JPH06245170A - Flat type television receiver - Google Patents

Abstract

PURPOSE:To obtain a flat type television receiver which no cathode ray tube cover and coating of carbon or the like are not required, the productivity and reliability are improved and low cost is realized. CONSTITUTION:A frame chassis 12 is made of a synthetic resin, and it is processed in black color. The shape of a bottom surface 12b of the chassis 12 supporting a flat cathode ray tube 1 is made coincident with the shape of a screen panel 1c being a supported part of the tubet. The cathode ray tube 1 is integrated in the chassis 12. While the other side of a neck 1a is retained by a retainer piece 12a, a cathode ray tube retainer 13 is fitted to the chassis 12 by a screw 14 to retain the neck 1a and to fix the cathode ray tube 1 to the chassis 12. Since the chassis 12 is processed in black color, even when neither the cathode ray tube cover is used nor carbon is coated, a printed circuit board 11 or the like in the inside through a lower side of a transparent glass of side surfaces of the cathode ray tube 1 is not seen and problems of loss of a value of a commodity or the like are avoided, the productivity and reliability are improved and the low cost is realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type television receiver using a flat type cathode ray tube.

[0002]

2. Description of the Related Art FIG. 3 shows a flat type cathode ray tube (flat type CR
T) 1 is shown. In the figure, 1a is a neck portion provided with an electron gun (not shown), 1b is a funnel portion, 1
Reference numeral c is a screen panel, 1d is a front panel, 1e is a phosphor screen formed on the screen panel 1c, and 1f is an anode terminal. The fluorescent screen 1e is inclined at a relatively small angle with respect to the central axis of the electron gun, so that the image displayed on the fluorescent screen 1e can be observed from the front panel 1d side which is substantially perpendicular to the central axis of the electron gun. It has become. The screen panel 1c and the front panel 1d
Etc. are formed of transparent glass.

FIG. 4 is an exploded perspective view showing a flat type television receiver. In the figure, reference numeral 1 denotes the flat cathode ray tube described above, in which a deflection yoke 2 is arranged around a funnel portion 1b, a cathode ray tube connector 3 is connected to a terminal pin led out to an end portion of a neck portion 1a, and an anode is formed. An anode cap 4 for supplying a high voltage is connected to the terminal 1f.
The lower surface and the side surface of the cathode ray tube 1 are covered with a cathode ray tube cover 5 made of black plastic. The cathode ray tube cover 5 is formed in conformity with the shape of the cathode ray tube 1, and the tape 6
Is fixed to the cathode ray tube 1 using. This tape 6
It also has a function of protecting a contact portion of the cathode ray tube 1 with a frame chassis described later.

Further, 7 is a frame chassis made of stainless steel or iron, and the cathode ray tube 1 is incorporated in the frame chassis 7. In the cathode ray tube 1, while holding the side opposite to the neck portion 1a by a holding piece 7a formed on the frame chassis 7, attach the cathode ray tube holding 8 to the frame chassis 7 with a screw 9 and hold down the neck portion 1a side. Then, it is fixed to the frame chassis 7. Reference numeral 10 is a rubber member for stably holding the cathode ray tube 1 on the frame chassis 7. A circuit board 11 is arranged below the frame chassis 7.

[0005]

In the example of FIG. 4,
Since the lower surface and the side surface of the cathode ray tube 1 are covered with the cathode ray tube cover 5, the internal circuit board 11 and the like can be seen through the transparent glass on the lower surface and the side surface of the cathode ray tube 1, and there is no problem that the commercial property is lost. However, it is necessary to fix the cathode ray tube cover 5 to the cathode ray tube 1 using the tape 6,
There was a problem that the work efficiency decreased and the cost increased.

Conventionally, it is also known to apply a black material such as carbon to the lower surface and the side surface of the cathode ray tube 1 instead of using the cathode ray tube cover 5. However, since a process such as coating and drying is newly added, there is a problem that workability is poor and cost is increased.

Even when a black material such as carbon is applied to the lower surface and the side surface of the cathode ray tube 1, the cathode ray tube 1
It was necessary to use a protective tape or the like at the contact portion with the frame chassis 7. Further, when carbon is applied to the lower surface and the side surface of the cathode ray tube 1, it is necessary to take measures to protect the circuit board 11 from a circuit short circuit due to carbon peeling.

Therefore, the present invention provides a flat type television receiver which can improve productivity and reliability without costing the cathode ray tube cover or coating carbon, and can realize cost reduction. Is.

[0009]

SUMMARY OF THE INVENTION The present invention provides a flat type television receiver using a flat type cathode ray tube,
A frame chassis incorporating a flat cathode ray tube is provided, and a bottom surface and a side surface of the frame chassis supporting the flat cathode ray tube are subjected to black treatment.

For example, the shape of the bottom surface of the frame chassis is made to match the shape of the supported portion of the flat cathode ray tube. Further, for example, the frame chassis is formed using synthetic resin.

