JPH0990355A - Light source for liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source for a liquid crystal display device having little heat generation and keeping the intensity distribution of the light source uniform by positioning/fixing plural LEDs on the basis of the same plane and fixing them side by side so as to become symmetric for translation in the same plane. SOLUTION: A LED light source is stuck to/lined up so that the radiating surfaces of plural LEDs 140-145 are closely adhered to a transparent member 148. The transparent member 148 is a planar transparent body whose at least tight contact surface 148A on the side closely adhered to the radiating surfaces of plural LEDs 140-145 is formed planar and e.g. glass and transparent plastic are used as the material. Lead frame 147 of the LEDs 140-145 is bent down so as to be right angle to the tight contact surface 148A and connected to a substrate 146. The substrate 146 is connected to a light source control part. Parallel beams radiated from the respective LEDs 140-145 are tansmitted through the transparent member 148, the mutual parallelism is kept, heat generation is little and light intensity distribution becomes uniform.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source for a liquid crystal display device having a plurality of LEDs arranged side by side as a light source.

[0002]

2. Description of the Related Art There is a projector or the like for forming a video image by displaying an image by inputting a video signal into a liquid crystal panel and projecting transmitted light of an LCD by a light source onto a color paper through an optical system. . Since a conventional projector requires a large amount of light, an incandescent light bulb or the like is used as a light source of the LCD, and in particular, a halogen lamp is often used.

There is also a method of using an LED as a light source for a liquid crystal display device. Conventionally, when a high-brightness reflective LED with a built-in reflecting mirror is attached to a substrate, a plurality of LEDs are mounted by abutting the back side of the reflecting mirror to the substrate as a reference surface of the LED and soldering. It was attached to the board.

[0004]

However, LCDs
When an incandescent light bulb is used as the light source, a large amount of heat is generated, the polarizing plate of the LCD rapidly deteriorates, and a cooling device needs to be separately attached, which makes it difficult to downsize the entire device.

On the other hand, when an LED is used as a light source of an LCD, it does not generate a large amount of heat like an incandescent light bulb, but when a plurality of high-brightness reflective LEDs are used as an LCD light source, the following is used. New problems arise. That is, in the reflective LED, the direction in which light is emitted changes very critically depending on the direction of the reflecting mirror. Therefore, the strength of the board itself to be mounted, the positional accuracy when soldering, and the accuracy when mounting the board on a target member are required with high accuracy. Therefore, the intensity distribution of light may become uneven, and in such a case, the unevenness of the light source overlaps with the video image projected on the image plane, so that the LCD
It becomes an unsuitable backlight.

In view of the above facts, an object of the present invention is to provide a light source for a liquid crystal display device which has a small amount of heat generation and has a uniform light intensity distribution of the light source.

[0007]

In order to achieve the above object, the invention of claim 1 provides a plurality of LEDs and a plurality of L's.
A support means configured to position and fix the ED with respect to the same plane as a reference, and the plurality of LEDs are arranged and fixed by the support means so as to be symmetrical with respect to the parallel movement of the same plane. It is characterized by

According to the first aspect of the present invention, a plurality of LEDs are positioned and fixed on the support means with reference to the same plane, and the LEDs are arranged so as to be symmetrical with respect to the parallel movement of the same plane. Therefore, the emitted lights of the LEDs are kept parallel to each other, and are suitable as a light source for a liquid crystal display device. In this way, since the emitted lights of a plurality of LEDs are aligned in parallel with high accuracy, it is possible to realize a light source with a small amount of heat generation and a uniform light amount.

According to a second aspect of the present invention, a chip having a light emitting surface is formed by embedding the chip in a central portion, and one surface is a reflecting surface having the light emitting surface of the chip or its vicinity as a focal point. A transparent resin molded member having the other opposite surface as a flat radiation surface, and a reflecting mirror which is provided on the reflection surface, reflects light emitted from the chip as parallel light, and outputs the light from the radiation surface. In a light source for a liquid crystal display device in which a plurality of LEDs each of which is arranged and fixed,
A transparent member having two flat surfaces, and the plurality of L
It is characterized in that the radiation surface of the ED is bonded and arranged so as to be in close contact with the flat surface of the transparent member.

