Light emitting display device
AssigneeRohm Co., Ltd.
InventorKazuyoshi Tsuji
Life of this patent
Estimating the term…
Abstract
A light emitting portion is formed in such a manner that LED chips 2 are provided on the one ends of the leads 1 for the respective segments of a numeral which is a part of a display image. A reflecting case in which light conducting portions are provided so as to correspond to the parts of the display image is formed so that the LED chips are encircled by the respective light conducting portions. Light permeable resin 4 is filled in the reflecting case so that the interior of the reflecting case 3 and the one ends of the plurality of leads are fixed. An uneven portion is formed at least a portion of an outer peripheral side wall of the reflecting case.
Claims9
A light emitting display device comprising:
- a plurality of light-emitting elements for lighting parts of a display image, respectively;
- a plurality of leads to the one ends of which said light emitting elements are die-bonded or wire-bonded, respectively;
- a reflecting case which has light conducting portions corresponding to the parts of the display image and covers areas to be bonded;
- and
- light permeable resin filled in said reflecting case so that the light conducting portions of said reflecting case encircle the corresponding light emitting elements and the one ends of said plurality of leads are fixed,
- wherein said reflecting case is made of resin, and the inner walls of said light conducting portions are colored in a light-reflective color whereas the remaining outer surface of the reflecting case inclusive of the bottom is colored in light-absorptive color.
A light emitting display device comprising:
- a plurality of light-emitting elements for lighting parts of a display image, respectively;
- a plurality of leads to the one ends of which said light emitting elements are die-bonded or wire-bonded, respectively;
- a reflecting case which has light conducting portions corresponding to the parts of the display image and covers areas to be bonded;
- and
- light permeable resin filled in said reflecting case so that the light conducting portions of said reflecting case encircle the corresponding light emitting elements and the one ends of said plurality of leads are fixed,
- wherein said reflecting case is made of resin with a light-reflective color, and at least the surface thereof on the side of a display surface is impregnated with dyes with a light absorptive color.
A light emitting display device comprising:
- a plurality of light-emitting elements for lighting parts of a display image, respectively;
- a plurality of leads to the one ends of which said light emitting elements are die-bonded or wire-bonded, respectively;
- a reflecting case which has light conducting areas corresponding to the parts of the display image and covers areas to be bonded;
- and
- light permeable resin filled in said reflecting case so that the light conducting portions of said reflecting case encircle the corresponding light emitting elements and the one ends of said plurality of leads are fixed,
- wherein said reflecting case is made of resin with a light-absorptive color, and the inner walls of said light conducting portions are processed in a light-reflective color.
A light emitting display device comprising:
- a plurality of light-emitting elements for lighting parts of a display image, respectively;
- a plurality of leads to the one ends of which said light emitting elements are die-bonded or wire-bonded, respectively;
- a reflecting case which has light conducting portions corresponding to the parts of the display image and covers surfaces of said leads to be bonded;
- and
- light permeable resin filled in said reflecting case so that the light conducting portions of said reflecting case encircle the corresponding light emitting elements and the one ends of said plurality of leads are fixed,
- wherein an uneven portion is formed at least a portion of an outer peripheral side wall of said reflecting case.
Dependencies are inferred from the claim text.