CN103680446A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN103680446A CN103680446A CN201310674066.4A CN201310674066A CN103680446A CN 103680446 A CN103680446 A CN 103680446A CN 201310674066 A CN201310674066 A CN 201310674066A CN 103680446 A CN103680446 A CN 103680446A
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- circuit board
- storage unit
- circuit
- programme
- display device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a display device. The display device is characterized in that the display device is provided with a first printed circuit board and a second printed circuit board, the first circuit board is provided with a storage unit which is used for storing parameters needed by a display panel drive signal, and the second circuit board is provided with a time sequence controller and a programmable gamma circuit and used for receiving parameters stored by the storage unit. In the process of producing, the display panel can be in bonding with the first printed circuit board at first and then the parameters are written into the storage unit in advance and are set into the first printed circuit board, the display panel and the first printed circuit board are connected with the second printed circuit board, and the connection is usually achieved manually. Therefore, the display device can solve the matching errors existing when the display panel is assembled with the storage unit.
Description
Technical field
The invention provides a kind of display device, especially about a kind of display device that can prevent display panel and printed circuit board (PCB) (PCB) matching error when assembling.
Background technology
In recent years, more and more for large-sized display panels demand on market, the manufacture of display panels is also towards large-sized future development.Along with the production of display device changes large scale into by small size, the framework of display device also changes to some extent, as shown in Figure 1, existing large scale display device 100 has display panel 110 and divides horizontal direction circuit board X-board (hereinafter referred to as the first printed circuit board (PCB)) 130 and control circuit board (C/B) or the system control panel (SOC) (hereinafter referred to as the second printed circuit board (PCB)) 140 being arranged.On producing, display panel 110 can first pass through flexible printed circuit board 180 together with the first printed circuit board (PCB) 130 combinations (bonding), afterwards, display panel 110 is connected with the second printed circuit board (PCB) 140 with the plug wire (not shown) of string shape clock line (SCL) by string graphic data line (SDA) with the first printed circuit board (PCB) 130 again, and this connects conventionally by manually completing.
In existing large scale display device, the second printed circuit board (PCB) 140 disposes gamma circuit able to programme (Programmable gamma IC) 160, time schedule controller (Timing controller) 170 and storage unit 151/152 conventionally.Gamma circuit 160 able to programme is for adjusting being delivered to gamma (GAMMA) parameter of driving circuit 120, and described gamma parameter is in the storage unit 151 being stored in described gamma circuit 160 able to programme (as EEPROM); Time schedule controller 170 is for carrying out processing controls to being delivered to the sequential of the driving signal of driving circuit 120, and time schedule controller 170 is, according to the relevant parameter of the distinctive optical characteristics of each display panel 110, display panel 110 is carried out to processing controls, described correlation parameter comprises (Over-driver) table of overdriving, color table and GTG adjustment (de-mura) table etc., and above-mentioned Parameter storage is in a storage unit 152 (as EEPROM).
Above-mentioned parameter can be because each display panel 110 has a little difference in optical characteristics and precision, therefore each display panel 110 have its parameter list of specific correspondence, and described parameter list is just stored in storage unit 151 and the corresponding storage unit of time schedule controller 170 152 the insides in gamma circuit 160 able to programme.
The effect of the first printed circuit board (PCB) 130 is that the signal of the second printed circuit board (PCB) 140 is delivered to driving circuit 120 inside.Described driving circuit 120 operated by rotary motion are at display panel 110 and the first printed circuit board (PCB) 130 intersections.
In the manufacturing process of large-sized display device 100, display panel 110 is after combining driving circuit 120, driving circuit 120 again with the first printed circuit board (PCB) 130 combinations, then just can test the above-mentioned parameter being stored in storage unit 151/152, and the correlation parameter that test obtains can be written in the second corresponding printed circuit board (PCB) 140 in advance.
