JP3182364B2 - Exposure equipment for cathode ray tube panels - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube panel exposure apparatus for forming a black matrix on an inner surface of a cathode ray tube panel, and more particularly to a cathode ray tube having a different size by using one exposure apparatus. The present invention relates to an exposure apparatus for easily exposing a tube panel.

[0002]

2. Description of the Related Art Generally, an exposure apparatus as shown in FIG. 3 is used to form a black matrix on the inner surface of a panel of a cathode ray tube. The exposure device includes a light source 3 provided on a base frame 2 so as to irradiate light to an inner surface of the panel 1, and an exposure lens provided between the panel 1 and the light source 3 to adjust an angle of light reaching the panel 1. 4, a moving frame 6 supporting the panel 1, and moving means for moving the moving frame 6.

[0003] Referring to FIG. 4, the distance d between the panel 1 and the light source 3 should be changed according to the size of the panel 1. For example, the distance d between the panel and the light source 3 should be larger for a 20-inch panel than a 14-inch panel and for a 21-inch panel than a 20-inch panel.

As shown in FIG. 3, the moving means comprises a motor 11 mounted on the base frame 2, a screw shaft 12 connected to the shaft of the motor 11, and a screw shaft 12 fixed to the moving frame 6. Nut member 13 screwed with
And a slider 14 fixed to the bottom surface of the moving frame 6
And a guide 15 attached to the base frame 2 for guiding the slider 14. Due to such components, the moving means is driven by the rotational force of the motor 11 to move the moving frame 6.
Is reciprocated a predetermined distance in the longitudinal direction of the screw shaft 12.

A hole 5 formed in the moving frame 6
Are provided with three pads 7 on which the panel 1 is placed. The thickness of the pad 7 is the light source 3
Is determined in advance in consideration of the distance d from the control panel to the panel 1.

The reason why the panel 1 is moved using the moving means is to form a black matrix 8 corresponding to three colors on the inner surface of the panel 1 as is well known. As is well known, the reason why the panel 1 is placed on the pad 7 is that when the panel 1 is placed on the moving frame 6, the flatness of the sealing surface of the panel 1 is different from the flatness of the upper surface of the moving frame 6. This is to compensate for

The conventional exposure apparatus as described above does not cause any problems in exposing a 20-inch panel and then exposing a 21-inch panel. That is, when exposing the 21-inch panel after exposing the 20-inch panel, the thickness of the pad 7 may be adjusted appropriately, and the distance between the 21-inch panel and the light source 3 may be adjusted appropriately.

However, if the thickness of the pad 7 is increased to expose the 21-inch panel after exposing the 14-inch panel, the pad 7 becomes too thick, which is not good. That is,
External light enters the inside of the exposure apparatus and induces irregular reflection of light, and the size of the hole 5 provided in the moving frame 6 becomes relatively small, so that appropriate exposure is not performed.

Conventionally, the moving frame 6 is disassembled from the base frame 2 and replaced with a moving frame having a different size for exposure. However, the moving frame 6 will be replaced in this manner. If so, a lot of time and effort is required because other parts in the vicinity should be disassembled.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide an exposure apparatus having an improved structure so that a large number of panels having different sizes can be exposed quickly and easily.

[0011]

Means for Solving the Problems An exposure apparatus according to the present invention for achieving the above object, a base frame, a light source provided on the base frame, the first hole provided on the upper side of the light sources are formed Moving frame, moving means for moving the moving frame with respect to the base frame, an exposure lens provided between the light source and the moving frame to adjust the irradiation angle of light from the light source,
The smaller than the first hole of the mobile frame, a second hole is formed corresponding to the first hole, the moving
It is detachably mounted on the frame and has a
A panel is arranged to adjust the distance between the panel and the light source
And an auxiliary frame .

The auxiliary frame may be replaced with another auxiliary frame having a different height according to the size of the panel.

The moving means includes a motor fixed to the base frame, a screw shaft connected to a shaft of the motor, and a nut member fixed to the moving frame and screwed to the screw shaft. A slider attached to the moving frame; and a guide attached to the base frame for guiding the slider in a longitudinal direction of the screw shaft.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The exposure apparatus shown in FIG.
0, light source 130, panel 101 and light source 13
0, an exposure lens 140 for adjusting the angle of light reaching the panel 101, a moving frame 160 supporting the panel 101, an auxiliary frame 161 provided on the moving frame 160, and moving the moving frame 160. And a moving means for moving.

The distance between the panel 101 and the light source 130 (FIG. 4)
D) changes according to the size of the panel 101 as described above. For example, each should be different for 14 inch panels, 20 inch panels and 21 inch panels.

