WO2007083500A1

WO2007083500A1 - Antenna-equipped image display device

Info

Publication number: WO2007083500A1
Application number: PCT/JP2006/325942
Authority: WO
Inventors: Hitoshi Kakizawa
Original assignee: Nippon Sheet Glass Company, Limited
Priority date: 2006-01-23
Filing date: 2006-12-26
Publication date: 2007-07-26
Also published as: JPWO2007083500A1

Abstract

An antenna-equipped image display device includes: image display means having a display screen; a frame having a conductive surrounding frame surrounding the display screen and containing the image display means; and a communication antenna arranged on the display screen or on its translucent insulating cover member. The communication antenna is arranged on the display screen or the translucent cover member with an interval of 1 mm or above (preferably, 2 mm or above) from the conductive surrounding frame. Thus, it is possible to provide the antenna-equipped image display device having a communication antenna capable of maintaining preferable communication performance even if the conductive surrounding frame of the frame body of the image display means having a display screen is conductive.

Description

Specification

Image display device with antenna

Technical field

[0001] The present invention includes a liquid crystal image display panel main body having a display screen, an image display means such as a plasma image display panel main body, and a conductive peripheral frame surrounding the display screen! A frame housing the image display means; and a communication antenna provided on the display screen or a translucent and insulating cover member that covers the front surface of the display screen. The present invention relates to an image display device with an antenna.

Background art

[0002] Conventionally, a technology that incorporates a communication antenna in an image display device such as a liquid crystal image display device and communicates the communication antenna with an electronic tag has also attracted attention. According to this technology, the contents of the image display in the image display device can be changed according to the information recorded in the electronic tag, so that different information can be transmitted for each person. The electronic tag is also called a wireless tag or an IC tag, and has a built-in memory in which information is recorded, and has a communication circuit that includes an IC chip and a small antenna. As an image display apparatus with an antenna as described above, for example, Japanese Patent Application Laid-Open No. 2000-215278 discloses a display screen incorporating a loop antenna.

Patent Document 1: Japanese Patent Laid-Open No. 2000-215278

However, the image display apparatus with an antenna disclosed in Japanese Patent Application Laid-Open No. 2000-215278 has a problem as described in the following item (A). The reason why this problem occurs is as described in the paragraph (a) described next to the paragraph (A).

(A) There are many restrictions on the location of the communication antenna when the antenna is incorporated into the image display device. If the communication antenna is installed at a location other than the limited position, the communication performance of the communication antenna will deteriorate.

(a) The communication antenna can usually ensure communication performance by being placed in an electrically insulated space. However, for example, a display screen using a liquid crystal display panel In order to maintain strength and shield against noise radiation from the vicinity of the liquid crystal display screen, the side frame portion of the liquid crystal display panel and, if necessary, the back plate portion are made of a conductive metal frame (in other words, In this case, a metal casing) is used. The liquid crystal itself of the liquid crystal display panel is also conductive. Therefore, in the case of the communication antenna in the image display apparatus with an antenna disclosed in Japanese Patent Application Laid-Open No. 2000-215278, the communication performance is easily deteriorated due to the influence of the metal frame and the liquid crystal.

Patent Document 1: Japanese Patent Laid-Open No. 2000-215278

[0004] The present invention was invented by paying attention to the above-described problems, and is a frame of image display means having a display screen (in particular, surrounding the display screen! / The present invention provides an image display device including a communication antenna such as a loop antenna, a monopole antenna, and a dipole antenna that can maintain a preferable communication performance even if the surrounding frame portion is conductive. As a goal!

Disclosure of the invention

[0005] The present invention comprises a liquid crystal image display panel main body having a display screen, an image display means such as a plasma image display panel main body, and a conductive peripheral frame surrounding the display screen! A frame housing the image display means; and a communication antenna provided on the display screen or a translucent and insulating cover member that covers the front surface of the display screen. In the image display device with an antenna, the communication antenna force provided on the display screen or the translucent cover member at a distance of 1 mm or more (preferably 2 mm or more) from the conductive surrounding frame. It is. According to the present invention, the communication antenna provided on the display screen of the image display means or the cover member thereof can be less affected by the conductive surrounding frame portion of the frame, so that the communication performance of the communication antenna can be reduced. Can be maintained well.

[0006] According to the first aspect of the present invention, the communication antenna can be provided on the display screen. According to the second aspect of the present invention, the communication antenna force can be provided in the cover member surrounded by the conductive surrounding frame portion. The translucent and insulating cover member is also useful for protecting the front surface of the image display panel main body. [0007] Further, according to the first aspect of the second aspect of the present invention, the cover member has a structure in which the first translucent plate and the second translucent plate are overlapped. The communication antenna can be disposed between the first translucent plate and the second translucent plate. Further, in the first aspect, the communication antenna is configured by at least one power feeding portion force first conductive plate-like body, and the first or second conductive plate-like body has the first or second power supply. A second conductive plate that is capacitively coupled to the first conductive plate by facing substantially through the translucent plate is provided, and the power supply lead wire has the second conductive plate. It can be connected to a plastic plate. Then, in the first aspect, the communication antenna includes two power feeding sections each composed of the first conductive plate-like body, and the two second conductive plate-like bodies. And the two first conductive plate-like bodies substantially oppose each of the two second conductive plate-like bodies via the first or second light-transmitting plate. it can.

[0008] The third aspect of the second aspect further includes a connector to which the second conductive plate-like body is attached, and the power supply lead wire is attached to the connector. The power supply lead wire can be connected to the second conductive plate-like body. Then, in the third aspect, the second conductive plate-like body is configured such that the first conductive plate is interposed through an inner translucent plate of the first and second translucent plates. It can almost face the plate-like body. In the third aspect, the thickness of the inner translucent plate can be generally 2.2 mm or less (preferably 1.5 mm or less) from the viewpoint of practicality. . In this case, since the capacitance per unit area of the power feeding capacitor in which the inner translucent plate functions as a dielectric increases, the efficiency of power feeding through this capacitor can be improved. Further, in the third aspect, the thickness of the outer translucent plate is generally in the range of 2 to 6 times the thickness of the inner translucent plate (preferably, from the viewpoint of practicality) (preferably, 2. can range from 5 to 4 times).

[0009] Also, according to the fourth aspect of the second aspect of the present invention, the insulating casing of the connector is provided with the first thinly disposed portion which is substantially disposed on the rear surface side of the inner translucent plate. The first case partial force comprises a case portion and a second case portion having a large thickness projecting laterally from the rear surface of the inner translucent plate, and the step portion is the first case portion. And second The second conductive plate is attached to the first case portion, and the coaxial cable as the power supply lead is attached to the second case portion. Can be done. According to the fourth aspect, the thickness of the first case portion is generally in the range of 0.5 to 3 mm (preferably in the range of 1 to 2 mm) from the viewpoint of practicality. Can be. According to the fifth aspect of the second aspect, each of the first and second translucent plates can be a glass plate.