Each display panel 110 has the second printed circuit board (PCB) 140 of its specific matching, but along with the division of labor of producing and manufacture more and more becomes more meticulous, display panel 110 and the second printed circuit board (PCB) 140 may be produced and manufacture in different places, so when the storage unit 151/152 that correlation parameter is write to the second printed circuit board (PCB) 140 is interior, the second printed circuit board (PCB) 140 need to be indicated to coupling with corresponding display panel 110, afterwards when assembling, need to assemble again according to indicating after the second printed circuit board (PCB) 140 of correspondence and display panel 110 are mated, once but assembling makes mistakes, can there is very large deviation in the display effect of liquid crystal panel 110, therefore being necessary to propose a kind of solution improves above-mentioned assembly defect and causes the not good problem of display effect.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of display device, described display device is arranged at the storage unit that has the corresponding optical characteristics correlation parameter of display panel table on the first printed circuit board (PCB) being connected with driving circuit, and the second printed circuit board (PCB) is only for receiving the parameter in described storage unit, to solve the second printed circuit board (PCB) and the first printed circuit board (PCB) and display panel assembly defect, cause the not good problem of display effect.
To achieve these goals, the invention provides a kind of display device, it is characterized in that, described display device comprises: a display panel, has a plurality of pixels; One drive circuit, for generation of a plurality of driving signals to drive a plurality of pixels in described display panel; One first circuit board, described first circuit board and described driving circuit are electrically connected, and described first circuit board has a storage unit, for the required parameter of a plurality of pixels of display panel described in storing driver; And a second circuit board, described second circuit board and described first circuit board are electrically connected, the parameter of storing for receiving described storage unit.
According to an aspect of the present invention, described second circuit board has a gamma circuit able to programme, described gamma circuit able to programme is connected with described storage unit, for receiving the parameter of a described storage unit part, for providing described driving circuit to produce, drives signal.
According to a further aspect in the invention, described second circuit board has gamma circuit able to programme and a time schedule controller, and wherein said gamma circuit able to programme is connected with described storage unit, for receiving the parameter of a described storage unit part; And described time schedule controller is connected with described storage unit, for receiving the parameter of described storage unit another part.
In above-mentioned display device, described second circuit board has an inter-integrated circuit, and described gamma circuit able to programme is by described inter-integrated circuit, and the parameter of a part in described storage unit is received to described gamma circuit able to programme.
In above-mentioned display device, described inter-integrated circuit is arranged at described gamma inside circuit able to programme.
According to a further aspect in the invention, described second circuit board has time schedule controller and is connected with described storage unit, for receiving the parameter of a described storage unit part, for providing described driving circuit to produce, drives signal.
According to a further aspect in the invention, described second circuit board has gamma circuit able to programme and a time schedule controller, wherein said time schedule controller is connected between described storage unit and described gamma circuit able to programme, described time schedule controller receives the parameter of a described storage unit part, and described gamma circuit able to programme receives the parameter of described storage unit another part by described time schedule controller.
In above-mentioned display device, described second circuit board has an inter-integrated circuit, and described gamma circuit able to programme is by described inter-integrated circuit, and the parameter of a part in described storage unit is received to described gamma circuit able to programme.
In above-mentioned display device, described inter-integrated circuit is arranged at described gamma inside circuit able to programme.
One of them kind such as the parameter that according to a further aspect in the invention, described storage unit is stored comprises gal code table, the table of overdriving, color table and GTG adjustment form.
The object of the invention is to be to provide a kind of display device that solves display panel and the second printed circuit board (PCB) composition matching mistake.Relative prior art, the present invention is arranged at the storage unit that has the corresponding optical characteristics correlation parameter of display panel table on the first printed circuit board (PCB) being connected with driving circuit, and the second printed circuit board (PCB) is only for receiving the parameter in described storage unit, therefore solved the problem of the second printed circuit board (PCB) and display panel matching error when assembling.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, Bing coordinates appended graphic, is described in detail below:
Accompanying drawing explanation
The display device of the prior art that the 1st figure is;
The first embodiment of the present invention that the 2nd figure is;
The second embodiment of the present invention that the 3rd figure is.
