JP2019214364A - Sunshade apparatus - Google Patents

Abstract

To provide a sunshade apparatus which can display, for an operator of a sunshade member, an image of a scene including a region shaded by the sunshade member when the sunshade apparatus is used, and which hardly provides a dead angle even if it is placed at a use position when it is not used.SOLUTION: A sunshade apparatus 1 comprises: a plate sunshade member 2 formed with a dimming glass plate 20 in which penetrability of light can be changed; a display apparatus 3 in which a display part 3a is arranged on a surface of the sunshade member, which faces an operator when it is used, so that it is directed to the operator and which allows light to penetrate it; an imaging apparatus 4 for photographing a region to which the opposite surface of the surface is directed so as to generate image data; a data processing circuit for generating display image data to be displayed on the display part when the sunshade member is used on the basis of the image data generated by the imaging apparatus; and a switch 9 for switching penetrability of the light of the dimming glass plate.SELECTED DRAWING: Figure 1

Description

  The invention relates to a awning device.

  In vehicles and indoors of buildings, when sunlight directly enters a person's view, it is difficult to look straight out of the window because of the glare, and it is difficult to secure a normal view due to glare. It may be. In such a case, a sunshade device that blocks sunlight with a plate-shaped member having a certain size may be used. By arranging the sunshade near the window inside the cabin or the like, the sunshine inserted into the cabin or the like is blocked, and glare is reduced. In addition, for example, in a sunshade for an automobile, an attempt has been made to combine a sunshade that is positioned in front of the driver's eyes during use with another device. For example, Patent Document 1 discloses a awning device including a liquid crystal display device as a display unit of a television or a navigation system.

JP-A-7-234395

  As described above, the use of the awning reduces glare caused by sunlight. However, on the other hand, the use of the sunshade device blocks a part of the field of view from the inside of the vehicle compartment or the like. For this reason, a blind spot may occur in a scene outside a window that can be visually recognized from the inside of a room or the like. In particular, when the awning device provided in the driver's seat of the vehicle is positioned at the use position, blind spots are likely to occur in an upper region in front of the driver. Therefore, a traffic signal or a road sign placed above the position of the driver's eyes may be overlooked without being captured by the driver's view. Further, the conventional awning device is formed in such a size that only the area near the upper edge of the window is hidden by the awning device in order to secure a view in the front direction. However, such a sunshade device cannot sufficiently block the sunshine in a time zone where the altitude of the sun is low, such as in the morning or in the evening. Further, in the case of a conventional sunshade, particularly when used in a car, it is necessary to position the sunshade at a position not covering the windshield when the sun does not enter, and to move the sunshade to a use position when light shielding is required. Such an operation is complicated for the driver.

  Therefore, the present invention can display an image of a sight including an area hidden by the sunshade member when the sunshade device is used to the operator of the sunshade member, and furthermore, even when the sunshade device is not in use, the blind spot can be displayed. It is an object of the present invention to provide an awning device that is difficult to generate.

  The awning device of one embodiment of the present invention is a plate-shaped awning member formed using a light control glass plate capable of changing the light transmittance, and a surface facing an operator at the time of use of the awning member, A display device that is disposed with the display unit facing the operator, is capable of transmitting light, an imaging device that captures an area of the surface facing the opposite surface to generate imaging data, and an imaging device that is generated by the imaging device. A data processing circuit that generates display image data to be displayed on the display unit when the sunshade member is used based on data, and a switch that switches light transmittance of the light control glass plate. It is characterized.

  According to the present invention, it is possible to display an image of a sight including an area hidden by the sunshade member when using the sunshade device to the operator of the sunshade member, and furthermore, even when the sunshade device is not in use, the blind spot can be displayed. It is possible to provide an awning device that is difficult to generate.

It is a figure which shows the awning of Embodiment 1 of this invention in the state at the time of use. FIG. 2 is a front view showing a awning member and a display device of the awning device of the first embodiment. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is a figure which shows an example of the area | region imaged by the imaging device of the awning device of Embodiment 1 typically with a blind spot part of an operator. It is a figure explaining operation | movement of the light control glass plate of the awning device of Embodiment 1. It is a figure explaining operation | movement of the light control glass plate of the awning device of Embodiment 1. FIG. 2 is a diagram illustrating a cross-sectional structure of one pixel of a display device in the awning device according to the first embodiment. FIG. 3 is a diagram illustrating an example of a first detector of the awning device according to the first embodiment. FIG. 3 is a diagram illustrating an example of a second detector of the awning device of the first embodiment. It is a figure which shows another example of the 2nd detector of the awning device of Embodiment 1. It is a front view which shows an example of arrangement | positioning of each driver of the awning device of Embodiment 1. It is a side view which shows an example of arrangement | positioning of each driver of the awning device of Embodiment 1. It is a front view which shows the other example of arrangement | positioning of each driver of the awning device of Embodiment 1. It is a side view which shows the other example of arrangement | positioning of each driver of the awning device of Embodiment 1. It is a front view which shows the further another example of arrangement | positioning of each driver of the awning device of Embodiment 1. FIG. 2 is a block diagram illustrating main components of the awning device according to the first embodiment. It is a figure which shows an example of the angle of the awning member of the awning device of Embodiment 1, and an operator's line of sight. It is a figure which shows another example of the angle of the awning member of the awning device of Embodiment 1, and an operator's line of sight. FIG. 4 is a diagram illustrating a display image corrected by a data correction circuit of the awning device according to the first embodiment. FIG. 14C is a diagram illustrating the display image of FIG. It is a figure which shows the example of the blind spot part when the awning of Embodiment 1 blocks sunlight. It is a figure which shows an example of the display image corresponding to the blind spot part when the awning device of Embodiment 1 blocks the sunlight. FIG. 3 is a diagram conceptually illustrating an example of data stored in a memory circuit of the awning device according to the first embodiment. It is a figure showing an example of the picture highlighted and displayed by the awning device of Embodiment 1. It is a figure which shows the other example of the image highlighted and displayed by the awning device of Embodiment 1.

  Hereinafter, an embodiment of a awning device of the present invention will be described with reference to the drawings. In addition, the material and shape of each component in the embodiment described below, their relative positional relationship, and the like are merely examples. The awning device of the present invention is not construed as being limited by these. In the following, the awning device according to the first embodiment will be described by taking a awning device for a bus attached near the windshield as an example. However, the awning device of the present invention can be used not only in cars such as buses, trucks or ordinary cars, but also in various vehicles such as trains, ships and aircraft, and various buildings such as dwellings and office buildings.

<Embodiment 1>
FIG. 1 shows the awning device 1 of the first embodiment in a state where the awning device 1 is disposed in a vehicle cabin of a car (bus) C and is in a use state. FIG. 2 shows the awning member 2 and the display device 3 of the awning device 1, and FIG. 3 shows a cross-sectional view taken along line III-III of FIG. FIG. 4 schematically shows an imaging region 41 that is imaged by the imaging device 4 of the awning device 1.

  As shown in FIGS. 1 to 4, the awning device 1 of the present embodiment provides a plate-like awning member 2 and an operator of the awning member 2 when the awning member 2 is used, that is, the driver M in the present embodiment. A display device 3 disposed on the facing surface 2a with the display unit 3a facing the driver M. The awning member 2 is formed using a light control glass plate 20 that can change the light transmittance. The display device 3 is formed using a light-transmitting material that can transmit light. The awning device 1 further includes an imaging device 4 that captures an image of an area where the opposite surface 2b of the awning member 2 faces the opposite surface 2a to generate imaging data. In the following description, the “front surface 2a” of the awning member 2 is also referred to as the “first surface 2a” of the awning member 2. The opposite surface 2b of the front surface 2a is also referred to as the “second surface 2b” of the sunshade member 2. The awning device 1 further includes a data processing circuit 5 (FIG. 12) that generates display image data to be displayed on the display unit 3a of the display device 3 when the awning member 2 is used, based on the imaging data generated by the imaging device 4. And a switch 9 for switching the light transmittance of the light control glass plate 20 constituting the sunshade member 2. The switch 9 is conceptually shown as a rectangular functional block in FIG. Although not shown, the imaging device 4 and the data processing circuit 5 are connected so that data can be transmitted and received by wire or wirelessly.

  In the following description, “use” of the sunshade member 2 means that the sunshade member 2 is positioned at a position where the second surface 2b is illuminated by the sun, so that at least one of the suns that can irradiate the area to which the first surface 2a faces. This means that the part is blocked by the sunshade member 2. The “use state” of the sunshade member 2 is a state where the sunshade member 2 is “used”, and the “use position” of the sunshade member 2 is a position where the sunshade member 2 is in the “use state”.

  In the example shown in FIG. 1, the awning member 2 uses a flat U-shaped support member F1 and an engaging member F2 rotatably combined with the support member F1 to form a ceiling of the cabin of the automobile C. It is attached to the section. The light control glass plate 20 constituting the awning member 2 can change the light transmittance, and can transmit or block the light according to the change. The light control glass plate 20 includes two glass plates 21a and 21b provided to face each other, and a liquid crystal sheet 22 disposed between the glass plates 21a and 21b. As described later, the light control glass plate 20 changes the light transmittance based on the magnitude of the voltage applied to the liquid crystal sheet 22. The voltage applied to the liquid crystal sheet 22 is switched by the switch 9.

