TWI289218B - Fiber display - Google Patents

Abstract

The present invention relates to a fiber display, which includes a light source for providing illumination; a cluster of fibers, one end of which forming an incidence surface for receiving the coupled light and the other end of which forming a display surface; and a light modulator disposed between the incidence surface and the display surface for modulating the intensity of the light transmitted in the fibers. The fiber display can further include a color filter, a couple element, a band-pass filter for visible-light or a diffusion element to realize colorful displaying or improve display quality.

Description

1289218 V. INSTRUCTIONS INSTRUCTIONS (1) [Technical Fields of the Invention] The Cryptography Department is concerned with the type of displacement register, especially a dynamic displacement. [Prior Art] L is close to f since ten t, except for some small and medium sizes. On the display of the notebook computer, it can be seen that the color image tube (Cath〇de Ray Tube, crt) displays ^, but in recent years, due to the popularity of network broadband and digital signal transmission. The broadcaster's change to Ai, a variety of new generation display technology came into being. At present, the flat display of the new generation display technology mainly includes liquid crystal display (LCD), plasma display (PUsma DlspUy Panel, PDP), projection display and organic electroluminescent display (〇rganic)

Light Emitting display, 〇LED), etc. A prior art optical fiber display can be referred to the Chinese Patent No. 97243700 published on June 23, 1999. The optical fiber display uses optical fibers in pixels to overcome the loss in the image transmission process, and can realize the large scale of display 1§ Chemical. As shown in the first figure, the optical fiber display comprises a projector 1, a reflection sheet 2, a fiber bundle head 3 and a display panel 4, wherein the fiber bundle head 3 is arranged in the closest arrangement by the bundled optical fibers 302. The glue is combined with the same plane, and the other end of the bundled optical fiber 3 0 2 is enlarged and arranged on the display panel 4 at a certain ratio. The video signal projected by the projector 1 is reflected by the reflection sheet 2, and the fiber bundle head 3 is transmitted through the bundled optical fiber 302 and displayed on the display panel 4. The image video signal of the fiber optic display needs to be generated by the projector 1. SUMMARY OF THE INVENTION It is an object of the present invention to provide a fiber display that does not require the use of a projector.

Page 5 1289218 V. Description of the invention (2) Display. The present invention provides a fiber optic display comprising: a light source for providing illumination, a fiber bundle, which is composed of a plurality of optical fibers, one end of which is arranged to form an optical end for receiving light emitted by the light source, the optical fiber The other end is combined to form a display end; and a light intensity modulation is disposed between the light incident end and the display end, and is used for adjusting the light output intensity of each optical fiber of the display end. A plurality of optical switches that are paired with the pole number fiber. The optical fiber display provided by the present invention may further comprise a color filter, an optical coupling element, a visible light band pass filter, a diffusion sheet to achieve & color display or enhance display effect. Compared with the prior art, the optical fiber display of the present invention uses the light intensity modulation device to change the propagation energy of the light in the optical fiber, and controls the light and dark state of the optical signal on the display surface to achieve the display purpose without using the projector. [Embodiment] Please refer to the second drawing, which is a schematic plan view of a first embodiment of the optical fiber display of the present invention. The fiber optic display includes a light source 21, a fiber bundle 27, and a light intensity modulation device 29, wherein the fiber bundle 27 is composed of a plurality of optical fibers 272, wherein one end of the plurality of optical fibers 272 constitutes an optical input end 273 for receiving The light source 21 emits light while the other end forms a display end 274. Referring to the third to fourth figures, the brightness modulation device 29 is composed of a plurality of optical switches corresponding to the plurality of optical fibers 272 -- the optical switches include a filter 32, the plane of the filter 32 and the optical fiber 272 The angle is not, wherein the ferrator 3 2 is rotatable after being controlled by the MEMS device, as shown in the fourth figure.

