JPS58100828A - Picture display method - Google Patents

Abstract

PURPOSE:To display pictures having excellent drivabilty and reliability with respect to a device for displaying pictures of good quality with high image resolution by developing the foam generated in a liquid layer as picture elements. CONSTITUTION:When radiations 5 are irradiated to a display element from the right of the figure, the corresponding points of an absorbing layer 1 evolve heat, and a thin liquid layer 2 in contact therewith in heated by heat conduction and the liquid temp. rises until finally the liquid boils and vapor foam 4 is formed in the layer 2. Light transmittable glass or the like having pressure resistance is used as a transparent protective film 3. If in the case of irradiating the radiations the foam is of micro sizes, the liquid scattering effect is increased by the effect of curvature and in the area where there is no foam, the greater part of observing light 7 is reflected or absorbed by the elements of the display element and arrives at the observing eye 6, thus a difference in the quantity of light is produced by the difference in both optical paths. Therefore, if there is the foam generated in the liquid layer, pictures are obtained by making use of said foam, and are projected, whereby the pictures of good quality are obtained.

Description

[Detailed description of the invention] The present invention relates to a novel image display method and display device.

Currently, cathode ray tubes (so-called CRTs) are widely used as terminal displays in various office equipment and measuring instruments, or as displays in televisions and video camera monitors. However, in terms of image quality, resolution, and capacity, this CRT uses silver halide or electrophotography.
-There are some who are dissatisfied with the fact that they have not reached the same level as Tokobee. In addition, as an alternative to CRT, attempts have been made to put a so-called liquid crystal panel into practical use that displays DoorTomato 922 information using liquid crystals. In the end, I haven't gotten anything that I'm satisfied with.

Therefore, an object of the present invention is to solve the problems that could not be solved by the conventional techniques in this technical field.

That is, an object of the present invention is to provide a method for displaying high-resolution, high-quality images, and a novel display device that is characterized by excellent drive performance, productivity, and reliability, and has a high pixel density.

Hereinafter, the present invention will be specifically explained in detail according to illustrated examples.

One of the principles of image formation in the present invention will be outlined with reference to FIGS. 1 to 8.

In the figure, 1 is a radiation absorption layer, 2 is a liquid thin layer, and 3 is a transparent protection plate.
A display element shown in the schematic cross-sectional view) is constructed. At this time, the radiation absorption layer 1 is a colored (preferably black) film that efficiently absorbs radiation, especially infrared rays, and is obtained by forming a film of various inorganic or organic materials that are difficult to melt. It will be done. If the absorbing layer 1 itself has a poor supporting function, it is preferable to use a radiation-transparent support plate made of glass or plastic (not shown).

The liquid constituting the thin liquid layer 2 can be roughly classified optically into 1) a translucent liquid, 2) a colored liquid, and 2) a cloudy liquid. The basic composition of this liquid is water or various organic solvents used alone or in combination.

Specifically, examples of the organic solvent include methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, and 5eC-
phthyl alcohol.

Alkyl alcohols having 1 to 4 carbon atoms such as tcrt-methyl alcohol and isomethyl alcohol; Amides such as dimethylformamide and dimethylacetamide; Amines such as triethanolamine and jetanolamine; Ketones such as acetone and diacetone alcohol or keto alcohols; ethers such as tetrahydrofuran and dioxane; polyalkylene glycols such as polyethylene glycol and polypropylene glycol; alkylene glycols with 2 to 6 alkylene groups such as ethylene glycol, propylene glycol, phthylene glycol, hexylene glycol, diethylene glycol, etc. Examples include alkylene glycols containing 5 carbon atoms; glycerin; lower alkyl ethers of polyhydric fluorols such as ethylene glycol methyl ether, triethylene glycol monomethyl (or ethyl) ether, and triethylene glycol monomethyl (or ethyl) ether;

In addition, the above-mentioned colored liquid refers to various dyes,
It refers to colored liquids (including black) obtained by dissolving or dispersing pigments, and cloudy liquids refer to colored liquids (including black ones) that are obtained by dissolving or dispersing pigments. A white or light-colored liquid obtained by dispersing The thickness of the liquid thin layer 2 explained above is generally such that the amount of transmitted light is approximately half or less of the amount of incident light.
1 μm to 100 μm) is desirable. Note that at this time, the amount of transmitted light does not need to be reduced over all wavelengths in the visible range. However, it may also be a reduction in some wavelengths of light in the visible range. Further, this decrease in the amount of transmitted light may be caused by either absorption or scattering of light.

