JPH09121317A - Compact television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to use a microminiaturized liquid crystal television(LCT) even on a desk without losing its portability by mounting an LCT body provided with a battery on a desk type battery charger and mutually connecting prescribed terminals. SOLUTION: The desk type battery charger 10 receives prescribed power supply from a commercial power supply by inserting an AC adaptor cord 22 to a power supply input terminal formed on the rear face of the charger 10. On the other hand, a video signal and a sound signal are received by connecting an external antenna to an antenna input terminal. The charger 10 is put on a desk and the LCT 1 is obliquely erected on a mounting part 11. Then a sound output and antenna output cord 21 connected to the rear face of the charger 10 is inserted into an earphone and antenna terminal formed on the upper face of the LCT 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk-top compact television receiver using an ultra-compact liquid crystal television.

[0002]

2. Description of the Related Art Conventionally, the following liquid crystal televisions have been considered in order to realize a very small liquid crystal television that can be carried in a pocket. That is, in order to realize the miniaturization by omitting the rod antenna and the speaker, the voice is heard by the earphone, and the antenna is configured to receive by using the cord of the earphone. By doing so, it is possible to realize a liquid crystal television capable of watching television anywhere. Further, by using a rechargeable battery as the power source, running cost can be reduced.

[0003]

By the way, there is a demand for using the above-mentioned ultra-compact liquid crystal television not only outdoors or on the road, but also on the desk. However, the LCD TV made with the above-mentioned importance of portability must be placed on the table with good stability in order to be used well on the table. However, it was not possible to make good use on a desk while maintaining portability.

The present invention provides a small television receiver that is easy to use even on a desk without sacrificing the portability of an ultra-small liquid crystal television.

[0005]

In order to solve the above problems, the invention according to claim 1 is a small-sized television receiver, which is a liquid crystal television having a rechargeable battery, a charged terminal, an earphone output terminal, and an antenna input terminal. It is characterized by a main body and a desktop charger having a shape for mounting the liquid crystal television main body and having a charging terminal, an audio output terminal, an antenna output terminal, a speaker, and an antenna input terminal.

In this way, the liquid crystal television body equipped with the rechargeable battery is placed on the tabletop charger, and the charged terminal of the liquid crystal television body, the earphone output terminal, the antenna input terminal, the charging terminal of the charger, Since it becomes a small TV receiver for desktop with the audio output terminal and the antenna output terminal connected, the LCD TV main body is charged while it is placed on the table, and the antenna connected to the antenna input terminal of the charger The video signal and the audio signal received by are input to the liquid crystal television main body and an image is displayed on the liquid crystal screen, and at the same time, the audio signal is sent to the charger again and the audio is output from the speaker. Therefore, while maintaining the portability as an ultra-compact liquid crystal television, it becomes easy to watch and listen to the television on a desk, and charging can be performed at the same time.

The invention according to claim 2 is the same as claim 1
The small television receiver according to claim 1, wherein the liquid crystal television main body includes an earphone output / antenna input terminal in place of the earphone output terminal and the antenna input terminal, and the charger has the audio output terminal and the antenna output terminal. It is characterized by a configuration including a voice output / antenna output cord instead. In this way, by combining the liquid crystal television main body having the earphone output / antenna input terminal and the charger having the audio output / antenna output cord,
By connecting the cord for audio output and antenna output of the charger to the earphone output and antenna input terminal of the LCD TV body, while maintaining portability as an ultra-compact LCD TV, put it on the desk, Not only can it be charged, but it is also easy to watch TV.

[0008] Further, the invention according to claim 3 is based on claim 1.
Alternatively, in the small television receiver described in 2, the liquid crystal television main body is provided with an external power supply input terminal, and the charger is provided with an external power supply output terminal. In this way, the main body of the LCD TV with the external power input terminal,
Even when combined with a charger equipped with an external power supply output terminal, the external power supply output terminal of the charger can be connected to the external power supply input terminal of the LCD TV main body, and the desktop power supply can be achieved without the use of a rechargeable battery. You can watch LCD TV with.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a small television receiver according to the present invention will be described below with reference to FIGS. First, FIG. 1 shows a small television receiver as an example to which the present invention is applied, and schematically shows the relationship between a liquid crystal television main body and a charger when used on a table together with cords. FIG. 2 is an exploded perspective view, in which cords and a volume switch of the charger are omitted, and a terminal portion inside the charger is shown by a dotted line.

