TW498680B - Backlight with dust shield - Google Patents

Abstract

The present invention relates to a type of backlight assembly with a dust shield. The backlight assembly, consisting of an aperture, a backlight, and a dust shield, can be applied on a scanner for the scanning of any transmission-type document as the required light source for the scanning of any transmission-type document, the backlight is located at the aperture. The movable dust shield is equipped on one side of the aperture to cover the backlight. Instead of being assembled individually by other components, the built-in dust shield is designed for easy operation, simple construction, and low production cost. After being opened, the dust shield is situated inside the backlight assembly to avoid any drop-off. The backlight can be designed to have the same width as a negative film for the scanning of any small-size document.

Description

498680 V. Description of Invention (1) [Field of Invention]

The invention relates to a backlight panel assembly and a backlight panel assembly with a dust cover. [Background of the Invention] With the advancement and development of science and technology, the integration and use of multi-media has become a trend. The so-called multimedia refers to data content including various data types such as text, video = sound. In order to display data in the form of media, many multimedia devices for scanning images have been developed. However, for image processing, image scanning is one of the tools that users often use. Regarding the scanner's principle, simply put the light on the document to be scanned, and then use the carriage to receive the reflected light, and then use the images from the sensor # and the two documents. Since the image sensed by the optical machine is only the sequence to be scanned: ‘cause &, the optical machine must be moved step by step during scanning in order to complete the scanning according to the scan text ^. It should be noted that & is a so-called reflective document described above, however, as for how to use a field & trace document, a detailed description will be described below. Photograph 2 of the first scan, which shows the bottom cover ^ 4 and 1 of a traditional scanable penetrating document. In Figure 1, the scanner includes a base, and a cover 104. A pivot bolt 106 is connected to the base 102, so that the Yu 104 can be opened and closed on the base 102. Its ins, τ lane cliff 102 includes (as shown by the dashed line in Fig. 1) and scanning platform 1 and platform 110 on the platform 110, and a transmissive document 112 is scanned, and The flip cover 104 is provided with a lift 498680. V. Description of the invention (2) A light source (not shown in the figure) required for drawing and a backlight board assembly 114 for guiding the light source. The backlight board assembly 11 4 includes a panel 115 and a square opening 11 7, and the square opening 11 7 is located on the panel 1 15 and is opposite to the scanning platform 丨 丨. During scanning, the light source is projected onto the transmissive document 112 through the backlight plate 1 丨 6 located at the square opening 11 7. In order to obtain a clearer image, 11 6 is transparent and its surface must be kept clean. In this way, the image of the transmissive document 1 12 captured by the optical machine 108 is clearer. Otherwise, as long as the backlight 1 1 6 is contaminated with dust, it will cause uneven light distribution or produce unnecessary black spots, which will affect the image quality after scanning. In order to prevent the backlight plate 116 from being attached by dust, a duster can be used: just hold the backlight plate assembly 114, and when you want to scan, hold the two pieces 114, so that you can reach the backlight plate 116 = dust and keep it dry The effect of t% plate 116 area is only 4-a small part, as long as the backlight plate} 16 user-proof mother-people must know the board assembly " ', # before and after the drawing ^ quite equivalent Λ The sleeve 118 is set in or lifted away from the backlight. [Objective and Summary of the Invention] In view of this, the objective backlight board assembly of the present invention provides a dustproof cover for the cover of the present invention, which can directly cover the backlight board; moonlight The dust cover in the board assembly is located inside the backlight board assembly. The dust cover is located after the dust cover is opened directly. The dust cover is also located on the night: the other parts are assembled separately and are not lost inside the moon board assembly. Shedding Page 5

Yu. Therefore, the dust cover of the present invention has a simple structure and a lower production cost than traditional ones. For the purpose of the month, a backlight panel set with a dust cover is provided. The backlight panel is used to scan through documents, and the backlight panel is ㈣. As; empty: light plate and dust cover ', and the backlight plate is located at the opening, ^ the light source required for type II C files. Among them, a dust cover is added to one side of the opening to cover the backlight plate.

