JP2006277739A - Electrooptical device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow display of an electrooptical device to be clearly seen and to allow maintenance work such as repair and replacement for an input device to be easily carried out, in an electrooptical device and an electronic apparatus equipped with an input device such as a touch panel. <P>SOLUTION: A liquid crystal display device 1 has a liquid crystal panel 4 for displaying an image on a display screen 16, and a touch panel 31 equipped with a planar input area Vi having translucency. The touch panel 31 is openably and closably supported to the liquid crystal panel 4 by a packaging case 32 and a hinge part 49. The touch panel 31 can cover the display screen 16 at the closed position P2. The touch panel 31 can expose the display screen 16 to the outside at the opened position P1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electro-optical device such as a liquid crystal display device. The present invention also relates to an electronic apparatus configured using the electro-optical device.

  Currently, electro-optical devices such as liquid crystal display devices are widely used in various electronic devices such as mobile phones and portable information terminals. For example, an electro-optical device is used to display various information related to electronic equipment as an image. The electro-optical device generally has an electro-optical panel that constitutes a display unit, and the electro-optical panel controls an optical output by controlling an electrical input to perform display.

  2. Description of the Related Art Conventionally, electronic devices using the above electro-optical device are known that use a touch panel as input means. This touch panel is formed, for example, by bonding a substrate made of translucent plastic or the like and a translucent film to each other with a predetermined gap. This touch panel is usually installed on the display surface of the electro-optical panel so that the above film becomes the surface on the front side.

  The substrate and the film bonded to each other on the touch panel have electrodes on surfaces facing each other, for example. When the operator presses an appropriate position of the film using an input device such as a pen-type device or by the operator's own finger, the pair of electrodes come into contact with each other at the pressed position. In this case, if a predetermined voltage is applied between these electrodes, the pair of electrodes are short-circuited, that is, short-circuited at the contact position.

  When a pair of electrodes is short-circuited in this way, the voltage applied between the electrodes changes according to the short-circuited position, so if the voltage change is detected, it is possible to know which position on the film has been pressed. it can. Conventionally, this touch panel has been pasted on a display surface of a liquid crystal display device provided in an appropriate place such as a portable information terminal as an electronic device in a state where it cannot be easily removed (for example, Patent Document 1 or Patent Document 2).

Japanese Patent Laid-Open No. 9-0662198 (page 4, FIG. 1) Japanese Patent Laid-Open No. 9-065437 (page 4, FIG. 1)

  By the way, in the electronic device such as the portable information terminal disclosed in Patent Document 1 or Patent Document 2, the touch panel is fixedly attached to the display surface of the liquid crystal display device. It was always observed through the touch panel. For this reason, there is a possibility that the display of the electro-optical device may be difficult to see due to the reason that light incident on the electronic device from the observer side is reflected by the touch panel. In addition, when the touch panel is damaged due to an impact on the electronic device, it is necessary to repair or replace the touch panel. However, it is very difficult to repair or replace the touch panel.

  The present invention has been made in view of the above problems, and in an electro-optical device and an electronic apparatus provided with input means such as a touch panel, it is possible to clearly see the display of the electro-optical device, and the input It is intended to facilitate maintenance work such as repair and replacement of means. Another object is to add a mirror function to the electro-optical device and the electronic apparatus.

  A first electro-optical device according to the present invention includes an electro-optical panel for displaying an image on a display surface, input means having a planar input area having translucency, and support means for supporting the input means. The support means supports the input means so that it can be opened and closed between a closed position that covers the display surface and an open position that exposes the display surface to the outside.

  In the above configuration, the electro-optical panel is a panel structure that can change an optical output state by controlling an electrical input condition. The electro-optical panel is a panel structure including an electro-optical material such as liquid crystal, and realizes display using the electro-optical action of the electro-optical material. The electro-optical panel is formed, for example, by placing an electro-optical material on a substrate made of glass or the like, or encapsulating an electro-optical material between a pair of substrates. If, for example, liquid crystal is used as the electro-optical material, a liquid crystal panel as an electro-optical panel is configured.

  The input means can be configured using electrical elements and optical elements. For example, if the input device in the present invention is configured by using an input device called a resistance film type touch panel, the input device has a first substrate, a first substrate facing the first substrate, and a gap. It has the 2nd board | substrate provided in space, and the surface electrode provided in the surface which mutually opposes among those board | substrates.

  When the horizontal direction of the input area of the input means is the X direction and the vertical direction perpendicular to the X direction is the Y direction, an appropriate place on the surface of the second substrate is pushed by an input device such as a pen-type input device at the pressing point. The coordinate values (X, Y) of the pressing point can be detected by bringing both surface electrodes into contact and measuring the resistance value in the X direction and the Y direction of the surface electrode at the contact point.

  Conventionally, such input means has been fixedly attached to the display surface of the electro-optical panel. Therefore, the observer always observed the display on the display surface through the input means. At the time of this observation, there is a fear that the image displayed on the display surface of the electro-optical panel is difficult to see due to reflection of light from the outside by the input means.

  In this regard, according to the first electro-optical device configured as described above, since the input unit is configured to be openable and closable with respect to the electro-optical panel, the input unit can be placed at a position covering the display surface of the electro-optical panel. Alternatively, the input means can be placed at a position where the display surface is opened. For example, when an input operation is performed using the input unit, the input operation can be performed by covering the display surface of the electro-optical panel with the input unit, that is, by placing the input unit in the closed position. On the other hand, when it is desired to observe the display without using the input means, the input means is opened to the open position to expose the display surface to the outside. By doing so, it is possible to prevent the display of the electro-optical panel from becoming difficult to see due to light being reflected by the input means.

  In addition, since an input device such as a pen is in direct contact with the input unit according to the present invention, the input unit is easily damaged as compared with other elements constituting the electro-optical device. However, since the conventional input means is fixedly pasted on the display surface of the electro-optical panel, it is difficult to perform so-called maintenance work such as repair or replacement when the input means is damaged.

  On the other hand, according to the first electro-optical device according to the present invention, the input means can be carried to an open position away from the display surface of the electro-optical panel, so that the maintenance work can be easily performed at the open position. It can be carried out. In addition, it is possible to easily replace the damaged input unit with a normal input unit.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure, the support means relatively moves the input means and the electro-optical panel about an axis parallel to the display surface. It is desirable to support the input means so that it can be opened and closed by rotating it. The relative rotation of the input unit and the electro-optical panel about the axis parallel to the display surface means that the electro-optical device is folded about the axis. When the electro-optical device is folded in this way, the input means can be easily opened and closed with respect to the display surface of the electro-optical panel.

  Next, in the first electro-optical device according to the present invention having a folding structure opening / closing structure, the support means includes an input means case for accommodating the input means, and a panel case for accommodating the electro-optical panel. And a connecting means for connecting the input case and the panel case, the connecting means having the axis parallel to the display surface as a center, the input means case and the panel case It is desirable to support the input means so as to be openable and closable by relatively rotating them.

  Since the electro-optical panel is generally formed using a substrate made of translucent glass or the like, the substrate may be damaged when the input unit is directly attached to the electro-optical panel. Further, if the support means is directly formed on the substrate, the structure of the electro-optical panel may be complicated. Therefore, it is considered difficult to directly attach the input means to the electro-optical panel. In addition, the electro-optical panel is preferably accommodated in a panel case in order to protect the electro-optical panel. Also, the input means is preferably accommodated in the case for the input means for the same reason as the electro-optical panel. From these facts, it is realistic to connect the input means case containing the input means and the panel case containing the electro-optical panel by the connecting means.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure, the support means relatively connects the input means and the electro-optical panel about an axis perpendicular to the display surface. It is desirable to support the input means so that it can be opened and closed by rotating it. To rotate the input unit and the electro-optical panel relative to each other about the axis perpendicular to the display surface means to turn the input unit with respect to the electro-optical panel. By turning the input means in this way, the input means can be easily opened and closed with respect to the display surface of the electro-optical panel.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure having a turning structure, the support means includes an input means case for accommodating the input means, and a panel case for accommodating the electro-optical panel. And a connecting means for connecting the input case and the panel case, the connecting means having the axis perpendicular to the display surface as a center and the input means case and the panel case It is desirable to support the input means so as to be openable and closable by relatively rotating them. In this way, the electro-optical panel can be protected by the panel case. Further, the input means can be protected by the input means case. Further, the structure of the support means can be simplified by connecting the panel case and the input means case by the connecting means.

  Next, in the first electro-optical device according to the present invention having a folding structure opening / closing structure or a turning structure opening / closing structure, the support means is integrated with one of the electro-optical panel or the input means, and A shaft member extending along an axis, a hole that is integral with the other of the electro-optical panel or the input means and fits into the shaft member, and provided in the shaft member, the electro-optical panel or the input means A first terminal electrically connected to one of the two terminals, and a second terminal provided in the hole and electrically connected to the other of the electro-optical panel or the input means, the first terminal and the first It is desirable that the electro-optical panel and the input unit are electrically connected by contacting two terminals. By doing so, the electro-optical panel and the input means can be reliably conductively connected. Further, since it is not necessary to separately provide a portion for conducting the electro-optical panel and the input means, the structure of the electro-optical device can be simplified.

  Next, in the first electro-optical device according to the present invention including a connection unit, the connection unit is integrated with one of the electro-optical panel or the input unit and extends along the axis. A hole that is integral with the other of the electro-optical panel or the input means and fits into the shaft member, and a first that is provided in the shaft member and is electrically connected to one of the electro-optical panel or the input means. A terminal and a second terminal provided in the hole and electrically connected to the other of the electro-optical panel or the input means, and the first terminal and the second terminal are in contact with each other, It is desirable that the electro-optical panel and the input means are electrically connected. By doing so, the electro-optical panel and the input means can be reliably conductively connected. Further, since it is not necessary to separately provide a portion for conducting the electro-optical panel and the input means, the structure of the electro-optical device can be simplified.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure, the support means can open and close the input means by relatively translating the input means and the electro-optical panel. It is desirable to support it. The relative movement of the input unit and the electro-optical panel means that the input unit is slid relative to the electro-optical panel. By sliding the input unit in this way, the input unit can be easily opened and closed with respect to the display surface of the electro-optical panel.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure having a parallel movement structure, the support means includes an input means case for accommodating the input means, and a panel for accommodating the electro-optical panel. And a connecting means for connecting the input case and the panel case. The connecting means relatively translates the input means case and the panel case by moving the input means case and the panel case. It is desirable to support the input means so that it can be opened and closed. In this way, the electro-optical panel can be protected by the panel case. Further, the input means can be protected by the input means case. Further, the structure of the support means can be simplified by connecting the panel case and the input means case by the connecting means.

