WO2001004967A1

WO2001004967A1 - Displaying light source device

Info

Publication number: WO2001004967A1
Application number: PCT/JP2000/004439
Authority: WO
Inventors: Sachihiro Mukaida
Original assignee: Baybright Ltd.
Priority date: 1999-07-09
Filing date: 2000-07-04
Publication date: 2001-01-18

Abstract

A displaying light source device which is provided with excellent characteristics of light emitting diodes, is free from uneven brightness of light, and can provide a high-brightness, uniform surface light emission even with a small power consumption. When a light emitting diode (20) goes on, a high-brightness light flux emitted from its head (21) and having a narrow directional angle is refraction-reflected at a wide angle toward the entire periphery from the center of the light flux by a reflection element (30) and diffused toward the bottom surface and the like of a frame (11). Since the inner sides of the bottom surface and side surfaces of the frame (11) are covered with a high-reflection material (12), the light reflected in various directions inside the frame (11) has its brightness uniformized but not lowered while passing through a translucent resin (40). The light then goes toward the opened upper surface of the frame (11) and is emitted to the outside through a light dispersing resin (50).

Description

Description Light source device for display Technical field

The present invention relates to a display light source device that can obtain uniform surface light emission using a light emitting diode as a light source. Background art

Conventionally, this type of display light source device has been used for various purposes, such as a backlight for an advertisement signboard and an electric display panel for notifying various kinds of information. These light sources are generally used as a fluorescent lamp or a neon sign tube. Etc. were used.

Light emitting diodes are also known as one of the light sources. They are mainly used for displays and displays, and they are mounted on various devices to turn on and off the power and indicate the operating status. It was often used as a lamp.

However, the conventional technology described above has a problem that when the light source is a fluorescent lamp or a neon sign tube, the replacement work is troublesome and the cost increases because the durability time is shorter than that of the light emitting diode. .

In addition, fluorescent lamps and the like have a problem in that they emit light in a discharge manner, so that the on / off time is long, and that the photoelectric conversion efficiency is relatively low, so that power consumption is large. In addition, it was difficult to make the device longer and thinner, and the degree of freedom of the shape was significantly restricted. In addition, there was a practical problem that it was easily damaged due to impact.

On the other hand, display light source devices that use light-emitting diodes have a longer life than fluorescent lamps, and have extremely high visibility and brightness.They do not discharge light, so they turn on and off quickly and have high photoelectric conversion efficiency. Low power consumption, shockproof Although it has the advantage of being superior in impact resistance, it has the following problems.

In other words, a light emitting diode can obtain a high-luminance luminous flux due to its characteristics, but its directional angle is very narrow, so even if it is arranged in a high-density matrix, it can be used as a backlight for advertising signs. When used, the light was illuminated and darkened between the area where the light beam hit and the area where the light beam did not hit, making it difficult to obtain uniform surface light emission.

The present invention has been made in view of the above-mentioned problems of the prior art, and has excellent characteristics of a light-emitting diode and low power consumption without generating uneven light and darkness. However, it is an object of the present invention to provide a display light source device capable of obtaining high brightness and uniform surface emission. Disclosure of the invention

The gist of the present invention for achieving the above-described object is as follows.

[1] In a display light source device capable of obtaining uniform surface light emission using a light emitting diode as a light source,

A mold, a light-emitting diode disposed in the mold, a reflector disposed at a position facing a head of the light-emitting diode, and the mold so as to bury the light-emitting diode and the reflector. And a light-dispersing resin laminated on the upper surface side of the light-transmitting resin.

The mold has an opening on the top side, and the inside of the bottom and side faces is covered with a highly reflective material having high light reflection efficiency.

The light emitting diode is disposed in the mold with its head facing upward toward the opening of the mold.

