CN204463792U - Liquid crystal module drives regulator - Google Patents
Liquid crystal module drives regulator Download PDFInfo
- Publication number
- CN204463792U CN204463792U CN201520102739.3U CN201520102739U CN204463792U CN 204463792 U CN204463792 U CN 204463792U CN 201520102739 U CN201520102739 U CN 201520102739U CN 204463792 U CN204463792 U CN 204463792U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- resistance
- pad
- crystal module
- reserves
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a kind of liquid crystal module and drive regulator, comprise that the first resistance reserves pad, the second resistance reserves pad; One end that described first resistance reserves pad is connected with liquid crystal display analog power voltage input end, and the other end that described first resistance reserves pad is connected with one end that described second resistance reserves pad, and described second resistance reserves the other end ground connection of pad; Described first resistance is reserved pad and described second resistance and is reserved one end that pad is connected and be connected with the liquid crystal deflecting element common port voltage input end of liquid crystal module inside.The utility model structure is simple, highly versatile, has widened the compatibility of liquid crystal module, has facilitated the debugging efforts of liquid crystal module sample stage, and save production cost.
Description
[technical field]
The utility model relates to liquid crystal module technical field, and particularly a kind of liquid crystal module drives regulator.
[background technology]
Liquid crystal module comprises liquid crystal display and back light unit.The control of liquid crystal display luminous point display duration relies on picture element signal by a Switch Controller capacitor charging, the distortion of the electric field controls liquid crystal molecule relying on capacitance voltage to be formed, the voltage at control capacitance two ends maintains for a long time and just can control luminous point and light for a long time, when controlling each electric field by the luminous point of pixel, a switch must be installed, this switch is exactly thin film field-effect switch transistor T FT (Thin Film Transistor), often by 20 milliseconds by image by TFT to capacitor charge and discharge once, just can reach the object gathering liquid crystal display displays images signal.In each cycle, TFT will open once, to carry out discharge and recharge once to electric capacity.Generally the voltage opening TFT is designated as VGH, the voltage of closing TFT is designated as VGL.VCOM refers to liquid crystal deflecting element common port voltage, and VCOM is the combination of direct current or interchange and direct current is then determined by the character of liquid crystal display, and digital liquid crystal screen is generally direct current.AVDD refers to liquid crystal display analog power voltage (Power supply for analog circuits).
AVDD, VGH, VGL, VCOM are several groups of very important voltages that TFT digital liquid crystal screen drives.A lot of manufacturer is because starting material type selecting or the upper difference of making, and these several groups of voltages have certain deviation, but the span of these several groups of voltages is as follows under normal circumstances:
AVDD voltage range is+9V-~+11V;
VGH voltage range is+14V-~+19V;
VGL voltage range is-10V ~-5V;
VCOM voltage range is+3V ~+6V.
The deviation of VCOM voltage directly has influence on the contrast of liquid crystal display, the most direct on the impact of liquid crystal display effect, VGH, VGL, AVDD are relatively little on the impact of liquid crystal display, because during VGH, VGL difference 2 ~ 3V, liquid crystal display display effect is more or less the same, and AVDD major effect is to GAMMA correcting circuit.
The different requirement of liquid crystal module to voltage parameter of measure-alike but starting material is different, and the VCOM voltage of traditional liquid crystal module is all directly supplied by mainboard, if require the adaptive multiple mainboard of one piece of liquid crystal module, this adaptation just becomes very complicated.If therefore liquid crystal module can adaptive different mainboard easily, then can reach that structure is simple, highly versatile, saving production cost, increase the effects such as the market competitiveness.
[utility model content]
Based on this, the utility model provides a kind of liquid crystal module to drive regulator, can make liquid crystal module adaptive different mainboard easily, improves the versatility of liquid crystal module, reduces production cost.
