JP2011128557A - Liquid crystal module and bezel attaching structure of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bezel attaching structure of a liquid crystal module, capable of reducing costs and improving productivity by reducing the number of components and reducing work man-hours required for assembly. <P>SOLUTION: A resin spring 53 to deflect to the inner part of a lamp frame 5 is formed on the outer side face 52 of the lamp frame 5, and an engaging projection part 54 projected at the distal end of the resin spring 53 is fitted, inserted and engaged in an opening 10b formed on the side face 10a of a bezel 10. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a liquid crystal module and a bezel mounting structure for a liquid crystal module.

  Conventionally, in a liquid crystal television receiver, various proposals have been made regarding a bezel mounting structure of a liquid crystal module. For example, Patent Document 1 discloses a structure in which a bezel is attached to both ends of a chassis with screws. Patent Document 2 discloses a display module that locks a through-hole formed in a part of a bent portion on the outer peripheral edge of a backlight frame with a protrusion formed in a notch. Patent Document 3 discloses an image display module in which a liquid crystal display panel is accommodated by a frame case formed by joining a pair of frames having openings. Patent Document 4 discloses a technique for engaging a hook formed on a resin frame case with a liquid crystal display panel. Patent Document 5 discloses a technique for engaging a side fixing frame having an engagement element with a corresponding member of a support frame.

JP 2009-162922 A JP 2008-145808 A JP 2008-076918 A JP 2008-04-0080 A JP 2006-317555 A

  However, in the structure shown in Patent Document 1, since screws are used to attach the bezel, the number of parts increases and the cost cannot be reduced. In addition, since the number of work steps required for assembly increases, it becomes difficult to increase productivity. Even if the techniques described in Patent Document 2 to Patent Document 5 are used, the above problem cannot be solved.

  The present invention has been made in order to solve the above-mentioned problems, and the bezel of the liquid crystal module that can reduce cost and improve productivity by reducing the number of parts and the number of work steps required for assembly. An object is to provide a mounting structure.

  In order to achieve the above object, a first aspect of the present invention provides a resin lamp frame provided at opposite ends of the back side of a liquid crystal display panel to support a cold cathode tube, and the liquid crystal display panel. In a bezel mounting structure including a metal bezel that is mounted on the lamp frame from the front side and fixes the liquid crystal display panel, the outer surface of the lamp frame has flexibility inward of the lamp frame. A resin spring and an engaging convex portion that protrudes toward the outer surface of the lamp frame are formed at the tip of the resin spring, and the engaging convex portion is fitted and engaged with the side surface of the bezel. An opening is formed.

  According to a second aspect of the present invention, in the bezel mounting structure according to the first aspect, a portion of the end edge of the opening where the engagement convex portion is engaged protrudes inward from the side surface of the bezel. A diaphragm convex portion that engages with the engaging convex portion is formed.

  According to a third aspect of the present invention, in the bezel mounting structure according to the second aspect, the engagement convex portion has a slope that comes into contact with the aperture convex portion when the bezel is attached to the lamp frame. And

  The invention according to claim 4 supports the cold cathode tube that emits a backlight, a liquid crystal display panel that selectively transmits the backlight emitted from the cold cathode tube and displays an image, and the cold cathode tube. For this purpose, a resin lamp frame provided at opposite ends on the back side of the liquid crystal display panel, and a metal that is mounted on the lamp frame from the front side of the liquid crystal display panel and fixes the liquid crystal display panel. In the liquid crystal module including the bezel, a resin spring having flexibility inside the lamp frame is provided on the outer surface of the lamp frame, and a protrusion protruding from the outer surface of the lamp frame at the tip of the resin spring. A mating convex portion is formed, and an opening is formed on a side surface of the bezel so that the engaging convex portion is inserted and engaged therewith.

  According to the first aspect of the present invention, by engaging the bezel on the lamp frame while the resin spring is bent inward of the lamp frame, the engaging projection protruding from the outer surface of the lamp frame is formed on the side surface of the bezel. It is inserted and engaged with the made opening. Accordingly, the bezel can be attached to the lamp frame without using the screw described in the cited document 1, and the number of parts of the bezel attachment structure can be reduced and the number of work steps required for the assembly can be reduced.

