JP2016136115A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device using a plurality of indicators with which it is possible to reduce the effect of a frame and create a large screen having a greater sense of unity, and which excels in visibility.SOLUTION: Provided is a display device mounted in a vehicle and formed with an integral combination of a plurality of flat panel type indicators 111-113, where a frame 115 is provided on the outer circumference of the display surface 114 of each of the plurality of indicators 111-113. The plurality of indicators 111-113 are arranged in a row in one direction so that the adjacent sides 115a, 115b of the frame 115 overlap as seen from the visible side and the adjacent display surfaces 114 constitute an obtuse angle. Then, a prism 120 having a visible-side surface (126) is provided that is disposed on the display surface 114 side of each of the plurality of indicators 111-113 and formed so as to link both ends 111a, 113a in one direction with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display device suitable for use in, for example, a vehicle display device that displays various vehicle information related to a vehicle.

  As a conventional display device, for example, one disclosed in Patent Document 1 is known. The display device of Patent Document 1 is a device used for, for example, OA equipment, home appliances, and the like. This display device includes a transmissive liquid crystal panel in which a predetermined number of pixels are arranged in a matrix, a light source that irradiates the liquid crystal panel at a predetermined angle, and a predetermined number of pixels on the liquid crystal panel according to the irradiation angle from the light source. The projection display device includes an imaging lens that enlarges an image for each pixel block to be formed and projects the image on the screen seamlessly.

  A plurality of the projection display devices are prepared, and the plurality of projection display devices are arranged in a frame-shaped casing so that the display surfaces of the liquid crystal panels are along one plane, and the liquid crystal panels are arranged by the alignment mechanism. An embodiment is described in which, by adjusting the position of the panel, an image of each liquid crystal panel is continuously projected onto one screen to enable a large screen display.

Japanese Patent Laid-Open No. 5-188340

  However, the projection display device as described above includes an imaging lens, a screen, and the like on the viewing side of the liquid crystal panel, and is bulky in the viewing direction (thickness direction) of the liquid crystal panel. Therefore, it is difficult to mount the projection type display device, for example, in the instrument panel or the meter case to be used as a display device for a vehicle.

  On the other hand, in a display device that directly displays an image of a liquid crystal panel without using a screen, when trying to enlarge the screen using a plurality of liquid crystal panels, a frame body portion is provided on the outer periphery of each liquid crystal panel. If there is a non-display part, the frame part remains as a joint in the large screen.

  In addition, in the display device for a vehicle when the screen is enlarged, it is desirable that the visibility of a distant part is taken into consideration in addition to a part relatively close to the liquid crystal panel from the viewer.

  In view of the above problems, an object of the present invention is to directly display an image of a flat panel display, and in the case of using a plurality of displays, the influence of the frame portion is reduced, and a sense of unity is further improved. An object of the present invention is to provide a display device that can form a large screen with excellent visibility.

  In order to achieve the above object, the present invention employs the following technical means.

In the present invention, the display device is mounted on a vehicle and formed by integrally combining a plurality of flat panel type indicators (111 to 113),
A frame portion (115) is provided on the outer periphery of each display surface (114) of the plurality of indicators (111 to 113),
A plurality of indicators (111 to 113) are arranged in one direction, and adjacent side surfaces (115a, 115b) of the frame body portion (115) are overlapped when viewed from the viewing side and adjacent display surfaces ( 114) are arranged to form an obtuse angle,
A viewing side surface (126) which is arranged on each display surface (114) side of the plurality of indicators (111 to 113) and is formed so as to connect both end portions (111a, 113a) in one direction. The prism (120) which has is provided.

  According to the present invention, since the adjacent side portions (115a, 115b) of the frame body portion (115) are arranged so as to overlap each other when viewed from the viewing side, one of the adjacent side portions (115a, 115b) Since the side part (115a) of the frame is hidden by the other side part (115b), the area where the side parts (115a, 115b) adjacent to the frame part (115) are visually recognized can be reduced. That is, in the case where a plurality of indicators (111 to 113) are simply arranged, a place where both the adjacent side portions (115a and 115b) (115a and 115b) of the frame body portion (115) are visually recognized is 1 Only one (115b) can be viewed.

  Next, a prism (120) having a viewing-side surface (126) formed so as to connect both end portions (111a, 113a) in one direction is provided on each display surface (114) side. Therefore, the light emitted from one display (111) is refracted by the prism (120) toward the other display (112) and reaches the viewing side. Therefore, for the region where adjacent side portions (115a, 115b) overlap, from the viewing side, the display content on one display (111) is the other display (112) side, that is, the remaining one Since the shape is viewed so as to be shifted toward the side (115b), the remaining one side (115b) can be made inconspicuous.