In the invention of claim 2, the light emitted by the chip of each LED is reflected by the reflecting mirror,
The parallel light is output from the emission surface, passes through the transparent member, and is emitted to the outside. Here, since the planar emission surface of each LED is adhered and arranged so as to be in close contact with the planar transparent member, the light emitted from each LED becomes parallel light as a whole. . By this, each LE
The emitted light of D can be uniformly aligned with high accuracy, and a light source with a small amount of heat generation and a uniform light amount can be realized. Further, the strength of the whole is improved, and the light source for liquid crystal display of the present invention can be accurately attached to other members. In addition,
As the transparent member, for example, glass or transparent plastic can be used.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present embodiment will be described below with reference to the drawings.

(Printer Processor) The configuration of the printer processor 10 of the present embodiment will be described with reference to FIGS. 1 and 2. The printer processor 10 whose outside is covered with a casing 12 performs a process of developing, fixing, rinsing, and drying a printer unit 58 that exposes the printing paper of the main print and the sub-print, and the exposed printing paper. And a processor unit 72.

First, the structure of the printer unit 58 will be described.
A work table 14 protruding from the casing 12 to the left in FIG. 1 is installed in the printer processor 10, and a negative film 16 is provided on the upper surface of the work table 14.
There are arranged a negative carrier 18 for setting and a keyboard 15 for the operator to input commands, data and the like.

A main exposure light source section 36 is installed below the work table 14. A light source 38 is installed in the main exposure light source section 36, and the light emitted from the light source 38 is
Color correction filter (hereinafter, Color-Correction Filter: C
The negative film 16 set on the negative carrier 18 is reached via a C filter 40) and a diffusion tube 42.
The CC filter 40 has C (cyan), M (magenta), Y
It is composed of three sets of (yellow) filters, and each filter operates under the control of the CC filter control unit 39,
The light emitted from the light source 38 can appear and disappear on the optical axis.

An arm 44 is formed on the downstream side of the negative carrier 18 (upper side in FIG. 1).
A main exposure optical system 46 and a sub-printing section 22 that exposes sub-prints such as index prints are provided therein.

A half mirror 43 is arranged at the lowermost part of the main exposure optical system 46, and the light transmitted through the negative film 16 set on the negative carrier 18 reaches it. An exposure lens 48 for changing the magnification of an image to be exposed and a black shutter 50 for blocking the exposure light are sequentially arranged on the downstream side of the optical path passing through the half mirror 43. A mirror 51 that reflects the exposure light in a substantially right-angled direction is arranged on the downstream side of the black shutter 50, and the exposure light reflected by the mirror 51 is applied to a photographic printing paper 54 set in an exposure chamber 52. The photographic paper 54 is thus exposed.

On the other hand, a photometric lens 45 for changing the magnification of the photometric image is arranged on the downstream side of the optical path reflected by the half mirror 43, and on the downstream side of the photometric lens 45, a half A mirror 47 is arranged. A scanner 108 composed of an image sensor or the like is arranged in the direction in which light is reflected by the half mirror 47.
The scanner 108 is connected to an image signal processing unit 102 that performs predetermined image processing on the image data of each frame of the negative film 16 read by the scanner 108.

A simulator 104 as an image display device is connected to the image signal processing unit 102, and the simulator 104 displays images of each frame of the negative film 16 on the basis of set conditions. A print simulation image is displayed.

An image memory 106 for storing image data is connected to the image signal processing unit 102, and the image signal processing unit 102 stores the image data of each frame of the negative film 16 read by the scanner 108. It is stored in the image memory 106.

A negative density measuring section 56 for measuring the image density of each frame of the negative film 16 is provided on the downstream side of the optical path passing through the half mirror 47, and the negative density measuring section 56 has an image sensor. Scanner 56B composed of the like and the negative film 1 read by the scanner 56B
Negative density measuring device 56A for measuring the image density of each frame of 6
And are installed.

In the sub-printing section 22, a light emitting diode (hereinafter referred to as B-LED) 25 for emitting a blue component of light and a light emitting diode for emitting a red component (hereinafter referred to as R-) are used as light sources for exposure of the index print. Called LED)
26, and a light emitting diode that emits a green component (hereinafter,
A G-LED) 27 is provided, and the operation of these is controlled by the light source controller 24. B-LED2
5 is arranged on the exposure optical axis X, a dichroic mirror 28 is arranged on the downstream side in the traveling direction of the light emitted from the B-LED 25, and the optical axis of the red light emitted from the R-LED 26, and The optical axis of the green light emitted from the G-LED 27 is aligned with the exposure optical axis X. Here, each of the LEDs 25, 26, and 27 applied in the present embodiment is an LED light source including a plurality of high-brightness reflective LEDs, and the detailed configuration will be described later.

