JP2005049203A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of imparting a stereoscopic effect and a sense of depth to a display image with small size and also capable of enhancing a design effect. <P>SOLUTION: The display device comprises: first displays 4, 5, and 9 for displaying the first displaying images 41, 51, and 91a; a second display 12 for forming second displaying images d1, and d2; a transmission and reflection member 13 which is disposed between the first and the second displays 4, 5, 9, and 12, and transmits the first displaying images 41, 51, and 91a to an observer ob, and reflects the second displaying images d2 on the observer, thereby the first and the second displaying images 41, 51, 91a, d1, and d2 are composited and displayed; and a surface cover 14 provided on the observer's side of the transmission and reflection member 13, wherein the transmission and reflection member 13 directly reflects the second displaying image d1 from the second display 12 on the observer ob and also oppositely arranged to the surface cover 14 so as to reflect the second displaying image d2 from the second display 12 on the observer ob. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a display device that is mounted on a vehicle, for example, and includes at least two displays, and a display image from each display is combined and displayed by transmission and reflection on a transmission / reflection member.

Conventionally, in this type of display device, a stereoscopic image and a sense of depth are given to the display by combining a real image and a virtual image using a transmission / reflection member such as a half mirror. For example, the first display is provided behind the half mirror. An indicator for light emission of the meter as a measuring instrument is disposed, a display as a second indicator is disposed in front of the half mirror, and a display image of the light emitting pointer of the instrument is transmitted through the half mirror. Each display image is synthesized and displayed by the half mirror by reflecting the display image on the half mirror. Then, by providing a peripheral wall around the display, a three-dimensional effect and a sense of depth are given to the periphery of the display surface of the display to improve the design (for example, see Patent Document 1).
JP-A-3-273945 (FIG. 1)

  However, the conventional display device gives a three-dimensional effect around the display surface, and the display image itself is only a flat surface and has a poor three-dimensional effect and depth. Further, in order to obtain a stereoscopic effect and a sense of depth, if the display image of the second display is combined and displayed over a wide range of the display image of the first display, the inclination of the half mirror or the second display Therefore, there has been a concern about an increase in the size and cost of the display device. Accordingly, the present invention has been made with respect to the above-mentioned problems, and a main object thereof is to provide a display device that is compact and can provide a three-dimensional feeling and a depth feeling to a display image to improve design. .

  In order to achieve the above object, the present invention provides a first display that forms a first display image, a second display that forms a second display image, and the first and second displays. A transmission / reflection member disposed between and transmitting the first display image to the viewer side and reflecting the second display image to the viewer side to synthesize and display the first and second display images; In the display device including the front cover provided on the observer side of the transmission / reflection member, the transmission / reflection member directly reflects the second display image from the second display to the observer side. At the same time, the second display image from the second display reflected by the front cover is arranged to face the front cover so as to reflect the second display image to the viewer side.

  A second display image from the second display is used as a background image.

  Further, the second display image from the second display is a three-dimensional image.

  In addition, a first reflection surface that reflects the second display image directly to the observer side on the transmission reflection member, and a second reflection surface that reflects the second display image reflected by the front cover to the observer side. 2 reflection surfaces are provided, and the first reflection surface and the second reflection surface are planes with different angles.

  The display device of the present invention can provide a display device that is compact and can provide a three-dimensional effect and a depth feeling to a display image to improve design.

  The display device according to the present invention includes first display devices 4, 5, and 9 that form first display images 41, 51, and 91a, and a second display device 12 that forms second display images d1 and d2. The first display images 41, 51, and 91a are disposed between the first and second display devices 4, 5, 9, and 12, and the first display images 41, 51, and 91a are transmitted to the viewer ob side, and the second display image d2 is viewed by the viewer. The first and second display images 41, 51, 91 a, d 1, d 2 by being reflected to the side, and the front cover 14 provided on the observer ob side of the transmission / reflection member 13; The transmission / reflection member 13 directly reflects the second display image d1 from the second display 12 to the observer ob side and from the second display 12 reflected by the front cover 14. The second display image d2 is opposed to the front cover 14 so as to reflect toward the observer ob side. It is intended to be. With such a configuration, it is possible to provide a display device that is compact and can provide a three-dimensional effect and a sense of depth to a display image, thereby improving design.

  The second display images d1 and d2 from the second display 12 are used as background images. With such a configuration, it is possible to provide a display device that is compact and can provide a three-dimensional effect and a sense of depth to a display image, thereby improving design.

