the eyesight and visual sensitivity of the viewers of the OLED signal lamp and improve the safety of intersections.

[0034] There are two implementation methods for the OLED signal lamp. One is a transparent OLED display screen 1, a waveguide color filter plate 2, a total reflection side light plate 4, and a reflection film 5. The other is a transparent OLED display screen 1, a total reflection side light plate 4, a waveguide color filter plate 2, and a reflection film 5. The transparent OLED display screen 1, the waveguide color filter plate 2, the total reflection side light plate 4, the reflection film 5, and the signal lamp control system 7 are all installed in the signal lamp installation frame 9. The illuminance sensor of the ambient illuminance monitoring mechanism 6 is installed at a position where the ambient light can be seen on the signal lamp installation frame 9; the AC-to-DC low-voltage system 8 is installed at the 220V AC power supply and is connected to the signal lamp control system 7 through a DC power line; the signal lamp installation frame 9 is both the installation frame for each system or component inside the OLED signal lamp and the installation and fixing bracket for the OLED signal lamp on the signal lamp rack.

[0035] When the OLED signal lamp is turned on to display a color signal, the transparent OLED display screen 1 is turned off and in a transparent state. When the ambient illuminance is high during the day, the ambient light is reflected by the transparent OLED display screen 1, the waveguide color filter plate 2, the total reflection side light plate 4 to the reflection film 5, and the reflected light then exits through the total reflection side light plate 4 and the waveguide color filter plate 2, and the color of the OLED signal lamp becomes the color of the filter film 22 of the waveguide color filter plate 2; at night or when the ambient illuminance sensor 60 system senses that the ambient light illuminance is low and insufficient, the signal lamp control system 7 controls the LED light strip 3 to emit light to increase the brightness of the signal lamp. The light emitted by the LED light strip 3 is reflected by the total reflection side light plate 4 and the reflection film 5 to the planar light-emitting surface of the total reflection side light plate 4 and exits through the waveguide color filter plate 2 and the transparent OLED display screen 1, making the color of the signal lamp become the color of the filter film 22 of the waveguide color filter plate 2. When the OLED signal lamp is turned off, the OLED display screen is turned on to display black, the ambient light is absorbed by the black, and at the same time the LED light illumination is turned off, and the OLED signal lamp becomes black.

[0036] The transparent OLED display screen 1 is an on-off valve for controlling the introduction of light into the waveguide color filter plate 2. When the transparent OLED display screen 1 is turned off, the transparent OLED is in a transparent state and can transmit ambient light; when the transparent OLED display screen 1 is turned on, the transparent OLED display screen 1 displays black and can absorb ambient light.

[0037] The waveguide color filter plate 2 is an optical conversion device that absorbs the ambient light and the light emitted by the LED lamp in the waveguide of the total reflection side light plate 4, emits the ambient light and the light emitted by the LED lamp in the waveguide of the total reflection side light plate 4 in a set direction, and can filter the white ambient light into the color of the filter film 22.

[0038] In a further optimized solution, the waveguide color filter plate 2 includes a waveguide layer 21 and a filter film 22.

[0039] The incident light surface or the emergent light surface of the optical waveguide color filter 2 can be a flat surface, a convex surface, or a concave surface. Besides maximizing the absorption of ambient light according to the OLED signal lamp, the curvature radius of the incident light surface or the emergent light surface can be set according to the distance between the accident-prone area at the intersection and the signal lamp to set the curvature of the emergent light surface, so that the optimal visible range of the signal lamp is located at the accident-prone end, improving the driver's recognition of the signal lamp.

[0040] The optical waveguide layer 21 includes but is not limited to an optical fiber optical waveguide plate and a high light transmittance light homogenizing plate.

[0041] The filter film 22 is a red, yellow, or green filter film 22, which can filter white light into red, green, or yellow light when pasted on the total reflection surface of the optical waveguide color filter 2.

[0042] The light emitted by the ring light and the LED light bar 3 passes through the optical waveguide layer 21 and reaches the filter film 22. After the light passes through the colored filter film 22, the light of colors other than the color of the filter film 22 is absorbed by the filter film 22, and the light passing through the optical waveguide color filter 2 becomes the color of the color filter. The forming material of the optical waveguide layer 21 of the optical waveguide color filter 2 includes but is not limited to an optical fiber optical waveguide plate and a high light transmittance light homogenizing plate.

