JPH01185602A - Light guiding type display device - Google Patents

Abstract

PURPOSE:To reduce the thickness and the cost by forming the display device of units consisting of optical fibers which are coupled optically as principal elements from an image forming means to a display surface. CONSTITUTION:A light guide body performs the power transmission of light, so one light guide body forms on picture element on a projection surface. An optical fiber is used suitably as the light guide body and a plastic fiber is preferable. Then 25 sheets (each consisting of 100 fibers) on the projection surface side are put in cross arrangement on the projection surface by shifting fiber bundles 206 alternately. Further, the projection terminal is exposed directly from the housing of the unit and this part is adhered strongly to have no flexibility. Fiber bundles on an incidence surface side connected to an optical shutter 203, on the other hand, are not shifted to form rectangular section. The incidence surface 20 having the rectangular section faces the display surface of the optical shutter 2037, so information entered into the fibers 202 from the side of the optical shutter 203 is accurately displayed by being shifted reversely.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a light guiding type display device.

[Prior art] Conventional light guide type display devices include U, S, P, 4650280
The display screen was constructed by simply stacking blocks of bundled fibers, as disclosed in .

[Problem M to be Solved by the Invention] However, the conventional light guiding type display device has the drawback that the total fiber length used is extremely long, making the device expensive.

In addition, a linear structure is visible due to boundaries caused by discontinuities between blocks or uneven brightness, resulting in a problem of deterioration of display quality. Therefore, an object of the present invention is to reduce the length of the fibers used and obtain a light guide type display device with uniform and high display quality.

[Means for Solving the Problems] The light guiding type display device of the present invention is composed of a plurality of units whose main components are an image forming means and an optical fiber optically coupling the image forming means to the display surface. It is characterized by

[Embodiment 1] FIG. 1 shows an overall view of a light guiding type display device of the present invention. The diagonal line 1 represents one unit constituting the screen, and the units have a structure in which they intersect with each other at the image output end 102 of the light guide serving as the screen in order to improve the uniformity of the screen.

Furthermore, 104 is a support body for the units, and each unit is housed in an insertion space of the support body. Further, a broken line 103 in the figure indicates the upper and lower ranges actually used for display, and the floor plan of the broken line is masked. FIG. 2 is a cutaway view of the unit taken out. 201 is optical fiber 20
This is the image input end which is the other end of No. 2. A light shutter 203 is an image forming means, and in this embodiment, a liquid crystal display (hereinafter referred to as LCD) is used. 204 is a light source device for projecting light. Furthermore, 205 is a fiber for brightness detection, which is drawn out from several points on the display surface. 207 is a brightness detector that receives light from a detection fiber, and here a photodiode is used. These are installed to ensure uniformity of brightness across the entire screen.The brightness of the entire screen is set using signals from the brightness detector of each unit, and the brightness is adjusted by sending feedback to the unit's light source device and LCD. I am doing it. Note that the light source, LCD control circuit, drive circuit, etc. are omitted in the figure for simplicity.

The light guide used in the present invention transmits the power of light, and one light guide forms one pixel on the exit surface. An optical fiber is suitable as such a light guide, and in consideration of weight, price, flexibility, workability, etc., a plastic fiber is more preferable.

By alternately shifting the fiber bundles 206 bound every 25 sheets (one sheet consists of 100 fibers) on the output surface side, the arrangement on the output surface was made to be intersected. Furthermore, the output end is directly exposed from the housing of the unit, and this part is firmly bonded to eliminate flexibility. On the other hand, the fiber bundle on the incident surface side connected to the optical shutter is not shifted and can have a rectangular cross section.

