CN105261322A - Flat-panel display and drive backboard thereof - Google Patents
Flat-panel display and drive backboard thereof Download PDFInfo
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- CN105261322A CN105261322A CN201510783874.3A CN201510783874A CN105261322A CN 105261322 A CN105261322 A CN 105261322A CN 201510783874 A CN201510783874 A CN 201510783874A CN 105261322 A CN105261322 A CN 105261322A
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- grid
- sweep trace
- grid sweep
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Abstract
Disclosed is a drive backboard, which comprises a plurality of grid scanning lines, and a grid voltage line connected with the grid scanning lines. Each of the grid scanning lines is provided with at least two switches controlled by different grid control lines. When all switches on the grid scanning lines are switched on at the same time, the grid scanning lines are connected with the grid voltage line to be switched on. Different combinations of grid control lines are used for controlling the switching-on states of different grid scanning lines, and only one grid scanning line is controlled to be switched on at the same time. The invention also provides a flat-panel display comprising the above drive backboard. According to the technical scheme of the flat-panel display and the drive backboard, the number of the peripheral leads of the grid scanning lines is greatly reduced, and the width of a wiring region is also reduced. Therefore, the width of the frame region of the display is reduced.
Description
Technical field
The present invention relates to technical field of flat panel display, particularly relate to a kind of flat-panel monitor and drive backboard.
Background technology
Flat-panel monitor, no matter be LCD, OLED of Dynamic Announce or the EPD Electronic Paper display of static state display, it is all the form of lining by line scan, realize picture imaging, in the driving backboard of existing flat-panel monitor, every bar grid sweep trace is all connected to chip by a lead-in wire, is controlled separately by a pin of chip, therefore display has how many row grid sweep trace, just needs to utilize how many lead-in wires to connect.Concrete Fig. 1 is the line schematic diagram of driving backboard of the prior art as shown in Figure 1, and in array of display, grid sweep trace (K1 ~ Kn) controls display device a line TFT grid and opens, data line (S
1~ S
m) control voltage or the electric current of each pixel in this row, thus control the brightness of pixel, grid sweep trace is opened line by line, makes data line line by line and is pixel charging, after completing one time and scanning, also just completes the display of a frame picture.Have the driving backboard of above-mentioned line, the grid sweep trace at display edge is gone between and reaches hundreds of to several thousand, display is larger, and peripheral wiring is more, and routing region width is just difficult to reduce, and makes display frame region larger.
Summary of the invention
For solving the problem, the invention provides a kind of flat-panel monitor and driving backboard, significantly can reduce the peripheral leads quantity of grid sweep trace, reducing routing region width, thus reducing the width of display frame region.
One provided by the invention drives backboard, comprise many grid sweep traces, and the gate voltage line to be connected with described grid sweep trace, grid sweep trace described in every bar is provided with at least two switches by different grid-control line traffic controls, and when on described grid sweep trace, all switches are opened simultaneously, described grid sweep trace realizes being communicated with and opening with described gate voltage line, and the combination of different described grid control lines is for controlling the unlatching of different grid sweep traces and synchronization is only opened for controlling a described grid sweep trace.
Preferably, in above-mentioned driving backboard, the quantity of described switch is the first preset value, and the quantity of described grid control line is the second preset value, and described first preset value is: the integral part of the half of described second preset value.
Preferably, in above-mentioned driving backboard, described switch is thin film transistor (TFT) gate circuit switch.
Preferably, in above-mentioned driving backboard, described switch is α-Si thin film transistor (TFT) gate circuit switch, low-temperature polysilicon film transistor gate circuit switch or oxide semiconductor thin-film transistor gate circuit switch.
A kind of flat-panel monitor provided by the invention, comprises any one driving backboard as above.
Above-mentioned driving backboard provided by the invention, owing to grid sweep trace described in every bar being provided with at least two switches by different grid-control line traffic controls, and when on described grid sweep trace, all switches are opened simultaneously, described grid sweep trace realizes being communicated with and opening with described gate voltage line, the combination of different described grid control lines is for controlling the unlatching of different grid sweep traces and synchronization is only opened for controlling a described grid sweep trace, utilize the combination of different grid control lines just can control more grid sweep trace, thus significantly can reduce the peripheral leads quantity of grid sweep trace, reduce routing region width, thus reduce the width of display frame region.Flat-panel monitor provided by the invention, owing to comprising above-mentioned driving backboard, therefore has the width of less frame region.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the line schematic diagram of driving backboard of the prior art;
The schematic diagram of the first driving backboard that Fig. 2 provides for the embodiment of the present application.