In these FIGS. 1 and 2, 1 is a liquid crystal television, 2 is a television screen (liquid crystal screen), 3 is a battery lid,
4 is a switch, 5 is a GND (ground) terminal, 6 is a plus terminal for charging, 7 is a plus terminal for watching, 10 is a charger, 11 is a television mounting portion, 12 is a speaker, 13 is a volume control, and 14 is Power monitor lamp, 15 is a charge monitor lamp, 16 is a switch switching protrusion, 17 is a GND contact pin, 18 is a positive contact pin for charging,
9 is a plus contact pin for looking, 21 is a voice output / antenna output cord, and 22 is an AC adapter cord.

That is, the liquid crystal television 1 is a 1.8-inch type TFT (Thin Film Transistor).
Thin film transistor) LCD screen (LCD screen)
2 is provided in the upper half of the front face, a rechargeable battery 31 can be used in addition to the dry battery 30, as will be described later, and it is an ultra-compact and lightweight device that can be carried in a pocket. Further, as shown in the figure, the liquid crystal television 1 is provided with a battery lid 3 in the lower half of the back surface,
A switch 4, a GND (ground) terminal 5, a charging positive terminal 6 and a looking positive terminal 7 are provided on the lower surface. In addition, in such a pocket-type liquid crystal television 1,
Although not shown, the earphone / antenna terminal (earphone output / antenna input terminal), a channel tuning switch and a volume control are provided on the top surface, and a power switch for both VHF / UHF switching, a TV / audio switching switch, etc. are provided on the side surface. It is equipped. Therefore,
The pocket-type liquid crystal television 1 as described above can be used and viewed alone by inserting an earphone cord (not shown) also serving as an antenna into the terminal for the earphone serving as an antenna and connecting the terminals.

As shown in the figure, the charger 10 is of a desk stand type having a television mounting portion 11 on which the liquid crystal television 1 is mounted so as to lean diagonally, and a speaker 12 is provided on its side surface. Together with the volume control 13, power supply monitor lamp 14 and charging monitor lamp 1 on the front side.
5 are arranged side by side. Further, as shown in FIG. 5, the switch switching projection 1 is provided on the lower surface of the television mounting portion 11.
6, GND contact pin 17, positive contact pin 18 for charging and positive contact pin 19 for watching
Are arranged side by side. Further, although not shown, such a desktop charger 10 has a power input terminal, an antenna input terminal, and an antenna output terminal on the back surface,
Audio output and antenna output cord 2 on the antenna output terminal
1 is connected and provided, and the AC adapter cord 22 can be inserted into the power input terminal.

In the desk-top type charger 10 as described above, the AC adapter cord 22 is inserted into the power input terminal on the rear surface described above, and power of a predetermined voltage is supplied from the commercial power source by the power adapter (AC adapter) not shown. In addition to receiving the signal, an external antenna (not shown) is inserted into the antenna input terminal and connected, so that the video signal and the audio signal are received. Therefore, after placing the charger 10 on the table and placing the liquid crystal television 1 on the television placement portion 11 so as to lean on the television, the voice output / antenna output cord 21 provided on the back of the charger 10 is provided. By plugging into the earphone / antenna terminal on the upper surface of the liquid crystal television 1, the rechargeable battery 31 of the liquid crystal television 1 can be charged and the television screen 2 can be viewed.

That is, when the liquid crystal television 1 is placed on the television placement portion 11 of the charger 10, the switch switching protrusion 16, the GND contact pin 17, the charging plus contact pin 18 and the lower portion of the television placement portion 11 are viewed. For the plus contact pin 19 for the switch 4 on the bottom of the LCD TV 1,
The GND terminal 5, the charging plus terminal 6 and the looking plus terminal 7 are connected to each other. As a result, the electric power supplied to the charger 10 as described above is output to the charging terminal (the charging plus contact pin 18 to the charging plus terminal 6) to the rechargeable battery 31 built in the liquid crystal television 1. In addition to being supplied, it is output from the for-use plus contact pin 19 to the for-use plus terminal 7 while looking and is supplied to the power supply circuit E1 of the liquid crystal television 1 described later.