  The switch 9 is connected between, for example, a power supply unit (not shown) of a vehicle (a battery, an alternator, or a voltage regulator that generates a stabilized voltage by receiving power from a battery or the like) and a light control glass plate 20. It is an electric switch. In this case, the switch 9 switches between two states of application of a predetermined voltage to the light control glass plate 20 and non-application of the voltage. Further, the switch 9 may switch the voltage applied to the light control glass plate 20 connected to the output of the voltage regulator by changing the reference voltage that is the reference of the output voltage of a voltage regulator (not shown). For example, the switch 9 may be a variable resistor that is connected between the power supply unit and the ground line and that has an intermediate terminal connected to the reference voltage input terminal of the voltage regulator. In this case, the switch 9 can switch the light transmittance of the light control glass plate 20 stepwise or continuously. As the switch 9, any switching element that can switch between application and non-application of a voltage to the light control glass plate 20 or change the magnitude of the voltage applied to the light control glass plate 20 is used. The switch 9 may be operated by a human hand such as the driver M, or may be operated by other components of the awning device 1 as described later.

  As described above, the display device 3 is formed using a translucent material. Therefore, when the light control glass plate 20 is in a state of transmitting light by the switch 9, for example, a person inside the vehicle such as the driver M can see a scene outside the vehicle through the display device 3 and the sunshade member 2. it can.

  On the other hand, when the sunlight shines into the vehicle interior, the sunlight is blocked by lowering the light transmittance of the light control glass plate 20 using the switch 9. Further, based on the image data generated by the imaging device 4, an image of a scene outside the vehicle where the second surface 2 b of the sunshade member 2 faces can be displayed on the display unit 3 a of the display device 3. The display unit 3a of the display device 3 is a part (for example, a display screen) on which an image is actually displayed. In the present embodiment, almost the entire surface of the display device 3 facing the vehicle compartment is the display unit 3a. In FIGS. 1 to 3, for easy understanding, the display unit 3 a is drawn by a two-dot chain line along the periphery of the display device 3 and the surface facing the passenger compartment (in the drawings other than FIGS. The part 3a is omitted).

  FIG. 1 shows a state in which an image is displayed on the display device 3. The display device 3 shown in FIG. 1 has a traffic light S1, a regulation sign S2 indicating "prohibition of traveling outside the designated direction", and a main point. An image of a guide sign S3 indicating the above and an auxiliary sign S4 for displaying a time to be regulated by the regulation sign S2 and the like are displayed. The traffic signal S1 and the regulation sign S2 displayed on the display device 3 in FIG. 1 originally exist at a position that should be within the driver's view in the situation shown in FIG. However, if the light transmittance of the light control glass plate 20 is reduced to block the sunlight, the area where the traffic light S1 and the like exist is hidden by the sunshade member 2, and the traffic light S1 and the like are not directly visible to the driver M. Would. However, in the present embodiment, a scene outside the vehicle is imaged by the imaging device 4, and a scene originally to be seen at the position of the light control glass plate 20 is displayed on the display unit 3a of the display device 3 arranged toward the inside of the passenger compartment. Is displayed as an image. According to the awning device 1 of the present embodiment, the driver M or the like can check a road sign, a traffic light, or the like without overlooking it even under backlight. In Japan, as the road signs, the above-mentioned regulatory signs and information signs, as well as the main signs including the instruction signs indicating specific permits and orders and the warning signs urging caution, and auxiliary signs are provided. According to the awning device 1 of the present embodiment, a scene hidden by the light control glass plate 20 having a reduced light transmittance is displayed on the display device 3. Even letters written on guide signs and auxiliary signs can be clearly checked.

  As illustrated in FIG. 4, the imaging device 4 captures an imaging region 41 including a blind spot B blocked by the light control glass plate 20 having a reduced light transmittance in the field of view of the driver M. It is arranged in the car C. A region including the blind spot portion B is imaged by the imaging device 4 arranged as described above, and imaging data is generated. Display image data based on the imaging data is generated by the data processing circuit 5 (see FIG. 12) and sent to the display device 3. As a result, an image of a sight including a region that can be a blind spot portion B can be displayed on the display device 3 (see FIG. 1) toward the driver M. The driver M can visually recognize, via the display device 3, a portion of the scene hidden by the light control glass plate 20 having a reduced light transmittance. Therefore, it is possible to reduce the possibility of the driver M overlooking a traffic light, a road sign, and the like under the sunshine in which the sunshade member 2 is used. It is considered that the awning device 1 of the present embodiment can contribute to ensuring traffic safety.

  Further, in the present embodiment, even if the sunshade member 2 is positioned at a position where it can be used, as long as the light transmittance of the dimming glass plate 20 is high, the sunshade member 2 allows the driver M to see the field of view. There is no blind spot. Therefore, when the awning member 2 is not used, it is not always necessary to move the awning member 2 to the non-use position. That is, the movement of the awning member 2 is not necessarily required between when it is necessary to block the sun and when it is not necessary to block the sun. When it is necessary to block the sun, the sun can be blocked or at least its intensity can be reduced simply by lowering the light transmittance of the light control glass plate 20. Further, when it is not necessary to block the sunlight, simply increasing the light transmittance of the light control glass plate 20 allows the outside scene to be seen at the position of the light control glass plate 20 to be seen from the inside of the vehicle compartment. be able to. The burden on the driver M and the like related to the movement of the conventional sunshade device, which is required when the state of incidence of the sun changes due to a change in the traveling direction of the vehicle or the like, is reduced.

  In addition, in the awning device 1 according to the present embodiment, substantially no blind spot occurs in the field of view of the driver or the like regardless of whether the awning member 2 is used or not used. Accordingly, the awning member 2 covers not only the upper edge of the window (the windshield of the automobile in the example of FIGS. 1 to 4) but also a wider area, for example, the upper half area of the window as shown in FIG. It can even be formed in such a size. By reducing the light transmittance of the light control glass plate 20 while securing the visibility without any problem when using or not using the sunshade member 2, the sunlight coming from the sun at a relatively low altitude is also blocked. be able to. The awning device 1 of the present embodiment is particularly suitable as a awning device for a bus or a truck having a wide windshield in the vertical direction.

  In the present embodiment, the imaging device 4 is formed separately from the awning member 2 and is arranged inside the automobile C. The imaging device 4 is arranged such that all of the blind spots B that can be generated by the light control glass plate 20 whose transmittance has been reduced fall within the imaging region 41 at a position as close as possible to the driver M. For example, a camera provided with a lens having an angle of view capable of providing such an imaging region 41 is used as the imaging device 4. Alternatively, the imaging device 4 is arranged at a position and an angle suitable for obtaining such an imaging region 41. As shown in FIG. 4, the imaging device 4 is preferably located at a position where the driver M, the sunshade member 2 and the imaging device 4 are arranged substantially linearly in the front-rear direction of the automobile C, and preferably in a blind spot portion B. And the center of the imaging area 41 are aligned at an angle such that they coincide with each other. As shown in FIG. 4, when the sunshade member 2 and the imaging device 4 are arranged, even in the imaging device 4 including a lens with a small angle of view, it is easy to fit the blind spot portion B in the imaging region 41. Become. If the imaging device 4 has appropriate durability against wind and rain and stain resistance, the imaging device 4 may be arranged outside the vehicle.

  The imaging device 4 is not limited to the position shown in FIG. 4, and may be arranged at any position where an appropriate imaging region 41 can be obtained. For example, the imaging device 4 may be disposed at the center of the windshield of the vehicle C in the left-right direction (the width direction of the vehicle C), for example, at the back surface of the rearview mirror (rear view mirror) (the surface facing the front of the vehicle C). Good. Further, the imaging device 4 may be arranged near a left-right edge of a windshield of the automobile C or on a dashboard (not shown). It is preferable that at least a surface of the windshield facing the imaging device 4 facing the outside of the vehicle is provided with an antifouling coating using a photocatalytic effect such as titanium oxide. Further, the imaging device 4 may be arranged on the second surface 2b of the awning member 2. However, as described later, since the awning member 2 can be used at an arbitrary position (angle), the imaging device 4 is supported by a different object from the awning member 2 in securing a stable imaging area 41. Preferably, they are arranged as far as possible.

  The imaging device 4 is not particularly limited as long as it can image a scene of a desired imaging region and can generate imaging data in a format that can be processed by the data processing circuit 5. For example, the imaging device 4 is exemplified by a digital camera having a CCD image sensor or a CMOS image sensor. Light energy based on the scene in the imaging area is converted into electric signals by light receiving elements arranged in a matrix inside a CCD image sensor or the like for each small area, and imaging data based on those electric signals is generated. . Preferably, a camera or the like having an image sensor capable of taking a color image is used for the imaging device 4.

  In FIG. 4, the imaging device 4 is schematically shown in an enlarged manner in a circle Z indicated by a dashed line. The imaging device 4 of the awning device 1 of the present embodiment includes a lens 4b having a surface on which a coating layer 4a that reduces light reflection by adjusting the refractive index is formed. The imaging device 4 captures an image of an area where the second surface 2b, which is illuminated by the sun, faces when the awning member 2 is used. Therefore, the imaging device 4 is required to shoot under backlight. Therefore, the lens 4b of the imaging device 4 is provided with the coating layer 4a. The cover layer 4a can suppress the occurrence of flare and ghost, which are likely to occur in shooting under backlight. The coating layer 4a can be formed by forming a large number of nano-sized wedge-shaped structures on the surface of the lens 4b, or by forming a layer of nano-sized fine particles on the surface of the lens 4b. Note that the imaging device 4 does not necessarily need to include a lens having the coating layer 4a.