Embodiment
In this manual, term " ", " one 's " etc. use Bing does not represent number quantitative limitation, and means the reference part that has at least one.
The 2nd figure is a kind of display device 200 illustrating according to the embodiment of the present invention, described display device 200 comprises on wherein said the first printed circuit board (PCB) 230 of display panel 210, the first printed circuit board (PCB) 230 and the second printed circuit board (PCB) 240 and is provided with a storage unit 250, and on described the second printed circuit board (PCB) 240, is provided with a gamma circuit 260 able to programme, time schedule controller 270 and an inter-integrated circuit 261.Described display panel 210 is by flexible printed circuit board 280 and the first printed circuit board (PCB) 230 combinations (bonding), afterwards, described display panel 210 is connected with the second printed circuit board (PCB) 240 with the plug wire (not shown) of string shape clock line (SCL) by string graphic data line (SDA) with described the first printed circuit board (PCB) 230 again, this connects conventionally by manually completing, and is provided with driving circuit 220 and drives signal to be passed to the many signal line (not show) in described display panel 210 in order to provide on wherein said flexible printed circuit board 280.
Because each display panel has a little difference in optical characteristics and precision, therefore each display panel have its parameter list of specific correspondence, such as: gal code table, the table of overdriving, color table and GTG adjustment form etc., and described parameter list is just stored in above-mentioned storage unit 250 the insides.Generally speaking, parameter list is write storage unit 250 the insides in advance, again described storage unit 250 is arranged on described the first printed circuit board (PCB) 230 afterwards, and described gamma circuit 260 able to programme and described time schedule controller 270 are arranged on the second printed circuit board (PCB) 240.During fabrication, described display panel 210 is by flexible printed circuit board 280 and the first printed circuit board (PCB) 230 combinations, afterwards by storage unit 250 write parameters be arranged at the first printed circuit board (PCB) 230 in advance, then, described display panel 210 is connected with the second printed circuit board (PCB) 240 with the plug wire (not show) of string shape clock line by string graphic data line with described the first printed circuit board (PCB) 230 again, and this connects conventionally by manually completing.According to configuration of the present invention, the storage unit 250 of write parameters is in advance arranged on the first printed circuit board (PCB) 230, therefore, when assembling, just can not there is the problem of the second printed circuit board (PCB) 240 and display panel 210 matching errors.
According to above-mentioned, the driving process of described display panel 110 is, the inter-integrated circuit 261 of the second 240 li of printed circuit board (PCB)s receives the parameter of a part in described storage unit 250 to described gamma circuit 260 able to programme by one group of string graphic data line and string shape clock line 291, and described time schedule controller 270 receives the parameter of described storage unit 250 another part by another group string graphic data line and string shape clock line 292.Described gamma circuit 260 able to programme and described time schedule controller 270 are adjusted the parameter that received separately, adjust after parameter, the second printed circuit board (PCB) 240 can transmit signal to the first printed circuit board (PCB) 230, the first printed circuit board (PCB) 230 is delivered to driving circuit 220 inside by the signal receiving from the second printed circuit board (PCB) 240 again, then, driving circuit 220 provides and drives signal to the many signal line (not show) in described display panel 210 to reach display effect with the picture element in driving display panel 210.
According to embodiments of the invention, understandable, the display device obtaining according to specific demand extension, for example, on the second printed circuit board (PCB) 240, only have time schedule controller 270 or gamma circuit 260 able to programme, in like manner, this type of display device is the same as technical method of the present invention.
