JP2010032874A - Display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus capable of performing a stereoscopic display in a high definition. <P>SOLUTION: The display apparatus includes: a first liquid crystal display apparatus (first display section) 2 configured to display information; a second liquid crystal display device (second display section) 3 configured to display information and provided within the range of a predetermined angle relative to the first liquid crystal display device 2; and a reflecting member 4 configured to allow passage of information displayed on the first liquid crystal display apparatus 2 and to reflect information displayed on the second liquid crystal display device 3 toward the direction in which information displayed by the first liquid crystal display device 2 is displayed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device that displays information such as characters and images, and more particularly to a display device configured to display information three-dimensionally.

  In recent years, display devices that can display information such as characters and images three-dimensionally (three-dimensionally) have been developed and put into practical use.

In the conventional display device as described above, for example, as described in Patent Document 1 below, the first and second liquid crystal display plates are provided in the housing in a state of being in contact with each other. There has been proposed one in which different information is displayed on two liquid crystal display panels. In this conventional display device, a mirror is installed in another housing provided at a predetermined angle with respect to the housing, and information displayed on the two liquid crystal display panels is displayed on the mirror. It is shown. In this conventional display device, the user can visually display the information while displaying the information three-dimensionally by visually recognizing the information displayed on the mirror without directly viewing the liquid crystal display panel. It was.
Japanese Utility Model Publication No. 58-51783

  However, in the conventional display device as described above, since the first and second liquid crystal display panels (display units) are provided in contact with each other, the information displayed by each of these liquid crystal display panels is displayed. It was difficult to give a sense of depth. For this reason, the conventional display device has a problem that it is difficult to perform stereoscopic display with high quality.

  In view of the above problems, an object of the present invention is to provide a display device that can perform stereoscopic display with high quality.

In order to achieve the above object, a display device according to the present invention includes a first display unit configured to display information,
A second display unit configured to display information and provided at an angle within a predetermined angle range with respect to the first display unit;
It is provided so as to allow passage of information displayed on the first display unit, and is displayed on the second display unit on the display direction side of information displayed on the first display unit. And a reflecting member that reflects the information that is present.

  In the display device configured as described above, the reflecting member is provided so as to allow passage of information displayed on the first display unit. Further, the reflecting member is configured to reflect the information displayed on the second display unit on the display direction side of the information displayed on the first display unit. Thereby, a sense of depth can be given to the information displayed on the second display unit. As a result, unlike the conventional example, it is possible to configure a display device that can perform stereoscopic display with high quality.

The display device further includes a display control unit that performs drive control of the first and second display units using the input video signal,
The display control unit performs on / off control of the second display unit to display the normal display based on the information displayed on the first display unit and the first and second display units. It is preferable to switch between stereoscopic display based on a combination of information.

  In this case, the display control unit can easily perform appropriate display of information by switching between the normal display and the stereoscopic display.

  In the display device, it is preferable that the first and second display units include a liquid crystal panel.

  In this case, the first and first display units can be easily reduced in size and weight, and a compact display device can be easily configured.

In the display device, the reflection member is provided in parallel with the display surface so as to cover the display surface of the first display unit.
The reflective member may have a transmittance of 75% or more and a reflectance of 5% or more on the surface facing the display surface of the second display unit.

  In this case, the information displayed on the first display unit can be surely passed and visually recognized, and the information displayed on the second display unit can be reliably reflected and visually recognized. it can.

  Moreover, the said display apparatus WHEREIN: The polarizing plate in the liquid crystal panel contained in the said 1st display part may be sufficient as the said reflection member.

  In this case, since the reflecting member and the polarizing plate are used together, the number of parts of the display device can be reduced.

  In the above display device, the polarizing plate preferably has a haze value of 5% or less.

  In this case, the information displayed on the first display unit can be surely passed and visually recognized.

  In the display device, it is preferable that a display surface of the second display unit is set to a size larger than a display surface of the first display unit.