By the way, it is necessary to avoid liquid having the same color as the absorbing layer 1. This is because the contrast between the image area and the non-image area may not be maintained, as will become clear from the image forming principle described later.

As the transparent protection plate 3, a light-transmitting (colorless to light-colored) glass or plastic with as much pressure resistance as possible is used.However, this protection plate 3 may not be used when the display element is arranged horizontally.

When the display element of FIG. 1 configured as described above is irradiated with radiation (particularly infrared rays) 5 from the right side of the drawing, corresponding points on the absorption layer 1 generate heat.

When a portion of the absorbent layer 1 generates heat in this way, the liquid in contact with it is heated by thermal conduction, the temperature of the liquid increases, and eventually it boils, forming vapor bubbles 4 in the thin liquid layer 2. still,
When irradiating the display element with the radiation 5, the radiation 5 can be irradiated in a pattern corresponding to a predetermined image;
A laser light source is used to simultaneously irradiate a large number of beams in the form of a dot using the radiation 5, but it is also possible to scan the absorption layer 1 with an l beam or an l line beam. However, since it is actually extremely difficult to form vapor bubbles 4 with uniform optical properties over a wide area, the latter method, that is, the method of forming vapor bubbles 4 in a dot shape, is preferable. This can be said to be an advantageous method from a practical point of view.

Further, the direction in which the radiation 5 is irradiated is not limited to the illustrated example. That is, when the transparent protection plate 3 and the liquid thin layer 2 transmit radiation, it is also possible to irradiate the radiation from the left side of the drawing.

In the present invention, vapor bubbles 4 are formed in a thin liquid layer 2 by applying a heat pulse in a diagonal manner.
It is effective to have a flat shape that generates liquid from the surface of the absorbing layer 1, grows and increases therefrom without separating, and reaches the protective plate 3, creating a liquid void in the thin liquid layer 2.

In the present invention, when vapor bubbles 4 are formed in the liquid thin layer 2,
In the first embodiment (when using a translucent liquid), the observation eye 6
Display pixels can be identified based on the difference in the amount of light that reaches them.

In other words, the light reflection on the surface of bubbles in a translucent liquid is originally small, but if the bubbles are minute, the effects of diffraction and bubble curvature appear, and the light scattering effect of the bubbles is reduced. Become big. On the other hand, in a region without bubbles, most of the observation light 7 reaches the observation eye 6 after being reflected or absorbed by some elements of the display element, resulting in the above-mentioned difference in light amount. Incidentally, at this time, the ideal shape of the bubble is hemispherical.

It does not matter whether or not this bubble touches the protective plate), and its size -C is preferably approximately 4 ottm in diameter.

In the second mode (when colored liquid is used), the area where the bubbles are formed is colored by the absorption layer 1, and the other areas are colored by the liquid. Display pixels can be identified.

In the third mode (when a cloudy liquid is used), display pixels are identified by the appearance of colored parts (places where bubbles are formed) on a white or light-colored background.

In the above embodiment, the time required for the bubbles 4 to disappear is usually 30 msec, but it is desirable to make it as long as possible from the viewpoint of utilizing the afterimage effect.

In addition, although the method for forming the vapor bubbles 4 that become display pixels by radiation heating has been described above, in the present invention, the first method is described.
The absorption layer 1 in the figure is replaced with a heat transfer layer made of a metal (not shown), etc.
It is also possible to modify this so that a heating element (not shown) is brought close to or in contact with this to heat the liquid by conduction. however,
In this case, unless specific measures are taken to regulate the direction of heat transfer, there is a disadvantage that display pixels cannot be clearly defined due to heat diffusion.

