TW200905358A - Projecting device - Google Patents

Abstract

A projecting device includes a light source, an optical unit and a processing unit. The light source includes a light emitting source and a light controlling device. The light emitting source includes a LED array and a base for supporting the LED array. At least one of the surface of the LED array and the surface of the base has a light reflecting structure. The optical unit includes a polarizing beam splitter and two reflecting light modulators for modulating light. According to the above-mentioned structure, the size of the projecting device is reduced. Furthermore, the efficiency of the lighting display is improved.

Description

200905358 IX. Description of the Invention: [Technical Field to Be Invented by the Invention] The present invention is a projection apparatus for a high light efficiency. ' As a small size and can be raised [previous technology] body playback devices (such as a sub-game console, multimedia digital assistant (PDA) and mobile phones, etc., for the development of digital cameras, personal, communication technology, this This device is especially rich in image information.;::=Electronic devices can display images, which greatly enrich people's vision; scene to movie map = mining:: size 24 (four) 20, horizontal and vertical resolution only Right, so that people are watching the picture of the second day of the sage \ only 2G ~ 5 〇 with the left inch. Yes, Si: the temperament of the entire sturdy electronic device. ^ The method is to sacrifice the electronic device It can be carried in the f ^ ^ line mode between the electronic device and the general projector in the external large screen image through the peripheral projector display, for example, in this application: large screen high definition display. Among them, the prior art projection nesting is unintentionally represented by a +-dashed dotted line. The white light W emitted by the light source 200905358 LS is divided into two paths by the dichroic mirror D1: one way is blue light B, which passes through the mirror MB is incident on the polarization beam splitting prism PSB, which is divided into After the interface is reflected, it is irradiated to the light modulation device PB, the polarization state is changed and the image information is carried, and then transmitted through the light splitting interface of the prism PSB and irradiated to the light combining prism C; the other is the mixed light beam R+G of red light and green light. After being reflected by the mirror MR+G, it is irradiated to the dichroic mirror D2 and divided into two branches of red light R and green light G. Similar to the above description about the blue light B, two branches of the red light R and the green light G The paths pass through the polarization beam splitting prisms PSR, PSG and the light modulating devices PR, PG, respectively, and are irradiated to the light combining prism C. The light beams of the three colors are combined by the light combining prism C and projected through the projection objective PL to form a color image. However, the display of the external interface of the portable electronic device requires an additional projector, which increases the size of the system and cannot meet the portability requirements of the portable electronic device. In addition, the illumination source in the existing projection display system is mainly UHP lamps (ultra-high pressure mercury lamps), xenon lamps, etc., in addition to large volume, these light sources also have high power consumption, severe heat generation, and more harmful components (ultraviolet light, infrared light) in the spectrum. Shortcomings, poor safety, etc., are not suitable for sturdy applications. Moreover, the prior art projection apparatus shown in the first figure uses more components, in addition to being bulky and costly, light is in these components. Both the incident and the exiting surfaces generate reflection losses, which are considerable in accumulation, which is also disadvantageous for energy efficiency that is very important in portable electronic devices. In addition, Chinese Patent Application Publication No. CN1570704A discloses a novel display mode. It uses two color-based liquid crystal-based liquid crystal (LCoS) devices, which can realize three-dimensional display and six-color high-realistic color 200905358 extremely easily. It can be freely converted between these two display methods, and it is likely to become the mainstream of future display directions. . In such a display system, it is necessary to use a polarization beam splitting prism to project two mutually orthogonal linearly polarized lights onto two different Shihuaky liquid crystal devices. However, the extinction ratio of the transmitting end and the reflecting end of the conventional MacNeille type polarizing beam splitting prism is different. Generally, the extinction ratio of the transmission end can reach 丨〇〇〇: 1 or more, and the extinction ratio of the reflection end can only reach 2 〇: ι or so. Considering the discriminating ability of the human eye, it is desirable that the extinction ratio can reach 150:1 or even 200:1 or more, so the image quality of the above-mentioned reflection end is unacceptable. If only the image of the transmissive end is used instead of the image of the reflective end, about 50% of the light energy in the system will be lost. CN1570704A uses a combination of four MacNeiUe polarizing beam splitting prisms, which can combine the light energy of both the transmitting end and the reflecting end, but more interfaces will obviously bring more Light loss, and greatly increase the size and weight of the system, so its application in the sturdy projection display is greatly limited. " With the advent of micro-displays such as 矽-based liquid crystals and DMD, projection display has become an important new type of show. In the existing projection display system, the illumination source is mainly ffiUHp lamp (ultra-high pressure mercury lamp) and xenon lamp 2, but 24 of these light sources have large volume, high power consumption, severe heat generation, spectrum = yes, and components (ultraviolet light). , infrared light) more, short life, poor security and other shortcomings. Therefore, in recent years, with the rapid improvement of the solid-state light source led (light-emitting diode) technology, replacing the UHP or xenon lamp with LED as a light source for projection display has been an important research in recent years; The test prototype of the room came out. 7 200905358 II: Technology, the brightness of the early Qing can not be projected. The ribs are formed into a light source for projection display by using a plurality of LED arrays of red, green and blue colors similar to those in the second figure. Since the brightness of the LED light-emitting chip is insufficient to meet the needs of the projection display: Only a combination of multiple LEDs can be used to achieve this purpose. One pole 2-2, and the light-emitting diode 2_3: fixed in the block base W' On, the next shot - the beam of nearly parallel white light, can be used for projection display. These must be separated by a certain distance to ensure that they are good. A combination of 14 light sources and a newly invented color-based liquid solution (a Chinese patent application (10) named "Tursible Electronic Equipment" (= 3,624, Χ) can be combined to form a miniaturized investment system. The miniaturized projection display system can be integrated into portable electronic devices such as mobile phones, f5 computers, ships, and palm-type game machines, which has broad application prospects. The use of optical electronic devices is extremely important due to the limitation of battery capacity. At present, the light recycling design matched with the color Shi Xiji liquid chopping wave is mainly for the needle f, and the LED array that is closer to the surface light source is not: firstly, it is required to light the LED array light source. Recycling method).疋 液晶J Liquid Crystal (LCoS) projection display is an important new display method. 4 inch is disclosed in Chinese patent application publication cyi57〇7〇4a - a new type of display mode. It uses two color Shihuaji liquid crystal devices to be extremely 200905358, which conveniently realizes three-dimensional display and six-color high-fidelity color display, and Free conversion between the two display methods. This new type of display is likely to be the mainstream of future display directions. In this display system, a polarizing beam splitting prism is used which projects two mutually orthogonal oscillating lights onto two different 矽-based liquid crystal (LC〇s) devices. However, the transmission end of the conventional McNeil type polarization beam splitting prism is ‘reflective end: the extinction ratio is different. Generally, the extinction ratio of the transmitting end can reach 1000.1 or more, and the extinction ratio of the reflecting end is often only about to be left and right. Considering the discriminating ability of the human eye, (4) eliminating the ratio of 150:1 or even 200:1 or more, the image quality of the above-mentioned reflective end is unacceptable. The solution can adopt the m-shaped combined polarization beam splitting prism which is composed of four chest-type polarizing beam splitting prisms disclosed in Chinese Patent Application Publication No. CN1570704A, but obviously this will reduce the light utilization efficiency of the system and increase the volume of the system. And weight. This defect severely limits its display in a sturdy projection, and an important development in the future is the sleek projection application No. 2_1_3624.X). Seeking the defects of the 11-type polarization beam splitting prism, some new types of polarizing beamsplitters have emerged. For example, the United States said that the company invented a method of compounding and stretching with a multi-layered poly (tetra) film, using the micro-folding produced by stretching. : The extinction ratio of both the transmissive end and the reflective end can be satisfied ==: optometrist (see US Specialist). However, since the surface of the multi-layer polymer film of the m-optic composite is not light, its reflection The image is distorted. K〇dak has improved the wire grid polarizing beam splitter by adding some matching layers of 200,905,358, which increases the extinction ratio of the reflecting end (see US Patent No. 6,532,111). It is not enough, the extinction ratio of the reflection end is still less than 100:1. Therefore, a new type of polarization beam splitter is needed. The inventor of the present invention feels that the above-mentioned deficiency can improve the research of the intensive research and the use of the theory, and finally proposes a kind of The present invention is reasonable in design and effective in improving the above-mentioned defects. [Invention] The inventor of the present invention is aware of the above-mentioned deficiencies in display in a portable electronic device. To that, if the projection device can be built into the portable electronic device' and the image can be projected by the projection device to a suitable location outside the device, such as a screen, wall or transportation vehicle (such as a car 'ship, airplane, etc.) The inner wall, even the back of the seat, can maintain the portability of the electronic device and make viewing images very convenient. In order to realize the built-in projection device into the portable electronic device, the following problems need to be solved. First, the volume of the projection device should be small enough to be accommodated inside the common portable electronic device; secondly, the energy utilization efficiency should be maximized; thirdly, it can be produced industrially and the cost can be reduced as much as possible. The projection display device of the technology is difficult to overcome at the same time. The projection device according to the present invention and the portable electronic device using the projection device satisfactorily solve the above problems. Further, the present invention provides a combination of a photonic crystal and a semiconductor process. The idea of making a photonic crystal in the components of a projection device through a semiconductor process. The traditional bulk optical components are integrated into the optical path to perform the required manipulation of the characteristics of the light to achieve miniaturization and increase its efficiency. Photonic crystals usually have a periodic dielectric structure on an optical scale. In the case of II open Hi, it is represented by various layers, grids or grids. The terminology involved in this application, semiconductor process, includes the use of micron and on semiconductor wafers or substrates commonly used in 10 200905358. Steps and/or necessary auxiliary processing steps:; ion implantation, growth, yellow light process (also can be deposited, splattered, etched, lifted off (10) off) and patterned, sound Sub-beam exposure processing, etc.), the "semiconductor art" is not limited to 'half, but this can also be done by these processes, -r; only on the appropriate material (such as Optical or mechanical means = similar processing steps, materials, etc.), to achieve the use of the discontinued, gold bandwidth, etc., the realization of the fresh Wei structure and in the spectral process" can also be on the station Or processing step % In the semiconductor, such as light or mechanical processing technology, combined with the f ^ ϋ / county structure and transfer agency _ in the _ system, especially 疋 application _ based liquid crystal panel packaging glass inch (four) a), can be wheel base Liquid crystal projection device = chip structure fine structure into an early structure, and can be used in the 3D/six primary color (suspended) display of the simple projection device; by applying the photonic crystal structure $ process to the branching device to form the nano grating The structure can be realized by a single = light prism to realize the function that the county needs to realize by the m-shaped split mirror group. The photonic crystal structure and the semiconductor X art are applied to the light_structure I to shoot the single required in the prior art. Functional, discrete, bulky light control components are integrated into, for example, the packaged portion of the light source, and energy recovery for the light source that provides the light control function is also required (4), the light-coated crystal structure, and the semiconductor process. These should be (10) extremely beneficial to the technical issues pointed out by the second decision. A 投影, in accordance with the first aspect of the present invention, provides a projection apparatus including a light source portion, a wire engine, and a signal processing portion, wherein the light source portion illuminates a source and a light control member, and the optical engine includes a polarization component B and Shot-type light adjustment processing part (four) _ anti-paste paste anti-light modulation. Also, in the projection apparatus according to the present invention, the bias includes a sub-wavelength grating and two optical prisms, and the sub-wavelength grating is formed on the substrate of the substrate or the surface of the optical prism by two=蛰, and == book and optical prism It is set so that it is incident on the sub-wavelength grating, and the polarization states that are orthogonal to each other (ie, the first polarization state and the second polarization are respectively incident on the two reflective light modulators: (heart knife open, second reflective light adjustment) (P苐 Reflective light adjuster and in the projection device according to the invention, the LED or LED _ on the illumination source, the pedestal mi 褒 in the pedestal = face shape' and may have a groove for: A face or y diode array. More preferably, the LED or the LED array or the mounting base wire (4) has a reflective structure, especially the surface of the surface or the reflective film layer, to: one step; the light energy using the semiconductor process Forming = according to the present invention, the New Zealand Department 2 has become a structure in which at least two optical functions are realized. k is - body parallel adjustment, polarization state adjustment, monochromaticity adjustment, 2 functions such as homogenization, diameter adjustment Etc. Light control structure can include ^ shape adjustment, light Beam structure. This integrated light control component can enter the structure or photonic crystal volume. ^Reducing the body of the projection device In the projection device according to the present invention, the 5 矽-based liquid crystal device 'and the color 矽-based liquid crystal device U The micro-array array formed for color one ==: 200905358 At the same time, the function of the projection system can be extended to the three-dimensional/six-primary color display by using two 矽-based liquid crystal panels. The sub-wavelength grating used in the present invention may be nanometer. The grating may include a wire grid made of a medium or a metal. In order to improve the display effect, the sub-wavelength grating and the optical prism may be disposed such that the first polarization state is totally reflected at the sub-wavelength grating, and the second The index of refraction in the sub-wavelength grating matches the index of refraction in the optical prism. This degree of index matching can be such that the reflectance of the second polarization state is less than a certain set threshold 'eg 1%. The threshold can be Determined as needed or by experiment. The 'optical engine can also package the light in an image magnification mode. In addition, in the projection device according to the present invention Movies objective lens for projection from the polarization beam splitter. _ Projection apparatus according to the invention may be built in wooden pestle electronic device may be prepared, for example, may be a mobile phone out, can engage computers, personal digital assistants,