[0010] Further, according to the third aspect of the present invention, the image display means can be a liquid crystal display panel main body. According to the fourth aspect of the present invention, the communication antenna can also be configured to have a conductive thin wire force. According to the fourth aspect, since the conductive thin wire can be reduced in width, this display screen is used for the display antenna of the image display means or the communication antenna provided on the cover member. It is possible to prevent the visibility of the screen display from being substantially disturbed. In the fourth aspect, the wire diameter of the conductive thin wire can generally be in the range of 0.01 to 0.3 mm from the viewpoint of practicality. Furthermore, according to the fifth aspect of the present invention, the communication antenna is composed of a conductive pattern made of a transparent conductive paint formed on a resin film such as a transparent resin film, and the like. The antenna can be provided on the display screen or the light-transmitting cover member by attaching a grease film to the display screen or the cover member. According to the fifth aspect, since the resin film and the conductive pattern can be made almost transparent, the display screen is used for a communication antenna provided on the display screen of the image display device or its cover member. It is possible to prevent the visibility of the screen display from being substantially hindered. In addition, in the fifth aspect, the conductive pattern generally has a thickness in the range of 0.3 to LOmm and a thickness in the range of 0.001 to 0.2 mm from the viewpoint of practicality. Can be.

[0011] Further, according to the sixth aspect of the present invention, the conductive peripheral frame portion of the frame body is divided at at least one location and electrically insulated at the division location. Is possible. According to the sixth aspect, since the conductive peripheral frame functions as a loop coil, the communication antenna provided on the display screen of the image display means or its cover member Can be more reliably prevented from being interfered by the conductive surrounding frame. Also

In the sixth aspect described above, the separation interval of the divided portions is generally in the range of 0.2 to 5 mm (preferably in the range of 0.5 to 2 mm) in view of practical viewpoint. Is possible. When the dividing interval is smaller than the lower limit of the above range, there is a possibility that both side ends of the dividing portion come into contact with each other, and it is easy to cause a problem in insulation due to the dividing portion. When the value exceeds the upper limit of the range, there is a problem that the strength of the conductive surrounding frame portion is too low at the divided portion. And according to the 1st aspect of the 6th viewpoint, the said both ends can be couple | bonded by interposing a spacer between the both ends of the said division | segmentation location. Further, according to the second aspect of the sixth aspect, the holder configured in a substantially U shape is bonded to the vicinity of both side ends of the divided portion, and at least two slits are formed in the holder. And at least two tongue pieces are provided in the vicinity of the both side ends of the conductive peripheral frame portion, the at least two tongue pieces are inserted into the at least two slits, and the force is also bent. Is possible. Furthermore, according to the seventh aspect of the present invention, there is provided an image from the image display panel main body that constitutes the image display means and the frame that accommodates the image display panel main body. A display panel is configured, and an image display device body including the image display panel can be accommodated in the second frame.

According to the eighth aspect of the present invention, the communication antenna is a loop antenna, and the length of each side of the loop antenna can be in the range of 100 to 140 mm. In the eighth aspect, the first antenna element of the four antenna elements constituting the loop antenna is configured such that the display screen or the translucent cover member is disposed on the conductive surrounding frame portion. Extends about lmm or more (more preferably 2mm or more) away from the first side end substantially along the first side end (for example, the left end), and the second of the four antenna elements The antenna element is configured so that the display screen or the translucent cover member extends substantially along a second side end (for example, an upper end) adjacent to the first side end of the conductive peripheral frame portion. The second side end may extend at least 1 mm (preferably 2 mm or more). According to the eighth aspect, the display antenna of the image display means or the communication antenna provided on the cover member is effective with the electronic tag. You can communicate efficiently.

[0013] Further, according to the ninth aspect of the present invention, the communication antenna can be a monopole antenna or a dipole antenna. And according to the first aspect of the ninth aspect of the present invention, the communication antenna is a substantially inverted L-shaped or substantially L-shaped antenna having first and second antenna elements. The first antenna element is not less than lmm from the first side edge of the display screen or the translucent cover substantially along the first side edge of the conductive peripheral frame (preferably 2 mm or more), and the second antenna element is connected to the display screen or the translucent cover member on the second side adjacent to the first side end of the conductive peripheral frame portion. It can extend about 1 mm or more (preferably 2 mm or more) from this second side edge substantially along the edge. According to the first aspect, the visibility of the screen display on this display screen is effectively prevented due to the communication antenna provided on the display screen of the image display means or its cover member. can do. In the first aspect, the first and second antenna elements are separated by the distance forces at which the first and second side end forces are separated from each other, generally within 10 mm from the viewpoint of practicality. Can be

[0014] Furthermore, according to the second aspect of the ninth aspect of the present invention, the communication antenna is a dipole antenna having first and second antenna elements, respectively, and the first antenna The display screen or the translucent cover member is placed along a predetermined side end of the conductive surrounding frame portion so that the element and the second antenna element are substantially in a straight line as a whole. Each can extend 1 mm or more (preferably 2 mm or more) away from the side edge. Also according to this second aspect, the visibility of the screen display on this display screen is effectively prevented due to the communication antenna provided on the display screen of the image display means or its cover member. can do. Further, in this second aspect, the distance between the first and second antenna elements separated from each other by the predetermined side end force is generally within 10 mm from the viewpoint of practicality. be able to.

Brief Description of Drawings FIG. 1 is a perspective view of an image display apparatus with an antenna according to a first embodiment of the present invention.

FIG. 2 is a plan view of an electronic tag that can communicate with the image display device of FIG.

FIG. 3 is a graph showing the maximum response distance of the electronic tag in FIG. 2 when the length of one side of the loop antenna of the image display device in FIG. 1 is changed.

FIG. 4 is a perspective view of an image display apparatus with an antenna according to a second embodiment of the present invention.

[FIG. 5] FIG. 5 is a directivity graph showing the antenna sensitivity of the image display device of FIG. 4 in terms of dipole ratio Z horizontal polarization.

FIG. 6 is a perspective view of a part of the panel frame of the image display device with an antenna in the third embodiment of the present invention.

FIG. 7 is an exploded perspective view of the panel housing shown in FIG.

FIG. 8 is a perspective view of an image display apparatus with an antenna according to a fourth embodiment of the present invention.

FIG. 9 is a perspective view of an image display device with an antenna according to a fifth embodiment of the present invention with a cover glass taken out forward.

FIG. 10 is a front view of the cover glass shown in FIG.

FIG. 11 is a cross-sectional view taken along the line AA in FIG.

FIG. 12 is an enlarged rear view of the connector shown in FIG.

FIG. 13 is a left side view of the connector shown in FIG.

FIG. 14 is a front view of a cover glass in a sixth embodiment of the present invention.

FIG. 15 is a cross-sectional view taken along the line BB in FIG.

FIG. 16 is an enlarged rear view of the connector shown in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, first to sixth embodiments of the present invention are referred to as “1, first embodiment”, “2, second embodiment”,

`` 3, 3rd embodiment '', `` 4, 4th embodiment '', `` 5, 5th embodiment '' and `` 6, 6th embodiment '' To do.