  In this case, the information displayed on the second display unit can be surely superimposed on the information displayed on the first display unit.

  In the display device, it is preferable that the first and second display portions are provided to be tiltable with respect to each other.

  In this case, high-quality stereoscopic display can be easily performed.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the display apparatus which can perform a three-dimensional display with high quality.

  Hereinafter, preferred embodiments of a display device of the present invention will be described with reference to the drawings. In addition, the dimension of the structural member in each figure does not represent the dimension of an actual structural member, the dimension ratio of each structural member, etc. faithfully.

[First Embodiment]
FIG. 1 is a diagram for explaining a display device according to a first embodiment of the present invention. In the figure, a display device 1 according to the present embodiment includes a first liquid crystal display device 2 as a first display unit and a second liquid crystal display device 3 as a second display unit. The display device 1 is provided with a reflecting member 4 provided in parallel with the display surface 2A so as to cover the display surface 2A of the first liquid crystal display device 2. In the display device 1, as will be described in detail later, the information displayed on the first and second liquid crystal display devices 2 and 3 can be overlapped with each other so that the user can visually recognize them. Yes.

  Here, the first and second liquid crystal display devices 2 and 3 will be described in detail with reference to FIGS.

  FIG. 2 is a diagram for explaining a main configuration of the first liquid crystal display device shown in FIG. 1, and FIG. 3 is a diagram for explaining a main configuration of the second liquid crystal display device shown in FIG. FIG. 4 is a plan view showing each display surface of the first and second liquid crystal display devices.

  As shown in FIG. 2, the first liquid crystal display device 2 is disposed on the liquid crystal panel 8 and the non-display surface side (lower side in FIG. 2) of the liquid crystal panel 8 and illuminates the liquid crystal panel 8. Is provided.

  The liquid crystal panel 8 includes a CF (Color Filter) substrate 10 and an array substrate 11 constituting a pair of substrates, and polarizing plates 12 and 13 provided on outer surfaces of the CF substrate 10 and the array substrate 11, respectively. . A liquid crystal layer (not shown) is sandwiched between the CF substrate 10 and the array substrate 11. The polarizing plates 12 and 13 are bonded to the corresponding CF substrate 10 or array substrate 11 so as to cover at least the effective display area of the liquid crystal panel 8 (that is, the display surface 2A). In addition, the reflecting member 4 is provided in parallel above the polarizing plate 12 so as to cover the polarizing plate 12 at a predetermined distance.

  The CF substrate 10 and the array substrate 11 are made of a transparent synthetic resin such as a flat acrylic resin or a transparent glass material. The array substrate 11 constitutes one of the pair of substrates. In the array substrate 11, pixel electrodes and TFTs (Thin Films) are formed according to a plurality of pixels included in the display surface of the liquid crystal panel 8. Transistor) or the like is formed between the liquid crystal layer (not shown). On the other hand, the CF substrate 10 constitutes the other of the pair of substrates, and a color filter, a counter electrode, and the like are formed between the CF substrate 10 and the liquid crystal layer (not shown). .

  In addition, the liquid crystal panel 8 is provided with an FPC (Flexible Printed Circuit) 14 connected to a control unit (described later) that controls driving of the liquid crystal panel 8, and the liquid crystal panel operates by operating the liquid crystal layer on a pixel basis. The display surface 8 is driven in units of pixels, and a desired image is displayed on the display surface.

  The illuminating device 9 is of an edge light type and includes a cold cathode fluorescent tube 15 as a light source and a light guide plate 16 disposed to face the cold cathode fluorescent tube 15. In the lighting device 9, the cold cathode fluorescent tube 15 and the light guide plate 16 are sandwiched by the bezel 20 having an L-shaped cross section in a state where the liquid crystal panel 8 is installed above the light guide plate 16. A case 17 is placed on the CF substrate 10. Thereby, the illuminating device 9 is assembled to the liquid crystal panel 8 and integrated as a transmissive liquid crystal display device 2 in which the illumination light from the illuminating device 9 enters the liquid crystal panel 8.