:= Take camera, video game console,. 1 more than the == the f: aspect of the 'provided' built-in projection device and the letter ii, the shadow device includes a light source part, the optical engine to the optical two light source part includes an illumination source and a light control component, The rib::r passes and the sub-wavelength first grid and the optical prism are set such that the input ==: 13: the gate two: the solid-f phase orthogonal polarization state light (ie, the first exhaustion and the knife does not strike two reflections - Polarization state and second polarization state)

Yi and the second reflective light adjustment ^. The #gp device (ie, the first-reflective light adjustment is used to reduce the number of I# I ΓΓ 5 5 共用 共用 。 。 。 。 。 。 。 。 。 。 。 。 。 。 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The device can also be seen, the machine is displayed, the user does not need to project outwards to view the part _ 1, clothing, display preferred 4 by the projection of the 4 towel signal processing, including the projection ^ The slidable electronic device can also switch between the optical engine settings. The objective lens can be at least in the first position and the second position of the device; in the first position, the polarization is reflected in the first position. Thunder-type projection, so that when the image is not required to be placed outside the sub-device, the projection objective can be placed in the second position k. Image & /, through the small display screen or eyepiece of the electronic device itself In order to view the limitations of the nature of the material and the required functions, the traditional optical parts are also limited in the degree of size and politicity. Counting the degree of freedom of reporting = this way, According to the present invention, the volume of the projection device can be made very small, the energy loss is reduced to a minimum, and it can be produced in an industrialized manner, which greatly reduces the cost. Therefore, the projection device can be built into the portable electronic device, thereby achieving Good display effect, and can maintain high portability. 14 200905358 In order to combine the high cutting work, the invention can be mechanically connected, connected, bundled and other simple components - the pieces are arranged, arranged, fixed or A system that accommodates the system; the integrated system of the present invention can be compared to a conventional discrete component system or a "assembly" system in which the discrete components are simply reduced by one. A large number of 70 pieces. The advantages of reducing the number of S parts are at least Bao County, including the reduction of the material production county and system materials absorption, (7) to improve the efficiency, reduce the interface reflection of the components and the material coal stomach _, (7) improve the quality and reduce Distortion caused by components to the image 1: glory between 70 pieces of each _ astigmatism and thus improve the performance of the line in the image pair; (4) simplified design, including optical path design (four) system structure 5 and (5) Reduce volume, weight, and the like.