  As described above, in order to enlarge the screen using the plurality of displays (111 to 113), the adjacent side portions (115a and 115b) of the frame body portion (115) are overlapped, and further the prism (120) is provided. By using it, it is possible to make the adjacent side portions (115a, 115b) difficult to see, and it is possible to form a large screen with a sense of unity.

  Furthermore, since the plurality of displays (111 to 113) are arranged so that the display surfaces (114) of the adjacent displays (111 to 113) form an obtuse angle, as the overall shape of the display device (100), Both ends in the direction in which the plurality of indicators (111 to 113) are arranged can be shaped to wrap around the viewer. Therefore, visibility can be improved as compared with an arrangement in which a simple plane is formed by the plurality of indicators (111 to 113).

  In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment description mentioned later.

It is a perspective view which shows the whole structure of a display apparatus. It is a front view which shows a display apparatus. It is sectional drawing which shows the III-III part in FIG. It is explanatory drawing which shows the state in which the light generated from each liquid crystal display is refracted by a prism. It is an enlarged view which shows the V section in FIG.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also a combination of the embodiments even if they are not clearly specified unless there is a problem with the combination. It is also possible.

(First embodiment)
The display apparatus 100 in 1st Embodiment is demonstrated using FIGS. 1-5. The display device 100 according to the present embodiment is mounted on a vehicle and displays, for example, various vehicle information related to the vehicle. In the display device 100, a plurality of liquid crystal displays are integrally combined to form a display unit 110 having a large screen. The display device 100 includes a prism 120 in addition to the display unit 110. For example, in the vehicle instrument panel, the display device 100 is arranged so as to cover the entire vehicle in the left-right direction of the surface facing the driver (viewer). Yes.

  For example, three liquid crystal displays forming the display unit 110 are used. The three liquid crystal displays are the liquid crystal displays 111, 112, and 113. Each of the liquid crystal displays 111 to 113 corresponds to a flat panel display according to the present invention.

  Each of the liquid crystal displays 111 to 113 is a display that displays various vehicle information created by the control unit on each display surface 114 as a digital image to the driver. As each of the liquid crystal displays 111 to 113, for example, a thin film transistor (TFT) liquid crystal display using a thin film transistor is used. Here, the display surface 114 of each of the liquid crystal displays 111 to 113 is a horizontally long rectangle. The size of the rectangle is, for example, about 100 mm long × 180 mm wide.

  Each of the liquid crystal displays 111 to 113 is provided with a backlight that transmits and illuminates the liquid crystal displays 111 to 113 from the back side. The backlight includes a light emitter such as a light emitting diode and a diffusion plate, and illuminates the liquid crystal displays 111 to 113 evenly. Various kinds of vehicle information are emitted and displayed on the display surface 114 by the light emitted from the backlight and the liquid crystal displays 111 to 113. The background color of the display surface 114 is black, and various vehicle information set to a predetermined color is displayed on the black background.

  Here, various vehicle information includes, for example, basic information such as a vehicle speed value, an engine rotation value, an engine water temperature value, and a remaining fuel amount, an accumulated travel distance, a travel state (normal, eco, power state, etc.) , Vehicle information such as average fuel efficiency, cruising range, various cautions and warnings based on the occurrence of malfunctions, furthermore, the operating state of the car air conditioner, the position of the vehicle on the map by the car navigation device, purpose guidance, etc. There are various types of information that are displayed on each display surface 114. The various vehicle information is distributed and displayed in advance so as to have a predetermined arrangement on the display surfaces 114 of the three liquid crystal displays 111 to 113.

  A frame body 115 is provided on the outer periphery of the display surface 114 of each of the liquid crystal displays 111 to 113. The frame body 115 is formed so that a belt-like flat plate is disposed along the outer periphery of the display surface 114 as viewed from the driver side (viewing side) to form a square frame. The frame body 115 is formed of, for example, a black metal member or a black resin member.

  A plurality of attachment portions 116 for attaching the display portion 110 to an assembly portion in the vehicle instrument panel or a case for a display device are provided on the back side of each of the liquid crystal displays 111 to 113. ing.

  The display unit 110 includes a plurality of liquid crystal displays 111 to 113 arranged in one direction as viewed from the driver side. In this embodiment, one direction is the left-right direction of the vehicle, and three horizontally long display surfaces 114 are arranged in the left-right direction of the vehicle. At this time, it arrange | positions so that the adjacent side part of each frame part 115 may overlap to some extent seeing from a driver | operator side, and the adjacent display surface 114 may form an obtuse angle.

