CN206975997U - A kind of TFT LCDs with signal delay circuit - Google Patents
A kind of TFT LCDs with signal delay circuit Download PDFInfo
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- CN206975997U CN206975997U CN201720729753.5U CN201720729753U CN206975997U CN 206975997 U CN206975997 U CN 206975997U CN 201720729753 U CN201720729753 U CN 201720729753U CN 206975997 U CN206975997 U CN 206975997U
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- delay circuit
- signal delay
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- display screens
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- Liquid Crystal Display Device Control (AREA)
Abstract
The utility model provides a kind of TFT LCDs with signal delay circuit, including TFT LCD displays, COG IC chips, FPC connector, LED backlight and signal delay circuit.Described three COG IC chips of TFT LCD displays bonding, three described COG IC chips are connected by FPC connector with TFT LCD displays, the TFT LCD displays are assemblied in LED backlight, signal delay circuit is loaded on the FPC connector, the sequential of TFT liquid crystal modules is inputed to for changing.Described COG IC chips are connected by FPC connector with outside MCU mainboards, simultaneously, signal delay circuit is loaded on FPC connector with outside MCU mainboards and TFT LCD displays to be connected, and then adjust the signal sequence of input TFT liquid crystal modules, TFT LCDs is set to be applied to the complete machine application of different sequence circuits, so as to avoid the complete machine software of client from adjusting again, complete machine development cost is saved.
Description
Technical field
It the utility model is related to a kind of TFT products applications technical field, it is more particularly to a kind of with signal delay circuit
TFT LCDs.
Background technology
Display screen is the carrier that TFT-LCD reduces various colors, and the color specifically reduced is aobvious by being inputted under certain sequential
The drive signal of display screen defines, and the principle of TFT-LCD drivings is the relation of voltage and transmitance.Display under drive control,
It is the essence of TFT-LCD point optical effects.TFT-LCD drive circuits include power circuit, sequential control circuit, ash stage circuit,
Data drive circuit, scan drive circuit and system interface.Signal from system, driven by system interface to TFT-LCD
Circuit provides various real datas and timing control signal.It is raw after these data and a part for signal are transferred to power circuit
Into the supply voltage needed for the work of other circuits, and liquid crystal deflection reference voltage Vcom.The part of these data and signal
After being transferred to sequential control circuit, generation data drive circuit, the work schedule of scan drive circuit, and TFT-LCD's are complete
Body sequential.And generally some clients set not malleable, and client has the whole of different editions sometimes for the sequential of complete machine
Machine is desirable for same TFT products, therefore in order that a TFT products are applied to different complete machine applications, does not change in complete machine
In the case of becoming sequential, delay or negater circuit can only be increased on TFT products.
The content of the invention
In order to solve problem described in background technology, the utility model provides a kind of TFT liquid with signal delay circuit
Crystal display screen, on the premise of complete machine sequential is not changed, by increasing signal delay circuit in TFT liquid crystal display die sets, and
Change input timing, TFT LCDs is applied to the complete machine application of different sequence circuits, so as to avoid client
Complete machine software adjust again, save complete machine development cost.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of TFT LCDs with signal delay circuit, including TFT-LCD display screens, COG IC chips, FPC
Connector, LED backlight and signal delay circuit.
Described three COG IC chips of TFT-LCD display screens bonding, described three COG IC chips are connected by FPC
Device is connected with TFT-LCD display screens, and the TFT-LCD display screens are assemblied in LED backlight, are loaded on the FPC connector
Signal delay circuit, the sequential of TFT liquid crystal modules is inputed to for changing.
Described COG IC chips are connected by FPC connector with outside MCU mainboards, meanwhile, letter is loaded on FPC connector
Number delay circuit is connected with outside MCU mainboards and TFT-LCD display screens, and then when adjusting the signal of input TFT liquid crystal modules
Sequence.
Described signal delay circuit uses 74HC245 chips, for the rgb signal that is delayed, is not adjusted in complete machine sequential
In the case of, time delayed signal inputs to TFT liquid crystal modules, makes it possible to show correct data.
The described TFT-LCD display screens are a kind of conventional TFT display screens, 8 inches, resolution ratio 800*600.
LED backlight is set below described TFT-LCD display screens, can worked at night.
Three described COG IC chips are bound to the upper surface of TFT-LCD display screens.
Compared with prior art, the beneficial effects of the utility model are：
A kind of TFT LCDs with signal delay circuit of the present utility model, before complete machine sequential is not changed
Put, by increasing signal delay circuit in TFT liquid crystal display die sets, and change input timing, make TFT LCDs
The complete machine application of different sequence circuits can be applied to, so as to avoid the complete machine software of client from adjusting again, complete machine is saved and open
Send out cost.
Brief description of the drawings
Fig. 1 is a kind of TFT liquid-crystal displaying screen structure schematic diagrames with signal delay circuit of the present utility model；
Fig. 2 is signal delay circuit attachment structure schematic diagram of the present utility model；
Fig. 3 is TFT-LCD display screens wiring pin definitions figure of the present utility model；
Fig. 4 is the T1 chip wiring pin definitions figures of signal delay circuit of the present utility model；
Fig. 5 is the T2 chip wiring pin definitions figures of signal delay circuit of the present utility model；
Fig. 6 is the T3 chip wiring pin definitions figures of signal delay circuit of the present utility model；
Fig. 7 is MCU mainboard chips wiring pin definitions figure of the present utility model.
Embodiment
Embodiment provided by the utility model is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of TFT LCDs with signal delay circuit, it is characterised in that including TFT-LCD
Display screen 1, COG IC chips 2, FPC connector 3, LED backlight 4 and signal delay circuit 5.