. In addition, the optical purity of the money constructed by the present invention can be achieved to a large extent, i.e., a large number of parts of the system can be constructed from inexpensive materials. The secret LED # secret energy, high efficiency light source: and greatly reduce the absorption and reflection losses in the system components, significantly reducing the heating and temperature rise of the parts in the system, so that a large number of inexpensive plastics can be used. Resin, polymer and other materials replace expensive advanced optical surfaces or crystals in conventional optical systems, and can be used to fabricate part substrates, etc., by means of imprinting. This makes sense for making complex optical structures such as aspherical lenses. Moreover, the present invention can realize the two-dimensional/six-primary color display by using an LCoS device in the form of an integrated optical system. This has a great effect on the development of display technology. Two-dimensional stereoscopic display, and the six primary colors display can be, and are not beautiful for people to pursue the higher display effect chromaticity space for the display = reduce due to the spectral limitation of the illuminating source, the display in the six primary colors will be certain, ^ 欵The limitations caused by the fruit. It is foreseeable that three-dimensional / and the present invention can be greatly developed, the shoulders and the technical field to a higher stage, in addition, the projection of this development. The principle of the combination of the invention of the photonic crystal and the semiconductor process phase, the principle of which can be extended by the invention - a brand new = system:::, for example, optical imaging, light center, and bring the front: Ϊ Shaoyuan Medical = aerospace and many other fields of equipment ^, 戍 ^ 70 pieces (and thus reduce system cost, improve efficiency, improve image quality, simplify design and reduce volume and weight, etc.) and plasticization, etc. U 'allows expensive, complex traditional "high-end" instruments such as professional medical equipment, Sharp Airways instruments, etc., may enter the home field or be used more widely. In order to further understand the technical methods and effects of the present invention in order to achieve the intended purpose, the following detailed description of the invention and the accompanying drawings, which are believed to be The detailed description is to be understood as illustrative and not restrictive. [Embodiment] The embodiments of the present invention will be described in conjunction with the accompanying drawings in order to better understand the objects, aspects and advantages of the invention. In the description of the present specification, the same reference numerals denote the same elements. The first figure shows an unintentional structural diagram of a projection apparatus 1 according to an embodiment of the present invention. The projection can be made according to the present invention, including the application to any device (10) ί:=camera, cymbal, mobile phone, etc., such as a small liquid C sub-device or a conventional display device, so that the user can view the user. The projection device 1 can be called the financial unit part of the projection device as shown in the first figure of the conventional portable electronic device. Part, light Four C diagram and third χ: ε knife The following will refer to the fourth Β, Β, and 分. Α to five cw (four) finely cast these components of the device (1) light source part 1〇5. In addition, the first, the knife 2 〇 0 includes the illumination source 210 and the light control element composition, the fourth ΒΐΓΛ * 1 represents the light source part of the present invention, and the fourth H the light source part is another alternative form, enlarged view . Θ Θ 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据 根据The skirt includes illumination components arranged in sequence along the direction of travel of the light, and is the entire ^2 and parallel adjuster 212. Illumination source 210 is a source of illumination 210 placed to provide illumination. In order to achieve color projection, illumination, the invention illuminates light of an early color component, such as white light. For the primary color LED ^ 佳 ^ is a coffee ' can be included in three different forms of other forms of clothing, but can also be other luminous 11 pieces, such as body source such as VCSEL. In the case of LED arrays 17 200905358 II: LEDs can be mounted on the pedestal in any suitable arrangement, and also in the grooves in the preset position on the soil. In the light source device 200a, the groove may be a pit on the surface, or the groove may be a pit on the surface or a clear effect. Parallel adjuster 212 can adjust the illumination, Q"it!'s κ or divergent rays to the parallel ^ near-flat (four) beams required for projection display. Of course, the light source part 2G0 (or the equivalent (four) device 2〇〇a) two L 2 includes only the other 1 force device's functions such as the recycling of the external light, or from the illumination source The spectral components of the light are reported. Further, as shown in Fig. 4B, the light source portion 200 of the present invention may also be in the form of a light source device 2GGb. The light source device 2a in the fourth diagram is mounted in a concave form, such as a pendulum, in the light source device 200b, and the mounting base is formed into a concave shape. The shape of the concave surface can be selected, for example, as a hemispherical or parabolic fabric. Similarly, the led wire can be wired in the form of a recessed towel on the base = preset position on the base. In addition, if you want to cry θ Ai Ming's twist 'can also increase the concave side of the illumination source 21〇b to the side wall of the homogenized 21丨 increase one or more 1^1), these 1^1:) can In the form of: or a plurality of rings (two rings in the fourth B diagram), the t-light line around the illumination source is distributed at the neck side wall of the illumination source 210. Source As shown in Fig. 4C, the light source portion 200 of the present invention may also take the form of light and immersing 200c. The light source 2〇〇c includes an illumination source 21〇 and its pedestal, and a light-transmitting protective member 22〇 is encapsulated on the side from which the light is emitted, and the protective member 22 〇槿 the incident light side 220a and the outgoing light side 22〇b The light control junction 23 is integrally formed, that is, the light control element 105 is constructed by the light transmissive protection member 220 and the light control structure 200905358 therein. For ~ use the lighting source package (four) as a guarantee ~ step to reduce the volume ' can also be directly 檇 projection projection display applications, need to do the best. As mentioned above, in order to fit the volume of the part. Conventional projections are used to reduce the light guides, scales, and uniforms of the various components of the projection device. The homogenized materials are divided into the 'parallel adjusters of the fourth lens and the fourth lens. . In contrast, the fourth c-closed embodiment can also use the parallel adjuster 212 and the like to integrate the homogenizer 21Ϊ in the _^= form and reduce the homogenization as much as possible to control the read 105. +, can be in the volume of the data. In order to improve the utilization of light energy, the wafer 240 may have at least a reflective surface and a surface of the pedestal, both of which have such anti-sense light on the surface. Recycling, excellent optical coating layer, this layer can reflect 2 ° reflection _ as a better way is achieved through the above semi-optical mineral film, but; 5 瞪 瞪 谌 , -, in the wafer and its The surface of the pedestal forms a reflective L-structure. For example, the reflective film structure formed by the south-low refractive index film material is substantially a photonic crystal structure. The surface of the luminescent wafer has a multilayer interference optical film layer, for example, the optical film layer has The illuminating crystal # has a high transmittance in the emission spectral band and a high reflectivity in the remaining bands; and the portion of the pedestal that is not covered by the illuminating wafer has a view on the entire visible band. A film with high reflection characteristics. These S-scientific layers reflect back the light reflected back from the light system and reuse it, thereby increasing the optical efficiency of the system. Further information relating to this can be found in the Chinese Patent Application No. 200610140331.0 filed on Jan. 27, 2006, which is hereby incorporated by reference in its entirety in its entirety in its entirety in its entirety in Note that the sub-array array and the pedestal surface can be used in the illumination source section of Figure 4C. The illumination source section in Figure 4B is also ζ, 射 ^ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . σ 7 " ▼ has such a reflective structure to form the above-mentioned reflective structure, which may include the following steps: a) cleaning the substrate, the art, the pattern, the cross-sectional area, the high refractive index, the chemical vapor deposition a multilayer film of a material (for example, Si〇2); c) a yellow light S1 and a low refractive index formed by exposure, development, setting of a photoresist, and (4) resistance as a mask === Pattern μ pulp money) and go to the photoresist. And, on the second, the money engraving (for example, by electricity to repeat the multiple times, in the shellfish, yellow light process and the remaining steps can be constructed. In addition, depending on the situation, and the entire surface of the film layer After the surface flattening structure has been completed, the step of using the plasma chemistry + ^ surface leveling can be carried out by means of 8 calls, and after the iron = ? two product, a thicker film is deposited on the surface (for example, now. /Ten mechanical grinding (CMP) method to smooth it to practical semi-conducting:: the sequence and materials, parameters are only; the technical staff is still within the spirit and scope, the field is subject to change, force The processing method of the eve can also constitute other work v for the above steps: t=r recognizes some of the steps, from the semiconductor process mentioned above: 4: the same ^ _ and other work The adjustment and structure function as before (4) light parallel element receiving structure can also include field mirror function, etc. Light control 疋4 film or pattern structure or photonic crystal structure 20 200905358, etc. For example, in order to achieve light homogenization , the pattern structure can be made A structure having a ocular lens shape or an aspherical envelope. Depending on the requirements of the light source portion 200 of the projection device 1 and the nature of the illumination source 210 to be used, different light control elements 1 〇 5 can be correspondingly designed to The light emitted from the light source portion 2 can satisfy predetermined optical properties 'eg, parallelism, homogenization, polarization state, monochromaticity, beam shape, beam diameter, etc.. For example, conventional mineral film technology and semiconductor process, The desired light control element 105 can be formed on the protective member 220 itself. In the embodiment of the fourth c-figure, a binary optical technique can be employed, on the incident light side 220a and the exit light side 220b of the protective member 22A. Forming a pattern structure, that is, at different positions in a plane orthogonal to the direction of propagation of light, the thickness of the protective member 220 is different, thereby forming a pattern of "relief" shape with low undulations. Different relief pattern configurations can be formed to have different optical properties. The emitted light, for example, by adjusting the phase of the incident light incident on each part of the pattern construction, the divergent incident light can be constrained to be flat The outgoing light of the line can achieve the effect of parallel adjustment and adjustment of the numerical aperture; by adjusting the phase of the incident light of each part, the light intensity of the outgoing light can be evenly distributed on the outgoing light side 220b, thereby achieving the purpose of homogenization. An embossed structure for controlling different optical properties is integrally formed on the incident light side 22a and the outgoing light side 22〇b of the protector 220, respectively. For example, a embossed structure for parallel adjustment is formed on one side, and the other side is formed on the other side. Forming a relief structure for homogenization. Alternatively, the relief structure can be integrally formed on only one side while achieving control of different optical properties such as parallel adjustment and homogenization. It is also possible to form a multilayer structure of the protective member 220, incident light in each layer. Side 22A and/or exit light side 220b form a relief structure to achieve the desired function. In addition to the binary optics, a photonic crystal structure can be used to form the 200905358 into a light control structure. In fact, the above binary optical method can also be regarded as a special case of photonic crystal. The protective member 220 is formed with the photonic crystal structure by attaching a photonic crystal structure on at least one side of the protective member 220 or replacing at least a portion of the protective member 2 = with a photonic crystal. By periodically distributing the light from different refractive index portions, it is possible to ^ == the r crystal structure is realized by a semiconductor; =: into a periodic structure. June 2006 qn α , θ Ν〇 · face (four) 咖月中 曰 曰 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国 中国For 2, the same, because it is launched in accordance with the requirements of the optical system 'to the need of the conventional projection device, the two 5 first reduced the very good calibration lens, etc., so can significantly and first, the reflection structure of the illumination source It also increases the volume of energy used; the electronic devices are very important. The scoop utilization, which illustrates the projection intent of the present invention for the sixth figure. The recovery of the light-emitting diode wafer from the wire can be carried out by using a type of fixing: considering that the surface of the light sheet 2 and the X-ray body of the base 1 can facilitate the positioning of the wafer in the same plane. At the same time, at least one of the base 2 and the base pedestal i is mounted on the surface of the wafer-emitting diode. For example, light emitted by a fully dielectric high- and low-refractive-conducting light-emitting device has a high reflectance for the other spectra of 22 200905358. The transmission spectrum can be as shown in the seventh figure, the curve 101 corresponds to the transmittance of the optical film layer on the red light-emitting wafer, and the curves 102, 103 correspond to the green and blue light-emitting chips, respectively. It should be noted that these curves are only examples, and the actual transmittance spectrum f is adjusted according to the emission spectral characteristics of the corresponding optical wafer. The optional high refractive index medium includes, but is not limited to, Ti〇2, Zr〇2, ZnS, Hf〇2, Τ&2〇5, 灿2〇5, etc. The optional low refractive index dielectric material includes However, it is not limited to: Si〇2, ^F, LiF, ThF4, cryolite, and the like. Please refer to the sixth figure 'on the phantom surface (excluding the area covered by the LED chip 2). The full-band reflection film layer 4 has a high reflectivity, and the film layer has a metal film layer of the rate. 'Examples: aluminum, silver, enamel, etc.' can also be full; electricity: f: reflective film 'or metal and medium (10) combined film system. For a detailed description of these = step-by-step, see Tang Jinfa, Zheng Quan, "Application of Thin Films, in order to make the reflection of these optical film layers substantially specular reflection, I find that the surface of the light-emitting wafer and the base is close to the optical mirror. . Therefore, the fun ‘some ^, 刖 must be flattened on these surfaces. Commonly used surface flattening; including, but not limited to, chemical mechanical polishing (,), grinding, molding, re-integration, pure mechanical polishing, sol-gel self-flow equalization, and the like. Of course, the above-mentioned film 3 and the reflective film layer 4 may be separately present, but the hair may be made lightest (four). ^ The light-emitting diode chip 2, the base base 1 and the optical film layer (the light film 3 and the reflective film layer 4) are combined to form an illumination source 21 for image display having a light recovery device. Of course, it should also include sealing|breaking glass; the relevant line is not related to the present invention, and will not be described in detail herein, nor drawn in the drawings. 23 200905358 The 8th figure shows the sacred + % crystal projection display system, __ LED light source is used for the color of the stone base liquid transparent material, and the model light rod 12 can be - direct use The material is opposite to the air interface, or does not shovel the film, glass, plastic, resin, etc.; wedge type, Μ transparent material, such as broken and surrounded by a high-reflection film - can be a hollow channel, multiple reflections of light The role of ^= is mainly to use its peripheral wall; in addition, because of its people, 'the intensity and color of the beam to achieve a homogenized beam of light to play a partial parallel adjustment, as 2 = structure, you can The emitted light passes through the wedge-shaped light bar 12 = 19 from the illumination source 210 of the present invention, and forms a white spot of a uniform shape and a uniform size and is partially parallel-adjusted, wherein the s-bias; The effective surface of the liquid crystal device 20 is similar to the polarization component, and is reflected back by the Korean sputum. After passing through the quarter-wave plate, the linearly polarized light passes through the field and the polarizer 13 is passed through the field. These S colors Shi Xiji liquid crystal device / on. After the mirror 310 is refracted to the modulation of color 2 ,, Changed to ^^ divided by color Shihuaji liquid crystal device over-polarization beam splitting prism 3ημΓ=, and with image information, and then transmitted through the display. U, broken projection objective 340 projected out, the projection remains s age = no color The color modulated light of the color fiber device 2 G is still shaped by the aperture D ^, and is again refracted by the polarization beam splitting prism 310, and then returned to the wedge # I because the illumination source 210 of the present invention can reflect most of the injection into the minute: The equivalent of the return-block mirror can reflect that i for a long time, and is equivalent to improve the luminous intensity. Effectiveness. After using the LED light source of the invention, the light can greatly improve the profit 24 200905358 曰The ninth diagram illustrates another embodiment of the LED light source according to the present invention for a color germanium liquid S-projection projection 7F system. Similarly, the light emitted by the illumination source 210 of the present invention is passed through the wedge-shaped light bar 12. After homogenization, it becomes white light, and then passes through the field lens 14 to reach the polarization beam splitting prism 31〇, and is divided into two beams by the beam splitting prism, one beam of s-polarized light is irradiated onto the color germanium-based liquid crystal device 2〇, and the other beam of p-polarized light is Irradiation to another color silk liquid crystal device 3 ( The light modulated by the color = base liquid device 2 = and 3G, respectively, changes its original polarization shape 1 'with image information' and then passes through the polarization beam splitting prism 31 to the projection objective lens 34 〇 projection image When the image information on the color 7-based liquid crystal devices 2Q and 3G is the same, the image is projected as a normal two-dimensional image, but can provide a richer color image than when using a single-color color liquid crystal device. And when the image information on the color second-based liquid crystal devices 2G and 3G respectively correspond to the left-eye vision and the eye-eye disease, the three-dimensional three-images can be projected. The rest are not used by the color-based liquid crystal device 20 The 30-modulated light is reflected into the wedge-shaped light bar 12 again after passing through the polarization beam splitting prism 310 after being reflected by the color-distributing stone-base liquid crystal devices 20 and 30, because it has not changed its polarization (4). Similarly, the Lai County 210 of the present invention functions as a block mirror, which can reproduce the light partially, thereby greatly improving the light efficiency of the entire projection system. In the LED % source of the present invention, the surface shape of the base base may be a curved surface or a polyhedral surface, in addition to being planar, so that the light emitted by the base can be more effectively homogenized, and at the same exit aperture, this A three-dimensional structure can be more advantageous for heat dissipation of the wafer. The tenth diagram illustrates a cross-sectional view of the illumination source 210 of the present invention when the base is curved. The surface normal of the light-emitting diode chip 2 drawn in the figure is substantially the same as the surface normal of the curved surface of the base base, but 25 200905358 in actual use, the two may not be the same, that is, there may be an angle between the two. The range is, for example, between 〜 and 45 degrees. The declination may be the same or different for each wafer in the case where more wafers are provided. However, our working principle is basically the same as above, and the detailed description thereof is omitted here. (II) Optical engine 300