  The positional relationship between the liquid crystal displays 111 to 113 will be described in detail with reference to FIGS. As shown in FIG. 3 (plan view), the three liquid crystal displays 111 to 113 are arranged to be symmetrical.

  First, in the liquid crystal display 111 and the liquid crystal display 112, as shown in FIG. 5, the right end portion of the liquid crystal display 112 is disposed closer to the driver than the left end portion of the liquid crystal display 111. The adjacent side portions of the respective frame portions 115, that is, the side portions 115a and the side portions 115b are arranged so as to overlap to some extent when viewed from the driver side. And each display surface 114 of both the liquid crystal displays 111 and 112 is arrange | positioned so that the obtuse angle of about 160 degrees may be comprised, for example.

  Further, the liquid crystal display 112 and the liquid crystal display 113 are symmetrical with respect to the arrangement of the liquid crystal display 111 and the liquid crystal display 112. The overlapping of adjacent sides of the liquid crystal display 112 and the liquid crystal display 113 and the angle formed by each display surface 114 are the same as described above (FIG. 5). Therefore, as shown in FIG. 3 (plan view), the three liquid crystal displays 111 to 113 are arranged in an arc shape having a large radius of curvature as a whole.

  The prism 120 is formed of, for example, a transparent resin material (acrylic resin or the like) or a transparent glass material, and is formed and arranged so as to cover the entire display surface 114 side of each of the liquid crystal displays 111 to 113. It has become.

  As shown in FIGS. 1 and 3, the surfaces of the prism 120 on the liquid crystal displays 111 to 113 side have a shape along the display surfaces 114. That is, the flat portion 121 corresponding to the display surface 114 of the liquid crystal display 112 is formed, and the step is formed in a portion where the liquid crystal display 111 and the liquid crystal display 112 overlap and a portion where the liquid crystal display 112 and the liquid crystal display 113 overlap. The portions 122 and 123 are formed, and the flat portions 124 and 125 that are inclined so as to approach the driver side are formed at the left and right positions of the step portions 122 and 123, respectively.

  Further, the driver-side surface of the prism 120 is a curved surface portion 126 as follows. That is, the curved surface portion 126 passes through a position having a predetermined thickness from the display surface 114 in the center of the liquid crystal display 112 in the middle, and connects both end portions 111a and 113a of the liquid crystal displays 111 to 113 arranged in one direction. The surface is a gentle curved surface that is connected to the display surface 114 side. The radius of curvature R of the curved surface portion 126 is, for example, about 1000 mm in this embodiment. The curved surface portion 126 corresponds to the surface on the viewing side of the present invention.

  As described above, the prism 120 is a member having a crescent-shaped cross section in the horizontal direction, as indicated by hatching in FIG. Therefore, the curved surface portion 126 corresponding to the liquid crystal display 112 is substantially parallel to the display surface 114 of the liquid crystal display 112.

  In addition, the curved surface portion 126 corresponding to the liquid crystal display 111 has a large thickness dimension in the vicinity of the stepped portion 122, and the thickness dimension decreases toward the right end of the liquid crystal display 111. That is, the curved surface portion 126 corresponding to the liquid crystal display 111 is inclined with respect to the display surface 114 of the liquid crystal display 111 so as to approach the display surface 114 toward the right end.

  Further, the curved surface portion 126 corresponding to the liquid crystal display 113 has a large thickness dimension in the vicinity of the stepped portion 123, and the thickness dimension decreases toward the left end of the liquid crystal display 113. That is, the curved surface portion 126 corresponding to the liquid crystal display 113 is inclined with respect to the display surface 114 of the liquid crystal display 113 so as to approach the display surface 114 toward the left end.

  The operation of the display device 100 configured as described above will be described below.

  In the display device 100, the display unit 110 forms a large screen by the display surfaces 114 of the three liquid crystal displays 111 to 113, and displays various vehicle information during operation of the vehicle. The various vehicle information displayed is visually recognized by the driver through the transparent prism 120. 4 and 5, a plurality of lines extending from the display surface 114 to the driver side in the respective liquid crystal displays 111 to 113 schematically represent light lines (images of various vehicle information) emitted from the display surface 114. Is.

  In the present embodiment, as shown in FIG. 5, when viewed from the relationship between the liquid crystal display 111 and the liquid crystal display 112, the adjacent side portions 115 a and 115 b of the frame body portion 115 overlap each other when viewed from the driver side. Be placed. Therefore, since one side part 115a (anti-driver side) is hidden in the other side part 115b (driver side) among the adjacent side parts 115a and 115b, the adjacent side parts of the frame body part 115 The region where 115a and 115b are visually recognized can be reduced. That is, when a plurality of liquid crystal displays 111 to 113 are simply arranged, only one side 115b is visible where both sides 115a and 115b of adjacent sides 115a and 115b of the frame 115 are visible. Can be done.