[0017] 1, first embodiment First, the first embodiment of the present invention is described as “(1) Configuration of an image display device with an antenna”, Γ (2) Configuration of an electronic tag, and “(3) Measurement experiment of the maximum response distance of an electronic tag”. This will be described in detail with reference to FIGS.

[0018] (1) Configuration of image display device with antenna

As shown in FIG. 1, the image display device 1 with an antenna in the first embodiment of the present invention includes a liquid crystal image display device 3 having a liquid crystal image display panel body 2. On the liquid crystal display screen 4 of the liquid crystal image display panel main body 2 such as a substantially rectangular shape (in other words, the front surface plate of the liquid crystal image display panel main body 2), for example, a one-turn loop antenna 5 is provided. Is provided. Since the front surface plate may function substantially as the liquid crystal display screen 4, a translucent insulating material such as glass and synthetic resin can also be configured. Alternatively, it may function as a front polarizing filter.

As shown in FIG. 1, the liquid crystal image display device 3 has a known structure. As shown in FIG. 1, a conductive frame body made of metal such as stainless steel (in other words, a liquid crystal image table) The display device main body 9 is provided with a conductive casing 6). The conductive frame 6 has a box lid shape, and a side frame portion 6a made of a hollow frame member having a substantially rectangular parallelepiped shape with open front and rear ends, and a rear side of the side frame portion 6a. The back plate part (not shown) that closes the opening is also used. The conductive side frame 6a made of metal or the like surrounds the periphery of the liquid crystal display screen 4 of the liquid crystal image display panel main body 2 to constitute the conductive peripheral frame. In addition, the conductive side frame portion 6a divides this side frame portion 6a at at least one place. In other words, the notch (in other words, the slit) 7 is formed at an appropriate location (in the illustrated embodiment, the side frame portion 6a. It is provided in the middle of the left part of a). The notch 7 is loaded with a synthetic resin such as polyethylene resin and a spacer 8 having other insulating material strength. The spacer 8 is bonded to the side frame portion 6 by an adhesive or the like. It is fixed to. Accordingly, the side frame portion 6a is separated from each other at the upper end 6b and the lower end 6c adjacent to the spacer 8. It should be noted that the distance between the two side ends 6b and 6c (that is, the separation distance) S (in other words, the thickness of the cut 7) may be, for example, lmm. In addition, the back plate portion does not necessarily need to be conductive, but even in the case of conductivity, the back plate portion is electrically insulated from the side frame portion 6a. In this state, it can be coupled to the side frame portion 6a.

The conductive frame 6 shown in FIG. 1 also serves as a frame that accommodates the liquid crystal image display panel main body 2 as image display means. Therefore, the liquid crystal image display panel main body 2, the knock light (not shown), and the circuit board (not shown) may be sequentially accommodated in the frame 6 with the front force and the rear. In addition, the liquid crystal image display panel body 2 includes a front polarizing filter, a front glass substrate with a transparent electrode, a liquid crystal layer, a rear glass substrate with a transparent electrode, and a rear polarizing filter (all not shown). ) To the front part of the frame body 6 in the order of a forward force and a rearward direction. Therefore, in this case, as described above, when the antenna 5 is provided on the liquid crystal display screen 4 (in other words, on the front surface of the liquid crystal image display panel body 2), the antenna 5 is connected to the front surface of the front polarizing filter. Can be placed on top.

The loop antenna 5 shown in FIG. 1 is attached on the liquid crystal display screen 4 by sticking a transparent synthetic resin film on the liquid crystal display screen 4. Specifically, a conductive thin wire such as copper wire with a wire diameter of 0.05 mm (in other words, a thin wire conductor) is almost square on a synthetic resin such as polyester resin or other insulating material. A film with a loop antenna was formed by pasting in a shape. Then, the liquid crystal display screen of the liquid crystal image display panel main body 2 with the metal frame 6 of the liquid crystal image display device 3 (specifically, the exposed portion where the front surface of the liquid crystal image display panel main body 2 is exposed from the frame 6). ) The film with the loop antenna 5 was pasted partially or almost entirely on 4 with a transparent adhesive or the like so that the loop antenna 5 side was inside. In this case, the exposed portion 4 has, for example, a lateral length L force S232 mm and a longitudinal length L of 307 mm. Also

1 2

The length of one side of the substantially square loop antenna 5 was 120 mm, for example. The distance D at which the left antenna element 5b extending substantially parallel to the left end 11 of the exposed portion 4 is separated from the left end 11 (in other words, the frame 6) is, for example, lmm. Met. Furthermore, the distance D at which the lower antenna element 5c extending substantially parallel to the lower end 12 of the exposed portion is separated from the lower end 12 (in other words, the frame 6) is also an example.

2 is 7 lmm.

Therefore, the upper antenna element 5a and the lower antenna of the loop antenna 5 shown in FIG. The length L of each of the antenna elements 5c was 120 mm, for example. And Lou

Three

The length L of each of the left antenna element 5b and the right antenna element 5d of the antenna 5 was also 120 mm, for example. However, for example, the left antenna element 5b

Four

There was a break 14. The loop antenna 5 was electrically connected to the pair of connection terminals of the impedance matching device 13 at both ends of the cut 14.

[0023] (2) Structure of electronic tag

An example of an electronic tag 21 that can communicate with the image display device 1 with an antenna shown in FIG. 1 is shown in FIG. As shown in Fig. 2, the RFID tag 21 has a single-turn or multiple-turn small loop antenna (that is, a loop antenna) in which the center and the center of the RFID tag 21 substantially coincide with each other. And a communication circuit 20 including a memory in which information is recorded and an IC chip 24 disposed in the central opening 23 of the small antenna 22. An electronic tag 21 is configured by sandwiching the communication circuit 20 with an appropriate covering material 25 having a force such as a pair of upper and lower synthetic resin films and a pair of upper and lower paper sheets. The electronic tag 21 has, for example, a lateral length L force ¾5

The length L in the vertical direction was 53 mm at 5 mm.

6

[0024] (3) Measurement experiment of maximum response distance of RFID tag

FIG. 3 is a graph showing the maximum possible response distance of the electronic tag 21 of FIG. 2 with respect to the image display device 1 with an antenna of FIG. The frequency used in this maximum response distance measurement experiment was 13.56 MHz. In this measurement experiment, the lengths L and L of the sides 5a to 5d of the loop antenna 5 of the image display device 1 with an antenna are set to 50 to 180, respectively.

3 4

It was changed in the range of mm. In FIG. 3, the horizontal axis indicates the lengths (mm) L and L of the sides 5a to 5d of the substantially square loop antenna 5, and the vertical axis indicates the electronic tag 21.

3 4

Show the maximum response distance (mm).