The content of the utility model embodiment is as follows:
A kind of liquid crystal module drives regulator, comprises that the first resistance reserves pad, the second resistance reserves pad; One end that described first resistance reserves pad is connected with liquid crystal display analog power voltage input end, and the other end that described first resistance reserves pad is connected with one end that described second resistance reserves pad, and described second resistance reserves the other end ground connection of pad; Described first resistance is reserved pad and described second resistance and is reserved one end that pad is connected and be connected with the liquid crystal deflecting element common port voltage input end of liquid crystal module inside.
Further, consider that the liquid crystal deflecting element common port voltage that mainboard provides can mate current liquid crystal module sometimes completely, liquid crystal module in the utility model drives regulator also to comprise the 3rd resistance and reserves pad, the liquid crystal deflecting element common port voltage output end of one end and mainboard that described 3rd resistance reserves pad is connected, and the described 3rd resistance other end of reserving pad and described first resistance are reserved pad and described second resistance and reserved one end that pad is connected and be connected and be connected with liquid crystal deflecting element common port voltage input end simultaneously.When the liquid crystal deflecting element common port voltage that mainboard provides mates current liquid crystal module completely, then not be used in the first resistance and reserve pad and the second resistance reserves pad solder resistance.
In a kind of embodiment, if the liquid crystal deflecting element common port voltage that mainboard provides does not mate with current liquid crystal module, when carrying out the sample experiments of liquid crystal module, pad can be reserved at described first resistance, described second resistance reserves pad solder variable resistor, the liquid crystal deflecting element common port voltage input end of liquid crystal module inside can from AVDD punishment pressure, by the liquid crystal deflecting element common port voltage regulating variable resistor to change liquid crystal module inside, thus carry out the display effect confirmatory experiment of liquid crystal module.
In a kind of embodiment, if the liquid crystal deflecting element common port voltage that mainboard provides does not mate with current liquid crystal module, when carrying out the volume production of liquid crystal module, pad can be reserved at described first resistance, described second resistance reserves pad solder Chip-R, make the liquid crystal deflecting element common port voltage input end of liquid crystal module inside from AVDD punishment pressure, and mate with current liquid crystal module, reach optimal display result.
In a kind of embodiment, if the liquid crystal deflecting element common port voltage that mainboard provides mates with current liquid crystal module, when carrying out the sample experiments of liquid crystal module, pad solder Zero-ohm resistor can be reserved at described 3rd resistance, the liquid crystal deflecting element common port voltage utilizing mainboard to provide as the liquid crystal deflecting element common port voltage of liquid crystal module inside, thus carries out the display effect confirmatory experiment of liquid crystal module.
In a kind of embodiment, if the liquid crystal deflecting element common port voltage that mainboard provides mates with current liquid crystal module, when carrying out the volume production of liquid crystal module, pad place connection copper foil wire can be reserved at the 3rd resistance, the liquid crystal deflecting element common port voltage utilizing mainboard to provide, as the liquid crystal deflecting element common port voltage of liquid crystal module inside, reaches optimal display result.
The liquid crystal module that the utility model provides drives regulator to change the presentation mode of the liquid crystal deflecting element common port voltage in liquid crystal module, the liquid crystal deflecting element common port voltage of traditional liquid crystal module internal is all directly provided by mainboard, therefore the versatility of liquid crystal module is not strong, and the liquid crystal deflecting element common port voltage request exported mainboard is higher.The liquid crystal module adopting the utility model to provide drives regulator, when the liquid crystal deflecting element common port voltage that liquid crystal module and mainboard provide matches, the liquid crystal deflecting element common port voltage that mainboard can be utilized to provide is as the final liquid crystal deflecting element common port voltage of liquid crystal module, when the liquid crystal deflecting element common port voltage that liquid crystal module and mainboard provide does not mate, then can disconnect the liquid crystal deflecting element common port voltage that mainboard provides, by debugging the resistance of the first electric resistance welding contact and the second electric resistance welding contact place welding kesistance, make the liquid crystal deflecting element common port voltage conforms demand of liquid crystal module inside, liquid crystal display display effect is made to reach best.The utility model structure is simple, highly versatile, has widened the compatibility of liquid crystal module, has facilitated the debugging efforts of liquid crystal module sample stage, and save production cost.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the liquid crystal module driving regulator in the utility model embodiment one;
Fig. 2 in the utility model embodiment one when the liquid crystal deflecting element common port voltage that mainboard provides does not mate with current liquid crystal module, liquid crystal module drives regulator welding result schematic diagram;
Fig. 3 is the structural representation of the liquid crystal module driving regulator in the utility model embodiment two.
