JP2009205376A - Input pen and liquid crystal display electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input pen allowing detection of an input image receiving parallax control to a liquid crystal display electronic apparatus performing parallactic display of a display image by the parallax control, and to provide the liquid crystal display electronic apparatus applied with the input pen. <P>SOLUTION: This input pen 35 includes: a plate-like chip plate part 36 facing to an image input part 30; and a rod-like body part 38 connected to the chip plate part 36 through a universal connection part 37 in a direction crossing the chip plate part 36. The chip plate part 36 generates a shade signal SLS, for example, by outside light LL in a state that peripheral light intensity is large, so that the shadow signal LSL is detected as a light signal LS in an input image detection part 40. When detecting the shadow signal SLS, an image display signal Sdim is generated by reversing a detection result in the input image detection part 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides an input pen that can be applied to a liquid crystal display electronic device that displays a display image in parallax, and a liquid crystal display electronic that can display an input image input by applying such an input pen. Regarding equipment.

  As a display form of a conventional electronic device, for example, a form in which two different images are displayed in two different directions by a single display screen (see, for example, Patent Document 1 and Patent Document 2) has been proposed. Yes. However, only two images are displayed, and it is not possible to directly perform an input operation on the electronic device on the spot, and there is a problem that different image inputs from two different directions cannot be performed.

  Or the thing of the form provided with a two-dimensional / three-dimensional display function is known (for example, refer to patent documents 3). However, in this case, there is a problem that different images cannot be displayed for a plurality of users in different directions.

  In addition, as an input form of a conventional electronic device, for example, an input using an electronic pen (see, for example, Patent Document 4), or an input form using a touch panel (for example, Patent Document 5). Patent Document 6) is known. However, the input form in these electronic devices is based on operation from a single direction, and does not allow two different inputs from different users from two different directions, but different uses from two directions. It is difficult to allow different inputs by a person.

  As described above, in the conventional electronic device, since it is not possible to adopt an input form that allows different inputs (operations) from two different directions, display images that are different in different directions corresponding to different input images from different directions. Could not be displayed.

  Therefore, in the conventional electronic device, single use is a principle, and it is possible to perform different image display (information display) for a plurality (two people) of users at opposite positions by operating from two opposite directions at the same time. There is a problem that it is difficult and an effective function (for example, two-screen display by parallax control) cannot be fully utilized.

  In addition, in a liquid crystal display electronic device that performs liquid crystal display by parallax control, it is difficult to input an image through parallax control, and it is difficult to input an image without omission.

Furthermore, since conventional image input is performed by applying the above-described electronic pen or touch panel, it is difficult to utilize parallax control, and image input via the input pen and parallax control is difficult. It was.
JP 2007-206108 A JP 2005-78080 A JP 2004-112174 A JP-A-9-34638 JP 2000-132338 A JP 2006-251927 A

  The present invention has been made in view of such a situation, and it is possible to input and detect an input image in a state of being subjected to parallax control to a liquid crystal display electronic device that displays parallax of a display image by parallax control. An object is to provide a simple input pen.

  In addition, the present invention is a liquid crystal display electronic device including a parallax control unit, wherein a parallax display of a display image is performed by the parallax control unit, and input of the input image is permitted and detected via the parallax control unit. It is another object of the present invention to provide a liquid crystal display electronic device that can easily and highly accurately input an input image by applying the input pen according to the invention.

  An input pen according to the present invention is arranged so as to overlap a liquid crystal display unit and the liquid crystal display unit, and the liquid crystal display unit displays a first viewing direction display image in a first viewing direction, and in the second viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display a second viewing direction display image, an image input unit that is arranged so as to be superimposed on the parallax control unit and that receives an input image; An input image detection unit that detects an input image input to the image input unit in correspondence with the first viewing direction or the second viewing direction, and the first image according to the input image detected by the input image detection unit. An input pen applied to a liquid crystal display electronic device configured to display a viewing direction display image / the second viewing direction display image, the plate-shaped tip plate portion facing the image input portion, and the tip Connected to the tip plate in a direction intersecting the plate Characterized in that it comprises a Jo of the body.

  With this configuration, the tip plate can be brought into contact with the image input unit with high accuracy, and therefore, the tip image plate can be detected by the input image detection unit as an input image subjected to parallax control. Therefore, the liquid crystal display electronic device having the parallax control unit can easily detect the input image and display it as a display image.

  In the input pen according to the present invention, the tip plate part has a recognition mark detected by the input image detection part on a surface facing the image input part.

  With this configuration, the recognition mark can be detected as an optical signal by the input image detection unit, so that the liquid crystal display electronic device can easily and accurately detect the input image.

  In the input pen according to the present invention, the tip plate portion is formed of a light-transmitting material.

  With this configuration, the state of the recognition mark and the image input unit can be easily recognized from the outside, so that the operability can be improved.

  In the input pen according to the present invention, the recognition mark and the tip plate portion in a region corresponding to the recognition mark are formed of a translucent material.

  With this configuration, an optical signal corresponding to the recognition mark can be input to the image input unit, and the state of the image input unit at the position of the recognition mark can be easily recognized from the outside to operate the recognition mark with high accuracy. Therefore, it is possible to improve the accuracy and operability of image input.

  In the input pen according to the present invention, the recognition mark is formed of a half mirror that reflects external light with respect to the recognition mark.

  With this configuration, the shadow signal from the recognition mark can be input as an optical signal to the image input unit, and the state of the image input unit can be easily recognized from the outside, so that accuracy and operability can be improved. it can.

  In the input pen according to the present invention, the recognition mark is a circular shape having a diameter three times or more than a parallax control pitch of the parallax control unit.

  With this configuration, it is possible to prevent the input image from being lost by the parallax control unit and execute highly accurate image input.

  In the input pen according to the present invention, the recognition mark is formed of a regular polygon.

  With this configuration, it is possible to detect the directionality in a plurality of directions with high accuracy, and thus it is possible to input an input image having directionality.

  In the input pen according to the present invention, the number of vertices of the regular polygon is three.

  With this configuration, directionality can be detected with a simple shape and high accuracy.

  In the input pen according to the present invention, the tip plate portion is configured to be removable from the body portion.

  With this configuration, it is possible to switch the presence or absence of directionality by switching the front end plate portion, or to switch between two kinds of large and small recognition marks, and to switch operability or input accuracy (detection accuracy). .

  The input pen according to the present invention includes a light emitting unit built in the body unit and a light guide for guiding an optical signal from the light emitting unit as an input image to the image input unit. .

  With this configuration, it is possible to form an input image easily and with high accuracy, and therefore it is possible to input the input image easily and with high accuracy.

  In the input pen according to the present invention, the light emission color of the light emitting unit is any one of red, blue, green, and white.

  With this configuration, it becomes possible to identify an optical signal based on a combination of a color filter and a light emission color that the liquid crystal display unit has, and therefore it is possible to input an input image easily and with high accuracy.

  In the input pen according to the present invention, the light emission color of the light emitting unit can be switched between two or more of red, blue, green, and white.

  With this configuration, it becomes possible to identify an optical signal based on a combination of a color filter and a light emission color that the liquid crystal display unit has, and therefore it is possible to input an input image easily and with high accuracy.

  Further, the input pen according to the present invention is characterized in that the light emission color of the light emitting unit is configured to be switchable in white.

  With this configuration, the input image can be evenly incident on the color filter of the liquid crystal display unit, so that it is possible to easily and accurately detect the image input related to the characters.

  In the input pen according to the present invention, the body part is connected to the tip plate part through a universal connection part that is attached to the tip plate part and freely bends the body part. .

  With this configuration, it is possible to improve the followability with respect to the surface of the image input unit when operated by the operator, and an input pen capable of inputting an image with high accuracy and good operability can be obtained.

  In addition, a liquid crystal display electronic device according to the present invention includes a liquid crystal display unit and a liquid crystal display unit that is arranged so as to overlap the liquid crystal display unit, and the liquid crystal display unit displays a first viewing direction display image in the first viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display a second viewing direction display image in the two viewing directions, and an image that is arranged to overlap the parallax control unit and that receives an input image An input unit, an input image detection unit that detects an input image input to the image input unit in association with the first viewing direction or the second viewing direction, and an input image detected by the input image detection unit The liquid crystal display electronic device is configured to display the first viewing direction display image / the second viewing direction display image, and the input image is input to the image input unit with the input pen according to the present invention. Characterized by being configured to be executed

  With this configuration, a liquid crystal display electronic device that can easily and highly accurately input an input image subjected to parallax control to an image input unit and display the input image as a display image is provided. it can.

  The liquid crystal display electronic device according to the present invention further includes an image display signal generation unit that performs image calculation processing on the input image detected by the input image detection unit to generate an image display signal corresponding to the input image, and the liquid crystal display The display unit includes a liquid crystal driving unit that displays the first viewing direction display image / the second viewing direction display image according to the image display signal.

  With this configuration, the input image can be displayed as a display image easily and with high accuracy.