[0025] From Fig. 3, good results are obtained when the length L of each side 5a to 5d of the loop antenna 5 of the antenna-equipped image display device 1 and the range of the L force Sl00 to 140mm are obtained. Being

3 4

I understand that And the length L and L force of 100mm from each side 5a to 5d

3 4

However, since the ratio of impedance conversion increases, the conversion efficiency decreases. Ma When the length L and L force of each side 5a to 5d are longer than 140mm,

3 4

Near the central portion of the antenna 5, there is a region where the magnetic field is not sufficiently large. The preferred size of the loop antenna 5 of the antenna-equipped image display device 1 (ie, L X L)

3 4 is the area in the force loop that depends somewhat on the size of the electronic tag 21 (in other words, the size of the small antenna 22) (ie, (L -0. Lmm) X (L—0.1 mm) ) Is shown in Figure 2.

3 4

2 to 6 times larger than the area of the commonly used electronic tag 21 (ie L X L)

5 6

The threshold is preferred.

[0026] 2, second embodiment

Next, the second embodiment of the present invention is divided into “(1) Configuration of image display device with antenna” and “(2) Sensitivity (directivity) measurement experiment of inverted L-shaped antenna”. This will be described with reference to FIG. 4 and FIG. In addition, as shown in FIG. 4, the image display device 1 with an antenna in the second embodiment of the present invention is not a loop antenna 5 but a monopole antenna (specifically, an inverted L-shaped antenna). Except for this, it may be substantially the same as the case of the first embodiment shown in FIG. Therefore, in FIG. 4 and FIG. 5, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted as necessary.

[0027] (1) Configuration of image display device with antenna

As shown in FIG. 4, the inverted L-shaped antenna 31 extends substantially vertically on the liquid crystal display screen 4, and extends substantially horizontally on the liquid crystal display screen 4 and the first antenna element 31a. Thus, a second antenna element 31b is provided. Specifically, the first antenna element 31a is substantially the same as the left end 11 of the liquid crystal display screen (specifically, the exposed portion where the front surface of the liquid crystal image display panel body 2 is exposed to the frame 6). It extends in parallel and its length L is, for example, 150 mm. The second antenna element 31b extends substantially parallel to the upper end 32 of the exposed portion, and its length L is, for example, 60 mm. And the first antenna

8

The distance D from which the element 31a is separated from the left end 11 (in other words, the frame 6) and the second key

Three

The distance D at which the antenna element 3 lb is away from the upper end 32 (in other words, the frame 6) is

4 Each is, for example, lmm.

[0028] Further, as shown in FIG. 4, the first antenna element 31a and the second antenna element 31b are electrically connected to each other, and are configured in a substantially inverted L shape. Therefore, As in the case of the first embodiment described above, the first antenna element 31a and the second antenna element 31b are connected to one conductive thin wire (specifically, a copper wire having a wire diameter of 0.05 mm, for example). Line) Force can be configured. Further, the inverted L-shaped antenna 31 includes a power feeding unit 33. In the illustrated embodiment, the power feeding portion 33 is provided near the lower end so as to be electrically connected to the lower end of the first antenna element 3 la, for example. Further, the inverted L-shaped antenna 31 as a monopole antenna is grounded to the conductive frame 6 via an appropriate ground wire (not shown).

[0029] (2) Measurement experiment of sensitivity (directivity) of inverted L antenna

FIG. 5 is a directivity graph showing the sensitivity in the UHF band (476 MHz) of the inverted L-shaped antenna 31 of the image display device 1 with an antenna as a dipole ratio Z horizontal polarization. In FIG. 5, the image display device 1 with an antenna is indicated by a chain line, and the reference numeral of the liquid crystal display screen 4 of the liquid crystal display panel body 2 is also added.

From FIG. 5, it can be seen that the inverted L-shaped antenna 31 has directivity over a wide range and in front of the liquid crystal display screen 4 (upward in FIG. 5).

[0031] 3, the third embodiment

Next, a third embodiment of the present invention will be described with reference to FIG. 6 and FIG. Note that the image display device with an antenna 1 in the third embodiment of the present invention has a liquid crystal image display panel body 2 that is electrically conductive separately from the frame body 6 (in other words, in addition to the frame body 6). Since the panel frame body (that is, the dedicated frame body for the liquid crystal image display panel main body 2) 41 is provided, the liquid crystal image display panel 42 is composed of the liquid crystal image display panel main body 2 and the panel frame body 41. Thus, it may be substantially the same as that of the first embodiment shown in FIG. 1 except that it is housed in the frame 6 as will be described later. Therefore, in the description of FIG. 6 and FIG. 7, the same reference numerals are used for portions common to FIG. 1, and description thereof is omitted as necessary.

In FIG. 6 and FIG. 7, the panel frame 41 is also configured as a substantially rectangular parallelepiped hollow frame member that is open at both front and rear ends. Specifically, the panel frame 41 is made of a metal such as stainless steel and has a substantially U-shaped cross section. The panel frame body 41 has a concave groove 43 formed in a substantially rectangular parallelepiped shape along the inner peripheral surface of the panel frame body 41. [0033] As shown in Fig. 7, the conductive panel frame 41 has a notch (in other words, a divided portion or a slit) 44 dividing the panel frame 41 at an appropriate location (Fig. 7). In the illustrated embodiment, it is provided at the substantially central portion of the left frame portion. The panel frame 41 is separated from each other at an upper end 41a and a lower end 41b adjacent to the notch 44. Note that the distance between the pair of both side ends 41a and 41b (that is, the separation interval) S

2

(In other words, the thickness of the cut 44) may be, for example, lmm.

[0034] As shown in FIG. 6, both end portions 41a and 41b of the conductive panel frame 41 are shaft couplings (in other words, holding fixtures) made of synthetic resin such as polyethylene resin or other insulating material. By being connected by 45, the positions are held mutually. The holder 45 is substantially U-shaped and includes a pair of upper and lower slits 46 and 47. Further, a pair of upper and lower tongue pieces 48 and 49 corresponding to the pair of upper and lower slits 46 and 47 are provided on both side edges 41a and 41b of the panel frame 41, respectively. The tongue pieces 48 and 49 may be formed by bending the protrusions integrally formed on the both side ends 41a and 41b of the panel frame body 41 to the right direction by applying outward force. . When attaching the holder 45 to the panel frame 41, apply an appropriate adhesive to the inner peripheral surface of the substantially U-shaped holder 45, and then attach the holder 45 to both ends of the panel frame 41. Can be glued around 41a and 41b. In this case, the pair of upper and lower tongue pieces 48, 49 having a substantially flat plate shape are inserted into the pair of upper and lower slits 46, 47 as shown in FIG. The cross-section can be configured in an approximately L shape. Therefore, the holder 45 can be firmly coupled to the panel frame 41.

The liquid crystal image display panel main body 2 can be incorporated into the panel frame 41 before or after the holder 45 is attached to the panel frame 41. Specifically, the panel frame 41 includes a front polarizing filter, a front glass substrate with a transparent electrode, a liquid crystal layer, a rear glass substrate with a transparent electrode, and a rear polarizing filter (none shown). ) Are arranged sequentially from front to back. In this case, each of these filters, glass substrates, and liquid crystal layer laminates may be fixed to the panel frame 41 by being fitted into the concave grooves 43 as a whole.

