Cover structure capable of improving light diffusion effect

Abstract

The utility model discloses a cover plate structure capable of improving the light diffusion effect, comprising: a cover plate body and a diffusion film structure, a side surface of the cover plate body is provided with a layer of black ink layer printed thereon, and at least one identification character is hollowed out on the black ink layer; the diffusion film structure comprises a diffusion film body, and at least one intermediate diffusion layer is provided on one side surface of the diffusion film body, and the diffusion film body is provided on one side surface of the cover plate body, and the intermediate diffusion layer is located in the middle area of ​​the identification character. In this way, by adding at least one intermediate diffusion layer to the diffusion film body, and by making the intermediate diffusion layer located in the middle area of ​​the identification character, the strong light emitted by the LED lamp facing the middle area of ​​the identification character is further diffused, that is, the strong light emitted by the LED lamp facing the middle area of ​​the identification character is weakened by the intermediate diffusion layer, thereby ensuring that the middle area and the edge area of ​​the identification character achieve the same light intensity effect, so as to ensure that the entire identification character presents a uniform display effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cover plate production and manufacturing, in particular to a cover plate structure capable of improving light diffusion effect. Background Art

[0002] The cover plate on the vehicle instrument screen usually has character labels representing different functions, such as "PRN DM". Different characters light up to indicate different functions, such as Figure 1 As shown, the cover structure of such vehicle instrument screens generally consists of a cover body and a diffusion film, and the character logo is formed on the cover body. When the cover body and the LED lamp core are not far enough apart, the character logo will appear uneven with different brightness. A pure diffusion film can only make the light of the LED lamp uniform to a certain extent. If the diffusion film and the LED lamp core are too close, the characters will appear unevenly lit. For example, the back of the character "P" is suspended in the air facing the LED light source. Since the character "P" is larger than the LED light source, the middle area of ​​the LED light source facing the character "P" receives stronger light, and the edge area of ​​the character "P" receives weaker light, resulting in uneven light effects on the same character, affecting the overall display effect.

[0003] In view of the above, a cover plate structure capable of improving the light diffusion effect is proposed, thereby ensuring that the characters on the cover plate present a uniform display effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an improved cover plate structure capable of improving the light diffusion effect.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A cover plate structure capable of improving light diffusion effect comprises: a cover plate body and a diffusion film structure, wherein a black ink layer is printed on one side of the cover plate body, and at least one identification character is hollowed out on the black ink layer; the diffusion film structure comprises a diffusion film body, and at least one intermediate diffusion layer is arranged on one side surface of the diffusion film body, the diffusion film body is arranged on one side surface of the cover plate body, and the intermediate diffusion layer is located in the middle area of ​​the identification character.

[0007] In one embodiment, the intermediate diffusion layer is a white diffusion ink layer.

[0008] In one embodiment, the intermediate diffusion layer has a circular structure.

[0009] In one embodiment, the thickness of the intermediate diffusion layer is 1 μm to 8 μm.

[0010] In one embodiment, the black ink layer is a pure black ink layer.

[0011] In one embodiment, the identification characters are covered with a semi-transparent black ink layer.

[0012] In one embodiment, the diffusion membrane body includes a front diffusion layer and a substrate layer, the front diffusion layer is arranged on one side of the substrate layer, the intermediate diffusion layer is stacked on the front diffusion layer, the diffusion membrane body is arranged on the back side of the cover body, and the intermediate diffusion layer is located in the middle area of ​​the identification character.

[0013] In one embodiment, an adhesive backing layer is provided on a side of the diffusion membrane body away from the front diffusion layer, and an avoidance position is provided on the adhesive backing layer, and the avoidance position is used to avoid the identification characters.

[0014] In one of the embodiments, a double-sided adhesive is provided on the back side of the cover body.

