TWI237730B - Color projecting display device capable of switching between three-dimension and two-dimension - Google Patents

Abstract

The present invention provides a color projecting display device capable of switching between three-dimension and two-dimension. Two pieces of silicon-based liquid crystal reflective display device having a micro color filter array are used to respectively project two projected images of linear polarized light having polarized directions orthogonal to each other. When wearing a pair of eyeglasses manufactured by polarized lenses, the two eyes of a viewer can see different projected images respectively so as to produce a three-dimensional vision. When the three-dimensional vision is not required, the device can be switched to a two-dimensional multi-color projecting display. Furthermore, the silicon-based liquid crystal reflective color micro display chip can enrich the color of the projected image and simplify the structure of the projecting display device.

Description

1237730 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is a three-dimensional / two-dimensional tunable 2 or switchable three-dimensional or two-dimensional display [prior art] In recent years, 'for high-definition television ( Many new display technologies, such as plasma, TFT display technology, DMD technology, and silicon-based liquid crystal reflective type, can provide color and large-area displays, but these display technologies are all It is the display effect of three-dimensional stereo vision. To this end, research has been carried out. For example, U.S. patent US 6, the surface of the display panel is affixed with micro-polarizer strips, and viewing glasses can make the left and right eyes see different drawing methods. But so far, these stereoscopic displays are not strong. In addition, the current LC0S used in display technology are all monochromatic, to achieve, 1 tree / only) color display complex optical system, Baiduzhi, 丄 ^, Baxian are first divided into three silicon-based projection LCD 磲 + ^ Λ These three beams of panel do not synthesize a color image. The disadvantages of such color miscellaneous, high cost, and inconsistent performance are that the inventor carefully and researched the color projection display device of the switched color projection display device based on the relevant experience of these missing products. HDTV) applications, the development of PDP technology • digital micro-mirror display (LC0S) display technology and so on. The display technology does not have many researchers on the Three Realms. 3 5 1, 2 8 0 It is proposed to use polarizers to make images on the LCD viewer belt, and the techniques for forming stereo vision are more complicated. Practical silicon-based liquid crystal display panels (shown usually use a set of red, green, and blue three-color light, LC0S), and then the display method has a more complex mechanism. And based on many years of manufacturing, research and cooperation

Page 6 1237730 V. Description of the invention (2) The application of the theory, and propose a present invention with a reasonable design and effective improvement of the above-mentioned defects. [Summary of the Invention] Another object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device for implementing color three-dimensional display with simple structure, high optical efficiency, low cost, strong practicability, and easy promotion. Features. Another object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, which can display colors more abundantly, vividly, and realistically, thereby improving image quality. A third object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, whereby a display device capable of switching between a three-dimensional three-dimensional color projection display and a two-dimensional six primary color projection display is used. The fourth object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, which uses a color silicon liquid crystal display panel (LCOS) to simplify the optical system and improve system reliability. A fifth object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, by utilizing a design of a color silicon-based liquid crystal display panel (LC0S) to eliminate image distortion and make it invisible to human eyes. Distortion of the image, thereby improving the image quality. According to the foregoing object of the present invention, the present invention is a three-dimensional / two-dimensional switchable color projection display device, including two dream-based liquid crystal reflective color micro-display chips with polarized color filter arrays, a polarization beam splitter prism group, and the like component. The two pieces of chip-based liquid crystal reflective color micro-display chip are input separately

1237730 Five inventions (3 ^ '--- Stereo image information of the same viewing angle, and then placed in the polarization beam splitting prism level yC |' s Jpn γ \, respectively, the exit position of the linearly polarized light in the upward direction, when the white Natural light: In the case of the Γ 4 polarization beam splitting prism group, two linearly polarized lights (S-polarized light and ρ-polarized light) orthogonal to each other in the f direction are projected by the polarization beam splitting prism component to the two silicon-based liquid crystal reflective color micro-lens. On the display chip, after the modulation of these two Shixiji liquid crystal reflective color micro-display chips, the polarization direction is changed = (S polarized light is converted to p-polarized light, p-polarized light is converted to s-polarized light) =: the respective colors on The image information is then combined by the polarization beam splitting prism. Two beams of light are output at the converging exit and projected and imaged by the projection objective lens. The imaging light is composed of two orthogonal linearly polarized light. When viewed In the case of glasses made with polarizers, the two m-direction perpendicular polarizers of Yanhai glasses, namely light polarizers, can only be seen in Figure 2 and a corresponding polarization direction. Of which-Shishiki liquid crystal reflective color micro display crystal On the image, a stereoscopic vision can be obtained.,

