CN102270413A - Display device - Google Patents

Display device Download PDF

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Publication number
CN102270413A
CN102270413A CN2011102392545A CN201110239254A CN102270413A CN 102270413 A CN102270413 A CN 102270413A CN 2011102392545 A CN2011102392545 A CN 2011102392545A CN 201110239254 A CN201110239254 A CN 201110239254A CN 102270413 A CN102270413 A CN 102270413A
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CN
China
Prior art keywords
signal
routing layer
signal routing
cablings
cabling
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Pending
Application number
CN2011102392545A
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Chinese (zh)
Inventor
江佳铭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Original Assignee
CPTF Optronics Co Ltd
Chunghwa Picture Tubes Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by CPTF Optronics Co Ltd, Chunghwa Picture Tubes Ltd filed Critical CPTF Optronics Co Ltd
Priority to CN2011102392545A priority Critical patent/CN102270413A/en
Publication of CN102270413A publication Critical patent/CN102270413A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a display device, comprising a display panel, a first signal routing layer, a second signal routing layer and a third signal routing layer, wherein the first signal routing layer, the second signal routing layer and the third signal routing layer are disposed in a side frame area around the display panel. Moreover, the first signal routing layer, the second signal routing layer and the third signal routing layer are located at different horizontal heights. The first signal routing layer, the second signal routing layer and the third signal routing layer are used for transferring a control signal to the display panel.