The display device 300 of second embodiment of the invention is similar to the first embodiment substantially, as shown in Figure 3, on the second printed circuit board (PCB) 340, be provided with a gamma circuit 360 able to programme, time schedule controller 370 and an inter-integrated circuit 361, wherein time schedule controller 370 is connected between storage unit 350 and gamma circuit 360 able to programme.Described time schedule controller 370 receives to an inter-integrated circuit 361 by one group of string graphic data line and string shape clock line 391 parameters by described storage unit 350 parts, and described inter-integrated circuit 361 receives the parameter of transmitting via described time schedule controller 370 to described gamma circuit 360 able to programme by another group string graphic data line and string shape clock line 392 again.According to above-mentioned, described gamma circuit able to programme 360 obtains the method for desired parameter, can be for described time schedule controller 370 to be from disposable described gamma circuit 360 able to programme and the needed parameter of described time schedule controller 370 of reading of described storage unit 350, described time schedule controller 370 is initiatively sent to parameter described gamma circuit 360 able to programme again; Also can be, when when described gamma circuit 360 requests able to programme obtain parameter, described time schedule controller 370 reads the parameter of the part in described storage unit 350 separately, and described time schedule controller 370 is sent to parameter described gamma circuit 360 able to programme again.Described time schedule controller 370 and described gamma circuit 360 able to programme receive after the parameter of described storage unit 350 again, next drive the process afterwards of described display panel 310 as the above embodiments.
Although exemplary specific embodiment of the present invention is described, but should be appreciated that ground, the present invention is not limited to these exemplary specific embodiments, within the spirit and principles in the present invention all, any modification that those of ordinary skills do, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (10)
1. a display device, is characterized in that, described display device comprises:
One display panel, has a plurality of pixels;
One drive circuit, for generation of a plurality of driving signals to drive a plurality of pixels in described display panel;
One first circuit board, described first circuit board and described driving circuit are electrically connected, and described first circuit board has a storage unit, for the required parameter of a plurality of pixels of display panel described in storing driver; And
One second circuit board, described second circuit board and described first circuit board are electrically connected, the parameter of storing for receiving described storage unit.
2. display device according to claim 1, it is characterized in that, described second circuit board has a gamma circuit able to programme, described gamma circuit able to programme is connected with described storage unit, for receiving the parameter of a described storage unit part, for providing described driving circuit to produce, drives signal.
3. display device according to claim 1, it is characterized in that, described second circuit board has gamma circuit able to programme and a time schedule controller, and wherein said gamma circuit able to programme is connected with described storage unit, for receiving the parameter of a described storage unit part; And described time schedule controller is connected with described storage unit, for receiving the parameter of described storage unit another part.
4. display device according to claim 3, it is characterized in that, described second circuit board has an inter-integrated circuit, and described gamma circuit able to programme is by described inter-integrated circuit, and the parameter of a part in described storage unit is received to described gamma circuit able to programme.
5. display device according to claim 4, is characterized in that, described inter-integrated circuit is arranged at described gamma inside circuit able to programme.
6. display device according to claim 1, is characterized in that, described second circuit board has time schedule controller and is connected with described storage unit, for receiving the parameter of a described storage unit part, for providing described driving circuit to produce, drives signal.
7. display device according to claim 1, it is characterized in that, described second circuit board has gamma circuit able to programme and a time schedule controller, wherein said time schedule controller is connected between described storage unit and described gamma circuit able to programme, described time schedule controller receives the parameter of a described storage unit part, and described gamma circuit able to programme receives the parameter of described storage unit another part by described time schedule controller.
8. display device according to claim 7, it is characterized in that, described second circuit board has an inter-integrated circuit, and described gamma circuit able to programme is by described inter-integrated circuit, and the parameter of a part in described storage unit is received to described gamma circuit able to programme.
9. display device according to claim 8, is characterized in that, described inter-integrated circuit is arranged at described gamma inside circuit able to programme.