As shown in FIG. 7 or 8, the display element configuration for carrying out the first aspect described above is such that the interface of the absorbing layer 1 or the interface of the protective plate 3 in contact with the thin liquid layer 2 is It is preferable to use the diffusion surface DP because it can enhance the discrimination effect of display pixels. Further, at this time, the closer the refractive indexes of the material of the protection plate 3 and the liquid are, the more distinguishable the display pixels will be.

In the present invention, in order to further enhance the discrimination effect of display pixels, a white or light color is provided between the radiation absorbing layer 1 and the liquid thin layer 20.
A light-reflecting or light-diffusing optical film 8 can also be separately interposed. (FIG. 2) Such optical film 8 needs to be formed of a high melting point metal material or metal compound material that does not melt itself during heat conduction.

Furthermore, in the present invention, as shown in FIG.
In the case where the vapor bubbles 4 generated inside do not reach from the absorbing layer 1 to the protective plate 3 (Fig. 3), for example, when a difference in brightness, saturation, or hue appears, the difference in display pixels You can get some sort of identification effect.Furthermore, if you use this positively.

It becomes possible to display intermediate tones.

In the present invention, when the vapor bubbles 4 are generated in the thin liquid layer 2, there is a sudden increase in pressure, so if the thin liquid layer 2 is constructed in a closed system, there is a risk of damage to the display element. strong. Therefore, it is desirable to connect each of the thin liquid layers 2 to an air chamber or an achievator (not shown) to alleviate the increase in pressure in the thin layer 2. Alternatively, as shown in FIG. 4, a pressure absorbing film 9 may be interposed within the display element to absorb the pressure generated in the thin layer 2.

Of course, it is even more effective to use the two methods described above together. The pressure absorbing membrane 9 is made of a translucent elastic material or a highly viscoelastic material, and may also be made of a so-called sponge that contains air bubbles or has ventilation holes.

Further, as a modification of the present invention, the thin liquid layer 2 may be connected to a heating chamber (not shown) and the liquid may be circulated and heated in advance to a temperature close to its boiling point. At this time,
Since the amount of heating and heating time required to form the vapor bubbles 4 can be reduced, it is possible to greatly speed up the formation of the vapor bubbles 4, that is, the display pixels.

For the same purpose, a heating element layer 10 is installed between the radiation absorbing layer 1 and the liquid thin layer 2 (FIG. 5) or between the radiation absorbing layer 1 and the optical film 8 (FIG. 6) of the display element. may be provided, thereby uniformly preheating the liquid thin layer 2 and raising the temperature to near the boiling point of the liquid.

At this time, if the absorption layer 1 or the optical film 8 is a conductor, an insulating layer (not shown) is provided between them and the heating element layer IO.
It is desirable to provide

In the present invention, the heating element layer 10 (FIGS. 5 and 6) is not necessarily limited to a planar heating element that covers the entire display surface. In other words, this may be a linear heating element or a lattice heating element (both not shown) corresponding to the scanning line of the radiation beam.

At this time, if the radiation irradiation and the heating by the heating element are synchronized, further energy-saving effects can be obtained. Materials for such heating elements include l-1f B, 513N4, etc. Examples include metal compounds and alloys such as nichrome.

Furthermore, in the present invention, a display element configuration in which a corrosive component comes into direct contact with the liquid thin layer 2 should be avoided, since this will shorten the life of the element. In other words, in a configuration in which the corrosive component is in contact with the thin liquid layer 2,
Elements are often damaged due to chemical corrosion, electrochemical corrosion, mechanical corrosion due to cavities, etc.

Therefore, in such a case, it is desirable to form a corrosion-resistant protective film (not shown) at the interface between the thin Ti body layer 2 and the corrosive component. The material for this protective film is a dielectric metal oxide (5in2. TiO2, etc.)
Examples include heat-resistant plastic, resin, etc. In the present invention, of course, the optical film 8 may also serve as this protective film depending on its function.