[embodiment]
Below in conjunction with accompanying drawing, content of the present utility model is further described.
Embodiment one
As shown in Figure 1, the present embodiment one provides a kind of liquid crystal module to drive regulator, comprises the first resistance and reserves pad 1, second resistance and reserve pad 2; One end that first resistance reserves pad 1 is connected with liquid crystal display analog power voltage input end (AVDD namely in figure), the other end that first resistance reserves pad 1 is connected with one end that the second resistance reserves pad 2, and the second resistance reserves the other end ground connection of pad 2; First resistance is reserved pad 1 and is connected with the liquid crystal deflecting element common port voltage input end (VCOM namely in figure) of liquid crystal module inside with one end that the second resistance reserves pad 2 connected.
Liquid crystal module in the present embodiment drives regulator, can make full use of the liquid crystal display analog power voltage that mainboard provides, and is carried out dividing potential drop and as the liquid crystal deflecting element common port voltage of liquid crystal module inside, to meet the display demand of liquid crystal module.
Concrete, if the liquid crystal deflecting element common port voltage that mainboard provides does not mate with current liquid crystal module, (debugging of liquid crystal module is comprised at the sample stage of liquid crystal module, test etc.), then can not use the liquid crystal deflecting element common port voltage that mainboard provides, now can reserve pad 1 at the first resistance, described second resistance is reserved pad 2 and is welded variable resistor, as shown in Figure 2, by regulating variable-resistance resistance, liquid crystal module is made to reach optimal display result, such as debug variable resistor, liquid crystal display is made to show black picture for time the most black, judge to reach optimum efficiency, or to reach the receptible effect of client for optimum efficiency in the variable-resistance process of debugging.When the volume production stage when mass production (liquid crystal module can), pad 1, second resistance can be reserved at the first resistance and reserve the soldering surface mounted resistance of pad 2, its resistance is determined according to debug results during sample stage, general, because electric current is less, first resistance reserve pad 1, second resistance reserve pad 2 place can adopt 0402 paster encapsulation, encapsulation after size very little, also smaller on the integrally-built impact of liquid crystal module.
The liquid crystal module in the present embodiment one is adopted to drive regulator, the liquid crystal display analog power voltage that mainboard provides can be made full use of, whether the liquid crystal deflecting element common port voltage no matter mainboard provides meets the display demand of liquid crystal module, can by reserving pad 1 at the first resistance, second resistance reserves the resistance that suitable resistance is welded at pad 2 place, the liquid crystal deflecting element common port voltage of liquid crystal module inside is satisfied the demands, liquid crystal display effect is made to reach best, liquid crystal module in the present embodiment one drives regulator to widen the compatibility of liquid crystal module, facilitate the debugging efforts of liquid crystal module sample stage, and save production cost.
Embodiment two
As shown in Figure 3, the present embodiment two provides a kind of liquid crystal module to drive regulator, comprises the first resistance and reserves that pad 1, second resistance reserves pad 2, the 3rd resistance reserves pad 3; One end that first resistance reserves pad 1 is connected with liquid crystal display analog power voltage input end (AVDD namely in Fig. 3), the other end that first resistance reserves pad 1 is connected with one end that the second resistance reserves pad 2, and the second resistance reserves the other end ground connection of pad 2; First resistance is reserved pad 1 and is connected with the liquid crystal deflecting element common port voltage input end (VCOM namely in Fig. 3) of liquid crystal module inside with one end that the second resistance reserves pad 2 connected.
The liquid crystal deflecting element common port voltage output end (VCOMI namely in Fig. 3) of one end and mainboard that the 3rd resistance reserves pad 3 is connected, and the 3rd resistance other end of reserving pad 3 and the first resistance are reserved pad 1 and the second resistance and reserved one end that pad 2 is connected and be connected.