[0036] In the image display apparatus 1 with an antenna in the above-described third embodiment shown in Figs. In this case, the liquid crystal display panel 42 is accommodated in the frame 6 shown in FIG. 1, as in the case of the liquid crystal display panel body 2 shown in FIG. The frame 6 does not necessarily need to be electrically conductive, and may be made of an insulating material such as wood or synthetic resin. In this case, the notch 7 and the spacer 8 do not need to be provided in the frame body 6 in particular. In addition, when the frame 6 is conductive as in the case shown in FIG. 1, the conductive frame 6 is not directly but indirectly connected to the liquid crystal display panel body 2 as the image display means. Contained. Therefore, in this case, the panel frame 41 may be made of an insulating material such as wood or synthetic resin, which is not necessarily conductive. In this case, the notch 44 (and thus the holder 45) need not be provided. In the above image display device 1 with an antenna, the notch 44 of the conductive panel frame 41 is also provided with a spacer (corresponding to the spacer 8) having an insulating material force as in the case of the notch 7 in FIG. ).

[0037] 4, the fourth embodiment

Next, a fourth embodiment of the present invention will be described with reference to FIG. Note that the image display device with an antenna 1 in the fourth embodiment of the present invention is substantially the same as the holder 45 shown in FIGS. 6 and 7 in order to connect the both side ends 6b and 6c of the conductive frame 6. 4 may be substantially the same as that of the second embodiment shown in FIG. 4 except that a holder having the same configuration is used. Therefore, in FIG. 8, the same reference numerals are used for portions common to FIGS. 4, 6, and 7, and description thereof is omitted as necessary.

In FIG. 8, both ends of the conductive frame 6 (corresponding to both ends 6b and 6c in FIG. 4) are connected by the holding tool 45 in the same manner as shown in FIGS. Yes. Therefore, the holder 45 is provided with a pair of upper and lower slits 46 and 47 as in the case shown in FIG. Further, similarly to the case shown in FIG. 7, a pair of upper and lower tongue pieces 48, 49 corresponding to the pair of upper and lower slits 46, 47 are provided on both side ends of the conductive frame 6. Then, the pair of upper and lower tongue pieces 48, 49 are inserted into the pair of upper and lower slits 46, 47, respectively, and then bent, as in the case shown in FIGS.

In the image display device 1 with an antenna shown in FIG. 8, the notch formed between the both side ends of the conductive frame 6 is insulated as in the case of the notch 7 shown in FIG. Spacers made of material (corresponding to spacer 8) can be inserted. Antenna 31 The performance of the second embodiment shown in FIG. 4 was substantially the same as that of the fourth embodiment shown in FIG.

[0040] 5, fifth embodiment

Next, a fifth embodiment of the present invention will be described with reference to FIGS. The image display device 1 with an antenna in the fifth embodiment of the present invention is

(a) The liquid crystal image display panel 42 further includes a cover glass (in other words, a light-transmitting and insulating cover member made of glass) 52 on the front surface of the liquid crystal image display panel body 2;

(b) The communication antenna 51 is not provided on the front surface of the front polarizing filter of the liquid crystal image display panel body 2, but is incorporated in the cover glass 52.

(c) The communication antenna is not a monopole antenna 31 but a dipole antenna 51,

4 may be substantially the same as in the second embodiment shown in FIG. Therefore, in the description of FIGS. 9 to 13, the same reference numerals are used for the same parts as in FIG. 4, and description thereof is omitted as necessary.

In FIG. 9 and FIG. 10, the cover glass 52 as the translucent cover member is composed of a pair of glass plates (specifically, an outer or front glass plate 53 and an inner or rear glass plate 54). It may have a laminated glass structure laminated through an intermediate film 55. In this case, the pair of glass plates 53 and 54 may be made of any one kind of force selected from soda lime glass and Pyrex (registered trademark) glass. In addition, the intermediate film 55 may have any one of PVB (polybulutyl) and polyurethane resin, and particularly preferably has a PVB force. The translucent cover member 52 only needs to have both translucency and insulating properties, and the outer translucent plate 53 and the inner translucent plate 54 do not necessarily need to be glass plates. A synthetic resin plate may be used. Therefore, the cover member 52 may have a structure in which a plurality of light-transmitting and insulating plates such as a transparent glass plate are combined. Further, the cover glass 52 may be incorporated into the conductive frame 6 with the conductive frame 6 having a slightly larger depth, and the conductive frame 6 may be mounted with an appropriate attachment or suitable adhesive. It may be attached to the front of the body 6. Therefore, the cover glass (in other words, the light-transmitting and insulating cover member) 52 is used for the liquid crystal image display panel main body. 2 (in other words, the liquid crystal image display device main body 9) functions as a front surface plate, which is useful for protecting the front surface of the liquid crystal image display panel main body 2.

[0042] A laminated surface (in other words, an intermediate glass plate 54 in one of the pair of glass plates 53 and 54 constituting the laminated glass 52) (in other words, an intermediate glass plate 54). As shown in FIGS. 9 to 11, a dipole antenna 51 as a communication antenna is provided in advance on the membrane 55 side surface. The dipole antenna 51 includes a first antenna element 51a that extends substantially vertically in the cover glass 52 that substantially functions as the liquid crystal display screen 4, for example, substantially along the left end 11, and the cover glass 52. For example, a second antenna element 51b extending substantially laterally along the lower end 12 is provided. The lengths of the first and second antenna elements 51a and 51b are selected to be appropriate values in accordance with the second and first antenna elements 31b and 31a in the second embodiment described above. be able to. The first and second antenna elements 51a and 51b are provided with power supply units 33a and 33b, respectively. In the illustrated embodiment, the power feeding section 33a is provided near the lower end so as to be electrically connected to the lower end of the first antenna element 51a, for example. In addition, the power feeding portion 33b is provided near the left end portion so as to be electrically connected to the left end portion of the second antenna element 5 lb, for example. Therefore, the pair of power feeding portions 33a and 33b are provided on the mating surface of the inner glass plate 54 so as to be adjacent to each other in the substantially vertical direction. The distance D from which the first antenna element 51a is separated from the left end 11 (in other words, the conductive frame 6) and the second antenna element 51a

3 The distance D at which the antenna element 3 lb is away from the lower end 12 (in other words, the conductive frame 6) is, for example, lmm.

Four

[0043] One side of the pair of glass plates 53 and 54 constituting the laminated glass 52 (in the illustrated embodiment, the inner glass plate 54) is the surface opposite to the mating surface (hereinafter referred to as the glass plate 52). The connector 62 is attached to the “non-mating surface”) by bonding with an adhesive as shown in FIG. As shown in FIGS. 12 and 13, the connector 62 is an insulating member to which a pair of conductive plates 63 and 64 constituting one of the pair of electrodes of the capacitor are respectively attached. A sex case 61 is provided. Note that the pair of conductive plates 63 and 64 is made of copper, nickel, etc. on the insulating case 61 or the inner glass plate 54. Each of the metal materials can be configured by a plate-like bonding force or printing and firing. The pair of conductive plates 63 and 64 are preferably configured to be in close contact with the non-matching surfaces of the inner glass plate 54, respectively.