  Next, in the first electro-optical device according to the present invention having an opening / closing structure, the input unit is in a power-on state when in the closed position, and is in a power-off state when in the open position. It is desirable. In the power-on state, power is supplied to the input means so that the input means can perform an operation of receiving an input. On the other hand, in the power-off state, the power to the input unit is cut off, and the input unit cannot perform an operation of receiving an input. In this way, if the input device is switched between the power-on state and the power-off state according to the position of the input means, the input means can be operated only when necessary. Thereby, power consumption in the input means can be reduced.

  The electro-optical device preferably includes a reflective polarizer that is supported by the support means so as to be openable and closable together with the input means, and that overlaps the display surface when the input means is in the closed position. In the electro-optical device, it is preferable that the input unit includes a reflective polarizer, and the reflective polarizer overlaps the display surface when the input unit is in the closed position.

  Since the electro-optical device has a reflective polarizer that overlaps the display surface when the input unit is in the closed position, polarized light parallel to the transmission axis of the reflective polarizer out of the light incident on the input unit. Light having a component passes through the reflective polarizer and the input means, while light having a polarization component orthogonal to the transmission axis of the reflective polarizer is reflected by the reflective polarizer. In general, external light incident on the input means includes light of all polarization directions, and a part of the light is reflected by the reflective polarizer. Therefore, the electro-optical device also functions as a mirror.

  In the electro-optical device, the input unit can be placed at a position covering the display surface of the electro-optical panel, or the input unit can be placed at a position where the display surface is opened. When the input unit is placed at a position covering the display surface of the electro-optical panel, the electro-optical panel operates as follows. First, when the electro-optical panel performs display, the display light is transmitted through the input means and the reflective polarizer, and display is performed. On the other hand, when the electro-optical panel is not displaying or displaying with low brightness, the display is performed because there is no display light that passes through the input means and the reflective polarizer or the brightness is very low. Absent. At this time, when external light is incident on the input means, the external light is reflected by a reflective polarizer disposed in parallel with the input means. That is, the electro-optical device functions as a mirror. In addition, when the input unit is placed at a position where the display surface of the electro-optical panel is opened, the display of the electro-optical panel is visually recognized, while the reflective polarizer arranged parallel to the input unit reflects external light. The electro-optical device performs display by an electro-optical panel and also functions as a mirror. As described above, the electro-optical device having the above configuration also has a function as a mirror in addition to the display function by the electro-optical panel.

  In the electro-optical device, in a state where the input unit is placed at a position covering the display surface of the electro-optical panel, the transmission axis of the polarizing plate disposed on the display side of the electro-optical panel and the transmission axis of the reflective polarizer are It is preferable to be parallel. According to such a configuration, when the input unit is placed at a position covering the display surface of the electro-optical panel, the linearly polarized display light transmitted through the polarizing plate of the electro-optical panel remains in the input unit and the reflective polarizer. Can penetrate. That is, the display light from the electro-optical panel can be transmitted from the input means side with the least loss.

  In the electro-optical device, the reflective polarizer rotates in a plane with respect to the polarizing plate disposed on the display side of the electro-optical panel in a state where the input unit is placed at a position covering the display surface of the electro-optical panel. It may be attached so as to be movable. According to such a configuration, by rotating the reflective polarizer, the first state in which the transmission axis of the reflective polarizer and the transmission axis of the polarizing plate are parallel to each other, and the transmission axes are orthogonal to each other. Any one of the second states can be selected. The electro-optical device in the first state performs display when the electro-optical panel performs display, and functions as a mirror when the electro-optical panel does not perform display. In the electro-optical device in the second state, the display light from the electro-optical panel is always reflected by the reflective polarizer and is not visually recognized. On the other hand, the external light incident on the input means is reflected by the reflective polarizer. The device functions as a mirror.

  The electro-optical device includes an illuminating device that makes light incident on the electro-optical panel, and the light emitted from the illuminating device enters the electro-optical panel and is observed through the input unit. It is desirable to include a mode and a mirror mode in which light is not emitted from the illumination device and light incident on the reflective polarizer from the observation side is reflected by the reflective polarizer and observed.

  According to such a configuration, it is possible to easily switch between the observation mode and the mirror mode by controlling the emission of light from the illumination device.

  Next, a second electro-optical device according to the present invention includes an electro-optical panel for displaying an image on a display surface, input means having a planar input area having translucency, and the input means being attached and detached. And a support means for supporting the display means, wherein the input means mounted on the support means covers the display surface.

  According to this electro-optical device, the display surface of the electro-optical panel can be covered with the input means by attaching the input means to the support means, and the display surface of the electro-optical panel can be exposed to the outside by removing the input means from the support means. . For example, when an input operation is performed using the input means, the input operation can be performed by covering the display surface of the electro-optical panel with the input means, that is, placing the input means at the mounting position. On the other hand, when it is desired to observe the display without using the input means, the input means is detached from the support means to expose the display surface to the outside. By doing so, it is possible to prevent the display of the electro-optical panel from becoming difficult to see due to light being reflected by the input means.

  According to the second electro-optical device of the present invention, the input means can be removed from the support means and carried away from the display surface of the electro-optical panel, and maintenance work can be easily performed at the carried position. It can be carried out. Moreover, the operation | work which replaces the damaged input means with a normal input means can be easily performed in the said carried position.

  Next, in the second electro-optical device according to the present invention having a detachable structure, the support means includes an input means case for storing the input means, a panel case for storing the electro-optical panel, It is desirable to have connection means for detachably connecting the input case and the panel case. In this way, the electro-optical panel can be protected by the panel case. Further, the input means can be protected by the input means case. Further, the structure of the support means can be simplified by connecting the panel case and the input means case by the connecting means.

  Next, in the second electro-optical device according to the present invention having the detachable structure, the input unit is in a power-on state when mounted on the support unit, and the input unit is detached from the instruction unit. Sometimes it is desirable to turn off the power. In this way, the input means can be operated only when necessary. Thereby, power consumption in the input means can be reduced.

  Next, a first electronic apparatus according to the present invention includes the electro-optical device having the above-described configuration. In the electro-optical device according to the present invention, the input unit is provided to be openable / closable or detachable from the electro-optical panel. If the input means is placed in an open state with respect to the electro-optical panel, or if the input means is removed from the electro-optical panel, the display surface of the electro-optical panel can be opened to the outside, and the display formed on the display surface It is easy to see. Therefore, also in the electronic apparatus according to the present invention using the electro-optical device, the display formed on the display surface of the electro-optical panel can be easily seen by placing the input unit in the open state or the detached state.

  In addition, the electro-optical device according to the present invention can easily perform maintenance work of the input means by placing the input means in an open state or a detached state. Accordingly, also in the electronic apparatus according to the present invention using the electro-optical device, the maintenance operation can be easily performed by placing the input unit in the open state or the detached state.

  Next, a second electronic device according to the present invention has an electro-optical panel that displays an image on a display surface, a housing that houses the electro-optical panel, and a light-transmitting property that is attached to the housing. Input means having a planar input area, and the input means can be opened and closed between a closed position covering the display surface and an open position exposing the display surface to the outside. Features.

  According to this configuration, since the input unit is configured to be openable and closable with respect to the electro-optical panel, the input unit can be placed at a position covering the display surface of the electro-optical panel, or at a position where the display surface is opened. Input means can also be placed. For example, when an input operation is performed using the input unit, the input operation can be performed by covering the display surface of the electro-optical panel with the input unit, that is, by placing the input unit in the closed position. On the other hand, when it is desired to observe the display without using the input means, the input means is opened to the open position to expose the display surface to the outside. By doing so, it is possible to prevent the display of the electro-optical panel from becoming difficult to see due to light being reflected by the input means.

  In addition, according to the second electronic apparatus of the present invention, the input means can be carried to an open position away from the display surface of the electro-optical panel, so that maintenance work can be easily performed at the open position. In addition, it is possible to easily replace the damaged input unit with a normal input unit.

  Next, a third electronic device according to the present invention includes an electro-optical panel that displays an image on a display surface, a housing that houses the electro-optical panel, a detachable attachment to the housing, and a light-transmitting property. An input means having a planar input area having a mounting area, and the input means exposes the display surface to a mounting position where the input device is mounted to cover the display surface. Thus, it can be attached to and detached from the separation position where it is removed from the housing.

  According to this configuration, the display surface of the electro-optical panel can be covered with the input means by mounting the input means on the housing, and the display surface of the electro-optical panel can be exposed to the outside by removing the input means from the housing. For example, when an input operation is performed using the input means, the input operation can be performed by covering the display surface of the electro-optical panel with the input means, that is, placing the input means at the mounting position. On the other hand, when it is desired to observe the display without using the input means, the input means is removed from the housing and the display surface is exposed to the outside. By doing so, it is possible to prevent the display of the electro-optical panel from becoming difficult to see due to light being reflected by the input means.

  According to the third electronic apparatus of the present invention, the input unit can be carried to a position away from the display surface of the electro-optical panel, so that maintenance work can be easily performed at the carried position. In addition, it is possible to easily replace the damaged input unit with a normal input unit.

