CN103838891A

CN103838891A - Method for achieving equal-resistance snakelike wiring in flat-panel display design

Info

Publication number: CN103838891A
Application number: CN201210486912.5A
Authority: CN
Inventors: 丁斌; 王明英; 杨祖声; 姜广侠; 李起宏; 李京; 粟林
Original assignee: Beijing CEC Huada Electronic Design Co Ltd
Current assignee: Beijing Empyrean Technology Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2014-06-04
Anticipated expiration: 2032-11-26
Also published as: CN103838891B

Abstract

The invention discloses a method for achieving equal-resistance snakelike wiring in flat-panel display design. According to the method, three wiring shape schemes, namely, rectangular snakelike wiring, trapezoidal snakelike wiring and triangular snakelike wiring, are provided according to different shapes of basic units for wiring; the basic units are rectangular, trapezoidal and triangular respectively, please see the Figure 1, the Figure 2 and the Figure 3. The wiring method is named as 'snakelike wiring' based on the fact that the wiring shape seems like a snake. By means of the method, the snakelike wiring shape can be controlled through various variable parameters, including the snakelike pattern (Pattern), the notch size (Notch), the amplitude mode (Equal Amplitude), the maximum resistance deviation between adjacent wires (Max Inter-deviation) and the maximum/minimum resistance ratio (Res. Max/Min), and the parameters guarantee the snakelike wiring shape and the snakelike wiring effect and play an important role in the method.

Description

Constant resistance wiring implementation method-snakelike wiring in a kind of flat-panel monitor design

Technical field

Snakelike wiring (Snake wiring) is the automatic wiring method of realizing constant resistance requirement in FPD (flat-panel monitor design) field.The invention belongs to self routing design field in FPD instrument.

Background technology

Self routing is the important component part of FPD design field.According to different demands, need different cabling scenarios to support, such as fixed value resistance wiring, side coiling and constant resistance wiring etc. on pel array.Its medium resistance wiring is modal a kind of distribution demand.Resistance (Resistance represents with " R " conventionally) is to use one of maximum element in all circuit.In physics, represent the size of conductor to electric current inhibition with resistance.The resistance of conductor is larger, represents that conductor is larger to the inhibition of electric current.Different conductors, resistance is generally different, and resistance is a specific character of conductor itself.At FPD design field, constant resistance, resistance difference remains in a tolerable limit in other words, can make flat circuits show good performance.

At FPD routing field, a wide cabling (Path), its resistance value is directly proportional to the length of Path, be inversely proportional to width, scale-up factor is determined by physical attributes such as square resistance rates, slightly be subject in addition the impact that resistance reduces slightly that causes that cabling turns round, quantize by turning resistivity.So under the constant prerequisite of trace width, by the different cablings less to original resistance, increasing in varying degrees its track lengths, to increase its resistance value, thereby reaching many cabling constant resistances.

Summary of the invention

The present invention discloses the wiring method-snakelike wiring that automatically realizes constant resistance wiring in a kind of panel designs.According to the difference of the shape of the basic unit body of cabling, the present invention proposes three kinds of distribution shape schemes: the snakelike wiring of rectangle, trapezoidal snakelike wiring and the snakelike wiring of triangle, its cell cube shape is respectively rectangle, trapezoidal and triangle, sees accompanying drawing 1, Fig. 2, Fig. 3.Snakelike wiring with distribution shape like snakelike and name.The present invention further supports the shape with the snakelike cabling of multiple variable parameter control, they are: maximum resistance poor (Max Inter-deviation), maximum/minimum resistance ratio (Res. Max/Min) between serpentine pattern (Pattern), groove size (Notch), amplitude pattern (Equal Amplitude), adjacent traces, these parameters have been determined shape and the effect of snakelike wiring, are important component parts of the present invention.

basic thought: resistance R is the important property of physical device, at FPD routing field, the resistance value of a wide cabling (Path) is directly proportional to the length of cabling, is inversely proportional to its width.Scale-up factor determines by physical attributes such as square resistance rates, is slightly subject in addition the impact that resistance reduces slightly that causes that cabling turns round, and this impact quantizes by turning resistivity.In most of FPD wires design, guarantee that distribution constant resistance can be that flat circuits shows better performance in batches.Even if non-snakelike wiring can not guarantee that under the wide prerequisite of each cabling track lengths equates, thereby causes resistance unequal.The ultimate principle of snakelike wiring is exactly in the situation that guaranteeing that trace width is consistent, by adding the element of the bending snakelike cell cube being wound around to increase the length of small resistor value cabling in cabling, thereby increase its resistance value, finally reach the object of each cabling constant resistance.Snakelike cell cube is divided into 3 kinds, rectangle, trapezoidal, triangle with its shape difference, refers to accompanying drawing 1, Fig. 2, Fig. 3.