Description

Display device
Technical field
The invention relates to a kind of display device, and particularly relevant for a kind of display device and the design of signal cabling thereof.
Background technology
On the present market, LCD more because have that external form is frivolous, power saving and feature such as radiationless, and be widely used on the electronic products such as computer screen, mobile phone, PDA(Personal Digital Assistant), flat computer, e-book, flat-surface television.
The principle of work of LCD system utilizes the voltage difference that changes the liquid crystal layer two ends to change the ordered state of the liquid crystal molecule in the liquid crystal layer, in order to change the light transmission of liquid crystal layer, to cooperate backlight module again the light source that provided with show image.In general, comprise viewing area and the peripheral frame region that display panel is set in the display device.At present the driving circuit of display panel is divided into the source electrode drive circuit (source driver) of data signals (data signal) and the gate drive circuit (gate driver) of scanning signal (scan signal) mostly, and adopts matrix-style and drive.
Lift a concrete instance, see also Fig. 1, it illustrates a kind of synoptic diagram of known display device 100.Can have the data line 122 of a plurality of vertical direction and the gate line 124 of a plurality of horizontal directions in the viewing area of the display panel 120 of display device 100, form the driving grid of matrix-style.Suppose that output/input interface 140 is arranged at the below of display device 100, then must having partly, the signal cabling is sent to the scanning signal that gate drive circuit (not illustrating) produces on a plurality of gate lines 124 of display panel 120 by a left side or the right both sides of output/input interface 140 along display panel 120.And then display panel 120 can write to picture element unit, show image by this according to scanning signal control data signal.
Along with the resolution raising of display device, the number of the gate line of display panel constantly increases, so need provide enough wide frame region to hold the signal cabling of a large amount of scanning signals.Yet, because the display that most of portable electronic devices is installed is small-sized LCD, so how to reduce the frame region area to reduce the important topic that the infrabasal plate size is the small design LCD.And the width design of working as the signal cabling is narrow (overheated easily, and may make difficulty and the yield problem arranged), or signal cabling each interval when too near (electrically signal transmit phase mutual interference), also may the signal quality of signal cabling transmission be had a strong impact on.
Summary of the invention
For addressing the above problem, a kind of display device that the objective of the invention is to propose adopts three layers of signal cabling that are positioned at differentiated levels in frame region, utilize three layers of signal cabling to overlap or staggered design, the border width of display device is dwindled, in addition, can avoid adopting narrow signal trace width design, and can avoid signal cabling each interval near excessively, the signal that improves the signal cabling by this transmits stability, can corresponding gate drive circuit in order to transmit the scanning signal of display panel.
Display device of the present invention, it comprises display panel, the first signal routing layer, the second signal routing layer and the 3rd signal routing layer.Wherein, the first signal routing layer is arranged in this display panel frame zone on every side.The second signal routing layer is arranged in this frame region, and this second signal routing layer is positioned at different level heights with this first signal routing layer.The 3rd signal routing layer is arranged in this frame region, and the 3rd signal routing layer is positioned at different level heights with this first signal routing layer and this second signal routing layer, and wherein this first signal routing layer, this second signal routing layer and the 3rd signal routing layer are in order to transmit a controlling signal to this display panel.
In one embodiment of this invention, wherein this controlling signal comprises the one scan controlling signal, and this scan control signal is produced in order to control this display panel by a gate drive circuit.
In one embodiment of this invention, wherein this first signal routing layer comprises a plurality of first signal cablings of par height, this second signal routing layer comprises a plurality of second signal cablings of par height, and the 3rd signal routing layer comprises a plurality of the 3rd signal cablings of par height.
In one embodiment of this invention, wherein the upright position of these first signal cablings, these second signal cablings and this grade in an imperial examination three signal cablings overlaps mutually.
In one embodiment of this invention, wherein these first signal cablings, these second signal cablings and this grade in an imperial examination three signal cablings are arranged at different level heights respectively from low to high, the upright position of these first signal cablings and this grade in an imperial examination three signal cablings overlaps mutually, and the upright position of these first signal cablings and these second signal cablings is interlaced.
In one embodiment of this invention, wherein this frame region at this first signal routing layer, this second signal routing layer and the 3rd signal routing layer place comprises this display panel at least one side all around.
Description of drawings
Fig. 1 illustrates a kind of synoptic diagram of known display device;
Fig. 2 illustrates the synoptic diagram according to a kind of display device among the embodiment of this disclosure of documents;
Fig. 3 is illustrated among the embodiment among Fig. 2 frame region along the cross-sectional view of profile line A-A; And
Fig. 4 is illustrated among another embodiment among the 2nd figure frame region along the cross-sectional view of profile line A-A.
[primary clustering symbol description]
100: display device
122: data line
140: output/input interface
320: display panel
342: frame region
L2, L5: the second signal routing layer 120: display panel
124: gate line
300: display device
340: frame
L1, L4: the first signal routing layer
L3, L6: the 3rd signal routing layer
344: substrate
347: the second insulation courses
Wd: 346: the first insulation courses of width
348: the three insulation courses
G11 ~ G14, G41 ~ G44: the first signal cabling
G21 ~ G24, G51 ~ G54: the second signal cabling
G31 ~ G34, G61 ~ G64: the 3rd signal cabling.
Embodiment
See also Fig. 2, it illustrates the synoptic diagram according to a kind of display device 300 among the embodiment of this disclosure of documents, and as shown in Figure 2, display device 300 comprises display panel 320 and frame 340.
This disclosure of documents has disclosed the signal cabling design of display device 300 on frame 340.In this embodiment, illustrate with the frame region on the side that is positioned at display panel 320 left sides 342, but the present invention is also not only exceeded with the side on display panel 320 left sides.