  In addition, the second display images d1 and d2 from the second display 12 are stereoscopic images. With such a configuration, it is possible to provide a display device that is compact and can provide a three-dimensional effect and a sense of depth to a display image, thereby improving design.

  In addition, the first reflective surface 131 that reflects the second display image d1 directly to the observer ob side on the transmissive reflecting member 13 and the second display image d2 reflected by the front cover 14 are reflected to the observer ob side. The second reflecting surface 132 is provided, and the first reflecting surface 131 and the second reflecting surface 132 are flat surfaces with different angles. With such a configuration, it is possible to provide a display device that is compact and can provide a three-dimensional effect and a sense of depth to a display image, thereby improving design.

  1 to 3 show a first embodiment of the present invention. Hereinafter, a case where the display device of the present invention is applied to an instrument device mounted on, for example, an automobile will be described.

  The meter device M according to the present embodiment includes a plurality of meters, and in this embodiment, from the left in FIG. 1, the meter M3 including the engine tachometer M1, the speed meter M2, the cooling water temperature meter, and the fuel meter. Is arranged. In this embodiment, a speedometer M2 disposed in the center will be described as an example. As shown in FIG. 2, the speedometer M2 includes a circuit board 1, a driving device 3 that is conductively attached to the circuit board 1 and has a rotating shaft 2 extending forward, and is driven to rotate by the rotating shaft 2 to be a first display. A pointer 4 which is one of the indicators, a display board 5 which is one of the first indicators disposed on the circuit board 1 behind the pointer 4 and a light source for the pointer which illuminates the pointer 4 6, a light source 7 for illuminating the display board 5, a case body 8 arranged between the circuit board 1 and the display board 5, and conductively mounted on the circuit board 1 and arranged in front of the pointer 4. A light emitting display unit 9 that is one of the first displays, a pointer 4, a display plate 5, a turning member 10 for exposing the light emitting display unit 9, and a visor 11 provided on the upper front side of the turning member 10 A light emitting display 12 which is a second display fixed to the visor 11, In front of and member 10, composed of a light emitting display unit 9 and the transparent reflective member 13 disposed between the light-emitting display device 12, front cover 14 that is provided on the front side of the transmissive reflecting member 13. Ob is a driver (observer) who drives the automobile or the like and visually recognizes the measuring instrument M. ee is an area (eyeball area) in which the eyeball position of the observer ob determined by the physical difference such as the height difference of the observer ob or the position of the seat in the case of a vehicle.

  The circuit board 1 is made of a hard circuit board in which a wiring pattern (not shown) is applied to a glass epoxy base material, for example, and driving means for driving / controlling the pointer light source 6, the display board light source 7, and the driving device 3. (Not shown) and various circuit components (not shown) such as resistors and capacitors are conductively connected to the wiring pattern.

  The driving device 3 is composed of a movable magnet-type instrument or a stepping motor, the main part of which is mounted behind the circuit board 1 so that the rotating shaft 2 penetrates the circuit board 1 and is appropriately connected by means such as soldering. It is electrically connected to the wiring pattern (the driving means).

  The pointer 4 is made of a translucent synthetic resin, and includes an instruction portion 41 extending linearly and a cap 42 made of a light-shielding synthetic resin that covers the outer periphery of the rotation center of the indication portion 41. The center of rotation is concealed by the light emitting display unit 9 (look-back member 10), and the tip side is exposed from the light-emitting display unit 9 (look-back member 10) to point to an indicator portion to be described later of the display board 5. In addition, a light receiving unit 44 is provided at the rotation center of the instruction unit 41, and the light receiving unit 44 receives light emitted from the pointer light source 6 disposed behind the light receiving unit 44, and the light is transmitted to the instruction unit 41. A reflecting portion 43 that reflects and guides light is formed on the side, and the indicator portion 41 of the pointer 4 emits light from the pointer light source 6 to form a first display image.

  The display board 5 includes an indicator portion 51 that forms a first display image. The indicator portion 51 has an arcuate array shape along the rotation trajectory of the pointer 4, and is composed of a scale 51 a and a number 51 b to be indicated by the indication portion 41 of the pointer 4. Further, it has a background portion 52 that forms the background of the indicator portion 51. The indicator portion 51 and the background portion 52 are formed of a printed layer formed on the front surface of a thin plate-like base material 53 made of a light-transmitting synthetic resin, and the indicator portion 51 is formed of a white light-transmitting ink. Reference numeral 52 denotes a black light-shielding ink. The print layers of the index portion 51 and the background portion 52 are formed by printing using means such as screen printing.