When the input image is the same in the two Shixiji liquid crystal reflective color micro-display chips, the device can also be switched to a non-stereoscopic ^ projection display device 4 so that the viewer does not have a polarizer. It can be viewed with a mirror 'and can have a greater chromaticity than a conventional projection display device. Especially when the two silicon-based liquid crystal reflective color micro-display chips _ ^ are conventional red, green and blue three primary color micro-color filter arrays, and the other ϋ has three primary color micro-cyans of cyan, yellow, and magenta. The color filter array can form a six-primary color display system to make the displayed image have a wider chromaticity range. 'It can present richer, more vivid and more realistic colors. J

Page 8 1237730 V. Description of Invention (4) In addition, except for a part of the illumination light projected on each silicon-based liquid crystal reflective color micro-display chip, which is modulated by the chip for projection display, the remaining part is reflected back to the illumination system according to the original optical path because the polarization direction is not changed. 'With a certain device, this part of the light can be reflected back and reused, thereby effectively improving the efficiency of light utilization. In order to enable your examiner to better understand the features and technical contents of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention. [Embodiment] As shown in the first figure, the present invention is a three-dimensional / two-dimensional switchable color projection display device, in which the polarization beam splitting prism group 11 is composed of four polarization beam splitting films 1 on the right-angle plane keys. Right-angle prism, glued in an X-shape arrangement. Rain sheet Shi Xiji liquid crystal reflective color micro display wafers 2 and 3 with micro color filter arrays are respectively placed at the exit positions of the P-direction and S-direction linearly polarized light of the polarization beam splitting prism group 1 1 (Shown), and input stereo image information at different perspectives. When the illuminated white natural light 5 hits the polarization beam splitting prism group 1 1, the polarization beam splitting prism group 1 1 divides into two beams S whose polarization directions are orthogonal to each other. The linearly polarized light 6 and the linearly polarized light 7 in the P direction pass through the polarization beam splitting film 1 twice to ensure the extinction ratio, and then irradiate the silicon-based liquid crystal reflective color micro display chips 3 and 2, respectively. After being modulated separately by the two wafers, part of the linearly polarized light with color image information is reflected, and its polarization direction is turned.

Page 9 1237730 V. Description of the invention (5) Check 9 0 ′, that is, light rays 8 and 9, pass through the polarization beam splitting prism group 11 again, and pass through the polarization beam splitting film 1 (transmission or reflection) twice to ensure the extinction ratio (ie contrast ), And after it is synthesized into a light beam 10, it is output through the convergence exit position of the polarization beam splitting prism, and is enlarged and imaged by the projection objective lens 4 for projection display. Since part of the light from the projected image is from the p-polarized light image on the wafer 3 and the other part is from the s-polarized light image on the wafer 2, the viewer can bring a pair of glasses made with a polarizer The two lenses of the glasses are respectively two polarizers whose polarization directions are perpendicular to each other, that is, the s and P light polarizers, so that the two eyes can only see the S polarized light image and the p polarized light image, respectively, so that It can form the two opposite positions of the two image materials. The optical effect of the second light prism set is not required to show the optical effect of the second display. It is the same. It is helpful to reduce the reflective color of the first silicon-based liquid crystal. When the input signals on the micro display chips 2 and 3 are completely the same, by adjusting the two display chip positions, the two projection images can be completely overlapped. At this time, the one-dimensional flat display image can be viewed by viewing the glasses. Image. Since this implantation does not require a pre-polarizing device, the system rate can be effectively increased. A schematic diagram of one embodiment of the invention. The polarization division of t is 1 1 疋 by four conventional polarization beam splitting prisms i 2 "M ,, m To combine. The working principle of β is combined with the polarization beam splitting prism group 11 in the figure ^. The complete :: f 疋 uses a conventional commercial polarization beam splitting prism combination, which has cost and large-scale production. The installation shown in the second picture * When you add some waves #, you can enter again

