JP6390286B2 - Display device - Google Patents

Description

  The present invention relates to a display device including a liquid crystal panel.

  Some conventional display devices change display content by moving an entity such as a pointer and pointing to a scale. On the other hand, the display devices described in Patent Documents 1 and 2 easily realize various changes in display contents by displaying on the liquid crystal panel an image imitating the entity.

  However, a liquid crystal panel has a physical limit in making a display image visually recognized three-dimensionally, and has a drawback in that it has a flat appearance as compared with a display device using an entity. With respect to this drawback, in the display devices described in Patent Documents 1 and 2, a decoration ring as an entity is arranged on the front side in the viewing direction with respect to the liquid crystal panel. Since the decorative ring is visually recognized three-dimensionally, it is possible to give a sense of depth to the planar appearance of the liquid crystal panel. Therefore, the whole display device can be made to look three-dimensional by the combination of the liquid crystal panel and the decoration ring.

Japanese Patent No. 5180150 Japanese Patent No. 4787102

  However, if a decorative ring (substance) is placed on the front side of the liquid crystal panel as described above, a portion of the image on the liquid crystal panel is blocked by the entity and cannot be seen, so the entire display surface of the liquid crystal panel can be used effectively. Can not.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a display device that can effectively use the entire display surface of the liquid crystal panel while combining the liquid crystal panel with an entity to give a sense of depth. It is to provide.

  The invention disclosed herein employs the following technical means to achieve the above object. Note that the reference numerals in parentheses described in the claims and in this section indicate the correspondence with the specific means described in the embodiments described later, and do not limit the technical scope of the invention. .

One of the disclosed inventions is a liquid crystal panel (20) that forms a display surface (20a) on which an image is displayed, a backlight (30) that emits light from the back side to the liquid crystal panel, and a liquid crystal panel and a backlight. And an entity (420, 440, 450) that is visually recognized through the liquid crystal panel, an actuator (424) that moves the entity between the liquid crystal panel and the backlight, and a decorative member of the display surface The control device (600) for controlling the liquid crystal panel so that the light transmittance is higher in the specific pixel region (G10), which is the pixel region of the portion located on the back side, than in the other pixel region (G20) When provided with the actuator, characterized by Rukoto is retracted at least a portion of the physical object as a position deviated from the display surface of the liquid crystal panel.
Another aspect of the disclosed invention is a liquid crystal panel (20) that forms a display surface (20a) on which an image is displayed, a backlight (30) that emits light from the back side to the liquid crystal panel, and a liquid crystal An entity (420, 440, 450) disposed between the panel and the backlight and viewed through the liquid crystal panel; an actuator (424) for moving the entity between the liquid crystal panel and the backlight; Among the specific pixel regions (G10, G50, G60, G70, G71), which are the pixel regions of the portion where the entity is located on the back side, the light transmittance is higher than that of the other pixel regions (G20). , A control device (600) for controlling the liquid crystal panel, and the entity combines a plurality of divided pieces (441, 442, 443, 444, 451, 452, 453, 454) Is formed, the actuator includes a state of being separated entities product into a plurality of divided pieces, and a state of being combined a plurality of divided pieces, and switches.
Another aspect of the disclosed invention is a liquid crystal panel (20) that forms a display surface (20a) on which an image is displayed, a backlight (30) that emits light from the back side to the liquid crystal panel, and a liquid crystal An entity (420, 440, 450) disposed between the panel and the backlight and viewed through the liquid crystal panel; an actuator (424) for moving the entity between the liquid crystal panel and the backlight; Among the specific pixel regions (G10, G50, G60, G70, G71), which are the pixel regions of the portion where the entity is located on the back side, the light transmittance is higher than that of the other pixel regions (G20). And a control device (600) for controlling the liquid crystal panel, and an entity display mode for increasing the transmittance of the specific pixel region to such an extent that the entity can be visually recognized, and to a level at which the entity cannot be visually recognized. Switching means (61a) for switching to the entity non-display mode, and in the entity non-display mode, the actuator is in a position where a part of the entity deviates from the position facing the display surface of the liquid crystal panel. The object is moved so that the other part of the object is arranged at a position facing the display surface of the liquid crystal panel.

According to these inventions, avoids real object to be moved by the actuator, since it is disposed between the liquid crystal panel and a backlight, a part of the image by the liquid crystal panel can not be seen is blocked by the entity thereof it can. Therefore, the entire display surface of the liquid crystal panel can be effectively used while providing a sense of depth by combining a movable entity with the liquid crystal panel.

  Further, according to the above invention, the transmittance of the specific pixel region in the portion where the entity is located on the back side is higher than that of the other pixel regions, so that the entity is easily seen through the specific pixel region. On the other hand, in other pixel areas, objects existing on the back side of the liquid crystal panel are hardly visually recognized. For this reason, an entity viewed through the specific pixel region becomes conspicuous, and it is promoted that a line of sight is attracted to the entity. That is, the attractiveness to the movable entity can be improved.