[0015] In one embodiment, the diffusion membrane body has a thickness of 0.1 mm-0.5 mm.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The cover plate structure of the utility model can improve the light diffusion effect by setting a cover plate body and a diffusion film structure. The LED light source facing the identification character is diffused by the diffusion film body. At the same time, at least one intermediate diffusion layer is added to the diffusion film body. By making the intermediate diffusion layer located in the middle area of ​​the identification character, the strong light emitted by the LED lamp facing the middle area of ​​the identification character is further diffused. That is, the strong light emitted by the LED lamp facing the middle area of ​​the identification character is weakened by the intermediate diffusion layer, thereby ensuring that the middle area and the edge area of ​​the identification character achieve the same light intensity effect, so as to ensure that the entire identification character presents a uniform display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 This is a front view structural schematic diagram of a cover plate structure capable of improving light diffusion effect in one embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of a cover plate structure capable of improving the light diffusion effect in one embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a diffusion membrane structure in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] See also Figure 1 , Figure 2 and Figure 3 As shown, a cover structure 10 capable of improving light diffusion effect includes: a cover body 100 and a diffusion film structure 200, a side of the cover body 100 is printed with a black ink layer 400, and at least one identification character 300 is hollowed out on the black ink layer 400; the diffusion film structure 200 includes a diffusion film body 210, and at least one intermediate diffusion layer 220 is arranged on one side of the diffusion film body 210, the diffusion film body 210 is arranged on one side of the cover body 100, and the intermediate diffusion layer 220 is located in the middle area of ​​the identification character 300.

[0024] It should be noted that the front side of the diffusion film body 210 is attached to the corresponding position of the identification character 300, and the LED light is arranged behind the diffusion film body 210. There is a corresponding LED light behind the identification character 300. Since the identification character 300 is larger than the LED light, when the distance between the diffusion film body 210 and the LED light is too close, the identification character 300 will have an uneven lighting effect, that is, the light received by the middle area of ​​the identification character 300 facing the LED light source is stronger, and the light received by the edge area of ​​the identification character 300 is weaker, resulting in uneven lighting effect on the same identification character, affecting the overall display effect. Therefore, in the present invention, by adding at least one intermediate diffusion layer 220 on one side of the diffusion film body 210, and making the intermediate diffusion layer 220 located in the middle area of ​​the logo character 300, that is, in the irradiation area of ​​the strong light of the LED light, the intermediate diffusion layer 220 makes the strong light in the middle area of ​​the logo character 300 further diffused evenly, thereby weakening the strong light in this area, and then ensuring that the middle area of ​​the logo character 300 and the edge area of ​​the logo character 300 have the same light intensity effect, so as to ensure that the entire logo character 300 presents a uniform display effect. It should also be noted that the intermediate diffusion layer 220 is not limited to one layer, but can also be multiple layers, and one or more intermediate diffusion layers 220 can be selected according to actual needs.

[0025] Furthermore, a general diffusion film is provided with a diffusion ink layer or a white particle coating on the basis of the substrate layer to achieve a uniform light effect. In this embodiment, preferably, the middle diffusion layer 220 is a white diffusion ink layer.

[0026] Preferably, the intermediate diffusion layer 220 is in a circular structure. Since the LED light source is scattered in a circular manner, a circular intermediate diffusion layer 220 is preferred, so as to further ensure the uniformity of light diffusion, so that the middle area of ​​the logo character 300 and the edge area of ​​the logo character 300 have the same light intensity effect, thereby ensuring the uniformity of the display of the entire logo character.

[0027] Preferably, the thickness of the intermediate diffusion layer 220 is 1 μm to 8 μm.

[0028] In one embodiment, the black ink layer 400 is a pure black ink layer. In this embodiment, the cover body 100 uses 1mm-2mm aluminum silicon or soda lime glass. The black ink layer 400 is screen-printed on the back of the cover body 100. The pure black ink layer is used to block light and prevent the human eye from observing the internal structure of the vehicle instrument screen. In addition, in this embodiment, the identification characters 300 are covered with a semi-transparent black ink layer. The transmittance of the semi-transparent black ink layer at 550nm is: 9% ± 3%. The use of a semi-transparent black ink layer can not only make the light emitted by each identification character softer, but also prevent the human eye from observing the internal structure of the vehicle instrument screen through the identification characters when the screen is off.