1237730 V. Description of the invention (6) v Improve the contrast of the image. For example, on the front surfaces of the display wafers 2 and 3, the two-t-crystal reflective color J effectively improves the wave plate when light rays with a certain taper angle are incident, but it is good (see US Patent 5,327,27). The contrast of ^ is decreased by 1 and 2 points are inserted. Mu u ^ ^ The polarizing beam splitting prism 1-knife wave plate can also effectively improve the image quality. Schematic diagram of the device for modification # & 丨 ::]. Its polarization beam splitting prism is also-: real I polarized light 2 3. This half-the wave plate 1 3. The role can rotate the c direction by 90. (you can To make = 'or to convert P-polarized light into s-polarized light). In this way, turn = I i to each silicon-based liquid crystal reflective color, and t from each of the Shiji-based liquid crystal reflective color 2; 3 t :: I Ϊ: The imaging light of 4 passes through -transmission and -reverse ft Ϊ Ϊ I ratio reaches the maximum I j and the extinction of the projection beam after combining the two imaging beams / Two-dimensional switchable color projection display ^ 咅 The cross-sectional structure i of the silicon-based liquid crystal reflective color microdisplay chip used. Type color micro display chip, which includes a silicon substrate wafer 2 1 having a product structure, a metal mirror array 2 2, a lower l-orientation layer 2 3, a liquid crystal layer 2 4, an upper liquid crystal alignment layer 2 5, and a transparent 11th Page 1237730 V. Description of the invention (7) Conductive layer 26, miniature red, green, and blue three-color color filter array 27, glass substrate 2 8 in which the silicon substrate wafer 2 1 and metal mirror array 2 2, lower liquid crystal alignment layer 2 3, liquid crystal layer 2 4, upper liquid crystal alignment layer 2 5, transparent conductive layer 2 6, glass substrate 2 8 are sequentially stacked and packaged in one body, only micro color filters are shown in the figure When the chip array 27 is located between the transparent conductive layer 26 and the glass substrate 28, it may also be located between the upper liquid crystal alignment layer 25 and the transparent conductive layer 26. The two liquid crystal alignment layers 2 6, 2 The interval between 5 is 0.5 μm to 10 μm, preferably 1 μm to 6 μm, and more preferably 2 μm to 4 μm. Each of the miniature red, green, and blue three-primary color filter arrays 2 7 One piece is made of multilayer dielectric optical film, which transmits red, green, and blue light, and Other spectra are highly reflective. The number, shape, size, and arrangement of these miniature red, green, and blue primary color filter arrays 27 are the same as those of the metal mirror on the silicon substrate 21 The number, shape, size, and arrangement of the pixels of the array 22 are consistent, forming a one-to-one correspondence. Each of the metal mirror arrays 22 can be used not only as a reflective layer of light, but also as metal electrodes. They are controlled by the addressing drive circuit so that they are respectively applied with different voltages. In addition, the gap 8 between the pixels of the miniature red, green, and blue three-color color filter array 27 is about 0 · 3 ~ Between 1 micron, the gap 8 is plated with a non-transparent plating layer, such as aluminum, chromium, nickel, copper, iron, zinc, titanium, gold, silver, starting, crane, hafnium, dendrite, junction, carbon, or Their composition can reduce light leakage. Firstly, the silicon substrate wafer 21 with a diagonal size of about 10 mm to 50 mm is firstly manufactured by C MOS process.