  According to the input pen of the present invention, the liquid crystal display unit and the liquid crystal display unit arranged to overlap the liquid crystal display unit display the first viewing direction display image in the first viewing direction, and the second viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display the second viewing direction display image, an image input unit that is arranged to be superimposed on the parallax control unit, and that receives an input image, and an image input An input image detection unit that detects an input image input to the unit corresponding to the first viewing direction or the second viewing direction, and a first viewing direction display image / second image according to the input image detected by the input image detection unit. An input pen applied to a liquid crystal display electronic device configured to display a viewing direction display image, a plate-shaped tip plate portion facing the image input portion, and a tip plate portion in a direction crossing the tip plate portion And a rod-like body part connected to the tip The image input unit can be brought into contact with the image input unit with high accuracy, and the distal end plate unit can be detected as an input image subjected to the parallax control by the input image detection unit. The liquid crystal display electronic device can easily detect an input image and display it as a display image.

  In addition, according to the liquid crystal display electronic device according to the present invention, the liquid crystal display unit and the liquid crystal display unit arranged so as to overlap the liquid crystal display unit display the first viewing direction display image in the first viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display the second viewing direction display image in the two viewing directions, and an image input unit that is arranged to be superimposed on the parallax control unit and that receives the input image An input image detection unit that detects the input image input to the image input unit in correspondence with the first viewing direction or the second viewing direction, and a first viewing direction display according to the input image detected by the input image detection unit Since the liquid crystal display electronic device is configured to display an image / second viewing direction display image, the input image input to the image input unit is configured to be executed by the input pen according to the present invention. Input with parallax control to the input image detector Can execute an input image with ease and high accuracy can be displayed input image as a display image to the liquid crystal display electronic device capable.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
A liquid crystal display electronic device according to the present embodiment will be described with reference to FIGS. 1A to 2C.

  FIG. 1A is a plan view conceptually showing a schematic configuration of a liquid crystal display electronic device according to Embodiment 1 of the present invention and a display state subjected to parallax control. 1B is a perspective side view transparently showing a side surface state of the liquid crystal display electronic device shown in FIG. 1A viewed from the arrow X direction.

  The liquid crystal display electronic device 1 according to the present embodiment includes a liquid crystal display unit 10 and a first viewing direction EDf and a second viewing direction which are arranged to overlap the liquid crystal display unit 10 and the liquid crystal display unit 10 in the casing 1c. And a parallax control unit 20 that performs parallax control on the liquid crystal display unit 10 so as to display different display images DIM toward the viewing direction EDs.

  That is, the parallax control unit 20 displays the first viewing direction display image DIMf toward the first viewing direction EDf, and the second viewing direction display image different from the first viewing direction display image DIMf toward the second viewing direction EDs. Parallax control is performed so as to display DIMs.

  Note that the parallax control in the parallax control unit 20 can be executed by controlling the alignment direction of the liquid crystal molecules.

  A display image DIM that is viewed in the first viewing direction EDf is referred to as a first viewing direction display image DIMf, and a display image DIM that is viewed in the second viewing direction EDs is illustrated as a second viewing direction display image DIMs. By causing the parallax control unit 20 to function, for example, a triangular figure can be displayed as the first viewing direction display image DIMf, and a circular figure can be displayed as the second viewing direction display image DIMs, for example. . In other words, the image can be displayed via the parallax control (the parallax control unit 20).

  Note that the graphic state of the display image DIM shown here is shown to explain parallax display (display of different display images DIM in different directions) by parallax control.

  If there is no need to particularly distinguish the first viewing direction EDf and the second viewing direction EDs, hereinafter, the viewing direction ED may be simply referred to as “viewing direction ED”. In addition, when there is no need to particularly distinguish the first viewing direction display image DIMf and the second viewing direction display image DIMs, hereinafter, the viewing direction DIM may be simply referred to as “viewing direction DIM”.

  The first viewing direction display image DIMf is viewed by the first viewing direction operator OPf, and the second viewing direction display image DIMs is viewed by the second viewing direction operator OPs. If there is no need to particularly distinguish the first viewing direction operator OPf and the second viewing direction operator OPs, hereinafter, the operator may be simply referred to as the operator OP.

  The liquid crystal display electronic device 1 is configured to allow image input in a state controlled by parallax control corresponding to the parallax display function in addition to the parallax display function in the liquid crystal display unit 10. In other words, the image input unit 30 includes the input allowable area 31 that is arranged so as to be superimposed on the parallax control unit 20 and is allowed to input the input image WIM.

  Therefore, the input input image WIM is separately recognized by the parallax control unit 20 as the first viewing direction input image WIMf and the second viewing direction input image WIMs corresponding to the first viewing direction EDf and the second viewing direction EDs. Is possible. That is, the image can be input via the parallax control (the parallax control unit 20).

  When there is no need to particularly distinguish the first viewing direction input image WIMf and the second viewing direction input image WIMs, hereinafter, the input image WIM may be simply referred to as “input image WIM”.

  Further, the parallax control for the input image WIM by the parallax control unit 20 can be executed by controlling the alignment direction of the liquid crystal molecules of the parallax control unit 20 (see FIG. 2A).

  Image input to the image input unit 30 is executed by, for example, the input pen 35 (a first input pen 35f operated by the first viewing direction operator OPf, a second input pen 35s operated by the second viewing direction operator OPs). The If there is no particular need to distinguish between the first input pen 35f and the second input pen 35s, hereinafter, the input pen 35 may be simply referred to as the input pen 35. The details of the input pen 35 will be described in the second and third embodiments.

  In addition, the liquid crystal display electronic device 1 includes an input image detection unit 40 that detects an input image WIM that is arranged and input corresponding to the input allowable area 31 in correspondence with the first viewing direction EDf or the second viewing direction EDs; An image display signal generation unit 50 that performs image calculation processing on the input image WIM detected by the input image detection unit 40 to generate an image display signal Sdim corresponding to the input image WIM.

  The liquid crystal display unit 10 includes a display control liquid crystal layer 11 and a liquid crystal drive unit 13 that drives the display control liquid crystal layer 11, and the liquid crystal drive unit 13 drives the display control liquid crystal layer 11 according to the image display signal Sdim. The display image DIM (first viewing direction display image DIMf / second viewing direction display image DIMs) is displayed. A backlight 15 is disposed on the back surface of the liquid crystal display unit 10.

  That is, the liquid crystal display electronic device 1 detects the input image WIM subjected to the parallax control by the parallax control unit 20 in correspondence with the first viewing direction EDf and the second viewing direction EDs, and thus detects the parallax. Display images DIM (first viewing direction display image DIMf, second viewing direction display image DIMs) corresponding to the input image WIM detected by performing control can be displayed easily and with high accuracy.

  FIG. 1A shows a state in which a triangular first viewing direction input image WIMf is input to the first viewing direction input allowable area 31f and displayed as it is as the first viewing direction display image DIMf in the first display area 10f. In addition, a circular second viewing direction input image WIMs is input to the second viewing direction input allowable area 31s and is displayed as the second viewing direction display image DIMs as it is in the second display area 10s. In this case, the image input state corresponds to FIG. 2A, and the image display state corresponds to FIG. 2B.

  Therefore, the display image DIM (corresponding to the input images WIM (first viewing direction input image WIMf, second viewing direction input image WIMs) respectively input in the first viewing direction EDf and the second viewing direction EDs by performing the viewing control. Since the first viewing direction display image DIMf and the second viewing direction display image DIMs) can be viewed in the corresponding first viewing direction EDf and second viewing direction EDs, respectively, a functional image corresponding to a plurality of operators OP. An excellent liquid crystal display electronic device 1 capable of inputting and displaying images can be obtained.

  The input permissible area 31 includes a first viewing direction input permissible area 31f and a second viewing direction input permissible area 31s arranged at positions facing each other. Therefore, image input corresponding to the first viewing direction EDf and the second viewing direction EDs is possible, and thus different operators OP (first from different positions corresponding to the first viewing direction EDf and the second viewing direction EDs). Different image inputs by the first viewing direction operator OPf corresponding to the viewing direction EDf and the second viewing direction operator OPs corresponding to the second viewing direction EDs can be permitted. Note that if there is no need to particularly distinguish the first viewing direction input allowable area 31f and the second viewing direction input allowable area 31s, the input allowable area 31 may be simply referred to below.

  The liquid crystal display electronic device 1 is arranged corresponding to the first viewing direction EDf (first viewing direction operator OPf) and receives a first operation unit 60f that receives an operation by the first viewing direction operator OPf, and the second viewing direction EDs. (Second viewing direction operator OPs) and a second operation unit 60s that receives an operation by the second viewing direction operator OPs.

  Therefore, the functions can be individually operated in each of the first viewing direction EDf or the second viewing direction EDs, and the liquid crystal display electronic device 1 having excellent operability and functionality can be obtained. If there is no need to distinguish between the first operation unit 60f and the second operation unit 60s, hereinafter, the operation unit 60 may be simply used.

  The liquid crystal display unit 10 displays the first viewing direction display image DIMf corresponding to the first viewing direction input image WIMf that is arranged corresponding to the first viewing direction input permission region 31f and is input to the first viewing direction input permission region 31f. The first viewing area 10f to be displayed and the second viewing direction display corresponding to the second viewing direction input image WIMs arranged corresponding to the second viewing direction input allowing area 31s and input to the second viewing direction input allowing area 31s. A second display area 10s for displaying image DIMs.

