Mounting frame combination structure of liquid crystal display device

1. A structure comprising:

a main support that accommodates a LCD panel and a backlight provided to a rear of the LCD panel;

a sash provided above the main support that retains the LCD panel and the main support from a front side, the sash having a step-difference portion offset parallel to a plane; and

a mounting frame having side portions that oppose each other and positioned in the step-difference portion such that a width of the side portions is greater than a width of an offset of the step-difference portion with respect to a side of the sash, the mounting frame being fastened to the main support.

2. The structure of claim 1 , wherein a volume bounded by the mounting frame and a bottom cover is dimensioned for accommodating an additional component.

3. The structure of claim 2 , wherein the additional component comprises a circuit board.

4. The structure of claim 1 , wherein holes are provided in the mounting frame, the step-difference portion of the sash and the main support.

5. The structure of claim 4 , wherein a screw thread is provided in an inner surface of the hole in the main support.

6. The structure of claim 5 , wherein the fastener comprises a screw.

7. The structure of claim 1 , wherein a fastener is provided in one of a side portion of the main support and the side portion of the mounting frame and, engaging portions are provided in the sash and at least one of the mounting frame and the main support.

8. The structure of claim 7 where the fastener comprises a hook.

9. The structure of claim 7 , wherein the engaging portions comprise holes.

10. A LCD device comprising:

a main support accommodating a LCD panel and a backlight provided to a rear of the LCD panel and a mounting frame having side portions that oppose each other and positioned in a step-difference portion;

a front side retaining means for retaining a front side of the LCD panel and a front side of main support, the front side retaining means having a step-difference portion offset parallel to a plane of the front side retaining means, wherein the front side retaining means is provided above the main support; and means for combining the front side LCD retaining means, the main support and the mounting frame,

wherein the side portions of the mounting frame are positioned in the step-difference portion such that a width of the side portions is greater than a width of the offset of the step-difference portion with respect to a side of the front side retaining means.

11. A method of reducing a width of a structure for mounting a LCD display comprising:

supporting a LCD panel and a backlight with a main support;

retaining the LCD panel from a front side using a sash that is provided above the main support that retains the LCD panel and the main support from a front side;

forming a step-difference portion of the sash parallel to a plane of the sash;

providing a mounting frame comprising side portions forming to the step difference portion:

positioning the side portion of the mounting frame outside the step-difference portion of the sash such that the side portion of the mounting frame formed as an outer member, wherein the side portions oppose each other and face a surface of the step-difference portion; and

combining the sash and a the mounting frame with fasteners selected from the group consisting of screw, a thread, a nut and bolt, a rivet, and adhesive, wherein the forming the step-difference portion comprises offsetting the step-difference portion with respect to the side of the sash such that a width of the side portions is greater than a width of the offset of the step-difference portion with respect to a side of the sash.