Page 12 1237730 V. Description of the invention (8) Pixel array, and then metal reflector 2 2 is plated on each pixel. In addition, on a transparent glass substrate 28 having a size similar to that of the silicon substrate wafer 21, a combination of photolithography and vacuum coating was used to fabricate miniature red, green, and blue three-color color filter arrays 27. After planarizing the miniature red, green, and blue three-color color filter array 27, a transparent conductive layer 26 is plated thereon, and then the micro-red, green, and blue primary color filter array 27 is coated with the metal mirror array 22. Silicon substrate wafer 2 1—Coat a layer of liquid crystal alignment layer 2 3, 2 5 on the surface (material is polyteamine or similar material), and after orientation treatment (mechanical friction or other methods), the two pieces The substrates are brought together face-to-face, with an intermediate distance between 0.5 μm and 10 μm. Liquid crystal 24 is poured into the middle interval and the periphery is sealed to form a combined device of a micro filter array and a LCOS substrate. Figures 5A and 5B are schematic diagrams of the plane arrangement distribution of the color filter array 27. The shape of each pixel is a square, and every three pixels (red, green, and blue) are formed in a font shape as shown in the fifth A picture, or in a comb-like arrangement (as shown in the fifth B picture). The basic pixel units are arranged in a cycle to form the entire display day. As shown in FIG. 6 and FIG. 6A, the shape of each basic pixel unit of the miniature color filter array 27 of the silicon-based liquid crystal reflective color micro display chip is respectively composed of three long and red, green, and blue A rectangular structure composed of rectangular micro-filters with a width ratio of about 3, and the entire array is a square structure with the square structure as a basic unit. And the distortion and distortion of the displayed daytime image is smaller than the shape and arrangement of the pixels in the fifth A and fifth B pictures.

Page 13 1237730 V. Description of the daytime image displayed in the method (9) of the invention. In addition, the miniature color filter array 27 of the sixth A picture can appropriately change the three pixels by keeping the sum of the widths of the three pixels of red, green, and blue unchanged (equal to their length). The width ratio of the red, green, and blue micro-filters has an appropriate area ratio, and the tonal balance of the projected image can be adjusted. For example, the current illumination source of projection display systems is usually ultra-high pressure mercury lamps, and the spectral components of red light in the emission spectrum of ultra-high pressure mercury lamps are significantly lower than the spectral components of green and blue light, so red pixels can be appropriately increased by The width of the rectangular shape, correspondingly reduce the width of the green and blue pixels, in order to increase the proportion of the area of the red pixels to the total area, so as to perform color compensation. No. And the balance of the first six colors of the figure, Da Dan compensation \ ο the most restrictive shape of the shape of the yuan ruler, the crystal, said that the liquid or the limit of the display of the artisanal micro-workers; 口 # 力 对child. The electric height is too high. If the value is smaller than the scale, the aerosol step is less advanced, and the device is suitable for the device. It is only displayed in the figure of the shape element that is not like the shape element. The first is width and length. That is, there are more / IV pixel images than 451- for suitable vUtui. One is. The seventh degree and analysis of the seventh degree of the image and the seventh and the third element of the image are shown in Figure A. The row BB and the visible micro-element color image color three shots of blue reflection and crystal. Green liquid 'based red broken Array display film image photograph furnace 丨 Chroma color analysis type solution is slightly high, its red structure is composed of a uniform edge-shaped hexagonal element, a plain film, a light-based filter, a micro-shaped, shaped edge Edge four, four rows, flat and flat are three uniform blue type, square green column, square square nest bee with elementary basic structure as the edge shape six should think. Arrays and rows are dense and dense.