  The operation of the light control glass plate 20 will be described with reference to FIGS. 5A and 5B. 5A and 5B schematically show a cross-sectional structure of the light control glass plate 20. As shown in FIG. 5A and FIG. 5B, the light control glass plate 20 specifically includes, in addition to the two glass plates 21 a and 21 b described above, two conductive films 22 b and 22 c that transmit light. And liquid crystal molecules 22a sealed between the two conductive films 22b and 22c. The liquid crystal sheet 22 is constituted by the conductive films 22b and 22c and the plurality of liquid crystal molecules 22a.

  As a type of the glass plates 21a and 21b, a float glass is exemplified, but the type of the glass plates 21a and 21b is not particularly limited as long as it has a certain translucency. Generally, inorganic glass is suitably used for the glass plates 21a and 21b, but an organic glass may be used for the glass plates 21a and 21b. For example, a translucent plastic plate such as acrylic glass may be used. May be used. The material of the conductive films 22b and 22c is not particularly limited as long as the material has translucency and conductivity. For example, indium tin oxide (ITO), zinc oxide, or the like can be used for the conductive films 22b and 22c. In addition, as described later, the display device 3 is preferably an organic EL display panel, and the display device 3 may include an organic material. In order to reduce stress on the organic material caused by ultraviolet rays and heat, it is preferable that the light control glass plate 20 has a light shielding property against ultraviolet rays and / or infrared rays. For example, an intermediate film (not shown) that absorbs ultraviolet light or infrared light may be provided between the two glass plates 21a and 21b. Alternatively, a layer that blocks and / or reflects ultraviolet light and / or infrared light may be formed on the surface of the light control glass plate 20 that forms the second surface 2b of the sunshade member 2. When a plastic plate is used as the glass plates 21a and 21b of the light control glass plate 20, it is particularly preferable to form a layer that blocks and / or reflects ultraviolet light and / or infrared light on the second surface 2b.

  The liquid crystal molecules 22a have an elliptical shape. As shown in FIG. 5A, when a predetermined voltage is applied between the conductive films 22b and 22c, the plurality of liquid crystal molecules 22a are substantially parallel to the thickness direction of the light control glass plate 20. Orientation. As a result, light can pass through the light control glass plate 20.

  On the other hand, as shown in FIG. 5B, when no voltage is applied to the conductive films 22b and 22c, the plurality of liquid crystal molecules 22a turn their ellipsoidal shapes in arbitrary directions into the liquid crystal sheet 22. Existing. In the state shown in FIG. 5B, light is blocked by the light control glass plate 20 (specifically, the liquid crystal molecules 22a). The orientation of the plurality of liquid crystal molecules 22a changes based on the magnitude of the voltage applied between the conductive films 22b and 22c. Therefore, by controlling the magnitude of the voltage applied between the conductive film 22b and the conductive film 22c, the light transmittance of the light control glass plate 20 can be controlled.

  The awning device 1 of the present embodiment may further include a control circuit 7 (see FIG. 12) that controls the on / off state of the display device 3 based on the light transmittance of the light control glass plate 20. When the sunlight is blocked by the light control glass plate 20, the operation by the driver of the vehicle or the like required to display the scene hidden by the light control glass plate 20 on the display device 3 can be reduced. For example, a light control glass plate comparator (not shown) that compares a voltage currently applied to the light control glass plate 20 with a voltage that causes a predetermined light transmittance to the light control glass plate 20 is further provided. The awning device 1 may be provided. The control circuit 7 may switch the display device 3 between the on state and the off state based on the output of the light control glass plate comparator. An illuminance sensor (not shown) that can detect the intensity of light may be provided on each of the first surface 2a and the second surface 2b of the sunshade member 2. When the difference between the outputs of the two illuminance sensors is smaller than a predetermined reference value, the control circuit 7 controls the display device 3 to be turned off. When the difference is larger than the reference value, the display device 3 is turned on. It may be controlled to a state. By controlling the display device 3 in such a manner, when the light transmittance of the light control glass plate 20 falls below a predetermined reference value, the display device 3 is turned on, and an image is displayed on the display device 3.

  Referring again to FIGS. 2 and 3, the awning member 2 and the display device 3 will be described in more detail. The sunshade member 2 has a plate-like shape, and has a substantially rectangular shape as a whole on the first surface 2a and the second surface 2b. An engagement member F2 is provided at each of the left and right ends of one of the two edges 2d1 and 2d2 of the sunshade member 2 that are substantially parallel to the longitudinal direction. The awning member 2 is attached to the upper part of the window (for example, the ceiling of the automobile C) via the engaging member F2 and the support member F1 such that the edge 2d1 is on the upper side when the awning member 2 is used.

  The display device 3 is formed of a translucent material, and displays an image based on display image data generated by the data processing circuit 5 (see FIG. 12) on the display unit 3a. The display device 3 is not particularly limited as long as it has such an image display function and can be made of a translucent material. Examples of the display device 3 include an organic EL display panel and a liquid crystal display panel that can be formed into a thin shape. However, in principle, a color filter or a backlight which can be a factor for lowering light transmission is required. The organic EL display panel is not particularly preferable as the display device 3.

  The display device 3 is fixed to the awning member 2 by, for example, an optical transparent adhesive (OCA: Optical Clear Adhesive) provided in a sheet state. Instead of the OCA, the display device 3 may be joined to the sunshade member 2 using an optical transparent resin (OCR: Optical Clear Resin) which is provided in a liquid state and is cured by UV irradiation. However, means for fixing the display device 3 to the sunshade member 2 is not limited to these.

  FIG. 6 illustrates a cross-sectional view of one pixel of the organic EL display panel 30 that can constitute the display device 3. A switch element such as a TFT 38 is formed for each of R, G, and B sub-pixels on a flexible film 37 made of resin or the like, and a first electrode (for example, an anode) is formed on a planarizing film 31 formed thereon. ) 32 are formed. The flexible film 37 is formed of, for example, a transparent polyimide resin. The first electrode 32 is formed of, for example, a light-transmitting conductive material such as an ITO film, and is connected to a switching element such as a TFT 38. The TFT 38 is formed of, for example, a transparent amorphous oxide semiconductor such as an oxide made of indium, gallium, and zinc. Note that the TFT 38 does not necessarily need to be formed of a light-transmitting material. For example, the TFT 38 may be formed using low-temperature polysilicon (LTPS) outside each pixel region. Further, the TFT 38 may be formed using an organic semiconductor material, such as pentacene, copper phthalocyanine, or fluorinated phthalocyanine, which has more extensibility than the inorganic semiconductor material. Instead of the flexible film 37, a rigid translucent plate material such as a glass plate may be used as the base material.

An insulating bank 33 made of SiO ₂ or the like is formed between the sub-pixels. An organic layer 34 is deposited in a region surrounded by the insulating bank 33. Although FIG. 6 shows the organic layer 34 as a single layer, in practice, the organic layer 34 may be formed of a multilayer film of a plurality of layers made of different organic materials.

A second electrode (for example, a cathode) 35 is formed on the organic layer 34 by an evaporation method or the like so that the second electrode (for example, a cathode) has transparency by forming an Mg—Ag alloy layer or an alkali metal layer sufficiently thinner than the wavelength of light. It is formed. Further, on the surface of the second electrode 35, a protective film 36 made of, for example, Si ₃ N ₄ is formed. Each element shown in FIG. 6 is entirely sealed by a sealing layer made of a resin film or the like (not shown) so that the organic layer 34 and the second electrode 35 do not absorb moisture, oxygen, and the like. Note that the cross-sectional structure shown in FIG. 6 is merely an example, and the structure of the organic EL display panel 30 constituting the display device 3 and the material of each component are not limited to the structures and materials described here.

  In the organic EL display panel 30 used in the awning device 1 of the present embodiment, the first electrode 32 and the second electrode 35 are formed at substantially the same intervals in each of the R, G, and B sub-pixels. Have been. In other words, the distance between the first electrode 32 and the second electrode 35 is not intentionally made different for each color sub-pixel. On the other hand, in a general organic EL display panel, in order to increase the intensity of light emitted in a direction perpendicular to the display surface of the panel, light emitted from the organic layer is repeatedly reflected between the anode and the cathode. The distance between the anode and the cathode of each sub-pixel matches the wavelength of light of the color emitted by the sub-pixel (microcavity structure). That is, in a general organic EL display panel, the distance between the anode and the cathode differs for each color sub-pixel.

  On the other hand, in the awning device 1 of the present embodiment, the display device 3 can be seen by a driver or the like from an arbitrary angle. Therefore, it is not particularly necessary to increase the intensity of light emitted in the direction perpendicular to the display surface of the display device 3, but rather, R, G, B so that chromaticity does not change significantly even when the angle changes. It is important to match the viewing angle dependence of each color. Therefore, unlike the general organic EL display panel, the first electrode 32 and the second electrode 35 of the organic EL display panel 30 used in the awning device 1 of the present embodiment do not use the microcavity effect. For example, the first electrode 32 and the second electrode 35 may be separated by substantially the same distance between the R, G, and B sub-pixels. In other words, the distance between the cathode and the anode in each sub-pixel does not have to match the wavelength of light emitted by that sub-pixel. That is, the organic EL display panel 30 includes a plurality of sub-pixels, and each of the plurality of sub-pixels has two electrodes disposed at intervals different in length from the wavelength of light emitted from each of the plurality of sub-pixels. May be included.