[0029] In one embodiment, the diffusion film body 210 includes a front diffusion layer and a substrate layer, the front diffusion layer is disposed on one side of the substrate layer, the intermediate diffusion layer is superimposed on the front diffusion layer, the diffusion film body is disposed on the back of the cover body 100, and the intermediate diffusion layer 220 is located in the middle area of ​​the identification character 300. The substrate layer can be a PET (polyester) substrate, and a diffusion ink layer or a white particle coating is coated on the PET substrate layer to achieve a uniform light effect. An antistatic layer can be disposed on the back of the diffusion film body 210, so that the diffusion film body 210 has an antistatic effect.

[0030] In one embodiment, an adhesive backing layer 211 is provided on one side of the diffusion membrane body 210 away from the front diffusion layer, and an avoidance position is provided on the adhesive backing layer 211, and the avoidance position is used to avoid the identification character 300. The adhesive backing layer 211 is used to connect the diffusion membrane body 210 with other components of the vehicle instrument screen; preferably, the thickness of the adhesive backing layer 211 is 0.05 mm. In addition, an adhesive 212 is provided on the front area of ​​the diffusion membrane body 210, and the diffusion membrane body 210 is bonded to the cover body 100 through the adhesive 212. Further, a double-sided adhesive 110 is provided on the back of the cover body 100, and the double-sided adhesive is mainly used to bond the cover body 100 to the host behind the cover body 100; in this embodiment, the thickness of the double-sided adhesive is 0.8 mm.

[0031] In one embodiment, a plurality of identification characters are formed on the black ink layer 400 , and a plurality of intermediate diffusion layers 220 are provided, each of which is located in a corresponding middle area of ​​each identification character 300 .

[0032] Preferably, the diffusion membrane body 210 has a thickness of 0.1 mm-0.5 mm.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cover structure capable of improving light diffusion effect, characterized in that: include: A cover body, wherein a black ink layer is printed on one side of the cover body, and at least one identification character is hollowed out on the black ink layer; and The diffusion film structure comprises a diffusion film body, at least one intermediate diffusion layer is arranged on one side of the diffusion film body, the diffusion film body is arranged on one side of the cover plate body, and the intermediate diffusion layer is located in the middle area of ​​the identification character.

2. The cover structure capable of improving light diffusion effect according to claim 1, characterized in that: The middle diffusion layer is a white diffusion ink layer.

3. The cover structure capable of improving light diffusion effect according to claim 2, characterized in that: The intermediate diffusion layer has a circular structure.

4. The cover structure capable of improving light diffusion effect according to claim 3, characterized in that: The thickness of the intermediate diffusion layer is 1 μm to 8 μm.

5. The cover structure capable of improving light diffusion effect according to any one of claims 1 to 4, characterized in that: The black ink layer is a pure black ink layer.

6. The cover structure capable of improving light diffusion effect according to claim 5, characterized in that: The identification characters are covered with a semi-transparent black ink layer.

7. The cover structure capable of improving light diffusion effect according to any one of claims 1 to 4, characterized in that: The diffusion film body includes a front diffusion layer and a substrate layer, the front diffusion layer is arranged on one side of the substrate layer, the intermediate diffusion layer is stacked on the front diffusion layer, the diffusion film body is arranged on the back side of the cover body, and the intermediate diffusion layer is located in the middle area of ​​the identification characters.

8. The cover structure capable of improving light diffusion effect according to claim 7, characterized in that: An adhesive backing layer is arranged on a side surface of the diffusion film body away from the front diffusion layer, and an avoidance position is opened on the adhesive backing layer, and the avoidance position is used to avoid the identification characters.

9. The cover structure capable of improving light diffusion effect according to any one of claims 1 to 4, characterized in that: The back side of the cover body is provided with a double-sided adhesive.

10. The cover structure capable of improving light diffusion effect according to any one of claims 1 to 4, characterized in that: The thickness of the diffusion membrane body is 0.1 mm-0.5 mm.

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