The reflector is configured to reflect a high-luminance light beam with a narrow directivity angle emitted from the head of the light-emitting diode at a wide angle from the center of the light beam in all directions. The light-transmitting resin is disposed at a position facing the head of the light-emitting diode in the mold, and the translucent resin entirely covers the reflective material located above the light-emitting diode in the mold. Filled in the form to the position where it gets,

The display light source device, wherein the light-dispersing resin is stacked on the upper surface of the light-transmitting resin in a state of covering the upper surface of the mold.

C 2] The reflector is formed in a substantially conical shape with a top portion facing the center of the light beam of the light emitting diode, and a through-hole for transmitting the center of the light beam is formed along the central axis of the reflector. The display light source according to [1], wherein the reflector is disposed at a position facing a head of the light emitting diode via a holder member,

The holder member comprises: a mounting ring externally fitted to a base end of the light emitting diode; and a supporting wire extending extremely finely from the mounting ring and fixing the reflecting material in advance. The display light source device according to [1] or [2], wherein

[4] The light-dispersing resin is obtained by mixing a light-dispersing material and a colorant having a similar color to the emission color of the light-emitting diode in a translucent resin.

], [2] or [3].

[5] The mold is formed in a narrow width extending in a longitudinal direction, and a plurality of light emitting diodes are arranged in the mold in a line at predetermined intervals. The display light source device according to [2], [3] or [4].

[6] In a display light source device capable of obtaining uniform surface light emission using a light emitting diode as a light source,

A mold, a light-emitting diode disposed in the mold, a light-transmitting resin filled in the mold so as to bury the light-emitting diode, and light to be laminated on the upper surface side of the light-transmitting resin. Having a dispersing resin, The formwork has an opening on the top side, and the inside of the bottom and side faces are covered with a highly reflective material having a high light reflection efficiency.

The light emitting diode is disposed in the mold with a head thereof facing a bottom surface or a side surface of the mold.

The translucent resin is filled in the mold to a position where the light emitting diode can be entirely covered in the mold,

[7] In a display light source device capable of obtaining uniform surface light emission using a light emitting diode as a light source,

A light-transmitting resin molded into a flat plate shape spreading in a plane direction, a plurality of light-emitting diodes embedded and arranged in the light-transmitting resin at predetermined intervals, and each light-emitting diode in the light-transmitting resin. A reflector disposed at a position facing the head of the gate, and a light-dispersing resin laminated in advance on the upper surface side of the light-transmitting resin, wherein the light-transmitting resin and the light-dispersing resin are cut into a desired shape. Then, the cut surface and the bottom surface are covered with a highly reflective material having high light reflection efficiency,

Each of the light emitting diodes is embedded in the translucent resin cut into the desired shape, with the head thereof facing upward to the upper surface of the translucent resin,

Each of the reflectors reflects a light beam having a narrow directivity angle and a high brightness emitted from the head of each of the light emitting diodes at a wide angle from the center of the light beam to the entire circumference. A display light source device, which is disposed at a position facing a head of a light emitting diode in a resin.

When the light-emitting diode is turned on, the high-luminance luminous flux emitted from the head with a narrow directivity angle is refracted and reflected in a wide angle from the center of the luminous flux by the reflector, and is distributed over a wide area to the bottom side of the mold. I do. Since the inside of the bottom and side surfaces of the mold is covered with a highly reflective material, the light reflected in various directions within the mold can be averaged without decreasing brightness while passing through the translucent resin. Be transformed into Then, the light is irradiated to the outside through the light dispersion resin toward the upper surface side of the opening of the mold.

With light-dispersing resin, light is diffusely reflected finely in various directions, so that the staying time of light becomes longer, resulting in higher brightness and uniform surface emission than the surface of the light-dispersing resin that covers the opening of the formwork. be able to.

Further, specifically, the reflecting material may be formed, for example, in a substantially conical shape in which the top is opposed to the center of the light flux of the light emitting diode. By forming a through-hole for transmitting the center of the light beam along the central axis of the reflecting material, it is possible to prevent a slight shadow of the reflecting material from being generated on the light dispersion resin.

