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US 9,316,360 B2Granted
Light source unit, light source device, and display apparatus
AssigneeSony Corporation
InventorsNorimasa Furukawa, Hiroshi Murayama, Ichiro Murakami
Life of this patent
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Abstract
A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
Claims22
An apparatus, comprising:
- a plurality of light source units configured to produce light, each of the plurality of light source units comprising:
- a holding member with a hollow space inside thereof;
- a light source element inserted into the hollow space of the holding member, the light source element having an optically transparent substrate, substrate electrodes provided on both ends of the substrate in a longitudinal direction, each substrate electrode including a chip-electrode pad and a terminal electrode pad, one or more optically transparent light emitting elements being disposed on the substrate, each light emitting element including chip electrode pads, each chip electrode pad on the light emitting element being connected to a chip electrode pad on one of the substrate electrodes, each terminal electrode pad being connected with one end of a terminal lead-line,
- wherein the plurality of light source units are arranged in cascade in a housing, and wherein a light source element in each of the plurality of light source units is in electric connection with another light source element in an adjacent light source unit in the housing via the terminal lead-line;
- and
- a display section having a first side and a second side, the display section being arranged with respect to the plurality of light source units so that the light produced by the plurality of light source units is incident on the first side,
- wherein the display section is configured to alter its transmissivity in response to an image signal so as to selectively allow the incident light to pass to the second side and thereby generate an image corresponding to the image signal.
4 more elements
A device comprising:
- a plurality of light source units, each having one or more optically transparent light emitting elements and electrical connection portions, and
- a hollow tube structure restricting arrangement of the plurality of light source units so that the plurality of light source units are arranged therein in cascade, wherein
- the plurality of light source units are electrically connected to one another via the respective electrical connection portions of the light source units, and wherein each light source unit includes a holding member and light source elements, the light source elements being inserted into a hollow space of the holding member, each light source element having an optically transparent substrate, substrate electrodes being provided on both ends of the substrate in a longitudinal direction, each substrate electrode including a chip electrode pad and a terminal electrode pad and the light emitting elements being disposed on the substrate, each light emitting element including chip electrode pads, each chip electrode pad on the light emitting element being connected to a chip electrode pad on one of the substrate electrodes, each terminal electrode pad connected with one end of a terminal lead-line;
- and
- a display section having a first side and a second side, the display section being arranged with respect to the plurality of light source units so that light produced by the plurality of light source units is incident on the first side,
- wherein the display section is configured to alter its transmissivity in response to an image signal so as to selectively allow the incident light to pass to the second side and thereby generate an image corresponding to the image signal.
3 more elements
A display apparatus comprising:
- an illumination device configured to produce illumination light;
- and
- a display section having a first side and a second side, the display section being arranged with respect to the illumination device so that the illumination light produced by the illumination device is incident on the first side,
- wherein:
- the display section is configured to alter its transmissivity in response to an image signal so as to selectively allow the incident illumination light to pass to the second side and thereby generate an image corresponding to the image signal,
- the illumination device has a plurality of rod-shaped light sources, each of the rod-shaped light sources having an optically transparent cylindrical tube with a hollow space inside thereof and a plurality of light source units emitting light provided inside the hollow space of each cylindrical tube, and
- the light source units are arranged in cascade inside the optically transparent cylindrical tube, and the light source units adjacent to each other are electrically connected to each other, and wherein each light source unit having a holding member and one or more light source elements inserted into a hollow space of the holding member, each light source element having an optically transparent substrate, substrate electrodes provided on both ends of the substrate in a longitudinal direction, each substrate electrode including a chip electrode pad and a terminal electrode pad, one or more optically transparent light emitting elements being disposed on the substrate, each light emitting element including chip electrode pads, each chip electrode pad on the light emitting element being connected to a chip electrode pad on one of the substrate electrodes, each terminal electrode pad being connected with one end of a terminal.
4 more elements
Dependencies are inferred from the claim text.