At the downstream side of the dichroic mirror 28 in the direction of travel of light, the end of the optical path (a position that does not affect the image)
A light source light sensor 29 for measuring the light amount of the light emitted from the light source is arranged in the direction in which the mirror 30 reflects light.

On the downstream side of the arrangement position of the mirror 30,
The liquid crystal panel 31 is arranged on a surface perpendicular to the exposure optical axis X. On the image display surface 31A of the liquid crystal panel 31, a large number of pixels capable of displaying white, black and intermediate colors thereof are regularly arranged by electric means, and further,
The liquid crystal panel 31 can express 256 gradations. A liquid crystal panel driver 32 that drives the liquid crystal panel 31 is connected to the liquid crystal panel 31, and a sub control unit 23 that monitors and controls various processing states in the sub printing unit 22 is connected to the liquid crystal panel driver 32. There is. The sub control unit 23 includes a CPU, a RAM, and a RO (not shown).
M, an input / output controller, etc., and is connected to the above-mentioned image memory 106 via the input / output controller.

The sub-control unit 23 reads out the image data of each frame of the negative film 16 stored in the image memory 106, forms one index image data in which the frame images are arranged according to a predetermined rule, and forms one index image data. A predetermined number of frames out of the index image data of the case, 5 as an example
An image corresponding to the image data for one frame (for one column) is displayed on the liquid crystal panel 31 by the liquid crystal panel driver 32. In addition, among the image data for one column, R color, G color,
It is also possible to display on the liquid crystal panel 31 an image corresponding to the image data of only the respective color components of B color.

On the downstream side of the arrangement position of the liquid crystal panel 31, a mirror 34 is provided at the end of the optical path (a position that does not affect the image).
Is disposed, and a transmitted light amount sensor 33 for measuring the amount of light transmitted through the liquid crystal panel 31 is disposed in the direction in which light is reflected by the mirror 34.

On the downstream side of the arrangement position of the mirror 34,
An exposure lens 35 for changing the magnification of the image of the sub-print to be exposed is arranged, and an index print image displayed on the liquid crystal panel 31 by the exposure lens 35 and projected by exposure light is provided on a photographic paper 54 by a predetermined amount. An image is formed at a magnification.

The light source control unit 24, the light source light amount sensor 29, and the transmitted light amount sensor 33 are further connected to the sub control unit 23, and the sub control unit 23 measures R measured by the light source light amount sensor 29. , G, and B, the appropriate light amount correction amount is calculated based on the light amount values, and the B-LED 25,
The light source control unit 24 corrects the amount of light emitted from the R-LED 26 and the G-LED 27. Similarly, the sub-control unit 23 controls the liquid crystal panel driver 32 based on the transmitted light amount value measured by the transmitted light amount sensor 33 to adjust the density of the image displayed on the liquid crystal panel 31 so as to obtain an appropriate transmitted light amount. I do.

Like the sub control unit 23, the main control unit 20 for controlling and monitoring the entire printer processor 10 is provided.
Is provided below the exposure chamber 52. The main control unit 20 includes a CPU (not shown), a RAM, a ROM, an input / output controller, and the like. The main control unit 20 includes:
The above-described CC filter control unit 39 and the negative density measuring device 56
A, the image signal processing unit 102 and the sub control unit 23 are connected, and monitor and control the operation of each of these components.

A mounting portion 60 is provided at a corner portion between the upper right side surface of the arm 44 and the upper surface of the casing 12. The mounting portion 60 is a paper for winding the photographic paper 54 around the reel 62 in a layered manner. The magazine 64 is mounted.

A roller pair 66 is disposed near the mounting portion 60, and holds the photographic printing paper 54 in a horizontal state to expose the exposure chamber 52.
Transport to The photographic paper 54 is placed on the roller 6 before the arm 44.
It is wound around 7, turned 90 degrees, and hangs down. A first stock unit 69 is provided between the roller 66 and the roller 67 to guide and stock the photographic paper in a substantially U-shape.

A roller 68 is provided below the exposure section of the exposure chamber 52.
A, 68B, and 68C are arranged, and the printing paper 54 on which the image of the negative film 16 is printed in the exposure chamber 52 is turned by approximately 90 degrees by each of the rollers 68A, 68B, and 68C, and is turned to a processor unit 72 described later. Conveyed.