[0044] The pair of conductive plates 63 and 64 shown in FIGS. 11 to 13 also function as connection terminals because the coaxial cables 65 as lead wires are connected to each other. In the illustrated example, the inner conductor (in other words, the central conductor) 66 of the coaxial cable 65 is connected to one conductive plate 63, and the outer conductor is connected to the other conductive plate 64. 67 is connected. In FIGS. 12 and 13, reference numeral 68 denotes an inner insulating coating layer, and reference numeral 69 denotes an outer insulating coating layer. Accordingly, the conductive frame 6 is provided with a through hole (not shown) 1S for allowing the coaxial cable 65 to pass therethrough as necessary. The insulating case 61 may be a hollow case made of an arbitrary synthetic resin with a pair of conductive plate bodies 63 and 64 and a coaxial cable 65 attached thereto, or a pair of conductive plate shapes. The body 63, 64 and the coaxial cable 65 are inserted, and any synthetic resin force may be molded into a solid state. Furthermore, a hollow case portion and a solid molded portion May be a mixture of things.

[0045] The pair of power feeding portions 33a and 33b shown in FIGS. 9 to 11 are arranged so as to substantially face the pair of conductive plate bodies 63 and 64 with the inner glass plate 54 interposed therebetween. Therefore, the pair of conductive plate bodies 63 and 64 are adjacent to each other in the vertical direction. The pair of power feeding portions 33a and 33b constitute the other electrode of the pair of electrodes of the capacitor. Therefore, the pair of power feeding portions 33a and 33b is also configured by the force of attaching a metal material such as copper or nickel in the form of a plate on the mating surface of the inner glass plate 54, or by printing and firing, respectively. It may be a pair of conductive plates. The conductive plate members 33a, 33b, 63, and 64 may be, for example, a 5 mm square or a substantially square smaller than a 5 mm square, or any other shape. Specifically, the first capacitor 71 is configured by the conductive plate 33 a, the inner glass plate 54, and the conductive plate 63. In addition, the second capacitor 72 is configured by the conductive plate 33 b, the glass plate 54 and the conductive plate 64. Therefore, conductive plate 63 and conductive The plate-like body 33a is capacitively coupled to each other, and the conductive plate-like body 64 and the conductive plate-like body 33b are capacitively coupled to each other. For this reason, direct current does not conduct in these capacitive couplings, but alternating current (especially high frequency) conducts well in these capacitive couplings. Therefore, capacitive power can be supplied from the conductive plate-like bodies 63 and 64 to the conductive plate-like bodies 33a and 33b (and thus the first and second antenna elements 5la and 51b).

[0046] The inner glass plate 54 functions as an insulator (that is, a dielectric) between the pair of electrodes 33a, 63 and 33b, 64 of the first and second capacitors 71, 72, as shown in FIG. To do. Therefore, in order to increase the electrostatic capacitance per unit area of the first and second capacitors 71 and 72 and efficiently perform power feeding, the thickness of the inner glass plate 54 is larger than the thickness of the outer glass plate 53. It is preferable that it is sufficiently small. 2. 2 mm or less is preferable. 1. It is more preferable that it is 5 mm or less. In general, the thickness of the inner glass plate 54 is preferably 0.3 mm or more, more preferably 0.5 mm or more, from the viewpoint of practicality. In general, the capacitances of the first and second capacitors 71 and 72 are preferably in the range of 2 to 20 pF from the viewpoint of practicality.

[0047] According to the image display device 1 with an antenna in the fifth embodiment of the present invention configured as described above, the cover glass 52 is provided, and the dipole antenna 51 is incorporated in the cover glass 52. Yes. A connector 62 used to connect the coaxial cable 65 to the dipole antenna 51 can be disposed on the rear side of the cover glass 52. It is also possible to reduce the diameter of thin wire conductors (ie, conductive wires) to 0.1 mm or less. Therefore, even if the communication antenna 51 is provided, the appearance of the image display device 1 with an antenna (particularly the liquid crystal display screen 4 of the liquid crystal image display panel body 2) can be prevented from being particularly impaired. The communication antenna 51 can be configured by enclosing the two thin wire conductors constituting the first and second antenna elements 51a and 51b between the pair of glass plates 53 and 54. .

[0048] As described above, when a thin wire conductor is enclosed as the antenna element 51a, 5 lb between the outer and inner glass plates 53, 54, these thin wire conductors 5 la, 5 lb are placed on the feeding circuit side. Must be electrically connected. In such a case, generally, the vicinity of the end of one glass plate (for example, the inner glass plate 54) of the laminated glass 52 is cut out and soldered (in other words, If this is the case, the force that at least partially exposes the power feeding sections 33a and 33b) as the connecting leads is between the pair of glass plates 53 and 54 of the laminated glass 52. It is necessary to project each part in a tongue shape as a connecting lead. Then, it is necessary to connect a lead wire 65 such as a coaxial cable to the exposed portion or the tongue-like portion by soldering or the like. Therefore, in such a case, the appearance near the cover glass 52 is deteriorated, and workability for connecting the communication antenna 51 to the power feeding circuit side is deteriorated. However, in the fifth embodiment of the present invention, as shown in FIG. 11, the feeding method to the wire conductors 5 la and 5 lb from the feeding circuit is capacitive feeding. Therefore, since it is possible to supply power without directly connecting the wire conductors 51a and 51b to the coaxial cable 65 by soldering or the like, the appearance of the image display device 1 with an antenna can be further improved. . At this time, the thickness of the glass plate on the power feeding side of the laminated glass constituting the cover glass 52 (in the illustrated embodiment, the inner glass plate 54) is preferably thin as described above.

On the other hand, the outer glass plate 53 shown in FIG. 11 can be arbitrarily thicker than the inner glass plate 54. Therefore, the communication antenna 51 can be fed with good power without particularly impairing the appearance near the cover glass 52. In general, the thickness of the outer glass plate 53 is preferably in the range of 2 to 6 times the thickness of the inner glass plate 53 from the viewpoint of practicality. 2. In the range of 5 to 4 times More preferably.

As described above, according to the fifth embodiment of the present invention, even if the communication antenna 51 is provided, a glass cover member (in other words, a translucent and insulating cover member) 52 is provided. Thus, it is possible to minimize the influence that impairs the design and workability of the terminal portions 33a, 33b, 63, and 64. 6.Sixth embodiment

Next, a sixth embodiment of the present invention will be described with reference to FIGS. The image display device 1 with an antenna in the sixth embodiment of the present invention is

(a) The first and second antenna elements 51a, 5 lb constituting the dipole antenna 51, and the power feeding sections (in other words, the respective first and second antenna elements 51a, 5 lb) , The conductive plate-like body) 33a, 33b, the arrangement position in the cover glass 52 has been changed, (b) The shape and structure of the connector 62 has been changed,

9 may be the same as the case of the fifth embodiment shown in FIGS. Therefore, in the description of FIGS. 14 to 16, the same reference numerals are used for portions common to FIGS. 9 to 13, and description thereof is omitted as necessary.