Next, as an application example, the principle of forming a color image will be explained with reference to FIG.

FIG. 9 is a schematic cross-sectional view of a color display element, and except for the color mosaic filter 11 and the reflective layer 12, the other components are the same as those described in FIGS. 1 to 8. elements can be used.

The specific configuration of the color mosaic filter 11 and its manufacturing technology have already been described in 1. Tokuko Sho 52-1309
4 and Japanese Patent Publication No. 52-36019, the detailed explanation will be omitted here as these are incorporated herein by reference.

In the illustrated example, when vapor bubbles 4 are formed in the thin liquid layer 2 in contact with the yellow filter 〇((Y)K, the reflected light passing through this filter turns yellow.@Also, a part of the cyan filter Vapor bubbles (
(not shown) is formed, a cyan coloration is observed due to the reflected light passing through this filter. Similarly, when vapor bubbles 4 are completely formed in contact with a part of the magenta filter (M),
A magenta coloration is seen due to the reflected light passing through this filter.

In this way, on the actual screen, the observer 6 sees pseudo-colors based on the additive coloring method. For example, when vapor bubbles are formed in adjacent Y, O, and M at the same time, the observer 6 will see white.

Instead of each of the filters (Y, C, M), a -C non-transparent colored layer (not shown) can be directly formed using a colored organic or inorganic pigment, but in any case, In this case, it is also desirable to use a material that has good thermal conductivity and excellent heat resistance and impact resistance. Similarly, as in the latter aspect,
When coloring occurs due to surface reflection of the pigment layer, the reflective layer 12
is not necessary.

Such a reflective layer 12 is obtained by a metal thin film processed into a mirror surface.

Here, a schematic structural example of another display element according to the present invention will be shown using FIG. 10.

In the figure, numeral 3 indicates a transparent protection plate, and numeral 2 indicates a thin liquid layer, which are elements having the same functions as those explained in FIG. 1. Reference numeral 13 denotes a thermally conductive insulating layer, and a plurality of heating resistance wires 14 and 15 are two-dimensionally arranged on both sides of the insulating layer so as to intersect with each other, sandwiching the insulating layer between them. Reference numeral 16 denotes a support for the heat generating resistance wires 14 and 15 and the insulating layer 13. This element is designed so that vapor bubbles 4 are formed in the thin liquid layer 2 in the area where they intersect only when the fixed heating resistance wires 14 and 15 are selected and generate heat. It is.

Next, an example of matrix driving of such display elements will be explained in more detail using FIG.

In the figure, reference numeral 17 indicates a display element, which can be considered to have the same detailed configuration as explained in FIG. 10. Now, in the drawing inside this display element 17, the heating resistance line X in the left and right direction
When a heating current pulse is sequentially applied to l, Although it is heated, at this time, the degree of heating is set to be below the boiling point of the liquid, so no vapor bubbles are generated in the thin liquid layer. On the other hand, the sign of the heating current pulse.

In addition, a predetermined video signal is applied to the heating resistance lines Yc, Yd, and Ye (these are called column lines) arranged in the vertical direction in the drawing while being synchronized with each other.

By applying this video signal, the resistance line Yc.

The liquid thin layer corresponding to ya and Ye is heated linearly, but in this case as well, it is necessary to keep the degree of heating below the boiling point of the liquid, so this alone will not cause vapor bubbles in the corresponding liquid thin layer. Don't let it happen. However, at the intersection of the row line and the column line where the heating current pulse and the video signal pulse are synchronized, the heating current pulse and the video signal pulse are mutually heated by the heat generated by both lines. If conditions are set so that the corresponding liquid thin layer foams only when heated in a compatible manner, vapor bubbles 18 are formed at the selected n row/column intersections.

In the above example, even if the driving method is changed as follows, images can be formed in exactly the same way. That is, even if the device is modified so that a video signal is applied to the row lines and a heating current pulse is applied to the column lines, the effect is exactly the same.