[0043] The optical waveguide color filter 2 has the functions of filtering color, homogenizing light, and directionally reflecting the incident ambient light and the LED light of the LED light bar 3 introduced from the side of the total reflection side plate 4. The incident light surface or the emergent light surface of the optical waveguide color filter 2 can be a flat surface, a convex surface, or a concave surface. Besides maximizing the absorption of ambient light according to the OLED signal lamp, the curvature radius of the incident light surface or the emergent light surface of the optical waveguide color filter 2 can be set according to the distance between the accident-prone area at the intersection and the signal lamp to set the curvature of the emergent light surface, so that the optimal visible range of the signal lamp is located at the accident-prone end, improving the driver's recognition of the signal lamp. In actual implementation, personalized design can be carried out according to the installation position, direction, and ambient light of the signal lamp to achieve the best recognition.

[0044] For a further optimized solution, the ambient illuminance monitoring mechanism 6 includes an illuminance sensor 60 arranged on the outer side of the bottom of the lamp shade, and the illuminance sensor 60 is electrically connected to the signal lamp control system 7.

[0045] The ambient illuminance sensor control system 71 based on the ambient illuminance sensed by the ambient illuminance sensor 60 and according to the set minimum ambient illuminance value for starting the LED light bar 3 to emit light. For example, when it is lower than 1000 cd / ㎡, the LED light bar 3 is started to emit light to enhance the brightness of the OLED signal lamp.

[0046] The illuminance sensor 60 is installed at a position on the signal lamp mounting frame that can sense the ambient brightness, and the illuminance sensor control system 71 is integrated on top of the signal lamp control system 7. There is a mounting hole for the illuminance sensor 60 below the transparent glass lamp cover. After the illuminance sensor 60 is installed in place, the mounting gap is sealed with a liquid-curable transparent OCA adhesive for waterproofing.

[0047] The light-emitting color of the LED lights on the LED light bar 3 can be white, red, yellow, or green. When implementing the embodiment with the waveguide light filter plate in front of the total reflection side light plate 4 (or near the position of the transparent OLED display screen 1), the light-emitting color of the LED lights can be white or the color of the light filter film 22; when implementing the embodiment with the total reflection side light plate 4 in front of the waveguide light filter plate, the light-emitting color of the LED lights can be light of the same color as the light filter film 22 or white light. When using LED white light, it is necessary to deepen the color depth of the light filter film 22.

[0048] There are two installation methods for the LED light bar 3. One is to first install the LED light bar 3 in the signal lamp mounting frame 9, then install the total reflection side light plate 4 and adjust the distance between the LED lights on the LED light bar 3 and the side of the total reflection side light plate 4. After that, install the waveguide color filter plate 2, and finally press the waveguide color filter plate 2 with the pressing plate 92 and fix the pressing plate 92 to the signal lamp mounting frame 9. The fixing methods include but are not limited to screw fixing and glue bonding. The other is to first install the waveguide color filter plate 2 in the signal lamp mounting frame 9, then install the LED light bar 3, and then install the total reflection side light plate 4. Move the position of the total reflection side light plate 4 so that the distances between all the LED lamp beads on the LED light bar 3 and the total reflection side light plate 4 are equal or approximately equal. Finally, press the total reflection side light plate 4 with the pressing plate 92 and fix the pressing plate 92 to the signal lamp mounting frame 9. The fixing methods include but are not limited to screw fixing and glue bonding. The LED lamp beads on the LED light bar 3 can be in close contact with the side light-incident surface of the total reflection side light plate 4 or the distance is less than 0.2 mm.

[0049] The light-emitting color of the LED lights on the LED light bar 3. When implementing the embodiment with the waveguide light filter plate in front of the total reflection side light plate 4 (or near the position of the transparent OLED display screen 1), the light-emitting color of the LED lights can be white or the color of the light filter film 22; when implementing the embodiment with the total reflection side light plate 4 in front of the waveguide light filter plate, the light-emitting color of the LED lights is light of the same color as the light filter film 22 or white light. When using LED white light, it is necessary to deepen the color depth of the light filter film 22 to offset the reduction of the color gradation caused by the white light.