  The awning device 1 of the present embodiment may further include a detector (first detector 6) that detects the position of the eye of the operator (the driver M in the present embodiment) of the awning member 2. The first detector 6 is, for example, as shown in FIG. 7, an eye detection camera 6a, 6b installed at each of two known positions, and an analyzer that analyzes captured images of the eye detection cameras 6a, 6b. (Not shown). Each of the eye detection cameras 6a and 6b includes, for example, a far-infrared sensor, and generates temperature data of each part in the imaging region. An ordinary person's eyeball is characterized by being cooler than other parts of the face. The analysis device (not shown) specifies the position of the face of the driver M and the position of the eyes in the image captured by the eye detection cameras 6a and 6b based on the temperature data generated by the eye detection cameras 6a and 6b. A general digital camera may be used as the eye detection cameras 6a and 6b, and the position of the eye may be specified by image recognition in an analyzer (not shown).

  By specifying the position of the driver M's eye in the captured images of the eye detection cameras 6a and 6b, a straight line L1 connecting the two eye detection cameras 6a and 6b at known positions, and the eye detection camera 6a , 6b and the straight lines connecting the eyes of the driver M, θ1 and θ2 are specified. Then, based on the length of the straight line L1 and the angles θ1 and θ2, the position of the driver M's eyes with respect to the eye detection cameras 6a and 6b is specified using trigonometry. Only one of the positions of both eyes of the driver M may be specified, or the position of both eyes may be specified. When the positions of both eyes are specified, for example, the position of the midpoint of the line connecting both eyes is calculated, and the position of the midpoint is treated as the position of the eye of the driver M. In addition, when one of the eyes is used preferentially during driving (for example, when the driver M has damaged the other eye, or when the operator wants to view an image with effective eyes, etc.), the shade of the present embodiment is used. The device 1 preferably has an auxiliary unit that switches from a setting based on both eyes to a setting based on one eye and has an auxiliary unit that specifies which of the right eye and the left eye to use, and is input to the auxiliary unit. The information is used for data processing by a display target data selection circuit 53 described later. The eye detection cameras 6a and 6b are arranged, for example, one by one in the vicinity of the pillar of the automobile C or the windshield in the center in the vehicle width direction. However, the eye detection cameras 6a and 6b are not limited to the positions shown in FIG. 7 and may be provided at any positions where the position of the eyes of the driver M can be detected. A method of using the detection result of the first detector 6 will be described later.

  The awning device 1 of the present embodiment may further include a detector (second detector 8) that detects the position of the awning member 2, as shown in FIGS. 8A and 8B. The second detector 8 detects the position of the awning member 2 in order to identify at least the use state and the non-use state of the awning member 2. The second detector 8 preferably detects the position of the sunshade member 2 by detecting the angle of the first surface 2a of the sunshade member 2 (for example, the angle with respect to the vertical direction of the automobile C).

  FIG. 8A shows an angle sensor 8 a as an example of the second detector 8. In the example of FIG. 8, the angle sensor 8a is a rotation angle detection sensor using a rotary potentiometer. The angle sensor 8a in FIG. 8A includes a movable portion 8a1 that rotates together with the sunshade member 2 and the engagement member F2 around the support member F1, and a fixed portion 8a2 that is fixed to the support member F1. It is arranged at an engaging portion with the engaging member F2. The angle sensor 8a detects the difference in the position in the circumferential direction about the support member F1 between the fixed portion 8a2 and the movable portion 8a1 that rotates together with the sunshade member 2, thereby detecting the angle of the sunshade member 2, That is, the position in the rotation direction is detected.

  In the example shown in FIG. 8B, the awning member 2 includes a magnetic sensor 8b as the second detector 8 near the edge 2d2 opposite to the edge 2d1 to which the engaging member F2 is attached. FIG. 8B shows an example of the usage state of the sunshade member 2 as a view from the side of the driver M. The awning member 2 is rotatably connected to the support member F1 using an engagement member F2. The awning member 2 is positioned from the non-use position P0, which is an unused position, to a use position such as the use position P1 by being rotated about the support member F1. Note that the use position P1 is merely an example of the use position of the sunshade member 2, and the sunshade member 2 can be used at any position that can block at least a part of the sun inserted into the vehicle interior.

  As shown in FIG. 8B, the magnet 81 is arranged at a position close to the magnetic sensor 8b when the awning member 2 is at the non-use position P0. Further, the magnet 82 is arranged at a position close to the magnetic sensor 8b when the sunshade member 2 is at a position (the use position P1 in the example of FIG. 8B) rotated farthest from the non-use position P0 about the support member F1 as an axis. Have been. The magnets 81 and 82 can be arranged, for example, on the surface of the interior material constituting the ceiling of the vehicle compartment or on the back side thereof, or on the surface or inside of the pillar.

  The magnets 81 and 82 are arranged, for example, with the same magnetic pole (N pole or S pole) facing the magnetic sensor 8b. The magnetic sensor 8b moves in a magnetic field generated by the magnet 81 and the magnet 82 with the rotation of the sunshade member 2. The magnetic sensor 8b detects the direction and strength of the magnetic field at its own position, and electrically outputs a detection result, for example. By using the magnetic sensor 8b and the magnets 81 and 82, it is possible to detect whether the awning member 2 is at the non-use position P0 or at a predetermined use position, for example, the use position P1. The magnetic sensor 8b can be constituted by, for example, a Hall element or simply a magnetic coil. The second detector 8 only needs to be able to detect the position of the awning member 2, and is not limited to the examples shown in FIGS. 8A and 8B. For example, a magnet may be provided at the position of the magnetic sensor 8b in FIG. 8B, and a magnetic sensor may be provided as the second detector 8 at each of the positions of the magnets 81 and 82. Further, only one of the magnets 81 and 82 may be arranged.

  When the second detector 8 is provided, the awning device 1 is preferably provided with the aforementioned control circuit 7 (see FIG. 12), and the second detector 8 is connected to the control circuit 7. In this case, the control circuit 7 may determine whether or not the awning member 2 is at the use position based on at least the detection result of the second detector 8. The control circuit 7 may control the on / off state of the display device 3 based on the light transmittance of the light control glass plate 20 and the detection result of the second detector 8.

  For example, when the light transmittance of the light control glass plate 20 is equal to or greater than the predetermined reference value, the control circuit 7 does not block the sunlight, and thus the image display on the display device 3 is not performed. It may be determined that the display device 3 is unnecessary, and the display device 3 may be controlled to the off state regardless of the position of the sunshade member 2. Then, when the light transmittance of the light control glass plate 20 falls below a predetermined reference value, the control circuit 7 may control the on / off state of the display device 3 based on the detection result of the second detector 8. For example, if the detection result of the second detector 8 indicates that the awning member 2 is located farther from the non-use position P0 than the predetermined position, the control circuit 7 determines that the awning member 2 is in the use position. May be determined. Then, when the display device 3 is in the off state at that time, the control circuit 7 may control the display device 3 to be in the on state, and display an image on the display device 3. If the detection result of the second detector 8 indicates that the sunshade member 2 is closer to the non-use position P0 than the predetermined position, the control circuit 7 determines that the sunshade member 2 is at the nonuse position. You may decide. Then, when the display device 3 is in the ON state at that time, the control circuit 7 may control the display device 3 to be in the OFF state and stop displaying the image. When the awning device 1 has such a configuration, the driver M operates the awning member 2 and / or changes the light transmittance of the light control glass plate 20 to display an image on the display device 3. Can be displayed or the display can be stopped.

  The second detector 8 is not limited to the angle sensor 8a or the magnetic sensor 8b, and may be any detector that can detect an event that changes based on the position (angle) of the sunshade member 2, such as a gravity sensor. Good. Note that the second detector 8 does not necessarily have to be provided. That is, on / off control of the display device 3 may be performed by the operator of the sunshade member 2.

  The transmittance of the light control glass plate 20 and the display of an image on the display device 3 do not necessarily have to be linked. For example, an image may be displayed on the display device 3 when the transmittance of the light control glass plate 20 is high. For example, in a situation where the outside of the vehicle is dark, such as at night, the display device 3 can display an image that can be sufficiently visually recognized by the driver even when the light transmittance of the light control glass plate 20 is high. In such a case, any information may be displayed on the display device 3. On the other hand, in a situation where there is no object to be visually recognized in a portion hidden by the light control glass plate 20 having a low light transmittance. Alternatively, the display device 3 may be turned off regardless of the light transmittance of the light control glass plate 20.

  As shown in FIGS. 9A and 9B, the awning device 1 of the present embodiment is provided separately from the display device 3 and outputs a signal used for driving pixels of the display device 3 (first driver 11). May be further provided. The first driver 11 outputs a signal for driving the pixels of the display device 3 based on the display image data generated by the data processing circuit 5 (see FIG. 12). The first driver 11 may be configured by, for example, a display device driver IC, a display device driver IC mounting board, and the like. By the first driver 11, for example, a source signal and a gate signal necessary for displaying an image on the display device 3 are generated at appropriate timing and output as an output signal.

