# US 2008/0186733 A1 · LED & LED-applied backlight module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0186733 A1 - Document ID: US20080186733A1 - Status: Published application - Kind: A1 - Application number: 11/712,582 - Filed: 2007-03-01 - Published: 2008-08-07 - Earliest claimed: 2007-02-02 - Assignees: Lighthouse Technology Co., Ltd. - Inventors: Hsin-Hua Ho; Wen-Jeng Hwang - Web page: https://patentgrep.com/patent/US20080186733A1 ## CPC - G02B 6/0031: {Reflecting element, sheet or layer} - G02B 6/0021: {for housing at least a part of the light source, e.g. by forming holes or recesses} - H10H 20/853: characterised by their shape - G02B 6/003: {Lens or lenticular sheet or layer} - G02B 6/0073: {Light emitting diode [LED]} - H10H 20/8506: {Containers} - H10H 20/856: Reflecting means - H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A light emitting diode includes two lead-frames, one or a plurality of light emitting chip, a casing, and a packaging colloid; the casing comprised of two pairs of a first and a second side units to surround a compartment; the first side unit being higher than the second side unit; the packaging colloid being received in the compartment; and the packaging colloid protruding from the casing to indicate a convex so to change angle of incidence of the light after leaving the packaging colloid and to improve light use efficiency and light emitting angle. ## Claims ### Claim 1 A light emitting diode includes two lead-frames, one or a plurality of light-emitting chip disposed on either the lead-frame and electrically connected to the lead-frame with a conducting wire; a casing covering upon both the lead-frames being comprised of a first side unit and a second side unit opposite to each other with each the side unit includes two sides, a compartment being surrounded by the first side unit and the second side unit; the first side unit higher than the second side unit; and a packaging colloid received in the compartment. ### Claim 2 (depends on 1) The light emitting diode as claimed in claim 1, wherein the first side unit and the second side unit respectively relate to a longer side unit and a shorter side unit. ### Claim 3 (depends on 1) The light emitting diode as claimed in claim 1, wherein the packaging colloid protrudes from the casing to indicate a convex. ### Claim 4 (depends on 1) The light emitting diode as claimed in claim 1, wherein the packaging colloid includes a filling portion and a convex portion; the filling portion being received in the compartment; and the convex portion protruding out of the casing. ### Claim 5 (depends on 4) The light emitting diode as claimed in claim 4, wherein the contour of the first side unit is the same as that of the convex portion of the packaging colloid. ### Claim 6 (depends on 1) The light emitting diode as claimed in claim 1, wherein each of both the lead-frames is formed with a folded portion and a contact portion at where it is exposed out of the casing; and the contact portion is disposed to one side of the casing by means of the folded portion. ### Claim 7 (depends on 1) A backlight module includes a light guide plate, one side of the light guide plate being disposed with a light source and the light source being comprised of multiple light emitting diodes as claimed in claim 1. ### Claim 8 (depends on 7) The backlight module as claimed in claim 7, wherein one side of the light guide plate is disposed with multiple recesses to receive insertion and secure in position of their respective the light emitting diodes. ### Claim 9 (depends on 7) The backlight module as claimed in claim 7, wherein those multiple light emitting diodes are provided on a substrate. ### Claim 10 (depends on 7) The backlight module as claimed in claim 7, wherein the light guide plate includes a light input plane, a base plane crossing with the light input plane, and a light output plane opposite to the base plane; and the first side of the light emitting diode is parallel with the light output plane. ### Claim 11 (depends on 7) The backlight module as claimed in claim 7, wherein the first side unit and the second side unit respectively relate to a longer side unit and a shorter side unit. ### Claim 12 (depends on 7) The backlight module as claimed in claim 7, wherein the packaging colloid protrudes from the casing to indicate a convex. ### Claim 13 (depends on 7) The backlight module as claimed in claim 7, wherein the packaging colloid includes a filling portion and a convex portion; the filling portion being received in the compartment; and the convex portion protruding out of the casing. ### Claim 14 (depends on 13) The backlight module as claimed in claim 13, wherein the contour of the first side unit is the same as that of the convex portion of the packaging colloid. ### Claim 15 A backlight module includes a light guide plate; a corner of the light guide plate being disposed with a light source; and the light source being comprised of multiple light emitting diodes as claimed in claimed 1. ### Claim 16 (depends on 15) The backlight module as claimed in claim 15, wherein a corner of the light guide plate is disposed with multiple recesses to receive insertion and secure in position of their respective the light emitting diodes. ### Claim 17 (depends on 15) The backlight module as claimed in claim 15, wherein the first side unit and the second side unit respectively relate to a longer side unit and a shorter side unit. ### Claim 18 (depends on 15) The backlight module as claimed in claim 15, wherein the packaging colloid protrudes from the casing to indicate a convex. ### Claim 19 (depends on 15) The backlight module as claimed in claim 15, wherein the packaging colloid includes a filling portion and a convex portion; the filling portion being received in the compartment; and the convex portion protruding out of the casing. ### Claim 20 (depends on 19) The backlight module as claimed in claim 19, wherein the contour of the first side unit is the same as that of the convex portion of the packaging colloid.