As shown above, the display element illustrated in FIG. 10 also enables matrix driving. Furthermore, Ma) I
In the case of the J-socks dynamic method, it goes without saying that a radiation absorption layer is not required as an element component, but instead, a heat sink may be provided separately to enhance the heat dissipation effect of the resistance wire. Desirable ◇This heat sink has support 16 (10th
It is possible to substitute a diagram. The row lines and column lines are separated by an insulating layer 13, and the thickness of the insulating layer 13 is several μm. Therefore, due to the time lag in heat conduction, when both p signals are applied simultaneously, a liquid thin layer is formed. Since the conductive heat does not reach 2 at the same time, foaming may be inhibited. Therefore,
In order to further enhance the harmonic heating effect, it may be preferable to delay the applied pulse to the signal line closer to the liquid thin layer 2 than the signal pulse to the other signal lines. Note that it is not necessary that all of both signal lines be formed of heating resistors.

Rather, in order to save energy, only the intersections of row lines and column lines are constructed with heating resistors, and the rest are A.
I! It can be said that it is preferable to construct it with a good conductor such as
However, there is a drawback that the manufacturing process is complicated.

Another example of a heating element for configuring a display element suitable for matrix driving as shown in FIG. 11 will be explained with reference to FIG. 12.

FIG. 12 is an external perspective view schematically depicting a partial area of the heating element. In the figure, numeral 21 indicates a heating resistor layer, which is made of a known heating resistor (for example, nichrome alloy, Hf
B2. It is obtained by forming a planar film of Si3N, etc.). Although not shown, this resistance layer 21 naturally extends downward in the drawing. Also, 22-1, 22-2, 22
-3, 22-4.

are all column conductors, 23-1, 23-2.23-
3°23-4 and 23-5 are both row conductors. All of these conductive wires can be made of good conductors such as gold, copper, and aluminum. In the illustrated heating element, for example, when the column conductor 22-2 and the row conductor 23-3 are selected and a voltage is applied to them, one part of the resistance layer 21 corresponding to the intersection 24 of the two is selected. The part is energized and generates heat.

In this manner, by arbitrarily selecting and energizing the row conducting wires and column conducting wires, it is possible to generate heat at any (row/column) intersection.

Therefore, in a display element as shown in FIG. 10 incorporating the illustrated heating element, it is possible to display a dot matrix image using the same matrix driving method as in the example shown in FIG.

By the way, in the heating element shown in FIG. 12, it is also possible to provide the heating resistor layer 21 divided only at the intersection of the row conducting wire and the column conducting wire (the conducting wires are insulated from each other in other areas). With such a configuration (not shown), it is possible to substantially prevent the occurrence of losstalk, which is inconvenient for image formation faithful to the signal. Further, by arranging a heating resistor having diode characteristics at the intersection of the row conductor and the column conductor, it is possible to completely prevent crosstalk.

It should be noted that color display can also be performed in the matrix-driven display method using the heating elements described above by adopting the same configuration as the example shown in FIG. 9. In addition, the drawings show [Although not shown, if the entire display element is configured to be translucent, a so-called transmissive display element can be obtained. However, whether the display element is a transmissive type or a reflective type only causes a difference in the observation direction, and does not make a difference in the image forming principle itself based on the present invention.

Here, another application example of the present invention will be explained using FIGS. 13 and 14. FIG. 13 is a schematic configuration diagram of the display device, and FIG. 14 is a schematic external perspective view illustrating its optical system.

In the figure, when the display element 31 is continuously driven for a long time, the liquid thin layer 32 inside the element 31 gradually rises in temperature due to heat accumulation (because the liquid is a thin layer) and becomes thin. Vapor bubbles may form in the layer 32 unnecessarily. If the amount of heat storage increases in this way, it will cause noise, which is not desirable. Therefore,
In this illustrated example, in order to prevent heat accumulation in the thin liquid layer 32, the liquid in the thin layer 32 is transferred to the display element 31, the vaporization chamber 33, and the liquefaction chamber 3.
It was made to cycle between 40 and 40 minutes.

