# US 8,570,480 B2 · Display device having slim border-area architecture and driving method thereof

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- Number: US 8,570,480 B2
- Document ID: US8570480B2
- Status: Granted
- Kind: B2
- Application number: 12/410,475
- Filed: 2009-03-25
- Published: 2010-07-08
- Granted: 2013-10-29
- Earliest claimed: 2009-01-08
- Assignees: Au Optronics Corporation
- Applicants: Yi-Chen Chiang; Chih-Hung Shih; Maw-Song Chen; Tzu-Wei Ho; Ching-Huan Lin; Yu-Hsuan Li; Yao-Jen Hsieh; Ya-Ting Hsu; Chi-Mao Hung; Ken-Ming Chen; Yu-Cheng Chen
- Inventors: Yi-Chen Chiang; Chih-Hung Shih; Maw-Song Chen; Tzu-Wei Ho; Ching-Huan Lin; Yu-Hsuan Li; Yao-Jen Hsieh; Ya-Ting Hsu; Chi-Mao Hung; Ken-Ming Chen; Yu-Cheng Chen
- Web page: https://patentgrep.com/patent/US8570480B2

## CPC

- G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)}
- G02F 1/1345: Conductors connecting electrodes to cell terminals
- G09G 3/3666: {with the matrix divided into sections}
- G09G 3/3677: {suitable for active matrices only}
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2310/0232: Special driving of display border areas
- G09G 2310/0278: Details of driving circuits arranged to drive both scan and data electrodes
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A display device having slim border-area architecture is disclosed. The display device includes a substrate, a plurality of data lines, a plurality of gate lines, a plurality of auxiliary gate lines and a driving module. The substrate includes a display area and a border area. The data lines, the gate lines and the auxiliary gate lines are disposed in the display area. The driving module is disposed in the border area. The gate lines are crossed with the data lines perpendicularly. The auxiliary gate lines are parallel with the data lines. Each auxiliary gate line is electrically connected to one corresponding gate line. The data and auxiliary gate lines are electrically connected to the driving module based on an interlace arrangement. Further disclosed is a driving method for delivering gate signals provided by the driving module to the gate lines via the auxiliary gate lines.

## Claims

### Claim 1

A display device, comprising:
a substrate having a display area and a border area, the border area being substantially surrounding the display area;
a plurality of data lines disposed in the display area of the substrate;
a plurality of gate lines disposed in the display area of the substrate and substantially crossed with the data lines perpendicularly, the plurality of gate lines comprising a first set of gate lines and a second set of gate lines;
a plurality of first auxiliary gate lines disposed in the display area of the substrate, the first auxiliary gate lines being substantially parallel with the data lines, each first auxiliary gate line being electrically connected to a corresponding gate line of the first set of gate lines;
a plurality of second auxiliary gate lines disposed in the border area of the substrate, each second auxiliary gate line being electrically connected to a corresponding gate line of the second set of gate lines;
a driving module disposed in the border area of the substrate, the driving module being electrically connected to the data lines, the second auxiliary gate lines, and the first auxiliary gate lines;
a plurality of pixel units disposed in the display area of the substrate;
a plurality of common lines electrically coupled with the pixel units;
an insulation layer disposed in the border area, the second auxiliary gate lines being covered with the insulation layer; and
an adjust layer disposed in the border area to overlap at least one of the second auxiliary gate lines, at least a portion of the insulation layer being covered with the adjust layer, wherein a first couple capacitor is formed between the at least one of the second auxiliary gate lines and the adjust layer;
wherein the adjust layer is electrically connected to the common lines wherein each first auxiliary gate line and the adjust layer are not overlapped, each first auxiliary gate line is not electrically connected to the second set of gate lines, and a second couple capacitor is formed between at least one of the second set of gate lines and at least one of the first auxiliary gate lines.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the driving module comprises at least one driver for providing a plurality of data signals to the data lines and for providing a plurality of gate signals to the first auxiliary gate lines.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the driving module comprises:
at least one source driver, electrically connected to the data lines, for providing a plurality of data signals to the data lines; and
at least one gate driver, electrically connected to the first auxiliary gate lines, for providing a plurality of gate signals to the first auxiliary gate lines.