It is a front view of the display apparatus which concerns on 1st Embodiment of this invention, Comprising: The figure which shows the display content by an entity display mode. Sectional drawing of FIG. FIG. 3 is an exploded perspective view of FIG. 2. The figure which shows the state which the actuator shown in FIG. 3 moved the entity to the position facing a liquid crystal panel. The figure which shows the state which the actuator shown in FIG. 3 moved the substance to the position remove | deviated from the position which opposes a liquid crystal panel. The block diagram which shows the control object by the microcomputer of FIG. The flowchart which shows the procedure of the display control by the microcomputer of FIG. It is a front view of the display apparatus which concerns on 2nd Embodiment of this invention, Comprising: The figure which shows the display content by an entity display mode. The figure which shows the state which divided and moved the entity in 2nd Embodiment. The figure explaining the state to which an entity moves in 3rd Embodiment.

  Hereinafter, a plurality of modes for carrying out the invention will be described with reference to the drawings. In each embodiment, portions corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals and redundant description may be omitted. In each embodiment, when only a part of the configuration is described, the other configurations described above can be applied to other portions of the configuration.

(First embodiment)
A display device D shown in FIG. 1 is a vehicle display device assembled to an instrument panel of a vehicle. The display device D displays changes in various physical quantities representing the state of the vehicle, such as the traveling speed of the vehicle and the remaining power of the vehicle-mounted battery, and displays that effect when various abnormalities occur. Is displayed.

  As shown in FIG. 2, the display device D mainly includes a case 10, a liquid crystal panel 20, a backlight 30, a decoration ring 420, an actuator (electric motor 424), and a circuit board 60. The case 10 is made of a resin having a light shielding property, and accommodates and holds the liquid crystal panel 20, the backlight 30, the circuit board 60, and the like.

  The liquid crystal panel 20 is a TFT liquid crystal panel configured to include a liquid crystal layer in which liquid crystal is held, a pair of electrodes disposed on both sides of the liquid crystal layer, a color filter substrate, and a pair of polarizing films. The electrode is a matrix electrode in which a row electrode and a column electrode are combined. The electrode is composed of a transparent electrode provided for each pixel, and a voltage applied to the electrode is controlled by a thin film transistor. The color filter substrate has a red filter, a green filter, and a blue filter, and each filter is arranged for each pixel (each electrode). In addition, a thin film transistor (TFT) (not shown) that turns on and off each pixel is provided. The polarizing film is a filter that transmits light that vibrates in a predetermined direction and restricts the vibration direction of the light to a predetermined direction. The pair of polarizing films are arranged so that the vibration direction is shifted by 90 degrees.

  The backlight 30 includes a light guide plate 31, a reflection plate 32, a diffusion plate 33, and a light source 34 (see FIG. 3). The light source 34 employs a light emitting diode to emit white light, and a plurality of light sources 34 are arranged at positions facing the side surfaces of the light guide plate 31. The light emitted from the light source 34 enters the light guide plate 31 from the side surface, travels through the light guide plate 31 while being reflected by the reflection plate 32, and exits from the front side of the light guide plate 31 (upper side in FIG. 2). The light emitted from the light guide plate 31 is transmitted while being diffusely reflected by the diffusion plate 33. As a result, the entire diffuser plate 33 emits surface light, and light that is uniform and less uneven than the entire surface of the liquid crystal panel 20 is emitted from the backlight 30 to the liquid crystal panel 20.

  The reflection plate 32 is disposed in close contact with the back side of the light guide plate 31, whereas the diffusion plate 33 is disposed with a predetermined gap on the front side of the light guide plate 31. It is not necessary to leave this gap. The liquid crystal panel 20 is arranged with a predetermined gap 40a on the front side of the diffusion plate 33, and a decoration ring 420 as an entity is arranged in the gap 40a.

  As shown in FIG. 3, the decoration ring 420 has a ring shape (annular) formed of a resin having translucency, and the decoration ring 420 according to the present embodiment has an annular shape. The decoration ring 420 has a shape protruding from the diffusion plate 33 side toward the liquid crystal panel 20 side. A plurality of grooves are formed on the front side surface of the decoration ring 420, and these grooves are streaks extending in the radial direction of the decoration ring 420 and serve as a scale 421 pointed to by the pointer image G14. Function.

  The decoration ring 420 is provided with a light guide portion 422, and the decoration ring 420 and the light guide portion 422 are integrally formed of resin. A light source 423 using a light emitting diode is attached to a side surface of the light guide unit 422. The light emitted from the light source 423 enters from the side surface of the light guide 422, travels through the light guide 422 and the decoration ring 420, is reflected by the grooves that form the scale 421, and is reflected on the decoration ring 420. The light is emitted from the front side (upper side in FIG. 2). The light reflected by the scale 421 passes through a later-described specific pixel region G10 of the liquid crystal panel 20 and is visually recognized by the user.

  Accordingly, when the light source 423 is turned on, the portion of the scale 421 appears to shine. The light source 423 is provided with three types of red, green, and blue, and the microcomputer 61 controls the luminance of each light source 423 so that the color of light emitted from the decoration ring 420 can be adjusted. That is, the scale 421 can be visually recognized with a desired color.

