Light emitting device package and backlight unit comprising the same
First Claim
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1. A light emitting element package, comprising:
- a lead frame;
a light emitting element on the lead frame;
a molded material combined with the lead frame and having an opening for emitting light generated by the light emitting element;
a reflection structure having an opening that corresponds to the opening of the molded material and contacting the molded material; and
an adhesive layer provided in at least part of a region between the molded material and the reflection structure to fix the reflection structure onto the molded material,wherein the adhesive layer has a first thickness in an area adjacent to the light emitting element and a second thickness in an area away from the light emitting element, and wherein the first thickness is greater than the second thickness.
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Abstract
Disclosed is a light emitting element package having excellent heat radiation performance and high luminance, and a backlight unit including the same. The light emitting element package includes a package including a lead frame, a light emitting element provided on the lead frame, and a molded material combined with the lead frame and having an opening for emitting light generated by the light emitting element, and a reflection structure having an opening corresponding to the opening of the molded material, and contacting the molded material.
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Citations
15 Claims
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1. A light emitting element package, comprising:
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a lead frame; a light emitting element on the lead frame; a molded material combined with the lead frame and having an opening for emitting light generated by the light emitting element; a reflection structure having an opening that corresponds to the opening of the molded material and contacting the molded material; and an adhesive layer provided in at least part of a region between the molded material and the reflection structure to fix the reflection structure onto the molded material, wherein the adhesive layer has a first thickness in an area adjacent to the light emitting element and a second thickness in an area away from the light emitting element, and wherein the first thickness is greater than the second thickness. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12, 13, 15)
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7. A light emitting element package, comprising:
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a lead frame; a light emitting element on the lead frame; a molded material combined with the lead frame and haying an opening for emitting light generated by the light emitting element; and a reflection structure having an opening that corresponds to the opening of the molded material and contacting the molded material, wherein the reflection structure comprises a radial surface formed in a radial shape extending radially from the molded material relative to a direction along which light generated by the light emitting element emits, and wherein the radial surface of the reflection structure forms a first angle with a main emission direction of light generated by the light emitting element, from a point where the radial surface contacts the molded material to a first point away from the molded material, and forms a second angle with the main emission direction from the first point to a second point further away from the molded material compared to the first point, wherein the second angle is greater than the first angle. - View Dependent Claims (8, 9, 10)
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14. A light emitting element package, comprising:
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a lead frame; a light emitting element on the lead frame; a molded material combined with the lead frame and having an opening for emitting light generated by the light emitting element; a reflection structure having an opening that corresponds to the opening of the molded material, and contacting the molded material; a supporting portion provided discretely or continuously on the molded material to fix the reflection structure onto the molded material; and an adhesive layer provided in at least part of a region between the molded material and the reflection structure, and having a first thickness in an area adjacent to the light emitting element and a second thickness in an area away from the light emitting element, wherein the first thickness is greater than the second thickness.
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Specification