  For the light guide plate 16, for example, a synthetic resin such as a transparent acrylic resin is used, and light from the cold cathode fluorescent tube 15 enters. On the side of the light guide plate 16 opposite to the liquid crystal panel 8 (opposite surface side), a reflection sheet 18 is installed. Further, an optical sheet 19 such as a lens sheet or a diffusion sheet is provided on the liquid crystal panel 8 side (light emitting surface side) of the light guide plate 16, and the inside of the light guide plate 16 has a predetermined light guide direction (left side in FIG. 2). The light from the cold cathode fluorescent tube 15 guided in the direction from the right side to the right side is changed to the planar illumination light having a uniform luminance and applied to the liquid crystal panel 8.

  As shown in FIG. 3, the second liquid crystal display device 3, like the first liquid crystal display device 2, has a liquid crystal panel 21 and a non-display surface side (lower side in FIG. 3) of the liquid crystal panel 21. An illumination device 22 that is disposed and generates illumination light that illuminates the liquid crystal panel 21 is provided.

  The liquid crystal panel 21 includes a CF (Color Filter) substrate 23 and an array substrate 24 constituting a pair of substrates, and polarizing plates 25 and 26 provided on the outer surfaces of the CF substrate 23 and the array substrate 24, respectively. . A liquid crystal layer (not shown) is sandwiched between the CF substrate 23 and the array substrate 24. The polarizing plates 25 and 26 are bonded to the corresponding CF substrate 23 or array substrate 24 so as to cover at least the effective display area of the liquid crystal panel 21 (that is, the display surface 3A).

  The CF substrate 23 and the array substrate 24 are made of a transparent synthetic resin such as a flat acrylic resin or a transparent glass material. The array substrate 24 constitutes one of the pair of substrates. In the array substrate 24, pixel electrodes and TFTs (Thin Films) are formed according to a plurality of pixels included in the display surface of the liquid crystal panel 21. Transistor) or the like is formed between the liquid crystal layer (not shown). On the other hand, the CF substrate 25 constitutes the other substrate of the pair of substrates, and a color filter, a counter electrode, and the like are formed between the CF substrate 25 and the liquid crystal layer (not shown). .

  In addition, the liquid crystal panel 21 is provided with an FPC (Flexible Printed Circuit) 27 connected to a control unit (described later) that controls driving of the liquid crystal panel 21, and the liquid crystal panel operates by operating the liquid crystal layer in units of pixels. The display surface 21 is driven in units of pixels, and a desired image is displayed on the display surface.

  The illuminating device 22 is of an edge light type, and includes a cold cathode fluorescent tube 28 as a light source and a light guide plate 29 disposed to face the cold cathode fluorescent tube 28. In the lighting device 22, the cold cathode fluorescent tube 28 and the light guide plate 29 are sandwiched by the bezel 33 having an L-shaped cross section in a state where the liquid crystal panel 21 is installed above the light guide plate 29. A case 30 is placed on the CF substrate 23. Thereby, the illuminating device 22 is assembled to the liquid crystal panel 21 and integrated as a transmissive liquid crystal display device 3 in which the illumination light from the illuminating device 22 is incident on the liquid crystal panel 21.

  For the light guide plate 29, for example, a synthetic resin such as a transparent acrylic resin is used, and light from the cold cathode fluorescent tube 28 enters. On the opposite side (opposite surface side) of the light guide plate 29 to the liquid crystal panel 21, a reflection sheet 31 is provided. In addition, an optical sheet 32 such as a lens sheet or a diffusion sheet is provided on the liquid crystal panel 21 side (light emitting surface side) of the light guide plate 29, and the inside of the light guide plate 29 has a predetermined light guide direction (left side in FIG. 3). The light from the cold cathode fluorescent tube 28 guided in the direction from the right side to the right side is changed to the planar illumination light having a uniform luminance and applied to the liquid crystal panel 21.

