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Acoustic light-emitting device

A technology of emitting devices and light-emitting devices, which is applied to sensor components, light sources, sensors, etc., and can solve problems such as unsatisfactory light and sound quality

Inactive Publication Date: 2008-08-20
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage is that the quality of light and sound produced by such acousto-optic emitting devices is not satisfactory

Method used

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  • Acoustic light-emitting device
  • Acoustic light-emitting device

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Experimental program
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Embodiment Construction

[0024] Fig. 1 shows an acousto-optic emission device 10 comprising a plate-shaped element 20 which is in the shape of a plate. In this embodiment, the sheet-shaped element 20 with a layer structure is a light-emitting device 30, in particular an organic light-emitting device (OLED) 30, which has a first electrode layer 31, a second electrode layer 33 and an The light emitting layer 32 between the second electrode layer 33 and the second electrode layer 33 are deposited on a substrate not shown in FIG. 1 . The substrate layer can be glass, metal plate or foil, etc. The substrate is transparent to bottom emitting devices. The substrate can be transparent or opaque to the top emitting device. Layers 31, 32, 33 are formed by thin film deposition techniques such as vapor deposition, sputtering and / or wet chemical deposition techniques. The converter 40 is fixed directly on the plate element 20 , whereby the converter 40 can be connected to the plate element 20 by means of a form...

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PUM

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Abstract

The invention relates to an acousto-optic emission device (10, 10', 10", 10'" and 10"") comprising a laminar element (20) having a layered structure which performs in response to a signal applied thereto predetermined operation, at least one transducer (40), which is the source of said signal by exciting bending waves to the plate-like element (20), wherein the plate-like element (20) comprises a light-emitting device (30), the light-emitting The device has at least a first electrode layer (31), a light emitting layer (32) and a second electrode layer (33).

Description

field of invention [0001] The invention relates to an acousto-optic emitting device. Background technique [0002] Conventional loudspeakers are known to utilize conical membranes as sound radiators. In this case sound radiation can be obtained by attaching an electrodynamic voice coil transducer to the smaller end of the membrane. The transducer drives the coil back and forth. In US 2002 / 0118847 A1 a loudspeaker is described which emits sound by means of vibrations of a plate whereby a transducer causes the plate to undergo bending vibrations. [0003] Lighting is often required where loudspeakers are used. Devices with loudspeakers having reflective surfaces are well known. Illumination of a large area can be achieved by using lights directed towards the surface of the loudspeaker. In the state of the art, such devices are known which comprise a combination of sound-emitting and light-emitting elements. For example, it is known to arrange light emitting diodes around...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/04H04R1/02F21V33/00
CPCF21V33/0056F21Y2105/00H04R1/028H04R7/045
Inventor D·亨特
Owner KONINKLIJKE PHILIPS ELECTRONICS NV