(First embodiment of electro-optical device)
Hereinafter, a case where the present invention is applied to a liquid crystal display device which is an example of an electro-optical device will be described as an example. In addition, embodiment described below is an example of this invention, Comprising: This invention is not limited. Further, in the following description, the drawings will be referred to as necessary. In this drawing, in order to show the important components of the structure composed of a plurality of components in an easy-to-understand manner, The dimensions are shown.

(Overall configuration of liquid crystal display device)
FIG. 1 shows an embodiment of a liquid crystal display device as an electro-optical device according to the present invention. The liquid crystal display device 1 shown here includes a liquid crystal display module 2 as an electro-optic module and a touch panel module 3. The liquid crystal display module 2 includes a liquid crystal panel 4 therein and functions as one functional unit for achieving a display function. The touch panel module 3 includes a touch panel 31 therein and functions as one functional unit for achieving an input function.

  In the present embodiment, the liquid crystal display module 2 and the touch panel module 3 are coupled by a pair of hinge portions 49 and 49 as connecting means. Specifically, the liquid crystal display module 2 and the touch panel module 3 are supported by the hinge portions 49 so as to be relatively rotatable as indicated by an arrow E around the axis S0 connecting the pair of hinge portions 49, 49. Has been.

(Configuration and function of the liquid crystal display module 2)
First, the liquid crystal display module 2 will be described. FIG. 2 shows an embodiment of the liquid crystal display module 2 in an exploded state. The liquid crystal display module 2 includes a liquid crystal panel 4 as an electro-optical panel, an illumination device 6 attached to the liquid crystal panel 4, and a frame 8 that supports the liquid crystal panel 4 and the illumination device 6. A driving IC 5 is mounted on one side of the liquid crystal panel 4. Further, an FPC (Flexible Printed Circuit) substrate 7 as a wiring substrate is connected to the side edge of the liquid crystal panel 4 on which the driving IC 5 is mounted.

  The liquid crystal display module 2 also has a first outer case 9a and a second outer case 9b, and these cases 9a and 9b are combined with each other to form an outer case 9 as a panel case. The liquid crystal panel 4 and the illumination device 6 are accommodated in the exterior case 9 while being supported by the frame 8. Regarding the liquid crystal display module 2, the side on which the arrow A is drawn is the observation side. A bracket 19 that is a component of the hinge portion 49 is provided at the end of the first exterior case 9a.

  The illuminating device 6 includes an LED (Light Emitting Diode) 11 as a light source and a light guide body 12 formed of a translucent resin. The light generated from the LED 11 is introduced into the light guide 12 through the light incident surface 12a of the light guide 12, and is emitted to the outside as planar light from the light exit surface 12b. A light reflection layer 13 is provided on the back surface of the light guide 12 as viewed from the observation side indicated by the arrow A. A light diffusion layer 14 is provided on the light exit surface 12 b of the light guide 12. The illumination device 6 is disposed on the back side of the liquid crystal panel 4 when viewed from the observation direction indicated by the arrow A, and functions as a backlight. Note that a layer having optical characteristics other than the light diffusion layer 14 may be provided on the light emitting surface 12b of the light guide 12 as necessary. The light source can also be configured by a point light source other than the LED 11 or a linear light source such as a cold cathode tube.

  The liquid crystal panel 4 has a first substrate 21 that is rectangular or square when viewed from the direction of arrow A, and a second substrate 22 that is also rectangular or square when viewed from the direction of arrow A, and these substrates are viewed from the direction of arrow A. Then, a square or rectangular frame-shaped sealing material 23 is attached to form. A gap, a so-called cell gap, is formed between the first substrate 21 and the second substrate 22, and liquid crystal as an electro-optical material is sealed therein to constitute the liquid crystal layer 24.

  The first substrate 21 and the second substrate 22 are made of, for example, translucent glass or translucent plastic. And the phase difference plate 27a and the polarizing plate 28a are respectively attached to the outer surface of the first substrate 21 by sticking or the like. In addition, a retardation plate 27b and a polarizing plate 28b are mounted on the outer surface of the second substrate 22 by sticking or the like. Note that other appropriate optical elements can be used on the surfaces of the first substrate 21 and the second substrate 22 as necessary.

  The liquid crystal panel 4 displays an image such as letters, numbers, and figures on the surface on the observation side indicated by the arrow A, that is, the display surface 16, and the display area Vo is an area where the image is displayed on the display surface 16. is there. In the case of this embodiment, such a liquid crystal panel 4 can be comprised by arbitrary display modes. For example, in terms of a liquid crystal driving method, either a simple matrix method or an active matrix method may be used. As for the type of liquid crystal mode, TN (Twisted Nematic), STN (Super Twisted Nematic), a vertical alignment mode composed of liquid crystal having a negative dielectric constant, and any other liquid crystal can be used. In terms of the daylighting method, any of a transmissive type, a reflective type, and a transflective type may be used. In this embodiment, since the illumination device 6 is attached to the liquid crystal panel 4, the daylighting method is a transmissive type or a transflective type.

  The simple matrix method is a matrix method in which each pixel does not have an active element, the intersection between the scanning electrode and the data electrode corresponds to a pixel or a dot, and a drive signal is directly applied. TN or STN is used as the liquid crystal mode for this method. Next, in the active matrix method, an active element is provided for each pixel or dot, the active element is turned on in the writing period and the data voltage is written, and the active element is turned off in other periods. Is a matrix method. Active elements used in this method include a three-terminal type and a two-terminal type. An example of a three-terminal active element is a TFT (Thin Film Transistor). An example of a two-terminal active element is a TFD (Thin Film Diode).

  In the liquid crystal panel 4 as described above, when color display is performed, a color filter is provided on the first substrate 21 or the second substrate 22. The color filter is a filter that selectively transmits light in a specific wavelength range. Specifically, each of the three primary colors B (blue), G (green), and R (red) is associated with each dot on the first substrate 21 or the second substrate 22, and a predetermined arrangement, for example, Arrange them in stripes, deltas, and mosaics.

  The second substrate 22 has an overhang portion 25 that protrudes to the outside of the first substrate 21 that is a counter substrate. The driving IC 5 is mounted on the surface of the projecting portion 25 on the first substrate 21 side by, for example, COG (Chip On Glass) technology using an ACF (Anisotropic Conductive Film) 26. . A plurality of driving ICs 5 are mounted in the present embodiment, three in this embodiment. These driving ICs 5 drive the liquid crystal panel 4 by outputting scanning signals and data signals to the electrodes of the liquid crystal panel 4.

  The FPC board 7 is connected to the side edge of the overhang 25 using, for example, an ACF 26. A plurality of circuit components necessary for driving the liquid crystal panel 4 are mounted on the FPC board 7, and a plurality of wirings constituting the circuit by connecting the circuit components are formed by patterning. Further, the FPC board 7 is provided with an input terminal 7a, and an output terminal of an external input device (for example, a control circuit of an electronic device such as a mobile phone or a touch panel) is connected to the input terminal 7a. . A signal output from the input device is input to the driving IC 5 of the liquid crystal panel 4 via the FPC board 7 and is provided for display on the liquid crystal panel 4.

  The frame 8 includes a lighting device housing portion 8a and a liquid crystal panel locking piece 8b. The frame 8 can be formed, for example, by molding using plastic as a material. The illumination device accommodating portion 8a is a space provided inside the frame 8, and the light guide 12 is accommodated in this space. The liquid crystal panel locking pieces 8b are provided at the four corners of the frame 8 and extend to the observation side indicated by the arrow A. The liquid crystal panel 4 is housed and supported in the frame 8 by fitting inside the liquid crystal panel locking pieces 8b.

  The first exterior case 9 a is provided so as to cover the display surface 16 of the liquid crystal panel 4. An opening 17 is provided in the first exterior case 9 a, and a display realized in the display surface 16 by the liquid crystal panel 4 can be visually recognized through the opening 17. An area where display is performed in the display surface 16 is a display area Vo. The second outer case 9b is provided on the back side of the frame 8 when viewed from the observation side indicated by the arrow A. The first outer case 9a and the second outer case 9b are formed of a metal such as stainless steel, for example.

  When manufacturing the liquid crystal display module 2, the liquid crystal panel 4 and the lighting device 6 are accommodated in the frame 8, the FPC board 7 is bent as shown by an arrow B, and is brought into contact with the light reflection layer 13 of the lighting device 6. Or make it close. In a state where the liquid crystal panel 4, the lighting device 6, and the frame 8 are assembled in this manner, they are covered so as to be sandwiched between the first outer case 9a and the second outer case 9b. Thus, the liquid crystal display module 2 is formed.

(Configuration and function of touch panel module 3)
Next, the touch panel module 3 constituting the liquid crystal display device 1 of FIG. 1 will be described. FIG. 3 shows the touch panel module 3 of FIG. 1 in an exploded state. FIG. 4 shows a cross-sectional structure according to the line CC in FIG. In FIG. 3, the touch panel module 3 includes a touch panel 31 as input means, a first outer case 32a, and a second outer case 32b. A wiring board 34 is connected to one side of the touch panel 31. The first outer case 32a and the second outer case 32b are combined with each other to form an outer case 32 as an input means case. And the touch panel 31 is accommodated in the exterior case 32. A pin 35 as a shaft member, which is a component of the hinge portion 49 of FIG. 1, is provided at the end of the first exterior case 32a.

  The touch panel 31 includes a front substrate 41 positioned on the input side indicated by an arrow D, and a rear substrate 42 positioned on the back side of the front substrate 41 when viewed from the input side. These substrates 41 and 42 are bonded together by a square or rectangular frame-shaped adhesive 43 as viewed from the direction of arrow D. The front substrate 41 is formed in a film shape with a thickness of about 0.1 to 0.2 mm using, for example, translucent plastic. Further, the rear substrate 42 is formed of, for example, translucent glass, translucent plastic, or the like.

  A flat surface electrode 44 a is provided on the surface of the front substrate 41 facing the rear substrate 42. The surface electrode 44 a is provided with a uniform thickness over the entire area in the region Vi having an area slightly smaller than the area of the front substrate 41. A pair of low resistance electrodes 45a and 45a are provided in the vicinity of a pair of opposite sides of the four sides of the surface electrode 44a so as to extend in a direction indicated by an arrow Y substantially parallel to the side.