[0011]

In the present invention, since the bottom surface 12b and the side surface 12c of the frame chassis 12 supporting the flat cathode ray tube 1 are treated with black, the flat type cathode ray tube is not required to be coated or coated with carbon or the like. It is possible to avoid the problem that the internal circuit board and the like can be seen through the transparent glass on the lower surface and the side surface of the cathode ray tube 1 and the commercial property is lost. As a result, the assembling work is simplified, so that productivity and reliability are improved, and cost reduction can be realized.

The bottom surface 12b of the frame chassis 12
Since the shape of the flat cathode ray tube 1 is made to match the shape of the supported portion 1c of the flat cathode ray tube 1, adhesion between the flat cathode ray tube 1 and the frame chassis 12 is improved, and the flat cathode ray tube 1 does not require a rubber member. Can be stably fixed to the frame chassis 12, and the flat cathode ray tube 1 and the frame chassis 1
It is possible to satisfactorily prevent dust and the like from entering between the two.

Further, since the frame chassis 12 is made of synthetic resin, it can be easily processed and molded.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, parts corresponding to those in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

In the figure, reference numeral 12 is a black-colored frame chassis. The frame chassis 12 is formed by using a mold made of a synthetic resin such as ABS resin as a material. Flat type cathode ray tube 1 of frame chassis 12
The shape of the bottom surface 12b that supports the screen is formed to match the shape of the screen panel 1c that is the supported portion of the cathode ray tube 1. 2 shows the structure of the frame chassis. FIG. 2A is a plan view and FIG. 2B is a sectional view taken along the line aa in FIG.

The cathode ray tube 1 is incorporated in the frame chassis 12. The cathode ray tube 1 is not covered with the cathode ray tube cover 5 (see FIG. 4), and carbon or the like is not applied to the lower surface and the side surface. Cathode ray tube 1
Is held by the holding piece 12a formed on the frame chassis 12 on the side opposite to the neck portion 1a.
It is fixed to the frame chassis 12 by attaching 3 to the frame chassis 12 with the screw 14 and pressing the neck portion 1a side.

As described above, according to this embodiment, since the frame chassis 12 is treated with black color, the cathode ray tube 1 is provided with the cathode ray tube cover 5 (see FIG. 4) and the lower surface and the side surface are coated with carbon or the like. Even without doing so, it is possible to avoid the problem that the internal circuit board 11 and the like can be seen through the transparent glass on the lower surface and the side surface of the cathode ray tube 1 and the commercial property is lost. Therefore,
Since the assembling work is simplified, productivity and reliability are improved, and cost reduction can be realized.

The bottom surface 12b of the frame chassis 12
Since the shape of the cathode ray tube 1 is made to match the shape of the screen panel 1c which is the supported portion of the cathode ray tube 1, the cathode ray tube 1 and the frame chassis 12 have good adhesion, and the cathode ray tube 1 does not require a rubber member or the like. Can be stably fixed to the frame chassis 12, and dust and the like can be satisfactorily prevented from entering between the cathode ray tube 1 and the frame chassis 12. Further, since the frame chassis 12 is formed of synthetic resin, it can be easily processed and molded.

In the above-described embodiment, the frame chassis 12 is entirely blackened, but at least the portions corresponding to the lower surface and the side surface of the cathode ray tube 1, that is, the cathode ray tube 1 of the frame chassis 12 is supported. The bottom surface 12b and the side surface 12c thereof may be treated with black.

[0020]

According to the present invention, since the bottom surface and the side surface of the frame chassis for supporting the flat cathode ray tube are treated with black, the flat cathode ray tube is not required to be coated with a cathode ray tube cover or carbon. It is possible to avoid the problem that the internal circuit board or the like can be seen through the transparent glass on the lower surface or the side surface of the tube and the commercial property is lost. As a result, the assembly work is simplified, so that the productivity and reliability are improved, and the cost can be reduced.

Further, since the shape of the bottom surface of the frame chassis matches the shape of the supported portion of the flat cathode ray tube,
Adhesion between the flat cathode ray tube and the frame chassis is improved, the flat cathode ray tube can be stably fixed to the frame chassis without the need for a rubber member, and dust between the flat cathode ray tube and the frame chassis. Can be effectively prevented from entering.

Further, since the frame chassis is made of synthetic resin, it is possible to easily carry out work molding of, for example, the bottom shape.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a flat type television receiver according to the present invention.

FIG. 2 is a plan view and a cross-sectional view showing a configuration of a frame chassis.

FIG. 3 is a perspective view showing a flat cathode ray tube (flat CRT).

FIG. 4 is an exploded perspective view showing a conventional flat type television receiver.

[Explanation of symbols]

 1 flat cathode ray tube 2 deflection yoke 3 cathode ray tube connector 4 anode cap 11 circuit board 12 frame chassis 13 cathode ray tube retainer

Claims (3)

[Claims] 1. A flat television receiver using a flat cathode ray tube, comprising: a frame chassis incorporating the flat cathode ray tube, wherein a bottom surface and side surfaces of the frame chassis supporting the flat cathode ray tube are provided. A flat type TV receiver characterized by being black-processed. 2. The flat-type television receiver according to claim 1, wherein a bottom surface shape of the frame chassis is matched with a shape of a supported portion of the flat cathode ray tube. 3. The flat-type television receiver according to claim 1, wherein the frame chassis is made of synthetic resin.