JP2008158174A - Display device - Google Patents

Abstract

The present invention relates to a display device that is incorporated in a moving body such as an automobile, a motorcycle, or a ship and displays measurement information through a flat display, and a display device capable of giving a sense of depth to the display and improving the merchantability. provide.
[Solution]
The first flat display 2 that emits and displays the first measurement information 23 and 24 as the predetermined information and the second flat display 3 that emits and displays the second measurement information 33 as the predetermined information are viewed from the observer. In some cases, an interval (space) S is arranged so as to have a perspective difference between the first measurement information 23 and 24 and the second measurement information 33 from the observer. And is visually recognized.
[Selection] Figure 2

Description

  The present invention relates to a display device that is incorporated in a moving body such as an automobile, a motorcycle, and a ship and displays measurement information through a flat display.

  As this type of display device, for example, a device described in Patent Document 1 below is known. This display device includes a first flat display and a second flat display that are stacked with a perspective difference with respect to an observer, and a first flat that is disposed on a side closer to the observer. A large liquid crystal display panel is adopted as the display, and a liquid crystal display panel smaller than the first flat display is adopted as the second flat display disposed on the side far from the observer, and the first flat display is used. The second flat display can be seen through.

In addition, these flat displays are illuminated from a common light source made of a fluorescent tube, and are configured to emit and display predetermined information.
JP 2003-75807 A

  However, the display device described in the above publication has a problem in that there is no sense of depth and the merchantability is poor because each flat display panel is simply placed in front of and behind the observer.

  The present invention has been made in view of this point, and a main object of the present invention is to provide a display device capable of improving the merchantability by giving a sense of depth to the display.

  In order to achieve the above object, the present invention is a display device including a plurality of flat displays for emitting and displaying predetermined information, and the flat displays are spaced at a predetermined interval so as to have a perspective difference with respect to an observer. And at least a first flat display and a second flat display.

  The present invention comprises control means for controlling the operation of each flat display, and the control means causes the first and second flat displays to emit light with a time difference in response to a predetermined input signal. Features.

  The present invention comprises control means for controlling the operation of each flat display, wherein the control means causes the first and second flat displays to emit light with different luminances.

  The present invention is characterized in that the first and second flat displays are provided such that respective display areas do not overlap the observer.

  ADVANTAGE OF THE INVENTION According to this invention, the initial purpose can be achieved and the display apparatus which can give a feeling of depth to a display and can improve merchantability can be provided.

  1 to 3 show an embodiment of the present invention. FIG. 1 is a front view of a display device according to the present invention, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. FIG.

  1 and 2, the display device is, for example, a combination meter that is mounted on an automobile and displays different types of measurement information, and includes a case body 1, a first flat display 2, and a third flat display. 3 and a control means (control unit) 4.

  The case body 1 is made of, for example, milky white synthetic resin material, and connects the first and second flat displays 2 and 3 and the control means 4.

  The first flat display 2 includes a first display panel 21 and a first light source 22 that illuminates the first display panel 21 from behind, and one case body that is closer to the observer. Is arranged.

  The first display panel 21 is a known TN type liquid crystal panel in which TN type liquid crystal molecules are sealed between a pair of glass substrates, for example, and has a panel size substantially corresponding to the front external shape of the display device itself. Yes. The first display panel 21 is provided with, for example, a black mask layer having a light shielding property on the opposite surface of the glass substrate, and various measurement values (first First measurement value display sections 23 and 24 for displaying (predetermined information) are provided.

  In addition, a film-like polarizing plate (not shown) is attached to the first display panel 21 on the surface facing the observer side and the surface on the opposite side, and among these, the surface facing the opposite side to the observer side An opening corresponding to the second display panel 3 is formed in the polarizing plate attached to the plate.

  In FIG. 1, the numerals “0 to 6” and the letters “rpm”, “E”, and “F” are light-transmitting fixed display portions formed by removing the mask printing. Unlike the measurement value display units 23 and 24, the unit is backlit without any shape (design) change.

  Among the measurement value display units 23 and 24, the measurement value display unit 23 is composed of a segment (bar graph) display unit combined in a substantially “C” shape, and indicates the transmission / non-transmission state of the segment according to an electric signal. By switching, the engine speed of the vehicle can be displayed, and when the segment is in the transmissive state, it is backlit with the illumination color described later through the first light source 22.

  The measurement value display unit 24 also includes a segment (bar graph) display unit combined in a substantially “C” shape. By switching the transmission / non-transmission state of the segment in accordance with an electrical signal, the fuel remaining amount of the vehicle can be reduced. When the segment is in a transmissive state, it is illuminated with the illumination color described later through the first light source 22.

  The first light source 22 is formed of, for example, a white light emitting diode, and the measurement value display units 23 and 24 and the fixed display unit are, for example, bluish green through a coloring filter (not shown) arranged between the first display panel 21. To illuminate.

  The second flat display 3 includes a second display panel 31 and a second light source 32 that illuminates the second display panel 31 from behind, and is on the side farther from the observer than the first flat display 2. It is arrange | positioned at one case body used.

  The second display panel 31 is composed of, for example, a TN liquid crystal panel similar to the first display panel 21, but has a smaller panel size than the first display panel 21. The second display panel 31 is provided with a light-shielding black mask layer on the opposite surface of the glass substrate. From the vehicle speed (second predetermined information) in a region where the mask layer is partially removed. The second measurement value display unit 33 and a fixed display unit “km / h” are provided. The second display panel 31 has a film-like polarizing plate (not shown) attached to the surface facing the viewer side and the opposite surface.

  In addition, the second display panel 31 is arranged with a space (space) S from the first display panel 21, so that the second display panel 31 can be displayed on the first display when viewed from the observer. It is arranged at a position deeper than the panel 21. In this example, the interval S is set to 20 mm, for example.