Embodiment
Core concept of the present invention is provide a kind of flat-panel monitor and drive backboard, significantly can reduce the peripheral leads quantity of grid sweep trace, reduce routing region width, thus reduce the width of display frame region.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present application provide the first drive backboard as shown in Figure 2, Fig. 2 provide for the embodiment of the present application the first drive the schematic diagram of backboard.It should be noted that, this driving backboard has 4 grid control lines and 6 grid sweep traces, but this just in order to be described this embodiment for an example, any restriction is not caused to this embodiment, in fact, the driving backboard that the present embodiment provides can comprise any bar grid control line and any bar grid sweep trace.
In this driving backboard, comprise many grid sweep trace G1, G2, G3, G4, G5 and G6, and the gate voltage line GV to be connected with described grid sweep trace, grid sweep trace described in every bar is provided with at least two switches by different grid-control line traffic controls, such as, the grid sweep trace G1 being positioned at the top have right two switches of a first from left, and when on described grid sweep trace, all switches are opened simultaneously, described grid sweep trace realizes being communicated with and opening with described gate voltage line, the combination of different described grid control lines is for controlling the unlatching of different grid sweep traces and synchronization is only opened for controlling a described grid sweep trace.For example, above-mentioned two switches on grid sweep trace G1, wherein, the switch on the left side controls by grid control line GC1, the switch on the right controls by grid control line GC2, when all switches on GC1 and GC2 are opened simultaneously, above-mentioned two switches on grid sweep trace G1 are only had to be the state of simultaneously opening, therefore grid sweep trace G1 is communicated with gate voltage line GV, and the switch now on other grid sweep traces has at least one to be cut out, therefore every other grid sweep trace now can not be communicated with gate voltage line, be in closed condition, and when the switch on GC1 and GC3 is opened simultaneously, grid sweep trace G2 can be communicated with gate voltage line GV, now no longer be communicated with GV because the switch controlled by GC2 on G1 is in closed condition.In sum, because GV remains display apparatus grid cut-in voltage always, as long as so two switches conducting simultaneously on a certain horizontal scanning line, then this journey grid sweep trace will be communicated with GV line, and this journey is opened.Because the switch on every row grid sweep trace is staggered, just ensure that not having two horizontal scanning lines can be in the state of simultaneously opening.In that case, 4 grid control lines and 1 gate voltage line can be utilized, control the unlatching successively of 6 grid sweep traces, this reduces two grid control lines, and original controlling functions can be realized equally, thus significantly can reduce the peripheral leads quantity of grid sweep trace, reduce routing region width, thus reduce the width of display frame region.
By that analogy, when employing m bar grid control line, and often row grid sweep trace adopts n (n<m) individual switch to be connected with public gate voltage line, then can lean on m+1 bar peripheral wiring, controls
bar grid sweep trace.
The second that the embodiment of the present application provides drives backboard, except have with above-mentioned the first drive except the technical characteristic that backboard is identical, also comprise following technical characteristic: the quantity of described switch is the first preset value, the quantity of described grid control line is the second preset value, and described first preset value is: the integral part of the half of described second preset value, in this case, controllable grid sweep trace is maximum, when also just meaning that the grid sweep trace quantity controlled at needs is certain, the minimum number of the grid control line that such configuration needs.For example, when grid control line is 5, when the number of switches on each grid control line is 2, the number of controllable grid sweep trace is 10; When grid control line is 6, when the number of switches on each grid control line is 3, the number of controllable grid sweep trace is 20; When grid control line is 7, when the number of switches on each grid control line is 3, the number of controllable grid sweep trace is 35; When grid control line is 8, when the number of switches on each grid control line is 4, the number of controllable grid sweep trace is 70; When grid control line is 9, when the number of switches on each grid control line is 4, the number of controllable grid sweep trace is 126; When grid control line is 10, when the number of switches on each grid control line is 5, the number of controllable grid sweep trace is 252; When grid control line is 11, when the number of switches on each grid control line is 5, the number of controllable grid sweep trace is 462.Visible, often increase a grid control line, then controllable grid sweep trace line number is all to increase close to double speed, so just can reduce the peripheral wiring of grid sweep trace further, thus reduction display frame area, and also the pin number of driving chip will be greatly reduced.
Further, in above-mentioned driving backboard, described switch is thin film transistor (TFT) gate circuit switch, described switch can be α-Si thin film transistor (TFT) gate circuit switch, low-temperature polysilicon film transistor gate circuit switch or oxide semiconductor thin-film transistor gate circuit switch, and except adopting N-type channel thin-film transistor, P type channel thin-film transistor can also be adopted.
