Led die, method for manufacturing the led die and automobile lamp having the led die
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCHIH-CHEN LAI
Life of this patent
Estimating the term…
Abstract
An LED die includes a transparent substrate, an N-type layer, an active layer and a P-type layer successively arranged on a first surface of the transparent substrate. A part of the N-type layer is exposed. The LED die further includes an electrode structure arranged on the P-type layer and the exposed surface of the N-type layer. A light outputting surface is formed on a second surface of the transparent substrate. The light outputting surface is a smoothly concave and arc-shaped surface. An LED automobile lamp with the LED die and a method for manufacturing the LED die are also provided. The light outputting surface of the LED die directly faces a lens of the LED automobile lamp.
Claims15
A light emitting diode (LED) die, comprising:
- a transparent substrate comprising a first surface and a second surface opposite to the first surface, a light outputting surface being formed on the second surface, the light outputting surface having a smoothly concave and arc-shaped configuration;
- an N-type layer, an active layer , and a P-type layer sequentially arranged on the first surface of the transparent substrate, a part of the N-type layer being exposed, an electrode structure electrically connecting with the N-type layer and the P-type layer respectively.
An LED automobile lamp, comprising:
- a light source comprising:
- a transparent substrate comprising a first surface and a second surface opposite to the first surface, a light outputting surface being formed on the second surface, the light outputting surface having a smoothly concave and arc-shaped configuration;
- an N-type layer, an active layer , and an P-type layer sequentially formed on the first surface of the transparent substrate, a part of the N-type layer being exposed, an electrode structure electrically connecting with the N-type layer and the P-type layer respectively;
- and
- a lens spaced from the light source, the light outputting surface facing the lens.
A method for manufacturing an LED die comprising steps:
- providing a semi-finished LED die comprising a transparent substrate with a first surface and a second surface opposite to the first surface;
- sequentially forming an N-type layer, an active layer, and an P-type layer on the first surface of the transparent substrate;
- etching the second surface of transparent substrate by laser to form a light outputting surface, the light outputting surface having a smoothly concave and arc-shaped configuration;
- removing common parts of the active layer and the P-type layer to expose a part of the N-type layer;
- and
- disposing an electrode structure on exposed N-type layer and the p-type layer to complete the formation of the LED die.
Dependencies are inferred from the claim text.