Design method of TFT active array peripheral circuit
A technology of peripheral circuits and design methods, applied in computing, electrical digital data processing, special data processing applications, etc., can solve the problems of increasing product costs, prolonging design cycles, and wasting resources costs, so as to improve impact resistance and production. Yield, the effect of reducing processing links
Inactive Publication Date: 2010-09-22
SHANTOU GOWORLD DISPLAY (PLANT II) CO LTD
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[0004] 1. First design all the components and switch lines on the flexible circuit board. For the functional components that are not used temporarily, the installation position is reserved and the production method is not temporarily made. It can be compatible with various control circuits. The disadvantage is that it is a TFT active array. The more products the display is suitable for, the more positions need to be installed on the flexible circuit board, and the corresponding component slots will be larger, so that there is not enough space to make the component slots, and the plan needs to be modified, resulting in prolonging the design cycle. Due to the component position Many, the size of the flexible circuit board increases, which increases the product cost; or selects small-volume components with non-optimal parameters, resulting in reduced performance
The former causes the volume of the flexible circuit board to become larger, while the latter requires multiple mold openings, resulting in waste of resources and increased costs
[0007] In addition, the components on the flexible circuit board are installed in the component slots on the backlight device. Affected by the size of the component slots, it is easy to produce quality defects such as components being damaged due to extrusion, components pushing up the component slots, and the backlight device cannot be installed and fixed. Procurement of flex circuit board components can also introduce delays in the design cycle
[0008] According to the current situation, after the production of a TFT active matrix display device is completed, its completed function has been determined. To increase or change the display function, it is necessary to replace other flexible circuit boards or to modify the TFT active matrix display device. Re-mold design, TFT active matrix display device re-mold, and flexible circuit replacement, all of which increase the cost
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[0055] Further description will be given below in conjunction with the accompanying drawings and preferred embodiments of the present invention.
[0056] The design method of the TFT active matrix peripheral circuit includes the following steps:
[0057] Step 1, such as figure 1 and figure 2 As shown, when making a TFT active matrix display device, on the invalid area 2 outside the effective display area 1 of the TFT active matrix display device, functional lines such as IC drive lines, data lines, scanning lines, and detection lines are arranged. After components such as TFT devices, resistors, and storage capacitors, a blank area 3 that can be used for setting compatible control circuits is reserved.
[0058] Step 2. According to the size and shape of the blank area 3, and according to the comprehensive schematic diagram of the peripheral compatible control circuit, draw a circuit diagram on the blank area 3. The specific method is: combine the circuit principles of mult...
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The invention relates to a design method of a TFT active array peripheral circuit, which mainly comprises the following steps that: when a TFT active array display device is manufactured, a blank area is pre-reserved in an invalid area; then a route map is drawn, an element is set and a functional component is selected on the blank area according to the integrated principles of a peripheral compatible control circuit; the control functions of a plurality of control circuits are transferred to the TFT active array display device, so that after the TFT active array display device is completed, function selection can be realized by the circuit carve-off or the connection repairing of some specific parts, so as to be compatible with a plurality of control functions; a conductive layer and an insulating layer are used for making resistors, capacitors and leads equivalent, thereby omitting the purchasing of element and saving the cost; a connector only realizes the connection function, no element needs to be installed on the connector, the size is smaller and the benign production rate is improved; and no element slot needs to be manufactured on a backlight device, thereby reducing the processing link, and improving the anti-impact performance of the product.
Description
technical field [0001] The invention relates to a circuit design method, in particular to a design method for TFT active array peripheral circuits. Background technique [0002] At present, TFT active matrix display devices combined with flexible circuit board control have been widely used. In order to meet the requirement that one TFT active matrix display device is suitable for multiple products, the conventional technology is to design the control circuit on the flexible circuit board, and the TFT active matrix display device only undertakes the display function. [0003] When designing a control circuit on a flexible circuit board, there are two implementation methods: [0004] 1. First design all the components and switch lines on the flexible circuit board. For the functional components that are not used temporarily, the installation position is reserved and the production method is not temporarily made. It can be compatible with various control circuits. The disadvan...
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Inventor吴永俊王焰沈奕林钢吴利刚黄浩泓吕岳敏
OwnerSHANTOU GOWORLD DISPLAY (PLANT II) CO LTD