In addition, can by the setting of parameter value reach regulate snakelike walk nemaline effect, its major parameter and implication are as follows:

1. serpentine pattern (Pattern): according to the difference of elementary cell shape, serpentine pattern is divided into 3 kinds, rectangle, trapezoidal, triangle, refers to accompanying drawing 1, Fig. 2, Fig. 3.

2. groove size (Notch): represent the size of basic unit body groove in short transverse.

3. amplitude pattern (Equal Amplitude): be divided into one end (Single) and two ends (Dual) two kinds of patterns, refer to respectively insert basic unit body with structure serpentine pattern at one end or the two ends of cabling.

4. maximum resistance poor (Max Inter-deviation), maximum/minimum resistance ratio (Res. Max/Min) between adjacent traces: these two Parametric Representations the degrees of tolerance to resistance difference.So-called constant resistance is not that absolute resistance equates, as long as can accomplish to allow resistance difference in certain tolerance.

Accompanying drawing explanation

The snakelike wiring design sketch of Fig. 1 rectangle

The trapezoidal snakelike wiring design sketch of Fig. 2

The snakelike wiring design sketch of Fig. 3 triangle

The snakelike wiring interface parameter of Fig. 4 arranges figure

The snakelike wiring of Fig. 5 one end amplitude and two ends amplitude pattern wiring effect comparison figure

Concrete implementation step:

Snakelike wiring is by wiring setting parameter and calls snakelike wiring application program and complete the method for constant resistance wiring.Its operating process step is as follows:

1) select tooth: the tooth of selecting two groups of constant resistance distributions to be supported.So-called tooth, treats one end or a part that wiring graph need to connect away with cabling.

2) setting parameter: set the required each parameter value of snakelike wiring, major parameter item and implication are described above.

3) preview-modification parameter-preview, so repeatedly until determine final distribution effect: call self routing application program preview distribution effect, if not good, return to previous step and remodify distribution parameter value, preview again, until finally satisfied.

4) generate distribution: call self routing application program, a key intelligence generates final constant resistance distribution scheme.

Claims

1. the constant resistance wiring implementation method-snakelike wiring in flat-panel monitor design, is mainly concerned with the process that automatically realizes constant resistance distribution in flat-panel monitor wires design with snakelike distribution scheme.Its main operating process step is as follows:

2) setting parameter: set the required each parameter value of snakelike wiring, major parameter and implication are as follows:

I. serpentine pattern (Pattern): according to the difference of elementary cell shape, serpentine pattern is divided into 3 kinds, rectangle, trapezoidal, triangle, refers to accompanying drawing 1, Fig. 2, Fig. 3.

Ii. groove size (Notch): represent the size of basic unit body groove in short transverse.

Iii. amplitude pattern (Equal Amplitude): be divided into one end (Single) and two ends (Dual) two kinds of patterns, refer to respectively insert basic unit body with structure serpentine pattern at one end or the two ends of cabling.

Iv. maximum resistance poor (Max Inter-deviation), maximum/minimum resistance ratio (Res. Max/Min) between adjacent traces: these two Parametric Representations the degrees of tolerance to resistance difference.So-called constant resistance is not that absolute resistance equates, as long as can accomplish to allow resistance difference in certain tolerance.

2. the constant resistance wiring method of realizing by snakelike wiring according to claim 1, it is characterised in that the pattern (Pattern) of 3 kinds of snakelike wirings: rectangle, trapezoidal, triangle, refer to accompanying drawing 1, Fig. 2, Fig. 3.Any algorithm and the Software tool of these 3 kinds of snakelike wiring patterns (Pattern) of any use, should obtain inventor's license.

3. the constant resistance wiring method of realizing by snakelike wiring according to claim 1, it is characterised in that these parameters are by shape and the effect of the control of snakelike wiring parameter and the snakelike wiring pattern of adjusting:

All and above each parameter or symbolical meanings actual with it is identical or thought is close wiring method or software wiring tool, should obtain inventor's license.