  On the other hand, a flat surface electrode 44b is provided on the surface of the rear substrate 42 facing the front substrate 41. The surface electrode 44b is provided with a uniform thickness over the entire area in the same region as the surface electrode 44a on the front substrate 41 side. Of the four sides of the surface electrode 44b, in the vicinity of a pair of sides perpendicular to the side on which the low resistance electrodes 45a and 45a are provided on the front substrate 41, a direction indicated by an arrow X substantially parallel to the side. A pair of low resistance electrodes 45b and 45b are provided so as to extend to the front.

  The surface electrodes 44a and 44b and the low resistance electrodes 45a and 45b are formed using a light-transmitting conductive material such as ITO (Indium Tin Oxide). An area Vi provided with the surface electrode 44a on the front substrate 41 is an area that an input person, that is, an observer pushes to indicate a position with his / her finger or using an appropriate input device (not shown), That is, the input area.

  In FIG. 4, a dot is formed on the surface facing the near surface electrode 44a among the surface electrodes 44b far from the input side indicated by arrow D (that is, the observation side indicated by arrow A in FIG. 2). A plurality of protrusions 46 are provided. These protrusions 46 are provided randomly (that is, disorderly) on the surface electrode 44b. These protrusions 46 function as spacers for maintaining a gap between the surface electrode 44a and the surface electrode 44b.

  An external connection terminal 47 is formed at the end of the side 42a of the rear substrate 42 where the electrode 45b is provided. The wiring board 34 is connected to the external connection terminal 47. The wiring board 34 is formed of a flexible board such as an FPC board. For example, a touch panel control circuit (not shown) is connected to the electrode 45b through the wiring board 34. The touch panel control circuit has a voltage generation circuit and a voltage measurement circuit. In the present embodiment, the touch panel control circuit is mounted on the FPC board 7 of FIG. Therefore, the wiring board 34 in FIG. 4 is connected to the input terminal 7a of the FPC board 7 in FIG.

  In FIG. 3, the first exterior case 32 a is provided so as to cover the input surface 36 of the touch panel 31. The first exterior case 32a is provided with an opening 33a having the same area as the input area Vi of the touch panel 31 or a slightly larger area. An operator, that is, an input person can push an appropriate position on the input surface 36 of the touch panel 31 through the opening 33a.

  The second outer case 32b is provided on the opposite side of the first outer case 32a with the touch panel 31 interposed therebetween. The second exterior case 32b is also provided with an opening 33b having the same area as or slightly wider than the input area Vi of the touch panel 31. The first outer case 32a and the second outer case 32b are formed of metal, plastic, or the like, for example. For example, stainless steel can be used as the metal.

  As shown in FIG. 4, the first outer case 32 a and the second outer case 32 b are combined with each other to form one outer case 32. The touch panel 31 is accommodated in the exterior case 32. Thus, the touch panel module 3 is formed.

  As described above, in FIG. 3, the touch panel control circuit (not shown) is connected to the external connection terminal 47 of the wiring board 34. This touch panel control circuit applies a predetermined voltage between the electrodes 45b, 45b on the rear substrate 42 side and measures the voltage between the electrodes 45a, 45a on the front substrate 41 side, and the electrode 45a on the front substrate 41 side. , 45a and a B timing for measuring the voltage between the electrodes 45b, 45b on the rear substrate 42 side are individually realized so as not to overlap each other in time.

  At the above timing A, a uniform voltage drop in which the voltage changes linearly along the Y direction occurs on the rear surface electrode 44b, and the parts having the same coordinate position in the Y direction have substantially the same potential. Such a voltage distribution is constructed. At this time, when a point-like portion in the front substrate 41 is pressed in the input area Vi of the touch panel module 3 corresponding to the display area Vo of the liquid crystal display module 2 (see FIG. 1), the front surface electrode 44a and the rear side The surface electrode 44b contacts with a point-like region. Thereby, the voltage of the surface electrode 44b in the position corresponding to the pressed part can be measured by the touch panel control circuit through the front surface electrode 44a. Since the measured voltage value correlates with the coordinate position in the Y direction of the part where the front substrate 41 is pressed, the touch panel control circuit detects the position in the Y direction of the pressed part.

  Further, when the B timing arrives at which a predetermined voltage is applied between the front electrodes 45a and 45a and the voltage between the rear electrodes 45b and 45b is measured, the front surface electrode 44a is uniformly distributed along the X direction. A voltage drop occurs, and a voltage portion where the voltage changes linearly is formed. The touch panel control circuit can detect the voltage of the front electrode 44a at the position corresponding to the portion where the front substrate 41 is pressed through the rear electrode 44b. Thereby, the position of the pressed part in the X direction can be detected.

  The touch panel control circuit can detect the position coordinate in the Y direction and the position coordinate in the X direction of the pressed part by repeatedly switching the A timing and the B timing related to the touch panel control circuit described above in a short time. .

(Configuration and function of hinge portion 49)
1 is formed by the bracket 19 provided in the first exterior case 9a in FIG. 2 and the pin 35 as the shaft member provided in the first exterior case 32a in FIG. . In FIG. 2, a hole 37 is provided in the bracket 19. 3 is fitted into the hole 37, the touch panel module 3 and the liquid crystal display module 2 are rotatably connected as shown in FIG. In addition, other appropriate components can be additionally provided around the bracket 19 and the pin 35 as necessary. Moreover, the hinge part 49 is not restricted to a structure like this embodiment, A various structure is employable as needed.

  The hinge portion 49 of FIG. 1 supports the touch panel module 3 so as to be rotatable about the axis S0. That is, the hinge part 49 supports the touch panel module 3 so that it can be opened and closed between an open position P1 indicated by a solid line and a closed position P2 indicated by a chain line. The open position P1 is a position where the touch panel module 3 exposes the display surface 16 to the outside without covering the display surface 16 of the liquid crystal display device module 2. The closed position P2 is a position where the touch panel module 3 covers the display surface 16. When the touch panel module 3 is placed at the open position P1, the observer can directly observe the image displayed on the display surface 16. On the other hand, when the touch panel module 3 is placed at the closed position P <b> 2, the observer indirectly observes the display surface 16 through the touch panel module 3.

  The hinge portion 49 preferably has a function of fixing and holding the touch panel module 3 at the open position P1. This eliminates the need for the observer to hold the touch panel module 3 placed at the open position P1.

  In the present embodiment, the touch panel control circuit is formed on the FPC board 7 of FIG. For this reason, it is necessary to electrically connect the wiring board 34 of the touch panel 31 shown in FIG. 3 and the FPC board 7 shown in FIG. Therefore, in this embodiment, the shaft terminal 35a as the first terminal is provided outside the pin 35 in FIG. 3, and the hole terminal 37a as the second terminal is provided inside the hole 37 in FIG. 3 is electrically connected to the wiring board 34. The shaft terminal 35a shown in FIG. 2 is electrically connected to the FPC board 7. In this way, when the pin 35 of FIG. 3 and the bracket 19 of FIG. 2 are fitted together so as to form the hinge portion 49 of FIG. 1, the shaft terminal 35a of FIG. 3 and the hole terminal 37a of FIG. Can be electrically connected to the liquid crystal display module 2 and the touch panel module 3. This connection can be achieved by any other conductive connection method.

  Further, when the touch panel module 3 is in the closed position P2 in FIG. 1, the touch panel 31 is in a state where power is supplied and the touch panel 31 can perform an operation of receiving input, that is, a power-on state. On the other hand, when the touch panel module 3 is in the open position P1, the power supply to the touch panel 31 is cut off, and the touch panel 31 cannot perform an operation of accepting an input, that is, a power-off state. Thus, if the touch panel module 3 is switched between the power-on state and the power-off state according to the position of the touch panel module 3, the touch panel 31 can be operated only when necessary. Thereby, power consumption in the touch panel 31 can be reduced.

  To switch between the power-on state and the power-off state, for example, when the touch panel module 3 is placed at the open position P1, the connection between the shaft terminal 35a in FIG. 3 and the hole terminal 37a in FIG. 2 is released. This can be realized by adopting a structure. Alternatively, a sensor that detects opening and closing of the touch panel module 3 of FIG. 1 is provided, and when the touch panel module 3 is detected to be in the open position P1 by this sensor, the energization to the touch panel 31 is cut off by the control circuit. You can also.

  In the present embodiment, the support means for supporting the touch panel 31 of FIG. 3 as an input means in an openable / closable manner is an exterior case 32 that houses the touch panel 31, the exterior case 9 that houses the liquid crystal panel 4 of FIG. 2, and FIG. The hinge part 49 is realized. Further, the hinge portion 49 functions as a connecting means for connecting the liquid crystal panel 4 and the touch panel 31.

(Overall operation of liquid crystal display device)
Hereinafter, the operation of the liquid crystal display device 1 having the above configuration will be described. The liquid crystal display device 1 only observes the input on the display surface 16 of the liquid crystal display module 2 while performing input using the touch panel module 3 and the observation mode, and the display on the display surface 16 without performing an input operation. Are used under various modes such as an observation mode and a non-use mode in which neither input nor observation is performed. Hereinafter, each mode will be described individually.

(Input and observation mode)
In order to realize this mode, the observer places the touch panel module 3 in the closed position P2 in FIG. At this time, power is supplied to the touch panel 31, and the touch panel 31 is turned on. In addition, the input area Vi of the touch panel module 3 and the display area Vo of the liquid crystal display module 2 are in a positional relationship overlapping each other.

  Since the input area Vi of the touch panel module 3 has translucency, an input person, that is, an observer can observe the display of the liquid crystal display module 2 through the touch panel module 3. When the observer needs to perform any input operation, the observer presses a desired point-like position in the input area Vo of the touch panel module 3 with his / her finger or using an appropriate input device. A touch panel 31 (see FIG. 3) in the touch panel module 3 detects the pressed position as a position in the XY coordinates, and if necessary, the detection result is a control circuit for the liquid crystal display module 2 or a liquid crystal display device. Output to the host controller that controls 1.