  The liquid crystal panel 20 has a flexible wiring board 21, and a terminal 21 a formed at the tip of the flexible wiring board 21 is connected to a circuit board 60 on which a microcomputer (microcomputer 61) is mounted. The microcomputer 61 includes a central processing unit, a memory, and the like, and executes various types of arithmetic processing according to a program stored in advance. An image signal output from the circuit board 60 to the liquid crystal panel 20 is transmitted to the electrodes of the liquid crystal panel 20 via the flexible wiring board 21. In short, the content of the image displayed on the display surface 20 a of the liquid crystal panel 20 is controlled by the microcomputer 61.

  The circuit board 60 acquires various types of information from an electronic control device provided outside the display device D among the electronic control devices mounted on the vehicle, and the display content of the liquid crystal panel 20 and the decoration ring 420 based on the acquired information. Control the rotational position of Specific examples of the information include information representing changes in various physical quantities representing the state of the vehicle, such as the traveling speed of the vehicle and the remaining power of the in-vehicle battery, and information indicating that various abnormalities have occurred.

  As shown in FIG. 2, the case 10 includes a facing plate 11 located on the front side of the liquid crystal panel 20, and the facing plate 11 has an opening 11 a. As a result, a portion of the display surface 20a of the liquid crystal panel 20 located inside the opening 11a becomes a visible region, and this visible region is specified by being partitioned by the turn-back plate 11. Further, the outer edge portion P <b> 1 (see FIG. 2) of the liquid crystal panel 20 is covered with the facing plate 11. A cover 12 that covers the facing plate 11 from the front side is attached to the case 10. The cover 12 is made of a resin having translucency.

  When the light source 34 of the backlight 30 is turned on, the light emitted from the front surface (the light emitting surface 33b) of the diffusion plate 33 is transmitted through the liquid crystal panel 20 and the front side of the display device D through the opening 11a and the cover 12. Is injected into. Thereby, the liquid crystal panel 20 is transmitted and illuminated, and an image displayed on the display surface 20a is visually recognized by the user. Specifically, according to the voltage applied to the electrode arranged for each pixel of the liquid crystal panel 20, the light transmittance (light transmittance) for the corresponding pixel changes.

  For example, if the applied voltage is controlled so that the transmittance is maximized for all of the electrodes corresponding to the red filter, the green filter, and the blue filter, the luminance of light transmitted through each filter is maximized. As a result, the corresponding pixel is visually recognized as white. That is, it is visually recognized by the luminescent color of the diffusion plate 33. On the other hand, if the applied voltage is controlled so that the transmittance is minimized for all the electrodes corresponding to each filter, the luminance of the light transmitted through each filter is minimized. As a result, the corresponding pixel is visually recognized as black.

  Of the display surface 20a, in the region (specific pixel region G10) having a high transmittance as described above, an object located on the back side of the region, that is, the decorative ring 420 or the diffusion plate 33, causes the liquid crystal panel 20 to move. Visible through the watermark. Specifically, out of the light emitted from the backlight 30, the light emitted from the inner peripheral edge 420 a of the decoration ring 420 is transmitted to the specific pixel region G <b> 10 and visually recognized by the user. Further, the light emitted from the light source 423 and reflected by the scale 421 is visible through the specific pixel region G10. Further, light emitted from a portion of the backlight 30 located on the inner peripheral side of the decoration ring 420 is transmitted to the specific pixel region G10 and visually recognized by the user as a background image.

  On the other hand, in an area (the other pixel area G20) in which the transmittance is controlled to be lower than that of the specific pixel area G10 on the display surface 20a, an object located on the back side of the area cannot be visually recognized. In other words, the light traveling from the decoration ring 420, which is an entity, to the liquid crystal panel 20 is not visually recognized by the user because it does not pass through the other pixel region G20. The hatched lines shown in FIGS. 1, 3, 4 and 5 do not mean cross-sectional hatching, but mean the other pixel region G20 or the range of the second pixel region G40.

  The higher the transmittance, the greater the degree of light transmitted from the entity through the liquid crystal panel 20, and the inner peripheral edge 420a and the scale 421 of the decorative ring 420 are clearly visible. On the other hand, the lower the transmittance is, the less light is transmitted from the inner peripheral edge 420a and the scale 421 through the liquid crystal panel 20, and the light is perceived in a blurred manner.

  In short, by controlling the transmittance of the liquid crystal panel 20, an entity display mode in which the entity is visually recognized (see FIGS. 1 and 4) and an entity non-display mode in which the entity is not visually recognized (see FIG. 5). You can switch to In the entity display mode, the display device D can be visually recognized in the following manner. For example, since the degree of sharpness (the degree of blurring) of the entity can be controlled according to the degree of transmittance of the liquid crystal panel 20, the degree of visibility of the entity can be adjusted by adjusting the transmittance. In addition, the image displayed on the specific pixel region G10 and the entity can be visually recognized. In addition, by displaying a portion of the specific pixel region G10 that overlaps the entity with a color different from that of the other portions, an illusion can be given as if the entity is the display color.