As a preferred embodiment of the present invention, reference is made to Figures 5A through 5, which schematically represent the optical engine 3 by a beam splitting device (e.g., polarization/knife prism 310) and two reflective light modulators. 32〇, 33(), and may include a projection objective 34〇 as appropriate. The incident surface of the polarization beam splitting prism 31 (), the light source portion 2GG is provided with a reflection type 330 at each of the two exit surfaces, and the optional projection objective lens 34 is disposed at the most light output surface of the polarization beam splitting prism 31A. The reflective light modulators 32〇, 33〇 of the present invention are preferably colored stone base-light liquid crystal devices, such as the color germanium liquid crystal device 2〇 shown in the ninth figure, the port 3〇, but other light adjusters can be used. For example, a digital photo processor (d ^ polycrystalline litho device (HTPS) or liquid crystal paste, may also be a combination of the above different types =. The light adjuster may also include polarization g selection, spectroscopic: reflection, refraction, etc. The functional optical structure 'for example, can be packaged with the above-mentioned package structure (4) of the above-mentioned "Yuyue Yueyuan training" package: the package structure towel of the device. Optimally, the semiconductor Weiji liquid crystal A micro-filter array = color 矽-based liquid crystal device formed of, for example, SiNx and Si 〇 2 is produced. The applicant of the present application has a Chinese patent application N of U ^ in July, 1976. .5 describes the production method of the two =, "This is a reference to the application of the "inside or the semiconductor workman 26 200905358 蛰 combined with the optical process (for example, the yellow light process on the glass substrate, Re-plating using conventional optical processing techniques such as ruthenium plating 'The lift_〇ff process can then be used to integrate the various color splitting and t-light systems used in the pixels of the color 矽-based liquid crystal device on the package glass of the 矽-based liquid crystal device, reducing the volume and lifting the volume. Quality, it is also possible to extend the function of the projection system to the three-dimensional/six-primary color display by using two 矽-based liquid crystal panels. The light from the light source portion 200 reaches the polarization beam splitting prism 31〇, and is divided into two beams by the polarizing knife optical prism 310. The beam-reflected e-polarized light is incident on the reflective light modulator 320, and the other beam is transmitted. The polarized light is incident on the other reflective light modulator 330. The light is modulated by the reflective light modulators 32 and 33, respectively. The passing light changes its original polarization state, and carries image information, and then is projected and projected through the polarization beam splitting prism 310 to the projection objective lens 340. As described above, the transmission end of the conventional MacNeille type polarization beam splitting prism It is difficult to meet the imaging needs, and the image-type polarization beam splitting prism