  The pointer light source 6 is composed of a chip-type light emitting diode that emits red light, for example, and is a light emitter that is arranged near the center of rotation of the pointer 4 and that causes the indicator 41 of the pointer 4 to emit red light through the light receiver 44.

  The display panel light source 7 is formed of, for example, a chip-type light emitting diode that emits white light. The display panel light source 7 is a light emitter that is disposed in the case body 8 and emits the indicator 51 of the display panel 5 in white.

  The case body 8 is made of, for example, white synthetic resin, and functions as a holding member that holds the display plate 5, functions as a housing that houses the pointer light source 6 and the display plate light source 7, and light from the pointer light source 6. It has a function as a reflecting member for reflecting the light to the pointer 4 and to reflect the light of the light source 7 for the display board to the indicator portion 51.

  The light-emitting display unit 9 includes a light-emitting display unit 91 that faces a later-described opening hole 103 of the turning member 10, a driving substrate 92 that drives the light-emitting display unit 91, and the back surface of the light-emitting display unit 91 and the driving substrate 92. And a holding member 93 disposed along the line.

  In the case of the present embodiment, the light-emitting display unit 91 further seals an organic light-emitting layer sandwiched between a pair of electrodes with a pair of glass substrates, and supplies the direct current between the electrodes so that the organic light-emitting layer emits light. An electroluminescent element (organic EL) panel.

  In the case of this embodiment, the light-emitting display unit 91 emits light from the organic light-emitting layer, so that the mileage of the vehicle, fuel consumption (not shown), outside temperature, time, etc., as shown in FIG. A display image 91a composed of predetermined information is displayed by light emission to form a first display image. The display image 91a is visually recognized by the observer ob through the transmission / reflection member 13 and the front cover 14. The emission color of the display image 91a is, for example, bluish green and depends on the emission color of the organic light emitting layer itself.

  The driving substrate 92 is made of, for example, a hard circuit board in which a wiring pattern (not shown) is applied to a glass epoxy base material, and is disposed between the circuit board 1 and the light emitting display section 91. It extends in a direction orthogonal to the plate surface direction (the plate surface direction of the circuit board 1). The driving substrate 92 includes a driving unit (not shown) for driving and controlling the light-emitting display unit 91, and various circuit components (not shown) such as resistors and capacitors connected to the wiring pattern. Yes.

  The holding member 93 is made of a thin plate-like metal material, is press-formed in a substantially “L” cross section, and has a function as a holding member that holds the light emitting display portion 91 and the driving substrate 92.

  Reference numeral 94 denotes a first flexible printed circuit board for electrically connecting the light emitting display unit 91 and the driving substrate 92, and one end of the first flexible printed circuit board 94 is connected to the electrode of the light emitting display unit 91. The other end is electrically connected to the wiring pattern of the driving substrate 92. Reference numeral 95 denotes a second flexible printed board for electrically connecting the circuit board 1 and the driving board 92.

  The facing member 10 is made of black synthetic resin and includes a horseshoe-shaped opening 101 through which the pointer 4 and the display board 5 are exposed. Reference numeral 102 denotes a cover which is integrally extended from the bottom side of the turn-back member 10 upward. The cover 102 has a substantially semicircular shape covering the periphery of the light emitting display unit 91. The cover 102 is provided with an opening hole 103 through which the light emitting display unit 91 faces. In this case, since the light-emitting display unit 91 is held by the holding member 93 while the cover 102 holds down the front surface of the light-emitting display unit 91, the light-emitting display unit 91 is stable between the cover 102 and the holding member 93. Is held in.

  A side wall 104 extending in the direction of the display panel 5 is provided at a portion facing the indicator portion 51 in the peripheral portion of the cover 102. The side wall 104 is provided so that the center of rotation of the pointer 4 cannot be seen from between the cover 102 and the display board 5. Further, the side wall 104 is inclined toward the light emitting display portion 91 (that is, in the present embodiment, the direction of the center of rotation of the pointer 4).

  The visor 11 is made of a black synthetic resin like the turn-back member 10, and includes a “C” -shaped opening 111 through which the light emitting display 12 is exposed, as shown in FIG. 3.

  The light emitting display 12 includes a circuit board 122 including a plurality of light sources 121 and a reflector 125 including first, second, and two reflecting surfaces 123 and 124. The reflector 125 has a “C” shape as in the case of the opening 111.