The entrance surface 201 having a rectangular cross section corresponds to the display surface of the optical shutter. Therefore, by assuming that the information input into the fiber from the optical shutter side is shifted in the opposite direction in accordance with the shift of the output end, the displayed information becomes normal. This is because an LCD consisting of matrix pixels allows accurate positioning. In addition, the entrance surface 2
01 may have a structure in which fibers each having one end shaped into a rectangular shape are laminated in a close-packed manner as shown in FIG. The cross-sectional shape of each fiber 302 is designed so that one fiber corresponds to a trio of R, G, and B pixels of the LCD. In Fig. 3, a striped color filter 301 is used, but R, G and
, Since it is sufficient to correspond to 8 pixels, a mosaic filter may be used. Furthermore, it is also possible to make one fiber correspond to a large number of pixels. Figure 4 shows the arrangement at that time. RlG, B pixels, approximately 6 pixels 40
1 corresponds to one fiber 402, and information for approximately 6 pixels is added on the output surface. Therefore, even if information is missing in about one pixel out of six pixels, it has the advantage that the effect on the output is small. In addition, the entrance surface 203 is formed by a fiber 30 whose one end is shaped into a rectangular shape, as shown in FIG.
It was possible to create a structure in which 1 was stacked closely.

In reality, the fiber and optical shutter are in close contact,
In FIG. 3, they are drawn with an interval 304 between them.

The cross-sectional shape of each fiber 301 is designed such that one fiber corresponds to each R, G, and B pixel 302 of the optical shutter. In this example, these were bundled to form a unit as shown in Table 1.

Table 1 Fiber Plastic Fiber 0.5 ■ Outer diameter exit surface vs. entrance surface Linear expansion ratio 5: 11/6 shift, RGB mixed transmission Input surface Compressed rectangular fiber East rectangular cross section Number of pixels 100 x 100 (R, G, B trio unit) ) Number of fibers 100X 100 Optical shutter Matrix LCD 100X 300 (per pixel) Light source 250W halogen lamp brightness adjustment
Inter-unit feedback system Although FIG. 3 shows an example using a striped color filter 303, a mosaic color filter may also be used since it is sufficient that 8 pixels of RlG correspond to the fiber. Also, the cross section of the fiber can be used even if it is not rectangular, although this results in a decrease in efficiency. Furthermore, it is also possible to make one fiber correspond to a large number of pixels. Figure 4 shows the arrangement at that time. For example, R,
When G and B pixels 401 and about 6 pixels 402 (indicated by diagonal lines) are made to correspond to one fiber 403 (indicated by broken lines), information for about 6 pixels is added on the exit surface. Therefore, even if information is missing for about one pixel out of six pixels, specific color information will not be completely missing for the pixel on the exit surface, and there is an advantage that the influence will be small. In this case, the optical shutters are R, G, B
By allocating the same information to each two pixels, it was possible to reduce the amount of display information per LCD.

FIG. 5 (al and fbl are enlarged views of a part of the display surface. Fibers 501 are sandwiched between spacers 502 and arranged in alignment at the output end surface.
Figure fal shows R, G, and B fibers when a spacer is inserted for 5°3, and Figure 5 (b) shows R9G,
B This is the case when it is inserted into each fiber. The spacer absorbs leakage light to minimize light leakage between fibers. For this reason, in this example, dyeing was performed in various colors, and the dyed black gave the most favorable results for each color. Moreover, by dyeing in this manner, it is also possible to make the gaps for magnification on the display surface less noticeable and to improve the clarity of the image.

The image magnification method using a fiber-based light guiding optical system is as follows.
Methods such as inserting a spacer between fibers and cutting the fibers diagonally are known, and these methods may be applied as appropriate. In this example, as shown in FIGS. 5(a) and 5(bl), the image formed by the optical shutter is enlarged by inserting a spacer in the horizontal direction and using a cutting method in the vertical direction, and then the unit were stacked as shown in Fig. 1 to form the entire screen.The broken lines 504 in Fig. 5 [al, (bl) indicate the connecting lines between units, and the fiber spacing is constant even between adjacent units. At this time, in order to improve the uniformity of the light emitting surface, it is recommended to perform a process to control the direction of the light rays on the entire light emitting surface at once.As a control process for the light emitting direction, serration processing or matte finish may be used. , sandblasting, etc. are known, but in this example, sandblasting was performed all at once to provide a diffusion treatment.