A cutter 71 is arranged on the downstream side of the roller 68A, and the cutter 71 cuts the rear end of the printing paper 54 after the exposure processing. The printing paper 54 that has been cut by the cutter 71 and left in the exposure chamber 52 can be rewound into the paper magazine 64 again. Also, the roller 68
A between the printing paper 54 and the roller 68B.
There is provided a second stock portion 73 for guiding and stocking in a substantially U shape. In the second stock unit 73,
By stocking the printing paper 54, the printer unit 58
And the difference in processing time between the processor unit 72 and the processor unit 72 is absorbed.

Next, the configuration of the processor section 72 will be described. The processor section 72 is provided with a color developing processing tank 74 storing a color developing processing liquid, a bleach-fixing processing tank 76 storing a bleach-fixing processing liquid, and a plurality of rinsing processing tanks 78 storing a washing processing liquid. The photographic printing paper 54 is sequentially transported through the color developing tank 74, the bleach-fixing tank 76, and the plurality of rinsing tanks 78, so that the developing, fixing, and rinsing processes are sequentially performed. Photographic paper 54 that has been washed
Is transported to the drying section 80 adjacent to the rinsing tank 78,
In the drying section 80, the photographic paper 54 is wound around rollers and exposed to high-temperature air to be dried.

The photographic printing paper 54 is nipped by a pair of rollers (not shown), and is discharged from the drying section 80 at a constant speed after the completion of the drying process. A cutter unit 84 is provided on the downstream side of the drying unit 80, and the cutter unit 84 has a cut mark sensor 86 for detecting a cut mark applied to the photographic printing paper 54.
A paper density measuring unit 90 for measuring the density of the printing paper 54 and a cutter 88 for cutting the printing paper 54 are installed. The cut mark sensor 86, the paper density measuring unit 90, and the cutter 88 are respectively the main control unit 20.
It is connected to the. In the cutter unit 84, the photographic printing paper 54 is cut by the cutter 88 for each image frame, and the photographic print is completed.

The completed photographic prints are discharged to the sorter unit 92, sorted in the sorter unit 92 and subjected to a predetermined inspection work. By this verification work, after defective prints such as so-called out-of-focus images are extracted, normal photographic prints are returned to the customer together with the negative film.

(LED light source) Here, the LEDs 25, 2
The detailed configurations of 6 and 27 will be described.

In FIGS. 3A to 3C, the LED 25,
High brightness L for blue, red, and green that composes 26 and 27
A schematic configuration diagram of the ED 11 is shown.

A chip 110, which is a light emitting element, is a rectangular block, and electrodes 112 and 114 are provided at the centers (intersection points of diagonal lines) of the upper and lower surfaces (300 × 300 μm) of the rectangular block. The lead frames 118, 12 are connected to the electrodes 112, 114 via the gold wire 16 (on the lower surface side) or directly.
0 is connected, and a current is passed between the lead frames 118 and 120, so that the chip 110 has a structure in which the lower surface emits light.

The chip 110 and the gold wire 116 and the lead frames 118 and 120 connected thereto are embedded in a main body 122 molded of transparent resin (epoxy resin). At this time, the chip 110 is positioned and embedded in the center.

The body 12 facing the light emitting surface of the chip 110
The surface of 2 has a parabolic shape, and the reflecting mirror 12 is attached to this parabolic surface.
4 is vapor-deposited. The inner peripheral surface side of the reflecting mirror 124 is a parabolic mirror 124A having a single focus position.
The chip 110 is located at the focal position of the parabolic mirror 124A of the reflecting mirror 124. As a result, the chip 110 is
Most of the light emitted from the parabolic mirror 124A is received by the parabolic mirror 124A and reflected as parallel light.

The surface of the main body 122 opposite to the reflection surface is a flat radiation surface 122B, and the parabolic mirror 124A is provided.
It is used as the output surface of the parallel light reflected from.

Next, the high-brightness reflective LED 11 having the above structure.
B-LED constituted by arranging and fixing 1
25, the R-LED 26, and the G-LED 27 (hereinafter collectively referred to as “LED light source”) will be described with reference to FIG.