  Now, the control device 600 (see FIG. 6), which will be described later, controls the electric motor 424, so that the decoration ring 420 is positioned from the position facing the display surface 20a of the liquid crystal panel 20 (see FIG. 4) and the position facing the decoration ring 420. It reciprocates to the deviated position (see FIG. 5). The bracket 425 is disposed together with the light source 423 at a position away from the position facing the display surface 20a (see FIGS. 4 and 5). Therefore, the bracket 425, the electric motor 424, and the light source 423 are hidden behind the instrument panel and are not visually recognized as shown in FIG.

  Although the case 10 is assembled to the instrument panel as described above, the illustration of the instrument panel existing around the case 10 is omitted in FIG. Moreover, in FIG.4 and FIG.5, the state which removed the display apparatus D from the instrument panel is illustrated.

  In the entity display mode shown in FIG. 4, a part of the decoration ring 420 located in the specific pixel region G <b> 10 is seen through the liquid crystal panel 20. On the other hand, in the entity non-display mode shown in FIG. 5, the decoration ring 420 is hidden by the second pixel region G40 and is not visually recognized. In addition, by moving the decoration ring 420, the area of the part which exists in the position which opposes the display surface 20a among the decoration rings 420 reduces in the entity display mode compared with the entity display mode.

  In the entity display mode shown in FIGS. 1 and 4, an area including the entire decoration ring 420 in the display surface 20a is set as the specific pixel area G10, and the entire outside of the specific pixel area G10 is set as another pixel area. It is set as G20. In the specific pixel region G10, a pointer image G14 indicating the scale 421, a boss image G15 simulating a boss portion that is positioned at the center of rotation of the pointer image G14 and holds the pointer, and a numerical image G13 representing numerical values corresponding to the scale 421 , And a shadow image G12 are displayed. The shadow image G12 is an image representing an afterimage of the pointer in a manner that makes a radar image.

  The shadow image G12 is an image simulating a shadow extending from the pointer image G14 to the opposite side in the rotation direction. Therefore, the display position of the shadow image G12 also changes according to the display position of the pointer image G14. Note that the length of the shadow image G12 in the rotation direction is set longer as the rotation speed of the pointer image G14 is higher. Then, by controlling the display position of the pointer image G14 according to the vehicle speed, the vehicle speed is displayed by a combination of the pointer image G14 and the scale 421.

  In short, in the entity display mode shown in FIGS. 1 and 4, the black image displayed in the other pixel region G20 is used as the background, and the diffusion plate 33, the decoration ring 420, the pointer image G14, the numeric image G13, and the boss image G15. And the shadow image G12 are visually recognized in combination. Further, since the optical path length in the viewing direction is different between the display surface 20a, the entity, and the diffusion plate 33, parallax due to the difference in focal length occurs. That is, the entity is visually recognized so as to exist on the rear side (back side) in the visual recognition direction of the display surface 20a, and the diffusion plate 33 is visually recognized so as to exist further on the rear side of the entity.

  A black background image is displayed in the other pixel region G20. Further, in another pixel region G20, a direction indication image G22 that displays the direction in which the winker is operated and a warning image G23 that displays warnings of various abnormalities are displayed with the background image as a background. All the images displayed in the other pixel region G20, that is, the direction indicating image G22, the warning image G23, and the black background image are set so that the transmittance is opaque (RGB is all off). On the other hand, the white background image displayed in the specific pixel region G10 is set so that the transmittance is totally transmissive (RGB is all on).

  In the entity non-display mode shown in FIG. 5, the display surface 20a is divided into a first pixel region G30 and a second pixel region G40 that is a region outside the first pixel region G30. The second pixel region G40 is set to have a low transmittance so that the decoration ring 420 is not visually recognized, and the rotation position of the decoration ring 420 is controlled outside the position corresponding to the first pixel region G30. . Specifically, a part of the decoration ring 420 exists at a position facing the second pixel region G40, and the other part exists outside the position facing the display surface 20a. Therefore, the decoration ring 420 is not visually recognized by the user. In the second pixel area G40, a direction indication image G41 is displayed with a black background image as a background.

  In the first pixel region G30, a vehicle speed image G31 representing the vehicle speed as a numerical value and a remaining power image G32 representing the remaining power of the in-vehicle battery are displayed. The background image of the first pixel area G30 representing the background of the vehicle speed image G31 and the remaining power image G32 is set to have a higher transmittance than the background image of the second pixel area G40.

  The drive circuit 63 shown in FIG. 6 is mounted on the circuit board 60 and controls the driving of the above-described thin film transistor included in the liquid crystal panel 20 in accordance with a command signal output from the microcomputer 61. The power supply circuit 64 is mounted on the circuit board 60 and controls the amount of power supplied to the light source 34 of the backlight 30 according to the command signal output from the microcomputer 61. Specifically, on / off of power supply to the light source 34 is controlled.

  A control device 600 is configured by a microcomputer 61, a memory 62, an input processing circuit, an output processing circuit, and the like mounted on the circuit board 60. It can be said that the control device 600 controls the display image of the liquid crystal panel 20 by controlling the drive circuit 63 and also controls the on / off of the backlight 30 by controlling the power supply circuit 64.