Next, the coupling between the optical shutter and the fiber entrance surface will be explained. FIG. 6 is a sectional view of the joining portion between the optical shutter and the fiber. In order to reduce unnecessary reflections due to the interface between the optical shutter 601 and the fiber input end 602, in this embodiment, the fiber and the optical shutter are connected by an optical coupling material 603 having a refractive index similar to that of the fiber core. They are brought into close contact to increase coupling efficiency. Specifically, silicone resin with a refractive index of 1.49 was used.

FIG. 7 is an enlarged view of the joining part. The LCD used for optical shutter has an opposing transparent substrate 7 with electrodes from the fiber side.
01, a liquid crystal layer 703, and a transparent substrate 702, and is brought into close contact with the fiber entrance surface by a coupling material 705. 706 is an electrode corresponding to a pixel. Since the opposing transparent substrate is placed between the pixels and the fiber input end, the distance for optical coupling becomes long, and there is a possibility that the light information formed by the pixels will not be transmitted to the fiber in a one-to-one manner.

The possible incident angle θ is determined by N and A of the fiber. - θ of plastic fiber for boat fishing is ±30°
If the direction of illumination light has a spread of 0 or more, crosstalk from neighboring pixels is proportional to the optical length between the pixel and the fiber input end. Furthermore, if the optical length exceeds the pixel length/lan θ, information from peripheral pixels will be mixed, resulting in a decrease in resolution. Therefore, in the example shown in FIG. 7, by setting the opposite transparent substrate as thin as or less than the pixel length, it is possible to reduce crosstalk therebetween. Also Twisted Nematic
Mode (hereinafter abbreviated as T N mode) that requires a polarizing plate on the output side is designed to be as thin as possible between the transparent substrate and the fiber.

Furthermore, in order to minimize the reduction in resolution due to such crosstalk between pixels, the 0 pixel containing the most luminance information is installed at the center of each input fiber, or the G
This is done by not arranging pixels near the fiber. Further, crosstalk reduction can also be achieved by other methods. For example, FIG. 8 shows another example. The opposing transparent substrate 801 is etched to match the fiber joining part 802 and is processed to be thinner than the cross-sectional length of the fiber, so that the same effect as using a thin transparent substrate can be obtained, and the structure is also improved in terms of strength and so on. It is advantageous.

As can be seen in FIGS. 6, 7, and 8, this optical coupling of the optical shutter and the fiber requires accurate positioning, which cannot be easily accomplished. Furthermore, as will be described later, if the optical shutter is arranged at an angle with respect to the fiber coupling end, misalignment may occur even if one end of the bundled fibers and the shutter pixel are aligned two-dimensionally. This means that the coupling is not complete.
It becomes even more difficult to perform alignment at the optimal position after taking into account the deviation.

In this embodiment, the following method was used to reduce the difficulty of alignment.

First, I marked the optical shutter with alignment marks. For example, in the case of an optical shutter with a color filter, this mark indicates that the color filter is made to have a different color from other parts by overlapping G and B or R and B when creating the color filter.
The fiber was made into a size equivalent to a fiber and used. Alternatively, a black mask for preventing light leakage or a surface processed by etching or the like so as to scatter or absorb light may also be used.

The optical fibers to be connected should be connected diagonally in two directions when bundled.
Also bundle more than two fibers unrelated to image formation.
The fibers other than this extra fiber are coupled to the output end. When aligning the optical shutter and fiber for coupling,
By injecting light for reference into the fiber unrelated to image formation from the end face on the side that is not coupled with the optical shutter, the fiber side that corresponds one-to-one to the alignment mark of the optical shutter is A luminous landmark was used as a positioning mark.

While detecting this reference light from the fiber side through the optical shutter board, alignment was possible without much difficulty by aligning the alignment marks on both the optical shutter and the fiber input end so that they overlapped. At the time of this light detection, positioning has become easier by using a photodetector with sensitivity matched to the transmitted or non-transmitted light.

By doing the above, since the coupling direction and the optical path of the reference light become the same, it becomes possible to easily align an arbitrary optical shutter with respect to one direction of the fiber.