  The display device 3 may include a driver (second driver 12) that drives the pixels of the display device 3 based on the output signal of the first driver 11. The second driver 12 is formed, for example, on the surface of the display device 3 or inside thereof. The second driver 12 can be composed of, for example, a plurality of transistors formed inside the display device 3 similarly to the TFT 38 (see FIG. 6) of the display device 3 (see FIGS. 9A and 9B and FIGS. 10A to 11 schematically show the second driver 12 on the surface of the display device 3 with the thickness and the length in the short side direction exaggerated for easy understanding.)

  The first driver 11 and the second driver 12 are connected by a wiring 11a. The wiring 11a is, for example, a conductor pattern forming a flexible printed wiring board. Although not shown, the second driver 12 is connected to the TFT 38 of each pixel of the display device 3 by a wiring formed in the display device 3. A plurality of wirings (not shown) connecting the second driver 12 and the TFT 38 of each pixel are provided according to the number of columns or rows of a plurality of pixels arranged in a matrix in the display device 3. .

  On the other hand, the first driver 11 is connected to the data processing circuit 5 (see FIG. 12) or any relay circuit (not shown) provided between the data processing circuit 5 and the first driver 11 by the conductive line 11b. ing. The conductive line 11b may be configured by a plurality of conductive lines arranged in parallel or bundled. In the example of FIGS. 9A and 9B, the conductive wire 11b is inserted into the inside of the support member F1 formed using a tubular material. The first driver 11 includes a connection portion 11c for connecting to the conductive line 11b. The first driver 11 and the conductive wire 11b can be connected at the connection portion 11c by thermocompression bonding using an anisotropic conductive film or the like, soldering, fitting of a connector, or the like.

  The first driver 11 generates a drive signal corresponding to the column or row of each pixel of the display device 3. Therefore, the first driver 11 and the second driver 12 are connected by a number of wirings 11 a according to the number of columns or rows of pixels in the display device 3. However, the first driver 11 and the data processing circuit 5 (see FIG. 12) can be connected by about several tens of conductive lines 11b. Therefore, it is sufficient to connect the first driver 11 to the data processing circuit 5 and the like by the plurality of conductive wires 11b individually formed by single wires or stranded wires without using a relatively expensive flexible printed wiring board or the like. Can be possible. In addition, the degree of freedom in designing the connection structure between the data processing circuit 5 and the first driver 11 is improved.

  9A and 9B, the display device 3 has a substantially rectangular display screen 3b, and the first driver 11 is provided at the edge of the sunshade member 2 at the first edge along the longitudinal direction of the display screen 3b. It is arranged in the section 2e1. The first edge portion 2e1 is an edge of the awning member 2 to be directed upward (for example, a ceiling portion of the cabin of the automobile C in the example of FIG. 1) when the awning member 2 is used, and a portion in the vicinity thereof. As described above, since the first driver 11 is configured by a display device driver IC that does not necessarily have translucency, the first driver 11 may generate a blind spot in the field of view of the operator of the sunshade member 2. However, by disposing the first driver 11 at the first edge 2e1 of the sunshade member 2, it is possible to limit the blind spot that can occur in the driver's view to only the upper edge of the window such as the windshield. In addition, since the movement of the line of sight of the person is smoother in the horizontal direction than in the vertical direction, it is considered that it is more difficult for the driver to give the impression of being disconnected when there is a broken portion in the vertical direction.

  9A and 9B, the first driver 11 is disposed on the side surface of the sunshade member 2 at the first edge 2e1 of the sunshade member 2. In the case where the first driver 11 has a flat shape, arranging the first driver 11 on the side surface of the sunshade member 2 so that the side surface faces the driver or the like reduces blind spots that can be generated by the first driver 11. This is preferable because it can be reduced. However, the first driver 11 may be arranged on the first surface 2a or the second surface 2b of the awning member 2.

  Further, when the first driver 11 is disposed at the edge along the longitudinal direction of the display screen 3b, the number of pixels to which each of the driving elements constituting the first driver 11 should transmit a drive signal is reduced. As a result, the length of the wiring (including the wiring 11a and the internal wiring of the display device 3) between the first driver 11 and the pixel farthest from the first driver 11 can be reduced. Heat generation due to voltage drop and conductor resistance in each wiring can be reduced. When a current-driven organic EL display panel is used for the display device 3, the arrangement of the first driver 11 and the second driver 12 as shown in FIG. 9A and the like is particularly preferable.

  The first driver 11 may be provided separately from the awning member 2, as shown in FIGS. 10A and 10B. The occurrence of blind spots by the first driver 11 can be reliably prevented. 10A and 10B, the awning device 1 includes a flexible film 11d having a wiring 11a, and the first driver 11 and the display device 3 are connected by the wiring 11a. The flexible film 11d is connected to a portion along the longitudinal direction of the display screen 3b at the edge of the display device 3 having the substantially rectangular display screen 3b. Further, in relation to the awning member 2, the flexible film 11 d is displayed at the first edge 2 e 1 of the awning member 2 along the longitudinal direction of the display screen 3 b and to be turned upward when the awning member 2 is used. It is connected to the device 3. As in the example shown in FIG. 9A and the like, the length of the wiring between the first driver 11 and the pixel farthest from the first driver 11 can be reduced. The flexible film 11d is connected to the display device 3 by, for example, thermocompression bonding using an anisotropic conductive film (not shown) or the like, and preferably, the connection portion is covered with an epoxy resin or the like.

  The flexible film 11d is formed using, for example, a polyimide resin or the like, and a flexible printed wiring board is configured by the flexible film 11d and the wiring 11a. Even if the sunshade member 2 rotates, the connection between the first driver 11 and the display device 3 is normally maintained by the wiring 11a supported by the flexible film 11d. In the example of FIG. 10B, a coverlay 11d1 for protecting the wiring 11a is provided on the flexible printed wiring board. The first driver 11 is, for example, provided between an interior material (not shown) forming a ceiling portion of a cabin of a vehicle C (see FIG. 1) and an exterior plate forming a roof of the vehicle (vehicle C). Can be arranged.

  The surface of the flexible film 11d may be covered with an opaque cover member that is flexible or can be bent at least at one position. 10A and 10B, the surface of the flexible film 11d is covered by a cover member 11e. Since the flexible film 11d is formed of polyimide or the like as described above, the flexible film 11d generally has a brown color and is considered not to give a driver or the like a particularly beautiful appearance. However, the appearance quality can be improved by providing the flexible film 11d with a cover member having a desired decorative property. Further, accumulation of dust and the like on the flexible film 11d and the wiring 11a can be prevented, and furthermore, a short circuit failure between the wirings 11a due to moisture due to dust and dew condensation can be prevented. 10A and 10B, the cover member 11e is provided on both sides of the flexible film 11d. However, the cover member 11e is, for example, a driver M (see FIG. 3) in the flexible film 11d. ) May be provided only on the surface or the opposite surface. Further, the front and back surfaces of the flexible film 11 may be collectively covered by a hollow cover member.

  The cover member 11e is formed of an arbitrary material such as a metal or a resin, for example, and is preferably formed of an insulating material. When the cover member 11e is formed of a material having rigidity, a bendable portion may be provided in at least one place by connecting individually formed members with a hinge or the like. The cover member 11e can have an arbitrary structure that can be bent at at least one place so as not to significantly limit the bending of the flexible film 11d. The cover member 11e may be bonded to the flexible film 11d, the cover lay 11d1, or the like using, for example, an insulating adhesive. The cover member 11e may be formed by any means. Can be fixed.

  In the example shown in FIGS. 10A and 10B, the second driver 12 is also covered by a cover member 11e that covers the flexible film 11d. Accumulation of dust and the like on the second driver 12 can be prevented, and a short circuit failure between a plurality of transistors included in the second driver 12 can be prevented. However, the cover member 11e does not necessarily need to cover the second driver 12.

  As described above, when the display device 3 has the rectangular display screen 3b, the first driver 11 is preferably arranged at the edge of the sunshade member 2 along the longitudinal direction of the display screen 3b. However, the first driver 11 may be arranged on the edge of the awning member 2 along the short side direction of the display screen 3b. For example, when the edge of the sunshade member 2 along the short side direction is less noticeable than the edge along the long side direction of the display screen 3b, the first driver 11 is preferably provided. As shown in FIG. 11, the display screen 3b is arranged at the edge along the short side direction.

  In the example of FIG. 11, the display device 3 includes a substantially rectangular display screen 3b, and the first driver 11 is disposed on the second edge 2e2 along the short side direction of the display screen 3b at the edge of the sunshade member 2. Have been. In this example, the first driver 11 is arranged on the first surface 2a of the awning member 2. The second driver 12 is provided at an edge of the display device 3 adjacent to the second edge 2e2 of the sunshade member 2 along the short side direction of the display screen 3b. The awning member 2 is fixed to, for example, a support member F1 extending from a ceiling portion of a cabin of the automobile C (see FIG. 1) by an engagement member F2 attached to the second edge 2e2. As in the example shown in FIG. 9A and the like, the first driver 11 is connected to the conductive line 11b by thermocompression bonding or the like at the connection portion 11c, and the conductive line 11b is inserted into the inside of the support member F1. .

