CN204044458U - A kind of LCDs having transformer - Google Patents
A kind of LCDs having transformer Download PDFInfo
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- CN204044458U CN204044458U CN201420542027.9U CN201420542027U CN204044458U CN 204044458 U CN204044458 U CN 204044458U CN 201420542027 U CN201420542027 U CN 201420542027U CN 204044458 U CN204044458 U CN 204044458U
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Abstract
The utility model discloses a kind of LCDs having transformer, comprise motherboard power supply interface, flexible circuit winding displacement, booster circuit, liquid crystal integrated circuit, liquid crystal display, wherein, flexible circuit winding displacement one end is connected with motherboard power supply interface, one end is connected with liquid crystal integrated circuit, for the confession of mainboard is electrically communicated to liquid crystal integrated circuit, make it work; Liquid crystal integrated circuit is connected to liquid crystal display, normally lights for driving liquid crystal displays; Flexible circuit winding displacement also comprises booster circuit, and booster circuit is for improving the voltage on flexible circuit winding displacement.The utility model provides by using built-in booster circuit traditional in external booster circuit replacement liquid crystal display, improves boosting effect, makes the driving of large scale liquid crystal display module and gray scale display effect become possibility.
Description
Technical field
The utility model relates to liquid crystal display, especially, relates to a kind of LCDs having transformer.
Background technology
At present, liquid crystal display industry majority uses chip directly to bind the technique of glass, the LCD MODULE of built-in direct current-direct current voltage boost circuit, directly be connected with client's mainboard by flexible PCB, such client only needs to increase several boost capacitor, and drive integrated circult can produce the high voltage driving LCD MODULE.But when using large scale liquid crystal display module or customer requirement to use gray scale display, built-in booster circuit is not enough due to boost capability, cannot drive large scale liquid crystal display module and gray scale display effect.
Not enough for booster circuit boost capability built-in in prior art, the problem of large scale liquid crystal display module and gray scale display effect cannot be driven, not yet have effective solution at present.
Utility model content
Not enough for booster circuit boost capability built-in in prior art, the problem of large scale liquid crystal display module and gray scale display effect cannot be driven, the purpose of this utility model is to propose a kind of LCDs having transformer, boost output voltage ability can be improved, large scale liquid crystal display module and gray scale display effect can be driven, to meet actual production living needs.
Based on above-mentioned purpose, the technical scheme that the utility model provides is as follows:
According to an aspect of the present utility model, provide a kind of LCDs having transformer.
Motherboard power supply interface, flexible circuit winding displacement, booster circuit, liquid crystal integrated circuit, liquid crystal display is comprised according to the LCDs of transformer that has that the utility model provides, wherein, flexible circuit winding displacement one end is connected with motherboard power supply interface, one end is connected with liquid crystal integrated circuit, for the confession of mainboard is electrically communicated to liquid crystal integrated circuit, make it work; Liquid crystal integrated circuit is connected to liquid crystal display, normally lights for driving liquid crystal displays; Flexible circuit winding displacement also comprises booster circuit, and booster circuit is connected with motherboard power supply interface, liquid crystal integrated circuit, for improving the voltage on flexible circuit winding displacement by flexible circuit winding displacement.
Especially, booster circuit is direct current-direct current voltage boost circuit.
Further, the V0-V4 pin of motherboard power supply interface uses flexible circuit winding displacement to be connected to V0-V4 pin corresponding to liquid crystal integrated circuit respectively; SCL, the SDA of motherboard power supply interface ,/RES pin use flexible circuit winding displacement to be connected to two SCL corresponding to liquid crystal integrated circuit, three SDA, one/RES pin respectively; The VOUT that the VOUT pin of motherboard power supply interface is connected to booster circuit through a resistance R6 holds 7 the VOUT pins corresponding with liquid crystal integrated circuit; The vdd terminal of booster circuit uses flexible circuit winding displacement to be connected to the VDD pin of liquid crystal integrated circuit.