Concrete, at the sample stage of liquid crystal module, if the liquid crystal deflecting element common port voltage that mainboard provides can mate completely with current liquid crystal module, then reserve pad 1, second resistance at the first resistance and reserve pad 2 all without welding kesistance, and reserve pad 3 place welding Zero-ohm resistor at the 3rd resistance, Zero-ohm resistor is also called cross-over connection resistor, is a kind of resistance of specific use, and Ohmage is actual is the resistance that resistance value is very little.When the 3rd resistance reserves pad 3 place welding Zero-ohm resistor, can think that liquid crystal deflecting element common port voltage that mainboard provides all is loaded into the liquid crystal deflecting element common port voltage input end of liquid crystal module inside.The liquid crystal deflecting element common port voltage provided due to mainboard and liquid crystal module match, and the display effect of liquid crystal module is better, now can carry out other debugging efforts of liquid crystal module.And in volume production stage of liquid crystal module, 3rd resistance can be reserved pad 3 place connection copper foil wire, substitute the Zero-ohm resistor of sample stage, the liquid crystal deflecting element common port voltage input end of the liquid crystal deflecting element common port voltage output end of mainboard and liquid crystal module inside is connected, ensures preferably display effect.
When the sample stage of liquid crystal module, if the liquid crystal deflecting element common port voltage that mainboard provides does not mate with current liquid crystal module, then can not use the liquid crystal deflecting element common port voltage that mainboard provides, now the 3rd resistance reserve pad 3 can without welding kesistance, and reserve pad 1, second resistance at the first resistance and reserve pad 2 and weld variable resistor, by regulating variable-resistance resistance, liquid crystal module is made to reach optimal display result, such as debug variable resistor, make liquid crystal display show black picture for time the most black, judge to reach optimum efficiency; Or to reach the receptible effect of client for optimum efficiency in the variable-resistance process of debugging.When liquid crystal module carries out volume production, the 3rd resistance is reserved pad 3 and is not welded any resistance, and reserves pad 1, second resistance at the first resistance and reserve the soldering surface mounted resistance of pad 2, and the resistance of Chip-R is determined according to debug results during sample stage.General, because electric current is less, the first resistance is reserved pad 1, second resistance and is reserved pad 2 place and can adopt 0402 paster encapsulation, and after encapsulation, size is very little, also smaller on the integrally-built impact of liquid crystal module.
The liquid crystal module in the present embodiment two is adopted to drive regulator, the situation of the liquid crystal deflecting element common port voltage that can provide according to mainboard, the method of supplying of choose reasonable liquid crystal module inner liquid crystal deflecting element common port voltage, when the liquid crystal deflecting element common port voltage that mainboard provides mates completely with liquid crystal module, the liquid crystal deflecting element common port voltage of liquid crystal module inside is provided by mainboard, when the liquid crystal deflecting element common port voltage that mainboard provides does not mate with liquid crystal module, then the liquid crystal deflecting element common port voltage of liquid crystal module inside supplies by liquid crystal module, now make full use of the liquid crystal display analog power voltage that mainboard provides, by reserving pad 1 at the first resistance, second resistance reserves the resistance that suitable resistance is welded at pad 2 place, the liquid crystal deflecting element common port voltage of liquid crystal module inside is satisfied the demands, liquid crystal display effect is made to reach best.
Comprehensive above content, liquid crystal module driving regulator structure in the utility model is simple, highly versatile, has widened the compatibility of liquid crystal module, has facilitated the debugging efforts of liquid crystal module sample stage, and save production cost, can be used widely in liquid crystal module field.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. liquid crystal module drives a regulator, it is characterized in that, comprises that the first resistance reserves pad, the second resistance reserves pad; One end that described first resistance reserves pad is connected with liquid crystal display analog power voltage input end, and the other end that described first resistance reserves pad is connected with one end that described second resistance reserves pad, and described second resistance reserves the other end ground connection of pad; Described first resistance is reserved pad and described second resistance and is reserved one end that pad is connected and be connected with the liquid crystal deflecting element common port voltage input end of liquid crystal module inside.