1289218 V. DESCRIPTION OF THE INVENTION (3) There is at least sixteen variations in the angle 0 between the plane of the filter 3 2 and the fiber 277. When the plane of the filter 3 2 is perpendicular to the optical fiber 272, it is assumed that the absorption of the filter is ignored, and the spectrum of the incident light is the same as the transmission spectrum of the filter 32. The incident light energy can be completely Through the filter 32, when the filter 32 is rotated, when the optical fiber 2 72 is not perpendicular, the equivalent penetration spectrum of the filter 32 is blue-shifted, that is, the equivalent penetration spectrum of the filter In the short-wave direction, the spectrum of the incident light after blue-shifting is no longer the same as the equivalent transmission spectrum of the filter 32, and the incident light energy is partially loaded and then dropped. Wherein, since the plane of the filter 32 after rotation is different from the angle 0 of the optical fiber 272, the equivalent transmission spectrum of the filter 3 2 is differently blue-shifted, and thus the plane of the filter 32 and the optical fiber 2 are controlled. The angle 0 of 72 changes the propagation energy of the light in the fiber. The optical switch of the optical fiber display of the present invention may adopt another structure. As shown in the fifth to sixth embodiments, the light intensity modulation device 29 is composed of a plurality of optical switches corresponding to the plurality of optical fibers 272, and the optical switch includes two filters. 52, 54, the angle between the plane of the two choppers 52, 54 and the optical fiber 272 is 01, 6 > 2 ' respectively, the two filters 52, 54 can be rotated by the micro-electromechanical device, such as As shown in the sixth figure, the angle θ 平面 between the plane of the two filters 52 and 54 and the optical fiber 272 is at least sixteen variations after the rotation. The optical fiber display of the first embodiment of the invention uses the brightness modulation device to change the propagation energy of the light in the optical fiber, and controls the light and darkness of the optical signal on the display surface to achieve a monochrome gray scale display without using a projector. purpose. Referring to the seventh figure in May, the second embodiment of the optical fiber display of the present invention is

1289218 V. Description of invention (4) Plane is not intended. The optical fiber display comprises a light source 7A, a light filter element 73, an optical coupling device 75, a fiber bundle 77 and a brightness modulation device 7 9, wherein the fiber bundle is composed of a plurality of optical fibers 727, the plural One end of the optical fiber 7 7 2 constitutes an optical end 773 for receiving the light emitted by the light source 71, and the other end constitutes a display end 774. The light emitted by the light source 71 passes through the light filter element 73, the light coupling element 75, the light incident end 7 7 3, the 泫 fiber bundle 7 7 , the brightness adjusting device 7 9 and the display end 7 . 7 4. The optical filter element 73 is a color filter composed of three different color patterns 732 of red (R), green (g), and blue (B), and the color pattern 732 can be printed. , Dyeing, etching, Pigment Dispersion, electroforming, etc. The light passing element 73 functions to convert white light through the three primary color beams of red, green and blue. Referring to the ninth to tenth drawings, the optical coupling element 75 is composed of a plurality of micro convex lens units 752, and the micro convex lens unit 752 corresponds to the pattern 7 3 2 of the color light sheet. The red, green, and blue primary colors of the pattern 7 3 2 are optically coupled into the optical fiber 772. Referring to the figure, the display end 7 7 4 composed of the optical fibers 7 7 2 is arranged according to the color of the input light of the light-incident end, and the display pixels are formed according to the combination of red, yellow and blue, and are displayed by different display elements. surface. The second embodiment of the present invention can realize color display. FIG. 12 is a schematic plan view of a third embodiment of the optical fiber display of the present invention. The present embodiment includes a light source 1 21, a light filter element 123, an optical coupling element 125, a fiber bundle 127, and a light. Brightness modulation