The video signal and the audio signal received by the charger 10 by the external antenna are supplied to the earphone / antenna terminal of the liquid crystal television 1 through the audio output / antenna output cord 21 and the audio signal is reproduced again. Only the signal is supplied from the liquid crystal television 1 side to the charger 10 side via the audio output / antenna output cord 21. Thus,
The audio signal supplied from the liquid crystal television 1 side to the charger 10 side is amplified by an amplifier (not shown) built in the charger 10 and emitted from the speaker 12. This speaker 12
The volume emitted from is adjustable by the volume control 13.

A pocket-type liquid crystal television 1 and a desk-top charger 1 which constitute the above-mentioned desk-top compact television receiver.
0, first, the power supply circuit E1 of the liquid crystal television 1 is shown in FIG.
In the drawing, 8 is a power source plus terminal, 9 is a GND terminal, 30 is a dry battery, and 31 is a rechargeable battery. That is, in the power supply circuit E1 of the liquid crystal television 1, when the dry battery 30 is used, as shown in FIG. 3A, the switch 4 in the closed state and the dry battery 30 are connected between the power source plus terminal 8 and the GND terminal 9. Are in a serial state, and the power of the dry battery 30 is supplied to the television circuit including the liquid crystal drive circuit, the backlight circuit, and the audio circuit of the liquid crystal television 1. Also,
When the rechargeable battery 31 is used, as shown in FIG. 3B, the switch 4 in the closed state and the rechargeable battery 31 are in a series state between the power source plus terminal 8 and the GND terminal 9, and Battery 3
The power of 1 is supplied to the television circuit including the liquid crystal drive circuit, the backlight circuit, and the audio circuit of the liquid crystal television 1.

The relationship between the power supply circuit E1 of the liquid crystal television 1 and the charger 10 is configured as shown in FIG.
In the figure, 20 is a charger-side power output contact pin.
That is, FIG. 4 shows the time of charging while looking, and the charger side power supply output contact is made to the switch 4, the GND terminal 5, the charging plus terminal 6 and the looking plus terminal 7 of the power supply circuit E1 of the liquid crystal television 1. Switch switching projection 16 of pin 20, GND contact pin 17, positive contact pin 18 for charging, and positive contact pin 1 for watching
9 are connected to each other, and in particular, the switch 4 of the power supply circuit E1 of the liquid crystal television 1 is pushed into the open state (cut state) by the switch switching protrusion 16 of the charger 10. ing.

As described above, the TV power and the charging power during charging while watching the liquid crystal TV 1 are supplied from the charger-side power output contact pin 20. The charging of the rechargeable battery 31 of the liquid crystal television 1 is performed from the charging positive contact pin 18 on the charger 10 side via the rechargeable battery 31 to GND.
This is done in the circuit to terminal 9. In this case, since the switch 4 of the power supply circuit E1 of the liquid crystal television 1 is pushed and cut by the switch switching protrusion 16 of the charger 10, the rechargeable battery 31 does not discharge.

Further, temporarily, not the rechargeable battery 31 but the dry battery 3
Even in the case of 0, since the switch 4 is turned off, the reverse current does not flow from the positive contact pin 19 (the positive terminal 7 for watching) while observing the discharge. In addition, LCD TV 1
The television power for charging while watching is supplied from the watching plus contact pin 19 on the charger 10 side through the watching plus terminal 7 while watching the liquid crystal television 1.

Further, the relationship between the lower case of the liquid crystal television 1, the internal board and each component is constructed as shown in FIG. 6, in which 23 is a linear board, 24 is a minus battery spring, and 25 is a minus. -Plus battery spring, 26 is a positive battery spring, 27 is a charging contact pin, 28 is a lower case, and 29 is a battery housing. The relationship between the rechargeable battery 30 built into the battery storage portion 29 of the liquid crystal television 1 and the battery lid 3 of the battery storage portion 29 is configured as shown in FIG. 7, in which 32 is a GND terminal and 33 is a terminal. Is a plus terminal and 34 is a charging plus terminal.

