TWI764028B - High-penetration uniform light diffusion module - Google Patents

Abstract

A high-penetration uniform light diffusion module includes a light emitting device and a dimming layer, a light transmitting layer and a refractive layer sequentially disposed on the light emitting device. The light emitting device has a reflective substrate and a light emitting part installed onto the reflective substrate, and the dimming layer is formed by a transparent substrate and uniformly distributed particles for refracting a light source, and the dimming layer near a surface of the light emitting device has a transparent reflective layer facing the light emitting part, and the light transmitting layer is used for increasing the gap between the dimming layer and the refractive layer, so that some of the light source emitted from the light emitting part penetrates through the transparent reflective layer to enter into the dimming layer, and some of the light source is refracted from the transparent reflective layer to a side of the light emitting part and reflected from the reflective substrate to the dimming layer. After being adjusted by the dimming layer, the light source uniformly enters into the light transmitting layer and then projects to the refractive layer and finally to the outside.

Description

High penetration uniform light diffusion module

A high-penetration uniform light diffusing module, especially a uniform light module applied to a display, enables the light of the light-emitting device to be highly concentrated and diffused by the light source through the module, so as to achieve the effect of uniform projection to the outside.

Press, a common direct-type backlight panel generally used in displays, the light source is arranged with a plurality of LED illuminators on one side of the module, and the light is split by the light guide plate to illuminate the display, but due to LED and LED If the distance between them is too large, it will be difficult to control the uniformity of brightness, which will affect the penetration and diffusion of the light source and cause uneven brightness. The only way to balance the light source is to increase the number of LEDs to shorten the distance between the LED arrays. Larger brightness, but the relative power consumption will increase with the increase of LEDs, or by adding multiple diffuser films or increasing the spacing between the films to increase the light source diffusivity, but the thickness of the overall module will also follow. Increase a lot and make it more expensive.

Therefore, how to solve the above-mentioned problems and deficiencies of conventional knowledge is the subject that the relevant industry is eager to develop.

The high penetration uniform light diffusion module of the present invention, especially the light uniformity module applied to the display, has the main purpose of adjusting the energy of the light transmittance by using the light-adjusting layer containing particles that refract the light source.

The secondary purpose of the present invention is to lengthen the diffusion and refraction distance of the light source to achieve the effect of uniform light without increasing the thickness of the module. Light diffusion effect to achieve uniform penetration and diffusion of the light source to the outside world.

In order to achieve the above-mentioned purpose, the high-pass uniform light diffusing element of the present invention is provided with a light-emitting device, a light-adjusting layer and a refraction layer sequentially disposed above the light-emitting device, and the light-emitting device is provided with a light-emitting element, wherein the light-adjusting layer is composed of The light-transmitting substrate and the particles in the substrate are evenly distributed to refract the light source, so that after the light source projected by the light-emitting element is adjusted by the dimming layer 2, it can enter the refraction layer uniformly, and then project from the refraction layer to the light source. outside world.

In the above-mentioned high penetration uniform light diffusion module, the particle density of the particles used to refract the light source in the base material of the dimming layer is set from high to low from the position facing the light-emitting element toward the two sides.

In the above-mentioned high-penetration uniform light diffusion module, a light-transmitting layer is arranged between the light-adjusting layer and the refraction layer to increase the distance between the light-adjusting layer and the refraction layer, and the light-transmitting layer 4 is made of glass, PET terephthalate It is made of ethylene formate, PMMA polymethyl methacrylate, MS styrene copolymer or PS polystyrene with light-transmitting functional materials, and the thickness is less than 10mm.

In the aforementioned high-penetration uniform light diffusion module, the light-emitting device is provided with a reflective substrate, the light-emitting element is provided on the reflective substrate, and the light-adjusting layer is provided with a light-transmitting reflective layer facing the light-emitting element on the surface close to the light-emitting device , so that the light transmissive and reflective layer transmits the light source emitted by the light-emitting element, part of the light source penetrates the translucent reflective layer into the dimming layer, and part of the light source is refracted to the side of the light-emitting element, and then reflected by the reflective substrate to the dimming layer.

In the above-mentioned high penetration uniform light diffusing module, the light adjusting layer is provided with a first refraction structure on the surface away from the refraction layer, and the first refraction structure is formed by a plurality of concave parts.

In the above-mentioned high-penetration uniform light diffusion module, the light-adjusting layer is provided with a first refraction structure on the surface away from the refraction layer, and the first refraction structure is composed of a plurality of convex parts.

In the above-mentioned high penetration uniform light diffusing module, the light-adjusting layer is provided with a second refraction structure on the surface close to the refraction layer, and the second refraction structure is composed of a plurality of concave portions.