1289218 V. INSTRUCTION DESCRIPTION (5) In the case of the light source 1 2 1 and the optical filter element 1 2 3 , a band pass filter 1 2 2 and a diffusion sheet 1 2 4 in a visible range are disposed. . The light of the ultraviolet wavelength emitted by the light source reflects the glass and the adhesive, and the light of the infrared wavelength is easy to generate heat to raise the temperature of the system. The band pass filter of the visible range is used for filtering infrared and ultraviolet light. Can improve the display. The diffusion sheet 1 24 has a certain scattering function, which can make the light emitted from the light source 丨 2 1 uniform. The band pass filter 丨2 2 in the visible light range can also be formed by combining an infrared ray and an outer cut-off light-passing sheet. The optical fiber display of the present invention is not limited to the above embodiment. For example, the optical interference device may also use a multilayer interference film which can be fabricated on the back surface of the optical coupling element by evaporation or sputtering to achieve integration. . The coupling element can also be integrally formed with the optical fiber to reduce the volume. & described above, the invention conforms to the patent requirements of the invention, and patents are filed according to law. The above description is only a preferred embodiment of the present invention, and the equivalent of the invention is modified or changed. The equivalent whiteness of the invention according to the spirit of the present invention should be included in the following. Within the scope of the patent application.

1289218 BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a prior art optical fiber display. The second embodiment of the present invention is a schematic diagram of the optical fiber display of the present invention. The fifth to sixth figures are schematic views of the optical fiber display of the present invention. Figure 7 is a view showing the arrangement of the first color pattern of the optical fiber display of the present invention. The ninth drawing is a diagram of the optical fiber display of the present invention. Figure 11 is a schematic view showing the arrangement of the first optical fibers of the optical fiber display of the present invention. The eleventh drawing is a diagram of the optical fiber display of the present invention. Figure 12 is a schematic view of a fiber optic display of the present invention. [Main component symbol description] Light source 2 1, 7 1 , 1 2 1 Light intensity modulation device 29, 79, 129 Optical filter element 73, 123 Filter 122 Optical fiber 272, 772 Display structure. A schematic structural view of an embodiment. The optical switch of the first embodiment is a schematic structural view of another embodiment of the optical switch of the first embodiment. 2 embodiment color filter color 2 embodiment microlens column schematic 2 embodiment optical fiber bundle display end second embodiment optical coupling schematic third embodiment optical switch working fiber bundle 27, 77, 127 filter 3 2, 5 2, 5 4 optical coupling elements 75, 125 diffusion sheet 124 into the light end 273, 773

Page 10 1289218 Schematic description of the display side 2 74, 774 color pattern 732 micro convex lens unit 752

IH1HI

Claims (1)

1289218 VI. Patent Application 1 1. A fiber optic display comprising: a light source for providing illumination; a fiber bundle consisting of a plurality of optical fibers, one end of the optical fiber forming an optical end for receiving light from the light source The other end of the optical fiber is combined to form a display end; and a light intensity modulation device is disposed between the light incident end and the display end for adjusting the light output intensity of each optical fiber of the display end, and the light brightness is adjusted. The variable device includes a plurality of optical switches corresponding to the plurality of optical fibers. 2. The fiber optic display of claim 1, wherein the optical switch comprises at least one filter. 3. The fiber optic display of claim 2, wherein there is at least sixteen variations in the angle between the plane of the filter and the fiber to control optical transmission energy in the fiber. 4. The fiber optic display of claim 3, wherein the angle between the plane of the filter and the fiber is controlled by a microelectromechanical device. 5. The fiber optic display of claim 1, wherein the fiber optic display further comprises a light filter element disposed between the light source and a light incident surface of the fiber bundle, the light filter element being composed of a plurality of color patterns. The color light is emitted by filtering the light source to realize color display. 6. The fiber optic display of claim 5, wherein the optical filter element is a color filter consisting of three color patterns of red, green, and blue. 7. The fiber optic display of claim 5, wherein the fiber optic display Page 12 1289218 VI. Patent Application The display further includes a band pass filter in the visible range, the band pass filter being disposed between the light source and the light filter element. 8. The fiber optic display of claim 1, wherein the fiber optic display further comprises a light-converting element disposed at an end of the bundle of fibers for coupling light from the source into the bundle. 9. The fiber optic display of claim 8, wherein the optical coupling is a microlens column composed of a plurality of micro-convex lens units, the fiber ends of the micro-convex lens unit-corresponding. The optical fiber display of claim 8, wherein the optical fiber display comprises a diffusion sheet disposed between the light source and the optical coupling element. 11. The fiber optic display of claim 1, wherein the display ends are red, green, and blue in combination to form a display element.