  According to the second aspect of the present invention, the diaphragm convex portion that engages with the engaging convex portion is formed so as to protrude inward from the side surface of the bezel, so that the outer surface of the bezel is smooth without the protruding portion. can do.

  According to the invention of claim 3, since the tip of the engaging convex portion has the inclined surface that comes into contact with the aperture convex portion, the inclined surface comes into contact with the aperture convex portion when the bezel is attached to the lamp frame, and the resin The spring is bent inward of the lamp frame. Thereby, the attachment operation | work of a bezel can be made smooth and easy.

  According to the invention of claim 4, as in the case of claim 1, it is possible to reduce the number of parts of the liquid crystal module and reduce the number of work steps required for assembly.

FIG. 3 is an assembled perspective view illustrating a configuration of a liquid crystal module according to an embodiment of the present invention. The perspective view which expands and shows the structure of a lamp frame and a bezel. Sectional drawing which shows the point in which a bezel is mounted | worn with a lamp frame. Sectional drawing which shows the state by which the bezel was mounted | worn with the lamp frame.

  A liquid crystal module according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of the liquid crystal module. The liquid crystal module 1 includes a chassis 2, a reflecting plate 3, a cold cathode tube 4, a resin lamp frame 5, a light diffusing plate 6, a light diffusing sheet 7, a cell guide 8, a liquid crystal panel 9, and a metal. It is comprised by the bezels 10 and 11 etc. which were made. An exterior frame is attached to the front side of the bezels 10 and 11 as necessary.

  The chassis 2 is disposed on the back side of the liquid crystal module 1 and supports the lamp frame 5 and the like. The reflector 3 reflects light emitted backward from the cold cathode tube 4 forward. The cold cathode tube 4 irradiates light (backlight) from the back side of the liquid crystal panel 9. The pair of lamp frames 5 are mounted to face the longitudinal edge of the chassis 2 and support the cold cathode tubes 4 in the vicinity of both ends. The light diffusion plate 6 and the light diffusion sheet 7 diffuse the light emitted from the cold cathode tube 4. The pair of cell guides 8 is attached to the longitudinal edge of the chassis 2 and supports the liquid crystal panel 9. The liquid crystal panel 9 selectively transmits the light emitted from the cold cathode tube 4 and displays an image. The bezel 10 is mounted on the short edge of the liquid crystal module 1, and the bezel 11 is mounted on the long edge of the liquid crystal module 1. Between the upper end surface 51 (see FIG. 2) of the lamp frame 5 and the upper end surface of the cell guide 8. The liquid crystal panel 9 is sandwiched and supported.

  FIG. 2 shows a central portion of the lamp frame 5 and the bezel 10. On the outer surface 52 of the lamp frame 5, a flexible resin spring 53 is formed in the lamp frame 5 toward the upper side in the drawing. At the tip of the resin spring 53, an engaging convex portion 54 is formed that protrudes toward the outer surface 52 of the lamp frame 5. The engaging convex portion 54 has an inclined surface 55 that comes into contact with the diaphragm convex portion 10 c when the bezel 10 is mounted on the lamp frame 5.

  The side surface 10a of the bezel 10 is formed with an opening 10b into which the engagement convex portion 54 is fitted and engaged. Of the end edge of the opening 10b, the portion (lower end edge) to which the engagement protrusion 54 is engaged is protruded inward from the side surface 10a of the bezel 10 and engaged with the engagement protrusion 54. 10c is formed. The aperture 10b is formed by punching the bezel 10 during sheet metal processing, and the aperture projection 10c is formed by aperture.

  FIG. 3 shows a procedure for mounting the bezel 10 on the lamp frame 5, and FIG. 4 shows a state where the bezel 10 is mounted on the lamp frame 5. When the bezel 10 is mounted on the lamp frame 5, as shown in FIG. 3, the diaphragm convex portion 10 c of the bezel 10 is brought into contact with the inclined surface 55 of the engaging convex portion 54. When the bezel 10 is pushed downward in the figure from this state, the resin spring 53 is bent inward (in the direction of the arrow W) of the lamp frame 5, and the bezel 10 is rotated clockwise to engage as shown in FIG. The convex portion 54 is inserted into the opening 10 b, the lower end edge of the engaging convex portion 54 is engaged with the upper end edge of the aperture convex portion 10 c, and the bezel 10 is fixed to the lamp frame 5.