As described above, the liquid crystal television 1 is placed so as to lean diagonally on the television placement portion 11 of the charger 10 which is placed on the table and connected to the AC adapter cord 22, and which also serves as an earphone output of the liquid crystal television 1. By connecting the audio output / antenna output cord 21 of the charger 10 to the antenna input terminal, the rechargeable battery 31 of the liquid crystal television 1 can be charged, and the video signal and the audio signal received by the external antenna of the charger 10 can be charged. Can be input to the liquid crystal television 1 to display an image on the television screen 2, and at the same time, an audio signal can be sent to the charger 10 again and audio can be output from the speaker 12.
Therefore, it is possible to charge the rechargeable battery 31 with the charger 10 on the desk and at the same time to place it on the charger 10 with good stability for viewing even though the liquid crystal television 1 is ultra-compact and excellent in portability. Become.

In the above embodiment, the video signal and the received signal received by the external antenna on the side of the charger 10 are guided to the main body of the liquid crystal television 1 by using the code 21, and the audio is reproduced by using the code 21 again. Although the signal is guided to the charger 10, the present invention is not limited to this.
By providing an antenna terminal and an audio signal terminal near the charging terminals 6 and 18, the main body of the liquid crystal television 1 and the charger 10 may be connected with one touch. Further, in the embodiment, the power adapter (AC adapter) is provided separately from the charger 10. However, the power adapter is provided in the charger 10 so that the commercial power source supplies the power directly to the charger 10. May be. In this way, connect the power adapter to the charger 1.
If it is provided within 0, there is an advantage that the charger 10 becomes heavy and the stability is further improved. Furthermore, in the embodiment, the rechargeable battery 31 is housed and built in the main body of the liquid crystal television 1, but a rechargeable battery of a type that is connected to the main body of the liquid crystal television 1 may be used. Of course, it can be changed to.

By the way, the above-described liquid crystal television 1 is provided with a slide-type shutter for protecting the liquid crystal display panel constituting the television screen 2, and the shutter can be closed while the power switch is turned on. , The backlight on the back side of the liquid crystal display panel is turned off, and only the voice can be heard. As described above, the TV screen 2 of the liquid crystal TV 1 is closed by the sliding shutter, the backlight on the back side of the liquid crystal display panel is turned off, and only the sound can be heard, whereby the battery consumption can be reduced. It has become a thing. Hereinafter, the mounting of the liquid crystal display module, the ground spring, the electronic components, etc., including the structure of such a shutter, will be described.

First, FIG. 8 is an exploded perspective view showing the relationship between the liquid crystal display module and the backlight in the liquid crystal television 1. In the figure, 35 is a liquid crystal display panel unit, 36 is a flat tube backlight unit, and 37 is a backlight unit. The prism sheets 38 and 39 are square frame-shaped spacers. That is, on the back side of the liquid crystal display panel unit 35 that constitutes the television screen 2 of the liquid crystal television 1, a backlight unit 36, which is a flat tube as a flat light source, is arranged. A configuration in which a square frame-shaped spacer 38 is provided on the backlight unit 36, a prism sheet 37 is provided thereon, a square frame-shaped spacer 39 is again provided thereon, and a liquid crystal display panel unit 35 is stacked thereon. Has become.

The clearance between the liquid crystal display panel unit 35 and the flat panel backlight unit 36 is the thickness of the prism sheet 37 and the square frame spacers 38 and 39 above and below the prism sheet 37. , 0 to + 1m
m is desirable. Further, it is necessary to provide a clearance for the positioning pin (not shown) in consideration of the thermal expansion dimension of the prism sheet 37 in the lateral direction. As described above, when the prism sheet 37 is used in the case of a flat light source instead of the diffusion sheet, the square frame-shaped spacer 38 is inserted on the backlight unit 36 side by the flat tube and the liquid crystal display panel unit 35 side is also installed. The prism-shaped frame-shaped spacer 39 is inserted, and the prism sheet 37 is not completely pressed in the thickness direction so that the prism sheet 37 has a certain degree of freedom. It is possible to prevent adsorption of the prism sheet 37 and generation of Newton's rings due to expansion.