In CN1570704A, four Shih (6) 偏 type partial synthetic rice-shaped combined polarization beam splitting prisms are used to make the volume larger. The fifth A diagram shows the structure of the sub-wavelength grating 315.

A schematic structural view of the material of the dielectric grid 315b. As shown in Fig. L, the dielectric grid 315b can be formed with the base material 27 200905358. The material which is not the same is grown on the base material by the film 4 county: using the phase growth technique Visible = 疋 visible or infrared light, etc., in the projected duty cycle (four) two: length = material refractive index is nG: xnG + (1- /) nTE = V? " ηΤΜ

The light of r+ 0-/), the e-light is neon, and the refractive index of the knife between the dummy wires is Η is air or vacuum). Since at this point, your wavelength grating 315 is equivalent to a negative uniaxial crystal with its optical axis 3 ΓΓ 313. According to conventional projection display applications, such as the application of the second, the sub-wavelength grating 315 can be made up of a refractive index phase II. - Between the embossed pattern width phase; between two l 〇 nm ~ 60nm, the depth can be between 3 〇 nm ~ 2 〇〇〇 leg grid, period and pattern width in the sub-micron order (such as tens to several Baica) The grid is called a nano grating. First, the fifth B diagram does not show the refractive index profile when the optical axis 313 is perpendicular to the incident surface and the light is incident on the sub-wavelength grating 315. It can be seen that 28 200905358 piece rate η satisfies ^Sin45〇 (referred to as total reflection bar reflection, and oblique ί piece)', then the sub-wavelength grating 315 light all the above matching strips: take, thereby achieving the purpose of polarization splitting. The reflectivity of the twilight is the condition that when the difference between the two causes the refractive index of the material to be _, the requirement of the grating and the medium system is considered to be 1 (four). Although the matching threshold can also be matched according to the projection rate matching process. For example, 2% or 〇.5%. The above-mentioned refraction effect is also lower, and the lower the imaging rate is, the better the imaging of the entire projection system is. The spectroscopic prism of the long grating 315 is the most = 6:317_. The two optical prisms f, 3i7 may be two equal-sided isosceles right-angle prisms, and the two optical prisms 316 are formed into cube prisms by the right-angled triangles of the two opposite sides of the plane. Polarization beam splitting prism training. The two optics 1, 317 can be made of a transparent material, for example, having a refractive index of not less than "such as glass, plastic, or polymer." The sub-wavelength grating 315 can be fabricated on a flat dielectric substrate by a +conductor technique. And then use the precursor _ to the inclined surface of the optical prism 316 and / or 317; also 2 the slope of the optical prism as the base, relying on the inclined surface of the film, _ or any two prisms. The cube prism is in, the surface and the exit surface can be transferred according to the need of the increase _ (when the refractive index of the optical prisms 316, 317 and the refractive index of the sub-wavelength grating 315 are satisfied by the above-mentioned full-reverse parts and matching conditions In the defined relationship, the cube ^ mirror is an almost perfect polarization beam splitting prism 31 (), both; Xiao except the tradition 29 200905358