Another method is to use etching, pasting, or thick film printing to create a protrusion or depression on the side of the optical shutter that is connected to the fiber, which corresponds to the length of the fiber. There is also a method of aligning one end surface of an optical fiber that has been processed to have a concave or concave shape so that the convex and concave surfaces of the fibers are aligned, and this method also allows for easy alignment. In this case, it is necessary to accurately determine where to align at the design stage.

Next, the connection between the LCD and the fiber will be explained. FIG. 9 is a cross-sectional view when the L CD 901 is obliquely engaged with the fiber input end. In this way, by setting the angle at which the optical shutter is coupled to the fiber at an angle other than the right angle, even when using an optical shutter such as an LCD where the display contrast changes depending on the direction of the incident light 902, the contrast can be maximized. It can be used at any angle. This is TNmode, H
electrical17 Controlled Fire
fringence mode, Guest tl
This occurs in the ost mode, etc., and by making the light source light incident obliquely, the performance of each mode can be maximized. TNm used in this example
.

In the case of de, there is an optimal switch direction in the pretilt direction of the liquid crystal molecules, and the LC is set so that the light is emitted in this direction.
D is tilted and connected to the fiber.

- In the case of T N mod 6 for boat fishing, it is preferable that the LCD be tilted by about θ to 30° with respect to the central angle of the incident light.

Next, the fiber length of this example will be explained.

Figure 10 (al is the first screen when enlarging the entire screen at once.
Figure 0 (bl is a sectional view when unitized.

The length of the exit surface lo is 1001, while the length of the entrance surface is li
Looking at the ratio of 1002, in the case of - bracketing, it is 5:1, and in the case of unitization, it is the same ratio of 5:1 for the sum of each incident surface 1iu 1003. However, if we pay attention to the length of the fiber, if it is divided into 5 sections as shown in Figure 10 (bl),
Even in the plane of the cross section, the fiber length can be reduced to 115. In reality, units are also formed on a plane perpendicular to the cross section, so 1/20 of the fibers can be used. Reducing the fiber length not only reduces the cost of the entire system, but also reduces weight, which becomes a problem with larger devices.

Furthermore, unitization has the advantage that the scale of the LCD can be reduced. For example, to handle TV double signals, at least 50x soo pixels are required.
The unitization described above makes it possible to use small-scale LCDs of about 100 x 100 pixels, making it possible to use low-cost L
You can also use CDs.

FIG. 11 is a sectional view of the LCD used as the optical shutter used in this example. The basic structure is that a color filter layer 110 is placed between two transparent substrates 1103 with electrodes attached.
2 are installed, and a liquid crystal 1104 is sealed between them. In this example, the thin film transistors shown in Table 2 (
Thin Film Transistorllol
An active matrix type LCD (hereinafter abbreviated as TFT-LCD) is used. The general driving method and configuration of TPT-LCD is described in Nikkei Electronics No. 351 (1981) p. 21.
1. SID' 83 DIGEST p, 15
6 (1983), SID' 85DIGEST p.
278 (based on the one described in 1985+).

Table 2 Display mode TN mode driving method TPT active matrix pixel count
100X300 Display effective area 80X80 ■ Color RGB dichroic filter
Next, let's talk about driving methods when using multiple LCDs by unitizing them.
This will be explained according to FIG. One of the simplest methods is to connect the X and Y lines as if they were a single LCD, as shown in FIG. 1203 is each L
CD, 1201 is a Y-side scanning circuit, and 1202 is a Y-side scanning circuit.

FIG. 13 shows an X-side scanning circuit 1303 and a Y-side scanning circuit 130 for each LCD in order to reduce the number of connection lines between the LCD and external circuits.
4, and the wiring to each LCD is limited to display data 1301 and timing signal 1302 corresponding thereto.

However, by transmitting the display data point-sequentially as a whole, it is possible to set the duty ratio per pixel of each LCD so that it does not become high.
It is possible to avoid deterioration of the D characteristic.

In FIG. 14, display data is sent to each LCD in parallel. Serially transmitted data 1402 is once stored in a display memory 1401, and read out in parallel according to the portion assigned to each LCD 1403, and is read out in parallel to each LCD'. This shows a method of writing as display data for G2. 140
4 is a data bus, and 1405 is a CPU that performs control. This method has the advantage that the wiring to the LCD is reduced and at the same time the operating duty of the LCD is increased, making it possible to increase the selection time per pixel.