See also Fig. 3, it is illustrated among the embodiment among Fig. 2 frame region 342 along the cross-sectional view of profile line A-A.As shown in Figure 3, in practical application, frame region 342 below can be substrate 344, is sequentially provided with first insulation course 346, second insulation course 347 and the 3rd insulation course 348 on the substrate 344.In this embodiment, from bottom to top be sequentially provided with the first signal routing layer L1, the second signal routing layer L2 and the 3rd signal routing layer L3 in the frame region 342.Above-mentioned three layers of signal routing layer (L1 ~ L3) be arranged at respectively in first insulation course 346, second insulation course 347 and the 3rd insulation course 348, and have different level heights respectively.
As shown in Figure 3, this first signal routing layer L1 comprises a plurality of first signal cablings of par height, as among Fig. 3 being first signal cabling G11 ~ G14.This second signal routing layer L2 comprises a plurality of second signal cablings of par height, as among Fig. 3 being second signal cabling G21 ~ G24.The 3rd signal routing layer L3 comprises a plurality of the 3rd signal cablings of par height, as among Fig. 3 being the 3rd signal cabling G31 ~ G34.
In the embodiment of Fig. 3, the signal cabling among the above-mentioned first signal routing layer L1, the second signal routing layer L2 and the 3rd signal routing layer L3 is attached most importance to and is stacked meter.For instance, the upright position of the first signal cabling G11, the second signal cabling G21 and the 3rd signal cabling G31 overlaps mutually, and the upright position of the first signal cabling G12, the second signal cabling G22 and the 3rd signal cabling G32 overlaps mutually.
See through the signal cabling design of three layers of above-mentioned differentiated levels, under narrower border width (as the width W d among Fig. 2), can hold more signal cabling.For instance, compare the individual layer signal cabling of same level height, present embodiment is in the signal cabling that ideally can hold the triple amount in the unit level width, therefore, in this disclosure of documents the width of frame region 342 (as the border width Wd among Fig. 2) just can be reduced to 1/3 of individual layer signal cabling.
In this embodiment, each signal cabling G11 ~ G34 in the middle of the first signal routing layer L1, the second signal routing layer L2 and the 3rd signal routing layer L3 can be respectively in order to transmit controlling signal to display panel, in the practical application, controlling signal can be the employed scan control signal of display driver (scan signal), and the scan control signal is produced in order to control display panel 320 by gate drive circuit (gate driver).
Yet in this disclosure of documents, the upright position of the signal cabling among the first signal routing layer L1, the second signal routing layer L2 and the 3rd signal routing layer L3 does not stack meter only for attaching most importance to.See also Fig. 4, it is illustrated among another embodiment among Fig. 2 frame region 342 along the cross-sectional view of profile line A-A.
As shown in Figure 4, this first signal routing layer L4 comprises a plurality of first signal cablings of par height, as among Fig. 4 being first signal cabling G41 ~ G44.This second signal routing layer L5 comprises a plurality of second signal cablings of par height, as among Fig. 4 being second signal cabling G51 ~ G54.The 3rd signal routing layer L6 comprises a plurality of the 3rd signal cablings of par height, as among Fig. 4 being the 3rd signal cabling G61 ~ G64.
In the embodiment of Fig. 4, the signal cabling among the above-mentioned first signal routing layer L4, the second signal routing layer L5 and the 3rd signal routing layer L6 is a staggered designs.First signal cabling G41 ~ G44, second signal cabling G51 ~ G54 are arranged at different level heights respectively from low to high with the 3rd signal cabling G61 ~ G64.
Wherein, the upright position of first signal cabling G41 ~ G44 and the 3rd signal cabling G61 ~ G64 overlaps mutually.The upright position of second signal cabling G51 ~ G54 then with above-mentioned two groups of signal cablings (first signal cabling G41 ~ G44 and the 3rd signal cabling G61 ~ G64) interlaced.
For instance, the upright position of the first signal cabling G41 and the 3rd signal cabling G61 overlaps mutually.The upright position of the first signal cabling G42 and the 3rd signal cabling G62 overlaps mutually.The upright position of the second signal cabling G52 and between the 3rd signal cabling G61 and the 3rd signal cabling G62, forms staggered design then between the first signal cabling G41 and the first signal cabling G42 by this.
Because the material of signal cabling adopts metal material mostly, owing to can have the coupling capacitance phenomenon between the metal routing,, cause the signal Transfer Quality to descend if two signal cablings hypotelorism each other can make that the coupling capacitance influence between the signal cabling strengthens.In the embodiment of Fig. 4, signal cabling among the first signal routing layer L4, the second signal routing layer L5 and the 3rd signal routing layer L6 is a staggered designs, thus, can increase the spacing distance between signal cabling G41 ~ G64 of the first signal routing layer L4, the second signal routing layer L5 and the 3rd signal routing layer L6, to reduce the coupling capacitance phenomenon between the metal signal cabling.
In the embodiment of Fig. 4, see through the signal cabling design of three layers of above-mentioned differentiated levels, under narrower border width (as the width W d among Fig. 2), can hold more signal cabling.In addition, and can reduce coupling capacitance between the signal cabling simultaneously.
In the embodiment of Fig. 4, each signal cabling G41 ~ G64 in the middle of the first signal routing layer L4, the second signal routing layer L5 and the 3rd signal routing layer L6 also can be respectively in order to transmit controlling signal to display panel, in the practical application, controlling signal can be the employed scan control signal of display driver (scan signal), the scan control signal is produced in order to control display panel 320 by gate drive circuit (gate driver), and the scan control signal can be from the output/input interface (not illustrating) or the drive circuit module (not illustrating) of display device 300.
What must replenish is that the frame region 342 at three layers of signal routing layer place also can be contained in display panel 320 at least one side all around in the foregoing description.That is to say that three layers of signal routing layer of this disclosure of documents also can be used for right side side, the upside side of display panel 320 or are used for plural side (as limit, the left and right sides) or the like simultaneously, do not exceed with the left border that Fig. 2 was illustrated.
Though this disclosure discloses as above with embodiment; so it is not in order to limit this disclosure; anyly have the knack of this skill person; in the spirit and scope that do not break away from this disclosure; when can being used for a variety of modifications and variations, so the protection domain of this disclosure is as the criterion when looking accompanying the claim person of defining.