2. liquid crystal module according to claim 1 drives regulator, it is characterized in that, also comprise the 3rd resistance and reserve pad, the liquid crystal deflecting element common port voltage output end of one end and mainboard that described 3rd resistance reserves pad is connected, and the described 3rd resistance other end of reserving pad and described first resistance are reserved pad and described second resistance and reserved one end that pad is connected and be connected.
3. liquid crystal module according to claim 1 drives regulator, and it is characterized in that, described first resistance reserves pad, described second resistance reserves pad solder variable resistor.
4. liquid crystal module according to claim 1 drives regulator, and it is characterized in that, described first resistance reserves pad, described second resistance reserves pad solder Chip-R.
5. liquid crystal module according to claim 2 drives regulator, and it is characterized in that, described 3rd resistance reserves pad solder Zero-ohm resistor.
6. liquid crystal module according to claim 2 drives regulator, and it is characterized in that, described 3rd resistance reserves pad connection copper foil wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102739.3U CN204463792U (en) | 2015-02-11 | 2015-02-11 | Liquid crystal module drives regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102739.3U CN204463792U (en) | 2015-02-11 | 2015-02-11 | Liquid crystal module drives regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204463792U true CN204463792U (en) | 2015-07-08 |
Family
ID=53670644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102739.3U Expired - Fee Related CN204463792U (en) | 2015-02-11 | 2015-02-11 | Liquid crystal module drives regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204463792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863456A (en) * | 2021-03-02 | 2021-05-28 | 重庆先进光电显示技术研究院 | Display module, gamma voltage adjusting method of display module and display device |
-
2015
- 2015-02-11 CN CN201520102739.3U patent/CN204463792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863456A (en) * | 2021-03-02 | 2021-05-28 | 重庆先进光电显示技术研究院 | Display module, gamma voltage adjusting method of display module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104795040B (en) | Array substrate, display device and shutdown ghost improving circuit for display device | |
| CN103460279B (en) | Display device and driving method thereof | |
| EP3029664B1 (en) | Voltage supply unit and display device having the same | |
| CN110120201A (en) | Eliminate circuit, its control method and the liquid crystal display device of power-off ghost shadow | |
| US8542226B2 (en) | Gate pulse modulating circuit and method | |
| CN103761953B (en) | A kind of indicative control unit and display device | |
| CN209000515U (en) | Top rake circuit and display device | |
| CN207352947U (en) | Display panel and its image element circuit | |
| CN107610666A (en) | Eliminate the circuit and method of power-off ghost shadow | |
| CN104766582A (en) | Regulating system, regulating method thereof and display device | |
| CN106847215B (en) | Display device | |
| CN106647072A (en) | Array substrate, liquid crystal displayer and display device | |
| CN104167186B (en) | LED backlight and liquid crystal display for liquid crystal display | |
| US8248399B2 (en) | Driving-voltage generation apparatus and liquid crystal display having the same | |
| CN204463792U (en) | Liquid crystal module drives regulator | |
| CN107317476B (en) | Output voltage adjustment circuit and liquid crystal display device | |
| CN101556776A (en) | Driving circuit for realizing rapid discharge of pixel thin film transistor | |
| CN101281736B (en) | Image display device, display panel and method of driving image display device | |
| CN101206844A (en) | Dynamic switch drive mode lcd device and method for reducing power consumption | |
| CN103105712B (en) | Display module and liquid crystal display | |
| CN102262858B (en) | Electro-optical device, method for driving the same, control circuit and electronic apparatus | |
| CN113506546B (en) | Chamfering circuit, driving device and display device | |
| CN204315212U (en) | A kind of liquid crystal display module drives mu balanced circuit | |
| US8325175B2 (en) | Liquid crystal display device with voltage stabilizing unit and method for driving the same | |
| CN107978278A (en) | Scanning circuit, organic light-emitting display device and its driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20220211 |