^ Make the above-mentioned objects, features, and advantages of the present invention more obvious and easy to understand; Wen cited a preferred embodiment and cooperated with the drawings to make a detailed amount. [Detailed description of the invention]

In the present invention, a dustproof cover is specially designed in the backlight panel assembly of the scanner, and is arranged in a movable manner on one side of the opening in the backlight panel assembly to directly cover the backlight panel and replace the traditional dustproof cover to cover the entire backlight. Panel assembly to achieve the dust-proof effect of the backlight panel. The thickness of the dust cover can be as thin as 0.8 mm (mm), and the material can be polypropylene (pp), and its color is black. In addition, the dustproof of the present invention is directly installed inside the backlight panel assembly, and other parts are not assembled separately from the outside, and the opened dust cover is also housed inside the backlight panel assembly, so there is no risk of loss. Therefore, the structure of the dust cover of the present invention is simple, and the production cost is lower than the conventional dust cover. The movement and arrangement of the dust cover will be described in the first and second embodiments, respectively. Example one

V. Description of the invention (4) Mingshen ..., Figure, which shows the backlight according to the first embodiment of the present invention: Figure 2: This figure shows the circular opening 2 of the dust cover without covering the backlight. 8. Backlight board 21 ° and dust-proof reading. Backlight J = parts are arranged in the-scanner (not shown in the figure), used to guide the light source (not shown in the figure) required to trace through-type documents. , And 2 06 are linked together. ”: Back =. /-Side and open σ from the square, the Jiayue Xian 210 is located at the square opening 20 6, Ξ I: the light generated by the light source in the moon t board assembly 2 002 is substantially projected to ^ The document can be scanned only in this way, and the dust cover 212 (shown as the dashed line range in Figure 2a) is movably arranged in the backlight panel assembly 202, and can directly cover the backlight panel 21, substantially reaching The dustproof effect, among which, the penetrating document can be a negative, a slide, or a slide, and the light plate 210 can also reduce its width, and can even be the same as the negative, slide, or slide. Reduce the area of the backlight board 21 to make it suitable for scanning small documents and reduce production costs. ~ B I can't see how the dust cover 212 moves to cover the moonlight board 210 in Figure 2A, so I will use the first Figure 2β is used as a reference for illustration, and Figure 2β is drawn from the bottom view of the backlight panel according to Figure 2 A. In the middle, the inner wall of the light plate assembly 202 has a groove 213, and the groove 213 is just half-shaped. The openings 208 are all located on the same side of the square openings 206, the light board river. , The groove having a track 213 and 214a, 2Hb, branched = 216a and 216b, the dust cover 212 may be 21 "and rolled bar 21 along the track by the groove

2U slides into the square opening 20 6 to cover the backlight plate 210, and the support bars 21 6 a and 21 = can support the dust cover 212 together with the groove 213. When the scanning is completed or the scanner is turned off, the user can slide the dust cover 212 in FIG. 2B on the tracks 21 4a and 214b from the groove 213 into the square opening 206 in the direction of the arrow, as shown in FIG. 3B. This is also equivalent to sliding the dust cover 212 of the user in the direction of the arrow to the square opening 206 in the direction of the arrow, and opening the f-proof cover 212 so that the dust cover 212 covers the backlight plate 21. Of course, the area of the dust cover 212 must be larger than the area of the backlight plate 210, so as to achieve the effect of covering and dust prevention, and the dust cover 212 and the backlight plate 21 may have other geometric shapes, and are not limited to the rectangle shown in the figure. Conversely, if the scanner is to scan, the user only needs to touch the dust cover 212 in FIG. 3A with his finger, and force the dust cover 212 to move in the direction of the arrow, = the dust cover 2 12 can be slid in in FIG. 3B The groove 213 is closed without dust. The backlight board assembly 200 of the present invention can also be applied with a scanning reflective scanner. As long as scanning, first, pull out the dust cover 2 丨 2 to cover the backlight board 210, and the subsequent scanning action and Traditions are the same and will not be repeated here. In addition, the dust cover 212 of this embodiment slides through the groove 213 to achieve the open or closed state. The design of the semicircular opening 2 08 of the backlight board assembly 202 is more convenient for the user to launch the dust cover 212. . In addition, the dust cover 212 is located directly inside the backlight panel assembly 202, and other parts are not assembled separately from the outside, and the dust cover 212 after opening is also located at the backlight panel assembly 202; there is no risk of loss. Therefore, the structure of the dust cover 2 丨 2 in this embodiment is simple, and the production cost is lower than that of the conventional dust cover 丨 8 in FIG. 1.