### Claim 4 (depends on 1)

The display device of claim 1, wherein the first auxiliary gate lines and the data lines interleave each other.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the driving module comprises a plurality of output ports, the data lines and the first auxiliary gate lines interleaving each other and being electrically connected to the corresponding output ports.

### Claim 6 (depends on 1)

The display device of claim 1, wherein the second auxiliary gate lines are a plurality of conductive lines formed in a same layer.

### Claim 7 (depends on 1)

The display device of claim 1, wherein the second auxiliary gate lines are a plurality of conductive lines interleaving one another and formed in at least two different layers.

### Claim 8 (depends on 1)

The display device of claim 1, wherein the adjust layer forms a stair-like distribution and covers the second auxiliary gate lines.

### Claim 9 (depends on 1)

The display device of claim 1, wherein the adjust layer has a plurality of opens, each open being positioned on top of a corresponding second auxiliary gate line.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the driving module comprises:
a plurality of data output ports, each data output port being electrically connected to a corresponding data line;
a plurality of first output ports, each first output port being electrically connected a corresponding first auxiliary gate line, wherein the first output ports and the data output ports interleaving each other; and
a plurality of second output ports, each second output port being electrically connected to a corresponding second auxiliary gate line.

### Claim 11 (depends on 10)

The display device of claim 10, wherein the second auxiliary gate lines are electrically connected to the second output ports sequentially along a first direction or along a second direction opposite to the first direction.

### Claim 12 (depends on 1)

The display device of claim 1, wherein the border area has a first area and a second area, the gate lines comprise a first set of gate lines and a second set of gate lines, each first auxiliary gate line being electrically connected to a corresponding gate line of the first set of gate lines, and wherein the display device further comprises:
a plurality of second auxiliary gate lines disposed in the first area, each second auxiliary gate line being electrically connected between an odd gate line of the second set of gate lines and the driving module; and
a plurality of third auxiliary gate lines disposed in the second area, each third auxiliary gate line being electrically connected between an even gate line of the second set of gate lines and the driving module.

### Claim 13 (depends on 1)

The display device of claim 1, wherein the border area has a first area and a second area, the gate lines comprises a first set of gate lines, a second set of gate lines and a third set of gate lines, each first auxiliary gate line being electrically connected to a corresponding gate line of the first set of gate lines, and wherein the display device further comprises:
a plurality of second auxiliary gate lines disposed in the first area, each second auxiliary gate line being electrically connected between a corresponding gate line of the second set of gate lines and the driving module; and
a plurality of third auxiliary gate lines disposed in the second area, each third auxiliary gate line being electrically connected between a corresponding gate line of the third set of gate lines and the driving module.

### Claim 14 (depends on 13)

The display device of claim 13, wherein the driving module comprises:
a plurality of data output ports, each data output port being electrically connected to a corresponding data line;
a plurality of first output ports, each first output port being electrically connected a corresponding first auxiliary gate line, wherein the first output ports and the data output ports interleave each other;
a plurality of second output ports, each second output port being electrically connected to a corresponding second auxiliary gate line; and
a plurality of third output ports, each third output port being electrically connected to a corresponding third auxiliary gate line.

### Claim 15 (depends on 13)

The display device of claim 13, wherein each second auxiliary gate line is electrically connected to an odd gate line of the second set of gate lines, each third auxiliary gate line is electrically connected to an odd gate line of the third set of gate lines, and wherein the display device further comprises:
a plurality of fourth auxiliary gate lines disposed in the second area, each fourth auxiliary gate line being electrically connected between an even gate line of the second set of gate lines and the driving module; and
a plurality of fifth auxiliary gate lines disposed in the first area, each fifth auxiliary gate line being electrically connected between an even gate line of the third set of gate lines and the driving module.

