JP2010009820A - Display - Google Patents

Abstract

Provided is a display device in which a light source can be arranged on a frame member without generating a useless space.
The display device includes a frame member that is assembled to a display panel, and a light source for display panel illumination disposed on the frame member, and the light source is disposed on the frame member. A concave portion 3c deeper than the height h of the light source 7 is formed on the arrangement surface 5d, and the light source 7 is arranged in the concave portion 3c.
[Selection] Figure 1

Description

  The present invention relates to a display device used for a notebook or desktop personal computer, a television, or a monitor.

  In general, in an illumination-type display device, a light source (for example, a point light source) for display panel illumination is disposed on a frame member that is assembled to the display panel. In that case, conventionally, the arrangement surface of the frame member is formed flat, and the light source is arranged on the flat arrangement surface.

  Patent Document 1 is known as a prior art document related to this technique.

JP 2007-180525 A

  In the conventional display device, as described above, since the light source is arranged on the flat arrangement surface of the frame member, the light source protrudes from the arrangement surface, and the light source is arranged on the arrangement surface. There is a problem in that the unused space becomes an empty space and such a useless space is generated.

  For example, in the case of an edge light type liquid crystal display device, the light source for backlight is disposed on the flat inner surface of the frame member. For this reason, an empty space is generated between a portion where the light source is not provided on the inner side surface (arrangement surface) and the light guide plate for the backlight, and the empty space is wasted.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a display device in which a light source can be disposed on a frame member without generating a useless space.

  In order to solve the above-described problem, a first aspect of the present invention includes a frame member assembled to a display panel, and a light source for display panel illumination disposed on the frame member. A concave portion is formed on the arrangement surface on which the light source is arranged, and the light source is arranged in the concave portion.

  According to the first aspect of the present invention, the concave portion is formed on the arrangement surface of the frame member, and the light source is arranged in the concave portion. Therefore, the portion on the arrangement surface where the light source is not arranged is useless. Space can be prevented from being generated. That is, the arrangement space of the light source can be reduced, which can contribute to downsizing of the apparatus.

Embodiment 1 FIG.
The display device 1 according to this embodiment is an illumination type display device (here, an edge light type liquid crystal display device), and a frame member (for example, a resin frame) assembled to a display panel as shown in FIGS. ) 5, a backlight light source (for example, a point light source such as an LED) 7 disposed on the frame member 5, and a rectangular light guide plate 9 for the backlight disposed on the frame member 5. ing.

  The frame member 5 includes a flat plate-like substrate portion 5a and a plate-like light source arrangement portion 5b erected along the one side of the substrate portion 5a. In the light source arrangement portion 5b, a concave portion 5c is formed on the inner main surface (arrangement surface) 5d along the longitudinal direction of the main surface. The concave portion 5c is formed deeper than the height h of the light source 7, and is open at one end side of the light source arrangement portion 5b. The recess 5c may be lower than the height h of the light source 7. In addition, this recessed part 5c is formed by press work, for example.

  The light source 7 is mounted on an FPC (flexible printed circuit board) 11. The FPC 11 is formed in a size that can be placed on the bottom surface of the recess 5c of the light source placement portion 5b. The light source 7 is disposed in the recess 5c of the light source disposition portion 5b in a state of being mounted on the FPC 11. In this arrangement state, the upper end surface 7a of the light source 7 is located at a height equal to or lower than the arrangement surface 5d of the light source arrangement portion 5b.

  The light guide plate 9 is disposed on the frame member 5 so that one end surface (light incident surface) 9 b of the light guide plate 9 faces the light source 7. Further, an optical sheet (not shown) such as a reflection sheet for reflecting light emitted from the back surface 9a of the light guide plate 9 is disposed on the back surface 9a side of the light guide plate 9 or the inner surface 5e of the substrate portion 5a of the frame member 5. Has been.

  The display panel (here, a liquid crystal panel) is disposed on the front surface 9 c side of the light guide plate 9. And in the arrangement state, the display panel, the light guide plate 9 and the frame member 5 are sandwiched from the front and the back by another frame member (for example, a metal frame: not shown), thereby the display panel, the light guide plate 9 and the frame member. 5 are assembled together.

  According to the display device 1 configured as described above, the concave portion 5c is formed on the arrangement surface 5d of the frame member 5, and the light source 7 is arranged in the concave portion 5c. Therefore, the light source 7 on the arrangement surface 5d. It is possible to prevent a useless space from being generated in a portion where no is provided. That is, the arrangement space of the light source 7 can be reduced, which can contribute to downsizing of the display device. Further, by making the recess 5c deeper than the height of the light source 7, it is possible to further contribute to miniaturization of the display device.