The MacNdUe type polarizing beam splitting prism (4) has a difference in light ratio, and does not affect the portability due to the increase in volume caused by the combined prism. The applicant of the present application described the sub-wavelength grating 3 in this embodiment in the Chinese patent application entitled "Polarization of a polarization-distributing element and a projection display device using the same" on January 29, 2007. 5 and the polarization beam splitting prism are more detailed, and the full (four) capacity of the application is incorporated by (4). Theoretically, if a birefringent material having an appropriate refractive index and an incident/exit dielectric material can be found, These materials can be directly used to form the beam splitting prism, but in fact the refractive index (4) satisfactorily conforms to the total reflection condition and (4) the condition of the celestial material is difficult to find _ i this financial system transfer body #形钱 wavelength light thumb 15. A prism having good spectroscopic characteristics is constructed by manually manipulating the properties of the crystal (especially the refractive index characteristic). (10) Implementing the polarization splitting prism reflective light modulators 320 and 33 on the sub-wavelength grating 315 When the image information is the same, the ordinary two-dimensional image is 'but because both the 0 light and the e light can be used: (4) The use of the disk is greatly improved compared to the case of using only transmitted light energy. Compared with the use of four M Fu 1e-type polarization beam splitting prisms combined with non-polarization domain split mirrors, the volume and cost are greatly reduced, and the electronic device application can be used. In addition, the two reflective light adjustments can also use different primary colors, for example One uses red, green, blue, three, and yellow 'in this case can provide an image that is more than the use of the node == ϊ rich; and when the reflection of the light tones is different ~ / image A 疋 corresponds to The left eye vision and the right eye, the eight doors can also project stereoscopic three-dimensional images. The Chinese patent Shen Xinkai cm570704A discloses more 30 200905358 related content related to 3D/six primary color display, and this manual refers to its content by reference. The optical engine 300 may further include a projection objective 340 that receives the modulated light output from the polarization beam splitting prism 310 and then projects the incident light to the outside of the portable electronic device in an enlarged manner. For example, screens, walls or vehicles (such as cars, boats, etc.) inner walls' or even seating surfaces. Optimally, the projection objective 340 can be fine-tuned for better position. Shadow effect. Of course, in the case of appropriate optical path design, the projection objective lens 34 can be omitted. - Please refer to the fifth A®, select the refractive index of the optical prisms 316, 317 n = 1.87' and the relief part of the sub-wavelength grating The material η(}=2 5, the light-bending period is eight=100·', and the line width L of the relief portion is L=32 nm, and the deep portion of the relief portion is «40-sided. According to the above sub-wavelength formula, the polarization beam splitting prism 31〇^-0.32 can be obtained. ' no-i.64,ne=U7. It is the rate curve when incident at the corner angle: the tenth-picture shows (because it is a full dielectric material, so = the reflectivity is equal to the K penetration rate, in the figure In the wavelength range of 420-680 nm, the average extinction ratio at the transmission end is 1300: and the average extinction ratio at the reflection end is 16 〇: j, : required. If the antireflection film relative to the sub-wavelength grating 315 is added to the two contact faces of the light peach and the optical "3:317", then the light transmittance can be increased. For example, at the sub-wavelength light The material setting of HQ· is increased by _, then the two polarization states are as follows: 1 and this is already a fairly complete twelfth figure illustrating the polarization beam splitter according to the present invention for a color liquid crystal projection display system - Embodiments. Light emitted by illumination ^ 200905358 The multiple reflections of the wedge-shaped light bar 12 are homogenized and partially parallel adjusted, and then passed through the field lens 14 to reach the optical prisms 316, 317 and sub-wavelengths of the present invention. The polarization beam splitting prism 310 composed of the grating 315 is divided into two beams by the polarization beam splitting prism 31, one beam of reflected e-polarized light is irradiated onto the color Shihuai liquid crystal device 2, and the other transmitted polarized light is irradiated to Another color 矽-based liquid crystal device 3 is turned on. The light modulated by the color 矽-based liquid crystal devices 20 and 30, respectively, changes its original polarization state, and carries image information, and then passes through the polarization beam splitting prism 310 to the projection objective lens. 340 projection imagery. When color 矽 based LCD When the image information on 2〇 and 3〇 is the same, the ordinary two-dimensional image is projected, but an image richer than the color when using a single color 矽-based liquid crystal device can be provided; When the image information on the color 矽-based liquid crystal device 2〇 and 3〇 corresponds to the left-eye vision and the right-eye vision, respectively, a stereoscopic three-dimensional image can be projected.