By this method of connecting a plurality of LCDs, it was possible to reduce the amount of wiring between the units, and it was possible to adopt a structure in which the input/output terminals of the units were inserted and connected to the wiring of the support body. Furthermore, since the scale of the LCD can be reduced, it has become possible to drive the LCD at an operating duty with good electro-optic characteristics. Furthermore, it was also possible to use a plurality of LCDs within the unit and determine the aspect ratio of the LCDs independent of the aspect of the displayed image of the unit. FIG. 15 is an example of this, and is a perspective view of the fiber coupling portion of the unit. 10
0x 1 unit of 300 pixels is L of 100x75 pixels
It is constructed using four CD 1501 discs. 1502
is a fiber bundle corresponding to one LCD.

In addition, as shown in FIG. 16, a fiber bundle 160! from the display surface 1602 of the unit! It is also possible to divide and draw out each R, G, and B and combine it with a plurality of LCDs 1603. Furthermore, it is also possible to use multiple light sources 1604.

FIG. 17 shows the structure of another coupling portion between the optical shutter and the light source in this embodiment. Normally, a polarizer is used to limit the plane of polarization of incident light and output light from a liquid crystal panel, but in this example, a polarizing beam splitter is used to limit the polarization of incident light.
701, an optical shutter was constructed using liquid crystal panels 1702 and 1703, each without an upper polarizing plate, for each light emitted from a polarizing beam splitter that was limited to one plane of polarization. 1704 is a fiber bundle. According to this method, only one polarization plane of the light emitted from the light source is used, and half of the light is absorbed by the polarizer, compared to existing liquid crystal displays, which would otherwise be discarded. This makes it possible to use light more effectively, reducing the number of light sources by about half.

For this reason, not only the direct effect is miniaturization of the device and reduction in power consumption, but also the burden of cooling the portion corresponding to the heat generated by the light absorbed by the polarizer is reduced. Therefore,
This also has the indirect effect of making it possible to downsize the device and reduce power consumption, since it is no longer impossible to downsize the device or require a large cooling device due to heat generation.

FIG. 18 shows an example of a cross-sectional view of the light generating portion of the light source of this embodiment. 1801 represents a light generating part such as a halogen lamp, cold cathode tube, or fluorescent lamp, and 1802 represents an optical fiber for the light source. For light sources that generate a lot of heat, we focused on heat-resistant fibers, such as quartz glass, and for light sources that generate little heat, we used plastic fibers in consideration of price and weight. Compared to the conventional combinations of a reflector and a condenser lens or the combination of a reflector and a fiber, this type of fiber eliminates the need for complex optical design, making it easier to align the optical shutter and light source. It is also much easier to manufacture as it does not require precision. Additionally, there is no need to consider the reduction in peripheral light intensity that tends to occur with condensing optical systems that keep costs low, resulting in a light source that can provide high-quality, uniform light. The diameter of the optical fiber for this light source is smaller than the size of one pixel on the optical shutter panel surface, and by making multiple light source fibers correspond to one pixel, there is no need to align each pixel. This makes it possible to create a light source with less unevenness in the amount of light. In addition, when the optical fibers taken out from the light generation section are bundled, the optical fibers 1802 in the light generation section 1801
By making the position irregular, it was possible to average out the unevenness in the amount of light due to the light generating part and reduce the unevenness in the amount of light.

By having the above configuration and unitizing it,
It was possible to obtain a light-guiding type display device with high display quality in which the fiber length could be reduced, boundaries were hard to see, and uniform display could be obtained.

[Embodiment 2] FIG. 19 shows another embodiment of the light guide type display device of the present invention. 1901 is a fiber bundle which is an enlarging optical system within the unit, and 1902 (shaded area) is an image input end on the other end face. 1904 is a liquid crystal projection device which is an image forming means. The difference from the first embodiment is that the LCD is not directly installed at the image input end, but the image is input via an imaging optical system.