In the aforementioned high-penetration uniform light diffusion module, the light-adjusting layer is provided with a first refraction structure on the surface away from the refraction layer, the first refraction structure is formed by a plurality of recesses, and the light-adjustment layer is located on the surface close to the refraction layer. A second refraction structure is provided, the second refraction structure is formed by a plurality of concave parts, and the concave parts of the first refraction structure and the second refraction structure are arranged staggered.

In the aforementioned high penetration uniform light diffusing module, the refraction layer is provided with a third refraction structure on the surface away from the light-adjusting layer, and the third refraction structure is formed by a plurality of concave portions.

In the aforementioned high penetration uniform light diffusing module, the refraction layer is provided with a third refraction structure on the surface away from the light adjustment layer, and the third refraction structure is formed by a plurality of convex parts.

In the above-mentioned high penetration uniform light diffusion module, the refraction layer is provided with a fourth refraction structure on the surface close to the light-adjusting layer, and the fourth refraction structure is formed by a plurality of concave portions.

In the aforementioned high penetration uniform light diffusion module, the refraction layer is provided with a third refraction structure on the surface away from the light adjustment layer, the third refraction structure is composed of a plurality of recesses, and the refraction layer is disposed on the surface close to the light adjustment layer There is a fourth refraction structure, the fourth refraction structure is formed by a plurality of concave parts, and the concave parts of the third refraction structure and the fourth refraction structure are arranged opposite to each other.

In the aforementioned high-penetration uniform light diffusion module, the light-adjusting layer is provided with a first refraction structure on the surface away from the refracting layer. A third refracting structure is provided, the third refracting structure is composed of a plurality of concave portions, and the concave portions of the first refracting structure and the third refracting structure are arranged opposite to each other.

In the aforementioned high-penetration uniform light diffusion module, the light-adjusting layer is provided with a first refraction structure on the surface away from the refracting layer. There is a third refraction structure, the third refraction structure is formed by a plurality of concave parts, and the concave parts of the first refraction structure and the third refraction structure are arranged in a staggered manner.

Please refer to the first figure. It can be clearly seen from the figure that the high-pass uniform light diffusion module is provided with a light-emitting device 1 and a light-adjusting layer 2 and a refracting layer 3 arranged in sequence above the light-emitting device 1 to emit light. The device 1 is provided with a light-emitting element 11, wherein:

The light-emitting device 1 is provided with a reflective substrate 12 , and the light-emitting elements 11 are arranged on the reflective substrate 12 at plural intervals.

The light-adjusting layer 2 is composed of a light-transmitting substrate 21 and a plurality of particles 22 that are uniformly distributed in the substrate 21 to refract the light source. The light-adjusting layer 2 of the present invention is formed by using a photosensitive curing material as the base material 21 and then adding particles 22 of refracting light sources (eg, silicon dioxide, titanium dioxide) into the base material 21, and then curing by light.

The light-transmitting layer 4 is disposed between the light-adjusting layer 2 and the refracting layer 3 to increase the distance between the light-adjusting layer 2 and the refracting layer 3, and its material can be glass, PET terephthalate, PMMA polymethyl methacrylate, MS styrene copolymer or PS polystyrene and other materials with high light transmission function and thickness less than 10mm.

By means of the above, the light source of the light-emitting element 11 of the light-emitting device 1 is irradiated on the light-adjusting layer 2, and the particles 22 of the light-refraction light source are uniformly distributed in the base material 21 of the light-adjusting layer 2, and the light source is uniformly diffused through the refraction adjusting light source. The light is transmitted to the light-transmitting layer 4, and then transmitted to the refraction layer 3, and then projected to the external lighting display.

Please refer to the second figure. It can be clearly seen from the figure that the difference between the second embodiment of the present invention and the aforementioned first embodiment is that the second embodiment is the particles 22 in the base material 21 of the light-adjusting layer 2 The distribution density is set from high to low from the position facing the light-emitting element 11 toward the two sides, so that the more particles 22 are arranged in the area facing the light-emitting device 1 and the closer to the light-emitting element 11, the more light is added to the brightest part of the light source. refraction spread.

Please refer to the third figure. It can be clearly seen from the figure that the difference between the third embodiment of the present invention and the aforementioned first embodiment is that in the third embodiment, a surface of the light-adjusting layer 2 close to the light-emitting device 1 is provided with a Opposite to the light-transmitting and reflecting layer 5 of the light-emitting element 11, so that the light-transmitting and reflecting layer 5 transmits the light source emitted by the light-emitting element 11, part of the light source penetrates the light-transmitting and reflecting layer 5 into the light-adjusting layer 2, and part of the light source is refracted to the light-emitting element 11 The side reflective substrate 12 is then reflected to the light adjustment layer 2 by the reflective substrate 12 .