  The memory 62 stores image data representing various images displayed on the liquid crystal panel 20. The microcomputer 61 also functions as switching means 61a that switches the display mode according to the state of the vehicle. For example, when the ignition switch (IGSW 601) is turned on, the power supply to the backlight 30 is turned on, and the liquid crystal panel 20 is displayed in the start effect mode in which the effect image is displayed while preventing the entity from being visually recognized. Even when the IGSW 601 is turned off, the liquid crystal panel 20 is displayed in the end effect mode in which the effect image is displayed while the entity is not visually recognized, and then the power supply to the backlight 30 is turned off.

  In a period until the IGSW 601 is turned off after the start effect mode is finished, the display position of the pointer image G14 is controlled so as to indicate the physical quantity based on the physical quantity such as the vehicle speed detected by the sensor 602 in the normal state. Specifically, the liquid crystal panel 20 is displayed in the entity display mode shown in FIGS. In this case, the display layout of the liquid crystal panel 20 can be changed according to the user's preference. However, the transmittance of the other pixel region G20 is less than a predetermined value.

  When an event that satisfies a predetermined condition occurs, such as when the remaining power of the in-vehicle battery is less than a predetermined value or when the user requests switching of the display, the entity display mode is exemplified in FIG. Switch to entity hidden mode. In the example of FIG. 5, the rotational position of the decoration ring 420 is controlled so that a part of the decoration ring 420 is located away from the position facing the liquid crystal panel 20. In order to prevent the decoration ring 420 from being visually recognized, display control is performed so that the portion of the display surface 20a of the liquid crystal panel 20 where the decoration ring 420 is located on the back side becomes the second pixel region G40. The vehicle speed image G31 is controlled to an image representing the vehicle speed detected by the sensor 602.

  FIG. 7 is a flowchart showing a procedure of processing repeatedly executed at a predetermined cycle by the central processing unit included in the microcomputer 61. First, in step S10, it is determined whether or not the entity display mode is requested. An example in which the entity display mode for allowing the user to visually recognize the decoration ring 420 is a case where a physical quantity is displayed by pointing the scale 421 of the decoration ring 420 with the pointer image G14. Specifically, As shown in FIG. 1, the vehicle speed is displayed. On the other hand, an example in which an entity non-display mode that does not allow the user to visually recognize the decoration ring 420 is a case where attention is paid to an image displayed on the liquid crystal panel 20. Specifically, there are cases where attention is paid to the remaining power image G32 shown in FIG. 4, the opening image displayed when the display device D is activated, the ending image displayed when the display device D is activated, and the like.

  If it is determined in step S10 that the non-display mode is selected, in the subsequent step S11, as shown by the dotted line in FIG. 4, the retreat control for retracting the decoration ring 420 to the back side of the second pixel region G40 is executed. . Thereafter, in step S12, effect control is performed to display the liquid crystal panel 20 as follows so that the decoration ring 420 is not visually recognized. That is, in the second pixel region G40, an image with a low transmittance is displayed to such an extent that the decoration ring 420 cannot be visually recognized. In the first pixel region G30, an image for informing a physical quantity such as a vehicle speed image G31 or a remaining power image G32 is displayed.

  In the first pixel region G30 in the non-display mode, it is not necessary to reduce the transmittance to such an extent that the diffusion plate 33 that is an object located on the back side of the liquid crystal panel 20 cannot be visually recognized. For example, even if the transmittance of the first pixel region G30 is increased, the decoration ring 420 is not visually recognized because it is retracted, and the diffusion plate 33 located on the back side of the decoration ring 420 is visually recognized. Become. If the transmittance is 100%, the diffuser plate 33 in this case is visually recognized as surface emitting with the color of the light source 34.

  If it is determined in step S10 that the display mode is selected, in step S13, as shown in FIG. 1, the electric motor 424 is controlled so as to move the decoration ring 420 to the position indicated by the pointer image G14. To do. Thereafter, in step S14, the transmittance of the specific pixel region G10 is controlled so that the liquid crystal panel 20 is displayed as follows and at least a part of the decorative ring 420 is visually recognized. The specific pixel region G10 is set so as to include the decoration ring 420. In addition, the pointer image G14, the numerical image G13, the boss image G15, and the shadow image G12 are displayed in the specific pixel region G10. Thus, the physical quantity such as the vehicle speed is displayed when the pointer image G14 indicates the scale 421.

  In the specific pixel region G10, the diffusion plate 33 is visually recognized in a region where no entity is present and in which the pointer image G14, the numerical image G13, the boss image G15, and the shadow image G12 are not displayed. If the transmittance of this region is 100%, the diffusion plate 33 in this case is visually recognized as surface emitting with the color of the light source 34. That is, the entity, the pointer image G14, the numeral image G13, the boss image G15, and the shadow image G12 are visually recognized with the diffusion plate 33 as the background. The other pixel region G20 is controlled to have a transmittance lower than that of the specific pixel region G10. The microcomputer 61 when executing the process of step S10 corresponds to “switching means” for switching between the entity display mode and the entity non-display mode.