Further, if the reflecting material is arranged at a position facing the head of the light emitting diode via the holder member, positioning can be easily performed. Here, if the holder member is constituted by a mounting ring externally fitted to the base end portion of the light emitting diode, and a supporting wire rod which protrudes extremely finely from the mounting ring and fixes the reflecting material in advance, the holder member can be reliably and reliably provided. The reflector can be easily positioned in the right place, and the light is not obstructed as much as possible.

Further, if the light dispersion resin is a mixture of a light dispersion material and a colorant having a similar color to the emission color of the light emitting diode in a light transmitting resin, clearer and more vivid light can be obtained. Can be.

Furthermore, such a configuration is achieved by forming the mold in a narrow width extending in the longitudinal direction, and arranging a plurality of light emitting diodes in a row in the mold at predetermined intervals. By arranging a plurality of units as a plane of a desired size or by arranging a plurality of units so as to form a circular shape, a columnar display light source device can be easily realized.

As another display light source device, the light emitting diode has a head portion. You may comprise so that it may be arrange | positioned in a formwork in the state which goes to the bottom surface or the side surface of the said formwork. In this case, the reflective material is not provided. Even in such a simplified configuration, the light of the light emitting diode is uniformly reflected in various directions within the mold, averaged in the light transmitting resin, and then passed through the light dispersing resin to the outside. Irradiated.

Further, as another display light source device, a light-dispersing resin is previously laminated on the upper surface side of the plate-shaped translucent resin without using the mold, and this is cut into a desired shape later. I do. A plurality of light emitting diodes and a reflecting material may be buried side by side at predetermined intervals in the cut translucent resin. Thereby, various types of display light source devices can be easily formed. In this case, the bottom surface or cut surface of the translucent resin is covered with a highly reflective material. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing a display light source device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a perspective view showing a holder member included in the display light source device according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating a state in which the reflector of the display light source device according to the first embodiment of the present invention reflects a light beam of the light emitting diode in a wide area. FIGS. 5A and 5B are an end view and a front view, respectively, showing a device in which the display light source devices according to the first embodiment of the present invention are arranged in a flat plate.

FIG. 6 is an end view showing a device in which the display light source devices according to the first embodiment of the present invention are arranged in a circle.

FIG. 7 is a perspective view showing a display light source device according to a second embodiment of the present invention. It is.

FIG. 8 is a sectional view showing a display light source device according to a third embodiment of the present invention.

FIG. 9 is a sectional view showing a display light source device according to a fourth embodiment of the present invention.

FIG. 10 is a sectional view showing a display light source device according to a fifth embodiment of the present invention.

FIG. 11 is a perspective view showing a light-transmitting resin and a light-diffusing resin formed in a flat plate shape of a display light source device according to a sixth embodiment of the present invention.

FIG. 12 is a front view showing a drawn state when cutting a light-transmitting resin and a light-diffusing resin formed into a flat plate into a desired shape in the display light source device according to the sixth embodiment of the present invention. FIG.

FIG. 13 is a front view showing a state in which a light-transmitting resin and a light-diffusing resin molded into a flat plate shape of a display light source device according to a sixth embodiment of the present invention are cut into desired shapes.

FIG. 14 shows a light emitting diode formed by cutting a transparent resin and a light diffusing resin formed into a flat plate into a desired shape to constitute a display light source device according to the sixth embodiment of the present invention. It is sectional drawing explaining the operation | work of embedding.

FIG. 15 is a perspective view showing a display light source device according to the sixth embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, various embodiments representing the present invention will be described with reference to the drawings. 1 to 6 show a first embodiment of the present invention.

The display light source device 10 according to the present embodiment is a device that can obtain uniform surface light emission by using the light emitting diode 20 as a light source. As shown in FIG. 1, the display light source device 10 includes a mold 11, a light emitting diode 20 disposed in the mold 11, and a head 21 of the light emitting diode 20. A reflective material 30 disposed at an opposing position; a translucent resin 40 filling the mold 11 so as to bury the light emitting diode 20 and the reflective material 30; And a light dispersion resin 50 laminated on the upper surface of the light resin 40.

