CN100495492C - Display panel module - Google Patents
Display panel module Download PDFInfo
- Publication number
- CN100495492C CN100495492C CNB2006101087281A CN200610108728A CN100495492C CN 100495492 C CN100495492 C CN 100495492C CN B2006101087281 A CNB2006101087281 A CN B2006101087281A CN 200610108728 A CN200610108728 A CN 200610108728A CN 100495492 C CN100495492 C CN 100495492C
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- driving chip
- data driving
- printed circuit
- display panel
- pcb
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- 238000012360 testing method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 16
- 239000011521 glass Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 238000012797 qualification Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
In the display panel, the data drive chip is connected on the panel in series, wherein the first flexible PCB is arranged between the PCB and one chip end to send data to the chip, and the second flexible PCB is arranged between the PCB and the chip to transmit power signal to the chip.
Description
Technical field
The present invention relates to a kind of flat-panel screens, particularly relate to a kind of display module of flat-panel screens.
Background technology
The type of drive of display panel is two flexible circuit board (Tape CarrierPackage that individual packages had data-driven (datad river) chip and turntable driving (sCa1nd river) chip traditionally; TCP), with the automatic juncture of coil type (Tape Automated Bonding; TAB) be connected with the data line and the sweep trace of display panel respectively, to drive a plurality of pixels of display panel.Along with the demand of display panel improves and the consideration of cost day by day, the technology direction that tended to omit the foregoing circuit plate develops at present, for example directly chip for driving is attached to glass substrate (Chip On Glass; COG) on.
Fig. 1 shows the synoptic diagram of existing display module 100.Data driving chip 112 and scanning drive chip 114 use membrane of flip chip (Chip On Film; COF) technology directly is attached on the glass substrate of display panel 110.Have time schedule controller 122, gamma voltage generator 124 and DC-DC converter 126 on the printed circuit board (PCB) 120.Wherein, time schedule controller 122 and gamma voltage generator 124 provide data-signal (as clock signal and gamma voltage) to data driving chip 112 respectively, and 126 of DC-DC converters are responsible for providing power supply signal (power signal) to data driving chip 112 and scanning drive chip 114.
In this kind conventional architectures, each data driving chip 112 all is to receive clock signals from time schedule controller 122 one to one, all needs to use other flexible printed circuit (not illustrating) or other fastening means to be connected with time schedule controller 122 on the printed circuit board (PCB) 120.Therefore, printed circuit board (PCB) 120 glass substrates approximately necessary and display panel 110 are isometric, so that can corresponding be connected to whole data driving chip 112, this can increase production cost and reduce the manufacturing qualification rate.
Summary of the invention
Therefore one aspect of the present invention provides a kind of display module, in order to reducing production costs and Production Time, and improves and makes qualification rate.
According to a preferred embodiment of the present invention, this display module comprises a printed circuit board (PCB), a display panel, one first group of data driving chip, one second group of data driving chip, one first flexible printed circuit, one second flexible printed circuit and one the 3rd flexible printed circuit.First group of data driving chip is to be arranged on the display panel in the serial connection mode, and second group of data driving chip is to be arranged on the display panel in the serial connection mode.
First flexible printed circuit is arranged between one first end of printed circuit board (PCB) and first group of data driving chip, in order to data signal to the first group data driving chip.Second flexible printed circuit is arranged between one first end of one second end of printed circuit board (PCB), first group of data driving chip and second group of data driving chip, in order to transmission power supply signal to the first group data driving chip, and data signal to the second group data driving chip.The 3rd flexible printed circuit is arranged between one second end of printed circuit board (PCB) and second group of data driving chip, in order to transmit power supply signal to the second group data driving chip.
According to another preferred embodiment of the present invention, this display module comprises a printed circuit board (PCB), a display panel, a plurality of data driving chip, one first flexible printed circuit and at least one second flexible printed circuit.Data driving chip is to be arranged on the display panel in the serial connection mode.First flexible printed circuit is arranged between the end of described data driving chip of printed circuit board (PCB) and serial connection, in order to data signal to data driving chip.Second flexible printed circuit is arranged between the described data driving chip of printed circuit board (PCB) and serial connection, in order to transmit power supply signal to data driving chip.