The details of this embodiment will be explained below.

FIG. 20 is a basic configuration diagram of the liquid crystal projection device used in this example. 2001 is a light source device, 2002 is an LCD,
2003 is a projection optical system, and 2004 is a fiber bundle. Such projection devices include: (1) one using a transmission type optical shutter (Appl, ph73. Lett,
Vol, 21392 +1972)l, (2) Using a reflective optical shutter (Japanese Patent Laid-Open No. 56-43681)
(3) Using an optical writing type optical shutter (Television Society Technical Report 0PT-216 January 1986)
(4) A method using a matrix type optical shutter (Japanese Patent Laid-Open No. 61-99118) is known. Although the present invention can be used without any problem, a color projector using a TPT-LCD shown in FIG. 21 was used here. This uses a dichroic element 2101 to synthesize three primary colors, and has higher light utilization efficiency than a method using color filters, so a brighter display can be obtained. Furthermore, matrix type LCD21
By projecting 02 onto the entrance plane 2103, which is a fiber matrix, accurate pixel positioning is achieved. 2
104 is a light source device, 2105 is a dichroic mirror for spectroscopy, 2106 is a mirror, and 2107 is a projection optical system. In addition, since the three primary colors can be input into the fiber at once, the number of fibers used can be reduced, which has the effect of reducing the overall fiber length.

Although the configuration of the light guide section in Example 2 was the same as that in Example 1, accurate image formation by the projection device became possible even with a simple laminated light guide.

By coupling the image forming portion using the optical shutter with the fiber through the coupling optical system in this manner, a light guide type display device that is bright, has higher resolution, and has excellent display quality can be obtained. Additionally, the cost of fibers could be further reduced.

[Example 3] Example 3 is an example in which the optical fibers of the unit are more randomly intertwined.

Although the intersecting arrangement in Examples 1 and 2 was shifted by a certain amount, this example is a case where the interlacing was performed more randomly. FIG. 22 is a diagram showing its configuration.

2201 is an LCD that performs image formation; 2202 is an L
A CPU scrambles the display information of the CD, 2203 is an LCD drive circuit, 2204 is a data bus, 2205 is an image memory, and 2206 is serial data of image information.

Further, 2207 is an optical inverse transformation matrix element that returns the image to its original state.

A specific scrambling circuit accesses a dual port memory with random ports according to a transposed matrix of an optical inversion matrix. The addresses at this time are given according to a preprogrammed order by measuring the properties of the optical inversion matrix.

Further, the optical inversion matrix has a configuration in which fibers are arbitrarily crossed. As a result, as shown in FIG. 21, pixels 2208 that are adjacent to each other on the display surface can be arranged 2209 in a different manner on the incident surface.

This uses the characteristics of the LCD matrix to change the arrangement of the fibers, and is able to suppress the occurrence of boundaries based on specific rules and the occurrence of unevenness in the amount of light based on the intensity distribution of the light generating part.

Although the embodiments have been described above, the present invention is not limited to the embodiments described above, and it is also possible to use a self-luminous image forming means such as a CRT, and can be widely applied to light guide type display devices. be.

[Effects of the Invention] As described above, according to the present invention, by configuring the display surface by units, it is possible to reduce the amount of fiber used and reduce the cost of the system, and also to reduce the thickness and thickness of the system.
It also has the effect of reducing weight. Furthermore, since standard production becomes possible, further cost reduction becomes possible. Furthermore, the number of units used can be selected to accommodate any scale. Furthermore, in the event of a failure, the unit can be removed and repaired, and replacement can be easily performed, which has the effect of improving maintainability. There is also the advantage of being able to use smaller scale light source devices and optical shutters. Furthermore, it is possible to control the brightness between units, and it is possible to obtain a light guide type display device with a uniform display surface and high display quality.