  Therefore, a display image (first viewing direction display image corresponding to the first viewing direction input image WIMf to the first viewing direction input allowable region 31f and the second viewing direction input image WIMs to the second viewing direction input allowable region 31s. DIMf and second viewing direction display images DIMs) can be displayed, respectively, and the convenient liquid crystal display electronic device 1 can easily check the input image.

  Further, the liquid crystal display unit 10 includes a third display region 10t between the first display region 10f and the second display region 10s, and the third display region 10t is first visually recognized in the first viewing direction EDf. The direction display image DIMf (for example, a triangular figure) and the second viewing direction display image DIMs (for example, a circular figure) visually recognized in the second viewing direction EDs are configured to be displayed as the display image DIM.

  Therefore, by displaying the display image DIM in the third display area 10t different from the first display area 10f and the second display area 10s, the first visual recognition direction display image DIMf is visually recognized from the first visual recognition direction EDf. The second viewing direction display image DIMs can be viewed from the two viewing directions EDs. That is, in the third display area 10t, which is a single display area, it is possible to display different figures by parallax control corresponding to the first viewing direction EDf and the second viewing direction EDs, respectively. It can be set as the liquid crystal display electronic device 1 excellent in functionality.

  The first display area 10f, the second display area 10s, and the third display area 10t constitute an image display surface 10d. In addition, the display image DIM (first viewing direction display image DIMf, second viewing direction display image DIMs) displayed in the third display region 10t can be interchanged by performing image calculation processing. Such image calculation processing can be executed by the image calculation processing unit 6 shown in the fifth embodiment.

  FIG. 2A conceptually shows an input state of an image in the first viewing direction by enlarging the cross-sectional state of the region Y1 (first display region, first viewing direction input allowable region) of the liquid crystal display electronic device shown in FIG. 1B. It is input concept explanatory drawing shown in these. FIG. 2B is a display conceptual diagram conceptually illustrating a display state when the image input in FIG. 2A is displayed / viewed in the first viewing direction.

  A region Y1 of the liquid crystal display electronic device illustrated in FIG. 1B corresponds to a cross section of the liquid crystal display unit 10 in the first viewing direction input allowable region 31f. Therefore, the image input unit 30, the parallax control unit 20, the liquid crystal display unit 10 (first display region 10f), and the backlight 15 are sequentially stacked from the front side. The liquid crystal display unit 10 includes an input image detection unit 40 (first visual direction input image detection unit 40f).

  In addition, an image is input to the first viewing direction input allowable area 31f by an optical signal LS from the first input pen 35f operated by the first viewing direction operator OPf in the first viewing direction EDf.

  The image input unit 30 is formed of, for example, a translucent thin plate, and input of the optical signal LS (first viewing direction input image WIMf) from the first input pen 35f is allowed. The optical signal LS is subjected to parallax control by the parallax control unit 20, and only a part of the optical signal LS input corresponding to the first viewing direction input allowable area 31f passes through the parallax control unit 20 (first viewing direction input image). The optical signal LS corresponding to WIMf passes) and enters the color filter 14 of the liquid crystal display unit 10.

  The optical signal LS incident on the color filter 14 passes through the display control liquid crystal layer 11 of the liquid crystal display unit 10 and is input to the input image detection unit 40 (first visual direction input image detection corresponding to the first visual direction input allowable region 31f. Part 40f).

  The parallax control unit 20 includes a parallax control liquid crystal layer 21 and is configured to execute parallax control on the optical signal LS by controlling the alignment direction of liquid crystal molecules. The parallax control liquid crystal layer 21 can be composed of, for example, duty liquid crystal.

  The parallax control liquid crystal layer 21 includes parallax control liquid crystal layers 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j, 21k, and 21m as parallax control barriers. The optical signals LS are shown as being incident on the parallax control liquid crystal layers 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j, 21k, and 21m, respectively.

  In the parallax control, for example, the parallax control liquid crystal layers 21a, 21c, 21e, 21g, 21i, and 21k as parallax control barriers transmit the optical signal LS from the first viewing direction EDf, while the parallax control as parallax control barriers. The liquid crystal layers 21b, 21d, 21f, 21h, 21j, and 21m are executed by blocking the optical signal LS from the first viewing direction EDf.

  That is, when the input image WIM is input, the arrangement direction of the liquid crystal molecules of the parallax control barrier (parallax control liquid crystal layer 21) is alternately controlled in the opposite direction so that the optical signal LS is alternately transmitted through the parallax control barrier. Parallax control. Therefore, the optical signal LS passing through the parallax control unit 20 is input to the liquid crystal display unit 10 (color filter 14) from the first viewing direction.

  The parallax control liquid crystal layers 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j, 21k, and 21m are equally divided and arranged to constitute the parallax control pitch Pp. The resolution in the parallax control for the input image is defined by the parallax control pitch Pp.

  Accordingly, among the optical signals LS input from the first viewing direction EDf toward the first viewing direction input allowable area 31f, the optical signal LS passing through the parallax control unit 20 is incident on the color filter 14 of the liquid crystal display unit 10. Further, the light passes through the display control liquid crystal layer 11.

  The display control liquid crystal layer 11 is made to correspond to the parallax control barrier (parallax control pitch Pp) of the parallax control unit 20, for example, the display control liquid crystal layers 11a, 11b, 11c, 11d, 11e, 11f, 11g, 11h, 11i, and 11j. , 11k. The arrangement direction of the liquid crystal molecules in the display control liquid crystal layer 11 is controlled in the same manner as the arrangement direction of the liquid crystal molecules in the parallax control liquid crystal layer 21.

  That is, the display control liquid crystal layers 11a, 11c, 11e, 11g, 11i, and 11k transmit the optical signal LS from the first viewing direction EDf in the same manner as the parallax control liquid crystal layers 21a, 21c, 21e, 21g, 21i, and 21k. Thus, the alignment direction of the liquid crystal molecules is controlled.

  Further, in the display control liquid crystal layers 11b, 11d, 11f, 11h, and 11j, the liquid crystal molecules are configured to block the optical signal LS from the first viewing direction EDf in the same manner as the parallax control liquid crystal layers 21b, 21d, 21f, 21h, and 21j. The direction of the array is controlled. Therefore, the optical signal LS can be blocked with high accuracy, and the input image can be detected with high accuracy.

  The optical signal LS transmitted through the display control liquid crystal layers 11a, 11c, 11e, 11g, 11i, and 11k is incident on the first viewing direction input image detection unit 40f (input image detection unit 40).

  The first viewing direction input image detection unit 40f receives and detects the optical signal LS as the first viewing direction input image WIMf in the first viewing direction input allowable area 31f. That is, the first viewing direction input image detection unit 40f can detect the first viewing direction input image WIMf (FIG. 2A). The first viewing direction input image WIMf corresponds to the locus of the optical signal LS by the first input pen 35f.

  The input image detection unit 40 (first viewing direction input image detection unit 40f) detects the input image WIM (first viewing direction input image WIMf) input by the input pen 35 (first input pen 35f). 41 (photoelectric conversion elements 41a, 41b, 41c, 41d, 41e, 41f, 41g arranged corresponding to the display control liquid crystal layers 11a, 11b, 11c, 11d, 11e, 11f, 11g, 11h, 11i, 11j, 11k 41h, 41i, 41j, and 41k, hereinafter, photoelectric conversion elements 41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i, 41j, and 41k are simply referred to as photoelectric conversion elements. 41.).

  Therefore, the input image WIM can be detected easily and with high accuracy. Note that the photoelectric conversion element 41 is desirably arranged in correspondence with the pixels of the display control liquid crystal layer 11. That is, the liquid crystal display unit 10 is composed of a liquid crystal display device with a built-in photosensor.

  In the first viewing direction input image detection unit 40f, an effective area 40v is set in order to delimit the detection range of the input image. For example, when the range of the photoelectric conversion element 41b to the photoelectric conversion element 41j is the effective area 40v, the photoelectric conversion element 41a and the photoelectric conversion element 41k are set invalid in advance because they are out of the effective area 40v.

  That is, the photoelectric conversion element 41 (the photoelectric conversion element 41a and the photoelectric conversion element 41k) can be omitted. That is, the optical signal LS input outside the first visual recognition direction input allowable region 31f does not need to be detected, so that even if it is incident on the first visual recognition direction input image detection unit 40f, it is an effective optical signal LS. Is not detected.

  Therefore, in the present embodiment, only the photoelectric conversion elements 41c, 41e, 41g, and 41i function as the photoelectric conversion element 41, and the optical signal LS is detected as the first viewing direction input image WIMf.

  When executing the image input, it is possible to input the input image WIM accurately by inputting the image within the range corresponding to the input allowable area 31. In other words, unnecessary image input can be avoided by inputting corresponding to the input allowable area 31.

  The first viewing direction input image WIMf detected by the first viewing direction input image detection unit 40f (photoelectric conversion elements 41c, 41e, 41g, and 41i) is transmitted to the image display signal generation unit 50. The image display signal generation unit 50 performs image calculation processing on the first viewing direction input image WIMf to generate an image display signal Sdim corresponding to the first viewing direction input image WIMf.