Next, FIG. 9 shows an earth spring attached to the shield case in the liquid crystal television 1, and FIG. 10 is a plan view showing an earth spring attachment portion of the shield case incorporated in the upper case of the liquid crystal television 1. 9 and 10, reference numeral 40 is a ground spring, 41 is a spring tip portion, 42 is a hook portion, 43 is a side protrusion, 44 is a spring portion, 45 is an upper case, 46 is a shield case, and 47 is a stop hole. , 48 are presser pieces. That is, the earth spring 40 is
As shown in FIGS. 9 (a), 9 (b) and 9 (c), a hook portion 42 is formed on the spring tip portion 41 by half-punching, and is made of a simple sheet metal. As shown, the side projections 43, 4 are formed on the left and right sides of the middle part with a slight angle.
3 is formed, and its rear portion is used as a spring portion 44 that rises diagonally.

Further, as shown in FIG. 10, the liquid crystal television 1
On the back surface of the shield case 46 of the backlight unit 36 made of the above-mentioned flat tube which is incorporated in the upper case 45, a stop hole 47 by punching and a pair of pressing pieces 48, 48 by half punching are formed. FIG. 11 shows the attachment of the ground spring 40 to the shield case 46. As shown in FIG.
6, along the back surface of the 6, between the pressing pieces 48, 48, the spring end portion 41 of the earth spring 40 is inserted, the hook portion 42 is fitted into the stop hole 47, and the side projection pieces 43, 43 are pressed down. 11 by inserting each into
As shown in (a), the ground spring 40 is attached to the back surface of the shield case 46.

In this way, the earth spring 40 is in a state in which the hook portion 42 is fitted into the retaining hole 47 with respect to the back surface of the shield case 46, and the side projections 43, 43 are inserted into the pressing pieces 48, 48. As shown in FIG. 9B, since the pressure contact surface side with respect to the shield case 46 is slightly angled from the spring tip portion 41 to the intermediate portion, the pressure due to the pressure contact with the shield case 46 is reduced. It is kept to prevent the earth spring 40 from coming off. By attaching the earth spring 40 in this way, the conventional welding process can be eliminated, and during packaging / transporting, it is possible to eliminate the concern of deformation of the spring portion by transporting each part, and the cost can be reduced than before. . Further, although the stop hole 47 and the pressing pieces 48, 48 are half punched out on the back surface of the shield case 46, since the pressure contact method is used when mounting the earth spring 40, the stop hole 47 and the pressing hole are provided on the back surface of the shield case 46. Since the earth spring 40 is attached so as to close the hole formed by half-punching the pieces 48, 48, the shield effect is maintained.

Next, FIG. 12 shows a state in which a shutter incorporated in the liquid crystal television 1 is closed, and is a perspective view showing internal shutter-related terminal parts with the upper case seen through, and FIG. FIG. 6 is a perspective view showing a terminal component with the shutter in a closed state in a see-through state. These figures 1
2 and FIG. 13, 49 is a shutter, 50 is a contact terminal on the upper case 45 side, and 51 is a contact terminal on the shutter 49 side. That is, the liquid crystal television 1 has its television screen 2
In order to manually open and close the shutter, a vertically slidable shutter 46 as shown in the drawing is incorporated, and a pair of left and right contact terminals 50, 50 are provided inside the upper case 45 below the TV screen 2. Contact terminals 51 are provided by welding on the back surface of the upper portion of the shutter 46 in the width direction. Here, the shutter 46 and the contact terminals 50 and 51 are
Both are made of simple sheet metal, and grease is applied in advance to prevent scraping due to contact with each other.

FIG. 14 shows a circuit configuration of shutter-related terminal parts. A pair of left and right contact terminals 50, 50 on the upper case 45 side is provided with a low voltage power source on the primary side of the inverter transformer of the backlight 52. It is connected. Therefore, as shown in FIG.
When the shutter 6 is closed, the contact terminal 5 on the shutter 46 side
1 is an upper case 4 as shown in FIGS. 13 and 14.
Since there is no contact with the pair of left and right contact terminals 50, 50 on the 5 side, there is no electrical continuity and the backlight 52 does not light. Further, as shown in FIG. 15, when the shutter 46 is opened, as shown in FIG. 16, the contact terminal 51 on the shutter 46 side has a pair of left and right contact terminals 5 on the upper case 45 side.
It comes into electrical conduction by contacting 0 and 50. That is,
As shown in FIG. 14, the pair of left and right contact terminals 50, 50 on the upper case 45 side is connected to the low-voltage power source on the primary side of the inverter transformer of the backlight 52, so only when the shutter 46 is opened. Power can be supplied to the primary side to turn on the backlight 52.