[Brief explanation of the drawing]

FIG. 1 is an overall view of the light guiding type display device of the present invention. FIG. 2 is a cutaway perspective view of one unit. FIG. 3 is a structural diagram of one end of a fiber shaped into a rectangle. Figure 4 is a layout diagram of the optical shutter unit. Fig. 5 ta) To) is an enlarged view of a part of the display surface. FIG. 6 is a sectional view of the mating part. Figure 7 is an enlarged view of the joint. FIG. 8 is a cross-sectional view of the mating portion formed by etching. Figure 9 shows the LCD attached diagonally to the fiber input end (a)
is the conventional example, (bl is the unit. Figure 11 shows the LCD used as the optical shutter in Example 1.
Cross-sectional view. Figure 12 is a wiring diagram when the X and Y wiring is connected like one LCD. FIG. 13 is a wiring diagram when shift registers are arranged on both the X side and Y side to reduce the number of connection lines with external circuits. FIG. 14 is a configuration diagram when display data is sent to each LCD in parallel. FIG. 15 is a configuration diagram of a unit using a plurality of TPT-LCDs. FIG. 16 is a configuration diagram of a unit using a plurality of LCDs for each RGB. FIG. 17 is a structural diagram of the connecting portion between the optical shutter and the light source. FIG. 18 is a sectional view of the light generating portion of the light source. FIG. 19 is a schematic diagram of a light guide type display device in Example 2. FIG. 20 is a configuration diagram of a liquid crystal projection device. FIG. 21 is a configuration diagram of a color projector. FIG. 22 is a diagram showing the configuration of units randomly interlaced. +01...Unit 102...Image output end 103...Display range 104...Support 20+...Image input end 202...Optical fiber 203...Light shutter 204...Light source device 205 ... Brightness detection fiber 206 ... Fiber east 301 ... Rectangularly shaped fiber 302 ... Pixel trio 303 ... Color filter 401 ... 1 pixel 402 ... Pixel corresponding to 1 fiber 403...
・1 fiber 501...Fiber 502...Spacer 503...Fiber trio 601...Optical shutter 602...Fiber input end 603...Optical coupling material 701...Opposing transparent substrate 702.・Transparent substrate 703 ・Liquid crystal layer 705 ・Coupling material 706 ・Electrode 801 corresponding to pixel ・Processed counter transparent substrate 802 ・Fiber coupling part 901 ・LCD 902 ・...Incoming light 1001...Fiber unit unit 1002...
LCD 1003... Driver board 1101... TPT 1102... Color filter layer 1103... Transparent substrate 1104... Liquid crystal 1201... X side scanning circuit 1202... Y side scanning circuit 1203... ...LCD 1301...Display data 1302...Timing signal 1303...LCD X-side scanning circuit 1304...LCD Y-side scanning circuit 1401...Display memory 1402...Serial display data 1403 ...LCD 1404...Data bus 1405...CPU 1501...TFT-LCD 1601...Fiber east 1602...Display surface 1603...LCD 1604...Light source 1502...Fiber bundle 1701...Polarizing beam splitter-1702, 17
03...Liquid crystal panel 1704...Fiber bundle 1801...Light generating portion 1802...Optical fiber 1901...Fiber bundle 1902 which is an enlarging optical system
... Image input end 1904 ... Liquid crystal projection device 2001 ... Light source device 2002 ... LCD 2003 ... Projection optical system 2004 ... Fiber bundle 2101 ... Dichroic element 2102 ... Matrix type LCD 2103...Fiber matrix entrance surface 2104
...Light source device 2105...Dichroic mirror 2106...Mirror 2107...Projection optical system 2201...LCD 2202...CPU 2203...LCD drive circuit 2204...Data bus 2205... Image memory 2206... Image serial data 2207... Optical inverse matrix element 2208...
Adjacent pixels 2209 on the display surface...pixel arrangement side on the incident surface Applicant: Seiko Epson Corporation Figure 1 Figure 3 Figure 4 Figure 5 (α) Figure 5 (b) Figure 6 Figure 7 Figure 8' Figure 9 1αQ Figure 10 (cx) Figure 10 (I) Figure 12 Figure 15 Figure 15 Figure 17 Figure 1 (Figure j Figure 27

Claims (1)

[Claims] A light guiding type display device comprising a plurality of units whose main components include an image forming means and an optical fiber optically coupling the image forming means to a display surface.