Liquid crystal display device

Abstract

In a liquid crystal display device, a support member for supporting a liquid crystal display panel and a reflection member are fixed to a lower frame with screws at different positions respectively thus preventing the deformation of the lower frame of the liquid crystal display device. A liquid crystal display device includes a liquid crystal display panel; a support member which supports an outer peripheral portion of the liquid crystal display panel; a light source and a reflection member which are arranged in a region which is overlapped to a display screen of the liquid crystal display panel; and a frame member which is arranged behind the light source as viewed from the liquid crystal display panel. In such a constitution, the frame member includes a folded portion which is folded toward the liquid crystal display panel side outside a display region of the liquid crystal display panel. The support member is fixed to the frame member with screws in a region between an outer periphery of the first frame member and the folded portion. The reflection member is fixed to the frame member in a region inside the folded portion of the first frame member and a region outside the folded portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic plan view showing the schematic constitution of a liquid crystal display device of one embodiment according to the present invention;

FIG. 2 is an enlarged plan view of a region AR1 in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along a line A-A′ in FIG. 2;

FIG. 4 is a cross-sectional view taken along a line B-B′ in FIG. 2;

FIG. 5 is a schematic cross-sectional view for explaining the manner of operation of the liquid crystal display device of this embodiment;

FIG. 6 is a schematic plan view for explaining a first modification of the liquid crystal display device of this embodiment;

FIG. 7 is a schematic plan view for explaining a second modification of the liquid crystal display device of this embodiment;

FIG. 8 is a schematic cross-sectional view for explaining an example to which the liquid crystal display device of the embodiment is applied;

FIG. 9 is a cross-sectional view taken along a line C-C′ in FIG. 8;

FIG. 10 is a schematic cross-sectional view showing one constitutional example of a conventional liquid crystal display device using side molds; and

FIG. 11 is a schematic view for explaining drawbacks of the liquid crystal display device shown in FIG. 10.

Claims

1. A liquid crystal display device comprising: a liquid crystal display panel;a support member which supports an outer peripheral portion of the liquid crystal display panel;a light source and a reflection member which are arranged in a region which is overlapped to a display screen of the liquid crystal display panel in a plan view;a first frame member which is arranged behind the light source as viewed from the liquid crystal display panel; anda second frame member which supports the outer peripheral portion of the liquid crystal display panel together with the support member, whereinthe first frame member includes a folded portion which is folded toward the liquid crystal display panel side outside a region which is overlapped to a display region of the liquid crystal display panel in a plan view,the support member is fixed to the first frame member with screws in a region between an outer periphery of the first frame member and the folded portion, andthe reflection member is fixed to the frame member with screws in a region inside the folded portion of the first frame member and a region outside the folded portion.

2. A liquid crystal display device according to claim 1, wherein the first frame member includes another folded portion between the outer periphery and the folded portion, and includes a region which extends in the direction substantially parallel to the display screen of the liquid crystal display panel between the outer periphery and another folded portion, and the support member and the reflection member are fixed to the frame member with screws in the region which extends in the direction substantially parallel to the display screen of the liquid crystal display panel between the outer periphery and another folded portion of the first frame member.

3. A liquid crystal display device according to claim 2, wherein the reflection member includes a portion which is interposed between the support member and the region between the outer periphery and another folded portion of the first frame member, and the support member is fixed to the first frame member with screws at a portion where the portion of the reflection member is interposed.

4. A liquid crystal display device according to claim 1, wherein the reflection member is constituted of one or a plurality of members which are arranged annularly on an outer peripheral portion of the first frame member.

5. A liquid crystal display device according to claim 1, wherein the first frame member passes through the folded portion and extends to a region inside the folded portion from a region outside the folded portion, and a projecting portion or a groove portion is formed in a projecting manner or in a recessed manner on a surface of the first frame member opposite to a surface of the first frame member which faces the liquid crystal display panel.

6. A liquid crystal display device according to claim 5, wherein the projecting portions or the groove portions has a length of a portion thereof inside the folded portion set larger than a length of a portion thereof outside the folded portion.