  As described above, according to the present embodiment, the decoration ring 420 as a decoration member (substance) for decorating an image displayed on the liquid crystal panel 20 is disposed between the liquid crystal panel 20 and the backlight 30. Yes. Therefore, it is possible to avoid the problem that “a part of the image by the liquid crystal panel 20 is blocked by the entity and cannot be seen” that occurs when the entity is arranged on the front side of the liquid crystal panel 20. Therefore, the entire display surface 20a of the liquid crystal panel 20 can be used effectively while combining the liquid crystal panel 20 with the decoration ring 420 as an entity to give the display device D a sense of depth.

  Further, according to the present embodiment, the entity is visually recognized on the back side of the image by the liquid crystal panel 20, and the diffusion plate 33 is further visually recognized on the back side of the entity. Therefore, it is possible to realize layer display of at least three layers and improve the appearance with depth.

  Furthermore, according to this embodiment, since the transmittance of the specific pixel region G10 in the portion where the entity is located on the back side is higher than that of the other pixel regions G20, the entity is easily visible through the specific pixel region G10. Become. On the other hand, in the other pixel region G20, an object (diffusion plate 33) existing on the back side of the liquid crystal panel 20 is hardly visible. For this reason, an entity viewed through the specific pixel region G10 becomes conspicuous, and it is promoted that a line of sight is attracted to the entity.

  Further, in the present embodiment, a light source 423 that illuminates the decoration ring 420 is provided separately from the backlight 30. For this reason, when the scale 421 of the decoration ring 420 and the various images displayed on the liquid crystal panel 20 cause a floating feeling, the scale 421 can be clearly seen, so that the parallax is emphasized and the floating feeling is emphasized. Can be improved.

  Furthermore, in this embodiment, the scale 421 as an entity is indicated by the pointer image G14. Therefore, the scale 421 is visually recognized on the back side of the pointer image G14, and it is possible to improve the appearance with a depth. Furthermore, since the diffusion plate 33 that is the background of the pointer image G14 is visually recognized on the back side of the scale 421, the sense of depth can be improved.

  Furthermore, according to this embodiment, the liquid crystal panel 20 is controlled so that the other pixel region G20 becomes a black image. Therefore, the diffusion plate 33 is not visually recognized in the other pixel region G20, and the luminance of the specific pixel region G10 is higher than the luminance of the other pixel region G20, so that the attractiveness to the decoration ring 420 is further improved. it can.

  Further, according to the present embodiment, the entity display mode for increasing the transmittance of the specific pixel region G10 to such an extent that the entity (decorative ring 420) can be visually recognized, and the entity for decreasing the transmittance so that the entity cannot be visually recognized. Switching means (step S10) for switching to the object non-display mode is provided. Therefore, by switching the display of the liquid crystal panel 20, it is possible to easily realize a display in which an entity appears or disappears.

  Furthermore, according to the present embodiment, the electric motor 424 moves the entity parallel to the display surface 20a. Therefore, the entity can be made movable while avoiding increasing the size of the display device D in the viewing direction. The electric motor 424 reciprocates the entity between a position facing the display surface 20a of the liquid crystal panel 20 and a position deviating from the facing position. Therefore, in the entity non-display mode, the area of the portion of the entity facing the display surface 20a can be reduced. Therefore, the area of the second pixel region G40 in the entity non-display mode, that is, the pixel region for hiding the entity can be reduced. For this reason, the area required to have low luminance can be reduced, and the degree of freedom of display contents in the entity non-display mode can be improved.

(Second Embodiment)
In the said 1st Embodiment, the decoration ring 420 which is an entity is rotationally moved. On the other hand, in this embodiment, the decoration ring 440 is moved in parallel to the display surface 20a without changing the orientation. Moreover, by switching the plurality of divided pieces 441, 442, 443, 444 in parallel, the mode is switched between the union mode shown in FIG. 8 and the separation mode shown in FIG.

  In the combined mode, the plurality of divided pieces 441 to 444 are moved so as to form one decorative ring 440. A decoration ring image G50 is displayed on a portion of the liquid crystal panel 20 facing the decoration ring 440. On the outer side of the decorative ring image G50, a vehicle speed image G51 representing the vehicle speed as a numerical value and a fuel remaining amount image G52 representing the remaining fuel amount are displayed. A pointer image G53, a scale image G54, and a numerical image G55 are displayed on the inner side of the decorative ring image G50.

  In the combined mode, an area where the decorative ring image G50 is displayed in the liquid crystal panel 20 corresponds to a “specific pixel area”. The area where each of the images G50 to G55 is not displayed corresponds to “another pixel area” where the background image is displayed. That is, the decoration ring image G50 is displayed at a position overlapping the decoration ring 440, and is set so that the light transmittance is higher than that of the background image. Therefore, the decoration ring 440 is visible through the liquid crystal panel 20. Therefore, the decoration ring image G50 can be visually recognized by overlapping with the decoration ring 440, and the decoration ring 440 can be viewed as if it is an entity formed with the color of the decoration ring image G50.

  In the separation mode, the plurality of divided pieces 441 to 444 are separated and arranged. Each of the divided pieces 441 to 444 decorates each pointer image G63 and scale image G64 described below. Four sets of pointer images G63 and scale images G64 located at the four corners of the liquid crystal panel 20 respectively display the remaining fuel amount, the engine speed, the engine coolant temperature, and the fuel consumption index. A vehicle speed image G61 representing the vehicle speed as a numerical value is displayed at the center of the liquid crystal panel 20.