Description of drawings
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, the accompanying drawing formula is described in detail as follows:
Fig. 1 shows the synoptic diagram of existing display module;
Fig. 2 shows the synoptic diagram of the display module of a preferred embodiment of the present invention;
Fig. 3 shows the synoptic diagram of the display module of another preferred embodiment of the present invention;
Fig. 4 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration of explanation serial connection connecting line on the glass substrate of display panel;
Fig. 5 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the internal wiring configuration of explanation data driving chip;
Fig. 6 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration of auxiliary connecting line on the glass substrate of explanation display panel;
Fig. 7 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration mode of explanation test pin; And
Fig. 8 shows the synoptic diagram of a preferred embodiment of the present invention, sets the configuration mode of pin in order to explanation.
The reference numeral explanation
100: display module 110: display panel
112: data driving chip 114: scanning drive chip
120: printed circuit board (PCB) 122: time schedule controller
124: gamma voltage generator 126: DC-DC converter
200: display module 210: display panel
212a: first crowd of data driving chip 212b: second group of data driving chip
220: 232: the first flexible printed circuits of printed circuit board (PCB)
236: the three flexible printed circuits of 234: the second flexible printed circuits
300: display module 310: display panel
312: data driving chip 320: printed circuit board (PCB)
334: the second flexible printed circuits of 332: the first flexible printed circuits
410: display panel 412a, 412b: data driving chip
422a, 422b: signal contact 432: serial connection connecting line
512: data driving chip 522: signal contact
542: internal wiring 610: display panel
612: data driving chip 622: signal contact
652: auxiliary connecting line 710: display panel
712a, 712b: data driving chip 722a, 722b: signal contact
732a, 732b: serial connection connecting line 734a, 734b: test pin
810: display panel 812: data driving chip
822: signal contact 862: set pin
Embodiment
The present invention is arranged at data driving chip on the display panel in the serial connection mode, and uses at least two flexible printed circuits to be responsible for data signal and power supply signal respectively, and the area that so can reduce printed circuit board (PCB) is to reduce production costs.Moreover, be connected or the like design by the inside between the signal contact of the configuration of relative position between data driving chip and flexible printed circuit, data driving chip or external electric, the present invention can further reduce the number of required flexible printed circuit, and improve to make qualification rate and reduce production costs.
Fig. 2 shows the synoptic diagram of the display module of a preferred embodiment of the present invention.Display module 200 comprises a display panel 210, a printed circuit board (PCB) 220, one first crowd of data driving chip 212a, one second group of data driving chip 212b, one first flexible printed circuit 232, one second flexible printed circuit 234 and one the 3rd flexible printed circuit 236.First crowd of data driving chip 212a is arranged on the display panel 210 in serial connection (cascade) mode, and second crowd of data driving chip 212b also is arranged on the display panel 210 in the serial connection mode.
First flexible printed circuit 232 is arranged between first end of printed circuit board (PCB) 220 and first crowd of data driving chip 212a, in order to data signal to the first crowd data driving chip 212a.Second flexible printed circuit 234 is arranged between first end of second end of printed circuit board (PCB) 220, first crowd of data driving chip 212a and second crowd of data driving chip 212b, in order to transmission power supply signal to the first crowd data driving chip 212a, and data signal to the second crowd data driving chip 212b.The 3rd flexible printed circuit 236 is arranged between second end of printed circuit board (PCB) 220 and second crowd of data driving chip 212b, in order to transmit power supply signal to the second crowd data driving chip 212b.
Usually have time schedule controller, gamma voltage generator and DC-DC converter on the printed circuit board (PCB) 220, wherein in order to produce data-signals such as clock signal and gamma voltage, DC-DC converter then is responsible for providing power supply signal respectively for time schedule controller and gamma voltage generator.This preferred embodiment uses a flexible printed circuit (as first flexible printed circuit 232) that data-signal is sent to the data driving chip (as first crowd of data driving chip 212a) of serial connection, and uses another flexible printed circuit (as second flexible printed circuit 234) power supply signal to be sent to the data driving chip (as first crowd of data driving chip 212a) of above-mentioned serial connection.So, data-signal can send all data driving chip to by the mode of serial connection, and power supply signal also can in position locate to offer data driving chip.
More particularly, first flexible printed circuit 232 and the 3rd flexible printed circuit 236 lay respectively at the two ends (as high order end and low order end) of printed circuit board (PCB) 220, and second flexible printed circuit 234 then is positioned at the centre position of printed circuit board (PCB) 220.Second flexible printed circuit 234 transmits power supply signal and data-signal respectively to being positioned at first crowd of its both sides and the second crowd of data driving chip 212a and 212b.Moreover first flexible printed circuit 232 preferably can transmit power supply signal to the first crowd data driving chip 212a simultaneously, and second flexible printed circuit 234 preferably can transmit power supply signal to the second crowd data driving chip 212b simultaneously.Therefore, each group data driving chip 212a and 212b all can obtain providing of power supply signal at its two ends, so can prevent the problem that descends because of the long voltage that causes in serial connection path.
Fig. 3 shows the synoptic diagram of the display module of another preferred embodiment of the present invention.Display module 300 comprises a display panel 310, a printed circuit board (PCB) 320, a plurality of data driving chip 312, one first flexible printed circuit 332 and at least one second flexible printed circuit 334.Data driving chip 312 is to be arranged on the display panel 310 in the serial connection mode.First flexible printed circuit 332 is arranged between the end of described data driving chip 312 of printed circuit board (PCB) 320 and serial connection, in order to data signal to data driving chip 312.Second flexible printed circuit 334 is arranged between the described data driving chip 312 of printed circuit board (PCB) 320 and serial connection, in order to transmit power supply signal to data driving chip 312.
Usually have time schedule controller, gamma voltage generator and DC-DC converter on the printed circuit board (PCB) 320, wherein in order to produce data-signals such as clock signal and gamma voltage, DC-DC converter then is responsible for providing power supply signal respectively for time schedule controller and gamma voltage generator.This preferred embodiment is in position to provide at least one second flexible printed circuit 334 that power supply signal is sent to the data driving chip 312 of serial connection, so prevents the problem that descends because of the long voltage that causes in serial connection path.In addition, first flexible printed circuit 332 preferably also can transmit power supply signal simultaneously to data driving chip 312.
Fig. 4 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration of explanation serial connection connecting line on the glass substrate of display panel.Data driving chip 412a has many to signal contact 422a, and each lays respectively at the two ends of data driving chip 412a to signal contact 422a.Similarly, data driving chip 412b also has many to signal contact 422b, and each lays respectively at the two ends of data driving chip 412b to signal contact 422b.In this preferred embodiment, have many serial connection connecting lines 432 on the display panel 410, in order to corresponding signal contact 422a and the 422b of serial connection data driving chip 412a and 412b.That is to say that adjacent signal contact 422a and 422b can be connected by the serial connection connecting line 432 of display panel 410 according to its signal corresponding relation, so be connected in series data driving chip 412a and 412b and transmit to carry out signal.
In addition, above-mentioned signal contact 422a and 422b can comprise power supply signal contact and data-signal contact.For instance, the power supply signal contact can be signal contacts such as AGND, DGND, AVDD, DVDD, VCOM, and the data-signal contact then can be Gamma, Control Signal, signal contacts such as Data Signal, Clock.Signal contact shown in the following drawings also prolongs with these signal contact symbology.
Fig. 5 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the internal wiring configuration of explanation data driving chip.Data driving chip 512 has many to signal contact 522, and each lays respectively at the two ends of data driving chip 512 to signal contact 522.In this preferred embodiment, each can make its electrical connection by data driving chip 512 to signal contact 522.That is to say, each that is positioned at data driving chip 512 two ends is to signal contact 522, can be electrically connected by the internal wiring 542 of data driving chip 512, make signal to be passed to its opposite side, for being connected in series with next data driving chip from a side of data driving chip 512.
Fig. 6 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration of auxiliary connecting line on the glass substrate of explanation display panel.Data driving chip 612 has many to signal contact 622, and each lays respectively at the two ends of data driving chip 612 to signal contact 622.In this preferred embodiment, display panel 610 has many auxiliary connecting lines 652, and each that is electrically connected data driving chip 612 respectively is to signal contact 622.
That is to say, display panel 610 is being assisted connecting line 652 corresponding to providing the position between the signal contact 622 together, so make signal to be passed to its opposite side, for being connected in series with next data driving chip from a side of data driving chip 612.Therefore, except chip internal circuit shown in Figure 5, auxiliary connecting line shown in Figure 6 preferably can provide another signal serial connection path in chip exterior, guaranteeing that the signal contact 622 that is positioned at same chip both sides can successfully be serially connected, and the problem of avoiding signal to be consumed or make mistakes at chip internal.
Fig. 7 shows the synoptic diagram of a preferred embodiment of the present invention, in order to the configuration mode of explanation test pin.Data driving chip 712a has signal contact 722a, and data driving chip 712b also has signal contact 722b, and is electrically connected mutually by serial connection connecting line 732a and 732b between signal contact 722a and the 722b.According to this preferred embodiment, display panel 710 has at least one test pin 734a, is disposed between the adjacent two data driving chip 712a and 712b, and is electrically connected on serial connection connecting line 732a, for the usefulness of testing.Perhaps, when being connected in series the wider width of connecting line, for example be used for transmitting the serial connection connecting line 732b of power supply signal, test pin 734b can directly be disposed on the serial connection connecting line 732b of broad.
Fig. 8 shows the synoptic diagram of a preferred embodiment of the present invention, sets the configuration mode of pin in order to explanation.Data driving chip 812 has many to signal contact 822, and display panel 810 has at least one setting pin 862, be electrically connected on described signal contact 822 one of them, directly be set to desired current potential in order to the current potential of the signal contact 822 that will be connected.
In sum, above preferred embodiment can use first flexible printed circuit to be responsible for data signal, and in position locates to use other second flexible printed circuit to replenish power supply signal is provided.Therefore, printed circuit board (PCB) does not need with display panel isometric, and flexible printed circuit does not need to be disposed at from the beginning to the end between printed circuit board (PCB) and the display panel yet, can reduce the area of printed circuit board (PCB) and the number of flexible printed circuit effectively, so raising is made qualification rate and is reduced production costs.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; those skilled in the art can be used for a variety of modifications and variations under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with the application's claim.
Claims (8)
1. display module comprises:
One printed circuit board (PCB);
One display panel;
One first group of data driving chip is arranged on this display panel in the serial connection mode;
One second group of data driving chip is arranged on this display panel in the serial connection mode;
One first flexible printed circuit is arranged between one first end of this printed circuit board (PCB) and these first group of data driving chip, in order to data signal to these first group of data driving chip;
One second flexible printed circuit, be arranged between one first end of one second end of this printed circuit board (PCB), these first group of data driving chip and these second group of data driving chip, in order to transmitting power supply signal to these first group of data driving chip, and data signal is to these second group of data driving chip; And
One the 3rd flexible printed circuit is arranged between one second end of this printed circuit board (PCB) and these second group of data driving chip, in order to transmit power supply signal to these second group of data driving chip.
2. display module as claimed in claim 1, wherein this first flexible printed circuit and the 3rd flexible printed circuit lay respectively at the two ends of this printed circuit board (PCB), and this second flexible printed circuit is positioned in the middle of this printed circuit board (PCB).
3. display module as claimed in claim 1, wherein each data driving chip has manyly to signal contact, and each lays respectively at the two ends of this data driving chip to signal contact; And
This display panel has many serial connection connecting lines, in order to be connected in series the corresponding signal contact of described data driving chip.
4. display module as claimed in claim 3, wherein each can make its electrical connection by this data driving chip to signal contact.
5. display module as claimed in claim 3, wherein this display panel has many auxiliary connecting lines, and each that is electrically connected this data driving chip respectively is to signal contact.
6. display module as claimed in claim 3, wherein this display panel has at least one test pin, be disposed between the two adjacent data driving chip, and be electrically connected on described serial connection connecting line one of them.
7. display module as claimed in claim 3, wherein this display panel has at least one test pin, directly is disposed on this serial connection connecting line.
8. display module as claimed in claim 3, wherein this display panel has at least one setting pin, be electrically connected on described signal contact one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101087281A CN100495492C (en) | 2006-08-10 | 2006-08-10 | Display panel module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101087281A CN100495492C (en) | 2006-08-10 | 2006-08-10 | Display panel module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1909033A CN1909033A (en) | 2007-02-07 |
| CN100495492C true CN100495492C (en) | 2009-06-03 |
Family
ID=37700133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101087281A Expired - Fee Related CN100495492C (en) | 2006-08-10 | 2006-08-10 | Display panel module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100495492C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655615B (en) * | 2008-08-21 | 2015-04-29 | 北京京东方光电科技有限公司 | Equipment and method for introducing test voltage |
| KR102057286B1 (en) * | 2013-02-21 | 2019-12-19 | 삼성디스플레이 주식회사 | Organic Light Emitting Display |
| CN106023915B (en) * | 2016-05-26 | 2018-08-07 | 深圳市华星光电技术有限公司 | Control circuit and display device |
| TWI680444B (en) * | 2018-05-30 | 2019-12-21 | 友達光電股份有限公司 | Display device and method of manufacturing thereof |
| KR20210011550A (en) * | 2019-07-22 | 2021-02-02 | 삼성디스플레이 주식회사 | Display device |
-
2006
- 2006-08-10 CN CNB2006101087281A patent/CN100495492C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1909033A (en) | 2007-02-07 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090603 |