Please refer to the fourth figure, it can be clearly seen from the figure that the difference between the fourth embodiment of the present invention and the first embodiment is that the fourth embodiment is disposed on the surface of the light-adjusting layer 2 away from the refracting layer 3 There is a first refracting structure 23, the first refracting structure 23 is composed of a plurality of concave portions; and the refracting layer 3 is provided with a third refracting structure 31 on the surface away from the light-adjusting layer 2, and the third refracting structure 31 is composed of a plurality of Concave portion. And the concave portions of the first refraction structure 23 and the third refraction structure 31 are disposed opposite to each other.

Please refer to FIG. 5. It can be clearly seen from the figure that the difference between the fifth embodiment of the present invention and the aforementioned fourth embodiment is that the fifth embodiment is located between the first refraction structure 23 and the third refraction structure 31. The recesses are staggered.

Please refer to the sixth figure. It can be clearly seen from the figure that the difference between the sixth embodiment of the present invention and the aforementioned first embodiment is that the sixth embodiment is disposed on the surface of the light-adjusting layer 2 away from the refracting layer 3 There is a first refraction structure 23, the first refraction structure 23 is composed of a plurality of concave parts, and the light-adjusting layer 2 is provided with a second refraction structure 25 on the surface close to the refraction layer 3, and the second refraction structure 25 is composed of a plurality of concave parts It is formed, and the concave portions of the first refraction structure 23 and the second refraction structure 25 are staggered. The refracting layer 3 is provided with a third refracting structure 31 on the surface away from the light-adjusting layer 2 . The third refracting structure 31 is formed by a plurality of concave portions. 33. The fourth refraction structure 33 is composed of a plurality of concave portions, and the concave portions of the third refraction structure 31 and the fourth refraction structure 33 are disposed opposite to each other. The concave portions of the second refracting structure 25 and the fourth refracting structure 33 are disposed opposite to each other, because the surfaces of the light-transmitting layer 4' between the light-adjusting layer 2 and the refracting layer 3 are all convex structures, so that the number of modules does not increase. Under the thickness, the light-transmitting layer 4' increases the light source diffusion and refraction space.

Please refer to FIG. 7. It can be clearly seen from the figure that the difference between the seventh embodiment of the present invention and the aforementioned first embodiment is that the seventh embodiment is disposed on the surface of the light-adjusting layer 2 away from the refracting layer 3 There is a first refracting structure 24, and the first refracting structure 24 is formed by a plurality of convex portions. The refracting layer 3 is provided with a third refracting structure 31 on the surface away from the light-adjusting layer 2 , and the third refracting structure 31 is formed by a plurality of concave portions.

Please refer to FIG. 8. It can be clearly seen from the figure that the difference between the eighth embodiment of the present invention and the first embodiment is that the eighth embodiment is attached to the light-adjusting layer 2 and away from the refracting layer 3. A first refractive structure 24 is disposed on the surface, and the first refractive structure 24 is composed of a plurality of convex portions. The refracting layer 3 is provided with a third refracting structure 32 on the surface away from the light-adjusting layer 2 , and the third refracting structure 32 is formed by a plurality of convex portions.

In view of the above-mentioned embodiments of the high penetration uniform light diffusion module, the concave or convex surface structures of the light-adjusting layer 2 and the refractive layer 3 are coated on the light-transmitting layer ( 4, 4') The upper and lower surfaces are cured by backlight, and the thickness change caused by the structure also has the effect of adjusting the transmittance of the light source, and the above surface structure changes are used for light collection and uniform light diffusion. By the above, the light source of the light-emitting element 11 on the light-emitting device 1 is projected into the light-adjusting layer 2, and after being diffused and adjusted by the refracting light source particles 22 in the light-adjusting layer 2, it enters the light-transmitting layer (4, 4') to the refracting layer 3 Diffuse projection, so that the light source can be projected to the outside world with a high degree of comprehensiveness and uniformity.

1: Lighting device 11: Lighting parts 12: Reflective substrate 2: Dimming layer 21: Substrate 22: Particles 23: The first refraction structure 24: The first refraction structure 25: Second refraction structure 3: Refractive layer 31: The third refraction structure 32: Third Refraction Structure 33: Fourth Refraction Structure 4, 4': transparent layer

The first figure is a schematic diagram of the first embodiment of the present invention. The second figure is a schematic diagram of the second embodiment of the present invention. Figure 3 is a schematic diagram of a third embodiment of the present invention. FIG. 4 is a schematic diagram of a fourth embodiment of the present invention. FIG. 5 is a schematic diagram of a fifth embodiment of the present invention. FIG. 6 is a schematic diagram of a sixth embodiment of the present invention. FIG. 7 is a schematic diagram of a seventh embodiment of the present invention. FIG. 8 is a schematic diagram of an eighth embodiment of the present invention.

