Liquid crystal display device

A liquid crystal display device, comprising:

• a liquid crystal display panel having, a pair of substrates arranged to oppose each other, a liquid crystal layer interposed between the pair of substrates, a plurality of pixels being formed along the liquid crystal layer;
• a plurality of driving circuits for supplying signals to the pixels and being juxtaposed along one of edges of the liquid crystal display panel, the plurality of driving circuits being arranged adjacent one another and divided into a plurality of driving circuits groups having plural driving circuits along the one of the edges of the liquid crystal panel;
• a printed circuit board having a control circuit mounted thereon which controls the plurality of driving circuits;
• and
• a flexible wiring board, which is arranged to extend along a direction in which the plurality of driving circuits are juxtaposed, consisting of a plurality of sections thereof provided in correspondence with the driving circuits groups and arranged in an extension direction thereof, each of the sections having a connecting portion to be connected to the printed circuit board, and having protruded portions thereof protruded toward the one of the edges of the liquid crystal display panel in correspondence with the respective driving circuits belonging to the one of the driving circuit groups and having respective ends mounted on one of the pair of substrates at the one of the edges of the liquid crystal display panel, the protruded portions being spaced from each other at the ends thereof, wherein
• a flexible wiring board receives a control signal from the control circuit through one of the connecting portions of the sections thereof,
• each of the protruded portions corresponds to one of the driving circuits has at least one signal path for the control signal to be connected to an input side of the driving circuit corresponding thereto,
• each region of the flexible wiring board between each pair of the sections which are adjacent to one another along the extension direction thereof is narrower than the rest thereof, and
• the control signal is inputted to each of the plurality of driving circuits sequentially along the one of the edges of the liquid crystal display panel and is transferred through each region between the sections of the flexible wiring board.

A display device comprising:

• a first substrate comprising video signal lines for supplying a video signal to pixels, and scanning signal lines for supplying a scanning signal to the pixels;
• a first board comprising a control circuit;
• a plurality of driving circuits comprising a plurality of first driving circuits and a plurality of second driving circuits, each of the first and second driving circuits supplying the video signal to the video signal lines;
• a plurality of scanning signal line driving circuits supplying the scanning signal to the scanning signal line;
• a second board for supplying an output from the control circuit to the plurality of first driving circuits, the second board being arranged between the first substrate and the first board;
• a third board for supplying an output from the control circuit to the plurality of second driving circuits, the third board being arranged between the first substrate and the first board;
• wherein each pixel comprises a pixel electrode and a thin film transistor for controlling application of the video signal to the pixel electrode by the scanning signal;
• wherein the output from the control circuit is supplied from a first area on the first board to a third area on the second board;
• wherein the output from the control circuit is supplied from a second area on the first board to a fourth area on the third board;
• wherein the third area is arranged adjacent one side of the second board, and the one side of the second board is arranged adjacent to the third board;
• wherein the fourth area is arranged adjacent one side of the third board, and the one side of the third board is arranged adjacent to the second board;
• wherein the first area on the first board overlaps with the third area on the second board;
• wherein the second area on the first board overlaps with the fourth area on the third board;
• wherein the output from the control circuit to the plurality of the first driving circuits is supplied through the second board independently of the third board;
• wherein the output from the control circuit to the plurality of the second driving circuits is supplied through the third board independently of the second board;
• and
• wherein the output from the control circuit to the plurality of the scanning signal line driving circuits is supplied through the first board.

A display device comprising:

• a first substrate comprising video signal lines for supplying the video signal for pixels, and scanning signal lines for supplying a scanning signal for pixels;
• a first board comprising a control circuit;
• a plurality of driving circuits comprising a plurality of left driving circuits and a plurality of right driving circuits, each of left and right driving circuits being arranged horizontally, each of the driving circuits supplying the video signal to the video signal lines;
• a plurality of scanning signal line driving circuits supplying the scanning signal to the scanning signal lines;
• a second board for supplying an output from the control circuit to the plurality of left driving circuits, the second board being arranged between the first substrate and the first board;
• a third board for supplying an output from the control circuit to the plurality of right driving circuits, the third board being arranged between the first substrate and the first board;
• wherein each pixel comprises a pixel electrode, and a thin film transistor for controlling application of the video image signal to the pixel electrode by the scanning signal;
• wherein the output from the control circuit is supplied from a first area on the first board to a third area on the second board;
• wherein the output from the control circuit is supplied from a second area on the first board to a fourth area on the third board;
• wherein the third area is arranged adjacent one side of the second board, and the one side of the second board is arranged adjacent to the third board;
• wherein the fourth area is arranged adjacent one side of the third board, the one side of the third board is arranged adjacent to the second board;
• wherein the first area on the first board overlaps with the third area on the second board;
• wherein the second area on the first board overlaps with to the fourth area on the third board;
• wherein the output from the control circuit to the plurality of left driving circuits is supplied through the second board independently of the third board;
• wherein the output from the control circuit to the plurality of right driving circuits is supplied through the third board independent of the second board;
• wherein the control circuit is arranged to overlap with the first area and the second area on the first board;
• and
• wherein the output from the control circuit to the plurality of the scanning signal line driving circuits is supplied through the first board.