WOA panel architecture
The present invention provides solutions to simplify and reduce the resources needed for manufacturing liquid crystal display modules. Failure of mid-process steps during mass production can result in significant costs. According to certain embodiments of the present invention, a WOA display panel architecture requires fewer LCM resources or has no PCB. Although the COG process and WOA method provide higher reliability in temporary LCD production, the costs associated with the space required for wires on the PCB or display panel for larger panel sizes remains expensive. Larger panel sizes also requires an increased number of driver ICs to construct a flat display panel. Similarly, the number of wires connecting each driver IC to a timing controller IC, gamma operational amplifier IC and DC-to-DC converter IC creates spacing problems that translate into higher production costs. These problems can be solved by certain embodiments of the present invention.
1 . A wiring on array (WOA) panel architecture, comprising:
a display panel;
a plurality of source driver integrated circuits (ICs) mounted on the display panel;
a first integrated chip mounted on the display panel, performing the functions of source driver and timing controller and providing first control and data signals to at least one of the source driver ICs;
a printed circuit board (PCB);
a flexible printed circuit board (FPC) connecting the display panel to the PCB; and
a DC-to-DC converter IC mounted on the PCB providing power to the source driver ICs and the first integrated chip through the FPC.
2 . The WOA panel architecture of claim 1 , further comprising:
a second integrated chip mounted on the display panel, performing the functions of source driver and timing controller, and providing second control and data signals to at least one of the source driver ICs, wherein the first and the second integrated chips receive third control and data signals through the FPC.
3 . The WOA panel architecture of claim 2 , further comprising:
a gamma operational amplifier IC mounted on the PCB providing gamma reference voltage signals to the source driver ICs and to the first integrated chip through the FPC.
4 . The WOA panel architecture of claim 1 , wherein each of the source driver ICs further integrates a timing controller IC.
5 . The WOA panel architecture of claim 4 , further comprising:
a second integrated chip mounted on the display panel, performing the functions of source driver and timing controller, providing second control and data signals to at least one of the source driver ICs, wherein the first and the second integrated chips receive third control and data signals through the FPC.
6 . The WOA panel architecture of claim 5 , further comprising:
a gamma operational amplifier IC mounted on the PCB providing gamma reference voltage signals to the source driver ICs and to the first integrated chip through the FPC.
7 . The WOA panel architecture of claim 4 , wherein the first integrated chip and each of the source driver ICs integrates a gamma operational amplifier IC.
8 . The WOA panel architecture of claim 7 , further comprising:
a second integrated chip mounted on the display panel, performing the functions of source driver, timing controller and gamma operational amplifier, providing second control and data signals to at least one of the source driver ICs, wherein the first and the second integrated chips receive third control and data signals through the FPC.
9 . A wiring on array (WOA) panel architecture, comprising:
a display panel;
a plurality of source driver integrated circuits (ICs) mounted on the display panel;
a first integrated chip mounted on the display panel, performing the functions of source driver, timing controller, gamma operational amplifier, and DC-to-DC converter, and providing first control and data signals and power to at least one of the source driver ICs;
a printed circuit board (PCB); and
a flexible printed circuit board (FPC) coupled to the display panel to transmit second control and data signals to the integrated chip.
10 . The WOA panel architecture of claim 9 , wherein each of the source driver ICs integrates a gamma operational amplifier IC, a timing controller IC, and a DC-to-DC converter IC.
11 . The WOA panel architecture of claim 10 , further comprising:
a second integrated chip mounted on the display panel, performing the functions of source driver, timing controller, gamma operational amplifier and DC-to-DC converter, and providing third control and data signals and power to at least one of the source driver ICs, wherein the first and the second integrated chips receive the second control and data signals through the FPC.
12 . A wiring on array (WOA) panel architecture, comprising:
a display panel;
a flexible printed circuit board (FPC) coupled to the display panel;
a plurality of source driver integrated circuits (ICs) mounted on the display panel;
a timing controller IC mounted on the display panel receiving first control and data signals through the FPC and providing second control and data signals to at least one of the source driver ICs;
a DC-to-DC converter IC providing power to the source driver ICs; and
a gamma operational amplifier IC providing gamma reference voltage signals to the source driver ICs.
13 . The WOA panel architecture of claim 10 , wherein the DC-to-DC converter IC is mounted on a printed circuit board (PCB).
14 . The WOA panel architecture of claim 10 , wherein the DC-to-DC converter IC and the gamma operational amplifier IC are mounted on the display panel.
15 . A wiring on array (WOA) panel architecture, comprising:
a display panel;
a plurality of source driver integrated circuits (ICs) mounted on the display panel, wherein each of the source driver ICs integrates a timing controller IC, a gamma operational amplifier IC, and a DC-to-DC converter IC;
a first integrated chip mounted on the display panel, performing the functions of source driver, timing controller, gamma operational amplifier, and DC-to-DC converter, and providing first control and data signals and power to at least one of the source driver ICs;
a flexible printed circuit board (FPC) coupled to the display panel to transmit second control and data signals to the first integrated chip.
16 . The WOA panel architecture of claim 15 , further comprising:
a second integrated chip mounted on the display panel, performing the functions of source driver, timing controller, gamma operational amplifier, and DC-to-DC converter, and providing third control and data signals and power to at least one of the source driver ICs, wherein the first and the second integrated chips receive the second control and data signals through the FPC.