US 2008/0165483 A1 · DISPLAY DEVICE

Abstract

The present invention provides a display device of high quality by suppressing heating of a semiconductor chip mounted on a flexible board connected to an insulation substrate of a display device and by suppressing irregularities of a voltage supplied to the semiconductor chip. A heat radiation pattern is formed on a flexible board which is connected to the insulation substrate of the display device and mounts a semiconductor chip thereon. By connecting heat radiation bumps of the semiconductor chip and the heat radiation pattern, heat generated from the semiconductor chip is dissipated by the heat radiation pattern. Further, by supplying a predetermined voltage to the semiconductor chip via the heat radiation pattern and the heat radiation bumps, the irregularities of an input voltage to the semiconductor chip can be also suppressed.

Claims20

Dependent claims

A display device comprising:

an insulation substrate;
a flexible board which is connected to the insulation substrate;
and
a semiconductor chip which is mounted on the flexible board, wherein
the semiconductor chip includes a first long side and a second long side,
first bumps are formed on the semiconductor chip along the first long side and second bumps are formed on the semiconductor chip along the second long side,
the first bumps and the second bumps are connected to a plurality of lines formed on the flexible board, and
a pattern formed of a metal layer formed on the same layer as the plurality of lines is formed on the flexible board between the first bumps and the second bumps.

5 more elements

Dependencies are inferred from the claim text.

Display device

Life of this patent

Display device

Life of this patent

Abstract

Claims20