The mold 11 is formed in a narrow width extending in the longitudinal direction, and has an opening on the upper surface side where the trapezoidal cross section expands. The inside of the bottom and side surfaces of the mold 11 is covered with a highly reflective material 12 having high light reflection efficiency. Here, various materials can be considered as the highly reflective material 12. For example, a mirror-finished metal layer, a white paint having high light reflection efficiency, or the like may be used.

A lead wire 13 for connecting a pair of lead wires 22 extending from the light emitting diode 20 is provided on the bottom surface of the mold 11. In addition, a small hole may be formed in the bottom surface of the mold 11 so that each lead wire 22 of the light emitting diode 20 is extended to the outside.

The light emitting diodes 20 are arranged in the mold 11 so as to be arranged in a line at predetermined intervals. The light emitting diode 20 as a light source has a longer life than fluorescent lamps and neon sign tubes, etc., and has extremely high visibility and brightness. It has characteristics such as low power consumption due to high efficiency and excellent impact resistance.

Each light emitting diode 20 is disposed in the mold 11 with its head 21 facing upward toward the opening of the mold 11. As shown in FIG. 2, each lead wire 22 extending from the light emitting diode 20 as described above is connected to a lead wire 13 on the bottom surface of the mold 11.

The reflecting member 30 is arranged at a position facing the head 21 of the light emitting diode 20 in the mold 11. With this reflector 30, the light emitting diode The high-luminance luminous flux emitted from the head 21 of 20 with a narrow directivity angle is set so as to be reflected from the center of the luminous flux so as to be dispersed in a wide angle in the entire circumferential direction. As shown in FIG. 3, specifically, the reflector 30 is formed in a substantially conical funnel shape whose top is opposed to the center of the light beam of the light emitting diode 20. The top of the reflector 30 is cut out to form a through-hole 31, and the center of the luminous flux of the light-emitting diode 20 is directed upward along the central axis from the through-hole 31. It is set to be transparent. The reflector 30 is preferably made of a metal such as aluminum which is easy to process and has light reflectivity.

The reflecting member 30 is disposed at a position facing the head 21 of the light emitting diode 20 via the holder member 35. As shown in FIG. 3, the holder member 35 includes a mounting ring 36 fitted externally to the base end of the light-emitting diode 20, and an extra-thin shape extending from the mounting ring 36 to extend the reflecting material 3. And a support wire 37 to which 0 is fixed in advance.

The translucent resin 40 is filled in the mold 11 to a position where it can entirely cover the reflective material 30 located above the light emitting diode 20 in the mold 11. ing. Specifically, the transparent resin 40 is preferably a colorless and transparent epoxy resin.

The light dispersing resin 50 is laminated on the upper surface side of the translucent resin 40 so as to cover the upper surface side of the mold 11. The light-dispersing resin 50 is specifically formed by mixing a light-dispersing material and a coloring agent having a color similar to the light emission color of the light-emitting diode 20 in a light-transmitting resin.

Here, as the translucent resin, an epoxy resin may be used in the same manner as the translucent resin 40 described above. The light dispersing material corresponds to titanium oxide, magnesium oxide, or the like. If a fluorescent dye having a similar color to the color of the light emitted from the light emitting diode 20 is used as the coloring agent, a brighter color can be obtained.

Next, the operation will be described. First, in order to manufacture the display light source device 10, in FIG. 1, the light emitting diodes 20 are arranged in a line at predetermined intervals in the mold 11 and the head of each light emitting diode 20 is arranged. A reflector 30 is arranged at a position facing 21.

Since each reflector 30 is mounted on the light emitting diode 20 via the holder member 35, the reflector 30 can be reliably and easily mounted in a state where the reflector 30 is positioned at an appropriate position. Here, the mounting ring 36 of the holder member 35 is externally fitted to the base end of the light emitting diode 20 so that the mounting operation is easy. Further, since the support wire 37 extends in an extremely fine shape, the light emitting diode is provided. It is not necessary to block the light of 20 degrees.

