Light guide device, and liquid crystal display module and liquid crystal display device having the same

A liquid crystal display module, comprising:

• a lamp unit for generating a light;
• a light guide plate for guiding the light from the lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off both corner portions of a first end portion of the light guide plate to which the light from the lamp unit is inputted and the width of the first end portion including the catching jaw is wider than the width of a second end portion opposite to the first end portion;
• and
• a mold frame for receiving the lamp unit and the light guide plate, in which a catching boss engaged with the catching jaw formed on both corner portions of the first end portion of the light guide plate for fixing the light guide plate is formed at a position that corresponds to the catching jaw of a bottom surface of the mold frame.

A liquid crystal display device, comprising:

• a back light assembly having a lamp unit for generating a light and a light guide plate for guiding the light from the lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off both corner portions of a first end portion of the light guide plate where the light from the lamp unit is inputted and the width of the first end portion including the catching jaw is wider than the width of a second end portion opposite to the first end portion;
• a mold frame for receiving the lamp unit and the light guide plate, in which a catching boss engaged with the catching jaw formed on both corner portions of the first end portion of the light guide plate for fixing the light guide plate is formed at a position that corresponds to the catching jaw of a bottom surface of the mold frame;
• and
• a top chassis for guiding the position of the display unit and fixing the display unit and the back light assembly to the mold frame by engaging the top chassis with the mold frame so as to be opposite to each other.

A liquid crystal display module, comprising:

• a lamp unit for generating a light;
• a light guide plate for guiding the light from the lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off both corner portions of first and second end portions which are opposite to each other and to which the light from the lamp unit is inputted and the widths of the first and second end portions including the catching jaw is wider than the width of a central portion;
• and
• a mold frame for receiving the lamp unit and the light guide plate, in which a catching boss engaged with the catching jaw formed on both corner portions of the first and second end portions of the light guide plate for fixing the light guide plate is formed at a position which corresponds to the catching jaw of a bottom surface of the mold frame.

A liquid crystal display device, comprising:

• a back light assembly having a lamp unit for generating a light and a light guide plate for guiding the light from the lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off both corner portions of first and second end portions which are opposite to each other and to which the light from the lamp unit is inputted and the widths of the first and second end portions including the catching jaw are wider than the width of a central portion;
• a mold frame for receiving the lamp unit and the light guide plate, in which a catching boss engaged with the catching jaw formed on both corner portions of the first and second end portions of the light guide plate for fixing the light guide plate is formed at a position that corresponds to the catching jaw of a bottom surface of the mold frame;
• and
• a top chassis for guiding the position of the display unit and fixing the display unit and the back light assembly to the mold frame by engaging the top chassis with the mold frame so as to be opposite to each other.

A liquid crystal display device, comprising:

• a back light assembly having a lamp unit for generating a light and a light guide plate for guiding the light from the lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off both corner portions of a first end portion where the light from the lamp unit is inputted and the width of the first end portion including the catching jaw are wider than the width of a second end portion opposite to the first end portion;
• a mold frame for receiving the lamp unit and the light guide plate, in which a catching boss engaged with the catching jaw formed on both corner portions of the first end portion of the light guide plate for fixing the light guide plate is formed at a position which corresponds to the catching jaw of a bottom surface of the mold frame, and a catching cover which covers an upper surface of both corner portions of the second end portion of the light guide plate to prevent the vertical deviation of the light guide plate is formed at the both corner portions of the second end portion;
• and
• a top chassis for guiding the position of the display unit and fixing the display unit and the back light assembly to the mold frame by engaging the top chassis with the mold frame so as to be opposite to each other.

A liquid crystal display device, comprising:

• a back light assembly having a light guide device for guiding a light from a lamp unit to a display unit for displaying an image, in which a catching jaw is formed by cutting off at least one corner portion of an end portion of the light guide device to which the light from the lamp unit is inputted and a projection portion is formed to project outwardly from a side wall of the catching jaw and elongate toward a central portion of the light guide device;
• a mold frame for receiving the lamp unit and the light guide device, in which a catching boss engaged with the catching jaw for fixing the light guide device is formed at a position that corresponds to the catching jaw of a bottom surface of the mold frame;
• and
• a top chassis for guiding the position of the display unit and fixing the display unit and the back light assembly to the mold frame by engaging with the mold frame so as to be opposite to each other.