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Light guide member, flat light source device, and display device

A flat light source and optical waveguide technology, applied in the field of optical waveguide components, can solve problems such as loss of function, and achieve the effects of reducing color unevenness, reducing restrictions, and high color rendering characteristics

Inactive Publication Date: 2008-12-24
RESONAC HOLDINGS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the following cases, using a resin plate in which such inorganic particles are dispersed is used as an optical waveguide plate required to have sufficient light propagation characteristics, since the inorganic particles become a source of dispersion, light propagation in the horizontal direction is prevented, thereby The function of the optical waveguide to diffuse the light emitted by each LED light source is lost

Method used

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  • Light guide member, flat light source device, and display device
  • Light guide member, flat light source device, and display device
  • Light guide member, flat light source device, and display device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0114] 8 mg of the iridium complex of the above formula (II) (product name: NLD-SL-1101, manufactured by SANYU REC CO.LTD) was dissolved in 10 g of epoxy resin and degassed. The iridium complex is then filled in a metal mold composed of an aluminum alloy capable of producing cylindrical pellets with a diameter of 6 mm and a thickness of 1 mm, and heated at 100°C for two hours and then at 130°C for three hours , to create particles that emit red light.

[0115] Similarly, particles capable of emitting green light were produced by using 30 mg of the iridium complex of the above formula (I) and 10 g of epoxy resin. In addition, particles consisting only of epoxy resin without iridium complexes were produced.

[0116] Then, on a square aluminum base plate having a side length of 50 mm and a thickness of 1 mm, a white insulating layer having a thickness of 40 μm was formed. In addition, four GaN-type blue LED bare-chip light sources are linearly arranged with a grid pitch of 10mm...

example 2

[0124] Circular gasket made of polypropylene with 6 mm outer diameter and 2 mm thickness with a hole of 5 mm inner diameter, wherein a double-sided adhesive tape of the polypropylene type is bonded to the back of the gasket, with the center of the light source corresponding to the gasket hole A circular spacer was bonded to the periphery of each blue LED bare-chip light source on the substrate manufactured in Example 1 capable of lighting 25 light sources in a centered manner.

[0125] An iridium complex capable of emitting red light was manufactured by dissolving 4 mg of the iridium complex of the above formula (II) into 10 g of epoxy resin (product name manufactured by SANYU REC CO.LTD.: NLD-SL-1101) and degassing. Unhardened resin solution. Furthermore, an uncured resin solution capable of emitting green light was produced by dissolving 15 mg of the iridium complex of the above formula (I) into 10 g of epoxy resin. The above-mentioned unhardened resin solution and the unha...

example 3

[0128] Each of the substrates manufactured in Example 1 and Example 2 was set and fixed to an aluminum frame having a front face opened out of a bottom surface of 60 mm in length by 60 mm in width and having a depth of 30 mm. A reflective layer in which white reflective films (product name: Lumirror 60L (registered trademark), manufactured by Toray Industries, Inc.) were bonded to each other was formed on the inner face of the frame except for the opening portion.

[0129] In addition, a diffusion sheet (polycarbonate, product name: PC9391-50HL, manufactured by TEIJINCHEMICALS LTD) was fixed to the front face of the opening portion of the aluminum frame to manufacture a planar light source device corresponding to FIGS. 3-D and 4 .

[0130] For a planar light source device, a current of 220mA is applied to a series line of four LEDs on which a red light-emitting area and a green light-emitting area are formed, and a current of 60mA is applied to it to form a separate resin area ...

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Abstract

A plurality of luminescent devices (1) that emit a light of a violet to blue color are arrayed on a substrate (3), and a light guide member (2) is disposed upward thereof that includes a first area (2c) that consists of a transparent resin and composed of the resin independently, a second area (2a) in which there is dissolved in the resin a luminescent substance that generates a second color by an excitation due to a light emitted from the luminescent device (1) of the first color, and a third area (2b) in which there is dissolved in the resin a luminescent substance that generates a third color by an excitation due to a light emitted from the luminescent device (1) of the first color.

Description

[0001] Cross References to Related Applications [0002] This application is based upon an application filed under 35 U.S.C. §111(a) pursuant to 35 U.S.C. §119(e)(1), requiring a provisional application filed under 35 U.S.C. §111(b) on January 4, 2006 Priority of 60 / 755,792. technical field [0003] The present invention relates to an optical waveguide member for a planar light source device, a planar light source device using the same, and a display device having the planar light source device used, for example, as a backlight for a liquid crystal display. Background technique [0004] In recent years, the luminous efficiency of light emitting diode devices has been greatly improved, and the application of light emitting diode devices to lighting has progressed. Specifically, in the case of using a light emitting diode device as a backlight for a liquid crystal display, satisfactory reproduction color gamut and high-speed response can be achieved, and high-quality display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V9/08G02F1/13357F21S2/00F21Y101/02F21V8/00F21V9/40G02F1/1335
CPCG02B6/0035G02B6/0068G02F1/133603G02F1/133606G02F1/133609G02F1/133614H01L25/0753H01L33/504H01L2924/0002H01L2924/00
Inventor 内条秀一时田孝二
Owner RESONAC HOLDINGS CORPORATION
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