Subsequently, the mold 11 is filled with a light-transmitting resin 40 so as to completely cover the light-emitting diode 20 and the reflecting material 30, and a light-dispersing resin is further placed on the light-transmitting resin 40. 50 may be stacked. The display light source device 10 manufactured in this manner can be used for various purposes, and is particularly preferably applied to a backlight of an advertising signboard or the like.

Specifically, a plurality of the display light source devices 10 are prepared as a unit, and as shown in FIG. 5, each display light source device 10 is closely arranged in a planar frame A. Install. If an advertisement sheet 60 such as a translucent photographic film is attached on a plane on which the display light source devices 10 are arranged, the advertisement sheet 60 can emit light.

As another example, utilizing the fact that the display light source device 10 has a trapezoidal cross section, as shown in FIG. 6, the display light source devices 10 are arranged closely on the outer peripheral surface of the cylinder. Can also be installed. In such a case as well, by adhering the advertisement sheet 60 on a circumferential surface on which the display light source devices 10 are arranged, the circumferential advertisement sheet 60 can emit light.

In Figs. 3 and 2, when the light-emitting diode 20 lights up, its head 2 1 The high-luminance luminous flux with a narrower directional angle is refracted and reflected by the reflector 30 in a wide angle from the center of the luminous flux in the entire circumferential direction, and is dispersed over a wide area to the bottom side of the mold 11 or the like. In addition, since the through hole 31 is formed in the center of the reflecting material 30, it is possible to prevent the shadow of the reflecting material 30 from being formed on the light dispersion resin 50.

Since the inside of the bottom and side surfaces of the mold 11 is covered with the highly reflective material 12, light reflected in various directions in the mold 11 passes through the translucent resin 40. Spread evenly so that they are averaged out. Here, since the light passes through the translucent resin 40, the luminance does not decrease compared to the case where the light passes through the air, and the entire area of the translucent resin 40 becomes the diffusion light source area.

The light in the mold 11 goes to the upper surface side of the opening, but is uniformly distributed by passing through the light dispersion resin 50, and is radiated to the outside from the entire upper surface of the light dispersion resin 50. . In the light dispersing resin 50, light is diffusely reflected in various directions in a fine manner, so that the light stays longer.

Thereby, uniform surface emission with high brightness can be obtained from the surface of the light dispersion resin 50 covering the opening of the mold 11. Further, since the light dispersing resin 50 is mixed with a colorant similar in color to the emission color of the light emitting diode 20, clearer and brighter light can be obtained.

FIG. 7 shows a second embodiment of the present invention.

In the present embodiment, a mold 11 A is formed into the shape of a letter “T”. As a result, it can be used as it is as a character for light emission display. Of course, the shape of the mold 11 Α is not limited to the Τ of the alphabet, but can be another alphabet or a 7-segment shape representing a number. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 8 shows a third embodiment of the present invention. In the present embodiment, each light emitting diode 20 is disposed in the mold 11 with its head 21 facing downward toward the bottom of the mold 11. The reflective material 30 is in contact with the highly reflective material 12 on the bottom surface of the mold 11 and the base end of the light emitting diode 20 is located at a position separated from the lower surface of the light dispersion resin 50 by a distance below. Have been.

In such a case, high brightness and uniform surface emission can be obtained with low power consumption without deteriorating the excellent characteristics of the light emitting diode 20 at all. In addition, since the base end of the light emitting diode 20 is spaced from the lower surface of the light dispersion resin 50, the shadow of the light emitting diode 20 does not occur on the upper surface of the light dispersion resin 50. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 9 shows a fourth embodiment of the present invention.

