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Lighting unit, display and lighting device

A light-emitting unit and light source technology, applied in lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as difficult white light, achieve the effects of preventing damage, improving reliability, and realizing practical use

Active Publication Date: 2017-05-03
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to stably obtain uniform white light by using the above method of synthesizing light of various colors

Method used

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  • Lighting unit, display and lighting device
  • Lighting unit, display and lighting device
  • Lighting unit, display and lighting device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] 1. First Embodiment (light emitting unit: example of a holding member that supports the wavelength conversion member in the extending direction of the wavelength conversion member)

[0039] 2. Second Embodiment (light emitting unit: example of a holding member that supports the wavelength conversion member at a part of the wavelength conversion member)

[0040] 3. Third Embodiment (Light-emitting unit: Example in which the holding member includes a storage portion for a wavelength conversion member (first storage portion) and a storage portion for a light source (second storage portion))

[0041] 4. Modification 1 (example in which the first housing part includes a tapered part)

[0042] 5. Modification 2 (example in which the second housing part includes a reflection part)

[0043] 6. Application examples (displays and lighting devices)

[0044] 7. Examples

[0045] [first embodiment]

[0046] figure 1 An overall configuration of a light emitting unit (light emitt...

no. 2 example

[0069] A light emitting unit (light emitting unit 2 ) according to a second embodiment of the present technology includes Figure 4 Retaining member 70 is shown. In the holding member 70 , the lock portions (the first lock portion 63A and the second lock portion 64A) provided at a part of the top surface portion 61 and the bottom surface portion 62 support the wavelength conversion member 30 . Except for this point, the light emitting unit 2 is the same in configuration, function and effect as the light emitting unit 1 of the first embodiment described above.

[0070] Figure 5A to Figure 5C Each shows a state where the wavelength conversion member 30 is fixed to the holding member 70 . FIG. 5A shows a plan configuration viewed from the light incident surface 20A of the light guide plate 20, FIG. 5B shows a cross-sectional configuration taken along line B-B of FIG. 5A, and Figure 5C A cross-sectional configuration taken along line C-C of FIG. 5A is shown.

[0071] The fir...

no. 3 example

[0078] A light emitting unit (light emitting unit 3 ) according to a third embodiment of the present technology includes Figure 10 Retaining member 80 is shown. The holding member 80 includes a first storage portion 81 provided to hold the wavelength conversion member 30 , and a second storage portion 82 provided to hold the light source 10 . The second housing portion 82 is integrated with the first housing portion 81 . Except for this point, the light emitting unit 3 is the same in configuration, function and effect as the light emitting unit 2 of the second embodiment described above.

[0079] Similar to the holding member 70 , the first housing portion 81 includes: a top surface portion 61 , a bottom surface portion 62 , a first locking portion 63A, and a second locking portion 64A. Figure 10 The middle portion of the holding member 80 is shown, and the illustration of the top portion 61 is omitted. The second receiving portion 82 is disposed adjacent to the first rec...

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Abstract

Provided are a light emitting unit employing a wavelength conversion member that can be put into practical use, and a display and a lighting device including the light emitting unit. The light emitting unit includes: a light source; an optical part including a light incident surface facing the light source; a wavelength conversion member provided between the light source and the light incident surface; and a holding member that holds the The wavelength converting member is held in position between the light source and a light incident surface of the optical component.

Description

technical field [0001] The present technology relates to a light emitting unit suitable for a planar light source, and to a display and a lighting device including the light emitting unit. Background technique [0002] Light emitting diodes (light emitting diodes, LEDs) are used as backlights of liquid crystal displays and light sources of lighting devices and the like. Such backlights and the like typically employ a method of synthesizing red, green, and blue LED light to produce white light. However, by using the above method of synthesizing light of various colors, it is difficult to stably obtain uniform white light. Therefore, there have been proposed methods in which monochromatic, for example, blue LED light is wavelength-converted by using fluorescent pigments or fluorescent dyes (see, for example, Japanese Patent Nos. 3116727 and 3114805). Contents of the invention [0003] However, the above-mentioned method for wavelength conversion of blue LED light has not b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V9/10F21V17/18G02F1/13357F21Y115/10F21V9/40
CPCF21S8/00F21V17/18G02F1/133615F21Y2115/10G02F1/133614F21V9/00G02B6/0026
Inventor 中村知晴
Owner SONY CORP