Page 14 1237730 V. Description of the Invention (ίο) By adjusting the internal angle value and the length of each side of the hexagon of this basic pixel unit, the ratio of its equivalent length and equivalent width can be close to 1. Moreover, by adjusting the internal angle value and the length of each side of the hexagon of this basic pixel unit, the proportion of pixels of each color in the total display area can be changed, so that color compensation can be performed and the tone balance can be adjusted. The advantage of this honeycomb arrangement is that the side lengths of the parallelograms of each pixel are close, so it is conducive to make it denser to get more pixels and higher resolution. A specific configuration of the arrangement shown in Figures 7 and 7A. The shape of the three red, green, and blue micro-filters of each basic pixel unit are rhombuses, and the side length is usually 4 ~ Between 10 microns. The two rhombuses of the green pixel 3 1 and the blue pixel 3 2 have the same shape, each having an internal angle a between 50 ° and 56 °, preferably about 53 °, and the other pixel, the red pixel 33 has an internal angle b between 70 ° and 78 °, preferably about 74 °. In this way, after the hexagonal basic pixel units are arranged in a honeycomb structure, the ratio of the equivalent length and equivalent width of each basic pixel unit is very close to 1, that is, this structure will not bring graphics Distortion. Moreover, the side lengths of the rhombuses of each pixel are equal, which is beneficial to the further integration of the device. In addition, the area of the red pixel 3 3 is slightly larger than that of the green pixel 31 and the blue pixel 32 (the area of the red pixel is about 1.1 times the area of the green pixel), which helps Improve the visual effect of the lack of red component in the projected image due to the weak red light spectral energy in the illumination light source. In addition, a layer of non-transparent coating, such as Ming, chromium, is deposited on the gap 3 4 between the micro-filters (the gap distance is about 0 · 3 ~ 1 micron).

Page 15 1237730 V. Description of the invention (11) A material or a combination of carbon, nickel, copper, iron, zinc, titanium, gold, silver, iron, tungsten, metal, group, copper, or carbon, can reduce light leakage 'Thereby further improving the image quality of the device, increasing the image contrast and the signal-to-noise ratio. In addition, two silicon-based liquid crystal reflective color microdisplay chips in a three-dimensional / two-dimensional switchable color projection display device are displayed. The color gradation of gray color is more abundant, especially one of the two silicon-based liquid crystal reflective color micro display chips has a red, green and blue three-color micro-color filter array, and the other has a cyan The three primary color micro color filter arrays of yellow, magenta and magenta are manufactured in the same way as the three primary color micro color filter arrays of red, green, and blue. Therefore, a six-primary color color display system can be constructed. The image has a wider chromaticity range, which can present richer, more vivid, and more realistic colors. The projection display device of the present invention can control the image information input to the broken base liquid crystal reflective color micro display chips 2 and 3, so that the projection display image can be conveniently displayed between a two-dimensional and six-primary color plane display and a three-dimensional stereo display. To switch freely. In addition, a part of the illumination light projected on each silicon-based liquid crystal reflective color micro display chip is changed by the chip to change its polarization direction for projection display, and the rest (including the array of micro color filters) The light reflected by the array and the light whose polarization direction has not been changed by the liquid crystal) are not reflected by the liquid crystal, but are reflected back to the lighting system according to the original light path. Through a certain device, this part of the light can be reflected back and reused. It can effectively improve the utilization efficiency of light and increase the brightness of the projection display image. To sum up, with the present invention,

Page 16 1237730 V. Description of the invention (12) Projection display device "has the following beneficial effects: 1 · It is convenient, simple and low-cost to realize color stereo display. 2 · Multi-primary color display is possible. 3 · Can easily switch between 3D stereo color display mode and 2D multi-primary color display mode. 4 · Simplify the optical system and improve system reliability. However, the above are only the preferred and feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Therefore, any equivalent structural changes made by using the description and illustrated contents of the present invention are included in the same reason. Within the scope of the invention, Chen Ming was given.

Page 17 1237730 Brief description of the drawings The first diagram is a schematic diagram of the three-dimensional / two-dimensional switchable color projection display device of the present invention. The second figure is a schematic diagram of an embodiment of the present invention. The third diagram is a schematic diagram of another embodiment of the present invention. The fourth diagram is a cross-sectional structure of the silicon liquid crystal reflective color microdisplay wafer of the present invention. The fifth diagram A is a schematic diagram of the planar layout of the color filter array of the character-shaped arrangement. The fifth diagram B is the plane layout of the comb-like array of the color filter array. The sixth diagram is a silicon-based liquid crystal reflection type of the present invention. Schematic diagram of the square arrangement of micro-filter arrays in a color microdisplay wafer. Figure 6A is a partially enlarged view of the square arrangement of the micro-filter array of the present invention. Schematic diagram of the planar layout of the honeycomb arrangement of the micro filter array in the color micro display wafer. Figure 7A is a partial enlarged view of the honeycomb arrangement of the micro filter array of the present invention. [Reference number in the figure] The present invention Polarizing beam-splitting film 1 Liquid crystal layer 24 Silicon-based liquid crystal reflective color micro display chip 2, 3 Upper liquid crystal alignment layer 25 Transparent conductive layer 26 Projection objective lens 4 Miniature red, green, and blue three primary colors S-direction linearly polarized light 6 Color filter column Front 2 7