(Observation mode)
In order to realize this mode, the observer places the touch panel module 3 at the open position P1. At this time, the supply of power to the touch panel 31 is interrupted, and the touch panel 31 is turned off. As a result, the display surface 16 of the liquid crystal display module 2 is largely opened and exposed to the outside. In this state, the observer observes the image displayed on the display surface 16.

  When the observer observes the display surface 16, if the touch panel module 3 is placed at the closed position P2, the light entering the liquid crystal display module 2 is reflected by the touch panel 31 (see FIG. 3) of the touch panel module 3 and observed. May be visually recognized. In this case, the display on the display surface 16 may be disturbed by the reflected light and difficult to see. On the other hand, if the touch panel module 3 is placed at the open position P1 as described above, the observer can clearly see the display realized by the liquid crystal display module 2 without being disturbed by the touch panel module 3.

(Non-use mode)
When neither the liquid crystal display module 2 nor the touch panel module 3 is used, the observer desirably places the touch panel module 3 at the closed position P2. The entire touch panel module 3 has a larger area than the display surface 16 of the liquid crystal display module 2. When the touch panel module 3 is placed at the closed position P <b> 2 with respect to the liquid crystal display module 2, the touch panel module 3 is displayed on the display surface 16. Can cover the whole. Thereby, the touch panel module 3 can function as a cover for protecting the display surface 16.

(Modification)
In the embodiment shown in FIG. 1, one side of the touch panel module 3 and one side of the liquid crystal display module 2 are joined to each other so as to be rotatable relative to each other about the axis S <b> 0. In other words, both are configured to be foldable. Instead of such an opening / closing structure, an opening / closing structure shown in FIG. 5A may be employed. In this open / close structure, the touch panel module 3 and the liquid crystal display module 2 are planar as shown by an arrow F around a shaft member 38 as a connecting means provided along an axis S1 perpendicular to the display surface 16. And can be rotated, that is, can be pivoted. By this rotation, the touch panel module 3 can be opened and closed between a closed position that covers the display surface Vo of the liquid crystal display module 2 and an open position that opens the display surface Vo. In this embodiment, the support means that supports the touch panel 31 as the input means so as to be openable and closable is configured by an exterior case 32 that houses the touch panel 31, an exterior case 40 that houses the liquid crystal panel 4, and a shaft member 38. .

  Further, instead of the foldable opening / closing structure shown in FIG. 1 and the swiveling opening / closing structure shown in FIG. 5 (a), the opening / closing structure shown in FIG. 5 (b) may be employed. In this open / close structure, the touch panel module 3 and the liquid crystal display module 2 are coupled so as to be slidable in a plane in a direction parallel to the display surface 16 as indicated by an arrow G. This slide movement is realized by a slide movement mechanism 39 which is a connecting means having an arbitrary structure provided between the touch panel module 3 and the liquid crystal display module 2. By this sliding movement, the touch panel module 3 can be opened and closed between a closed position that covers the display surface Vo of the liquid crystal display module 2 and an open position that opens the display surface Vo. In this embodiment, the support means that supports the touch panel 31 as the input means so as to be openable and closable is configured by an exterior case 32 that houses the touch panel 31, an exterior case 50 that houses the liquid crystal panel 4, and a slide moving mechanism 39. The

(Second embodiment of electro-optical device)
FIG. 6 shows another embodiment of the electro-optical device according to the invention. In the liquid crystal display device 1 according to the previous embodiment shown in FIG. 1, a structure in which the touch panel 3 is attached to the liquid crystal display module 2 so as to be openable and closable is employed. On the other hand, the liquid crystal display device 51 shown in FIG. 6 employs a so-called detachable structure in which the touch panel module 53 is detachably attached to the liquid crystal display module 52.

  Hereinafter, the liquid crystal display device 51 of FIG. 6 will be described focusing on differences from the liquid crystal display device 1 of FIG. The same elements as those in the embodiment of FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted. The configuration of the liquid crystal display module 52 shown in FIG. 6 can be the same as that of the liquid crystal display module 2 shown in FIG. 2 except for the bracket 19 and its vicinity. Further, the configuration of the touch panel module 53 in FIG. 6 can be the same as the configuration of the touch panel module 3 shown in FIG. 3 except for the pins 35 and the vicinity thereof.

  In FIG. 6, protrusions 59 and 59 as a pair of connecting means are provided at both ends of the side portion on the back side of the outer case 9 of the liquid crystal display module 52. In addition, a fitting recess 58 as a connecting means is provided at substantially the center of the front side of the outer case 9. On the other hand, an overhang portion 57 is provided on the back side of the outer case 32 of the touch panel module 53, and a fitting convex portion 56 is provided in the approximate center of the front side of the outer case 32. The convex portion 56 can be formed in a claw shape, for example.

  The protrusion 59, the overhanging portion 57, the recess 58, and the protrusion 56 support the touch panel module 53 so as to be detachable between a separation position P3 indicated by a solid line and a mounting position P4 indicated by a chain line. The separation position P3 is a position where the touch panel module 53 exposes the display surface 16 to the outside without covering the display surface 16 of the liquid crystal display device module 52. The mounting position P4 is a position where the touch panel module 53 covers the display surface 16. When the touch panel module 53 is placed at the separation position P3, the observer can directly observe the image displayed on the display surface 16. On the other hand, when the touch panel module 53 is placed at the mounting position P <b> 4, the observer indirectly observes the display surface 16 through the touch panel module 53.

  When the touch panel module 53 is placed at the mounting position P4, the protrusion 59 and the overhanging portion 57 are fitted. At this time, the concave portion 58 and the convex portion 56 are also fitted. Thereby, the touch panel module 53 is mounted on the liquid crystal display module 52 so as not to move.

  Also in this embodiment, it is necessary to electrically connect the wiring board 34 of the touch panel 31 shown in FIG. 3 and the FPC board 7 shown in FIG. This connection can be achieved by any conductive connection method. For example, a terminal connected to the FPC board 7 of FIG. 2 is provided on the protrusion 59 of FIG. 6, and a terminal connected to the wiring board 34 of FIG. Can be provided. In this way, the liquid crystal display module 52 and the touch panel module 53 can be electrically connected when the protrusion 59 and the overhanging portion 57 of FIG. Note that. This electrical connection can also be achieved by providing the recess 58 with a terminal connected to the FPC board 7 of FIG. 2 and providing the projection 56 of FIG. 6 with a terminal connected to the wiring board 34 of FIG.

  Further, when the touch panel module 53 is at the mounting position P4 in FIG. 6, the touch panel 31 is in a state where power is supplied and the touch panel 31 can perform an operation of receiving an input, that is, a power-on state. On the other hand, when the touch panel module 53 is in the separation position P3, the power supply to the touch panel 31 is cut off, and the touch panel 31 cannot perform an operation of accepting an input, that is, a power-off state. As described above, if the touch panel 31 is switched between the power-on state and the power-off state according to the position of the touch panel module 53, the touch panel 31 can be operated only when necessary. Thereby, power consumption in the touch panel 31 can be reduced.

  In the present embodiment, the support means for detachably supporting the touch panel 31 of FIG. 3 as the input means is the exterior case 32 that houses the touch panel 31, the protrusion 59, the overhang part 57, the concave part 58, and the convex part of FIG. 6. This is realized by the unit 56.

(Overall operation of liquid crystal display device)
Hereinafter, the operation of the liquid crystal display device 51 having the above-described configuration will be described individually for each mode of the input and observation mode, the observation mode, and the non-use mode, as in the first embodiment.

(Input and observation mode)
In order to realize this mode, the observer places the touch panel module 53 at the mounting position P4 in FIG. At this time, power is supplied to the touch panel 31, and the touch panel 31 is turned on. In addition, the input area Vi of the touch panel module 53 and the display area Vo of the liquid crystal display module 52 are in a positional relationship.

  Since the input area Vi of the touch panel module 53 has translucency, an input person, that is, an observer can observe the display of the liquid crystal display module 2 through the touch panel module 53. When the observer needs to perform some input operation, the observer presses a desired point-like position in the input area Vi of the touch panel module 53 with his / her finger or using an appropriate input device. The touch panel 31 (see FIG. 3) in the touch panel module 53 detects the pressed position as a position in the XY coordinates, and if necessary, the detection result is a control circuit for the liquid crystal display module 52 or a liquid crystal display device. Output to the host controller that controls 1.

(Observation mode)
In order to realize this mode, the observer places the touch panel module 53 at the separation position P3. At this time, the supply of power to the touch panel 31 is interrupted, and the touch panel 31 is turned off. As a result, the display surface 16 of the liquid crystal display module 52 is largely opened and exposed to the outside. In this state, the observer observes the image displayed on the display surface 16.

  When the observer observes the display surface 16, if the touch panel module 53 is placed at the mounting position P4, the light entering the liquid crystal display module 52 is reflected by the touch panel 31 (see FIG. 3) of the touch panel module 53 and observed. May be visually recognized. In this case, the display on the display surface 16 may be disturbed by the reflected light and difficult to see. On the other hand, if the touch panel module 53 is placed at the separation position P3 as described above, the observer can clearly see the display realized by the liquid crystal display module 52 without being disturbed by the touch panel module 53.

(Non-use mode)
When neither the liquid crystal display module 52 nor the touch panel module 53 is used, the observer desirably places the touch panel module 53 at the mounting position P4. The entire touch panel module 53 has a larger area than the display surface 16 of the liquid crystal display module 52. When the touch panel module 53 is placed at the mounting position P4 with respect to the liquid crystal display module 52, the touch panel module 53 is displayed on the display surface 16. Can cover the whole. Thereby, the touch panel module 53 can function as a cover for protecting the display surface 16.