  In the separation mode, an area where the decorative ring image G60 is displayed in the liquid crystal panel 20 corresponds to a “specific pixel area”, and an area where each of the images G60 to G64 is not displayed is a background image. This corresponds to a “pixel area”. That is, the decorative ring image G60 is set so that the light transmittance is higher than that of the background image, and the divided pieces 441 to 444 are viewed through the liquid crystal panel 20. Therefore, the decoration ring image G60 can be visually recognized by overlapping with the divided pieces 441 to 444, and the divided pieces 441 to 444 can be made an illusion as if they are entities formed with the color of the decoration ring image G60 or the like. .

  In short, it can be said that the liquid crystal panel 20 is controlled so that the division pieces 441 to 444 are moved by switching between the merge mode and the separation mode, and the position or shape of the specific pixel region is changed along with the movement. In addition, in the said 1st Embodiment, although the rotational movement range of the decoration ring 420 is expanded to the outer side of the display surface 20a, in this embodiment, the movement range of the division | segmentation pieces 441-444 is displayed on the display surface 20a. It is limited to the range (inner side) that faces.

  As described above, even when the decoration ring 440 is translated as in the present embodiment, the same effect as in the first embodiment is exhibited. In addition, since the decoration ring 440 is separated and moved into the plurality of divided pieces 441 to 444, the degree of freedom of the position of the specific pixel region is improved as compared with the case where the decoration ring 420 is rotated. Therefore, the degree of freedom of display contents can be improved in both the entity display mode and the entity non-display mode.

(Third embodiment)
In the second embodiment, the plurality of divided pieces 441 to 444 are translated without changing the direction. On the other hand, in the present embodiment shown in FIG. 10, the plurality of divided pieces 451, 452, 453, and 454 that configure the decoration ring 450 are configured to rotate about each of the plurality of rotation shafts 450 a and 450 b. Has been. The dashed-two dotted line in FIG. 10 shows the union mode which was moved so that the some division | segmentation piece 451-454 may be combined and the one decoration ring 450 may be formed.

  In the combined mode and the separation mode, an area where the decorative ring images G70 and G71 are displayed in the liquid crystal panel 20 corresponds to a “specific pixel area”. The region where the decorative ring images G70 and G71 are not displayed corresponds to “another pixel region” where the background image is displayed. That is, the decorative ring images G70 and G71 are set so that the light transmittance is higher than that of the background image, and the decorative ring 450 or the divided pieces 451 to 454 are visible through the liquid crystal panel 20. Is done. Therefore, the decoration ring images G70 and G71 are visually recognized by overlapping with the divided pieces 451 to 454, and the decoration ring 450 is illusioned as if it is an entity formed with the color of the decoration ring images G70 and G71. be able to.

  In short, it can be said that the liquid crystal panel 20 is controlled so that the divided pieces 451 to 454 are moved by switching between the merge mode and the separation mode, and the position or shape of the specific pixel region is changed along with the movement.

  As described above, according to the present embodiment, the decoration ring 440 is separated and moved into the plurality of divided pieces 451 to 454, so that the degree of freedom of the position of the specific pixel region is higher than that in the first embodiment in which the decoration ring 440 is not separated. improves. Moreover, according to the structure of this embodiment which rotates the division pieces 451-454 compared with the said 2nd Embodiment which moves each division piece 441-444 in parallel, the mechanism in which the division pieces 451-454 are rotated is simplified. Can be made small.

(Other embodiments)
The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made as illustrated below. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also combinations of the embodiments even if they are not explicitly stated unless there is a problem with the combination. Is also possible.

  The light emitting surface 33b of the backlight 30 is preferably formed larger than the display surface 20a of the liquid crystal panel 20. According to this, when the entire surface of the display surface 20a has a low transmittance, a portion P2 (see FIG. 2) outside the light emitting surface 33b of the backlight 30 is visually recognized through the liquid crystal panel 20. The fear can be reduced. Therefore, the possibility that the appearance of the display device D is impaired can be reduced.

  In the embodiment shown in FIG. 1, the scale image G11 is displayed in the specific pixel region G10, but may be displayed in another pixel region G20.

  In the embodiment shown in FIG. 3, the electric motor 424 that rotates the decoration ring 420 is fixed at a predetermined position. On the other hand, you may comprise the electric motor 424 so that a movement with the decorating ring 420 is possible.

  In the embodiment shown in FIG. 3, the light source 423 is attached to the decorative ring 420, but the light source 423 may be eliminated. The specific pixel regions G10, G50, G60, G70, and G71 may be set so that the whole entity can be seen, or may be set so that a part of the entity can be seen.

  The boundary between the specific pixel areas G10, G50, G60, G70, G71 and the other pixel areas G20 is preferably a gradation display image in which the luminance gradually changes.

  The decorative member according to the first embodiment is a ring-shaped decorative ring 420, but the decorative member according to the present invention is not limited to the ring shape, and for example, the rotation direction of the pointer image G14 It may be an arc shape extending in a circle.