It can be seen from the circular system that the incident beam, incident on the polarizing edge, 31G, is not a parallel light of the Q degree angle. In fact, = we do not need parallel light in practical applications, * is to use - fixed:: concentrated beam, the size of the convergence angle can be calculated by the number of apertures (F number) of the beam: = in the embodiment, when incident The beam is the converging beam of F25. The permeability curve is shown in Fig. 13 (note: this is the one that already contains the film (10).). The extinction of the transmissive end and the reflective end is a sub-wavelength grating pattern that is transparent, and the other patterns are also long grating patterns. The light 'fourth picture is a two-dimensional subwave; the fifteenth picture is It is m313, a refractive index profile at the time of incidence at a direction perpendicular to the plane of the substrate. You can see 32 200905358 As long as you choose the right human refractive index, it also has the function of polarization splitting. It should be noted that since the gaps between the patterns are small slits of the order of nanometers, they are extremely easy to be in the water of the towel, resulting in a decrease in the refractive index. Therefore, it is preferable to use the sealing material P4' around the joint surface of the two optical prisms, for example, to combine the two prisms in a vacuum or dry nitrogen gas, and finally to seal the periphery with a sealing material. In order to further improve the performance, or to reduce the process difficulty reasonably, it is also possible to sandwich more than one sub-wavelength grating in the two prisms. (ΠΙ) Signal Processing Section 400 The third diagram of the digital processing is performed, and the signal processing section 400 controls the reflective light modulators 320, 330 in the optical engine 300. The signal processing section 4A may include processing means such as a central processing unit (CPU), a dedicated integrated circuit (ASIC), a digital processor (DSP), etc.; storage means connected to the processing means such as RAM, ROM, etc.; and reflection The output of the light regulators 32, 330 is connected; it may also include setting means or the like to allow the user to adjust the display effect. In order to reduce the size, power consumption and cost of the system, it is preferable to allow the signal processing section 4 to utilize as much as possible of the above various components already existing in the portable electronic device in which the projection apparatus of the present invention is placed. Signal processing portion 400 can use similar control and processing as in prior art projection devices, for example, matrix control techniques can be employed to deliver pixels to corresponding pixels of the light modulation device. As described above, the signal processing portion 400 can provide the same or different pixel signals to the two reflective light modulators 320, 330 as needed. As can be seen from the above description, the various components of the present invention are designed to take into account both the reduction in volume and energy consumption, which are critical to the sturdy electronic device. 33 200905358 The projection apparatus according to the above embodiment is very compact and can be built in a portable electronic device. For example, the size of the polarization beam splitting prism 310 is usually about 10 mm x 10 mm x 10 mm, the area of the two color stone base liquid crystal devices 20 and 30 can be about 1 Omm x 1 Omm, respectively, and the size of the light source portion 200 can be about 1 Omm x 10 mm x 5 mm, so that the entire projection The volume of the device is less than 10mmxl0mmx20mm, and it can be built into the above-mentioned electronic game equipment such as electronic game machines and mobile phones. Of course, these dimensions can also be increased or decreased depending on the actual situation (e.g., the size requirements of the electronic device, the luminous intensity of the light source, the display resolution, etc.). Meanwhile, according to the projection apparatus of the above embodiment, both the 0-light and the e-light polarization states of the light emitted from the illumination source are utilized, and the light reflected from the respective optical surfaces back to the light source portion is also recycled, and due to the optical element The number is greatly reduced and the reflection loss of each surface is correspondingly significantly reduced (for example, it can be easily found that the projection device according to the present invention has a dielectric interface in each color white light path compared to a conventional prior art projection device. The number of these devices has been reduced by about ten, so this kind of projection device minimizes the waste of light energy and can use energy as high as possible to meet the needs of portable electronic devices. In addition, compared with the three-piece structure of the prior art, the number of components required in the components such as the light source portion, the 矽-based liquid crystal display panel, and the = vibrating prism is greatly reduced, and can be realized by semi-conducting art. Because of the production, the mis-projection I can also significantly reduce the cost. According to the present invention, the portable electronic device can be used as the ir component using the above projection apparatus. Of course, in addition to the above-mentioned projection device, the electronic device can be used as a display device with a conventional display device, such as a small plastic or a literary enamel. In this case, it is preferable to make the display device and the projection device 34 200905358 share the signal processing portion 400 to reduce the size, cost, and power consumption. For example, the signal processing section 400 can selectively supply a drive signal to the projection device and the display device. When the signal processing section 4 outputs the driving signal to the optical engine 300% 'the user can view the image through the projection device; * When the signal processing section 400 outputs the driving signal to the display device (for example, a liquid crystal display), the user can display The device to view the image. Of course, the signal processing boring tool 400 can also simultaneously output the driving signal to the optical engine and the display device if necessary, and at this time, the image can be displayed by the display device and the projection device at the same time. Figure 16 is a diagram showing a portable electronic device, a schematic function _ according to another embodiment of the present invention. In order to make the line compact to improve the cost and reduce the cost, the implementation of the optical spleen can make the (four) projection lens slanted and can be moved to the output surface of the polarization beam splitting prism 310; It can also be removed from this position. When it is necessary to use the projection device to move the projection lens 54G to the above-described polarization beam splitting prism 5 310 ^, and when the display device is to be used for display, the panning ==::: so that the image information is only displayed. In the electronic device 示 3 3 3 也 也 也 也 也 也 也 也 也 也 也 也 也 郷 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 The projection can be displayed in the case of the display shifting (that is, in the case where the projection lens 540 or the projection lens 540 is not substantially fixed) 35 200905358, the technical path selection crying member 550 can be provided on the wheel-out light path of the polarization classifying mirror 31G. For example, a rotatable mirror or an optical switching element can be selected to output whether the image is output to the outside of the device and the direction of the output, etc. The outer picture is: in the middle: ten picture ^ /, the younger brother seventeen picture is not set The traditional small screen: ΐ = 檇 type electric blasting machine as an example, the seventeenth and sixty-fifth figure is an example of a displayable digital camera. Of course, the various other aspects of the present invention can be played as an electronic game machine, multimedia player. Device, etc.), digital camera , personal digital assistant (genus can be set according to f or (four) set _ device. The armored electronic game machine also has a 〇〇 中 中 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 i coffee direction 敖 65. As described above, the route of the image output by the projection device or the whole time can be observed by the user. It is not necessary to adjust the direction 6:; i shell _A to improve portability = number: Realize three-dimensional: two first regulators in the second engine provide different pixel letter + dimensional stereo display, @魏力 is very beneficial for game applications. ^ w ^ _ 檇 digital camera shell 6 _ towel has The built-in optical path is not included in the display device (not shown) and the casing _β is also provided with seven Β, 650, lens 6 〇 2 and operation control device. In the tenth example == example, the casing 6 _ with a display screen 6〇3, can be root function. Wheel (4) for the Pu Lai number of the display screen similar to the display of the operation control device shown in the β diagram includes shutter 604, operation 36 200905358 by name ugly 605, guide Wheel ancient & line control. The signal processing unit can operate the optical digital camera to provide images of different primary colors. Plain: ===Light: better viewing quality of parts. Basic color, such as ability to provide, only the above-mentioned disclosed schema, ^, who is skilled in this art can be broad in scope according to the above examples. The spirit of the invention and the following definitions 4 [Simple description of the diagram] The figure is a schematic diagram of the first two-pieces of the technology, such as the one-piece, one-piece, and one-piece jersey device. ί:=: LED light source for display A schematic diagram of a second embodiment of the second embodiment of the present invention. Figure 4 is a structural view of the light source portion of the projection device of the present invention. The schematic diagram of the listening device of the present invention. The structure of the dichroic prism of the subwavelength grating of the present invention is a schematic cross-sectional view of the illumination source of the projection device. The transmission spectrum of the optical film layer. example. An illuminating source of the illuminating device is used for the implementation of the projection device. The ninth drawing is an illumination source for the projection and transposition of the present invention for the projection of the agricultural device 37 200905358. The tenth figure is a schematic view of a curved base base of an illumination source of the projection device of the present invention. The eleventh figure shows the transmittance curves of the neon and e-light of the projection apparatus of the present invention. Fig. 12 is a view showing another embodiment of the polarization beam splitting prism of the projection apparatus of the present invention. Fig. 13 is a graph showing the transmittance of the pupil and e-light when the projection device of the present invention is used for the incident light. Fig. 14 is a view showing the structure of a two-dimensional sub-wavelength grating used in the optical engine of the projection apparatus of the present invention. The fifteenth diagram is a schematic diagram showing the refractive index anisotropy characteristics of the two-dimensional sub-wavelength grating in Fig. 14. Figure 16 is a functional block diagram of a portable electronic device in accordance with the present invention. Fig. 17A is a view showing the appearance of the first portable electronic device according to the present invention. Fig. 17B is a view showing the appearance of a second portable electronic device according to the present invention. [Description of main component symbols] Γ base 2-1 red light emitting diode 2-2 green light emitting diode 2-3 blue light emitting diode 100 projection device 105 light control element 200 light source parts 200a, 200b, 200c Light source device 210 illumination source 211 homogenizer 38 200905358 212 parallel adjuster 220 protector 220a incident light side 220b exit light side 230 light control structure 210a wafer array surface 240 pedestal surface 300 optical engine 310 polarization beam splitting prism 313, 313 'Axis direction 315 Subwavelength grating 315a Base material 315b Dielectric wire grid 316, 317 Optical prism 320, 330 Reflective light adjuster 340 Projection objective 400 Signal processing part 600A, 600B Housing 601A Projection device 603 Display screen 604 Shutter 605 Operation button 606 Navigation direction key 650 Optical path selection device 1 Base base 39 200905358 2 Light-emitting diode wafer 3 Optical interference film 4 Reflective film layer 101, 102, 103 Transmittance curve 11 Quarter wave plate 12 Wedge light bar 13 Incident Polarizing plate 14 field lens 20, 30 color 矽 liquid crystal device 40

Claims (1)