The role of the vaporization chamber 33 is to remove such excess heat as vaporization heat, and to absorb or relieve the pressure caused by the generation of vapor bubbles due to the signal. Furthermore, a pressure reducing means 35 is added to the vaporization chamber 33 in order to maintain it in a predetermined reduced pressure state. This pressure reducing means 3
5, if the inside of the liquid thin layer 32 is kept in a low pressure state,
Since vapor bubbles are formed at relatively low temperatures, driving energy can be reduced. Furthermore, since the evaporation rate of the liquid increases, the rate of heat dissipation is also accelerated, which is another effect of the pressure reduction means.

The vaporized vapor then releases heat outside the system in the liquefaction chamber 34 and -C
The liquid is liquefied and injected into the liquid thin layer 32 inside the display element 31 through the circulation path 36. Therefore, while maintaining the reduced pressure state by the pressure reducing means 35, the thin liquid layer 32 is transferred to the circulation path 3.
6 to the vaporization chamber 33, from the vaporization chamber 33 to the liquefaction chamber 34, and then from the liquefaction chamber 34 back to the liquid thin layer 32. and secondly, it is effective in removing noise caused by pressure.

Furthermore, by providing the display element 31 with a cooling means 37 consisting of a heat dissipation means or a Bertier effect element, the diagonal effect can be enhanced.

In order to apply a thermal signal to the display element 31,
For example, an optical system 38 shown in FIG. 14 is used. In the figure, a laser beam 41 output from a laser oscillator 40 passes through a thin film waveguide deflector 42, and then is reflected by a galvanometer mirror 43 while scanning the surface of a display element 31 at high speed. The oscillator 40 includes an image signal circuit (
(not shown), specific image formation becomes possible. Furthermore, in reality, the display element 31 is intermittently irradiated with a laser beam having a spot diameter of approximately several tens of micrometers.

The actual image forming mechanism in the display element 31 has been explained in detail earlier, so the explanation thereof will be omitted here.In this way, the -C image is formed in the display element 31. While the image formation is completed, the observation light 4 is emitted from the illumination light source 44.
When 5a is irradiated toward the display element 31, the reflected light 4
5b passes through the magnifying projection lens system 46a, 46b -C
1. The enlarged screen will be projected onto a screen not shown. (FIG. 13) By the way, the liquid circulation system explained in FIG. 13 does not require the intervention of a forced liquid circulation device such as a pump. In other words, a liquid circulation system can be constructed by natural convection of liquid.

Even if a liquid circulation system like the one described above is adopted, the liquid should not be allowed to flow, since this will cause image disturbance at least during the period when vapor bubbles (display pixels) are formed in the liquid thin layer. should be avoided.

That is, it is desirable that the timing and speed of circulating the liquid be synchronized with the so-called display period of one frame. Further, the pressure reducing means 35 can be constructed using a vacuum pump or a solenoid valve, and the outer wall of the liquefaction chamber 34 is It is desirable to provide fins for the purpose of promoting heat dissipation.

The size of the vapor bubble assumed in the present invention explained above is approximately 10 μm to 1 μm in diameter, especially focusing on resolution.
It is about 00 μm. However, it is of course possible to implement the method outside the above range as long as resolution is not an issue.

Furthermore, if the time from when a heat pulse is applied to the liquid until the vapor bubbles are formed is called the rise time, the rise time is about 10 μsec.

Conversely, if we call the time when these vapor bubbles disappear or disappear, the fall time, the fast one is 3.
0 μsec. The rise time and fall time are determined by the liquid temperature in the thin liquid layer, the liquid pressure, the pulse application time,
It depends on heat dissipation conditions, etc., and is also easily influenced by the viscosity and surface tension of the liquid, so it cannot be generalized.

However, from the viewpoint of afterimage effects, etc., the fall time is not required to be very fast.

A desired fall time can be easily set by adjusting the composition of the liquid. Generally, the liquid used in the present invention is made from various solvents, dyes, pigments, etc. Dyes include direct dyes, acid dyes, and organic solvent dyes, and the solvent used is water.