  In each of the above embodiments, the background image displayed in the other pixel region G20 is controlled to black. However, the background image is not limited to black and may have a lower transmittance than the specific pixel region G10. For example, the color and brightness of the background image may be set arbitrarily.

  In the embodiment shown in FIG. 5, in the entity non-display mode, when the decoration ring 420 is rotationally controlled to a position deviating from the position facing the display surface 20 a, a part of the decoration ring 420 is set to a position away from the position. ing. On the other hand, you may make it the position which removed the whole decoration ring 420. FIG.

  In each embodiment, the liquid crystal panel 20 is a full color type, but may be a monochrome type. Further, the present invention can be applied not only to a matrix type having row electrodes and column electrodes but also to a segment liquid crystal panel that has segment electrodes of a predetermined shape and displays an image by corresponding pixels.

  In each of the above embodiments, the present invention is applied to the display device D assembled to the instrument panel of the vehicle. However, the present invention is not limited to the application, for example, an electronic mirror mounted on the vehicle. May be applied. The electronic mirror is attached to a front windshield or door trim and displays an image imitating an image reflected on the mirror, and displays an image behind the vehicle. Further, the present invention is not limited to a display device mounted on a vehicle, and may be, for example, a gaming machine such as a pachinko machine or a throttle, or a display device mounted on a home appliance.

  DESCRIPTION OF SYMBOLS 20 ... Liquid crystal panel, 20a ... Display surface, 30 ... Back light, 420 ... Decoration ring (substance), 440 ... Decoration ring (substance), 450 ... Decoration ring (substance), 600 ... Control apparatus, D: Display device, G10, G50, G60, G70, G71: Specific pixel region, G20: Other pixel region.

Claims (10)

A liquid crystal panel (20) forming a display surface (20a) on which an image is displayed;
A backlight (30) for irradiating the liquid crystal panel with light from the back side;
An entity (420, 440, 450) disposed between the liquid crystal panel and the backlight and visually recognized through the liquid crystal panel;
An actuator (424) for moving the entity between the liquid crystal panel and the backlight;
In the specific pixel region (G10, G50, G60, G70, G71), which is the pixel region of the display surface where the entity is located on the back side, light transmittance compared to the other pixel regions (G20). A control device (600) for controlling the liquid crystal panel so that the
The actuator display device comprising Rukoto is retracted so that at least a portion of the outside from the display surface of the liquid crystal panel location of the entity thereof. A liquid crystal panel (20) forming a display surface (20a) on which an image is displayed;
A backlight (30) for irradiating the liquid crystal panel with light from the back side;
An entity (420, 440, 450) disposed between the liquid crystal panel and the backlight and visually recognized through the liquid crystal panel;
An actuator (424) for moving the entity between the liquid crystal panel and the backlight;
In the specific pixel region (G10, G50, G60, G70, G71), which is the pixel region of the display surface where the entity is located on the back side, light transmittance compared to the other pixel regions (G20). A control device (600) for controlling the liquid crystal panel so that the
The entity is formed by combining a plurality of divided pieces (441, 442, 443, 444, 451, 452, 453, 454),
Wherein the actuator includes a state in which the entity was allowed to separate into the plurality of divided pieces, and a state of being united with the plurality of divided pieces, display device comprising switching Rukoto. Switching means (61a) for switching between an entity display mode in which the transmittance of the specific pixel region is increased to such an extent that the entity is visible and an entity non-display mode in which the transmittance is decreased to an extent that the entity cannot be viewed. the display device according to claim 1 or 2, characterized in that it comprises a. A liquid crystal panel (20) forming a display surface (20a) on which an image is displayed;
A backlight (30) for irradiating the liquid crystal panel with light from the back side;
An entity (420, 440, 450) disposed between the liquid crystal panel and the backlight and visually recognized through the liquid crystal panel;
An actuator (424) for moving the entity between the liquid crystal panel and the backlight;
In the specific pixel region (G10, G50, G60, G70, G71), which is the pixel region of the display surface where the entity is located on the back side, light transmittance compared to the other pixel regions (G20). A control device (600) for controlling the liquid crystal panel so that the
Switching means (61a) for switching between an entity display mode in which the transmittance of the specific pixel region is increased to such an extent that the entity is visible and an entity non-display mode in which the transmittance is decreased to an extent that the entity cannot be viewed. and, with a,
In the non-display mode, the actuator is in a position where a part of the entity is out of a position facing the display surface of the liquid crystal panel, and the other part of the entity is the display of the liquid crystal panel. A display device , wherein the entity is moved so as to be arranged at a position facing a surface . The display device according to any one of claims 1 to 4 , further comprising a light source (423) that illuminates the entity, separately from the backlight. The display device according to any one of claims 1 to 5, wherein the entity (420) displays a scale (421) indicated by a pointer (G14). The display device according to claim 6 , wherein the pointer is an image displayed on the liquid crystal panel. The actuator display device according to any one of claims 1-7, characterized in that moving the parallel the entity object with respect to the display surface. The actuator display device according to prior Symbol entity was to claim 8, characterized in that reciprocating. Wherein the control device, the display device according to any one of claims 1-9, characterized by controlling the liquid crystal panel so as to display the background image of black on the other pixel areas.

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