  As described above, according to the liquid crystal module 1 of the present embodiment, the bezel 10 is attached to the lamp frame 5 while the resin spring 53 is bent inward of the lamp frame 5, thereby protruding to the outer surface of the lamp frame 5. The engaged convex portion 54 is inserted into and engaged with the opening 10b formed in the side surface 10a of the bezel 10. Thereby, it is possible to attach the bezel 10 to the lamp frame 5 without using the screw described in the cited document 1, and it is possible to reduce the number of parts and the number of work steps required for assembly.

  In addition, the diaphragm convex portion 10c that engages with the engaging convex portion 54 is formed so as to protrude inward from the side surface 10a of the bezel 10, so that the outer surface of the bezel 10 is smooth without the protruding portion. Can do. Further, since the engaging convex portion 54 has the inclined surface 55 that contacts the diaphragm convex portion 10 c, the inclined surface 55 contacts the diaphragm convex portion 10 c when the bezel 10 is attached to the lamp frame 5, and the resin spring 54. Is bent inward of the lamp frame 5. Thereby, attachment work of bezel 10 can be made smooth and easy.

  The present invention is not limited to the configuration of the above-described embodiment, and at least the outer surface 52 of the lamp frame 5 is formed with a resin spring 53 that bends inward of the lamp frame 5 and protrudes from the tip of the resin spring 53. The engaging convex part 54 should just be comprised so that it may be inserted and engaged by the opening 10b formed in the side surface 10a of the bezel 10. As shown in FIG. The present invention can be modified in various ways. For example, a plurality of resin springs 53 and engaging projections 54 are formed on the lamp frame 5 and a plurality of openings 10b are formed on the bezel 10 according to the size of the liquid crystal module 1. Also good. The mounting structure can also be applied to the bezel 11.

DESCRIPTION OF SYMBOLS 1 Liquid crystal module 5 Lamp frame 9 Liquid crystal panel 10 Bezel 53 Resin spring 54 Engagement convex part 55 Slope 10b Opening 10c Diaphragm convex part

Claims (4)

In order to support the cold-cathode tube, a resin-made lamp frame provided at opposite ends on the back side of the liquid crystal display panel, and the liquid crystal display panel mounted on the lamp frame from the front side of the liquid crystal display panel In the bezel mounting structure with a metal bezel that secures
On the outer surface of the lamp frame, there is formed a resin spring having flexibility inward of the lamp frame, and an engaging convex portion protruding toward the outer surface of the lamp frame at the tip of the resin spring,
The bezel mounting structure is characterized in that the side surface of the bezel is formed with an opening into which the engaging convex portion is inserted and engaged.   Of the edge of the opening, a portion where the engaging convex portion is engaged is formed with a throttle convex portion that protrudes inward from the side surface of the bezel and engages with the engaging convex portion. The bezel mounting structure according to claim 1.   The bezel mounting structure according to claim 2, wherein the engaging convex portion has a slope that comes into contact with the iris convex portion when the bezel is attached to the lamp frame. A cold cathode tube for emitting a backlight, a liquid crystal display panel for selectively transmitting the backlight emitted from the cold cathode tube to display an image, and the liquid crystal display panel for supporting the cold cathode tube A liquid crystal display comprising: a resin lamp frame provided at opposite ends of the back side of the liquid crystal panel; and a metal bezel that is attached to the lamp frame from the front side of the liquid crystal display panel and fixes the liquid crystal display panel. In the module
On the outer surface of the lamp frame, there is formed a resin spring having flexibility inward of the lamp frame, and an engaging convex portion protruding from the outer surface of the lamp frame at the tip of the resin spring,
The liquid crystal module according to claim 1, wherein an opening is formed on the outer surface of the bezel so that the engaging convex portion is inserted and engaged therewith.

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