  Next, a prism 120 having a gently curved surface that is disposed on each display surface 114 side and is recessed toward the display surface 114 side is provided, so that light emitted from the liquid crystal display 111 (the light in FIGS. 4 and 5). Line) is refracted by the prism 120 toward the liquid crystal display 112 and reaches the viewer side. Therefore, it is visually recognized from the driver side that the display content on the liquid crystal display 111 is shifted to the liquid crystal display 112 side, that is, the remaining one side 115b side with respect to the region where the adjacent side portions 115a and 115b overlap. Therefore, the remaining one side 115b can be made inconspicuous.

  The same applies to the relationship between the liquid crystal display 112 and the liquid crystal display 113. That is, the display content on the liquid crystal display 113 is visually recognized so as to be shifted toward the liquid crystal display 112 due to refraction.

  As described above, when the screen is enlarged using the plurality of liquid crystal displays 111 to 113, the adjacent side portions 115a and 115b of the frame body portion 115 are overlapped, and further, the prism 120 is used, thereby the adjacent side portions. 115a and 115b can be made difficult to see, and a large screen with a sense of unity can be formed.

  Furthermore, since the plurality of liquid crystal displays 111 to 113 are arranged so that the display surfaces 114 of the adjacent liquid crystal displays 111 to 113 form an obtuse angle, the plurality of liquid crystal displays 111 to 113 are formed as the overall shape of the display device 100. It can be made the shape where the both ends of the arranged direction wrap around the driver. Therefore, the visibility can be improved as compared with an arrangement in which a simple plane is formed by the plurality of liquid crystal displays 111 to 113.

  In the present embodiment, since the horizontally long liquid crystal displays are arranged in the left-right direction, a horizontally long large screen is possible, and the display device 100 is arranged over the entire left-right direction of the instrument panel of the vehicle. be able to.

(Other embodiments)
In the first embodiment, the three liquid crystal displays 111 to 113 have been described as being used. However, the present invention is not limited to this, and two or four or more cases may be used.

  In the first embodiment, the surface on the viewing side of the prism 120 is the curved surface portion 126 having a gentle curved surface that is recessed toward the display surface 114 side, but is not limited to this. The surface on the viewing side may be a surface formed so as to connect both end portions 111a and 113a of the plurality of liquid crystal displays 111 to 113. For example, the curved surface portion 126 is a plurality of flat surfaces with respect to the curved surface portion 126. Or a flat surface connecting both end portions 111a and 113a, or a convex surface connecting both end portions 111a and 113a and projecting to the viewing side.

  Moreover, in the said 1st Embodiment, although the several liquid crystal displays 111-113 were arranged in the left-right direction, you may arrange not only this but in the up-down direction. In this case, for example, a display device in which a plurality of liquid crystal displays are arranged in the vertical direction is arranged at a position toward the shift lever from the surface facing the driver of the instrument panel at the center of the vehicle, thereby increasing the length of the display device. A screen display device can be provided.

  Further, in the first embodiment, the liquid crystal display 112 is disposed on the driver side with respect to the liquid crystal displays 111 and 113 in the portions where the liquid crystal displays 111 to 113 overlap. 113 may be arranged on the driver side.

  Further, as the flat panel type display, instead of the TFT liquid crystal displays (111 to 113), other types of displays such as an organic EL display composed of a layered structure using an organic compound are used. It is good to have. For example, the organic EL display has an excellent display function in a low temperature environment, and is suitable for use in such an environment.

100 Display device 111-113 Liquid crystal display (display)
111a, 113a Ends in one direction 114 Display surface 115 Frame portions 115a, 115b Adjacent sides 120 Prism 126 Curved surface (viewing side surface)

Claims (2)

A display device mounted on a vehicle and formed by integrally combining a plurality of flat panel displays (111 to 113),
A frame portion (115) is provided on the outer periphery of each display surface (114) of the plurality of indicators (111 to 113),
A plurality of the indicators (111 to 113) are arranged in one direction, and the adjacent side portions (115a, 115b) of the frame body portion (115) overlap each other when viewed from the viewing side and are adjacent to each other. The display surface (114) is arranged to form an obtuse angle;
Surfaces on the viewing side that are arranged on the display surface (114) side of each of the plurality of indicators (111 to 113) and are formed so as to connect both end portions (111a, 113a) in the one direction. 126) A display device comprising a prism (120) having 126). Each display surface (114) of each of the plurality of indicators (111 to 113) is a horizontally long rectangle,
The display device according to claim 1, wherein the one direction is a left-right direction.

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