1: Lighting device

11: Lighting parts

12: Reflective substrate

2: Dimming layer

21: Substrate

22: Particles

3: Refractive layer

4: Translucent layer

Claims (14)

A high-penetration uniform light diffusion module, especially a uniform light module applied to a display, the uniform light module is provided with a light-emitting device, a light-adjusting layer and a refraction layer arranged in sequence above the light-emitting device, and the light-emitting device is provided with There is a light-emitting element, which is characterized in that the light-adjusting layer is composed of a light-transmitting substrate and a plurality of particles that are evenly distributed in the substrate to refract the light source, so that the light source projected by the light-emitting element is adjusted by the light-adjusting layer. It can evenly enter the refracting layer, and then project from the refracting layer to the outside world. The particles used to refract the light source in the base material of the dimming layer are set from high to low from the position facing the light-emitting element toward the two sides. The high-penetration uniform light diffusion module according to claim 1, wherein a light-transmitting layer is arranged between the light-adjusting layer and the refracting layer to increase the distance between the light-adjusting layer and the refracting layer. The high penetration uniform light diffusion module according to claim 2, wherein the light transmission layer is made of glass, PET ethylene terephthalate, PMMA polymethyl methacrylate, MS styrene copolymer or PS It is made of polystyrene material with light-transmitting function, and the thickness is less than 10mm. The high-penetration uniform light diffusion module according to claim 2, wherein the light-emitting device is provided with a reflective substrate, the light-emitting element is provided on the reflective substrate, and the light-adjusting layer is provided with a surface facing the light-emitting element on the surface close to the light-emitting device The light-transmitting and reflective layer enables the light-transmitting and reflective layer to transmit the light source emitted by the light-emitting element. light layer. The high penetration uniform light diffusion module according to claim 2, wherein the light-adjusting layer is provided with a first refraction structure on the surface away from the refraction layer, and the first refraction structure is formed by a plurality of concave portions. The high penetration uniform light diffusing module as claimed in claim 2, wherein the light-adjusting layer is provided with a first refraction structure on a surface away from the refraction layer, and the first refraction structure is composed of a plurality of convex portions. The high penetration uniform light diffusing module according to claim 2, wherein the light-adjusting layer is provided with a second refraction structure on the surface close to the refraction layer, and the second refraction structure is formed by a plurality of concave portions. The high penetration uniform light diffusing module according to claim 2, wherein the light-adjusting layer is provided with a first refraction structure on the surface away from the refraction layer, the first refraction structure is formed by a plurality of recesses, and the light-adjusting layer is located on the surface of the light-adjusting layer. A second refracting structure is disposed near the surface of the refracting layer, the second refracting structure is composed of a plurality of concave portions, and the concave portions of the first refracting structure and the second refracting structure are staggered. The high penetration uniform light diffusing module according to claim 2, wherein the refraction layer is provided with a third refraction structure on the surface away from the light adjustment layer, and the third refraction structure is composed of a plurality of concave portions. The high penetration uniform light diffusing module according to claim 2, wherein the refraction layer is provided with a third refraction structure on the surface away from the light adjustment layer, and the third refraction structure is composed of a plurality of convex parts. The high penetration uniform light diffusing module according to claim 2, wherein the refraction layer is provided with a fourth refraction structure on a surface close to the light-adjusting layer, and the fourth refraction structure is composed of a plurality of concave portions. The high penetration uniform light diffusion module according to claim 2, wherein the refraction layer is provided with a third refraction structure on the surface away from the light adjustment layer, the third refraction structure is composed of a plurality of concave parts, and the refraction layer is close to the adjustment layer. The surface of the optical layer is provided with a fourth refraction structure, the fourth refraction structure is composed of a plurality of concave parts, and the concave parts of the third refraction structure and the fourth refraction structure are disposed opposite to each other. The high penetration uniform light diffusion module according to claim 2, wherein the light-adjusting layer is provided with a first refraction structure on the surface away from the refracting layer, the first refraction structure is composed of a plurality of concave parts, and the refraction layer is far from the adjustment layer. The surface of the optical layer is provided with a third refraction structure, the third refraction structure is composed of a plurality of concave portions, and the concave portions of the first refraction structure and the third refraction structure are arranged opposite to each other. The high penetration uniform light diffusion module according to claim 2, wherein the light-adjusting layer is provided with a first refraction structure on the surface away from the refracting layer, the first refraction structure is composed of a plurality of concave parts, and the refraction layer is far from the adjustment layer. The surface of the optical layer is provided with a third refraction structure, the third refraction structure is composed of a plurality of concave portions, and the concave portions of the first refraction structure and the third refraction structure are arranged in a staggered manner.

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