Page 18 1237730 Schematic description of P-direction linearly polarized light 7 Rays 8, 9, 1 0 Polarizing beam splitting prism group 1 1 Polarizing beam splitting prism 12 Metal mirror array 2 2 Lower liquid crystal alignment layer 2 3 Glass substrate 2 8 Green Pixel 3 1 Blue Pixel 3 2 Red Pixel 3 3 Gap 3 4

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Claims (1)

1237730 VI. Scope of patent application A three-dimensional / two-dimensional switchable color projection display device ’includes: a P-square light and the S-direction polarizing light plate array polarization division, in order to modulate the group, and its number is the position. 2 color chips with 3 color chips and 4 color chips with 4 polarized light exit positions and convergent exit positions, and accept one-s-direction polarized light exiting ~ polarized light exiting the p-square sheet, which has a miniature color filter The display chips are respectively placed at the exit of the P-direction polarized light, the P-direction polarized light is separately reflected back to the polarization beam splitting prism, and the optical signals with the images are superimposed and output to the three-dimensional / Miniature color filter 'light filter arrays of two-dimensional switchable Shi Xiji liquid crystal reflective color display colors. The three-dimensional / two-dimensional switchable element described in the first item is a special color filter array of primary color of the Shikiji liquid crystal reflective color display. One of the three-dimensional / two-dimensional switchable mediums described in item one of the silicon-based liquid crystal reflective color display color micro color filter array, and the other having a polarization-splitting polarized light is exited by the polarization-polarized light. LCD columns, such light prisms, and respectively accepted as polarized beamsplitters with the polarization direction of the graph. • If you apply, there are two types of shadow display or • If you apply for projection display with red, • If you apply for projection display with red and green prism groups, Exit position of the beam splitting prism exit position; and the S-direction of the reflective color dream liquid crystal, the S-direction image color, respectively, the prism assembly patent range device, three or more patent range devices, its green and blue three patent range devices, its , Lan Sanji has an S set and a sink set divided into and a P square color display crystal reflective color polarized light and polarized light and light signals and 90 degrees, converge and correspond 1237730 VI. The scope of patent application is Yuexiu and Magenta two-color miniature color filter arrays> b • The three-dimensional / two-dimensional switchable, color projection display device described in item 1 of the scope of patent application, among which silicon The base liquid crystal reflective color display has three micro-color filter arrays of cyan, yellow and magenta. ^ 6 The three-dimensional / two-dimensional switchable color projection display device according to item 1 of the scope of patent application, wherein the polarizing beam splitting prism group has four right-angle prisms coated with a polarizing beam splitting film on its right-angle surface, and The polarizing beam splitting prism group is arranged and assembled in the shape of "χ". 7 · The three-dimensional / two-dimensional switchable color projection display device according to item 1 of the scope of patent application, wherein the polarization beam splitter prism group has four polarization beam splitter prisms, and the polarization is arranged in a "m" shape to form the polarization. Beam-splitting prism set. 8 The three-dimensional / two-dimensional switchable color projection display device as described in item 7 of the patent claim, which further includes at least one or more half-wave plates, which are arranged in all polarized beamsplitters. Between prisms or part of a polarization beam splitting prism. 9 · The three-dimensional / two-dimensional switchable color projection display device as described in item 1 of the scope of patent application, which further includes two quarter wave plates, which are respectively attached to two silicon liquid crystal reflective color microdisplays. On the surface of the wafer. 1 0 · The three-dimensional / two-dimensional switchable color projection display device described in item 1 of the scope of patent application, wherein the silicon-based liquid crystal reflective color display chips include: silicon-based wafers with integrated circuit structure, metal reflection The mirror array, the lower liquid crystal alignment layer, the liquid crystal layer, the upper liquid crystal alignment layer, the transparent conductive layer, the micro color filter array, and the glass substrate are sequentially stacked to provide a flame seal. Page 21 1237730 6. The scope of the patent application is incorporated in one, and the shape and size of the miniature color filter of the miniature color filter array correspond to the metal mirror of the metal mirror array, and the miniature color filter The chip array system can be used as a metal electrode and addressed by the integrated circuit on the underlying silicon substrate chip, so that a certain direct-current voltage or voltage pulse is added to it respectively. 