### Claim 16 (depends on 13)

The display device of claim 13, wherein each second auxiliary gate line is electrically connected to an odd gate line of the second set of gate lines, each third auxiliary gate line is electrically connected to an even gate line of the third set of gate lines, and wherein the display device further comprises:
a plurality of fourth auxiliary gate lines disposed in the second area, each fourth auxiliary gate line being electrically connected between an even gate line of the second set of gate lines and the driving module; and
a plurality of fifth auxiliary gate lines disposed in the first area, each fifth auxiliary gate line being electrically connected between an odd gate line of the third set of gate lines and the driving module.

### Claim 17 (depends on 1)

The display device of claim 1, further comprising:
a plurality of first pixel units disposed in the display area, each first pixel unit being electrically connected to a corresponding data line and a first gate line of the gate lines; and
a plurality of second pixel units disposed in the display area, each second pixel unit being electrically connected to a corresponding first pixel unit and a second gate line of the gate lines.

### Claim 18 (depends on 17)

The display device of claim 17, wherein the first and second gate lines electrically connected to the adjacent first and second pixel units are adjacent.

### Claim 19 (depends on 17)

The display device of claim 17, wherein the first pixel unit comprises:
a data switch including a first end electrically connected to the corresponding data line, a gate end electrically connected to the first gate line, and a second end electrically connected to a corresponding second pixel unit; and
a storage unit including a first end electrically connected to the second end of the data switch.

### Claim 20 (depends on 17)

The display device of claim 17, wherein the second pixel unit comprises:
a data switch including a first end electrically connected to the corresponding first pixel unit, and a gate end electrically connected to the second gate line; and
a storage unit including a first end electrically connected to a second end of the data switch, and a second end for receiving a common voltage.

### Claim 21 (depends on 1)

The display device of claim 1, wherein the adjust layer delivers a common voltage.

### Claim 22 (depends on 1)

The display device of claim 1, wherein the adjust layer comprises an opaque metal layer or a transparent electrode layer.

### Claim 23 (depends on 1)

The display device of claim 1, wherein the adjust layer is a transparent electrode layer having a thickness of about 400˜800 angstroms.

### Claim 24

A display device, comprising:
a substrate having a display area and a border area, the border area being substantially surrounding the display area;
a plurality of data lines disposed in the display area of the substrate;
a plurality of gate lines disposed in the display area of the substrate and substantially crossed with the data lines perpendicularly, the plurality of gate lines comprising a first set of gate lines and a second set of gate lines;
a plurality of first auxiliary gate lines disposed in the display area of the substrate, the first auxiliary gate lines being substantially parallel with the data lines, each first auxiliary gate line being electrically connected to a corresponding gate line of the first set of gate lines;
a plurality of second auxiliary gate lines disposed in the border area of the substrate, each second auxiliary gate line being electrically connected to a corresponding gate line of the second set of gate lines;
a driving module disposed in the border area of the substrate, the driving module being electrically connected to the data lines, the second auxiliary gate lines, and the first auxiliary gate lines;
a plurality of pixel units disposed in the display area of the substrate;
a plurality of common lines electrically coupled with the pixel units;
an insulation layer disposed in the border area, the second auxiliary gate lines being covered with the insulation layer; and
an adjust layer disposed in the border area to overlap at least one of the second auxiliary gate lines, at least a portion of the insulation layer being covered with the adjust layer, wherein the adjust layer comprises an opaque metal layer or a transparent electrode layer, and a first couple capacitor is formed between the at least one of the second auxiliary gate lines and the adjust layer wherein each first auxiliary gate line and the adjust layer are not overlapped, each first auxiliary gate line is not electrically connected to the second set of gate lines, and a second couple capacitor is formed between at least one of the second set of gate lines and at least one of the first auxiliary gate lines.

### Claim 25 (depends on 24)

The display device of claim 24, wherein the adjust layer is completely within the border area and not disposed in the display area.

### Claim 26 (depends on 24)

The display device of claim 24, wherein a thickness of each of the second auxiliary gate lines is about 1000˜3000 angstroms.

### Claim 27 (depends on 1)

The display device of claim 1, wherein the adjust layer is completely within the border area and not disposed in the display area.

### Claim 28 (depends on 1)

The display device of claim 1, wherein a thickness of each of the second auxiliary gate lines is about 1000˜3000 angstroms.