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Embodiment 2 Please refer to FIG. 4, which shows a perspective view of a backlight panel assembly in which the dustproof cover does not cover the backlight panel according to Embodiment 2 of the present invention. Among them, FIG. 4 is different from FIG. 2A in that one of the dust cover gigs of this embodiment is connected to the light plate assembly 202, so that the dust cover 2 1 2 can be opened and closed on the backlight panel assembly 20 2 to cover the backlight board 2 1 0 to achieve the dustproof effect. The dust cover 212 has protrusions 4023 and 4021). On the one hand, when the user drives the dust cover 212 to cover the backlight plate 21 in the direction of the arrow, the protrusions 402a & 40b can be connected to the joint portions 404a and 404a of the moonlight panel assembly 202. 404b buckle to achieve the effect of close contact. On the other hand, when the user wants to use the backlight plate 21, the dust cover 212 can be lifted away from the backlight plate 21 by a notch on the edge of the dust cover 212, such as a semi-circular notch 406. It is also possible to fix the dust cover 212 to the backlight panel assembly 2 () 2 by connecting the projections 402a and 402b to the backlight panel assembly 202 with the joints 40 ° and 4004 (1). In order not to hinder the normal operation of the backlight panel 210. If the scan is completed, the user can simply lift the dust cover 212 away from the backlight panel assembly 202 by using a semi-circular cutout 406, and then continue to cover the dust cover 212. Backlight plate 21〇 [Inventive effect] The components disclosed in the above embodiments of the present invention can be moved to the inside of the panel assembly that covers the backlight panel and dust-proof, and the dust-proof cover is not located outside the backlight panel assembly. The design of the dust cover at the light plate of the scanner backlight plate with dust cover can straighten the effect, and the dust cover is directly located in the backlight line to assemble other parts, and the interior after opening has no risk of falling off. Because of this, 498680, the present invention The dust cover has a simple structure In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art will not depart from the spirit and scope of the present invention. Various modifications and retouching can be made, so the protection of the present invention is subject to the figures a and. The rail fence $ is determined by the scope of the patent application attached as follows

[Simplified description of the figure] Figure 1 shows the traditional scannable penetration exploded view. The 2A drawing of the negative film scanner of the document is a schematic top view of the backlight board assembly of the moonlight board according to the embodiment of the present invention—the dust cover is not covered. Figure 2B is a schematic bottom view of the backlight panel assembly according to Figure 2A.

FIG. 3A is a schematic plan view of the backlight panel covering the backlight panel according to the second embodiment of the backlight panel assembly of the present invention. FIG. 3B is a schematic bottom view of the backlight assembly according to FIG. 3A. ^ Figure 4 shows a perspective view of a backlight panel assembly of a backlight panel that does not cover the backlight panel according to the second embodiment of the present invention. [Description of Symbols] 102: Base 104: Flip cover 106: Pivot bolt 108: Light machine

11 0: Scanning platform 11 2: Transparency document 11 4, 2 0 2: Backlight panel assembly 115, 204: Panel 11 6, 2 1 0: Backlight panel 117, 206: Square opening

Page 11 498680 Brief description of drawings 1 1 8, 2 1 2: Dust cover 2 08: Semi-circular opening 213: Grooves 214a, 214b: Rails 216a, 216b: Support bars 402a, 402b: Projections 404a, 404b, 404c, 404d: Joint 406: Semi-circular notch

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Claims (1)

498680 6. The scope of the patent application is to scan a backlight panel assembly of a penetrating type metal fitting A dust, which is arranged in a scanner. The backlight panel assembly includes: a moonlight board, which is located at the opening. The required light source; and a method for tracing the penetrating cultural movement is arranged on one side of the opening for a dust cover to cover the backlight plate. 2. According to the backlight strain described in item 1 of the patent application scope, the backlight panel assembly further includes: a β nine-plate assembly, wherein the groove is located on the inner wall of the backlight panel assembly and adjacent to the side of the opening, and The groove χ eyepieces, bag handle plus M, bitterness and poverty all have a number of instructions on the 4th, so that the dust cover can slide into the opening from the groove along the two tracks to cover the backlight panel. The backlight panel assembly according to item 2 of the scope of patent application, wherein the opening further comprises: a square opening; a semi-circular opening located on the side of the square opening to facilitate the dust cover from the groove roll out. 4 · The backlight panel assembly as described in item 2 of the patent application scope, wherein these are two. 5. The backlight panel assembly according to item 2 of the scope of patent application, wherein the groove further includes a plurality of support bars for supporting the dust cover in the groove. 6 · The backlight panel assembly according to item 5 of the patent application scope, wherein the support bars are two. , 7. The backlight assembly as described in the first patent application, wherein the transmissive document is a negative. Item 8 · The backlight assembly as described in the first patent application scope, wherein the transmissive document is a projection film. 9. The backlight board assembly according to the first patent application scope, wherein the transmissive document is a slide. 10. The backlight board assembly according to item 1 of the scope of patent application, wherein the thickness of the dust cover is 0.8 mm (mm). 11 · The backlight panel assembly according to item 1 of the scope of patent application, wherein the material of the dust cover is polypropylene (pp). Page 14