[0050] The total reflection side light plate 4 is a waveguide flat glass that is highly transparent in the plane axial direction and can totally reflect light in the thickness direction or on the side. When combined with a matching reflective film 5, it can convert the incident light in its thickness direction or on the side into a surface light source that emits light from the plane opposite to the reflective film 5. Ambient light can pass through the total reflection side light plate 4 in the plane axial direction, and the light emitted by the LED lights in the LED light strip 3 in the thickness direction or on the side can also be reflected by the reflective film 5 and emitted from the plane axial direction of the total reflection side light plate 4.

[0051] It is required to ensure that more ambient light can pass through the total reflection side light plate 4 and enter the waveguide color filter 2, and at the same time, it is required to have the ability to uniformly emit the light emitted by the LED light strip 3 incident from its side from the light-emitting surface of the total reflection side light plate 4. Therefore, in this embodiment, the total reflection side light plate 4 selected is a fully transparent light guide side light plate. When used in combination with the reflective film, it can reflect the light incident from its side and uniformly emit it from the light-emitting surface of the total reflection side light plate 4 after being reflected by the reflective film.

[0052] The reflective film is both a reflective film that can totally reflect the light incident from the side of the total reflection light measuring plate and convert it into light emitted from the plane axial direction of the total reflection side light plate 4, and a reflective film for the light incident from the plane axial direction of the total reflection light measuring plate. There are two implementation methods for the reflective film. One is that when the total reflection side light plate 4 is placed in front of the waveguide color filter 2, the reflective film is attached to the light filtering film 22 on the total reflection surface of the waveguide color filter 2; the other is that when the total reflection side light plate 4 is placed behind the waveguide color filter 2, the reflective film is attached behind the total reflection side light plate 4.

[0053] For a further optimized solution, the signal lamp control system 7 includes an illuminance sensor control system 71, an LED drive voltage system 72, an LED light strip rotation switching controller 73, and an OLED display screen signal system 74. The illuminance sensor control system 71 is electrically connected to the illuminance sensor 60, the LED drive voltage system 72 and the LED light strip rotation switching controller 73 are electrically connected to the LED light strip 3, and the OLED display screen signal system 74 is electrically connected to the transparent OLED display screen 1.

[0054] The LED drive voltage system 72 controls the lighting of the LED lights and the opening of the dimming film of the transparent OLED display screen 1 system to be synchronized, and the corresponding turning off of the LED lights and the closing of the dimming film are also synchronized.

[0055] When the ambient illuminance is lower than the set illuminance value, the illuminance sensor control system 71 notifies the signal lamp control system 7 to control the LED lights to emit light, and the LED lights provide a signal light source for the signal lamp.

[0056] The LED driving voltage system 72 is a system that provides the power voltage for driving the LED light strip 3, thereby controlling the turning on or off of the LED lights. It can convert 24V DC into the driving voltage of 3.3V for the LED and supply power to the LED light strip 3.

[0057] The LED light strip rotation switching controller 73 is a system that controls the rotation power supply or disconnection of two LED light strips 3. To extend the service life of the LED light strip 3, the system adopts the rotation operation of two LED light strips 3, which doubles the service life of the LED lights. The LED light strip rotation switching controller 73 controls the alternating operation of two LED light strips 3.

[0058] The OLED display signal system 74 is a signal system that controls the power supply switch of the transparent OLED display and provides a black display signal for the transparent OLED display 1.

[0059] The power cord 75 includes, but is not limited to, the DC cables connecting the signal light control system 7 with the transparent OLED display 1, the illuminance sensor 60, and the control interface of the LED light strip 3, and the connection power cord 75 between the AC-DC low-voltage system 8 and the 220V AC cable at the intersection where the signal lights are located.

[0060] The AC-DC low-voltage system 8 converts the 220V AC power supply into 24V DC low voltage for the signal light installation frame 9 and supplies power to the OLED signal lights. 24V DC belongs to the safety voltage, which increases the safety and anti-interference ability of the signal lights. After the power cord 75 of 24V DC reaches the OLED signal lights, it is divided into two paths. One path is for the LED driving voltage system 72, and then through the illuminance sensor control system 71, according to the illuminance data, it controls the opening or closing of the power supply switch of the LED light strip 3; the other path is for the transparent OLED display 1 and is controlled by the OLED display signal system 74 to open or close the power supply, and controls the transparency or black display of the transparent OLED display 1.