  The support member F1 illustrated in FIG. 11 may be provided with a bent portion F1a at a desired location by a hinge (not shown) or the like. Then, by extending and bending the support member F1 at the bent portion F1a, the awning member 2 may be positioned at the non-use position P0 and any use position (for example, use position P1) as shown in FIG. 8B described above. In this case, when the first driver 11 is arranged as shown in FIG. 11, mechanical stress that can be applied to the connection portion 11c between the first driver 11 and the conductive wire 11b with the movement of the position of the sunshade member 2 Is thought to be reduced. It is considered that the deterioration of the strength of the connection portion 11c is suppressed.

  The second edge 2e2 is an edge along the up-down direction of the automobile C when the sunshade member 2 is used for a windshield of the automobile C (see FIG. 1). Preferably, the edge is to be located closer to the door than the center in the vehicle width direction. That is, when the sunshade member 2 is used for the driver's seat provided on the right side of the car C, the first driver 11 preferably operates as shown in FIG. It is located on the right edge towards. When the sunshade member 2 is used for the driver's seat provided on the left side of the automobile C, the first driver 11 preferably moves to the left edge of the sunshade member 2 toward the first surface 2a. Be placed. Similarly, when the sunshade member 2 is used for the front passenger seat of the vehicle C, the first driver 11 is preferably arranged at an edge closer to the door than the center of the vehicle C. Even when the blind spot is generated by the first driver 11, it is considered that there is little visual unnaturalness given to the driver or the like.

  FIG. 12 is a block diagram showing main components of the awning device 1 of the present embodiment. The imaging data generated by the imaging device 4 is sent to the data processing circuit 5. The display image data generated by the data processing circuit 5 based on the imaging data is sent to the first driver 11, and each pixel of the display device 3 is driven based on the signal generated by the first driver 11. As a result, an image based on the display image data is displayed on the display unit 3a of the display device 3. The above-mentioned first detector 6 is connected to the data processing circuit 5. The second detector 8 is connected to the control circuit 7 and the data processing circuit 5.

  As shown in FIG. 12, the awning device 1 of the present embodiment further includes a third detector 13. The third detector 13 is connected to the control circuit 7. The control circuit 7 is connected to the switch 9 and the display device 3. The switch 9 is connected between the power supply line V and the sunshade member 2 (light control glass plate 20) in the example of FIG. FIG. 12 is only an example of the configuration of the awning device 1 in the present embodiment, and the awning device 1 does not necessarily need to include all the components shown in FIG. 12 and is shown in FIG. It may further include missing components. Further, the internal configuration of the data processing circuit 5 is not limited to the configuration shown in FIG. Hereinafter, the third detector 13, the control circuit 7, and the data processing circuit 5 will be sequentially described.

  The third detector 13 detects the intensity of incident light falling on the light control glass plate 20. Examples of the third detector 13 include a photodiode, a phototransistor, and an illuminance sensor. However, the third detector 13 is not limited to these as long as it can output a detection result according to the light intensity. The third detector 13 is preferably arranged around the light control glass plate 20. The third detector 13 can be arranged at any position as long as it can be irradiated with the sunlight irradiating the light control glass plate 20.

  The control circuit 7 controls the switch 9 to switch the light transmittance of the light control glass plate 20 based on the detection result of the third detector 13 in addition to the control of the on / off state of the display device 3 described above. . The control circuit 7 compares the detection result of the third detector 13 with a predetermined threshold, for example, and the detection result of the third detector 13 is illuminated with incident light having an intensity equal to or higher than the predetermined threshold. If so, the switch 9 is controlled to open. The application of the voltage from the power supply line V to the light control glass plate 20 is stopped. As a result, the light transmittance of the light control glass plate 20 is reduced, and sunlight is blocked by the light control glass plate 20. As described above, when the switch 9 can change the magnitude of the voltage input to the light control glass plate 20 stepwise or continuously, the control circuit 7 can also switch the state of the switch 9 in multiple steps. preferable. The control circuit 7 can be configured by, for example, a combination of a comparator and some gate elements. Further, the control circuit 7 may be constituted by a microcomputer or a part of a gate array, and may be included in the data processing circuit 5.

  The data processing circuit 5 is a circuit block having a unique function, that is, a data generation circuit 50, an angle identification circuit 51, a data correction circuit 52, a display target data selection circuit 53, a memory circuit 54, a comparison circuit 55, and a display image. An emphasis circuit 56 is included. The display target data selection circuit 53 includes a memory circuit 53a. These circuit blocks may partially or entirely share the same circuit element. The data processing circuit 5 can be formed by an arbitrary signal processing semiconductor device such as a microcomputer, an ASIC, or an FPGA and its peripheral circuits. A microcomputer or the like operates according to software that defines a predetermined processing procedure. Each circuit block in the data processing circuit 5 may be individually formed using a semiconductor integrated circuit device or an individual semiconductor element.

  The data generation circuit 50 is a circuit block having a basic function of the data processing circuit 5, and generates display image data including information on the light emission intensity and light emission timing for each pixel of the display device 3 based on the imaging data. The data generation circuit 50 may be, for example, a so-called timing controller and its peripheral circuits that are used for generating a drive signal for an organic EL display panel or the like and operate according to software that defines a predetermined processing procedure.

  The functions of the angle identification circuit 51 and the data correction circuit 52 will be described below with reference to FIGS. 13A, 13B, 14A, and 14B. The angle discriminating circuit 51 is configured to direct an operator (in the present embodiment, the driver M ) Is identified. For example, the angle identification circuit 51 determines the angle of the line of sight I of the driver M with respect to the first surface 2a of the awning member 2 on the assumption that the awning member 2 is positioned at a preset use position (reference use position). θA may be identified. In this case, when the awning member 2 is positioned at the reference use position, it is preferable to provide a means for notifying the operator of the position. For example, a concave portion such as a notch may be provided on an engagement surface of the support member F1 with the engagement member F2. When the sunshade member 2 is at the reference use position on the engagement surface of the engagement member F2, a minute projection that does not hinder the movement of the sunshade member 2 may be provided at a position opposite to the concave portion. . The reference use position may be any position in the movement range of the sunshade member 2, for example, the reference use position is a position where the first surface 2a of the sunshade member 2 is positioned along the up-down direction of the automobile C. .

  The positional relationship between the awning member 2 at the reference use position and the two eye detection cameras 6a and 6b (see FIG. 7), which are components of the first detector 6 and are at known positions, can be specified in advance. In addition, as described above, the first detector 6 can detect the position of the driver M's eye with respect to the eye detection cameras 6a and 6b. Therefore, the position of the driver M's eye with respect to the first surface 2a of the sunshade member 2 assumed to be at the reference use position is also specified. As a result, it is possible to specify the direction of the line of sight I of the driver M who looks at the awning member 2 assumed to be at the reference use position. That is, based on the detection result of the first detector 6, the angle θA of the line of sight I of the driver M directed to the awning member 2 with respect to the first surface 2a of the awning member 2 assumed to be at the reference use position is identified. can do.

  Further, the angle identification circuit 51 identifies the angle of the line of sight I of the driver M based on the detection result of the first detector 6 and the detection result of the second detector 8 (see FIGS. 8A and 8B). May be. As described above, the second detector 8 can detect the position of the awning member 2 in the rotation direction. Therefore, the positional relationship between the sunshade member 2 currently positioned at the specific use position and the two eye detection cameras 8a and 8b at the known positions can also be specified from the detection result of the second detector 8. Therefore, the angle θA of the line of sight I of the driver M directed to the awning member 2 with respect to the first surface 2a of the awning member 2 that can be used at an arbitrary position can be specified more accurately. The angle identification circuit 51 operates in accordance with, for example, software including a procedure for specifying the angle θA as described above.

  The data correction circuit 52 corrects the imaging data based on a difference Δθ of the angle θA with respect to a predetermined reference angle (hereinafter, the description will be made with the reference angle being 90 degrees). As shown in FIG. 13A, when the angle θA is 90 degrees (Δθ is zero, the first surface 2a of the awning member 2 is orthogonal to the line of sight I), as illustrated in the left-side diagram in FIG. 13A. The image of the traffic light S1 displayed on the display device 3 is almost properly captured by the driver M's eyes. However, as shown in FIG. 13B, when the angle θA is an angle other than 90 degrees, the image of the traffic light S1 has a vertically distorted and distorted shape as shown in the left diagram in FIG. 13B. It is caught by the eyes of the driver M. The data correction circuit 52 allows the image displayed on the display device 3 to be properly captured by the driver M even in the state shown in FIG. 13B based on the difference Δθ between the predetermined reference angle and the angle θA. Thus, the imaging data is corrected.

  For example, the data correction circuit 52 replaces the data of the pixel two pixels above the center pixel in the up-down direction of the area to be displayed on the display device 3 of the image data with the data of the pixel one pixel above the center pixel. The data of the pixel three and four above the center pixel is replaced with the data of the pixel two above the center pixel (the data before being replaced as described above). The data correction circuit 52 performs such data correction on the imaging data corresponding to the area to be displayed on the display device 3 in both the up and down directions. By performing such correction, the image displayed on the display device 3 can be enlarged twice in the vertical direction. The magnification for extending the display image in the vertical direction is selected based on a difference Δθ of the angle θA with respect to a predetermined reference angle. For example, the display image is extended in the vertical direction at a larger magnification as the angle θA of the line of sight I of the driver M with respect to the first surface 2a of the awning member 2 increases from 90 degrees.