In FIG. 14 and FIG. 15, the first antenna element 51a of the dipole antenna 51 passes through the cover glass 52 that substantially functions as the liquid crystal display screen 4, for example, on the side frame portion 6a of the conductive frame 6. It extends almost vertically along the right edge 81 (see FIG. 9). The second antenna element 51b extends in the cover glass 52 substantially in the lateral direction substantially along the lower end 12 (see FIG. 9) of the side plate portion 62, for example. Also, a power feeding part (in other words, a conductive plate) 33a provided near the lower end 12 of the first antenna element 5 la and a right end part of the second antenna element 5 lb are provided. The feeding portion (in other words, the conductive plate-like body) 33b is provided on the mating surface of the inner glass plate 54 so as to be adjacent to each other substantially in the lateral direction. Then, the distance D from which the first antenna element 3 la is separated from the right end 81 (in other words, the conductive frame 6) and the second key

3 The distance D at which the antenna element 31b is separated from the lower end 12 (in other words, the conductive frame 6) is, for example, lmm.

Four

[0052] The insulating case 61 includes a first case portion 61a having a small thickness to which a pair of conductive plates 63 and 64 are attached adjacent to each other in the lateral direction, and a coaxial cable 65 attached thereto. It is formed by integrally molding or integrally joining the second thick case part 6 lb. In the sixth embodiment, the conductive plate 63 is connected to the outer conductor 67 of the coaxial cable 65, and the conductive plate 64 is connected to the inner conductor 66 of the coaxial cable 65. The first case portion 61a may have a hollow structure or may be molded with a pair of conductive plate-like bodies 63 and 64 inserted. Furthermore, the second case portion 61b may be a hollow structure integrally formed with the first case portion 61a having a hollow structure, but the first case portion 6la molded in a hollow shape A hollow structure that is integrally molded or integrally joined is preferred.

[0053] As shown in Figs. 15 and 16, the first case portion 61a includes an inner glass plate 54 and a liquid crystal. It is interposed between the front polarizing filter of the image display panel body 2. On the other hand, the second case portion 61b has a lower end surface 83 so that the upper end surface (that is, a stepped portion described later) 82 is substantially in contact with the lower end surface 83 of the laminated glass 52. Be placed. Therefore, the thickness of the first case portion 61a (that is, the length in the front-rear direction) is preferably small, and the thickness is preferably in the range of 0.5 to 3 mm. More preferably, it is in the range of ˜2 mm. The second case portion 61b need not have a small thickness (that is, a length in the front-rear direction), but it is considered that the diameter of the coaxial cable 65 is usually in the range of 3 to 4 mm. The thickness is preferably in the range of 4 to 8 mm, more preferably in the range of 5 to 6 mm. Therefore, it is preferable that the insulating case 61 shown in FIG. 16 has a stepped portion 82 for absorbing a change in thickness between the first case portion 61a and the second case portion 61b. In the illustrated embodiment, the stepped portion 82 is formed on the front side of the insulating case 61. In addition, the ratio of the thickness of the second case portion 61b opposite to the thickness of the first case portion 61a is preferably in the range of 2.5 to 5, and more preferably in the range of 3 to 4.5. Further preferred.

[0054] The first to sixth embodiments of the present invention have been described in detail above.

However, the present invention is not limited to the first to sixth embodiments, and various changes and modifications can be made based on the gist of the invention described in the claims.

[0055] For example, in the first to sixth embodiments described above, the antennas 5, 31, 51 of the image display device 1 with an antenna are composed of conductive thin wires (in other words, thin wire conductors). However, the antennas 5, 31, 51 are formed by printing and baking a conductive paint such as a transparent conductive paint on an insulating sheet made of synthetic resin or the like. For example, the antenna has a width of about 0.05 mm. The thickness of the conductive pattern force is composed!

[0056] In the first to sixth embodiments described above, the distances D, D, D, and D are all selected to be lmm in order to perform the measurement experiments shown in FIG. 3 and FIG. . Force and these

1 2 3 4

The distance is not necessarily lmm but may be larger than lmm, for example, 3 mm.

[0057] In the first, second, and fourth to sixth embodiments described above, the frame body 6 is formed in a box lid shape from the side frame portion 6a and the back plate portion. However, the frame body 6 is connected to the front end of the side frame portion 6a and You may have the front frame part which comprises the said electroconductive surrounding frame part. Such a front frame portion may be formed integrally with the front end of the side plate portion 6a, and is formed in a substantially closed loop shape (in other words, the entire periphery of the front end) along the front end. Or may be partially formed around the entire front end. In this case, a second notch similar to the notch 7 is also formed in the front frame portion so that the side frame portion 6a with the front frame portion is not electrically connected to the complete closed loop via the front frame portion. Is preferably provided as necessary. Such a second notch is preferably provided so as to continue to the notch 7, and the spacer 8 is also preferably inserted into the second notch. When such a front frame portion is provided, the size (LXL) of the liquid crystal display screen (specifically, the exposed portion) 4 of the image display device 1 with an antenna is 2 Than the original size of the LCD screen

1 2

Is also reduced by the size of the front frame.

In the second and fourth embodiments described above, the antenna 31 of the image display device 1 with an antenna is configured by an inverted L-shaped monopole antenna. However, this antenna may be a monopole antenna such as a substantially L-shape other than the inverted L-shape, and may be a substantially L-shaped, substantially inverted-L-shaped, etc. Dipole antenna 51 may be used. When the antenna 31 is composed of a dipole antenna, the first antenna element and the second antenna element of the dipole antenna are arranged on a predetermined side of the liquid crystal display screen 4 so that the two are almost in a straight line as a whole. It may extend along the edge (eg, left edge 11). Then, a feeding point may be provided at each of adjacent ends of the first antenna element and the second antenna element. Further, the distance D where the first antenna element and the second antenna element are separated from the predetermined side edge of the liquid crystal display screen 4 is 1 mm or more (preferably 2 mm

Three

In the above, preferably, it should be within 10 mm.

[0059] Furthermore, in the fifth and sixth embodiments described above, two capacitive power supply capacitors (two) are provided depending on the number of power supply units 33a and 33b for communication antenna 51 (ie, two). That is, first and second capacitors 71 and 72) were provided. However, as in the case of the second embodiment shown in FIG. 4 and the like, when only one power feeding section 33 is required, it is possible to provide only one capacitor power supply capacitor. 3 or more capacity power supply depending on A capacitor such as can also be provided.

Claims

The scope of the claims

[1] Image display means having a display screen, a frame having a conductive surrounding frame surrounding the display screen and containing the image display means, the display screen, or Provided on a light-transmitting and insulating cover member that covers the front surface of this display screen! /, A communication antenna, and an image display device with an antenna,

An image display with an antenna, characterized in that the communication antenna is provided on the display screen or the translucent cover member at a distance of 1 mm or more, preferably 2 mm or more from the conductive surrounding frame. apparatus.