Claims (6)

1. a display device is characterized in that, comprises:
One display panel;
One first signal routing layer is arranged in this display panel frame zone on every side;
One second signal routing layer is arranged in this frame region, and this second signal routing layer is positioned at different level heights with this first signal routing layer; And
One the 3rd signal routing layer, be arranged in this frame region, and the 3rd signal routing layer is positioned at different level heights with this first signal routing layer and this second signal routing layer, and wherein this first signal routing layer, this second signal routing layer and the 3rd signal routing layer are in order to transmit a controlling signal to this display panel.
2. display device according to claim 1 is characterized in that: wherein this controlling signal comprises the one scan controlling signal, and this scan control signal is produced in order to control this display panel by a gate drive circuit.
3. display device according to claim 1, it is characterized in that: wherein this first signal routing layer comprises a plurality of first signal cablings of par height, this second signal routing layer comprises a plurality of second signal cablings of par height, and the 3rd signal routing layer comprises a plurality of the 3rd signal cablings of par height.
4. display device according to claim 3 is characterized in that: wherein the upright position of these first signal cablings, these second signal cablings and this grade in an imperial examination three signal cablings overlaps mutually.
5. display device according to claim 3, it is characterized in that: wherein these first signal cablings, these second signal cablings and this grade in an imperial examination three signal cablings are arranged at different level heights respectively from low to high, the upright position of these first signal cablings and this grade in an imperial examination three signal cablings overlaps mutually, and the upright position of these first signal cablings and these second signal cablings is interlaced.
6. display device according to claim 1 is characterized in that: wherein this frame region at this first signal routing layer, this second signal routing layer and the 3rd signal routing layer place comprises this display panel at least one side all around.
CN2011102392545A 2011-08-19 2011-08-19 Display device Pending CN102270413A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104700813A (en) * 2015-04-01 2015-06-10 上海中航光电子有限公司 Array substrate and forming method thereof
CN108322579A (en) * 2018-04-25 2018-07-24 维沃移动通信有限公司 A kind of mobile terminal
CN108563082A (en) * 2018-04-27 2018-09-21 京东方科技集团股份有限公司 Circuit board, display device and driving method
CN109147574A (en) * 2018-10-10 2019-01-04 武汉华星光电半导体显示技术有限公司 Display panel
WO2019206051A1 (en) * 2018-04-26 2019-10-31 京东方科技集团股份有限公司 Display panel and display device
CN110827685A (en) * 2019-10-28 2020-02-21 武汉华星光电半导体显示技术有限公司 Display panel and electronic device
CN111158534A (en) * 2019-12-06 2020-05-15 深圳市善柔科技有限公司 Routing method of narrow-frame touch screen
US11508758B2 (en) * 2018-10-10 2022-11-22 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Display panel and display

Citations (1)

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Publication number Priority date Publication date Assignee Title
CN1743926A (en) * 2004-09-01 2006-03-08 精工爱普生株式会社 Electro-optical device and electronic apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1743926A (en) * 2004-09-01 2006-03-08 精工爱普生株式会社 Electro-optical device and electronic apparatus

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104700813B (en) * 2015-04-01 2017-10-03 上海中航光电子有限公司 Array base palte and forming method thereof
US10079069B2 (en) 2015-04-01 2018-09-18 Shanghai Avic Opto Electronics Co., Ltd. Array substrate and method for forming the same
CN104700813A (en) * 2015-04-01 2015-06-10 上海中航光电子有限公司 Array substrate and forming method thereof
CN108322579A (en) * 2018-04-25 2018-07-24 维沃移动通信有限公司 A kind of mobile terminal
WO2019206051A1 (en) * 2018-04-26 2019-10-31 京东方科技集团股份有限公司 Display panel and display device
US11751442B2 (en) 2018-04-26 2023-09-05 Boe Technology Group Co., Ltd. Display panel and display device
US11156882B2 (en) 2018-04-27 2021-10-26 Chongqing Boe Optoelectronics Technology Co., Ltd. Circuit substrate, display device and driving method
CN108563082A (en) * 2018-04-27 2018-09-21 京东方科技集团股份有限公司 Circuit board, display device and driving method
WO2020073434A1 (en) * 2018-10-10 2020-04-16 武汉华星光电半导体显示技术有限公司 Display panel and display
CN109147574A (en) * 2018-10-10 2019-01-04 武汉华星光电半导体显示技术有限公司 Display panel
US11508758B2 (en) * 2018-10-10 2022-11-22 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Display panel and display
CN110827685A (en) * 2019-10-28 2020-02-21 武汉华星光电半导体显示技术有限公司 Display panel and electronic device
WO2021082154A1 (en) * 2019-10-28 2021-05-06 武汉华星光电半导体显示技术有限公司 Display panel and electronic device
CN110827685B (en) * 2019-10-28 2021-05-07 武汉华星光电半导体显示技术有限公司 Display panel and electronic device
US11209876B1 (en) 2019-10-28 2021-12-28 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Display panel and electronic device
CN111158534A (en) * 2019-12-06 2020-05-15 深圳市善柔科技有限公司 Routing method of narrow-frame touch screen

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Application publication date: 20111207