(Third embodiment of electro-optical device)
FIG. 10 shows another embodiment of the electro-optical device according to the invention. The liquid crystal display device 101 shown in this figure includes a reflective polarizer 90 arranged in parallel with the touch panel 31. Except for this point, the liquid crystal display device 101 has the same configuration as the liquid crystal display device 1 according to the previous embodiment shown in FIG.

  Hereinafter, the liquid crystal display device 101 of FIG. 10 will be described focusing on differences from the liquid crystal display device 1 of FIG. The same elements as those in the embodiment of FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted. As shown in FIG. 10, a reflective polarizer 90 is attached to the surface of the touch panel module 103 on the liquid crystal display module 2 side in a region that overlaps the entire input region Vi. FIG. 11 is a cross-sectional view of the touch panel module 103 taken along the line HH in FIG. As shown in this figure, the reflective polarizer 90 is affixed to the surface of the exterior case 32 and is disposed so as to be substantially parallel to the input region Vi, that is, to be substantially parallel to the touch panel 31.

  The reflective polarizer 90 has a unique transmission axis, and transmits light having a polarization component parallel to the transmission axis out of the light incident on the reflection polarizer 90, and a polarization component orthogonal to the transmission axis. It is an optical member that reflects the light it has. The transmission axis of the reflective polarizer 90 is set to be parallel to the transmission axis of the polarizing plate 28a (see FIG. 2) of the liquid crystal display panel 4 when the touch panel module 103 is in the closed position P2.

(Overall operation of liquid crystal display device)
Hereinafter, the operation of the liquid crystal display device 101 having the above configuration will be described individually for each mode of the input and observation mode, the observation mode, and the non-use mode, as in the first embodiment.

(Input and observation mode)
In order to realize this mode, the observer places the touch panel module 103 in the closed position P2 in FIG. At this time, power is supplied to the touch panel 31, and the touch panel 31 is turned on. Further, the input area Vi of the touch panel module 103 and the display area Vo of the liquid crystal display module 2 are in a positional relationship overlapping each other. The operation of the touch panel module 103 at this time is the same as that in the first embodiment.

  Here, the display function in the input and observation mode will be described with reference to FIG. FIG. 12 is a schematic view showing the reflective polarizer 90, the liquid crystal display panel 4 (particularly, the polarizing plates 28a and 28b), and the illumination device 6 among the constituent elements of the liquid crystal display device 101, and an enlarged distance between these layers. FIG. In this figure, solid arrows drawn on the surfaces of the reflective polarizer 90 and the polarizing plate 28a represent the transmission axes.

  FIG. 12A shows a state in which the illumination device 6 emits light and display by the liquid crystal display panel 4 is performed. Here, a white arrow drawn with the illumination device 6 as a starting point and transmitted through other components represents light emitted from the illumination device 6 and display light of the liquid crystal display panel 4. Since the transmission axes of the reflective polarizer 90 and the polarizing plate 28a are parallel, the linearly polarized display light of the liquid crystal display panel 4 transmitted through the polarizing plate 28a passes through the reflective polarizer 90 as it is and is visually recognized by the observer. . On the other hand, a white broken arrow reflected on the surface of the reflective polarizer 90 represents external light. When the display on the liquid crystal display panel 4 is being performed, the display light is stronger than the reflected light of the external light, and thus the reflected light of the external light is difficult to see. From the above, in the state of FIG. 12A, the observer visually recognizes the display by the liquid crystal display panel 4 in the display area Vo of the liquid crystal display device 101.

  FIG. 12B shows a state in which the illumination device 6 does not emit light and the display by the liquid crystal display panel 4 is not performed. At this time, the observer does not visually recognize the light from the liquid crystal display panel 4 but visually recognizes only the reflected light from the reflective polarizer 90 of the external light. Accordingly, in the state of FIG. 12B, the observer recognizes the display area Vo of the liquid crystal display device 101 as a mirror. Such a state of the liquid crystal display device 101 corresponds to the “mirror mode” in the present invention.

  As described above, in the input and observation mode, the liquid crystal display device 101 performs display by the liquid crystal display panel 4 or functions as a mirror according to the display state of the liquid crystal display panel 4.

  In order to make the liquid crystal display device 101 function as a mirror, the liquid crystal display panel 4 performs low-luminance display such as black display after the illumination device 6 emits light, in addition to the illumination device 6 not emitting light. Also good. At this time, most of the light from the illuminating device 6 is shielded in the liquid crystal display panel 4, so the observer does not visually recognize the light from the liquid crystal display panel 4, but only reflects the reflected light of the external light from the reflective polarizer 90. Visually check. That is, the display area Vo of the liquid crystal display device 101 is recognized as a mirror. Further, only a part of the area of the liquid crystal display panel 4 can be displayed with low luminance, and only that area can partially function as a mirror.

(Observation mode)
In order to realize this mode, the observer places the touch panel module 103 at the open position P1. At this time, the supply of power to the touch panel 31 is interrupted, and the touch panel 31 is turned off. As a result, the display surface 16 of the liquid crystal display module 2 is largely opened and exposed to the outside. In this state, the observer observes the image displayed on the display surface 16. In addition, since the touch panel module 103 at the open position P <b> 1 includes the reflective polarizer 90, external light is reflected by the reflective polarizer 90. For this reason, the observer recognizes the touch panel module 103 as a mirror. Thus, in the observation mode, display is performed on the liquid crystal display module 2, and the touch panel module 103 functions as a mirror.

(Non-use mode)
When neither the liquid crystal display module 2 nor the touch panel module 103 is used, the observer desirably places the touch panel module 103 at the closed position P2. At this time, as in the first embodiment, the touch panel module 103 functions as a cover for protecting the display surface 16 of the liquid crystal display module 2. Furthermore, since the reflective polarizer 90 provided in the touch panel module 103 reflects external light, the observer recognizes the touch panel module 103 as a mirror. Thus, the liquid crystal display device 101 can be used as a mirror even in the non-use mode. Such a state of the liquid crystal display device 101 also corresponds to the “mirror mode” in the present invention.

  As described above, the liquid crystal display device 101 can function as a mirror in any mode by the action of the reflective polarizer 90. In addition, since the reflective polarizer 90 that reduces the display visibility of the liquid crystal display module 2 is also openable and detachable, the display surface 16 of the liquid crystal display module 2 is not covered with the reflective polarizer 90. The display of the liquid crystal display module 2 can be observed, and a clear display with high luminance can be realized. Such a configuration using the reflective polarizer 90 is also applicable to the second embodiment described above.

(Modification 1)
The liquid crystal display device 101 shown in FIGS. 10 and 11 includes the reflective polarizer 90 on the surface of the touch panel module 103 on the liquid crystal display module 2 side, but may be configured as follows instead. it can.

  13 to 15 are sectional views of a touch panel module of a liquid crystal display device according to a modification of the present embodiment. The touch panel module 103A illustrated in FIG. 13 includes a reflective polarizer 90 between the rear substrate 42 of the touch panel 31 and the second exterior case 32b. The touch panel module 103B illustrated in FIG. 14 includes a reflective polarizer 90 between the rear substrate 42 of the touch panel 31 and the surface electrode 44b. The touch panel module 103 </ b> C illustrated in FIG. 15 has a configuration in which the reflective polarizer 90 also serves as the front substrate of the touch panel 31. That is, the reflective polarizer 90 is disposed between the first exterior case 32a and the surface electrode 44a.

  Since all the constituent elements of the touch panel 31 have translucency, outside light and display light from the liquid crystal display panel 4 are incident on the reflective polarizer 90 regardless of any of the above-described configurations, and depending on the polarization. Transmitted or reflected. For this reason, a liquid crystal display device having a function as a mirror can be obtained by the configurations of these modified examples as in the above-described embodiment. Moreover, according to these structures, since the reflective polarizer 90 is arrange | positioned inside the exterior case 32 of the touch panel module 103, since the reflective polarizer 90 is not exposed, the reflective polarizer 90 is damaged. Can be prevented. In particular, according to the configuration of the touch panel module 103B shown in FIG. 14, the reflective polarizer 90 is disposed inside the rear substrate 42 and does not contact the surface electrode 44a or the like that is deformed during operation. The child 90 can be protected.

(Modification 2)
16 and 17 show a liquid crystal display device 111 according to another modification of the present embodiment. FIG. 16 is a cross-sectional view of the liquid crystal display device 111, and FIG. 17 is a perspective view for explaining operations in the liquid crystal display device 111. The liquid crystal display device 111 can rotate and move the touch panel module 113 between the open position P1 and the closed position P2 about the axis S0 as in the liquid crystal display device 101 in the above embodiment. On the surface of the touch panel module 113 of the liquid crystal display device 111, a circular reflective polarizer 90 is provided so as to be rotatable in the plane. In addition, a lever 92 is attached to the reflective polarizer 90, and the lever 92 protrudes outside from a slit 93 formed on the side surface of the exterior case 32. In addition, the slit 93 is formed over about 90 ° in a plan view from the upper part of the outer case 32 to one side part. Then, by holding the lever 92 and moving it in the slit 93, the reflective polarizer 90 can be rotated within a range of about 90 °.

  Here, the operation in the input and observation modes of the liquid crystal display device 111 having the above configuration will be described. When trying to realize this mode, the observer places the touch panel module 113 in the closed position P2. When the lever 92 is operated in this state, the reflective polarizer 90 can be rotated. When the transmission axis of the reflective polarizer 90 and the transmission axis of the polarizing plate 28a of the liquid crystal display panel 4 are made parallel by the rotation operation, the liquid crystal display device 111 is as shown in the schematic diagram of FIG. The liquid crystal display device 101 of the above embodiment operates in the same manner as the input and observation mode operations. That is, when the liquid crystal display panel 4 performs display, the display is performed, and when the liquid crystal display panel 4 does not perform display or displays with low luminance, it functions as a mirror.