  The generated image display signal Sdim is transmitted from the image display signal generation unit 50 to the liquid crystal drive unit 13, and the liquid crystal drive unit 13 drives the display control liquid crystal layer 11 according to the image display signal Sdim. The display control liquid crystal layer 11 driven by the liquid crystal driving unit 13 can display the first viewing direction display image DIMf corresponding to the first viewing direction input image WIMf (FIG. 2B).

  That is, the first viewing direction operator OPf first views the first viewing direction display image DIMf corresponding to the first viewing direction input image WIMf input from the first viewing direction EDf (first viewing direction input allowable area 31f). It can be visually recognized in the direction EDf (first display region 10f).

  When the display control liquid crystal layer 11 is driven by the liquid crystal driving unit 13, the arrangement direction of the liquid crystal molecules in the display control liquid crystal layer 11 is controlled in the same manner as the parallax control liquid crystal layer 21. With this configuration, it is possible to match the parallax control by the parallax control liquid crystal layer 21 at the time of image input and at the time of image display, and high-precision parallax control can be executed.

  The parallax control unit 20 performs parallax control by controlling the arrangement direction of the liquid crystal molecules of the parallax control liquid crystal layer 21 included in the parallax control unit 20, and the arrangement direction of the liquid crystal molecules of the display control liquid crystal layer 11 is determined according to the parallax control liquid crystal layer. It is desirable that the liquid crystal molecules be controlled in the same manner as the alignment direction of the liquid crystal molecules.

  For example, as described above, for the parallax control liquid crystal layers 21a, 21c, 21e, 21g, 21i, and 21k, the alignment direction of the liquid crystal molecules is controlled in a direction that transmits the optical signal LS from the first viewing direction EDf, For the parallax control liquid crystal layers 21b, 21d, 21f, 21h, 21j, and 21m, the alignment direction of the liquid crystal molecules is controlled in a direction that blocks the optical signal LS from the first viewing direction EDf.

  Further, the display control liquid crystal layers 11a, 11c, 11e, 11g, 11i, and 11k are controlled by controlling the alignment direction of the liquid crystal molecules similarly to the parallax control liquid crystal layers 21a, 21c, 21e, 21g, 21i, and 21k. The optical signal LS from the first viewing direction EDf is incident on the input image detection unit 40, and the parallax control liquid crystal layers 21b, 21d, 21f, and 21h are applied to the display control liquid crystal layers 11b, 11d, 11f, 11h, and 11j. , 21j, and 21m, the optical signal LS from the first viewing direction EDf is prevented from entering the input image detection unit 40 by controlling the alignment direction of the liquid crystal molecules.

  Therefore, the display control liquid crystal layer 11 can easily transmit the input image WIM that has been input in the same manner as the parallax control unit 20, so that the input image WIM can be accurately and clearly displayed by the input image detection unit 40. Can be detected.

  The input image detection unit 40 is configured to detect the input image WIM via the display control liquid crystal layer 11, and is configured to control the alignment direction of the liquid crystal molecules in the display control liquid crystal layer 11 when the input image WIM is input. It is desirable to be.

  For example, in the state in which the operation unit 60 is operated to set the image input mode, the alignment direction of the liquid crystal molecules in the display control liquid crystal layer 11 can be synchronized with the alignment direction of the liquid crystal molecules in the parallax control liquid crystal layer 21. Further, when the image input mode is not set, when any of the photoelectric conversion elements 41 arranged in the input image detection unit 40 detects the optical signal LS, it is determined that the image input is started and the display control liquid crystal layer It is possible to control the alignment direction of 11 liquid crystal molecules.

  Therefore, the optical signal LS corresponding to the input image WIM can be transmitted through the display control liquid crystal layer 11 with high accuracy, and the input image WIM can be detected with high accuracy by the input image detection unit 40. The input image WIM can be input with high accuracy.

  The input allowable area 31 is desirably set narrower than the effective area 40v of the input image detection unit 40. With this configuration, it is possible to prevent omission when detecting the input image WIM, and the input image WIM can be detected with high accuracy.

  The input allowable area 31 is moved in the first viewing direction EDf toward the first viewing direction EDf with respect to the effective area 40v (the photoelectric conversion element 41b to the photoelectric conversion element 41j) of the input image detection unit 40. It is desirable. Similarly, in the second viewing direction EDs, it is desirable that the input allowable area 31 is moved in the second viewing direction EDs in accordance with the parallax control pitch of the parallax control liquid crystal layer 21. Note that the direction is simply reversed with respect to the second viewing direction EDs, and the illustration is omitted. With this configuration, it is possible to reliably prevent omission when detecting the input image WIM, and it is possible to reduce a region where input of the input image WIM is invalid.

  The interval L3 from the image input unit 30 to the input image detection unit 40 and the interval L2 from the parallax control unit 20 to the input image detection unit 40 are adjusted in advance so that the parallax control is normally executed. For example, the interval L1 between the surface of the image input unit 30 and the parallax control liquid crystal layer 21 is desirably set to an integral multiple of the interval L2 from the parallax control unit 20 to the input image detection unit 40.

  For example, with respect to the incident position of the optical signal LS in the input allowable area 31, the parallax control liquid crystal layer 21 (for example, each of the divided areas 21a, 21b,... Corresponding to the pixel) and the input image detection unit 40 (for example, each photoelectric By arranging the positional relationship of the conversion elements 41a, 41b,... On a straight line (optical signal LS), the visual recognition direction ED can be accurately defined.

  Therefore, the first visual direction EDf or the second visual direction EDs can be defined with high accuracy and the input image WIM can be detected easily and with high accuracy by the input image detection unit 40. It can be set as the liquid crystal display electronic device 1 which can suppress and perform highly accurate image input and highly accurate image display.

  The image display signal generation unit 50 displays the image display signal Sdim so that the first viewing direction display image DIMf or the second viewing direction display image DIMs is viewed in correspondence with the position where the input image WIM of the image input unit 30 is input. It is desirable to generate

  For example, the liquid crystal driving unit 13 drives the display control liquid crystal layer 11 (11c, 11e, 11g, 11i) corresponding to the photoelectric conversion elements 41c, 41e, 41g, 41i that have detected the optical signal LS, thereby inputting the input image WIM. Can be reproduced with high accuracy as the display image DIMf.

  Therefore, it is only necessary to supply the image display signal Sdim to the liquid crystal drive unit 13 at a position corresponding to the position of the input image detection unit 40 that has detected the input image WIM, so that the image display signal Sdim can be easily generated. The display image (the first viewing direction display image DIMf or the second viewing direction display image DIMs) corresponding to the input image WIM can be displayed with high reproducibility.

  Note that the operations in the second display area 10s and the second viewing direction input allowable area 31s with respect to the second viewing direction EDs and the image calculation processing are the same as those in the first viewing direction EDf except that the viewing direction is simply different. Since there is, explanation is omitted.

  2C shows a display state when the cross-sectional state of the region Y2 (third display region) of the liquid crystal display electronic device shown in FIG. 1B is enlarged to display / view an image in the first viewing direction and the second viewing direction. It is a display concept explanatory drawing shown notionally.

  The area Y2 is different from the area Y1 only in the area of the liquid crystal display unit 10, and the basic configuration is the same as that of the area Y1 (FIGS. 2A and 2B). .

  In the third display area 10t, the liquid crystal driving unit 13 drives the display control liquid crystal layer 11 in accordance with the image display signal Sdim. Therefore, the display control liquid crystal layer 11 is in a display state corresponding to the image display signal Sdim. Further, as described above, the parallax control unit 20 (parallax control liquid crystal layer 21) is disposed between the display control liquid crystal layer 11 and the surface of the image input unit 30 (image display surface 10d). The display unit 10 displays a display image DIM corresponding to the parallax control by the parallax control unit 20.

  That is, in the first viewing direction EDf, the first viewing direction display image DIMf is displayed (viewed) by the parallax control by the parallax control unit 20, and in the second viewing direction EDs, the second viewing direction by the parallax control by the parallax control unit 20. Displayed (viewed) as display images DIMs.

  Therefore, the first viewing direction operator OPf in the first viewing direction EDf can view the first viewing direction display image DIMf (for example, a triangular figure) as the display image DIM displayed in the third display area 10t. The second viewing direction operator OPs in the second viewing direction EDs can view the second viewing direction display image DIMs (for example, a circular figure) as the display image DIM displayed in the third display region 10t. .

  As described above, in the state of FIG. 2A, the input image WIM input to the image input unit 30 having the input allowable area 31 where the input of the input image WIM is allowed is input to the input image detection unit 40 via the parallax control unit 20. This is detected (input image detection step). Further, an image calculation process is performed on the input image WIM detected in the input image detection step to generate an image display signal Sdim (image display signal generation step).

  2B and 2C, a display image DIM is displayed on the image display surface 10d in accordance with the image display signal Sdim (image display step).