[0061] For a further optimized solution, the signal light installation frame 9 includes a signal light component fixing frame 91. Inside the signal light component fixing frame 91, there are a transparent OLED display 1, a light waveguide color filter 2, an LED light strip 3, a total reflection side light plate 4, a reflective film 5, and an ambient illuminance monitoring mechanism 6. On one side close to the installation column 95, there are symmetrically arranged installation brackets 93. The installation brackets 93 are fixedly connected to the installation column 95 through fixing screws 94. On both sides inside the transparent OLED display 1, there are symmetrically arranged pressing plates 92.

[0062] The signal lamp installation frame 9 is not only the mounting frame of the OLED signal lamp on the signal lamp mounting rack or mounting column 95, but also a part of the control circuit of the signal lamp control system 7 inside the OLED signal lamp, and the mounting frame for the transparent OLED display screen 1, the light waveguide color filter plate 2, the LED light strip 3, the total reflection side light plate 4, the reflective film 5, and the ambient illuminance monitoring mechanism 6. The mounting bracket 93 is fixed to the signal lamp mounting rack or mounting column 95 through the fixing screws 94.

[0063] In a further optimized solution, the transparent OLED display screen 1 includes a cathode, an electron injection layer, an electron transport layer, an organic light-emitting layer, a hole transport layer, a hole injection layer, an anode, and a substrate that are connected in sequence.

[0064] All of the above materials are made of highly transparent materials. In the non-powered state, the transparent OLED display screen 1 is in a transparent state; in the powered state, the OLED display screen signal system 74 of the signal lamp control system 7 provides a black display signal for the transparent OLED display screen 1, and the RGB of the transparent OLED display screen 1 all shows colors, and the transparent OLED display screen 1 becomes an opaque black.

[0065] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0066] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An OLED signal light utilizing sunlight, characterized in that: The invention comprises a signal light installation frame (9), a plurality of lampshades are fixedly connected at equal intervals on one side of the signal light installation frame (9), a transparent OLED display screen (1) is arranged inside the lampshade, a light waveguide color filter plate (2) is arranged on the side of the transparent OLED display screen (1) close to the signal light installation frame (9), a total reflection side light plate (4) is arranged on the side of the light waveguide color filter plate (2) away from the transparent OLED display screen (1), the total reflection side light plate (4), LED light strips (3) are arranged on both sides of the total reflection side light plate (4) close to the light waveguide color filter plate (2), a reflection film (5) is arranged on the side of the total reflection side light plate (4) close to the signal light installation frame (9), an environmental illumination monitoring mechanism (6) is arranged on the outside of the lampshade, a signal light control system (7) is arranged inside the lampshade, and the environmental illumination monitoring mechanism (6) is electrically connected to the signal light control system (7).

2. The OLED signal light utilizing sunlight according to claim 1, characterized in that: The optical waveguide color filter plate (2) comprises an optical waveguide layer (21) and a filter film (22).

3. The OLED signal light utilizing sunlight according to claim 1, characterized in that: The environmental illumination monitoring mechanism (6) comprises an illumination sensor (60) arranged on the outside of the bottom of the lampshade, and the illumination sensor (60) is electrically connected to the signal light control system (7).

4. The OLED signal light utilizing sunlight according to claim 3, characterized in that: The signal light control system (7) comprises an illumination sensor control system (71), an LED driving voltage system (72), an LED light bar rotation switching controller (73) and an OLED display screen signal system (74); the illumination sensor control system (71) is electrically connected to the illumination sensor (60); the LED driving voltage system (72) and the LED light bar rotation switching controller (73) are electrically connected to the LED light bar (3); and the OLED display screen signal system (74) is electrically connected to the transparent OLED display screen (1).

5. The OLED signal light utilizing sunlight according to claim 1, characterized in that: The signal light installation frame (9) comprises a signal light component fixing frame (91), wherein the transparent OLED display screen (1), the optical waveguide color filter plate (2), the LED light bar (3), the total reflection side light plate (4), the reflection film (5) and the environmental illumination monitoring mechanism (6) are arranged inside the signal light component fixing frame (91), and a mounting bracket (93) is symmetrically arranged on one side close to the mounting column (95), wherein the mounting bracket (93) is fixedly connected to the mounting column (95) by means of fixing screws (94), and pressure plates (92) are symmetrically arranged on both sides inside the transparent OLED display screen (1).

6. The OLED signal light utilizing sunlight according to claim 1, characterized in that: The transparent OLED display screen (1) comprises a cathode, an electron injection layer, an electron transport layer, an organic light-emitting layer, a hole transport layer, a hole injection layer, an anode and a substrate which are connected in sequence.

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