Further, booster circuit comprises a non-programmed chip CAT4137, and wherein, the SW pin of CAT4137 is connected to the anode of diode ZD1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R1, resistance R2, electric capacity C6; / SHDN pin is connected to the anode of polar capacitor C5 and one end of resistance R5; VDD pin is connected to the anode of polar capacitor C4, the other end of inductance L 1, the other end of resistance R5 and the vdd terminal of booster circuit; The anode of the other end of resistance R1, one end of electric capacity C7, polar capacitor C8 is connected to the VOUT end of booster circuit; The other end of resistance R2 is connected to one end of resistance R3, R4; The negativing ending grounding of the other end of resistance R3, R4, the other end of electric capacity C6, C7, polar capacitor C4, C5, C8.
Further, booster circuit comprises a non-programmed chip LT1615, and wherein, the SW pin of LT1615 is connected to the anode of stabilivolt DIO1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R7, resistance R8, electric capacity C6; / SHDN pin is connected to one end of resistance R9; VDD pin is connected to one end of electric capacity C7, C8, the other end of inductance L 1, the other end of resistance R9 and the vdd terminal of booster circuit; The anode of polar capacitor E1, the anode of electric capacity C5, C6, one end of resistance R7, the negative terminal of stabilivolt DIO1 are connected to the VOUT end of booster circuit; The negativing ending grounding of the other end of electric capacity C5, C7, C8, the other end of resistance R8, polar capacitor E1.
As can be seen from above, the technical scheme that the utility model provides is by using built-in booster circuit traditional in external booster circuit replacement liquid crystal display, boosting effect has exceeded the boosting effect of built-in booster circuit, makes the driving of large scale liquid crystal display module and gray scale display effect become possibility.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural blast view having the LCDs of transformer according to the utility model embodiment;
Fig. 2 is the circuit diagram according to the flexible circuit winding displacement in the utility model embodiment and booster circuit;
Fig. 3 is the circuit diagram according to the flexible circuit winding displacement in another embodiment of the utility model and booster circuit.
Embodiment
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with the accompanying drawing in the utility model embodiment, to the technical scheme in the utility model embodiment carry out further clear, complete, describe in detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
According to embodiment of the present utility model, provide a kind of LCDs having transformer.
As shown in Figure 1, motherboard power supply interface 1, flexible circuit winding displacement 2, booster circuit 3, liquid crystal integrated circuit 4, liquid crystal display 5 is comprised according to the LCDs of transformer that has that embodiment of the present utility model provides, wherein, flexible circuit winding displacement 2 one end is connected with motherboard power supply interface 1, one end is connected with liquid crystal integrated circuit 4, for the confession of mainboard is electrically communicated to liquid crystal integrated circuit, make it work; Liquid crystal integrated circuit 4 is connected to liquid crystal display 5, normally lights for driving liquid crystal displays 5; Flexible circuit winding displacement 2 also comprises booster circuit 3, and booster circuit 3 is connected with motherboard power supply interface 1, liquid crystal integrated circuit 4 by flexible circuit winding displacement 2, for improving the voltage on flexible circuit winding displacement 2.
When built-in driving boost capability deficiency, generally mainboard do not provide the high voltage driving large scale liquid crystal display module and gray scale display effect yet, the utility model adopts external booster circuit 3 to improve boost capability.Built-in driving is due to integrated circuit in LCDs 4 limited space, the chip of the universal standard cannot be used to boost, therefore higher level can not be boosted to, external booster circuit 3 disclosed in the utility model is then placed in flexible circuit winding displacement 2, spatially very well-to-do in circuit design, limit without volume.External booster circuit 3 mode be placed on flexible circuit winding displacement 2 is meaned the circuit all needed for boosting is all comprised in flexible circuit winding displacement 2, do not need to reequip to motherboard power supply interface 1 and liquid crystal display 5, when needing when there being user to use large scale liquid crystal display or gray scale display effect, only need provide for simple replacement of winding displacement 2, do not need to change display screen 5, there is good versatility with compatible.
Wherein, booster circuit 3 is direct current-direct current voltage boost circuit.The input power of the power supply that usual motherboard power supply interface 1 supplies and liquid crystal integrated circuit 4 is all direct current internal operating voltages VDD.