  As shown in FIG. 3, the light source 121 is composed of, for example, a chip-type light emitting diode that emits blue light, and a plurality of light sources 121 are arranged along the opening 111 of the visor 11, and the circuit board 122 is formed on, for example, a glass epoxy base material. It consists of a hard circuit board with a wiring pattern (not shown). The reflector 125 is made of a white synthetic resin and includes the first and second reflecting surfaces 123 and 124 as described above. The first reflecting surface 123 has a conical shape and reflects light from the light source 121 to the second reflecting surface 124, and the second reflecting surface 124 has a mortar shape, and the first reflecting surface 123 Is reflected by the transmission / reflection member 13. And the light which came out of the 2nd reflective surface 124 of the light emission display 12 can be visually recognized in the transmission / reflection member 13 as the display images d1 and d2 which light-emit in FIG. The light-emitting display image d1 is located inside the scale 51a of the display board 5 and is a background image with respect to the indicator unit 5. Since this background image is premised on the light-emitting display image d2 that repeats reflection, it is necessary to have a design that is subject to up / down / left / right objects.

  In the present embodiment, since the second reflecting surface 124 of the light emitting display 12 has a mortar shape, the reflected light emitting display images d1 and d2 also become a three-dimensional image, giving a sense of depth, and more novel. Appearance can be realized. In addition, the light emitting display images d1 and d2 are bright in blue at the center, and bright as they go, and become darker as they go around.

  The transmission / reflection member 13 is made of a synthetic resin such as acrylic, and a reflection film is formed on the surface thereof so that the light-emitting display image d1 of the light-emitting display 12 can be reflected mainly. The transmitting / reflecting member 13 is disposed to face the front cover 14 and includes a flat reflecting surface 130. The reflecting surface 130 transmits the display portion 91, the indicator portion 51, the display image 91a of the light emitting display 91, and the like to the observer ob side, and reflects the light emitting display image d1 of the light emitting display 12 to the observer ob side. Thus, the display unit 91, the indicator unit 51, the display image 91a of the light-emitting display unit 91, and the like and the light-emitting display image d1 reflected by the light-emitting display unit 12 are combined and displayed. In the present embodiment, as shown in FIG. 1, the light emitting display image d1 overlaps a part of the cover 102 and is compositely displayed on the periphery of the cover 102, and the pointer 4, the indicator 51, the display image 91a, and the light emitting display image. As shown in FIG. 2, d1 is visually recognized by the observer ob so that each display is arranged at a different position, so that a sense of depth can be given. Further, the reflecting surface 130 reflects the display image d2 reflected by the inner surface of the front cover 14 from the light emitting display image d2 from the light emitting display 12 to the observer ob side. In this embodiment, the observer ob To the eyeball region ee (see L1 in FIG. 2). With such a configuration, the observer ob visually recognizes the light emission display image d2 of the light emission display 12 together with the light emission display image d1. By displaying the light emitting display image d2 together with the light emitting display image d1, the light emitting display 12 as the second display is not enlarged, or a display different from the light emitting display 12 is newly provided. In addition, it is possible to provide an instrument device M that is small and can provide a three-dimensional effect and a sense of depth in a display image to improve design. In particular, since the light emitting display image d2 is positioned below the light emitting display image d1 and is continuous from the back to the front, the display image further enhances the three-dimensional effect and the depth feeling, and the design is improved. Can be achieved.

  The front cover 14 is made of a synthetic resin such as acrylic and is provided as close as possible to the transmissive reflecting member 13 side. In this embodiment, the light transmittance is low with a dark color. Therefore, only the indication part 41 of the indicator 4 that has emitted light, the indicator part 51 of the display board 5, the display image 91 a of the light-emitting display part 91, and the light-emitting display images d 1 and d 2 of the light-emitting display 12 can be visually recognized. Moreover, since it has a curved surface so that external light is not reflected by the observer ob, reflection of the external light by the front cover 14 is suppressed and visibility is good.

  In the present embodiment, the reflecting surface 130 is a flat surface, but is not limited to the above-described embodiment. For example, the reflecting surface 130 may be configured by a curved surface that is recessed toward the observer ob. By comprising in this way, the optical effect | action can be exerted on the display image of the light emission display 12 which is a 2nd display device, and the further visual effect can be given.

  Note that if the reflective film of the transmissive reflective member 13 is not provided and the visibility is not lowered, the reflective film need not be provided, and in this case, the cost can be reduced.

