JPH09293452A - Exposure device for cathode ray tube panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exposure device for a cathode ray tube for exposing a cathode ray tube panel of different size. SOLUTION: This comprises a light source 130 provided in a base frame 120, a moving frame 160 provided in an upper side of the light source 130 to form a first hole 163, a moving means moving the moving frame 160 relative to a base frame 160, exposure lens 140 provided between the light source 130 and the moving frame 160 to adjust an irradiation angle of light, a panel 101 smaller than the first hole 163 of the moving frame 160 to be formed with a second hole 162 corresponding to the first hole 163 to be provided mountably/ demountably in the moving frame 160 to be stably mounted therein and an auxiliary frame 161 adjusting a distance to the light source 130. In the exposure device thus provided, the auxiliary frame 161 is used, many panels of different size can be exposed to be quickly easily replaced.

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 the inner surface of a cathode ray tube panel, and more particularly to a cathode ray tube of a different size using one exposure apparatus. The present invention relates to an exposure device for easily exposing a tube panel.

[0002]

2. Description of the Related Art Generally, when forming a black matrix on the inner surface of a panel of a cathode ray tube, an exposure apparatus as shown in FIG. 3 is used. The exposure apparatus is a light source 3 provided on the base frame 2 so as to irradiate the inner surface of the panel 1, and an exposure lens provided between the panels 1 and 3 for adjusting the angle of light reaching the panel 1. 4, a moving frame 6 that supports the panel 1, and a moving unit that moves the moving frame 6.

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 in the case of 20 inch than the 14 inch panel and in the case of 21 inch panel than the 20 inch panel.

As shown in FIG. 3, the moving means includes a motor 11 attached to 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 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 rotating force of the motor 11 to move the moving frame 6
Is reciprocated by a predetermined distance in the longitudinal direction of the screw shaft 12.

Holes 5 formed in the moving frame 6
Three pads 7 are provided around and the panel 1 is placed on the pads 7. The thickness of the pad 7 is the light source 3
Is determined in advance in consideration of the distance d from the panel 1 to the panel 1.

The reason for moving the panel 1 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. Also, 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 and the flatness of the upper surface of the moving frame 6 are different. This is to compensate for

In the conventional exposure apparatus as described above, there is no problem in exposing, for example, a 20-inch panel and then a 21-inch panel. That is, when the 20-inch panel is exposed and then the 21-inch panel is exposed, the thickness of the pad 7 may be made appropriate and the distance between the 21-inch panel and the light source 3 may be appropriately adjusted.

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

Due to such a problem, the moving frame 6 is conventionally disassembled from the base frame 2 and replaced with a moving frame having a different size for exposure, but the moving frame 6 should be replaced in this way. 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]

In order to achieve the above object, an exposure apparatus according to the present invention comprises a light source provided on the base frame, a movable frame provided on the upper side of the light source and having a first hole formed therein, 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 for adjusting an irradiation angle of light; and a smaller than a first hole of the moving frame, A second hole corresponding to the first hole is formed, and a panel that is detachably mounted on the moving frame and is seated on the moving frame and an auxiliary frame that adjusts a distance between the light sources are provided. And

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 the shaft of the motor, and a nut member fixed to the moving frame and screwed with the screw shaft. And a guide attached to the base frame for guiding the slider in the longitudinal direction of the screw shaft.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The exposure apparatus shown in FIG. 1 has a base frame 12 for irradiating the inner surface of a panel 101 with light.
0, the light source 130, the panel 101, and the light source 13
The exposure lens 140 provided between the moving frame 160 and the exposure lens 140 for adjusting the angle of light reaching the panel 101, the moving frame 160 supporting the panel 101, the auxiliary frame 161 provided on the moving frame 160, and the moving frame 160 are moved. And a moving means for moving the moving means.

The distance between the panel 101 and the light source 130 (see FIG. 4).
D) varies depending on the size of the panel 101 as described above. For example, each should be different for a 14 inch panel, a 20 inch panel and a 21 inch panel.

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 properly adjust the distance between the panel 101 and the light source 130 according to the type of the panel 101, a large number of auxiliary frames 161 having different thicknesses can be installed alternately.

The auxiliary frame 161 is the panel 1 to be exposed.
Many are provided according to the size of 01. For example, the auxiliary frame 161 shown in FIG.
The auxiliary frame 161 ′ shown in FIG. 2 is for exposing a 5-inch panel and 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, the second holes 162, 16 formed in the auxiliary frames 161, 161 '.
Three pads 170 and 170 'are provided around 2', and the panel 101 is placed on the pads 170 and 170 '. The thickness of the pads 170 and 170 ′ is predetermined in consideration of the distance from the light source 130 to the panel 101.

The first hole 1 is formed in the moving frame 160.
63 is formed, and the auxiliary frame 1 in which the second holes 162 and 162 'are formed on the first hole 163.
61, 161 'are provided. Therefore, the light of 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, 161 'on which the panel 101 is seated are mounted on the moving frame 1 by screws 164.
Fixed to 60. Therefore, the moving frame 160 is moved on the base frame 120 by the moving means, so that the auxiliary frames 161, 161 'and the panel 1 are moved.
01 is also moved together.

The moving means is 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 with the screw shaft 112. 113,
The slider 11 formed on the bottom surface of the moving frame 160
4 and the slider 1 attached to the base frame 120
And a guide 115 for guiding the fourteen. The moving unit 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 this embodiment having the above-mentioned components, the 14-inch panel is exposed and then 2
When exposing the 0-inch panel, the auxiliary frame 161 shown in FIG. 1 may be replaced with the auxiliary frame 161 ′ shown in FIG. 2 for exposure. Then, when exposing the 21-inch panel after exposing the 20-inch panel, the pad 170 ′ is used.
The thickness may be increased and the distance between the 21-inch panel and the light source 130 may be adjusted appropriately.

[0023]

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

[Brief description of 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 cross-sectional view of FIG.

[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)

[Claims] 1. 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 the moving frame is moved with respect to the base frame. A 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; and a second hole smaller than the first hole of the moving frame and corresponding to the first hole. An exposure apparatus for a cathode ray tube panel, comprising: a panel that is detachably provided on the moving frame and is seated on the moving frame; and an auxiliary frame that adjusts a distance between the light sources. 2. The exposure apparatus for a cathode ray tube panel according to claim 1, wherein the auxiliary frame can be 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, The exposure apparatus for a cathode ray tube panel according to claim 1, further comprising a slider attached to the moving frame, and a guide provided on the base frame to guide 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 cathode ray tube panel exposure apparatus according to claim 2, further comprising: 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.