  The data processing circuit 5 corrects the difference between the predetermined reference angle and the angle of the line of sight I with respect to the first surface 2a of the sunshade member 2 by the data correction circuit 52 so as to display the display image on the display device 3. Then, display image data is generated based on the captured image data. By doing so, for example, as shown in FIG. 14A, an image elongated in the vertical direction is displayed on the actual display device 3. However, as shown in FIG. 14B, the driver perceives the image as an image having a shape close to the shape of the original display object (the traffic light S1 in FIG. 14B). It is considered that the driver can easily recognize the display object. The data correction circuit 52 may correct the display image data generated by the data generation circuit 50.

  Next, the function of the display target data selection circuit 53 (see FIG. 12) will be described with reference to FIGS.

  The display device 3 may display only the view of the blind spot generated when the light transmittance of the light control glass plate 20 is low in the field of view of the operator (the driver M in the present embodiment) of the sunshade member 2. It is considered preferable that an image is reflected on the eyes of the driver M without discomfort. As shown in FIG. 15, if the reference position PR of the awning member 2 and the reference position PI of the eye of the driver M are determined, the imaging device 4 (see FIG. 4) based on these and the size of the awning member 2. Of the imaging area (reference blind spot BR) is determined. Note that the imaging area is fixedly determined by the position and characteristics of the imaging device 4. If the positions of the awning member 2 and the eyes of the driver M are fixed, the area (reference display target area) corresponding to the reference blind spot BR in the image data is set as the display target area, so that the blind spot is always displayed. Only the scene is displayed on the display device 3. However, the shade member 2 and the eyes of the driver M move, whereby the blind spot portion fluctuates. Therefore, it is preferable to change the display target area according to the fluctuation of the blind spot portion. For such display, the display target data selection circuit 53 determines a blind spot in the field of view of the operator of the sunshade member 2 that is blocked by the sunshade member 2 whose light transmittance is reduced, and that the image data is displayed. Of the display target data corresponding to the blind spot portion.

  The first detector 6 and the second detector 8 are connected to the display target data selection circuit 53 (see FIG. 12). Therefore, information on the position of the driver M's eye and the position of the sunshade member 2 is input to the display target data selection circuit 53. The display target data selection circuit 53 includes a memory circuit 53a (see FIG. 12). In the memory circuit 53a, a blind spot caused by being blocked by the light control glass plate 20 whose light transmittance is reduced is provided for each position and / or angle of the sunshade member 2 and each position of the eyes of the driver M. Information on the difference between BA and the reference blind spot BR is stored. FIG. 15 shows, as an example, a blind spot portion BA when the driver M's eye is at the position PA. For example, the memory circuit 53a stores an amount of movement in the vertical and horizontal directions with respect to the reference blind spot BR, an enlargement ratio or a reduction ratio, which is necessary to obtain the actual position of the blind spot BA. The display target data selection circuit 53 performs an actual operation based on the information on the position of the driver M's eye and the position of the awning member 2 from the first and second detectors 6 and 8 and the contents stored in the memory circuit 53a. The position of the blind spot BA is specified by numerical calculation or the like. Then, the display target data selection circuit 53 selects the data of the area corresponding to the actual blind spot portion BA of the imaging data as the display target data to be displayed.

  Note that the display target data selection circuit 53 does not use the detection result of the second detector 8 and assumes that the awning member 2 is positioned at the “reference use position” as described above, and performs the first detection. The display target data may be selected based on the detection result of the device 6.

  Then, the data generation circuit 50 generates display image data based on the selected display target data in order to display the actual scene of the blind spot BA on the display device 3. As a result, as shown in FIG. 16, the actual display changed (upwardly shifted in the example of FIG. 16) with respect to the reference display target region DR corresponding to the reference blind spot portion in the imaging region 41. An image of the display target area DA to be displayed is displayed on the display device 3. It is possible to display on the display device 3 an image with less discomfort compared to a scene seen through the windshield.

  Note that the display target data selection circuit 53 may have a function of canceling a slight fluctuation of the image display caused by the relative slight movement of the driver M with respect to the vehicle body. For example, when the information from the first detector 6 (see FIG. 7) frequently fluctuates above a predetermined level, the display target data selection circuit 53 lengthens the period for sampling the information from the first detector 6. May be configured. Further, the display target data selection circuit 53 may be configured not to newly start the operation of selecting the display target data when the change in the eye position of the driver M does not satisfy the predetermined condition. Further, a low-pass filter may be provided in an input portion of the display target data selection circuit 53 that receives information from the first detector 6.

  Next, the functions of the display image enhancement circuit 56, the comparison circuit 55, and the memory circuit 54 (see FIG. 12) will be described with reference to FIGS. 17, 18A and 18B.

  The memory circuit 54 stores reference data relating to appearance characteristics of a predetermined object that can be imaged by the imaging device 4 (see FIG. 4). FIG. 17 conceptually illustrates an example of the reference data 54a and 54b stored in the memory circuit 54 as an image that can be reconstructed by the reference data 54a and 54b. That is, as shown in FIG. 17, in the memory circuit 54, external features of an object that may be photographed by the imaging device 4, such as the traffic light S1 and the regulation sign S2, are stored as data. For example, the memory circuit 54 stores image data generated by actually photographing the traffic light S <b> 1 and the like with the imaging device 4. Alternatively, the shape of the traffic light S1 or the like may be modeled using unit elements such as minute triangles, and the reference data 54a and 54b may be formed by the vertex coordinates of each unit element. The reference data can be formed in any manner. Although not particularly limited, the memory circuit 54 is configured by an arbitrary semiconductor storage device such as an SRAM or a PROM. The same storage device may be shared with the memory circuit 53a of the display target data selection circuit 53 described above.

  The comparison circuit 55 compares the imaging data generated by the imaging device 4 with the reference data 54a and 54b stored in the memory circuit 54. The comparison circuit 55 may, for example, reconstruct the image data and the reference data 54a and 54b into images and compare them by a pattern recognition technique. Further, if the data formats of the imaging data and the reference data 54a and 54b are the same, the actual data may be sequentially compared in bit or byte units. The method of comparison performed by the comparison circuit 55 is not particularly limited. The comparison circuit 55 detects the approximate image data by comparing the image data with the reference data 54a and 54b, when there is approximate image data that is closer to one of the reference data 54a and 54b enough to satisfy a predetermined criterion. I do.

  When the approximate image data is detected as a result of the comparison by the comparison circuit 55, the display image enhancement circuit 56 enhances the display image of the predetermined object displayed based on the approximate image data more than the other display images. To display on the display device 3. Specifically, the display image enhancement circuit 56 processes the display image data generated based on the approximate imaging data among the display image data generated by the data generation circuit 50 (see FIG. 12).

  For example, as shown on the left side of the display device 3 in FIG. 18A, the display image enhancement circuit 56 processes data of pixels around the image S11 of the object to be enhanced (traffic light), and makes the image S11 stand out. Is displayed around the frame S12. In addition, as shown on the right side of the display device 3 in FIG. 18A, data of pixels around the image S21 of the emphasis target (regulation mark) may be processed, and an enlarged image S22 of the image S21 may be displayed. Further, as shown in FIG. 18B, the display image enhancement circuit 56 emphasizes a specific color (for example, red or blue) in the display images S11 and S21 of the enhancement target by using the luminance of the sub-pixel of the specific color. May be increased.

  When the approximate image data is detected, the display image enhancement circuit 56 causes the display device 3 to display an image to be displayed based on the image data including the approximate image data as a still image in a predetermined time frame. May be. For example, display image data generated by the data generation circuit 50 is recorded in a video memory (not shown) or the like as needed. When the approximate image data is detected, the display image data sent to the display device 3 is recorded in a video memory (not shown) from the display image data generated as needed by the data generation circuit 50 for a predetermined time. May be switched to the displayed image data. The display image enhancement circuit 56 can enhance a specific image by any method without being limited to these methods. Such emphasis can enhance the visibility of an object that needs to be recognized by the driver M.

  In the above description, the awning device 1 of the present embodiment has been described by taking as an example a case where the awning device is used for a windshield of an automobile. However, the awning device 1 according to the present embodiment is not limited to the windshield, and may include a rear glass of an automobile, a window glass of any vehicle, and a window of any other vehicle and any building, as described above. It should be understood that it can be adapted to glass.

<Summary>
The awning device according to the first aspect of the present invention has a plate-shaped awning member formed using a light control glass plate capable of changing light transmittance, and a surface facing an operator when the awning member is used in the awning member. A display device that is disposed with the display unit facing the operator, is capable of transmitting light, an imaging device that captures an area of the surface facing the opposite surface to generate imaging data, and an imaging device that is generated by the imaging device. A data processing circuit that generates display image data to be displayed on the display unit when the sunshade member is used based on data, and a switch that switches light transmittance of the light control glass plate. And

  According to the configuration of the first aspect of the present invention, it is possible to display an image of a sight including an area hidden by the awning member when the awning device is used, to an operator of the awning member, and furthermore, to place the awning member in the use position when not in use. It is possible to provide a awning device that does not easily generate a blind spot.