200905358 X. Patent application scope: 1. A projection device comprising: a light source portion, wherein the light source portion comprises an illumination source and a light control component; an optical engine, wherein the optical engine comprises a polarization beam splitter and two reflections a light modulator; and a signal processing portion for controlling the two reflective light modulators for light adjustment; wherein the polarization beam splitter comprises a sub-wavelength grating and two optical prisms, the sub-wavelength optical thumb system is formed by semiconductor technology On the surface of the two optical prisms, and the sub-wavelength grating and the two optical prisms are configured to separate the first polarization state and the second polarization state which are orthogonal to each other and to respectively generate light incident on the sub-wavelength grating To the two-reflective light modulator. 2. The projection device of claim 1, wherein the semiconductor technology comprises one or more processing steps selected from the group consisting of: deposition, sputtering, ion implantation, growth, exposure, etching, lifting Separate, develop, clean, polish, and remove glue. 3. The projection device of claim 1, wherein the illumination source comprises a base and an array of light-emitting diodes mounted on the base. 4. The projection device of claim 3, wherein the base has a flat surface or a concave shape. 5. The projection device of claim 3, wherein the array of light emitting diode chips is disposed in a recess in the base. The projection device of claim 3, wherein the surface of at least one of the array of light emitting diode chips and the base is provided with a reflective structure. 7. The projection device of claim 6, wherein the light reflecting structure comprises a plurality of layers of interference optical film disposed on a surface of the array of light emitting diode chips, the optical film layer having the light emitting diode The emission spectrum band of the bulk wafer array has a high transmittance, and has high reflectivity characteristics for the remaining wavelength bands; and a film layer disposed on a surface of the base substrate that is not covered by the light emitting diode chip array, and The film layer has high reflection characteristics for both visible light bands. 8. The projection device of claim 6, wherein the reflective structure comprises an optical mineral film layer. 9. The projection device of claim 8, wherein the optical coating layer disposed on the surface of the LED array has a spectrum transmitted through the LED array and reflects other wavelength spectra. Characteristics. 10. The projection device of claim 9, wherein the optical coating layer disposed on the surface of the LED array is a full dielectric multilayer optical film. 11. The projection device of claim 6, wherein the surface of the base substrate outside the region in which the array of light emitting diode chips is disposed is plated with a high-reflection optical film layer of visible light. 12. The projection device of claim 11, wherein the highly reflective optical film layer is a high reflectivity metal film layer. 13. The projection device of claim 11, wherein the high-reflection 42 200905358 optical film layer is a combined film of a metal and a dielectric layer. 14. The projection apparatus of claim 11, wherein the highly reflective optical film layer is a wide-band reflective all-dielectric multilayer optical film. The projection device of claim 3, wherein the LED array comprises a plurality of LED chips, the LED chips are embedded in the base, and each The surface of the light-emitting diode wafer is located on a plane with the surface of the base. The projection device of claim 3, wherein the LED array comprises a plurality of LED chips, the LED chips are embedded in the base, and the base The surface of the base is a curved or polyhedral surface. The projection device of claim 16, wherein the surface normal of each of the light-emitting diode chips forms an angle with a surface normal of the base, and the angle ranges from 〜 to 45. between. 18. The projection device of claim 1, wherein the light control element comprises at least two optically functional structures. 19. The projection apparatus of claim 18, wherein the at least two optical functions comprise the following functions: homogenization, parallel adjustment, polarization adjustment, monochromatic adjustment, beam shape adjustment, beam diameter adjustment. 20. The projection device of claim 1, wherein the light control element is comprised of an encapsulation material of the illumination source and a light control structure therein. 21. The projection device of claim 20, wherein the light control structure is molded into the encapsulation material via semiconductor technology. 22. The projection device of claim 21, wherein the light control 43 200905358 structure comprises a binary optical structure. 23. The projection device of claim 21, wherein the light control structure comprises a photonic crystal structure. 24. The projection device of claim 22, wherein the light control structure has at least two optical functions, the two optical functions being respectively implemented by two pattern configurations, and the two pattern configurations are respectively disposed on the The incident light side and the outgoing light side surface of the encapsulating material of the illumination source. 25. The projection apparatus of claim 22, wherein the light control structure has at least two optical functions, the two optical power systems being implemented by a single pattern construction, the pattern being configured to be disposed on the illumination material of the illumination source. The incident light side or the surface on the outgoing light side. 26. The projection device of claim 22, wherein the encapsulation material of the illumination source comprises a multi-layer structure comprising a surface on an incident light side and/or an exit light side of each layer in the multi-layer structure. The pattern is constructed and the light control structure has at least two optical functions. 27. The projection device of claim 1, wherein the reflective light modulator comprises a liquid crystal on silicon (LCoS). The projection device of claim 27, wherein the color 矽-based liquid crystal device comprises a micro-filter array formed by semiconductor technology. The projection device of claim 1, wherein the sub-wavelength grating comprises a nano-grating. 30. The projection device of claim 29, wherein the nanograting comprises a transparent material or a wire grid made of metal. </ RTI> <RTIgt; Total reflection occurs at the grating, and the refractive index of the second polarization state in the subwavelength grating matches the refractive index in the optical prism. The projection device of claim 31, wherein the sub-wavelength grating and the refractive index of the optical prism match such that the second partial offset has a reflectance of less than 1%. The projection device of claim 1, wherein the light and the projection objective lens are used to derive the polarization. The image is projected in an enlarged manner. The projection skirt of claim 1, wherein the sub-wavelength grating is disposed between the two optical prisms. The projection device of claim 34, wherein the long grating is an all-dielectric grating. The projection device of claim 35, wherein the sub-wave m optical prism is disposed such that a polarization state incident on the sub-wavelength grating disk is totally reflected at the sub-wavelength grating, and a second state of the vibration state is orthogonal The polarization state in the sub-wavelength grating matches the chiral rate with the index of refraction of the prismatic prism towel. The projection device of claim 36, wherein the subwave=gate and the refractive index of the optical prism match such that the second polarization state has an infrared transmission rate of less than 1%. The value of the sub-wavelength grating of the projection device of the projection device described in Item 37 of the patent (4) is a periodic pattern formed by a transparent dielectric material having a refractive index of not less than 2.0. 45. The invention relates to a polarization beam splitter of an optical engine of a projection apparatus according to claim 38, wherein the sub-wavelength grating has a grating period of between 50 nm and 300 nm, the pattern The width is between l〇nm~60nm. The polarizing beam splitter of the optical engine of the projection apparatus of claim 38, wherein the pattern has a depth of between 30 nm and 2000 nm. The polarizing beam splitter of the optical engine of the projection apparatus of claim 34, wherein the optical prisms are each made of a transparent material having a refractive index of not less than 1.6. The polarizing beam splitter of the optical engine of the projection device of claim 41, wherein the two optical prisms are right-angled isosceles triangular prisms, and the surface of the triangular section of the two optical prisms is located The δ is again disposed, and the sub-wavelength grating is located between the opposite surfaces. The polarizing beam splitter of the optical engine of the projection apparatus of claim 42, wherein the sub-wavelength grating is glued to the opposite surface of at least one of the optical prisms. The polarization beam splitter of the optical engine of the projection apparatus of claim 42, wherein the sub-wavelength grating is directly formed by a mineral film force on at least a county surface of the optical prism. The ============================================================================================= The sub-wavelength grating is located on the opposite side of the prism. For example, please refer to the 45th item of the patent scope. 栌 栌 ^ 、 、 义 义 义 义 义 义 技 技 技 技 技 技 技 技 光学 光学 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少A transmission-enhanced film of air. 46 46 ' 200905358 If the scope of the application of the patent scope is the 48th polarization beam splitter, the surface of the optical engine of the projection device described by JL China Society is located on the surface of the triangle with respect to the prism of the first prism. Apply for a transmission-transmission film layer of a sub-wavelength grating. 49 Polarization beam splitter, which is the sealing material of the optical engine of the projection device described in the above. The two sides of the joint surface of the prism are / / used as the i The projection device of the item is set in the electronic device of the 影 裳 置 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , An illumination source and a light control: an optical engine 'where the light is a reflective light modulator; and a polarizing knife "and two light = processing portion" for controlling the two-reflective light modulator to perform polarization splitting 11 including - a wavelength grating and two optical prisms, a long grating system (4) semiconductor technology is formed on the two optical prisms, and the sub-wavelength grating and the two optical prisms are constructed as: light to the sub-wavelength grating The mutually orthogonal first to second polarization states are respectively separated and respectively incident on the two-reflective optical modulator, the portable electronic device described in claim 49, wherein: the processing portion includes The portable electronic device shared by the portable electronic device is called the portable electronic device described in claim 49, and the electronic device further includes a local display device. 52. The portable electronic device of claim 51, wherein the display of the local display device is controlled by the signal processing portion. 53. The portable electronic device of claim 49, wherein the optical engine further comprises a projection objective, the projection objective being switchable between at least a first position and a second position, the projection objective being located at the first At the time of position, light from the polarization beam splitting device is projected in an image magnification manner. 54. The portable electronic device of claim 49, wherein the portable electronic device is selected from the group consisting of a mobile phone, a portable computer, a personal digital assistant, a digital camera, and a digital video camera. , electronic game consoles, multimedia playback devices. f \ 48