In the present embodiment, the light emitting diode 20 is provided without providing the reflecting material 30 at a position facing the head 21 of the light emitting diode 20, and the head 21 is formed on the bottom surface of the form 11. It is disposed in the formwork 11 in a downward direction toward the mold. The base end of the light emitting diode 20 is disposed at a position separated from the lower surface of the light dispersing resin 50 below. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

According to such an embodiment, the light diffusion efficiency in the translucent resin 40 is slightly lower than that of the first to third embodiments by omitting the reflecting material 30. However, the light of the light emitting diode 20 is uniformly refracted and reflected in various directions in the mold 11, averaged in the translucent resin 40, and then passed through the light dispersing resin 50 to the outside. Irradiated. Of course, the structure can be simplified and the device can be easily manufactured by the amount of omitting the reflecting material 30, and the cost can be significantly reduced.

FIG. 10 shows a fifth embodiment of the present invention. In the present embodiment, the light-emitting diode 20 is placed in a state in which the light-emitting diodes 20 are opposed to each other sideways without providing the reflecting material 30 at a position facing the head 21 of the light-emitting diode 20. It is arranged in the form 11. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

Even in such an embodiment, the light of the light emitting diode 20 is

After being uniformly refracted and reflected in various directions within 1 and averaged in the translucent resin 40, it is irradiated to the outside through the light dispersion resin 50. As another example, the light emitting diode 20 may be disposed in the mold 11 with its head 21 facing sideways on the side of the mold 11. Good.

FIGS. 11 to 15 show a sixth embodiment of the present invention.

In the present embodiment, as shown in FIG. 11, it is molded from a flat transparent resin 40 which spreads in a plane direction. On the upper surface side of the translucent resin 40, the light dispersion resin 50 is also laminated in a plate shape.

As shown in FIGS. 12 and 13, the translucent resin 40 and the light dispersing resin

0 is cut into a desired shape such as a T-shape, and a high-reflection material having high light reflection efficiency is applied to the cut surface and the bottom surface on the side of the light-transmitting resin 40.

Vertical holes 41 are formed at predetermined intervals in the translucent resin 40 cut into a desired shape as shown in FIG. 14 (a). The deepest portion 41 a of the vertical hole 41 is formed in a conical shape. In the present embodiment, the light-reflective paint is applied to the deepest portion 41 a to directly serve as the reflecting material 30. I have.

As shown in FIG. 14 (b), each vertical hole 41 of the translucent resin 40 is filled with a translucent resin of the same quality with the light emitting diode 20 inserted. A protective base plate 70 is adhered to the lower surface of the translucent resin 40, and a lead connecting the lead wire 22 of the light emitting diode 20 is provided on the protective base plate 70. The wiring duct member 71 for covering the wiring 13 is attached. In the present embodiment, the light dispersing resin 50 is previously laminated on the upper surface side of the plate-shaped translucent resin 40 without using the mold 11, and this is later formed into a desired shape. Since the light source device 10 is cut into various shapes, it is possible to easily form display light sources 10 of various shapes. Further, the reflector 30 can be easily formed at a predetermined position without using the holder member 35. The display light source device according to the present invention is not limited to the various embodiments described above. For example, the reflecting material 30 is not limited to the illustrated one having a substantially conical shape, and may be, for example, a disk-shaped convex reflecting mirror. Industrial applicability

The display light source device according to the present invention has a longer life than fluorescent lamps and neon sign tubes, and has extremely high visibility and luminance. Equipped with characteristics of light emitting diode such as low power consumption due to high photoelectric conversion efficiency and excellent impact resistance, etc. In addition, uneven brightness of light does not occur, high brightness and uniform surface with low power consumption Light emission can be obtained.

Claims

The scope of the claims

1. In a display light source device (10) capable of obtaining uniform surface light emission using a light emitting diode (20) as a light source,

A mold (11), a light emitting diode (20) disposed in the mold (11), and a position facing the head (21) of the light emitting diode (20). A light-transmitting resin (40) that fills the mold (11) so as to bury the light-emitting diode (20) and the light-reflecting material (30). A light-dispersing resin (50) to be laminated on the upper surface side of the light-transmitting resin (40);

The formwork (11) is open on the upper surface side, and the inside of the bottom surface and the side surface is covered with a highly reflective material (12) having high light reflection efficiency.