  In the present embodiment, the light emitting display unit 91 is an electroluminescent element, but an example of an electroluminescent element panel having the organic light emitting layer has been described. However, the present invention is not limited to this. Any light emitting display portion can be applied, and for example, an electroluminescent element panel having an inorganic light emitting layer, a liquid crystal display element having a backlight, and a display element such as a cold cathode tube may be used.

  In the present embodiment, an example in which the display image 91a emits and displays predetermined information such as the travel distance of the vehicle, fuel consumption, outside temperature, and time has been described. However, the present invention is not limited to this. Arbitrary display images such as characters, symbols, scales, alarm marks, and the like may be displayed by light emission.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same and equivalent part as 1st Example, and the detailed description is abbreviate | omitted.

  In the second embodiment of the present invention, the transmission / reflection member 13 includes a first reflection surface 131 and a second reflection surface 132 that are disposed to face the front cover 14. Each of the first and second reflecting surfaces 131 and 132 is a flat surface, and the second reflecting surface 132 is provided below the middle of the transmissive reflecting member 13 and is different from the first reflecting surface 131. In this embodiment, the second reflection surface 132 is bent toward the observer ob.

  With this configuration, the first reflective surface 131 transmits the display unit 91, the indicator unit 51, the display image 91a of the light-emitting display unit 91, and the like to the observer ob side, and the light-emitting display of the light-emitting display 12 By reflecting the image d1 to the observer ob side, the display image 91a of the light emitting display 91 and the light emitting display image d1 reflected by the light emitting display 12 are combined and displayed. As shown in FIG. Since it is visually recognized by the observer ob so as to be arranged at different positions, it is possible to give a sense of depth, and the second reflective surface 132 allows the light emitting display image from the light emitting display 12 to be displayed on the front cover 14. The light emitting display image d2 reflected from the inner surface is reflected to the observer ob side, and in this embodiment, is reflected to the eyeball region ee of the observer ob (see L2 in FIG. 5). With this configuration, the observer ob can visually recognize the light emitting display image d2 of the light emitting display 12. In this embodiment, the first reflection surface 131 and the second reflection surface 132 are set to have different angles, so that the light emission display image d1 and the light emission display image d2 are displayed in contact with each other as shown in FIG. By doing so, the display image of the luminescent display image d2 gives a three-dimensional effect and a depth sensation to improve design, and the luminescent display image d2 is in contact with the luminescent display image d1 to perform an integrated display, Since it continues from the back toward the front, it becomes a display image that further enhances the three-dimensional effect and the sense of depth, and the design can be improved.

  In each of the above embodiments, since the front cover 14 was a dark color with low transmittance, each display image could not be visually recognized unless it emitted light, but the present invention is limited to the above embodiments. Instead, the front cover 14 may have a high transmittance. In this case, the display board 5 and the like can visually recognize not only the indicator portion 51 but also the background portion 52, so that the background portion 52 can be colored to obtain a design effect.

The front view of 1st Example of this invention. Sectional drawing of the AA line in FIG. The front view of the light emission display of the Example. The front view of 2nd Example of this invention. Sectional drawing of the BB line in FIG.

Explanation of symbols

4 Pointer (first indicator)
5 Display board (first indicator)
9 Light-emitting display unit (first display)
12 Light-emitting display (second display)
13 Transmitting / reflecting member 14 Front cover 41 Indicator (first display image)
51 Index section (first display image)
91a Display image (first display image)
130 reflective surface 131 first reflective surface 132 second reflective surface d1, d2 display image ee eyeball region M instrument device M2 speedometer ob observer

Claims (4)

A first display for forming a first display image, a second display for forming a second display image, and the first display are disposed between the first and second displays. A transmission / reflection member for combining and displaying the first and second display images by transmitting an image to the viewer side and reflecting the second display image to the viewer side; and the viewer side of the transmission / reflection member In the display device provided with a front cover provided on the second display, the transmission / reflection member reflects the second display image from the second display directly to the viewer side and reflects the second display image on the front cover. A display device, wherein the second display image from the display device is disposed so as to be opposed to the front cover so as to reflect the second display image to the viewer side. The display device according to claim 1, wherein the second display image from the second display is a background image. The display device according to claim 2, wherein the second display image from the second display is a stereoscopic image. A first reflection surface that reflects the second display image directly to the observer side on the transmission reflection member, and a second reflection surface that reflects the second display image reflected by the front cover to the observer side. 4. The display device according to claim 1, wherein a reflection surface is provided, and the first reflection surface and the second reflection surface are flat surfaces having different angles. 5.

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