Alcohol-based, glycol-based, ketone-based, ester-based,
Hydrocarbons include ethyl alcohol, methyl alcohol, isopropyl alcohol, ethylene glycol, ethyl cellosolve, diethyl glycol, freon, and mixtures thereof. Low boiling point solvents are advantageous in terms of power consumption because bubbles are generated at low temperatures.

If the bubbles are to remain as long as possible, especially if the display pixels are to remain, it is desirable to use a material that does not easily cool down and has a moderately high viscosity. In addition, especially when it is desired to variably adjust the bubble duration, it is effective to use the above-mentioned pressure reduction means. In other words, the lower the liquid pressure, the lower the temperature at which vapor bubbles are formed. Therefore, the lower the pressure within the liquid layer is made by the variable pressure reducing means, the longer the display will last. The method of reducing the pressure of the liquid is particularly effective when displaying still images or slow-motion videos.

As detailed above, the main effects of the present invention are as follows: 1. Since it is possible to arrange each minute vapor bubble in a high-density arrangement as a display pixel unit, a high-resolution image can be displayed.

2. Still images or moving images including slow motion can be easily displayed by adjusting the duration of vapor bubbles as display pixels in the liquid layer.

3. By employing a liquid circulation system in the display element, a noise-free and high-quality screen can be presented.

4. Multi-color display and pull-color display can be easily implemented.

5. Since the structure of the display element is relatively simple, its productivity is excellent, and the element has high durability and reliability.

6. Can be adapted to a wide range of drive systems.

There are many things that can be mentioned.

[Brief explanation of the drawing]

1 to 10 are schematic cross-sectional views illustrating an example of the configuration of a display element used in the present invention, and FIG. FIG. 12 is a perspective view of the external appearance for explaining one configuration example of the heating element;
The figure is a schematic configuration diagram of a display device as an example of application of the present invention.
FIG. 14 is an external perspective view of an example of the imaging signal input system. In the figure, ■ is the radiation absorption layer, 2.32 is the liquid thin layer, and 3 is the radiation absorbing layer.
is a protection plate, 4 and 18 are steam bubbles, 5 is radiation, 7+45a
is an observation light, 8 is an optical film, 9 is a pressure absorption film, 10 is a heating element layer, 11 is a color mosaic filter, 12 is a reflective layer,
13 is an insulating layer, 14.15°Xl, Xm, X
n, Xo, Xp, Yc, Yd, Ye
is a heating resistance wire, 16 is a support, 17.31 is a display element,
21 is a heating resistance layer, 22-1, 22-2, 22-3, 22
-4, 23-1, 23-2, 23-3, 23-4, 23
-5 is a conductor, 33 is a vaporization chamber, 34 is a liquefaction chamber, 35 is a pressure reduction means, 36 is a liquid circulation path, 37 is a heat radiation and cooling means, 38
is an optical system, and 41 is a laser beam. Procedural amendment (spontaneous) February/2, 1980 Commissioner of the Japan Patent Office Shima 1) Haruki Tono 1, Display of the case Patent Application No. 200777 of 1983 2, Invention title image display method 3, Amendment Relationship with the case of a person who does
) Canon Co., Ltd. Representative Noh Kaku 3 Department 4, Agent Address: Canon Co., Ltd., 3-30-2 Shimomaruko, Ota-ku, Tokyo 1413 (Telephone: 758-2111) 5, Details of the invention in the specification to be amended "Explanation" column and drawings (No. 9)
Figure) 6. Contents of amendment 1) The portions specified in the table below on pages 14 to 15 of the description are corrected as follows. 1-・ 14/ /1 14/ 14/ 14/1 14/1 14/1 14/1 14/1 15/ 2) Correct Figure 9 as shown in the attached sheet (in red).

Claims (1)

[Claims] 1mg/I display where the percentage sign is that the air bubbles generated in several layers are plotted as pixels and projected and displayed.