  As described above, the liquid crystal display electronic device 1 according to the present embodiment is arranged to overlap the liquid crystal display unit 10 and the liquid crystal display unit 10, and the liquid crystal display unit 10 is in the first viewing direction toward the first viewing direction EDf. A display image DIMf is displayed, and a parallax control unit 20 that performs parallax control on the liquid crystal display unit 10 so as to display the second viewing direction display image DIMs toward the second viewing direction EDs, and is superimposed on the parallax control unit 20 And an input image detection unit that detects the input image WIM input to the image input unit 30 corresponding to the first viewing direction EDf or the second viewing direction EDs. 40 and the first visual direction display image DIMf / second visual direction display image DIMs are displayed according to the input image WIM detected by the input image detection unit 40.

  The liquid crystal display electronic device 1 according to the present embodiment is characterized in that the input image WIM is input to the image input unit 30 by the input pen 35. Therefore, input of the input image WIM subjected to parallax control to the input image detection unit 40 (image input unit 30) can be performed easily and with high accuracy, and the input image WIM can be displayed as the display image DIM. The liquid crystal display electronic device 1 can be obtained.

<Embodiment 2>
Based on FIG. 3A thru | or FIG. 9, the input pen which concerns on this Embodiment is demonstrated. Since the basic configuration is the same as that of the input pen 35 and the liquid crystal display electronic device 1 shown in the first embodiment, the description will be mainly made of items that are appropriately used.

  3A is a structural diagram showing a schematic structure of an input pen according to Embodiment 2 of the present invention, where FIG. 3A is a front view and FIG. 3B is a plan view.

  The input pen 35 according to the present embodiment is applied to the liquid crystal display electronic device 1 according to the first embodiment described above. In other words, the liquid crystal display unit 10 and the liquid crystal display unit 10 are arranged so as to overlap with each other, and the liquid crystal display unit 10 displays the first viewing direction display image DIMf toward the first viewing direction EDf and toward the second viewing direction EDs. A parallax control unit 20 that performs parallax control on the liquid crystal display unit 10 so as to display the second viewing direction display images DIMs, and an image input unit 30 that is arranged so as to be superimposed on the parallax control unit 20 and that receives the input image WIM. The input image WIM input to the image input unit 30 is detected in correspondence with the first viewing direction EDf or the second viewing direction EDs, and the input image WIM detected by the input image detection unit 40 Accordingly, the present invention is applied to the liquid crystal display electronic device 1 configured to display the first viewing direction display image DIMf / second viewing direction display image DIMs.

  The input pen 35 includes a plate-shaped tip plate portion 36 that faces the image input unit 30, and a rod-shaped body portion 38 that is connected to the tip plate portion 36 via a free connecting portion 37 in a direction intersecting the tip plate portion 36. With. Further, the tip plate portion 36 includes a pen tip direction mark 36d for displaying the pen tip. The pen tip direction mark 36d makes it possible to use the pen tip in a normal direction.

  Therefore, since the tip plate part 36 can be brought into contact with the image input unit 30 with high accuracy, the tip image plate part 36 is detected by the input image detection unit 40 as an input image WIM in a state of being subjected to parallax control. Therefore, the liquid crystal display electronic device 1 having the parallax control unit 20 can easily detect the input image WIM and display it as the display image DIM.

  In the state where the peripheral light intensity is bright, the front end plate portion 36 generates, for example, a shadow signal SLS by the external light LL, so that the input image detection unit 40 can detect the shadow signal LSL as the light signal LS. When detecting the shadow signal SLS, the image display signal Sdim can be generated by inverting the detection result of the input image detection unit 40.

  That is, the shadow signal SLS generated by the shape of the tip plate portion 36 can be detected as the optical signal LS, so that the input image WIM can be easily input. The shape of the tip plate portion 36 will be described with reference to FIG.

  Further, the front end plate portion 36 has a recognition mark 36 s detected by the input image detection portion 40 on the surface facing the image input portion 30. In this case, it is possible to generate the optical signal LS corresponding to the recognition mark 36s. That is, when the recognition mark 36s is formed of, for example, a phosphorescent phosphor, it is possible to generate the optical signal LS. The recognition mark 36s may be configured to reflect light having a specific wavelength (for example, red / blue / green) in addition to the phosphor, and to detect light having a specific wavelength by the input image detection unit 40. Is possible. Details of the recognition mark 36s will be described with reference to FIGS. 5A to 5D.

  With this configuration, the recognition mark 36 s can be detected as the optical signal LS by the input image detection unit 40, so that the liquid crystal display electronic device 1 can easily and accurately detect the input image WIM. .

  Further, the tip plate portion 36 can be formed of a light-transmitting material (for example, a synthetic resin that transmits visible light). In this case, the state of the recognition mark 36s and the image input unit 30 can be easily recognized from the outside (the body 38, that is, the operator OP side), so that the operability can be improved. it can. At this time, since the shadow signal SLS is not generated by the tip plate portion 36, the recognition mark 36s is formed, for example, as the shadow signal SLS as an optical signal LS or as an optical signal LS from a phosphorescent phosphor or the like. It becomes.

  The recognition mark 36 s and the tip plate portion 36 in the region corresponding to the recognition mark 36 s can be formed of a translucent material. In this case, the front end plate portion 36 in a region other than the region corresponding to the recognition mark 36s is light-shielding, and an optical signal LS corresponding to the recognition mark 36s can be input to the image input unit 30. Since the state of the image input unit 30 at the position of 36s can be easily recognized from the outside and the recognition mark 36s can be operated with high accuracy, the accuracy and operability of image input can be improved.

  The recognition mark 36s may be formed of a half mirror that reflects external light with respect to the recognition mark 36s. In this case, the shadow signal SLS by the recognition mark 36s is input to the image input unit 30 as the optical signal LS, and the state of the image input unit 30 can be easily recognized from the outside. Can be improved.

  3B is a structural diagram illustrating a usage state of the input pen illustrated in FIG. 3A, in which (A) is a front view and (B) is a plan view.

  In the input pen 35 according to the present embodiment, the body portion 38 is connected to the distal end plate portion 36 via a universal connection portion 37 that is attached to the distal end plate portion 36 and freely bends the body portion 38. That is, the body part 38 can be freely moved in the bending direction MOV with respect to the tip plate part 36.

  Therefore, it is possible to improve the followability with respect to the surface of the image input unit 30 when operated by the operator OP, and the input pen 35 can input an image with high accuracy and good operability.

  The universal connecting portion 37 can be realized by applying, for example, a universal joint.

  4 is a plan view showing an example of the structure of the tip plate portion of the input pen shown in FIG. 3A, where (A) is a circle, (B) is a triangle, (C) is a square, and (D) is a trapezoid. Is the case.

  In the case of a circle, the line width detected by the input image detection unit 40 when the input pen 35 is moved can be made constant, which is suitable for inputting characters as an image, for example.

  Triangles, squares, and trapezoids have a certain directionality, and can be applied, for example, to a case where a characteristic unique to a figure (for example, designation of a character's course direction) is given in a game or the like.

  In particular, a polygon with a corner such as a triangle has a position (for example, an overall position), a direction (for example, an overall direction), and a plurality of angular directions (for example, a direction connecting the center of gravity to the corner). For example, it can be applied to the case where a characteristic unique to a figure (for example, designation of the position of the character, the course of the character, or the direction of a plurality of gun balls) is given.

  In particular, a regular polygon such as a square is centered on a position (for example, the entire position), a plurality of directions (for example, the entire direction), a plurality of angular directions (for example, a direction connecting the center of gravity to the corner), and the center of gravity. Since it has a rotation target (for example, if it is an equilateral triangle, it is 120 degree rotation symmetry, and if it is a square, it is a 90 degree rotation object), it has a characteristic unique to a figure (for example, a game using pen rotation matching). ) Can be applied.

  In particular, an arrow-shaped shape such as a trapezoid has a position (overall position), one direction (overall direction), and a plurality of angular directions (for example, a direction connecting the center of gravity and the corner). The present invention can be applied to a case where unique characteristics (for example, designation of a character position, a character course direction, and directions of a plurality of gun balls) are given.

  In particular, triangles such as isosceles triangles and equilateral triangles can be applied to the case of giving graphic specific characteristics with high accuracy.

  The distal end plate portion 36 is preferably configured to be removable from the body portion 38. With this configuration, it is possible to change the presence / absence of directionality by exchanging the tip plate portion 36, or to switch between two kinds of large and small recognition marks 36s, and to switch operability or input accuracy (detection accuracy). Can do.

  The detaching mechanism can be realized by arranging a screw mechanism between the distal end plate portion 36 and the universal coupling portion 37.

  5A is a plan view showing an example of a recognition mark formed on the circular tip plate portion shown in FIG. 4A. FIG. 5A is a small circle, FIG. 5B is a large circle, and FIG. Small ring shape, (D) is a large ring shape.

  When the recognition mark 36s is a small circle having a relatively small diameter with respect to the diameter of the tip plate portion 36 (FIG. 1A), the recognition mark 36s has a large diameter that is relatively close to the diameter of the tip plate portion 36. It is possible to improve the resolution as compared with the case of the large circle (FIG. 5B). That is, it is suitable when the parallax control pitch Pp is small.