Described TFT-LCD display screens 1 bonding, three COG IC chips 2, described three COG IC chips 2 pass through FPC
Connector 3 is connected with TFT-LCD display screens 1, and the TFT-LCD display screens 1 are assemblied in LED backlight 4, the FPC connections
Signal delay circuit 5 is loaded on device 3, the sequential of TFT liquid crystal modules is inputed to for changing.
As shown in Fig. 2 described COG IC chips 2 are connected by FPC connector 3 with outside MCU mainboards, meanwhile, FPC connects
Connect loading signal delay circuit 5 on device 3 with outside MCU mainboards and TFT-LCD display screens 1 to be connected, and then adjust input TFT liquid
The signal sequence of brilliant module.
Described signal delay circuit 5 uses 74HC245 chips, for the rgb signal that is delayed, is not adjusted in complete machine sequential
In the case of, time delayed signal inputs to TFT liquid crystal modules, makes it possible to show correct data.
The described TFT-LCD display screens 1 are a kind of conventional TFT display screens, 8 inches, resolution ratio 800*600.
The described lower section of TFT-LCD display screens 1 sets LED backlight 4, can work at night.
Three described COG IC chips 2 are bound to the upper surface of TFT-LCD display screens 1.
The glass step lower section of the TFT-LCD display screens 1 and right side step three COG IC chips 2 of common bonding.
The fit beneath LED backlights 4 of TFT-LCD 1 of upset.
The LED backlight 4 uses sidepiece ray structure, and module brightness ensures in 1000cd/m2。
As shown in fig. 3 to 7, the T1 chips of signal delay circuit 5 are connected by B0-B7 pins with the pin of MCU mainboard chips
Connect, be connected by DB0-DB7 with the pin of TFT-LCD display screens.
The T2 chips of signal delay circuit 5 are connected by R0-R7 pins with the pin of MCU mainboard chips, pass through DR0-
DR7 is connected with the pin of TFT-LCD display screens.
The T1 chips of signal delay circuit 5 are connected by G0-G7 pins with the pin of MCU mainboard chips, pass through DG0-
DG7 is connected with the pin of TFT-LCD display screens.
Above example is implemented under premised on technical solutions of the utility model, gives detailed embodiment
With specific operating process, but the scope of protection of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (5)
1. a kind of TFT LCDs with signal delay circuit, it is characterised in that including TFT-LCD display screens, COG IC
Chip, FPC connector, LED backlight and signal delay circuit；
Described three COG IC chips of TFT-LCD display screens bonding, described three COG IC chips by FPC connector with
TFT-LCD display screens are connected, and the TFT-LCD display screens are assemblied in LED backlight, and signal is loaded on the FPC connector
Delay circuit, the sequential of TFT liquid crystal modules is inputed to for changing；
Described COG IC chips are connected by FPC connector with outside MCU mainboards, meanwhile, signal is loaded on FPC connector and is prolonged
When circuit be connected with outside MCU mainboards and TFT-LCD display screens, and then adjust input TFT liquid crystal modules signal sequence.
2. a kind of TFT LCDs with signal delay circuit according to claim 1, it is characterised in that described
Signal delay circuit use 74HC245 chips, for the rgb signal that is delayed, in the case where complete machine sequential does not adjust, delay
Signal inputs to TFT liquid crystal modules, makes it possible to show correct data.
3. a kind of TFT LCDs with signal delay circuit according to claim 1, it is characterised in that described
The TFT-LCD display screens be a kind of conventional TFT display screens, 8 inches, resolution ratio 800*600.
4. a kind of TFT LCDs with signal delay circuit according to claim 1, it is characterised in that described
TFT-LCD display screens below set LED backlight, can work at night.
5. a kind of TFT LCDs with signal delay circuit according to claim 1, it is characterised in that described
Three COG IC chips be bound to the upper surfaces of TFT-LCD display screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720729753.5U CN206975997U (en) | 2017-06-22 | 2017-06-22 | A kind of TFT LCDs with signal delay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720729753.5U CN206975997U (en) | 2017-06-22 | 2017-06-22 | A kind of TFT LCDs with signal delay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975997U true CN206975997U (en) | 2018-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720729753.5U Active CN206975997U (en) | 2017-06-22 | 2017-06-22 | A kind of TFT LCDs with signal delay circuit |
Country Status (1)
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| CN (1) | CN206975997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447454A (en) * | 2018-02-23 | 2018-08-24 | 广州视源电子科技股份有限公司 | A kind of display screen sequential control method, device, terminal device and storage medium |
| CN109584817A (en) * | 2018-11-16 | 2019-04-05 | 深圳市鑫洪泰电子科技有限公司 | The LCD liquid crystal display die set of display is kept after a kind of power down |
-
2017
- 2017-06-22 CN CN201720729753.5U patent/CN206975997U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447454A (en) * | 2018-02-23 | 2018-08-24 | 广州视源电子科技股份有限公司 | A kind of display screen sequential control method, device, terminal device and storage medium |
| CN109584817A (en) * | 2018-11-16 | 2019-04-05 | 深圳市鑫洪泰电子科技有限公司 | The LCD liquid crystal display die set of display is kept after a kind of power down |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.288, Yueling Road, Lishan District, Anshan City, Liaoning Province, 114031 Patentee after: Yashi Optoelectronics (Group) Co.,Ltd. Address before: 114031 No.288, Yueling Road, Lishan District, Anshan City, Liaoning Province Patentee before: ANSHAN YES OPTOELECTRONICS DISPLAY Co.,Ltd. |