The manufacturing process flow of Display Driver backboard do not changed by above-mentioned driving backboard, and on the basis not increasing extra manufacturing cost, significantly reduce frame peripheral wiring, be not only applicable to TFT-LCD display, be also applicable to the multiple flat-panel monitor such as OLED, EPD.
The embodiment of the present application additionally provides a kind of flat-panel monitor, comprises any one driving backboard as above, therefore has the frame region of less width.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. one kind drives backboard, it is characterized in that, comprise many grid sweep traces, and the gate voltage line to be connected with described grid sweep trace, grid sweep trace described in every bar is provided with at least two switches by different grid-control line traffic controls, and when on described grid sweep trace, all switches are opened simultaneously, described grid sweep trace realizes being communicated with and opening with described gate voltage line, and the combination of different described grid control lines is for controlling the unlatching of different grid sweep traces and synchronization is only opened for controlling a described grid sweep trace.
2. driving backboard according to claim 1, is characterized in that, the quantity of described switch is the first preset value, and the quantity of described grid control line is the second preset value, and described first preset value is: the integral part of the half of described second preset value.
3. driving backboard according to claim 1, is characterized in that, described switch is thin film transistor (TFT) gate circuit switch.
4. driving backboard according to claim 3, is characterized in that, described switch is α-Si thin film transistor (TFT) gate circuit switch, low-temperature polysilicon film transistor gate circuit switch or oxide semiconductor thin-film transistor gate circuit switch.
5. a flat-panel monitor, is characterized in that, comprises the driving backboard as described in any one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783874.3A CN105261322A (en) | 2015-11-13 | 2015-11-13 | Flat-panel display and drive backboard thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783874.3A CN105261322A (en) | 2015-11-13 | 2015-11-13 | Flat-panel display and drive backboard thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105261322A true CN105261322A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783874.3A Pending CN105261322A (en) | 2015-11-13 | 2015-11-13 | Flat-panel display and drive backboard thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147630A (en) * | 2018-09-25 | 2019-01-04 | 武汉华星光电半导体显示技术有限公司 | A kind of GOA detection circuit and its test method |
| CN109410809A (en) * | 2018-12-18 | 2019-03-01 | 武汉华星光电半导体显示技术有限公司 | GOA overhauls circuit |
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| JPS6180226A (en) * | 1984-09-28 | 1986-04-23 | Toshiba Corp | Active matrix driving device |
| KR20060076480A (en) * | 2004-12-29 | 2006-07-04 | 엘지.필립스 엘시디 주식회사 | Driving device of liquid crystal display |
| US20070188433A1 (en) * | 2006-02-14 | 2007-08-16 | Hitachi Displays, Ltd. | Display device |
| CN101710481A (en) * | 2009-11-25 | 2010-05-19 | 福建华映显示科技有限公司 | Driving circuit and scanning method for liquid crystal display |
| CN101762915A (en) * | 2008-12-24 | 2010-06-30 | 北京京东方光电科技有限公司 | TFT-LCD (Thin Film Transistor Liquid Crystal Display) array base plate and drive method thereof |
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2015
- 2015-11-13 CN CN201510783874.3A patent/CN105261322A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6180226A (en) * | 1984-09-28 | 1986-04-23 | Toshiba Corp | Active matrix driving device |
| KR20060076480A (en) * | 2004-12-29 | 2006-07-04 | 엘지.필립스 엘시디 주식회사 | Driving device of liquid crystal display |
| US20070188433A1 (en) * | 2006-02-14 | 2007-08-16 | Hitachi Displays, Ltd. | Display device |
| CN101762915A (en) * | 2008-12-24 | 2010-06-30 | 北京京东方光电科技有限公司 | TFT-LCD (Thin Film Transistor Liquid Crystal Display) array base plate and drive method thereof |
| CN101710481A (en) * | 2009-11-25 | 2010-05-19 | 福建华映显示科技有限公司 | Driving circuit and scanning method for liquid crystal display |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147630A (en) * | 2018-09-25 | 2019-01-04 | 武汉华星光电半导体显示技术有限公司 | A kind of GOA detection circuit and its test method |
| CN109410809A (en) * | 2018-12-18 | 2019-03-01 | 武汉华星光电半导体显示技术有限公司 | GOA overhauls circuit |
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Effective date of registration: 20170116 Address after: 410000 Hunan province Changsha high tech Development Zone, Lu Feng Road No. 40 Applicant after: Hunan Electronic Information Industry Group Co., Ltd. Address before: 410205 Hunan province Changsha high tech Development Zone, Lu Feng Road No. 40 Park Applicant before: HUNAN PUZHAO AOBOLE FLAT DISPLAY DEVICE CO., LTD. |
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