  In the first and second liquid crystal display devices 2 and 3, as shown in FIG. 4, the display surface 3 </ b> A of the second liquid crystal display device 3 is larger than the display surface 2 </ b> A of the first liquid crystal display device 2. It is configured. Thereby, in the display device 1 of the present embodiment, the information displayed on the second liquid crystal display device 3 can be surely superimposed on the information displayed on the first liquid crystal display device 2. It is like that.

  Returning to FIG. 1, in the display device 1 of the present embodiment, the first and second liquid crystal display devices 2 and 3 are provided so as to be tiltable relative to each other. That is, these liquid crystal display devices 2 and 3 are connected via a connection mechanism (not shown), and the first and second liquid crystal display devices 2 and 3 include the first liquid crystal display device 2 and the reflecting member. 4 is configured to be able to change the relative angle in a state where a predetermined distance is maintained. Specifically, in the first and second liquid crystal display devices 2 and 3, the relative angle θ between the display surface 2 </ b> A and the display surface 3 </ b> A is an angle within a range of approximately 0 degrees to approximately 180 degrees. It is comprised so that it can tilt mutually. That is, in the first and second liquid crystal display devices 2 and 3, the display surface 3A, the display surface 2A, and the reflecting member 4 can be deformed from a substantially close state to a state in which the display surface 2A and the display surface 3A are substantially parallel. It is configured.

  The reflecting member 4 is provided so as to allow the information displayed on the first liquid crystal display device 2 to pass, and the reflection member 4 is arranged on the display direction side of the information displayed on the first liquid crystal display device 2. The information displayed on the second liquid crystal display device 3 is reflected. That is, in the display device 1 according to the present embodiment, the second liquid crystal display device 3 has an angle (for example, 30) within a predetermined angle range (for example, 30 degrees or more and less than 90 degrees) with respect to the first liquid crystal display device 2. The information displayed on each of the first and second liquid crystal display devices 2 and 3 can be superimposed on each other so that the user can visually recognize them.

  Specifically, in the display device 1 of the present embodiment, the information displayed on the first liquid crystal display device 2 passes through the reflecting member 4 as shown by the arrow g1 in FIG. Visible to. On the other hand, after the information displayed on the second liquid crystal display device 3 is displayed toward the reflecting member 4 as indicated by an arrow g2 in FIG. 1, the reflecting member 4 causes the arrow g2 in FIG. As shown by ', it is reflected and visually recognized by the user. Thereby, in the display device 1 of the present embodiment, the information displayed on the first and second liquid crystal display devices 2 and 3 can be superimposed and visually recognized as one composite image.

  Further, in the display device 1 of the present embodiment, the information displayed on the second liquid crystal display device 3 is visually recognized by the user after being reflected by the reflecting member 4, and thus the first and second liquid crystal display devices. An optical path difference can be generated for the information displayed in 2 and 3 before being visually recognized by the user. That is, the information displayed on the second liquid crystal display device 3 is configured to have a longer distance until the user visually recognizes the information than the information displayed on the first liquid crystal display device 2. Yes. For this reason, in the display device 1 of the present embodiment, the second liquid crystal display device 3 in the three-dimensional display by the combination of information displayed on the first and second liquid crystal display devices 2 and 3, that is, in the composite image. It is possible to display a three-dimensional information by giving a sufficient sense of depth to the information displayed in.

  Further, the reflecting member 4 has a transmittance of 75% or more, and has a characteristic that the reflectance of the surface facing the display surface of the second display unit is 5% or more, such as a glass material or plastic. These synthetic resins are used. Thereby, in the display device 1 of the present embodiment, the information displayed on the first liquid crystal display device 2 can be surely passed and visually recognized and displayed on the second liquid crystal display device 3. The reflected information can be reflected and made visible.

  Further, the display device 1 of the present embodiment is provided with the control unit 5 that performs overall drive control of the first and second liquid crystal display devices 2 and 3. The controller 5 includes a display controller 6 having a first display controller 6a and a second display controller 6b, and a lighting controller 7 having a first lighting controller 7a and a second lighting controller 7b. It has.

  The display control unit 6 performs drive control of the liquid crystal panels 8 and 21 included in the first and second liquid crystal display devices 2 and 3 using a video signal input from the outside. That is, the first and second display control units 6a and 6b are configured to perform drive control of the liquid crystal panels 8 and 21, respectively, using the input video signal.

  In addition, the lighting control unit 7 performs drive control of the lighting devices 9 and 22 included in the first and second liquid crystal display devices 2 and 3 using a dimming instruction signal input from the outside. ing. That is, the first and second lighting control units 7a and 7b are configured to perform drive control of the illumination devices 9 and 22 using the input dimming instruction signal, respectively.

  Further, in the control unit 5, the display control unit 6 performs on / off control of the liquid crystal panel 8 of the second liquid crystal display device 3, thereby performing normal display based on information displayed on the first liquid crystal display device 2, The first and second liquid crystal display devices 2 and 3 are configured to be able to switch between stereoscopic display based on a combination of information displayed on the display. That is, in the display device 1 of the present embodiment, the control unit 5 can cause the first liquid crystal display device 2 to function as a main display unit and display information only by the first liquid crystal display device 2. it can. Further, the control unit 5 causes the first liquid crystal display device 2 to function as a sub display unit and combines information displayed on the first and second liquid crystal display devices 2 and 3 (that is, information (that is, (Composite image including three-dimensional information display) can be displayed. As described above, in the display device 1 of the present embodiment, it is possible to easily perform appropriate display of information by switching between the normal display and the stereoscopic display.

  Further, the control unit 5 controls the display when the relative angle θ between the display surface 2A and the display surface 3A is 90 degrees or more in the first and second liquid crystal display devices 2 and 3. The unit 6 and the lighting control unit 7 drive and control the first and second liquid crystal display devices 2 and 3 independently to display, for example, two different information on the display surfaces 2A and 3A. Can be done.

  In the display device 1 of the present embodiment configured as described above, the reflecting member 4 is provided so as to allow passage of information displayed on the first liquid crystal display device (first display unit) 2. Yes. The reflecting member 4 reflects the information displayed on the second liquid crystal display device (second display unit) 3 on the display direction side of the information displayed on the first liquid crystal display device 2. It is configured. Thereby, in the display device 1 of the present embodiment, it is possible to give a sense of depth to the information displayed on the second liquid crystal display device 3. As a result, in the present embodiment, unlike the conventional example, it is possible to configure the display device 1 that can perform stereoscopic display with high quality.

  Further, in the display device 1 of the present embodiment, the first and second liquid crystal display devices 2 and 3 are provided so as to be tiltable with respect to each other, so that the display surfaces 2A and 3A of the respective liquid crystal display devices 2 and 3 are provided. The relative angle can be easily changed. As a result, the display device 1 of the present embodiment can easily perform high-quality stereoscopic display.

[Second Embodiment]
FIG. 5 is a diagram for explaining a display device according to a second embodiment of the present invention, and FIG. 6 is a diagram for explaining a main configuration of the first liquid crystal display device shown in FIG. In the figure, the main difference between the present embodiment and the first embodiment is that the polarizing plate in the liquid crystal panel included in the first liquid crystal display device is also used as a reflecting member. In addition, about the element which is common in the said 1st Embodiment, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.

  That is, as shown in FIG. 5, in the display device 1 of the present embodiment, the first liquid crystal display device 2 ′ as the first display unit is provided to be tiltable with respect to the second liquid crystal display device 3. ing. Further, in the display device 1 of the present embodiment, as indicated by arrows g2 and g2 ′ in FIG. 5, information displayed on the second liquid crystal display device 3 is displayed on the first liquid crystal display device 2 ′. The surface 2A ′ is 8 so as to be reflected toward the display direction side of the information displayed on the first liquid crystal display device 2.

  Specifically, in FIG. 6, in the liquid crystal panel 8 of the first liquid crystal display device 2 ′, a polarizing plate 34 is installed on the display surface 2 </ b> A ′ side. Those capable of reflecting the information displayed on the display device 3 are selected. More specifically, the polarizing plate 34 is a clear polarizing plate that has not been subjected to a low reflection treatment so that the information displayed on the second liquid crystal display device 3 can be reliably reflected. It has become. The polarizing plate 34 has a haze value of 5% or less. Thereby, in the display apparatus 1 of this embodiment, the information currently displayed on the 1st liquid crystal display device 2 can be made to pass reliably and can be visually recognized.

  With the above configuration, the display device 1 of the present embodiment can achieve the same operations and effects as those of the first embodiment. In this embodiment, since the polarizing plate 34 is also used as a reflecting member, the number of parts of the display device 1 can be reduced.

  The above embodiments are all illustrative and not restrictive. The technical scope of the present invention is defined by the claims, and all modifications within the scope equivalent to the configurations described therein are also included in the technical scope of the present invention.

  For example, in the above description, a case where a transmissive liquid crystal display device having an edge light type illumination device is used for each of the first and second display portions has been described. However, the first and second embodiments of the present invention are described. Each display unit is not limited as long as it is configured to display information. Specifically, for example, a transflective liquid crystal display device having a direct illumination device, a reflective liquid crystal display device, a plasma display panel, an organic EL (electroluminescence), a CRT, or the like is used for the first and second types. It can be applied to each display unit.

  However, when each of the first and second display units includes a liquid crystal panel as in the above-described embodiments, the first and second display units can be easily reduced in size and weight. This is preferable in that a compact display device can be easily configured.

  The present invention is useful for a display device capable of high-quality stereoscopic display.

It is a figure explaining the display apparatus concerning the 1st Embodiment of this invention. It is a figure explaining the principal part structure of the 1st liquid crystal display device shown in FIG. It is a figure explaining the principal part structure of the 2nd liquid crystal display device shown in FIG. It is a top view which shows each display surface of the said 1st and 2nd liquid crystal display device. It is a figure explaining the display apparatus concerning the 2nd Embodiment of this invention. It is a figure explaining the principal part structure of the 1st liquid crystal display device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2, 2 '1st liquid crystal display device (1st display part)
2A, 2A 'display surface 3 2nd liquid crystal display device (2nd display part)
3A Display surface 4 Reflective member 5 Control unit 6 Display control unit 7 Lighting control unit 34 Polarizing plate (reflective member)

Claims (8)

A first display configured to be able to display information;
A second display unit configured to display information and provided at an angle within a predetermined angle range with respect to the first display unit;
It is provided so as to allow passage of information displayed on the first display unit, and is displayed on the second display unit on the display direction side of information displayed on the first display unit. And a reflective member that reflects the information that is present. A display control unit that performs drive control of each of the first and second display units using the input video signal,
The display control unit performs on / off control of the second display unit to display the normal display based on the information displayed on the first display unit and the first and second display units. The display device according to claim 1, wherein the display is switched to a stereoscopic display based on a combination of information. The display device according to claim 1, wherein each of the first and second display units includes a liquid crystal panel. The reflective member is provided in parallel with the display surface so as to cover the display surface of the first display unit,
The said reflecting member has a transmittance | permeability of 75% or more, and the reflectance of the surface which opposes the display surface of a said 2nd display part is 5% or more. A display device according to any one of the above. The display device according to claim 3, wherein the reflection member is a polarizing plate in a liquid crystal panel included in the first display unit. The display device according to claim 5, wherein the polarizing plate has a haze value of 5% or less. The display device according to claim 1, wherein a display surface of the second display unit is set to a size larger than a display surface of the first display unit. The display device according to claim 1, wherein the first and second display units are provided to be tiltable with respect to each other.

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