The exposure apparatus according to the present invention is characterized in that an auxiliary frame 161 is provided unlike the conventional exposure apparatus. That is, in order to appropriately adjust the distance between the panel 101 and the light source 130 according to the type of the panel 101, a number of auxiliary frames 161 having different thicknesses can be alternately installed.

The auxiliary frame 161 is the panel 1 to be exposed.
A large number is provided according to the magnitude of 01. For example, the auxiliary frame 161 shown in FIG.
The auxiliary frame 161 ′ for exposing a 5-inch panel and shown in FIG. 2 is for exposing a 20-inch panel or a 21-inch panel, and is higher than the auxiliary frame 161.

As shown in FIGS. 1 and 2, second holes 162, 16 formed in auxiliary frames 161, 161 'are formed.
Around the 2 ', three pads 170, 170' are provided, respectively, and the panel 101 is placed on the pads 170, 170 '. The thickness of the pads 170, 170 'is predetermined in consideration of the distance from the light source 130 to the panel 101.

The first hole 1 is provided in the moving frame 160.
The auxiliary frame 1 includes a first hole 163 and second holes 162 and 162 ′ formed on the first hole 163.
61, 161 'are provided. Accordingly, light from the light source 130 can reach the panel 101 through the first hole 163 and the second hole 162, and the second hole 162 is smaller than the first hole 163.

The auxiliary frames 161 and 161 'on which the panel 101 is seated are fixed to the movable frame 1 by screws 164.
Fixed to 60. Therefore, when the moving frame 160 is moved on the base frame 120 by the moving means, the auxiliary frames 161 and 161 ′ and the panel 1 are moved.
01 is also moved together.

The moving means includes a motor 111 fixed to the base frame 120, a screw shaft 112 connected to the shaft of the motor 111, and a nut member fixed to the moving frame 160 and screwed to the screw shaft 112. 113,
Slider 11 formed on the bottom of moving frame 160
4 and the slider 1 attached to the base frame 120.
And a guide 115 that guides the guide 14. The moving means configured as described above can reciprocate the moving frame 160 in the longitudinal direction of the screw shaft 112 by the rotational force of the motor 111.

In the exposure apparatus of the present embodiment having the above-described components, after exposing a 14-inch panel,
When exposing a 0-inch panel, the auxiliary frame 161 shown in FIG. 1 may be replaced with the auxiliary frame 161 'shown in FIG. Then, when exposing the 21-inch panel after exposing the 20-inch panel, the pad 170 'is used.
And the distance between the 21-inch panel and the light source 130 may be appropriately adjusted.

[0023]

As described above, the exposure apparatus according to the present invention can easily and quickly alternately expose a large number of panels of different sizes using auxiliary frames of different sizes.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an exposure apparatus according to the present invention.

FIG. 2 is a perspective view showing an exposure apparatus according to the present invention.

FIG. 3 is a perspective view showing a conventional exposure apparatus.

FIG. 4 is a schematic sectional view of FIG. 3;

[Explanation of symbols]

 101 panel 111 motor 112 screw shaft 113 nut member 114 slider 115 guide 120 base frame 130 light source 140 exposure lens 160 moving frame 161, 161 'auxiliary frame 162, 162' second hole 163 first hole 164 screw 170, 170 'pad

Claims (4)

(57) [Claims] A base frame; a light source provided on the base frame; a moving frame provided above the light source and having a first hole formed therein; and moving the moving frame with respect to the base frame. Moving means; an exposure lens provided between the light source and the moving frame to adjust an irradiation angle of light from the light source; a second hole smaller than a first hole of the moving frame and corresponding to the first hole. Is formed, and said movement
It is detachably mounted on the frame and has a
A panel is arranged to adjust the distance between the panel and the light source
An exposure apparatus for a cathode ray tube panel, comprising: 2. The apparatus according to claim 1, wherein the auxiliary frame is replaced with another auxiliary frame having a different height according to the size of the panel. 3. The moving means includes: a motor provided on the base frame; a screw shaft connected to a shaft of the motor; a nut member provided on the moving frame and screwed with the screw shaft; 2. The exposure apparatus according to claim 1, further comprising: a slider attached to a moving frame; and a guide provided on the base frame for guiding the slider in a longitudinal direction of the screw shaft. . 4. The moving means includes: a motor fixed to a base frame; a screw shaft connected to a shaft of the motor; a nut member fixed to the moving frame and screwed with the screw shaft; The exposure apparatus for a cathode ray tube panel according to claim 2, comprising: a slider attached to a moving frame; and a guide attached to the base frame and guiding the slider in a longitudinal direction of the screw shaft.