1 1 · The three-dimensional / two-dimensional switchable color projection display device as described in item 10 of the scope of patent application, wherein the interval between the two liquid crystal alignment layers is 0.5 micrometer to 10 micrometers. 1 2 · The three-dimensional / two-dimensional switchable color projection display device described in item 10 of the scope of patent application, wherein the interval between the two liquid crystal alignment layers is 1 μm to 6 μm. 1 3 · The three-dimensional / two-dimensional switchable color projection display device described in item 10 of the scope of patent application, wherein the interval between the two liquid crystal alignment layers is 2 μm to 4 μm. 14 · The three-dimensional / two-dimensional switchable color projection display device according to item 10 of the scope of patent application, wherein the micro color filter array is located between the upper liquid crystal alignment layer and the transparent conductive layer. 15 · The three-dimensional / two-dimensional switchable color projection display device according to item 10 of the scope of patent application, wherein the micro color filter array is located between the transparent conductive layer and the glass substrate. 16 · The three-dimensional / two-dimensional switchable color projection display device according to item 10 of the scope of patent application, wherein each micro-filter of the micro-color filter array is composed of two or more The dielectric films of different refractive indices are alternately combined, and the total thickness of the film is between 1 micrometer and 5 micrometers. Page 22 1237730 VI. Application scope. 1 7 · The three-dimensional / two-dimensional switchable color projection display device according to item 15 or 16 of the scope of patent application, wherein the gap between the miniature color filters is between about 0 · 3 ~ 1 micron , And is plated with a non-transparent coating, the material of the non-transparent coating is a material selected from the group consisting of chain, chromium, copper, copper, iron, silicon, titanium, gold, silver, starting, metal, key, group, metal, carbon, or Their composition. 1 8 · The three-dimensional / two-dimensional switchable color projection display device according to item 15 or 16 of the scope of patent application, wherein the length and width of each basic pixel unit shape of the miniature color filter array A rectangular structure composed of rectangular micro-filters with a ratio of about 3, and the entire array is a square structure in which the square structure is used as a basic unit. 19 · The three-dimensional / two-dimensional switchable color projection display device as described in item 18 of the scope of patent application, wherein three rectangular miniature filters of red, green, blue or cyan, yellow, and magenta maintain a width The respective widths are different under the premise that the sum of the constants is unchanged, so that the red, green, blue or cyan, yellow, and magenta miniature filters have a suitable area ratio. 2 0 The three-dimensional / two-dimensional switchable color projection display device according to item 15 or 16 of the scope of patent application, wherein each basic pixel unit shape of the micro color filter array is three parallel A hexagonal structure composed of quadrangular micro-filters, and the entire array is closely arranged in a honeycomb manner with the hexagonal structure as a basic unit. 2 1 · The three-dimensional / two-dimensional switchable color projection display device described in item 20 of the scope of patent application, in which red, green, blue or cyan, yellow, and red Page 23 1237730 VI. The internal angle and side length of the parallelogram of the three micro-filters with red patent scope can be adjusted so that the ratio of the equivalent length and equivalent width of the basic pixel unit they form is close. 1, and the red, green, blue or cyan, yellow, and magenta miniature filters have a suitable area ratio. 2 2 · The three-dimensional / two-dimensional switchable color projection display device described in item 21 of the scope of patent application, wherein each basic pixel unit is red, green, blue or cyan, yellow, and magenta two miniature The shape of the filter is Mann, and two diamonds each have an internal angle between 50 ° and 56 °, and the other diamond has an internal angle between 70 ° and 78 °. Page 24