  The recognition mark 36s having a small ring shape ((C) in the figure) has characteristics similar to those of the small circular recognition mark 36s, and the recognition mark 36s having a large ring shape ((D) in the same figure) is a large circular recognition mark 36s. Have the same characteristics. Further, a space in the center of the small or large ring-shaped recognition mark 36s is, for example, a light guide 39p (see Embodiment 3, FIG. 10A) when the light emitting unit 39 (see Embodiment 3, FIG. 10A) is applied. It becomes possible to use as.

  5B is a plan view showing an example of a recognition mark formed on the circular tip plate portion shown in FIG. 4A, where FIG. 5A is a small triangle, FIG. 5B is a large triangle, and FIG. A small triangular frame shape, (D) is a case of a large triangular frame shape.

  When the recognition mark 36s is a small triangle that is relatively small with respect to the diameter of the tip plate portion 36 (FIG. 2A), the recognition mark 36s is a large triangle that is relatively close to the diameter of the tip plate portion 36. The resolution can be improved as compared with the case ((B) in the same figure). That is, it is suitable when the parallax control pitch Pp is small.

  The recognition mark 36s having a small triangular frame shape (FIG. 10C) has the same characteristics as the small triangular recognition mark 36s, and the recognition mark 36s having a large triangular frame shape (FIG. 14D) is a large triangle. It has the same characteristics as the recognition mark 36s. In addition, the space in the center of the recognition mark 36s having a small triangular frame shape or a large triangular frame shape can be used as the light guide path 39p when the light emitting unit 39 is applied, for example.

  The recognition marks 36s of the small triangle (FIG. (A)), large triangle (B), small triangle frame (C), and large triangle frame (D) are as follows. These are preferably regular triangles (when the number of vertices as regular polygons is 3). With this configuration, directionality can be detected with a simple shape and high accuracy.

  FIG. 5C is a plan view showing an embodiment of the recognition mark formed on the circular tip plate portion shown in FIG. 4A, where FIG. 5A is a small square, FIG. 5B is a large square, and FIG. A small frame shape, (D) is a case of a large frame shape.

  When the recognition mark 36 s is a small square that is relatively small with respect to the diameter of the tip plate portion 36 ((A) in the same figure), the recognition mark 36 s is a large square that is relatively close to the diameter of the tip plate portion 36. The resolution can be improved as compared with the case ((B) in the same figure). That is, it is suitable when the parallax control pitch Pp is small.

  The recognition mark 36s having a small frame shape (FIG. 5C) has the same characteristics as the small square recognition mark 36s, and the recognition mark 36s having a large frame shape (FIG. 4D) is recognized as a large square. It has the same characteristics as the mark 36s. Further, the space in the center of the recognition mark 36s having a small frame shape or a large frame shape can be used as the light guide 39p when the light emitting unit 39 is applied, for example.

  As described above, the recognition mark 36s is preferably formed of a regular polygon. With this configuration, it is possible to detect the directionality in a plurality of directions with high accuracy, and thus it is possible to input an input image WIM having directionality.

  5D is a plan view showing an embodiment of a recognition mark formed on the circular tip plate portion shown in FIG. 4 (A), where (A) is a wedge shape, (B) is a trapezoid, and (C) is a stand. A wedge shape, (D) is a case of a house-shaped pentagon.

  In FIGS. 5B and 5C, the shape of the recognition mark 36s is a regular polygon, but other polygons may be used. For example, a wedge shape (FIG. (A)), a trapezoid (FIG. (B)), a wedge with a stand (FIG. (C)), a house-shaped pentagon (FIG. (D)), and the like can be used. . By using a polygon, the directionality of the input image WIM can be easily detected.

  FIG. 6 is a conceptual diagram showing the relationship between the size of the circular recognition mark shown in FIGS. 5A (A) / (B) and the size of the parallax control pitch of the parallax control unit, and (A) shows the diameter of the recognition mark. The conceptual diagram which shows the influence of the parallax control in the state which is made into the parallax control pitch, and (B) shows the influence of the parallax control in the state which made the diameter of the recognition mark the same as twice the parallax control pitch. Conceptual diagram, (C) is a conceptual diagram showing the influence of parallax control in a state where the diameter of the recognition mark is about three times the parallax control pitch, and (D) is four times the diameter of the recognition mark the parallax control pitch. It is a conceptual diagram which shows the influence of the parallax control in the state made into the same grade.

  As described with reference to FIG. 2A, the parallax control unit 20 is divided into a transmission region 20t that transmits the optical signal LS as the input image WIM and a light-shielding region 20s that shields light. It is assumed that photoelectric conversion elements 41 as elements of the input image detection unit 40 are arranged on a one-to-one basis corresponding to the parallax control pitch Pp (transmission region 20t).

  Therefore, the parallax control unit 20 detects the input image detection unit 40 through the parallax control unit 20 (transmission region 20t) according to the relationship between the diameter of the recognition mark 36s and the parallax control pitch Pp. There is a case where the light is shielded by the light shielding region 20s and is not detected by the input image detection unit 40.

  In other words, when the diameter of the recognition mark 36s is approximately the same as the parallax control pitch Pp ((A) in the figure), when the recognition mark 36s is superimposed on the parallax control unit 20 (the light shielding area 20s), the light shielding area 20s blocks the light. Since the optical signal LS as the input image WIM cannot be incident, the input image detection unit 40 cannot detect the optical signal LS normally.

  Further, when the diameter of the recognition mark 36s is approximately the same as twice the parallax control pitch Pp ((B) in the same figure), when the center of the recognition mark 36s is superimposed on the center of the translucent region 20t, the optical signal LS is transmitted. It can be detected by the input image detection unit 40. However, when the recognition mark 36s extends over the light-transmitting region 20t and the light-shielding region 20s, the optical signal LS may be small and detection by the input image detection unit 40 may be difficult. Further, in the state where the center of the recognition mark 36s is superimposed on the center of the light shielding region 20s, it is difficult for the input image detection unit 40 to normally detect the optical signal LS.

  Further, when the diameter of the recognition mark 36s is about the same as three times the parallax control pitch Pp ((C) in the same figure), when the center of the recognition mark 36s is superimposed on the center of the translucent region 20t, the optical signal LS is transmitted. The input image detection unit 40 can reliably detect the input image. Further, in the state where the center of the recognition mark 36s is superimposed on the center of the light shielding region 20s, the optical signal LS is transmitted by the light transmitting regions 20t on both sides of the light shielding region 20s. Can be detected.

  Further, when the diameter of the recognition mark 36s is approximately the same as four times the parallax control pitch Pp ((D) in the figure), the optical signal LS is reliably transmitted to the two light transmitting regions 20t regardless of the position of the recognition mark 36s. Since it can be transmitted, the input image detection unit 40 can detect the optical signal LS reliably and with high accuracy.

  As described above, it is desirable that the recognition mark 36 s has a circular shape having a diameter that is at least three times the size of the parallax control pitch Pp of the parallax control unit 20. With this configuration, the input image WIM can be prevented from being lost by the parallax control unit 20, and highly accurate image input can be executed.

  FIG. 7 is a conceptual diagram conceptually showing a state in which an optical signal by the circular recognition mark shown in FIGS. 6C and 6D is detected by the input image detection unit.

  When the diameter of the recognition mark 36s is three times or four times the parallax control pitch Pp, the input image detection unit 40 (photoelectric conversion element 41) can easily and accurately detect the optical signal LS as illustrated. It becomes possible.

  That is, when the diameter of the recognition mark 36s is approximately the same as 3 times the parallax control pitch Pp (the left recognition mark 36s in FIG. 7), the optical signal LS corresponding to the recognition mark 36s is at least one translucent light. It is detected by the input image detection unit 40 (photoelectric conversion element 41) in the region 20t.

  Similarly, when the diameter of the recognition mark 36s is about the same as four times the parallax control pitch Pp (the right recognition mark 36s in FIG. 7), the optical signal LS corresponding to the recognition mark 36s is at least one. The input image detection unit 40 (photoelectric conversion element 41) detects the light transmission region 20t.

  FIG. 8 is a conceptual diagram conceptually showing a state in which an input image detecting unit detects an optical signal by the polygonal recognition mark shown in FIGS. 5B (A) and 5D (B).

  When the thick area portion of the recognition mark 36s that is a polygon (triangle) corresponds to the input image detection unit 40, the input image detection unit 40 (photoelectric conversion element 41) detects the optical signal LS corresponding to the recognition mark 36s. It becomes possible.

  On the other hand, a thin region may exist in the recognition mark 36s that is a polygon. For example, a triangular polygon becomes thin in the height direction, and the detection of the optical signal LS in the input image detection unit 40 (photoelectric conversion element 41) may become unstable, and the directionality may not be detected (see FIG. 8 left recognition mark 36s).

  Therefore, in the case of a polygon, it is necessary to make the size with a margin with respect to the parallax control pitch Pp. The recognition mark 36s on the right side of FIG. 8 can be detected by the input image detection unit 40 (photoelectric conversion element 41) in a region close to the tip by providing a sufficient height.

  FIG. 9 is a conceptual diagram conceptually showing a state in which the input image input by the circular recognition mark shown in FIGS. 6C and 6D is detected by the input image detection unit, and FIG. It is a plane conceptual diagram which shows the locus | trajectory into which the image was input, (B) is a plane conceptual diagram which shows the extraction state of the input image calculated | required by the image calculation process based on the detection result in an input image detection part.