As shown in FIG. 4, the present LED light source is constructed by adhering and arranging a plurality of LEDs so that the emitting surfaces of the LEDs are in close contact with the transparent member 148. The transparent member 148 is a plate-shaped transparent body in which at least the contact surface 148A that is in contact with the emitting surface of the LED is formed in a flat shape, and glass, transparent plastic, or the like can be used as the member.

In this LED light source, the LEDs 140 to LE are used.
A total of 6 LEDs of D145 are arranged in a line. For example, B-LED25 is a blue LED, R-LED26
Is a red LED, and G-LED27 is a green LE
Six Ds are arranged in each row, six each. It should be noted that the number of LEDs included in one LED light source and how to arrange them are not limited to this example, and can be arbitrarily changed.

Like the lead frame 147, the lead frames of the LEDs 140 to 145 are bent at right angles to the contact surface 148A and connected to the substrate 146. The substrate 146 is connected to the light source controller 24 and controlled.

When manufacturing the LED light source having the structure shown in FIG. 4, a single LED is bonded to the transparent member 148.
L using an LED unit composed of multiple LEDs
You may manufacture an ED light source. For example, L shown in FIG.
The ED light source is an LED unit 15 consisting of three LEDs.
0 and 151 are closely adhered and adhered to the transparent member 148, and the lead frame 147 is connected to the substrate 146.

Next, the operation of the present embodiment will be described. First, the exposure process of the main print in the printer unit 58 of the printer processor 10 will be described. Black shutter 5
With 0 closed, the negative film 16 on which the image to be printed is recorded is set on the negative carrier 18, the light source 38 is turned on, and the density of the image of the negative film 16 formed by the light transmitted through the negative film 16 is adjusted. Negative density measuring unit 56
To measure. Based on the measured image density of the negative film 16, the main control unit 20 sets appropriate exposure conditions (for example, the amount of each filter of the filter unit 40 inserted). Next, the black shutter 50 is opened, and the image on the negative film 16 is exposed on the photographic printing paper 54 based on the set exposure conditions.

Next, as the exposure processing of the sub print in the printer section 58, a case where the sub print section 22 exposes a frame image similar to the main print will be described.
The negative film 16 on which the image to be printed is recorded is set on the negative carrier 18, the light source 38 is turned on, and the negative film 1 is imaged by the light transmitted through the negative film 16.
The image 6 is read by the scanner 108, and the read image data is read by the image signal processing unit 102.
Store in 6. By the sub-control unit 23, the image memory 106
The image data is read from the image data, the image corresponding to the blue image is displayed on the liquid crystal panel 31, and the B-LED 25 is turned on so that the blue component of the image data (hereinafter referred to as the blue image) is formed on the photographic paper 54. The light is turned on for a time corresponding to the set exposure conditions. Thus, the photographic paper 54 is exposed to the blue image of the image data. Thereafter, similarly, the red component (red image) and the green component (green image) of the image data are displayed on the liquid crystal panel 31, and the R-LED 2 is displayed.
6. The G-LED 27 is turned on to expose the red and green images of the image data on the photographic printing paper 54. As a result, the image to be printed is exposed on the photographic printing paper 54.

Next, the processing in the processor section 72 will be described. After the image to be printed is exposed on the printing paper 54 as described above, the printing paper 54 is processed by the processor unit 72.
The color developing processing tank 74, the bleach-fixing processing tank 76, and the plurality of rinsing processing tanks 78 are sequentially conveyed, so that the developing, fixing, and washing processes are sequentially performed on the printing paper 54.
The photographic printing paper 54 that has been washed with water is conveyed to the drying unit 80 and is dried with high temperature air. The dried photographic printing paper 54 is conveyed to the cutter unit 84, cut by the cutter 88 for each image frame, and becomes a photographic print. Then, the photographic prints are discharged to the sorter unit 90 and sorted in the sorter unit 90.

Here, the operation of the LED light source will be described. Note that light emission of the LEDs 140 to 145 will be described using the LED 111 in FIG.

When a current flows between the electrodes 112 and 114,
The chip 110 emits light and is output from the light emitting surface. Since the parabolic mirror 124A of the reflecting mirror 124 faces the light emitting surface and the chip 110 is at the focal position, the light reflected by the parabolic mirror 124A becomes parallel light and is emitted from the output surface. Output.