The light emitting diode (20) is disposed in the mold (11) with its head (21) facing upward toward the opening of the mold (11), and the reflector (3) 0) is a state in which a high-luminance luminous flux emitted from the head (21) of the light-emitting diode (20) and having a narrow directivity angle is reflected in a wide angle from the center of the luminous flux in all directions. The light emitting diode (20) in the formwork (11) is arranged at a position facing the head (21) of the light emitting diode (20),

The light-transmissive resin (40) is provided in the mold (11) to a position where it can completely cover the reflector (30) located above the light-emitting diode (20). Filled in the frame (1 1)

The light source device for display is characterized in that the light dispersion resin (50) is laminated on the upper surface of the translucent resin (40) so as to cover the upper surface of the mold (11). ( Ten ) .

2. The reflector (30) is formed in a substantially conical shape with its apex facing the center of the light beam of the light emitting diode (20), and extends along the central axis of the reflector (30). The display light source device (10) according to claim 1, characterized in that a through hole (31) through which the center of the light beam is transmitted is formed.

3. The reflecting material (30) is arranged at a position facing the head (21) of the light emitting diode (20) via a holder member (35),

The holder member (35) has a mounting ring (36) fitted externally to the base end of the light emitting diode (20), and the reflecting member extends in an extremely fine shape from the mounting ring (36). The display light source device (10) according to claim 1 or 2, comprising a support wire (37) to which (30) is previously fixed.

4. The light-dispersing resin (50) is formed by mixing a light-dispersing material and a colorant having a similar color to the emission color of the light-emitting diode (20) in the light-transmitting resin (40). The display light source device (10) according to any one of claims 1, 2 and 3 characterized by the above-mentioned.

5. The mold (11) is formed in a narrow width extending in the longitudinal direction, and a plurality of light emitting diodes (20) are arranged in the mold (11) in a line at predetermined intervals. The display light source device (10) according to any one of claims 1, 2, 3, or 4, wherein the display light source device (10) is characterized in that:

6. In a display light source device (10) that can obtain uniform surface light emission using a light emitting diode (20) as a light source,

A mold (11), a light emitting diode (20) disposed in the mold (11), and a light emitting diode (20) embedded in the mold (11) so as to be buried therein. A light-transmitting resin (40) to be filled, and a light-dispersing resin (50) laminated on the upper surface of the light-transmitting resin (40);

The light emitting diode (20) has a head (21) whose head (21) has the formwork (11). ) Is disposed in the mold (11) so as to face the bottom surface or side surface of the light-emitting diode (40) in the mold (11).

-The mold (11) is filled into the mold (11) to a position where it can completely cover the mold (20), and the light-dispersing resin (50) covers the upper surface of the mold (11). A light source device for display (10), which is laminated on the upper surface side of the translucent resin (40).

7. In a display light source device (10) that can obtain uniform surface light emission using a light emitting diode (20) as a light source,

A light-transmitting resin (40) molded in a flat plate shape extending in a plane direction; a plurality of light-emitting diodes (20) embedded in the light-transmitting resin (40) at regular intervals; A reflector (30) disposed at a position in the light-sensitive resin (40) facing the head (21) of each light-emitting diode (20); and an upper surface of the light-transmitting resin (40). A light-dispersing resin (50) to be laminated in advance on the side, and the light-transmitting resin (40) and the light-dispersing resin (50) are cut into a desired shape. Cover with a highly reflective material (1 2) with high light reflection efficiency,

Each of the light emitting diodes (20) has a head (21) directed upward toward the upper surface of the light transmissive resin (40), and the light transmissive resin (4) cut into the desired shape. 0) buried inside,

Each of the reflectors (30) transmits a high-luminance light beam having a narrow directivity angle emitted from the head (21) of each of the light-emitting diodes (20) to a wide angle in a circumferential direction from the center of the light beam. A display light source device characterized in that the display light source device is arranged at a position facing the head (21) of the light emitting diode (20) in the translucent resin (40) in a state where the light is reflected to the head. Ten ) .