  In this embodiment, the number, shape, depth, size and position of the recesses 3c may be changed as appropriate.

Embodiment 2. FIG.
As shown in FIGS. 3 and 4, the display device 1 </ b> B according to this embodiment further includes a protrusion 5 f that positions the FPC 11 on the bottom surface of the recess 5 c of the frame member 5 in the first embodiment.

  In this embodiment, the FPC 11 is formed with an engagement hole 11a with which a protrusion 5f formed in the recess 5c of the frame member 5 is engaged. That is, the protrusion 5f of the recess 5c of the frame member 5 is pushed into the engagement hole 11a of the FPC 11, and the FPC 11 is simply placed in the recess 5c of the frame member 5, so that the protrusion 5f is engaged with the engagement hole 11a. Thus, the FPC 11 is positioned and fixed in the recess 5c.

  According to the display device 1B configured as described above, since the protrusion 5f is formed on the bottom surface of the recess 5c of the frame member 5 and the engagement hole 11a is formed in the FPC 11, the protrusion 5f is formed in the engagement hole 11a. The FPC 11 can be positioned and fixed in the recess 5c simply by pushing it in (that is, simply).

  In this embodiment, the number, shape, depth, size and position of the protrusions 11a may be changed as appropriate.

Embodiment 3 FIG.
As shown in FIG. 5, the display device 1 </ b> C according to this embodiment further includes one end surface of the light guide plate 9 on the flat portion other than the recess 3 c in the arrangement surface 5 of the frame member 5 in the first or second embodiment. (Light incident surface) By contacting 9b, the flat portion 5g of the arrangement surface 5d is used as a positioning member for positioning the light guide plate 9 (a member for determining the position in the direction facing the light source 7). Is.

  According to the display device 1 </ b> C configured as described above, the flat portion 5 g other than the recess 5 c in the arrangement surface 5 d of the frame member 5 is used as the positioning member for the light guide plate 9. There is no need to prepare a separate member, and the structure can be simplified.

Embodiment 4 FIG.
As shown in FIG. 6, the display device 1 </ b> D according to this embodiment is further provided with a reflective material (for example, a reflective sheet) 13 on the flat portion 5 g of the arrangement surface 5 d of the frame member 5 in the third embodiment. The one end face 9b of the light guide plate 9 is brought into contact with the flat portion 5g through the reflecting material 13. The reflector 13 is for effectively propagating light from the light source 7 to the front of the light source 7 (above the paper surface).

  According to the display device 1D configured as described above, the light from the light source 7 can be effectively transmitted to the front of the light source.

  Note that the type, number, position, size, and the like of the reflective material 13 may be changed as appropriate.

2 is a schematic configuration diagram of a side view of the display device according to Embodiment 1. FIG. FIG. 2 is a schematic configuration diagram of the display device according to Embodiment 1 viewed from an oblique direction. 6 is a plan view of a light source arrangement portion of a frame member of a display device according to Embodiment 2. FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV of the light source arrangement portion of the frame member of the display device according to the second embodiment. FIG. 10 is a schematic configuration diagram in a side view of a display device according to a third embodiment. FIG. 6 is a schematic configuration diagram in a side view of a display device according to a fourth embodiment.

Explanation of symbols

  1, 1B, 1C, 1D Display device, 5 frame member, 5a substrate portion, 5b light source placement portion, 5c recess, 5d placement surface, 5e inner surface, 5f protrusion, 5g flat portion, 7 light source, 7a upper end surface of light source , 9 Light guide plate, 9a rear surface, 9b one end surface (light incident surface), 9c front surface, 11 FPC, 11a engagement hole, 13 reflector, h height of the light source.

Claims (4)

A frame member assembled to the display panel;
A light source for display panel illumination disposed on the frame member;
With
The display device according to claim 1, wherein a concave portion is formed on an arrangement surface of the frame member where the light source is arranged, and the light source is arranged in the concave portion. In the case where the light source is disposed in the recess of the frame member in a state mounted on a flexible substrate,
On the bottom surface of the recess, a protrusion for positioning the flexible substrate is formed,
The display device according to claim 1, wherein an engagement hole that engages with the protrusion is formed in the flexible substrate. The recess is formed deeper than the height of the light source,
A light guide plate for guiding the light of the light source;
The light guide plate is disposed in a state in which a light incident surface on one end side thereof is in contact with a portion of the arrangement surface of the frame member where the concave portion is not formed. The display device according to 1.   The display device according to claim 1, wherein a reflective material is disposed in a portion of the disposition surface of the frame member where the concave portion is not formed.

Images