Here, since the LEDs 140 to 145 are adhered so that their planar emission surfaces are in close contact with the contact surface 148A of the transparent member 148, the parallel light emitted from each LED is transparent. After passing through 148, they become parallel to each other, and collimated light is emitted as a whole. Therefore,
The emitted lights of the LEDs 140 to 145 can be aligned in a certain direction with high accuracy. By improving the plane accuracy of the emitting surface of the transparent member 148 and the mounting accuracy of the LED, the parallelism can be maintained at a higher level of accuracy.

Further, since the transparent member 148 is a solid such as plate glass and all the LEDs are adhered to the same transparent member 148, the strength of the whole is improved, and it can be mounted accurately even when mounted on other members. become able to.

By arranging a plurality of LEDs side by side in this way, a light source with low heat generation can be realized, and a cooling device or the like is unnecessary, so that the printer processor using this LED light source can be miniaturized. Moreover, individual LEDs
By making the light emitted from the light parallel, the light intensity distribution becomes uniform, and a light source with no unevenness can be realized.

The embodiment of the present invention has been described above, but the embodiment is not limited to the above example. Since it is possible to obtain parallel light and high-intensity light with no unevenness of light amount for all three primary colors, it can be used not only as a display indicator but also as a light source for color adjustment that requires a color image. For example, it can be applied to a light source for equipment such as a light source for a large image panel, a white light source for exposing a transmission image, a three-color light source for exposing using a color-separated image, or the like, which has a great influence on uneven light quantity Become.

Further, the transparent member 148 for fixing a plurality of LEDs is not limited to the shape, material and bonding method as in the above example, but a member is formed and bonded according to the shape of the emitting surface of the LED. Is also good.

Further, in the above example, a high brightness reflective LE
Although the light source for the liquid crystal display device is configured by using D, resin lens type LEDs may be arranged and fixed to the supporting member. At this time, a lens system that makes the emitted light of each resin lens type LED parallel light may be arranged in front of each LED.

[0058]

As described above, according to the invention of claim 1, since the LEDs are arranged so as to be symmetric with respect to the parallel movement of the same plane, the emitted lights of the LEDs are mutually emitted. The effects that the parallelism is maintained, the amount of heat generation is small, and the light intensity distribution is uniform are obtained.

According to the second aspect of the present invention, since the planar transparent member is adhered to the emitting surfaces of the plurality of high-brightness reflective LEDs so as to be in close contact with each other, the emitted light of each LED is aligned in a certain direction with high accuracy. Further, the heat generation amount is small and the light intensity distribution is uniform, and further effects such as improvement in overall strength and mounting accuracy can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a printer processor according to the present embodiment.

FIG. 2 is a block diagram showing a configuration of a printer unit in the printer processor according to the present embodiment.

FIG. 3A is a side sectional view of a red and green high-brightness reflective LED, and FIG. 3B is a red and green high-brightness reflective LE.
FIG. 3C is a plan view of the vicinity of a chip used for D, and FIG. 6C is a plan view of a chip used for high-intensity reflective LEDs for red and green.

FIG. 4 is a block diagram showing a configuration of an LED light source configured by arranging individual LEDs.

FIG. 5 is a block diagram showing a configuration of an LED light source configured by arranging LED units each including a plurality of LEDs as one unit.

[Explanation of symbols]

 10 chips (high brightness reflective LED) 148 transparent member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Ogasawara 1-324 Uetake-cho, Omiya-shi, Saitama Fuji Photo Optical Co., Ltd. (72) Toshihiko Narita 798, Miyadai, Kaisei-cho, Ashigarakami-gun, Kanagawa Fujishi Photo Within Film Co., Ltd.

Claims (2)

[Claims] 1. A plurality of LEDs, and a supporting means configured to position and fix the plurality of LEDs with respect to the same plane as a reference, wherein the plurality of LEDs with respect to parallel movement of the same plane. A light source for a liquid crystal display device, which is arranged and fixed by the supporting means so as to be symmetrical with each other. 2. A chip having a light emitting surface, and a chip formed by embedding the chip in a central portion, one surface being a light emitting surface of the chip or a reflecting surface having its vicinity as a focal point, and the other surface facing each other. A plurality of LEDs each having a transparent resin molding member having a flat emission surface, and a reflection mirror provided on the reflection surface for reflecting light emitted from the chip as parallel light and outputting the parallel light. A light source for a liquid crystal display device, wherein at least one surface is a flat surface, and the light emitting surfaces of the plurality of LEDs are bonded and arranged so as to be in close contact with the flat surface of the transparent member. A light source for a liquid crystal display device.