COF design oled module

1, according to the actual chip data and modules required to draw schematics COF.
2, draw the outline drawing COF 5.7 TFT display module
According to the design requirements of the entire module to draw the outline drawing COF, and then draw an electrode contact portion with the LCD, under normal circumstances, the use of the number of driving COM + SEG number, plus one or both sides of the electrodes on the bit, that is the total number of electrodes N, if the electrode pitch is P, then the distance between the outermost two electrodes L1 = P1 × (N1-1). The width of the portion in contact with the LCD under normal circumstances is W1 ≥ L1 +2 mm, Figure 4 shows the COF module and the control interface of the CPU, the way the interface is used in the painting with reinforced pull type, if the number of electrodes is N2, pitch is P2, the outermost two electrodes from the L2 = P2 × (N2-1), the entire interface width W2 = P2 × (N2 +1) ± 0.1mm, if a double-contact type, the spacing of the electrode is relatively large, in general, not less than 0.6mm, 0.8mm is generally preferred spacing.
3, draw the chip pads figure, the chip pads map is very important, the general information in the chip are each pad to position the table, according to the pad position table, one by one, drawn, future chip bonding , the chip pad bumps to the graphics correspond to the FPC.
4, component placement, in accordance with the overall requirements of the module, the chip pads chart, other components pads placed to chart a reasonable figure, the process in place, we should follow the following principles: First, to guarantee off-line especially LCD driver IC and the upper part of the connection more; two components to be placed is reasonable, to avoid double-sided alignment.
5, take the line, this is a key part of the design, not only to the schematic line to go through, but also to ensure a good display effect, you need to go to a reasonable line, near-line can go a little thin, far away The line is to be a little rough, like driver SEG lines, usually in the middle of the relatively short walk away, you can fine point, while driving the COM line generally on both sides, we must appropriately thicker. In addition, the power supply and control lines go even a little rough, or even mention a band with two wire line. Here the COF inner lead and the external lead criteria: TFT LCD Display
6, the coating requirements
7, check the design, according to the customer's requirements and the methods used to check whether the design to achieve the customer's goals.