Tilted fiber grating display screen realized by using optical fiber

A technology of fiber grating and display screen, applied in the direction of cladding fiber, optical waveguide light guide, instruments, etc., can solve the problems of low resolution, low brightness, and high display cost, and achieve resolution improvement, brightness assurance, and cost reduction. Effect

CN102129819AInactive Publication Date: 2011-07-20BEIJING JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention disclose a tilted fiber grating display screen realized by using an optical fiber, and relates to a display screen which is realized by using the optical fiber. The display screen is applied in the field of high-brightness, colored and high-resolution display and solves the problems of high cost, low resolution and low brightness in a conventional high-quality display screen. Optical signals of a signal laser source of a display screen structure are input from one end of a multimode optical fiber; each tilted fiber grating reflects an optical signal with a corresponding wavelength to the side surface of the optical fiber for outputting; N tilted fiber gratings reflect N optical signals with the corresponding wavelength, so that a display screen function of N pixel points is realized, wherein N is the number of the pixel points on the display screen and is an integer from 100 to 300,000,000; and the pixel points are arranged in an array of 10-30,000*10-10,000. A used laser is the laser which outputs N wavelengths; and the N wavelengths output by the laser correspond to the centre wavelength of the first to Nth tilted optical fibers one by one.
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Description

technical field

[0001] The invention relates to an oblique optical fiber grating display screen realized by optical fiber. It is especially used in the fields requiring high brightness, color and high resolution display. Background technique

[0002] The function of the display screen is to display information in the form of a bitmap, and its appearance and development have played an irreplaceable role in the dissemination of information. Throughout the development of the display screen, the display screen has expanded from simple digital display to black and white bitmap and today's high-definition true color bitmap display, and its application fields have also been greatly expanded, and the image expression ability has also been greatly improved.

[0003] Today's mainstream display screens are mostly liquid crystals and light-emitting diodes, that is, LCDs and LEDs. The color mixing effect of the LED is not good, the viewing angle is not large, and there is color differe...

Examples

Embodiment approach 1

[0022] The oblique fiber grating display screen realized by optical fiber includes a laser 3, a multimode fiber 2, the first to Nth oblique fiber gratings 11, 12, 13, ..., 1N, and the light of the laser 3 engraved on the multimode fiber 2. The signal is input from multimode fiber 2, such as figure 1 shown.

[0023] Compared with ordinary fiber gratings, the angle between the angle between the refractive index distribution of the inclined fiber grating and the fiber is greater than 0° and less than 90°.

[0024] N is the number of pixels of the display screen, N=100~300000000 integer, arranged in an array of 10~30000*10~10000;

[0025] The laser 3 is a laser that outputs N wavelengths, and the N wavelengths output by the laser 3 correspond to the center wavelengths of the first to N slanted fiber gratings 11 , 12 , 13 , . . . , 1N.

[0026] The outer radius of the cladding of the multimode optical fiber 2 is 60-500 microns, and the radius of the core is 5-300 microns;

[002...

Embodiment approach 2

[0031] The oblique fiber grating display screen realized by optical fiber includes a laser 3, a multimode fiber 2, the first to hundredth oblique fiber gratings 11, 12, 13, ..., 1100, and laser 3 engraved on the multimode fiber 2. The optical signal is input from the multimode fiber 2, such as figure 2 shown.

[0032] The laser 3 is a laser that outputs one hundred wavelengths, and the one hundred wavelengths output by the laser 3 correspond to the center wavelengths of the first to the hundredth slanted fiber gratings 11 , 12 , 13 , . . . , 1100 one by one.

[0033] The outer radius of the cladding of the multimode fiber 2 is 60 microns, and the radius of the core is 5 microns.

[0034] The output wavelength range of the laser 3 is 390-394.95 nm; the interval between adjacent wavelengths is 0.05 nm.

[0035] The bandwidths of the first to the hundredth slanted fiber gratings 11, 12, 13, ..., 1100 are all 0.05nm, and the central wavelength is 390-394.95nm. The wavelength o...

Embodiment approach 3

[0039] The oblique fiber grating display screen realized by optical fiber includes a laser 3, a multimode fiber 2, the first to the first ten thousand oblique fiber gratings 11, 12, 13, ..., 110000, laser 3 carved on the multimode fiber 2 The optical signal is input from the multimode fiber 2, such as image 3 shown.

[0040] The laser 3 is a laser that outputs 10,000 wavelengths, and the 10,000 wavelengths output by the laser 3 correspond to the central wavelengths of the first to the first 10,000-slope fiber gratings 11, 12, 13, . . . , 110,000.

[0041] The outer radius of the cladding of the multimode fiber 2 is 100 microns, and the radius of the core is 10 microns.

[0042] The output wavelength range of the laser 3 is 720.005-770nm; the interval between adjacent wavelengths is 0.005nm.

[0043] The bandwidth of the first to the first 10,000-slope fiber gratings 11, 12, 13, ..., 110,000 are all 0.005nm, and the central wavelength range is 720.005-770nm. The wavelength ...