  The first display panel 21 region corresponding to the region including the second measurement value display unit 33 and the fixed display unit of the second display panel 31 has a light transmissive window except the mask layer. Part 25 is formed, and the second measurement value display part 33 and the fixed display part can be visually recognized through the window part 25, whereby the first and second display panels 21 and 31 The measurement value display units 23, 24, and 33 are arranged so as not to overlap each other.

  The second measurement value display unit 33 is composed of a digital display unit that combines linear and “day” -shaped segments, and digitally displays the vehicle speed as described above.

  The second light source 32 is made of, for example, a white light emitting diode, and the second measured value display unit 33 and the fixed display unit are connected to the second display panel 31 through a coloring filter (not shown). 1 is illuminated in the same blue-green color as the measured value display units 23 and 24.

  The control means 4 comprises a microcomputer 41, a first drive driver 42, and a second drive driver 43 as shown in FIG.

  A first input terminal 44 for inputting a switching signal from a start switch (ignition switch) mounted on the vehicle and a detection signal from an engine speed sensor mounted on the vehicle are input to the input side of the microcomputer 41. A second input terminal 45 for inputting, a third input terminal 46 for inputting a detection signal from a fuel sensor mounted on the vehicle, and a fourth input terminal for inputting a detection signal from a vehicle speed sensor mounted on the vehicle. 47 is provided, and the microcomputer 41 performs arithmetic processing on each detection signal input through these input terminals 45 to 47, and outputs the engine speed, the remaining fuel amount, and the vehicle speed, which are the processing results, as a first and a second. The first and second display panels 21 and 22 are operated through the drive drivers 42 and 43 to be displayed on the first and second measured value display units 23, 24 and 33. Further, the microcomputer 41 controls the illumination of the first and second display panels 21 and 22 by turning on and off the first and second light sources 21 and 32.

  When the microcomputer 41 determines that the start switch is turned on based on the switching signal from the first input terminal 44, the microcomputer 41 first displays the first and second display panels 21 and 31 immediately after the display operation. The second light source 32 is turned on, and after a predetermined time has elapsed from the lighting operation of the second light source 32, a process of turning on the first light source 22 is executed.

  Thereby, the observer first displays the second measurement information 33 on the second display panel 31 arranged at the deepest position first, and then is positioned in front of the second display panel 31. The first measurement information 23 and 24 of the first display panel 31 is displayed by light emission.

  The light emission luminance of the first measurement information 23 and 24 displayed on the first display panel 21 is set brighter than the light emission luminance of 33 of the second measurement information displayed on the second display panel 31. ing.

  As described above, in the present embodiment, the first flat display 2 that emits and displays the first measurement information 23 and 24 as the predetermined information and the second flat display that emits and displays the second measurement information 33 as the predetermined information. 3 are arranged with an interval (space) S so as to have a perspective difference when viewed from the observer, so that the first measurement information 23 and 24 and the second measurement information 33 are obtained from the observer. Is visually recognized with a perspective difference due to the distance S, it is possible to give a sense of depth to the display and improve the merchantability.

  In the present embodiment, the control means 4 causes the first and second flat displays 2 and 3 to emit light with a predetermined time difference in accordance with a switching signal from the first input terminal 44 as a predetermined input signal. As a result, it is possible to express a new and innovative way of viewing, thereby further improving the merchantability.

  In order to cause the first and second flat displays 2 and 3 to perform a light emission operation with a predetermined time difference, the order and how much the time difference is set are arbitrary.

  The flat displays 2 and 3 emit and display predetermined information. The flat displays 2 and 3 are arbitrary as long as they are arranged at a distance S so as to have a perspective difference from an observer. Various EL displays (organic and inorganic) can be used. Or fluorescent display tube may be used.

  Further, three or more flat displays 2 and 3 may be provided at intervals, and the three displays may be caused to emit light in an appropriate pattern having a time difference.

  In the present embodiment, the first and second flat displays 2 and 3 have their respective display areas (first measurement value display units 23 and 24 and second measurement value display unit 33) for the observer. By providing them so as not to overlap each other, the information (measurement value display parts 23, 24, 33) that are emitted and displayed can be easily read and the sense of depth can be clearly displayed.

  Further, in the present embodiment, the control means 4 causes the first and second flat displays 2 and 3 to perform light emission operations with different luminances, so that the stereoscopic effect can be expressed in an emphasized manner, thereby improving the merchantability. it can.

  Note that when the first and second flat displays 2 and 3 are operated to emit light with different luminances, the light emission luminance of the first display panel 21 may be set darker than the light emission luminance of the second display panel 31.

1 is a front view of a display device according to a first embodiment of the present invention. AA sectional drawing of FIG. The block diagram which shows the system configuration | structure of the display apparatus in the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case body 2 1st flat display 3 3rd flat display 4 Control means 21 1st display panel 22 1st light source 23,24 1st measured value display part 31 2nd display panel 32 2nd light source 41 microcomputer 42 first drive driver 43 second drive driver 44 first input terminal 45 second input terminal 46 third input terminal 47 fourth input terminal

Claims (4)

A display device comprising a plurality of flat displays for emitting and displaying predetermined information,
A display device comprising: at least a first flat display and a second flat display arranged at a predetermined interval so that the flat display has a perspective difference with respect to an observer. Control means for controlling the operation of each flat display,
2. The display device according to claim 1, wherein the control means causes the first and second flat displays to emit light with a time difference according to a predetermined input signal. Control means for controlling the operation of each flat display,
The display device according to claim 1, wherein the control unit causes the first and second flat displays to emit light with different luminances. The display device according to claim 1, wherein the first and second flat displays are provided so that each display area does not overlap the observer.

Images