  The awning device according to a second aspect of the present invention, in the first aspect, further includes a first detector that detects a position of an eye of an operator of the awning member, wherein the data processing circuit includes the first detector. Based on the detection result, an angle identification circuit that identifies an angle of the operator's line of sight directed to the sunshade member with respect to the surface, and corrects the imaging data based on a difference between the angle of the line of sight with respect to a predetermined reference angle. And a data correction circuit, wherein the data processing circuit is corrected by the data correction circuit to display a display image corrected for a difference between the line of sight angle with respect to the predetermined reference angle on the display device. The display image data may be generated based on the captured image data.

  According to the configuration of the second aspect of the present invention, an image that is easy for the operator to recognize can be displayed on the display device according to the position of the eye of the operator.

  In the awning device according to aspect 3 of the present invention, in the above-described aspect 2, the data processing circuit determines a blind spot that is blocked by the awning member in a field of view of an operator of the awning member, and includes: Further comprising a display target data selection circuit for selecting display target data corresponding to the blind spot portion, wherein the data processing circuit is configured to display the scene of the blind spot portion on the display device based on the display target data. Display image data may be generated.

  According to the configuration of the third aspect of the present invention, even when the blind spot portion of the sunshade member changes with the movement of the operator, it is possible to display an image with less discomfort for the operator on the display device.

  The awning device according to an aspect 4 of the present invention, in the above aspect 2 or 3, further comprises a second detector for detecting a position of the awning member, wherein the angle identification circuit detects a detection result of the first detector. The angle of the line of sight may be identified based on a detection result of the second detector.

  According to the configuration of the fourth aspect of the present invention, an image corrected or selected based on the use position of the awning member can be displayed on the display device.

  The awning device according to a fifth aspect of the present invention, in any one of the first to fourth aspects, further includes a control circuit that controls an on / off state of the display device based on a light transmittance of the light control glass plate. Is also good.

  According to the configuration of the fifth aspect of the present invention, the operator can reduce the number of operations performed by the operator on the sunshade member, which is necessary for displaying the scene hidden by the light control glass plate on the display device.

  The awning device according to an aspect 6 of the present invention, in the aspect 4, wherein the display device is turned off when the light transmittance of the light control glass plate is equal to or greater than a predetermined reference value. A control circuit that controls an on / off state of the display device based on a detection result of the second detector when the light transmittance of the light control glass plate falls below the predetermined reference value. May be.

  According to the configuration of the sixth aspect of the present invention, the operator of the awning member operates the awning member and / or causes the display device to display an image only by changing the light transmittance of the light control glass plate. , The display can be stopped.

  The awning device according to an aspect 7 of the present invention, in the above aspect 5 or 6, further includes a third detector that detects the intensity of incident light incident on the light control glass plate, and the control circuit further includes: The switch may be controlled based on a detection result of the third detector to switch a light transmittance of the light control glass plate.

  According to the configuration of the seventh aspect of the present invention, the light-shielding property of the sunshade member can be switched according to the intensity of light incident on a room or the like.

  In the awning device according to an eighth aspect of the present invention, in any one of the first to seventh aspects, the data processing circuit stores reference data relating to an external characteristic of a predetermined object; A comparison circuit that compares the reference data with the display data, a display image enhancement circuit that processes the display image data to enhance a display image of the predetermined object displayed on the display device more than other display images, May be further provided.

  According to the configuration of the eighth aspect of the present invention, it is possible to increase the visibility of an object that needs to be recognized by the operator, and to reduce an operator's oversight of such an object.

  The awning device according to a ninth aspect of the present invention is the awning device according to any one of the first to eighth aspects, which is provided separately from the display device, and outputs a signal used for driving a pixel of the display device based on the display image data. A first driver for outputting may be further provided.

  According to the configuration of the ninth aspect of the present invention, it is possible to appropriately drive the pixels of the display device based on the display image data.

  In the awning device according to an aspect 10 of the present invention, in the ninth aspect, the display device includes a substantially rectangular display screen, and the first driver extends along a longitudinal direction of the display screen at an edge of the awning member. The awning member may be disposed on the first edge to be turned upward when the awning member is used.

  According to the configuration of aspect 10 of the present invention, the blind spot that can be generated by the first driver can be limited to the upper edge of the window, and the wiring length between the first driver and the pixel of the display device can be reduced. Can be.

  An awning device according to an eleventh aspect of the present invention is the awning device according to the ninth aspect, further comprising a flexible film including a wiring connecting the first driver and the display device, wherein the first driver includes the awning member The display device includes a substantially rectangular display screen, and the flexible film is connected to a portion of the edge of the display device along a longitudinal direction of the display screen. Good.

  According to the configuration of the eleventh aspect of the present invention, it is possible to reliably prevent the blind spot from being generated by the first driver, and to maintain the connection between the first driver and the display device normally even when the sunshade member rotates. And the wiring length between the first driver and the pixel of the display device can be shortened.

  In the awning device according to aspect 12 of the present invention, in the above-mentioned aspect 11, the flexible film should be directed upward along the longitudinal direction of the display screen of the awning member when the awning member is used. One edge may be connected to the display device.

  According to the configuration of the twelfth aspect of the present invention, the flexible film can be arranged at the upper edge of the window.

  In the awning device according to aspect 13 of the present invention, in the above aspect 11 or 12, the flexible film may be covered with a cover member that can be bent at at least one place.

  According to the configuration of the thirteenth aspect of the present invention, it is possible to enhance the decorativeness of the peripheral portion of the sunshade member, and it is possible to prevent short-circuit failure due to accumulation of dust or the like on the flexible film or the wiring or condensation. .

  In the awning device according to an aspect 14 of the present invention, in the aspect 13, the display device further includes a second driver that drives the pixel based on an output signal of the first driver, and the second driver includes the cover that covers the cover. It may be covered by a member.

  According to the configuration of the fourteenth aspect of the present invention, it is possible to prevent a short-circuit failure between the wiring and the transistor constituting the second driver.

  In the awning device according to aspect 15 of the present invention, in the ninth embodiment, the display device includes a substantially rectangular display screen, and the first driver is configured to extend along a short side direction of the display screen at an edge of the awning member. May be arranged at the second edge portion.

  According to the configuration of the fifteenth aspect of the present invention, the mechanical stress that can be applied to the connection portion between the first driver and the wiring with the movement of the sunshade member may be reduced.

  In the awning device according to aspect 16 of the present invention, in the above aspect 15, the second edge portion, when the awning member is used for a windshield of an automobile, along a vertical direction of the automobile, and The edge may be located closer to the door than the center in the vehicle width direction.

  According to the configuration of the sixteenth aspect of the present invention, even when the blind spot is generated by the first driver 11, the visual unnaturalness given to the driver of the automobile or the like can be reduced.

  In the awning device according to aspect 17 of the present invention, in any of the above aspects 1 to 16, the display device may be an organic EL display panel.

  According to the configuration of the seventeenth aspect of the present invention, a display device that can transmit light can be easily configured.

  In the awning device according to Aspect 18 of the present invention, in any of Aspects 1 to 17, the imaging device includes a lens having a surface on which a coating layer that reduces light reflection by adjusting a refractive index is formed. It may be.

  According to the configuration of the eighteenth aspect of the present invention, an image with less flare and ghost can be displayed on the display device even when the imaging device performs imaging under backlight.

  In the awning according to aspect 19 of the present invention, in any of aspects 1 to 18, the light control glass plate is sealed between two conductive films that transmit light and the two conductive films. Liquid crystal molecules.

  According to the configuration of the nineteenth aspect of the present invention, the light transmittance in the light control glass plate can be easily switched by controlling the voltage applied to the light control glass plate.

1 Sunshade device 2 Sunshade member 2a Surface (first surface)
2b Opposite side (second side)
2e1 First edge 2e2 Second edge 20 Dimming glass plate 21a, 21b Glass plate 22 Liquid crystal sheet 22a Liquid crystal molecule 22b, 22c Conductive film 3 Display device 3a Display unit 30 Organic EL display panel 4 Imaging device 4a Cover layer 41 Imaging Area 5 Data processing circuit 50 Data generation circuit 51 Angle identification circuit 52 Data correction circuit 53 Display target data selection circuit 53a Memory circuit 54 Memory circuits 54a, 54b Reference data 6 First detector 6a, 6b Eye detection camera 7 Control circuit 8 Second detector 9 Switch 11 First driver 11a Wiring 11d Flexible film 11e Cover member 12 Second driver 13 Third detector B Blind spot BA Actual blind spot BR Reference blind spot C Car DR Reference display target area DA Actual Display target area F1 Support member F2 Engaging member M Driver (operator)
P0 Non-use position P1 Use position

Claims (1)

Plate-shaped awning member formed using a light control glass plate capable of changing light transmittance,
An organic EL display panel capable of transmitting light, which is disposed on a surface facing an operator during use of the sunshade member;
An imaging device that generates an image data by imaging an area where the opposite surface of the surface faces,
A switch for switching the light transmittance of the light control glass plate,
The organic EL display panel displays an image based on the imaging data,
The organic EL display panel includes a plurality of sub-pixels each including a cathode and an anode,
The cathode and the anode are spaced apart from each other by a length different from the wavelength of light emitted from each of the plurality of sub-pixels so that the microcavity effect is not used in each of the plurality of sub-pixels. apparatus.

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