  On the other hand, when the lever 92 is operated so that the transmission axis of the reflective polarizer 90 and the transmission axis of the polarizing plate 28a are orthogonal to each other, the liquid crystal display device 111 always has a structure as shown in the schematic diagram of FIG. Acts as a mirror. That is, regardless of whether or not the liquid crystal display panel 4 is displaying, the linearly polarized light transmitted through the polarizing plate 28a is reflected by the reflective polarizer 90. Not visible. Therefore, the observer visually recognizes only the reflected light of the external light from the reflective polarizer 90. That is, the liquid crystal display device 111 functions as a mirror.

  As described above, according to the liquid crystal display device 111 of the present modification example, in the input and observation mode, by operating the lever 92, it is possible to perform display, and the display is cut off to function only as a mirror. The state can be switched arbitrarily. As a result, the normal display and the mirror state can be switched by an extremely easy operation without switching the display of the liquid crystal display panel 4 on and off.

  Further, by setting the transmission axis of the reflective polarizer 90 to an intermediate angle between parallel and orthogonal to the transmission axis of the polarizing plate 28a, a mirror state can be generated while displaying the liquid crystal display panel 4. it can. The ratio of the display degree at this time can be freely adjusted by the angle of the transmission axis of the reflective polarizer 90 with respect to the transmission axis of the polarizing plate 28a.

  The operation of the liquid crystal display device 111 in the observation mode and the non-use mode is the same as that of the liquid crystal display device 101 of the above embodiment. That is, in the observation mode, display is performed on the liquid crystal display module 2, and the touch panel module 113 functions as a mirror. In the non-use mode, the touch panel module 113 functions as a mirror.

  In the above modification, the reflective polarizer 90 itself is rotated. However, for example, a cover glass may be rotatably provided on the touch panel module 113, and the reflective polarizer 90 may be attached to the cover glass. Further, although the reflective polarizer 90 is manually rotated, the reflective polarizer 90 may be electrically rotated.

(Other embodiments of electro-optical device)
The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims. In the first and second embodiments described above, the touch panel modules 3 and 53 are attached to the first exterior case 9a (see FIG. 2) of the liquid crystal display modules 2 and 52 as shown in FIG. 1 or FIG. Yes. However, the touch panel modules 3 and 53 can also be attached to the frame 8 (see FIG. 2) of the liquid crystal display modules 2 and 52.

  Further, in the above-described embodiment, the case where the present invention is applied to a liquid crystal display device as an electro-optical device is illustrated. However, the present invention can be applied to electro-optical devices other than liquid crystal display devices, such as organic EL devices, inorganic EL devices, plasma display devices (PDPs), electrophoretic displays (EPDs), field emission display devices ( It can also be applied to FED (Field Emission Display).

(First Embodiment of Electronic Device)
Hereinafter, an electronic device according to the present invention will be described with reference to embodiments. In addition, this embodiment shows an example of this invention and this invention is not limited to this embodiment.

  FIG. 7 is a block diagram showing an embodiment of an electronic device according to the present invention. FIG. 8 shows a portable information terminal 70 which is an example of the electronic device shown in the block diagram of FIG. The electronic apparatus shown in FIG. 7 includes a liquid crystal display device 61 and a control circuit 60 that controls the liquid crystal display device 61. The control circuit 60 includes a display information output source 64, a display information processing circuit 66, a power supply circuit 67, and a timing generator 68. The liquid crystal display device 61 includes a liquid crystal display module 71 including a liquid crystal panel 62 and a drive circuit 65, and a touch panel module 72 including a touch panel 63.

  The display information output source 64 includes a memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a storage unit such as various disks, a tuning circuit that tunes and outputs a digital image signal, and the like. Display information such as an image signal in a predetermined format is supplied to the display information processing circuit 66 based on various generated clock signals.

  Next, the display information processing circuit 66 includes various well-known circuits such as an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, a clamp circuit, etc., and executes processing of input display information to output an image signal. It is supplied to the drive circuit 65 together with the clock signal CLK. Here, the drive circuit 65 is a general term for an inspection circuit and the like together with a scanning line drive circuit and a data line drive circuit. The power supply circuit 67 supplies a predetermined power supply voltage to each of the above components.

  The electronic device shown in the block diagram of FIG. 7 is configured as, for example, the portable information terminal 70 shown in FIGS. 8A and 8B. In the portable information terminal 70, a main body 73 provided with a liquid crystal display module 71 inside the housing and a touch panel module 72 provided with a touch panel 63 are supported by a hinge 74 so as to be opened and closed. The hinge portion 74 is provided, for example, on the liquid crystal display module 71 and is configured by a bracket 75 exposed to the outside from the main body portion 73 and a pin (not shown) provided on the touch panel module 72. FIG. 8A shows an open state in which the touch panel module 72 is placed in the open position, and FIG. 8B shows a closed state in which the touch panel module 72 is placed in the closed position.

  Here, whether or not to perform an input operation using the touch panel module 72 is switched by opening and closing the touch panel module 72. Therefore, as shown in FIG. 7, the electronic device includes an open / close detection circuit 69 that detects the open / close state of the touch panel module 72.

  In the portable information terminal 70 of FIG. 8, when an input operation is performed using the touch panel module 72, the touch panel module 72 is moved from the open position of FIG. 8A to the closed position of FIG. 8B. In this way, the closed state of the touch panel module 72 is detected by the open / close detection circuit 69 shown in FIG. 7, and the touch panel 63 operates to enable an input operation on the input surface 79 using, for example, the input pen 78 shown in FIG. 8B. .

  On the other hand, when no input is performed using the touch panel module 72, the touch panel module 72 is moved from the closed position in FIG. 8B to the open position in FIG. 8A. In this way, the open / close detection circuit 69 of FIG. 7 detects the open state of the touch panel module 72, and the operation of the touch panel 63 ends. The input operation in the portable information terminal 70 can be performed using an input button 76 provided on the main body 73 in addition to the touch panel 63.

  The liquid crystal display device 61 of FIG. 7 can be configured using, for example, the liquid crystal display device 1 shown in FIG. In the liquid crystal display device 1, if the touch panel 31 is placed in an open state with respect to the liquid crystal panel 4, the display surface 16 of the liquid crystal panel 4 can be opened to the outside, and the display formed on the display surface 16 can be easily viewed. Accordingly, also in the portable information terminal 70 shown in FIG. 8 using the liquid crystal display device 1, the display formed on the display surface 77 of the liquid crystal panel 62 by placing the touch panel 63 in the open state shown in FIG. It is easy to see.

  Further, the liquid crystal display device 1 of FIG. 1 can easily perform maintenance work of the touch panel 31 by placing the touch panel 31 in the open state P1. Therefore, also in the portable information terminal 70 of FIG. 8 using the liquid crystal display device 1, maintenance work can be easily performed by placing the touch panel 63 in the open state of FIG.

(Second Embodiment of Electronic Device)
FIG. 9 shows a portable information terminal 80 which is another embodiment of the electronic apparatus according to the present invention. The portable information terminal 80 is another example of an electronic device shown in a block diagram in FIG. In the portable information terminal 70 according to the previous embodiment shown in FIG. 8, a structure in which the touch panel module 72 is attached to the main body 73 so as to be opened and closed is adopted. On the other hand, the portable information terminal 80 shown in FIG. 9 employs a structure in which the touch panel module 82 is detachably attached to the main body 83 including the liquid crystal display module 81, a so-called detachable structure.

  Hereinafter, the portable information terminal 80 of FIG. 9 will be described focusing on differences from the portable information terminal 70 of FIG. The same elements as those in the embodiment of FIG. 8 are denoted by the same reference numerals, and the description thereof is omitted. The configuration of the main body 83 shown in FIG. 9 can be the same as the configuration of the main body 73 shown in FIG. 8 except for the bracket 75 and its vicinity. The configuration of the touch panel module 82 in FIG. 9 can be the same as the configuration of the touch panel module 72 shown in FIG. 8 except for the pins and the vicinity thereof.

  In FIG. 9, a pair of protrusions 84, 84 are provided at both ends of the side portion on the back side of the main body portion 83. Further, a fitting recess 87 is provided in the approximate center of the side portion on the near side of the main body portion 83. On the other hand, a projecting portion 85 is provided on the side portion on the back side of the touch panel module 82, and a claw-like convex portion 89 for fitting is provided in the approximate center of the side portion on the near side. The protrusion 84 and the overhanging portion 85 and the concave portion 87 and the convex portion 89 support the touch panel module 82 in a detachable manner between the detached position in FIG. 9A and the attached position in FIG. 9B.

  Here, whether or not to perform an input operation using the touch panel module 82 is switched by attaching and detaching the touch panel module 82. The detection of the mounted state and the detached state of the touch panel module 82 is performed by an open / close detection circuit 69 shown in FIG.

  In the portable information terminal 80 of FIG. 9, when an input operation is performed using the touch panel module 82, the touch panel module 82 is moved from the detached position of FIG. 9A to the mounted position of FIG. 9B. In this way, the mounting state of the touch panel module 82 is detected by the open / close detection circuit 69 shown in FIG. 7, and the touch panel 63 operates to perform an input operation on the input surface 79 using, for example, the input pen 88 shown in FIG. 9B. It becomes possible.

  On the other hand, when the input using the touch panel module 82 is not performed, the touch panel module 82 is moved from the mounting position in FIG. 9B to the detached position in FIG. 9A. Then, the open / close detection circuit 69 of FIG. 7 detects the detached state of the touch panel module 82, and the operation of the touch panel 63 ends. The input operation in the portable information terminal 80 can be performed using an input button 86 provided on the main body 83 in addition to the touch panel 63.

  The liquid crystal display device 61 of FIG. 7 can be configured using, for example, the liquid crystal display device 51 shown in FIG. In the liquid crystal display device 51, when the touch panel 31 is placed in the state P3 detached from the liquid crystal panel 4, the display surface 16 of the liquid crystal panel 4 can be opened to the outside, and the display formed on the display surface 16 can be easily seen. Accordingly, also in the portable information terminal 80 shown in FIG. 9 using the liquid crystal display device 51, the display formed on the display surface 77 of the liquid crystal panel 62 by placing the touch panel 63 in the detached state of FIG. It is easy to see.