10. display device according to claim 1, is characterized in that, one of them kind such as the parameter that described storage unit is stored comprises gal code table, the table of overdriving, color table and GTG adjustment form.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674066.4A CN103680446A (en) | 2013-12-11 | 2013-12-11 | Display device |
| PCT/CN2013/089727 WO2015085607A1 (en) | 2013-12-11 | 2013-12-17 | Display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674066.4A CN103680446A (en) | 2013-12-11 | 2013-12-11 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103680446A true CN103680446A (en) | 2014-03-26 |
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ID=50317809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674066.4A Pending CN103680446A (en) | 2013-12-11 | 2013-12-11 | Display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103680446A (en) |
| WO (1) | WO2015085607A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096860A (en) * | 2015-07-31 | 2015-11-25 | 深圳市华星光电技术有限公司 | Communication method, communication device and system of TFTLCD drive circuit |
| CN107610661A (en) * | 2017-09-19 | 2018-01-19 | 惠科股份有限公司 | Driving device and driving method for display device |
| CN107863058A (en) * | 2017-11-22 | 2018-03-30 | 深圳市华星光电技术有限公司 | The control circuit and control method of display panel |
| CN109119040A (en) * | 2018-09-18 | 2019-01-01 | 惠科股份有限公司 | Display device, driving configuration method of display device and display |
| CN109712555A (en) * | 2019-02-25 | 2019-05-03 | 合肥京东方显示技术有限公司 | Control circuit board, additional circuit boards and display device |
| CN111261090A (en) * | 2020-03-04 | 2020-06-09 | Tcl华星光电技术有限公司 | System and method for realizing automatic programmable gamma correction |
| CN114429757A (en) * | 2021-12-02 | 2022-05-03 | 重庆惠科金渝光电科技有限公司 | Display panel, display module and driving method of display module |
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| CN1800933A (en) * | 2006-01-19 | 2006-07-12 | 友达光电股份有限公司 | Display device and panel module |
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| US20130300773A1 (en) * | 2012-05-14 | 2013-11-14 | Lg Display Co., Ltd. | Display Device |
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| KR101250787B1 (en) * | 2006-06-30 | 2013-04-08 | 엘지디스플레이 주식회사 | Liquid crystal display device having gamma voltage generator of register type in data driver integrated circuit |
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- 2013-12-17 WO PCT/CN2013/089727 patent/WO2015085607A1/en active Application Filing
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| WO2003065342A1 (en) * | 2002-01-31 | 2003-08-07 | Texas Instruments Incorporated | Embedded and programmable gamma correction circuit and method |
| CN1773330A (en) * | 2004-11-11 | 2006-05-17 | 中华映管股份有限公司 | Dynamic gamma regulating circuit and method and liquid crystal displaying device |
| CN1800933A (en) * | 2006-01-19 | 2006-07-12 | 友达光电股份有限公司 | Display device and panel module |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105096860A (en) * | 2015-07-31 | 2015-11-25 | 深圳市华星光电技术有限公司 | Communication method, communication device and system of TFTLCD drive circuit |
| CN107610661A (en) * | 2017-09-19 | 2018-01-19 | 惠科股份有限公司 | Driving device and driving method for display device |
| WO2019056440A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Driving apparatus and driving method for display apparatus |
| CN107610661B (en) * | 2017-09-19 | 2019-07-16 | 惠科股份有限公司 | Driving device and driving method for display device |
| CN107863058A (en) * | 2017-11-22 | 2018-03-30 | 深圳市华星光电技术有限公司 | The control circuit and control method of display panel |
| CN109119040A (en) * | 2018-09-18 | 2019-01-01 | 惠科股份有限公司 | Display device, driving configuration method of display device and display |
| CN109712555A (en) * | 2019-02-25 | 2019-05-03 | 合肥京东方显示技术有限公司 | Control circuit board, additional circuit boards and display device |
| CN111261090A (en) * | 2020-03-04 | 2020-06-09 | Tcl华星光电技术有限公司 | System and method for realizing automatic programmable gamma correction |
| CN114429757A (en) * | 2021-12-02 | 2022-05-03 | 重庆惠科金渝光电科技有限公司 | Display panel, display module and driving method of display module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015085607A1 (en) | 2015-06-18 |
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Application publication date: 20140326 |