  The input image WIM is assumed to have been input linearly, for example, at the position of the arrow WW by the tip plate portion 36 (recognition mark 36s) (FIG. 9A). That is, the input image WIM corresponding to the recognition mark 36 s is input by the image input unit 30. The input image WIM is associated with a state in which the light-transmitting regions 25t (the input image detection unit 40, that is, the photoelectric conversion elements 41) and the light-shielding regions 25s are alternately arranged.

  Image calculation processing is performed on the input image WIM based on the detection result of the input image detection unit 40 (photoelectric conversion element 41) (FIG. 9B). That is, since there is no optical signal LS in the region corresponding to the light shielding region 25s, the state corresponding to the light shielding region 25s is subtracted as an image calculation process from the input image WIM corresponding to the recognition mark 36s.

  Therefore, finally, the shaded area in FIG. 9B is the input image WIM detected by the input image detection unit 40. Further, for example, the center line CL can be extracted by performing an image calculation process for extracting the center line on the finally detected input image WIM.

<Embodiment 3>
The input pen according to the present embodiment will be described based on FIGS. 10A and 10B. Since the basic configuration is the same as the characteristics of the input pen 35 shown in the second embodiment, the different features will be mainly described with appropriate reference.

  FIG. 10A is a front view showing a schematic structure of the input pen according to Embodiment 3 of the present invention. FIG. 10B is a front view showing a usage state of the input pen shown in FIG. 10A.

  The input pen 35 according to the present embodiment includes a light emitting unit 39 built in the body unit 38 and a light guide 39p that guides the optical signal LS from the light emitting unit 39 to the image input unit 30 as an input image WIM. . Therefore, since the input image WIM can be formed easily and with high accuracy, input of the input image WIM subjected to parallax control can be executed easily and with high accuracy.

  The light emitting unit 39 includes a light emission control switch 39s, a light emission control unit 39c, and a light emitting element 39d. The light emission control switch 39s operates the light emission control unit 39c, and the light emission control unit 39c drives the light emitting element 39d to generate an optical signal LS from the light emitting element 39d.

  Other configurations can be basically the same as those in the second embodiment. For example, the recognition mark 35s can be applied to grasp the state of the image input unit 30 from the outside. In addition, by matching the inclination of the body portion 38 with, for example, the viewing direction ED, the optical signal LS can be synchronized with the parallax control, and the input image WIM can be detected with high accuracy.

  The light emission color of the light emitting unit 39 can be any one of red, blue, green, and white. Therefore, since the optical signal LS can be identified by the combination of the color filter 14 and the emission color of the liquid crystal display unit 10, the input image WIM subjected to the parallax control can be input easily and with high accuracy. it can.

  The light emission color of the light emitting unit 39 can be switched between two or more of red, blue, green, or white. Therefore, since the optical signal LS can be identified by the combination of the color filter 14 and the emission color of the liquid crystal display unit 10, the input image WIM subjected to the parallax control can be input easily and with high accuracy. it can.

  In addition, the light emission color of the light emitting unit 39 can be configured to be switchable in white. Therefore, the input image WIM can be evenly incident on the color filter 14 included in the liquid crystal display unit 10, so that it is possible to easily and accurately detect image input related to characters.

  As described above, in the input pen 35 including the light emitting unit 39 shown in the present embodiment, the light emission output from the light emitting unit 39 is detected as it is as the optical signal LS by the input image detecting unit 40 (photoelectric conversion element 41).

  Therefore, it is possible to simplify the structure of the tip plate portion 36 and the recognition mark 36s.

<Embodiment 4>
A liquid crystal display electronic device according to the present embodiment will be described with reference to FIG. Since the basic configuration is the same as that of the liquid crystal display electronic device 1 shown in the first embodiment, the description will be made mainly with reference to different matters.

  FIG. 11 is a plan view showing an appearance of a liquid crystal display electronic device according to Embodiment 4 of the present invention, where (A) shows a state operated by two operators, and (B) shows one person. The state operated by the operator is shown.

  The liquid crystal display electronic device 1 is configured such that the input pen 35 can be stored on the back surface. Therefore, the operator OP can take out and operate the input pen 35 in a timely manner, and the liquid crystal display electronic device 1 having excellent operability and convenience can be obtained.

  Since other configurations are the same as those of the liquid crystal display electronic device 1 of the first embodiment, the description thereof is omitted.

<Embodiment 5>
A configuration of the liquid crystal display electronic device according to the present embodiment will be described with reference to FIG. Since the liquid crystal display electronic device according to the present embodiment is the same as the liquid crystal display electronic device 1 according to the first embodiment, the description of the first embodiment will be applied as appropriate. In addition, since it can be set as the same structure with respect to both the 1st visual recognition direction EDf and the 2nd visual recognition direction EDs, below, it demonstrates omitting a visual recognition direction suitably.

  FIG. 12 is a block diagram showing an outline of functional configuration blocks of the liquid crystal display electronic device according to the fifth embodiment of the present invention.

  The liquid crystal display electronic device 1 according to the present embodiment includes a control unit 5, an image calculation processing unit 6, and a storage unit 8 as a function configuration unit lock. Further, the liquid crystal display unit 10, the liquid crystal drive unit 13, the parallax control unit 20, the image input unit 30, the input image detection unit 40, the image display signal generation unit 50, and the operation unit 60 (operation input interface 61) are appropriately connected. .

  The liquid crystal display electronic device 1 further includes an input pen specification designating unit 6p in order to execute image calculation processing in accordance with the specification of the input pen 35. That is, it is possible to appropriately specify the specifications of the input pen 35 such as the shape of the tip plate portion 36 of the input pen 35 applied by the input pen specification specifying means 6p, the shape of the recognition mark 36s, the light emitting type, and the non-light emitting type. As a configuration.

  Therefore, the calculation formula of the image calculation process can be changed in accordance with the replacement of the front end plate portion 36 and the change of the recognition mark 36s. That is, it is possible to appropriately cope with a case where the recognition mark 36s of the input pen 35 is changed.

  The control unit 5 is configured by a central processing unit (CPU) and based on a computer program stored (installed) in the storage unit 8 in advance, the image arithmetic processing unit 6, the storage unit 8, and the liquid crystal display unit 10. In addition, the liquid crystal drive unit 13, the parallax control unit 20, the image input unit 30, the input image detection unit 40, the image display signal generation unit 50, and the operation unit 60 (operation input interface 61) are controlled and linked.

  The image calculation processing unit 6 performs various image calculation processes on the input image WIM detected by the input image detection unit 40. For example, a process of detecting the input image WIM input to the input allowable area 31 and displaying the detected input image WIM as the display image DIM on the image display surface 10d is executed. The image arithmetic processing can be basically executed by applying a computer program (image arithmetic processing program).

  The image arithmetic processing unit 6 employs an appropriate arithmetic expression according to the specification of the input pen 35 specified by the input pen specification specifying means 6p, and performs image arithmetic processing on the input image WIM.

  The image calculation processing unit 6 also includes an image display signal generation unit 50 that performs image calculation processing on the input image WIM detected by the input image detection unit 40 and generates an image display signal Sdim corresponding to the input image WIM. Prepare. In addition, an input image processing unit 6f and an image duplication processing unit 6s are provided.

  The input image processing unit 6f performs an image calculation process on the input image WIM (first viewing direction input image WIMf / second viewing direction input image WIMs) to display the display image DIM (first viewing direction display image DIMf / second viewing direction). Image signals necessary for displaying the display images DIMs) in the first display area 10f / second display area 10s are transmitted to the image display signal generation unit 50, and the first display area 10f / second display area 10s are transmitted to the first display area 10f / second display area 10s. The viewing direction display image DIMf (triangular shape displayed in the first display area 10f) / the circular shape displayed in the second viewing direction display image DIMs) is displayed (see FIG. 1A).

  The image duplication processing unit 6s performs image calculation processing on the input image WIM (first viewing direction input image WIMf / second viewing direction input image WIMs), and displays the display image DIM (first viewing direction display image DIMf / second viewing direction). The display image DIMs) is transmitted to the image display signal generator 50 to display an image signal necessary for displaying the third display area 10t in an enlarged manner, and the first viewing direction display image DIMf is displayed in the third display area 10t. (See FIG. 1A).

  The storage unit 8 is preinstalled with a computer program for executing each image processing described in the first embodiment. The image information of the input image WIM and the image information of the display image DIM can be temporarily stored as necessary.

  The functions of the liquid crystal display unit 10, the liquid crystal drive unit 13, the parallax control unit 20, the image input unit 30, and the input image detection unit 40 are as described in the first embodiment. Note that the image input can be performed on the image input unit 30 by using the light emitting input pen 35 disposed outside by the operator OP.

  Further, it is possible to execute an appropriate instruction from the operation unit 60 to the liquid crystal display electronic device 1. In order to simplify the configuration of the operation unit 60, the program is executed in a menu form in which a menu is displayed on the screen. An operation input interface 61 is arranged between the control unit 5 and the operation unit 60 in order to transmit an operation from the operation unit 60 to the control unit 5.

