Light emitting sheet module
a technology of light-emitting sheets and modules, which is applied in the direction of moving contacts, lighting and heating apparatuses, instruments, etc., can solve the problems of increased power consumption, light leakage, and large size of sheet switches b>10/b>, and achieves a high level of brightness
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first embodiment
[0037] A light emitting sheet module according to the present invention is explained.
[0038] The light emitting sheet module according to the first embodiment of the present invention is shown in FIGS. 1 and 2. The light emitting sheet module 21 is a thin rectangular light guiding sheet 22 including an upper surface as an emission surface, a lower surface opposite the upper surface, and a circuit board 24 (hereinafter referred to as an LED board) on which is mounted at least one light emitting diode element or light emitting diode 23 (hereinafter referred to as an LED) which is a package including at least one light emitting diode element.
[0039] The LED 23 is disposed to be at one end portion of the light guiding sheet 22, in contact with a lower surface of the light guiding sheet. The LED board 24 has an elongate shape extending along a short side of the rectangular light guiding sheet 22.
[0040] The light guiding sheet 22 comprises a transparent or translucent thin sheet which is mad
second embodiment
[0072]FIG. 6 illustrates a light emitting sheet module 51 according to the present invention.
[0073] The light emitting sheet module 51 in the second embodiment includes a light guiding sheet 52 having a light guiding part 52a and a plurality of LEDs 53 disposed on opposite sheet end portions 52b and 52c of the light guiding sheet 52, respectively. The light emitting sheet module is suitable in a case that the area of the light guiding part 52a is large or in a case that a high level of brightness needs to be obtained. The LEDs 53 are mounted on a pair of LED boards 54a and 54b, and each of the LED boards 54a and 54b disposed at each short side of the light guiding sheet, covered by the sheet end portions 52b and 52c of the light guiding sheet 52. A frame is may be formed by the pair of LED boards 54a, 54b and a connecting member 54c to connect the pair of LED boards so as to avoid the light guiding part 52a, namely the connecting member 54c is disposed outside of the light guiding part
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Abstract
Description
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Application Information
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