[2] The image display device with an antenna according to [1], wherein the communication antenna is provided on the display screen.

[3] The antenna-equipped image according to [1], wherein the communication antenna is provided on the cover member surrounded by the conductive peripheral frame portion. Display device.

[4] The cover member has a structure in which a first translucent plate and a second translucent plate are overlapped, and the communication antenna includes the first translucent plate and the first translucent plate. 4. The image display device with an antenna according to claim 3, wherein the image display device is arranged between the two translucent plates.

[5] At least one power feeding portion of the communication antenna is constituted by a first conductive plate-like body,

The second conductive plate is capacitively coupled to the first conductive plate-like body by being substantially opposed to the first conductive plate-like body through the first or second translucent plate. Equipped with conductive plate,

5. The image display device with an antenna according to claim 4, wherein a lead wire for feeding is connected to the second conductive plate-like body.

[6] The communication antenna includes two power feeding units each composed of the first conductive plate, and the two second conductive plates,

The two first conductive plate-like bodies are substantially opposed to the two second conductive plate-like bodies through the first or second light-transmitting plate, respectively. The image display device with an antenna according to claim 5.

[7] A connector on which the second conductive plate-like body is attached is provided.

The power supply lead wire is attached to the connector,

7. The image display device with an antenna according to claim 5, wherein the power supply lead wire is connected to the second conductive plate-like body.

[8] The second conductive plate-like body is substantially opposed to the first conductive plate-like body through an inner translucent plate of the first and second translucent plates. 8. The image display device with an antenna according to claim 5, 6 or 7, wherein the image display device has an antenna.

[9] The image display device with an antenna according to [8], wherein the inner translucent plate has a thickness of 2.2 mm or less, preferably 1.5 mm or less.

[10] The thickness of the outer translucent plate is in the range of 2 to 6 times the thickness of the inner translucent plate, preferably in the range of 2.5 to 4 times. An image display device with an antenna as described in the item 8 or 9 of the range.

[11] The insulating case of the connector includes a first case portion having a small thickness that is substantially disposed on the rear surface side of the inner light-transmitting plate, and the inner light-transmitting property from the first case portion. A second case portion having a large thickness protruding sideward from the rear surface of the plate, and a step portion is provided between the first case portion and the second case portion, and the second case portion Is attached to the first case portion,

8. The image display device with an antenna according to claim 7, wherein a coaxial cable as the lead wire for power feeding is attached to the second case portion.

12. The image display device with an antenna according to claim 11, wherein the thickness force of the first case portion is in the range of 0.5 to 3 mm, preferably in the range of 1 to 2 mm. .

[13] The image display device with an antenna according to any one of [4] to [12], wherein each of the first and second translucent plates is a glass plate. .

14. The image display device with an antenna according to any one of claims 1 to 13, wherein the image display means is a liquid crystal display panel body.

[15] The image display device with an antenna according to any one of claims 1 to 14, wherein the communication antenna is formed of a conductive thin wire.

[16] The diameter of the conductive thin wire is in the range of 0.01 to 0.3 mm. The image display device with an antenna according to item 15 in the range.

[17] The communication antenna includes a conductive pattern cover formed on a resin film, and the antenna is displayed on the display screen or the translucent cover member by attaching the resin film to the display screen or the translucent cover member. The image display device with an antenna according to any one of claims 1 to 14, wherein the image display device is provided on a screen or the translucent cover member.

[18] The image with an antenna according to claim 17, wherein the conductive pattern has a width in a range of 0.3 to LOLO and a thickness in a range of 0.001 to 0.2 mm. Display device.

[19] The method according to any one of claims 1 to 18, wherein the conductive peripheral frame portion of the frame body is divided at at least one location and electrically insulated at the division location. The image display device with an antenna as described in any one of them.

[20] The image display with an antenna according to claim 19, wherein the dividing interval of the dividing portion is in a range of 0.2 to 5 mm, preferably in a range of 0.5 to 2 mm. apparatus.

[21] The image display with an antenna according to [19] or [20], wherein the both ends are joined by interposing a spacer between both ends of the divided part apparatus.

[22] A holder configured in a substantially U-shape is adhered to the vicinity of both side ends of the above-mentioned dividing point,

At least two slits are provided in the holder,

At least two tongue pieces are provided near the both ends of the conductive peripheral frame, and the at least two tongue pieces are inserted into the at least two slits, respectively, and are bent. An image display device with an antenna according to claim 19 or claim 20.

[23] An image display panel is constituted by the image display panel main body constituting the image display means and the frame body in which the image display panel main body is accommodated.

The antenna according to any one of claims 1 to 22, wherein an image display device main body including the image display panel is accommodated in a second frame. With image display.

[24] The communication antenna is a loop antenna,

24. The image display device with an antenna according to any one of claims 1 to 23, wherein a length of each side of the loop antenna is in a range of 100 to 140 mm.

[25] The first antenna element of the four antenna elements constituting the loop antenna extends the display screen or the translucent cover substantially along the first side edge of the conductive surrounding frame. Extends from this first side edge by at least 1 mm, preferably at least 2 mm,

Of the four antenna elements, the second antenna element attaches the display screen or the translucent cover to the second side edge adjacent to the first side edge of the conductive peripheral frame. 25. The image display device with an antenna according to claim 24, extending substantially along the second side end by 1 mm or more, preferably by 2 mm or more.

[26] The image display apparatus with an antenna according to any one of [1] to [23], wherein the communication antenna is a monopole antenna or a dipole antenna.

[27] The communication antenna is a substantially inverted L-shaped or substantially L-shaped antenna having first and second antenna elements,

The first antenna element preferably extends the display screen or the translucent cover substantially along the first side edge of the conductive peripheral frame portion by 1 mm or more from the first side edge. Extending 2mm or more apart,

The second antenna element has the display screen or the translucent cover member arranged along the second side end adjacent to the first side end of the conductive peripheral frame portion, along the second side end. An image with an antenna according to any one of claims 1 to 23 and 26, characterized in that it extends at least 1 mm from the side edge and preferably 2 mm or more away. Display device.

28. The range of claim 19 or 19, wherein the first and second antenna elements are within a distance force of 10 mm away from the first and second side end forces, respectively. Item 27. An image display device with an antenna according to item 27.

[29] The communication antenna is a dipole antenna having first and second antenna elements,

The display screen or the translucent cover is arranged substantially along a predetermined side edge of the conductive peripheral frame portion so that the first antenna element and the second antenna element are almost in a straight line as a whole. The antenna according to any one of claims 1 to 23, wherein the antenna extends from the predetermined side edge by 1 mm or more, preferably 2 mm or more. Attached image display device.

30. The image display apparatus with an antenna according to claim 29, wherein a distance that the first and second antenna elements are separated from each other by the predetermined side end force is within 10 mm. .