1 is a plan view conceptually showing a schematic configuration of a liquid crystal display electronic device according to Embodiment 1 of the present invention and a display state subjected to parallax control. FIG. 1B is a perspective side view transparently showing a side state of the liquid crystal display electronic device shown in FIG. 1A viewed from the arrow X direction. An input concept that conceptually shows the input state of an image in the first viewing direction by enlarging the cross-sectional state of the region Y1 (first display region, first viewing direction input allowable region) of the liquid crystal display electronic device shown in FIG. 1B. It is explanatory drawing. It is a display concept explanatory drawing which shows notionally a display state when displaying / visualizing a picture inputted in Drawing 2A in the 1st visual recognition direction. 1B conceptually shows a display state when an image is displayed / viewed in the first viewing direction and the second viewing direction by enlarging the cross-sectional state of the region Y2 (third display region) of the liquid crystal display electronic device shown in FIG. 1B. It is a display concept explanatory drawing. It is a structural diagram which shows schematic structure of the input pen which concerns on Embodiment 2 of this invention, (A) is a front view, (B) is a top view. FIG. 3B is a structural diagram illustrating a usage state of the input pen illustrated in FIG. 3A, in which FIG. 3A is a front view and FIG. It is a top view which shows the structural example of the front-end | tip board part of the input pen shown to FIG. 3A, (A) is a circle, (B) is a triangle, (C) is a square, (D) is a trapezoid. It is a top view which shows the Example of the recognition mark formed in the circular front-end | tip board part shown to FIG. 4 (A), (A) is a small circle, (B) is a large circle, (C) is a small ring shape, ( D) shows the case of a large ring shape. It is a top view which shows the Example of the recognition mark formed in the circular front-end | tip board part shown to FIG. 4 (A), (A) is a small triangle, (B) is a large triangle, (C) is a small triangular frame shape. , (D) is a case of a large triangular frame shape. It is a top view which shows the Example of the recognition mark formed in the circular front-end | tip board part shown to FIG. 4 (A), (A) is a small square, (B) is a large square, (C) is a small frame shape, (D) shows the case of a large frame shape. It is a top view which shows the Example of the recognition mark formed in the circular front-end | tip board part shown to FIG. 4 (A), (A) is a wedge shape, (B) is a trapezoid, (C) is a wedge shape with a stand, (D ) Is a case of a house-shaped pentagon. FIG. 5A is a conceptual diagram showing the relationship between the size of the circular recognition mark shown in FIGS. 5A and 5B and the size of the parallax control pitch of the parallax control unit, and FIG. (B) is a conceptual diagram showing the influence of the parallax control in a state where the diameter of the recognition mark is about the same as twice the parallax control pitch. (C) is a conceptual diagram showing the influence of parallax control in a state where the diameter of the recognition mark is about 3 times the parallax control pitch, and (D) is about 4 times the parallax control pitch. It is a conceptual diagram which shows the influence of the parallax control in the state which carried out. 7C is a conceptual diagram conceptually showing a state in which an optical signal by a circular recognition mark shown in FIGS. 6C and 6D is detected by an input image detection unit. FIG. It is a conceptual diagram which shows notionally the state by which the optical signal by the polygonal recognition mark shown to FIG. 5B (A) and FIG. 5D (B) is detected by the input image detection part. FIGS. 6C and 6D are conceptual diagrams conceptually showing a state in which the input image input by the circular recognition mark shown in FIGS. 6C and 6D is detected by the input image detection unit, and FIG. FIG. 5B is a conceptual plan view showing an input image extraction state obtained by image calculation processing based on a detection result in the input image detection unit. It is a front view which shows schematic structure of the input pen which concerns on Embodiment 3 of this invention. It is a front view which shows the use condition of the input pen shown to FIG. 10A. It is a top view which shows the external appearance of the liquid crystal display electronic device which concerns on Embodiment 4 of this invention, (A) shows the state operated by two operators, (B) is operated by one operator. Indicates the state to be performed. It is a block diagram which shows the outline of the functional structure block of the liquid crystal display electronic device which concerns on Embodiment 5 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid crystal display electronic device 1c Case 5 Control part 10 Liquid crystal display part 10d Image display surface 10f 1st display area 10s 2nd display area 10t 3rd display area 11, 11a-11k Display control liquid crystal layer 13 Liquid crystal drive part 14 Color filter DESCRIPTION OF SYMBOLS 15 Backlight 20 Parallax control part 20s Light-shielding area 20t Light transmission area 21, 21a-21m Parallax control liquid crystal layer 30 Image input part 31 Input permissible area 31f 1st visual recognition direction input permissible area 31m Input permissible area mark 31s 2nd visual recognition direction input Allowable area 35 Input pen 35f First input pen 35s Second input pen 36 Tip plate portion 36d Pen tip direction mark 36s Recognition mark 37 Universal connection portion 38 Body portion 39 Light emitting portion 39c Light emission control portion 39d Light emitting element 39s Light emission control switch 39p Optical path 40 Input image detection unit 40f First viewing method Input image detection unit 40s Second viewing direction input image detection unit 40v Effective area 41, 41a to 41k Photoelectric conversion element 50 Image display signal generation unit 60 Operation unit 60f First operation unit 60s Second operation unit DIM display image DIMf First viewing Direction display image DIMs Second viewing direction display image ED Viewing direction EDf First viewing direction EDs Second viewing direction L1, L2, L3 Interval LL Outside light LS Optical signal OP Operator OPf First viewing direction Operator OPs Second viewing direction Operator Pp Parallax control pitch Sdim Image display signal SLS Shadow signal WIM input image WIMf First viewing direction input image WIMs Second viewing direction input image

Claims (16)

A liquid crystal display unit, and the liquid crystal display unit arranged to overlap the liquid crystal display unit displays a first viewing direction display image in the first viewing direction, and a second viewing direction display image in the second viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display an image, an image input unit that is arranged to be superimposed on the parallax control unit, and that receives an input image, and that is input to the image input unit An input image detection unit that detects an input image corresponding to the first viewing direction or the second viewing direction, and the first viewing direction display image / second image according to the input image detected by the input image detection unit. An input pen applied to a liquid crystal display electronic device configured to display a viewing direction display image,
A plate-like tip plate portion facing the image input unit;
An input pen comprising: a rod-shaped body portion connected to the tip plate portion in a direction intersecting the tip plate portion. The input pen according to claim 1,
The input pen characterized by the said front-end | tip board part having the recognition mark detected by the said input image detection part in the surface facing the said image input part. The input pen according to claim 2,
The input pen, wherein the tip plate portion is made of a translucent material. The input pen according to claim 2,
The input pen, wherein the recognition mark and the tip plate portion in a region corresponding to the recognition mark are formed of a translucent material. The input pen according to claim 3,
The input pen, wherein the recognition mark is formed by a half mirror that reflects external light with respect to the recognition mark. An input pen according to any one of claims 2 to 5,
The input pen, wherein the recognition mark is a circular shape having a diameter three times or more than a parallax control pitch of the parallax control unit. An input pen according to any one of claims 2 to 5,
The input pen, wherein the recognition mark is formed of a regular polygon. The input pen according to claim 7,
The number of vertices of the regular polygon is three. An input pen according to any one of claims 1 to 8,
The input pen is characterized in that the tip plate portion is configured to be removable with respect to the body portion. An input pen according to any one of claims 1 to 9,
An input pen comprising: a light emitting unit built in the body unit; and a light guide for guiding an optical signal from the light emitting unit as an input image to the image input unit. The input pen according to claim 10,
The input pen according to claim 1, wherein a light emission color of the light emitting unit is any one of red, blue, green, and white. The input pen according to claim 10,
An input pen characterized in that the light emission color of the light emitting unit can be switched between two or more of red, blue, green, or white. The input pen according to claim 10,
An input pen characterized in that the emission color of the light emitting unit is switchable in white. An input pen according to any one of claims 1 to 13,
The input body characterized in that the body part is connected to the tip plate part via a free connecting part that is attached to the tip plate part and freely bends the body part. A liquid crystal display unit, and the liquid crystal display unit arranged to overlap the liquid crystal display unit displays a first viewing direction display image in the first viewing direction, and a second viewing direction display image in the second viewing direction. A parallax control unit that performs parallax control on the liquid crystal display unit so as to display an image, an image input unit that is arranged to be superimposed on the parallax control unit, and that receives an input image, and that is input to the image input unit An input image detection unit that detects an input image corresponding to the first viewing direction or the second viewing direction, and the first viewing direction display image / second image according to the input image detected by the input image detection unit. A liquid crystal display electronic device configured to display a viewing direction display image,
The liquid crystal display electronic device according to claim 1, wherein the input image is input to the image input unit by the input pen according to any one of claims 1 to 15. The liquid crystal display electronic device according to claim 15,
An image display signal generation unit that generates an image display signal corresponding to the input image by performing image calculation processing on the input image detected by the input image detection unit;
The liquid crystal display electronic device, wherein the liquid crystal display unit includes a liquid crystal driving unit that displays the first viewing direction display image / the second viewing direction display image according to the image display signal.

Images