  In addition, the liquid crystal display device 51 of FIG. 6 can easily perform maintenance work of the touch panel 31 by removing the touch panel 31 and placing it in the state P3. Accordingly, in the portable information terminal 80 shown in FIG. 9 using the liquid crystal display device 51, the maintenance work can be easily performed by placing the touch panel 63 in the detached state shown in FIG. 9B.

(Other Embodiments of Electronic Device)
The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims. For example, in the first embodiment, the portable information terminal 70 shown in FIG. 8 is formed by using the liquid crystal display device 1 in which the touch panel module 3 can be opened and closed with respect to the liquid crystal display module 2 as shown in FIG. did. However, in the first embodiment, the portable information terminal 70 of FIG. 8 may be configured such that a hinge part is formed in a casing forming the main body part 73 and the touch panel module 72 can be opened and closed on the hinge part.

  In the first embodiment, the liquid crystal display device 1 may be replaced with a liquid crystal display device 101 including a reflective polarizer 90. A perspective view of the portable information terminal 120 having such a configuration is shown in FIG. As shown in this figure, the portable information terminal 120 has a reflective polarizer 90 attached to the touch panel module 72. Therefore, according to the portable information terminal 120, display can be performed by the liquid crystal display module 71, and the touch panel module 72 can also function as a mirror.

  In the second embodiment, the portable information terminal 80 shown in FIG. 9 is formed by using the liquid crystal display device 51 in which the touch panel module 53 is detachably attached to the liquid crystal display module 52 as shown in FIG. did. However, in the second embodiment, the portable information terminal 80 shown in FIG. 9 has a protrusion 84 formed on the casing forming the main body 83, and the touch panel module 82 is detachably provided on the protrusion 84. You can also.

  Moreover, in said 2nd Embodiment, the touch panel module 82 was attached to the main-body part 83 using the protrusion 84, the overhang | projection part 85, the recessed part 87, and the convex part 89 so that attachment or detachment was possible. However, in the present invention, the touch panel module 82 can be detachably attached to the main body 83 by other methods. For example, a magnet may be provided on the touch panel module 82 and fixed to the main body 83.

  Further, in any of the second embodiment and the modifications thereof, a configuration in which the reflective polarizer 90 is attached to the touch panel modules 53 and 82 may be employed. According to such a configuration, a function as a mirror can be added to the portable information terminal 80.

  In addition to the cellular phone described above, the electronic device includes a personal computer, a liquid crystal television, a viewfinder type or a monitor direct view type video tape recorder, a car navigation device, a pager, an electronic notebook, a calculator, a word processor, Examples include workstations, video phones, and POS terminals.

1 is a perspective view illustrating an embodiment of an electro-optical device according to the invention. FIG. 2 is a perspective view showing an example of a liquid crystal display module used in the electro-optical device of FIG. 1 in an exploded state. The perspective view which shows an example of the touchscreen module used with the electro-optical apparatus of FIG. 1 in an exploded state. Sectional drawing according to CC line of FIG. 4A and 4B are perspective views illustrating another embodiment of the electro-optical device according to the invention, in which FIG. 4A illustrates a swing opening / closing method, and FIG. FIG. 10 is a perspective view showing another embodiment of the electro-optical device according to the invention. 1 is a block diagram showing an embodiment of an electronic device according to the present invention. 8A and 8B are diagrams illustrating an external appearance of the electronic device illustrated in FIG. 7, in which FIG. 7A illustrates a state in which the input unit is opened, and FIG. 7B illustrates a state in which the input unit is closed. 8A and 8B are diagrams showing another appearance of the electronic device shown in FIG. 7, in which FIG. 7A shows a state in which the input unit is detached, and FIG. 7B shows a state in which the input unit is attached. 1 is a perspective view illustrating an embodiment of an electro-optical device according to the invention. Sectional drawing according to the HH line | wire of the touchscreen module used with the electro-optical apparatus of FIG. (A) And (b) is a schematic diagram for demonstrating the display function of the electro-optical apparatus based on this invention. 1 is a cross-sectional view of a touch panel module used in an embodiment of an electro-optical device according to the invention. 1 is a cross-sectional view of a touch panel module used in an embodiment of an electro-optical device according to the invention. 1 is a cross-sectional view of a touch panel module used in an embodiment of an electro-optical device according to the invention. 1 is a cross-sectional view showing an embodiment of an electro-optical device according to the invention. FIG. 17 is a perspective view for explaining an operation in the electro-optical device of FIG. 16. (A) And (b) is a schematic diagram for demonstrating the display function of the electro-optical apparatus which concerns on FIG. 1 is a perspective view showing an embodiment of an electronic device according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,51,101,111 ... Liquid crystal display device (electro-optic device), 2,52 ... Liquid crystal display module (electro-optic module), 3, 53, 103, 113 ... Touch panel module, 4 ... Liquid crystal panel (electro-optic panel) DESCRIPTION OF SYMBOLS 5 ... Drive IC, 6 ... Illuminating device, 7 ... FPC board (wiring board), 8 ... Frame, 9, 40, 50 ... Exterior case, 9a ... 1st exterior case, 9b ... 2nd exterior case, 11 ... LED, 12 ... light guide, 13 ... light reflecting layer, 14 ... light diffusion layer, 16 ... display surface, 17 ... opening of the first outer case, 19 ... bracket, 21 ... first substrate, 22 ... second substrate, DESCRIPTION OF SYMBOLS 23 ... Sealing material, 24 ... Liquid crystal layer, 27a, 27b ... Phase difference plate, 28a, 28b ... Polarizing plate, 31 ... Touch panel (input means), 32 ... Exterior case, 32a ... 1st exterior case, 32b ... 2nd exterior Case, DESCRIPTION OF SYMBOLS 4 ... Wiring board, 35 ... Pin (shaft member), 35a ... Shaft terminal (1st terminal), 36 ... Input surface, 37 ... Hole, 37a ... Hole terminal (2nd terminal), 38 ... Shaft member (connection means) 41 ... front substrate, 42 ... rear substrate, 43 ... adhesive, 44a, 44b ... surface electrode, 45a, 45b ... low resistance electrode, 46 ... projection, 47 ... external connection terminal, 49 ... hinge part (coupling means) , 56 ... convex part, 57 ... overhang part, 58 ... concave part, 59 ... protrusion, 60 ... control circuit, 61 ... liquid crystal display device (electro-optical device), 62 ... liquid crystal panel (electro-optical panel), 63 ... touch panel, 65 ... Drive circuit, 70, 80, 120 ... Portable information terminal (electronic device), 71, 81 ... Liquid crystal display module, 72, 82 ... Touch panel module (input means), 73, 83 ... Main unit, 74 ... Hinge part , 77 ... display screen, 76, 86 Operation buttons, 79 ... input surface, 78,88 ... input pen, 90 ... reflecting polarizer, P1 ... open position, P2 ... closed position, P3 ... detachment position, P4 ... mounting position, S0, S1 ... axis, Vo ... Display area, Vi... Input area.

Claims (13)

An electro-optical panel for displaying an image on a display surface;
An input means having a planar input area having translucency;
Supporting means for supporting the input means,
The support means supports the input means so that the input means can be opened and closed between a closed position that covers the display surface and an open position that exposes the display surface to the outside.   2. The electro-optical device according to claim 1, wherein the support means can open and close the input means by relatively rotating the input means and the electro-optical panel about an axis parallel to the display surface. An electro-optical device characterized by being supported by the above.   2. The electro-optical device according to claim 1, wherein the support means can open and close the input means by relatively rotating the input means and the electro-optical panel about an axis perpendicular to the display surface. An electro-optical device characterized by being supported by the above. The electro-optical device according to claim 2 or 3,
The supporting means includes
A shaft member integral with one of the electro-optical panel or the input means and extending along the axis;
A hole that is integral with the other of the electro-optical panel or the input means and fits into the shaft member;
A first terminal provided on the shaft member and electrically connected to one of the electro-optical panel or the input means;
A second terminal provided in the hole and electrically connected to the other of the electro-optical panel or the input means;
An electro-optical device, wherein the electro-optical panel and the input unit are electrically connected by contacting the first terminal and the second terminal.   2. The electro-optical device according to claim 1, wherein the support unit supports the input unit so that the input unit can be opened and closed by relatively translating the input unit and the electro-optical panel. .   6. The electro-optical device according to claim 1, wherein the input unit is in a power-on state when in the closed position and is in a power-off state when in the open position. An electro-optical device. The electro-optical device according to any one of claims 1 to 6,
An electro-optical device, comprising: a reflective polarizer that is supported by the support means so as to be openable and closable together with the input means, and that overlaps the display surface in a plane when the input means is in the closed position. The electro-optical device according to any one of claims 1 to 6,
The input means comprises a reflective polarizer;
The electro-optical device, wherein the reflective polarizer overlaps the display surface when the input unit is in the closed position. The electro-optical device according to claim 7 or 8,
An illumination device for making light incident on the electro-optic panel;
An observation mode in which light emitted from the illumination device enters the electro-optical panel and is observed through the input means;
An electro-optical device comprising: a mirror mode in which light is not emitted from the illumination device and light incident on the reflective polarizer from the observation side is reflected by the reflective polarizer and observed. An electro-optical panel for displaying an image on a display surface;
An input means having a planar input area having translucency;
Supporting means for detachably supporting the input means,
The electro-optical device, wherein the input unit mounted on the support unit covers the display surface.   11. The electro-optical device according to claim 10, wherein the support means includes: an input means case for storing the input means; a panel case for storing the electro-optical panel; the input case and the panel case. An electro-optical device comprising: a connecting unit that is detachably connected.   12. The electro-optical device according to claim 11, wherein the input unit is in a power-on state when mounted on the support unit, and the input unit is in a power-off state when detached from the instruction unit. An electro-optical device. An electronic apparatus comprising the electro-optical device according to claim 1.

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