As shown in Figure 2 and Figure 3, flexible circuit winding displacement 2 is for connecting motherboard power supply interface 1, booster circuit 3 and liquid crystal integrated circuit 4.Particularly, the V0-V4 pin of motherboard power supply interface 1 uses flexible circuit winding displacement 2 to be connected to the V0-V4 pin of liquid crystal integrated circuit 4 correspondence respectively; SCL, the SDA of motherboard power supply interface 1 ,/RES pin use flexible circuit winding displacement 2 to be connected to two SCL of liquid crystal integrated circuit 4 correspondence, three SDA, one/RES pin respectively; The VOUT pin of motherboard power supply interface 1 is connected to the VOUT end of booster circuit 3 through a resistance R6, the VOUT end of booster circuit 3 uses 7 VOUT pins that flexible circuit winding displacement 2 is corresponding with liquid crystal integrated circuit 4 simultaneously; The vdd terminal of booster circuit 3 uses flexible circuit winding displacement 2 to be connected to the VDD pin of liquid crystal integrated circuit 4.Above-mentioned winding displacement is flexible circuit winding displacement 2 cabling outside booster circuit 3, and wherein, biasing circuit V0-V4 and part Enable Pin SCL, SDA ,/RES are direct transferring not by booster circuit 3, and this part cabling only plays signal transmission effect, does not need boosting.
Shown in Fig. 2 is the circuit diagram of booster circuit in an embodiment.Booster circuit 3 comprises a non-programmed chip CAT4137, and wherein, the SW pin of CAT4137 is connected to the anode of diode ZD1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R1, resistance R2, electric capacity C6; / SHDN pin is connected to the anode of polar capacitor C5 and one end of resistance R5; VDD pin is connected to the anode of polar capacitor C4, the other end of inductance L 1, the other end of resistance R5 and the vdd terminal of booster circuit; The anode of the other end of resistance R1, one end of electric capacity C7, polar capacitor C8 is connected to the VOUT end of booster circuit; The other end of resistance R2 is connected to one end of resistance R3, R4; The negativing ending grounding of the other end of resistance R3, R4, the other end of electric capacity C6, C7, polar capacitor C4, C5, C8.
Shown in Fig. 3 is the circuit diagram of booster circuit in another embodiment.Booster circuit 3 comprises a non-programmed chip LT1615, and wherein, the SW pin of LT1615 is connected to the anode of stabilivolt DIO1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R7, resistance R8, electric capacity C6; / SHDN pin is connected to one end of resistance R9; VDD pin is connected to one end of electric capacity C7, C8, the other end of inductance L 1, the other end of resistance R9 and the vdd terminal of booster circuit; The anode of polar capacitor E1, the anode of electric capacity C5, C6, one end of resistance R7, the negative terminal of stabilivolt DIO1 are connected to the VOUT end of booster circuit; The negativing ending grounding of the other end of electric capacity C5, C7, C8, the other end of resistance R8, polar capacitor E1.
In sum, by means of technique scheme of the present utility model, by using built-in booster circuit traditional in external booster circuit replacement liquid crystal display, booster circuit obtains larger physical space and significantly boosts in order to lay chip, improve boosting effect, make the driving of large scale liquid crystal display module and gray scale display effect become possibility; In addition, external booster circuit is placed on flexible circuit winding displacement completely, liquid crystal display circuit and motherboard power supply interface are standard interface, not needing other hardware in order to drive large scale liquid crystal display module and gray scale display effect to change outside flexible circuit winding displacement, there is good versatility with compatible.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. one kind has the LCDs of transformer, it is characterized in that, comprise motherboard power supply interface (1), flexible circuit winding displacement (2), booster circuit (3), liquid crystal integrated circuit (4), liquid crystal display (5), wherein, described flexible circuit winding displacement (2) one end is connected with described motherboard power supply interface (1), one end is connected with described liquid crystal integrated circuit (4), for the confession of mainboard is electrically communicated to liquid crystal integrated circuit, make it work; Described liquid crystal integrated circuit (4) is connected to liquid crystal display (5), normally lights for driving liquid crystal displays (5); Described flexible circuit winding displacement (2) also comprises booster circuit (3), described booster circuit (3) is connected with motherboard power supply interface (1), liquid crystal integrated circuit (4) by flexible circuit winding displacement (2), for improving the voltage on described flexible circuit winding displacement (2).