In this way, the television screen 2 of the liquid crystal television 1
Is closed by the slide type shutter 49, and the backlight 5
By turning off the light 2 so that only the voice can be heard, the battery consumption can be reduced. Then, the use of the conventional micro switch is stopped, and the contact terminal 5 made of sheet metal is used.
By using 0,51, cost reduction and size reduction can be achieved.

As described above, not only is the screen 2 closed by the protective shutter 49 to turn off the backlight 52, but the shutter 49 is closed so that the backlight 52 and the liquid crystal drive are both stopped. Good. When the shutter 49 is closed and the backlight 52 and the liquid crystal driving are both stopped in this manner, there is an advantage that the current consumption is further reduced.

Next, FIG. 17 is a perspective view showing an example of mounting electronic components on a board in the liquid crystal television 1, and FIG. 18 is a side view showing a mounting structure of a connector on the board. In FIGS. 17 and 18, reference numeral 53 is a substrate, 54 is a horizontal connector, 55 is a lead leg, 56 is a chip component, and 57 is a cable. That is, as shown in the figure, before mounting the horizontal connector 54 on the substrate 53, in which a cable is inserted from the side and connected, before mounting the chip component 56, which is a small electronic component, in advance. As shown in FIG. 18, the lead legs 55 are inserted and fixed to the substrate 53, and the sideways-out type connector 54 is mounted on the chip component 46 for mounting.

As described above, by adopting the mounting mode in which the sideways-out type connector 54 is mounted on the chip part 46, the mounting structure shown in FIG.
As shown in FIG. 5, the cable 57 can be easily inserted into the horizontal connector 54 on the substrate 53 from the side. Therefore, it is not necessary to dispose the horizontal connector 54 on the end face side of the substrate 53 in consideration of the insertion of the cable, so that the degree of freedom in board mounting design is increased, the workability of inserting the cable is improved, and the exterior The influence on the product can be reduced.

Further, an example of mounting other electronic components on the substrate 53 is shown in FIG. First, FIG. 19A shows the mounting structure of the electrolytic capacitor 58. As shown in the figure, the lead legs 59, of the electrolytic capacitor 58 mounted on the substrate 53 are
The chip component 60 is placed between the 59. FIG.
9 (b) shows a mounting structure of the crystal oscillator 61.
As shown in the figure, the chip component 63 is placed between the lead legs 62, 62 of the crystal oscillator 61 mounted on the substrate 53. The above chip components 56, 60, 63 may be dummy components. Further, an appropriate spacer may be used instead of the chip component.

[0036]

As described above, according to the small television receiver of the first aspect of the present invention, the liquid crystal television main body is mounted on the desk-top type charger, and its charged terminal, earphone output terminal, By connecting the charging terminal of the charger, the audio output terminal, and the antenna output terminal to the antenna input terminal, you can charge the LCD TV main body while it is placed on the desk, and also with the video signal received by the antenna of the charger. An audio signal can be input to the liquid crystal television main body to display an image on the liquid crystal screen, and at the same time, the audio signal can be sent to the charger again to output audio from the speaker. Therefore, while maintaining the portability as an ultra-compact liquid crystal television, it can be charged while being placed on a table, and at the same time, can be viewed easily.

According to the small television receiver of the invention of claim 2, the earphone output / antenna input terminal of the liquid crystal television body mounted on the desk-top charger is connected to the audio output / antenna of the charger. By connecting the output cord, similar to the effect obtained by the invention according to claim 1, while maintaining portability as an ultra-compact liquid crystal television, it can be charged while being placed on a desk, and at the same time, It can be easy to view.

Further, according to the small television receiver of the third aspect of the present invention, the external power source output terminal of the charger is connected to the external power source input terminal of the liquid crystal television body mounted on the desktop charger. As a result, in addition to the effect obtained by the invention according to claim 1 or 2, the effect that the liquid crystal television can be viewed on the desk by supplying the external power source without using the rechargeable battery is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a small-sized television receiver to which the present invention is applied, which is an exploded view schematically showing the relationship between a liquid crystal television body and a charger when used on a table together with cords. It is a perspective view.

FIG. 2 is an exploded perspective view in which the cords of FIG. 1 and a volume switch of a charger are omitted, and a terminal portion inside the charger is shown by a dotted line.

FIG. 3 shows a power supply circuit on the liquid crystal television body side,
(A) is a circuit diagram showing the use of a battery, and (b) is a circuit diagram showing the use of a rechargeable battery.

FIG. 4 is a circuit diagram showing a relationship between a power supply circuit on the liquid crystal television main body side and a charger, showing a state of charging while looking.

5 is an exploded perspective view showing a terminal portion inside the charger in FIG. 2 in a see-through state.

FIG. 6 is an exploded perspective view showing the relationship between the lower case of the liquid crystal television main body, the internal board, and each component.

FIG. 7 is an exploded perspective view showing a relationship between a rechargeable battery built into the liquid crystal television body and a battery lid.

FIG. 8 is an exploded perspective view showing a relationship between a liquid crystal display module and a backlight in the liquid crystal television body.

9A and 9B show a ground spring attached to a shield case in the liquid crystal television main body, wherein FIG. 9A is a plan view, FIG. 9B is a side view, and FIG. 9C is along the arrow AA line in FIG. FIG.

FIG. 10 is a plan view showing a ground spring attachment portion of a shield case incorporated in the upper case of the liquid crystal television body.

FIG. 11 is a plan view showing a state where the earth spring is attached to the shield case shown in FIG. 10, FIG.
(B) is a figure of only the principal part explaining how to attach.

FIG. 12 is a perspective view showing a state in which a shutter incorporated in the main body of the liquid crystal television is closed, and is a perspective view showing internal shutter-related terminal parts with the upper case seen through.

13 is a perspective view showing the terminal component with the shutter in the closed state of FIG. 12 being in a see-through state.

FIG. 14 is a schematic diagram showing a circuit configuration of shutter-related terminal parts.

FIG. 15 is a similar perspective view showing a state where the shutter of FIG. 12 is opened.

16 is a perspective view showing the terminal component with the shutter in the opened state of FIG. 15 being in a see-through state.

FIG. 17 is a perspective view showing an example of mounting electronic components on a substrate in a liquid crystal television body.

18 is a side view showing a mounting structure of the connector on the board of FIG.

19A and 19B show examples of mounting other electronic components on a substrate, wherein FIG. 19A is a side view showing a mounting structure of an electrolytic capacitor, and FIG. 19B is a side view showing a mounting structure of a crystal oscillator. is there.

[Explanation of symbols]

 1 LCD TV 2 TV screen (liquid crystal screen) 3 Battery cover 4 Switch 5 GND terminal 6 Positive terminal for charging 7 Positive terminal for watching 10 Charger 11 TV mounting part 12 Speaker 13 Volume volume 14 Power monitor lamp 15 Charge monitor lamp 16 Switch switching protrusion 17 GND contact pin 18 Charging positive contact pin 19 Looking positive contact pin 20 Charger side power output contact pin 21 Audio output and antenna output cord 22 AC adapter cord 30 Dry battery 31 Rechargeable battery

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masanori Kishi 2-229 Sakuragaoka, Higashiyamato-shi, Tokyo Casio Computer Co., Ltd. Tokyo office (72) Kazuhiko Kanda 2-229 Sakuragaoka, Higashiyamato-shi, Tokyo Kashi O Computer Co., Ltd. Tokyo office

Claims (3)

[Claims] 1. A liquid crystal television main body having a rechargeable battery, a charged terminal, an earphone output terminal, and an antenna input terminal, and a shape capable of mounting the liquid crystal television main body, a charging terminal, an audio output terminal, an antenna output terminal, and a speaker. , A table-top charger having an antenna input terminal, and a small television receiver. 2. The liquid crystal television main body comprises an earphone output / antenna input terminal in place of the earphone output terminal and the antenna input terminal, and the charger outputs audio in place of the audio output terminal and the antenna output terminal. The small television receiver according to claim 1, further comprising a code for dual antenna output. 3. The small television receiver according to claim 1, wherein the liquid crystal television main body has an external power source input terminal, and the charger has an external power source output terminal.