2. a kind of LCDs having transformer according to claim 1, is characterized in that, described booster circuit (3) is direct current-direct current voltage boost circuit.
3. a kind of LCDs having transformer according to claim 2, it is characterized in that, the V0-V4 pin of described motherboard power supply interface (1) uses flexible circuit winding displacement (2) to be connected to V0-V4 pin corresponding to described liquid crystal integrated circuit (4) respectively; SCL, the SDA of described motherboard power supply interface (1) ,/RES pin use flexible circuit winding displacement (2) to be connected to described liquid crystal integrated circuit (4) corresponding two SCL, three SDA, one/RES pin respectively; The VOUT that the VOUT pin of described motherboard power supply interface (1) is connected to described booster circuit (3) through a resistance R6 holds 7 the VOUT pins corresponding with described liquid crystal integrated circuit (4); The vdd terminal of described booster circuit (3) uses flexible circuit winding displacement (2) to be connected to the VDD pin of described liquid crystal integrated circuit (4).
4. a kind of LCDs having transformer according to claim 3, it is characterized in that, described booster circuit (3) comprises a non-programmed chip CAT4137, and wherein, the SW pin of CAT4137 is connected to the anode of diode ZD1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R1, resistance R2, electric capacity C6; / SHDN pin is connected to the anode of polar capacitor C5 and one end of resistance R5; VDD pin is connected to the anode of polar capacitor C4, the other end of inductance L 1, the other end of resistance R5 and the vdd terminal of booster circuit; The anode of the other end of resistance R1, one end of electric capacity C7, polar capacitor C8 is connected to the VOUT end of booster circuit; The other end of resistance R2 is connected to one end of resistance R3, R4; The negativing ending grounding of the other end of resistance R3, R4, the other end of electric capacity C6, C7, polar capacitor C4, C5, C8.
5. a kind of LCDs having transformer according to claim 3, it is characterized in that, described booster circuit (3) comprises a non-programmed chip LT1615, and wherein, the SW pin of LT1615 is connected to the anode of stabilivolt DIO1 and one end of inductance L 1; GND pin ground connection; FB pin is connected to one end of resistance R7, resistance R8, electric capacity C6; / SHDN pin is connected to one end of resistance R9; VDD pin is connected to one end of electric capacity C7, C8, the other end of inductance L 1, the other end of resistance R9 and the vdd terminal of booster circuit; The anode of polar capacitor E1, the anode of electric capacity C5, C6, one end of resistance R7, the negative terminal of stabilivolt DIO1 are connected to the VOUT end of booster circuit; The negativing ending grounding of the other end of electric capacity C5, C7, C8, the other end of resistance R8, polar capacitor E1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542027.9U CN204044458U (en) | 2014-09-16 | 2014-09-16 | A kind of LCDs having transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542027.9U CN204044458U (en) | 2014-09-16 | 2014-09-16 | A kind of LCDs having transformer |
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| Publication Number | Publication Date |
|---|---|
| CN204044458U true CN204044458U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542027.9U Expired - Fee Related CN204044458U (en) | 2014-09-16 | 2014-09-16 | A kind of LCDs having transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997743A (en) * | 2017-06-02 | 2017-08-01 | 江苏久正光电有限公司 | A kind of test device of Thin Film Transistor-LCD |
-
2014
- 2014-09-16 CN CN201420542027.9U patent/CN204044458U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997743A (en) * | 2017-06-02 | 2017-08-01 | 江苏久正光电有限公司 | A kind of test device of Thin Film Transistor-LCD |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 065001 No. 2, road 36, economic and Technological Development Zone, Hebei, Langfang Patentee after: Ji ya (Langfang) electronic Limited by Share Ltd Address before: 065001 No. 2, road 36, economic and Technological Development Zone, Hebei, Langfang Patentee before: Hebei Jiya Electronics Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20190916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |