WO2012031504A1 - 显示装置及源极驱动板 - Google Patents

显示装置及源极驱动板 Download PDF

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WO2012031504A1
WO2012031504A1 PCT/CN2011/077255 CN2011077255W WO2012031504A1 WO 2012031504 A1 WO2012031504 A1 WO 2012031504A1 CN 2011077255 W CN2011077255 W CN 2011077255W WO 2012031504 A1 WO2012031504 A1 WO 2012031504A1
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Prior art keywords
source driving
backlight
driving circuit
source
board
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PCT/CN2011/077255
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English (en)
French (fr)
Inventor
肖维春
郭玉斌
李波涛
王超
焦清海
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海尔集团公司
青岛海尔电子有限公司
青岛海尔光电有限公司
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Publication of WO2012031504A1 publication Critical patent/WO2012031504A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source

Definitions

  • the utility model relates to the technical field of display, in particular to a display device and a source driving board.
  • the liquid crystal display generally includes a display module 5 and a backlight module 8.
  • the display module 5 includes a non-emissive display panel 501, a source driving circuit 502, a source driving board 505, a gate driving circuit 503, and a timing control board 510.
  • the source driving circuit 502 is electrically connected between the source driving board 505 and the non-self-luminous display panel 501
  • the gate driving circuit 503 is electrically connected to the non-self-luminous display panel 501 to control pixels in the pixels on the non-self-luminous display panel 501.
  • the transistor is turned on/off, and the source driving circuit 502 and the gate driving circuit 503 are both controlled by the timing controller 511 on the timing control board 510.
  • the source driving circuit 502 receives the display of the source driving board 505 and the gate driving circuit 503 to provide a display material signal to the non-self-luminous display panel 501 for image display.
  • a gamma voltage generator (Gamma) is disposed on the source driving board 505.
  • Voltage Generator 506 to perform gamma correction on the displayed image.
  • the timing control board 510 is electrically connected to the source driving board 505 to output a display data signal and a timing control signal to the source driving board 505, and then supplied from the source driving board 505 to the source driving circuit 502 and the gate driving circuit 503.
  • the backlight module 8 includes a backlight 801, a backlight driving board 802, and an optical film group 803.
  • the backlight 801 is disposed on the side of the optical film group 803 and is controlled by the backlight driving board 802 to perform corresponding brightness expression.
  • the optical film group 803 may include an optical film such as a light guide plate and a diffusion sheet.
  • a backlight driving circuit including a constant current source circuit 805 and a DC-DC converting circuit 806 is disposed on the backlight driving board 802.
  • the constant current source circuit 805 can make the current flowing through the backlight 801 a constant value.
  • the DC-to-DC conversion circuit 806 receives a DC power output from a power board (not shown), for example, a 24V DC voltage, and converts it to a DC operating voltage of the backlight 801, for example, a 60V DC voltage, to supply power to the backlight 801.
  • a power board not shown
  • a 24V DC voltage for example, a 24V DC voltage
  • a DC operating voltage of the backlight 801 for example, a 60V DC voltage
  • the source driving board 505 and the backlight driving board 802 are independent driving boards, which occupy a relatively large space, which is disadvantageous to the development trend of the thin and light display device, and also brings the whole machine assembly.
  • the reduction in efficiency leads to higher manufacturing costs.
  • the purpose of the present invention is to provide an integrated display device and a source driving board thereof to save space and reduce manufacturing costs.
  • a display device includes a display module and a backlight module.
  • the display module includes a non-self-luminous display panel, a source driving circuit, and a source driving board.
  • the source driving circuit is electrically connected to the source driving.
  • the board and the non-self-luminous display panel are controlled by the source driving board to provide a display data signal to the non-self-illuminating display panel for image display;
  • the backlight module includes a backlight and a backlight driving circuit, and the backlight receives the backlight driving circuit The corresponding brightness is presented by the control; the backlight driving circuit is integrated on the source driving board.
  • the non-self-luminous display panel may be a liquid crystal display panel.
  • a gamma voltage generator may be further disposed on the source driving board to perform gamma correction on the display image.
  • the source driving circuit may include a plurality of flexible circuit boards and a plurality of source driving chips respectively disposed on the plurality of flexible circuit boards.
  • the backlight driving circuit may include a constant current source circuit and a DC-to-DC conversion circuit, so that the backlight receives power supply power from the source driving board.
  • the backlight module may further comprise an optical film set, and the backlight is disposed sideways on the side of the optical film set.
  • the backlight can be an LED strip.
  • a source driving board is suitable for use in a display device.
  • the display device includes a non-self-luminous display panel, a source driving circuit, and a backlight.
  • the source driving circuit is electrically connected to the source driving board through the source driving board.
  • the non-self-luminous display panel is controlled by the source driving board to provide a display data signal to the non-self-luminous display panel for image display, and the source driving board is provided with a backlight driving circuit to control the brightness performance of the backlight.
  • the embodiment of the present invention makes the space on the source driving board fully utilized by integrating the backlight driving circuit on the source driving board, thereby saving space, and since the backlight driving board in the prior art can be omitted, It can save on printed circuit board costs and reduce manufacturing costs.
  • FIG. 1 is a block diagram showing the structure of a liquid crystal display device in the prior art.
  • FIG. 2 is a block diagram showing the structure of a liquid crystal display device according to an embodiment of the present invention.
  • source driver chip 118 gate driver chip
  • backlight driving board 202 backlight driving circuit
  • a display device such as a liquid crystal display device includes a display module 10 and a backlight module 20.
  • a display module 10 includes a display module 10 and a backlight module 20.
  • the embodiment of the present invention is merely illustrative of a liquid crystal display device, and is not intended to limit the present invention.
  • the liquid crystal display device can be changed to other display devices that require backlight illumination.
  • the display module 10 includes a non-self-luminous display panel 101, a source driving circuit 102, a source driving board 105, a gate driving circuit 103, and a timing control board 110.
  • the non-self-luminous display panel 101 may be a liquid crystal display panel.
  • the non-self-luminous display panel 101 is provided with a plurality of gate lines GL, a plurality of data lines SL, and a plurality of pixels P electrically coupled to the gate lines GL and the data lines SL.
  • the gate lines GL and the data lines SL cross. Settings. Only one gate line GL, one data line SL, and one pixel P are shown in FIG. 2 as an example.
  • the pixel P includes a transistor, a storage capacitor Cst, and a liquid crystal capacitor Clc.
  • the gate of the transistor is electrically coupled to the gate line GL
  • the source/drain of the transistor is electrically coupled to the data line SL.
  • the drain/source of the transistor is electrically coupled to one end of the storage capacitor Cst and the liquid crystal capacitor Clc.
  • the other end of the liquid crystal capacitor Clc receives a common voltage (not shown), and the other end of the storage capacitor Cst is electrically coupled to a common electrode (not shown) of the pixel P to receive a common voltage.
  • the timing controller 110 is provided with a timing controller 111, and is electrically connected to the source driving board 105 to output a display data signal and a timing control signal to the source driving board 105, and further to the source driving circuit 102 and the gate driving circuit 103. Timing control is performed and a display data signal is supplied to the source driving circuit 102.
  • the source driving circuit 102 is electrically connected between the source driving board 105 and the non-self-luminous display panel 101.
  • the gate driving circuit 103 is electrically connected to the non-self-luminous display panel 101 to control the on/off state of the transistors in the pixel P.
  • the source driving circuit 102 receives the control of the source driving board 105 and the gate driving circuit 103 together to provide a display material signal to the non-self-luminous display panel 101 for image display.
  • the source driving circuit 102 includes a plurality of flexible circuit boards 107 and a plurality of source driving chips respectively disposed on the plurality of flexible circuit boards 107 (Source Driver, SD) 108.
  • the gate driving circuit 103 includes a plurality of flexible circuit boards 117 and a plurality of gate driving chips respectively disposed on the plurality of flexible circuit boards 111 (Gate Driver, GD) 118.
  • the source driving chip 108 and the gate driving chip 118 may be packaged by a tape carrier (Tape Carrier).
  • a package (TCP) method or a chip on film (COF) package is disposed on the flexible circuit board 107 and the flexible circuit board 117, respectively.
  • a backlight driving circuit 202 is disposed on the source driving board 105.
  • a gamma voltage generator 106 is further disposed on the source driving board 105 to perform gamma correction on the display image.
  • the backlight driving circuit 202 includes a constant current source circuit 205 and a direct current to direct current converting circuit 206 such that the backlight 201 receives power source power from the source driving board 105.
  • the constant current source circuit 205 can make the current flowing through the backlight 201 a constant value.
  • the DC-to-DC conversion circuit 206 can receive a DC power output from a power board (not shown), for example, a 24V DC voltage, and convert it to a DC operating voltage of the backlight module 20, such as a 60V DC voltage, to provide power to the backlight module 20.
  • the backlight module 20 includes a backlight 201 and a backlight driving circuit 202 disposed on the source driving board 105.
  • the backlight 201 receives the control of the backlight driving circuit 202 and the power supply to perform corresponding brightness performance.
  • the backlight 201 can pass through a flexible cable (flexible Flat cable, The FFC) and the power line are electrically connected to the source driver board 105.
  • the backlight module 20 further includes an optical film set 203.
  • the backlight 201 is disposed sideways on the side of the optical film set 203.
  • the optical film set 203 may include an optical film such as a light guide plate and a diffusion sheet.
  • the backlight 201 can be, for example, a light emitting diode (light) The illuminating strip, but the present invention is not limited thereto, and it may also be a cold cathode fluorescent tube or the like.
  • the backlight 201 of the present invention The optical film group 203 is not limited to the above-described side light type configuration, and it can also be used in a direct type configuration (that is, the backlight is disposed directly under the optical film group).
  • the display device and the source driving board of the present invention integrate the backlight driving circuit 202 on the source driving board 105, so that the source can be sourced by the DC-DC conversion circuit 206 disposed on the source driving board 105.
  • the input voltage of the pole driving board 105 is converted to a DC operating voltage of the backlight module 20, for example, a DC voltage of 60 V, to supply power to the backlight module 20; since the backlight driving circuit 202 is integrated on the source driving board 105, the space of the source driving board 105 is made. It can be fully utilized, saving space and reducing the use of a printed circuit board, thereby reducing manufacturing costs.

Description

显示装置及源极驱动板 技术领域
本实用新型涉及显示技术领域,特别涉及一种显示装置及源极驱动板。
背景技术
目前,显示装置例如液晶显示器因具有高画质、体积小、重量轻及应用范围广等优点而被广泛地应用。如图1所示,液晶显示器通常包括显示模块5以及背光模块8。其中,显示模块5包括非自发光(non-emissive)显示面板501、源极驱动电路502、源极驱动板505、栅极驱动电路503及时序控制板510。源极驱动电路502电连接于源极驱动板505与非自发光显示面板501之间,栅极驱动电路503电连接于非自发光显示面板501以控制非自发光显示面板501上的像素中的晶体管之导通/截止状态,且源极驱动电路502及栅极驱动电路503均接受时序控制板510上的时序控制器511之时序控制。源极驱动电路502接受源极驱动板505的控制与栅极驱动电路503共同提供显示资料信号至非自发光显示面板501进行图像显示。源极驱动板505上设置有伽玛电压产生器(Gamma Voltage Generator)506以对显示图像进行伽玛校正。时序控制板510电连接于源极驱动板505以输出显示资料信号及时序控制信号至源极驱动板505,再由源极驱动板505提供至源极驱动电路502及栅极驱动电路503。背光模块8包括背光源801、背光源驱动板802及光学膜片组803。背光源801设置在光学膜片组803的侧边并接受背光源驱动板802的控制而进行相应的亮度表现,在此光学膜片组803可包括导光板及扩散片等光学膜片。背光源驱动板802上设置有包括恒流源电路805及直流对直流转换电路806的背光源驱动电路。恒流源电路805可使流经背光源801的电流为一恒定值。直流对直流转换电路806接收电源板(图中未示出)输出的直流电例如24V直流电压并将其变换到背光源801的直流工作电压例如60V直流电压,给背光源801供电。
然而,采用上述电路结构的液晶显示器,源极驱动板505与背光源驱动板802均为独立的驱动板,比较占用空间,不利于显示装置的轻薄化发展趋势,并且也会带来整机组装效率的降低而导致制造成本较高。
技术解决方案
本实用新型的目的在于提供一种整合型的显示装置及其源极驱动板,以节省空间和减少制造成本。
因此,本实用新型实施例提出的一种显示装置,包括显示模块以及背光模块,显示模块包括非自发光显示面板、源极驱动电路及源极驱动板,源极驱动电路电连接于源极驱动板与非自发光显示面板之间并接受源极驱动板的控制以提供显示资料信号至非自发光显示面板进行图像显示;背光模块包括背光源及背光源驱动电路,背光源接受背光源驱动电路的控制而进行相应的亮度呈现;背光源驱动电路整合于源极驱动板上。
在本实用新型的上述实施例中,非自发光显示面板可为液晶显示面板。源极驱动板上更可设置有伽玛电压产生器以对显示图像进行伽玛校正。源极驱动电路可包括多个柔性电路板以及分别设置在多个柔性电路板上的多个源极驱动芯片。背光源驱动电路可包括恒流源电路及直流对直流转换电路,从而背光源从源极驱动板接收电源电力。背光模块更可包括光学膜片组,背光源以侧光方式设置在光学膜片组的侧边。背光源可为发光二极管灯条。
本实用新型实施例提出的一种源极驱动板,适于应用于显示装置,显示装置包括非自发光显示面板、源极驱动电路以及背光源,源极驱动电路通过源极驱动板电连接至非自发光显示面板并接受源极驱动板的控制以提供显示资料信号至非自发光显示面板进行图像显示,源极驱动板上设置有背光源驱动电路,以控制背光源的亮度表现。
本实用新型的实施例通过在源极驱动板上整合背光源驱动电路,使源极驱动板上的空间得以充分利用,从而节省空间,并且由于可省略掉现有技术中的背光驱动板,因此可节省印刷电路板成本而降低制造成本。
附图说明
图1是现有技术中的液晶显示装置的结构框图。
图2是根据本实用新型一实施例的液晶显示装置的结构框图。
【主要元件符号说明】
5、10:显示模块 8、20:背光模块
501、101:非自发光显示面板 502、102:源极驱动电路
505、105:源极驱动板 503、103:栅极驱动电路
510、110:时序控制板 506、106:伽玛电压产生器
511、111:时序控制器 107、117:柔性电路板
108:源极驱动芯片 118:栅极驱动芯片
803、203:光学膜片组 801、201:背光源
802:背光源驱动板 202:背光源驱动电路
805、205:恒流源电路 806、206:直流对直流转换电路
GL:栅极线 SL:数据线
Cst:储存电容 Clc:液晶电容
P:像素
本发明的实施方式
为更进一步阐述本实用新型为达成预定实用新型目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本实用新型提出的显示装置及源极驱动板其具体实施方式、结构、特征及功效,详细说明如后。
有关本实用新型的前述及其他技术内容、特点及功效,在以下配合参考图式的较佳实施例详细说明中将可清楚的呈现。通过具体实施方式的说明,当可对本实用新型为达成预定目的所采取的技术手段及功效得以更加深入且具体的了解,然而所附图式仅是提供参考与说明之用,并非用来对本实用新型加以限制。
图2是根据本实用新型一实施例的液晶显示装置的结构框图。请参考图2,显示装置例如液晶显示装置包括显示模块10以及背光模块20。在此需要说明的是,本发明实施例仅以液晶显示装置作为举例说明,并非用来限制本实用新型,例如可将液晶显示装置变更为其他需要背光照明的显示装置。
显示模块10包括非自发光显示面板101、源极驱动电路102、源极驱动板105、栅极驱动电路103及时序控制板110。
更具体地,非自发光显示面板101可为液晶显示面板。非自发光显示面板101内设置有多条栅极线GL、多条数据线SL以及与栅极线GL和数据线SL电性耦接的多个像素P,栅极线GL与数据线SL交叉设置。图2中仅示出一条栅极线GL、一条数据线SL以及一个像素P作为举例。具体地,如图2所示,像素P包括晶体管、储存电容Cst以及液晶电容Clc。晶体管的栅极电性耦接至栅极线GL,晶体管的源/漏极电性耦接至数据线SL,晶体管的漏/源极电性耦接至储存电容Cst与液晶电容Clc的一端,液晶电容Clc的另一端接收共用电压(未示出),储存电容Cst的另一端电性耦接至像素P的共用电极(未示出)以接收共用电压。
时序控制器110上设置有时序控制器111,且电连接于源极驱动板105以输出显示资料信号及时序控制信号至源极驱动板105,进而对源极驱动电路102及栅极驱动电路103进行时序控制并提供显示资料信号至源极驱动电路102。
源极驱动电路102电连接于源极驱动板105与非自发光显示面板101之间。栅极驱动电路103电连接于非自发光显示面板101以对像素P中的晶体管之导通/截止状态进行控制。源极驱动电路102接受源极驱动板105的控制与栅极驱动电路103共同提供显示资料信号至非自发光显示面板101进行图像显示。源极驱动电路102包括多个柔性电路板107以及分别设置在多个柔性电路板107上的多个源极驱动芯片(Source driver,SD)108。栅极驱动电路103包括多个柔性电路板117以及分别设置在多个柔性电路板111上的多个栅极驱动芯片(Gate driver,GD)118。具体实施时,源极驱动芯片108及栅极驱动芯片118可以采用卷带式芯片载体封装(Tape Carrier Package;TCP)方式或芯片软板接合(chip on Film;COF)封装方式分别设置于柔性电路板107及柔性电路板117上。
源极驱动板105上设置背光源驱动电路202。源极驱动板105上还设置有伽玛电压产生器106以对显示图像进行伽玛校正。背光源驱动电路202包括恒流源电路205及直流对直流转换电路206,从而背光源201从源极驱动板105接收电源电力。恒流源电路205可使流经背光源201的电流为一恒定值。直流对直流转换电路206可接收电源板(图中未示出)输出的直流电例如24V直流电压并将其变换到背光模块20的直流工作电压例如60V直流电压,以给背光模块20提供电源电力。
背光模块20包括背光源201及设置在源极驱动板105上的背光源驱动电路202。背光源201接受背光源驱动电路202的控制以及电源供应而进行相应的亮度表现,在此,背光源201可通过柔性电缆线(flexible flat cable, FFC)及电源线电连接至源极驱动板105。背光模块20还包括光学膜片组203,背光源201以侧光方式设置在光学膜片组203的侧边;在此,光学膜片组203可包括导光板及扩散片等光学膜片。背光源201例如可为发光二极管(light emitting diode,LED)灯条,但本实用新型并不以此为限,其也可以是冷阴极荧光灯管等。此外,本领域技术人员可以理解的是,本实用新型的背光源201 与光学膜片组203并不限于上述之侧光式配置,其也可采用直下式配置方式(也即背光源配置在光学膜片组的正下方)。
综上所述,本实用新型显示装置及源极驱动板通过在源极驱动板105上整合背光源驱动电路202,因此可以通过设置在源极驱动板105上的直流对直流转换电路206将源极驱动板105的输入电压变换到背光模块20的直流工作电压例如60V直流电压,给背光模块20供电;由于源极驱动板105上整合有背光源驱动电路202,使得源极驱动板105的空间可以得到充分利用,从而节省空间,并且减少一块印刷电路板的使用,从而降低了制造成本。
以上所述,仅是本实用新型的较佳实施例而已,并非对本实用新型作任何形式上的限制,虽然本实用新型已以较佳实施例揭露如上,然而并非用以限定本实用新型,任何熟悉本专业的技术人员,在不脱离本实用新型技术方案范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本实用新型技术方案内容,依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本实用新型技术方案的范围内。

Claims (10)

  1. 一种显示装置,包括:
    显示模块,包括非自发光显示面板、源极驱动电路及源极驱动板,所述源极驱动电路电连接于所述源极驱动板与所述非自发光显示面板之间并接受所述源极驱动板的控制驱动所述非自发光显示面板进行图像显示;以及
    背光模块,包括背光源及背光源驱动电路,所述背光源驱动电路驱动所述背光源;
    其特征在于,所述背光源驱动电路整合于所述源极驱动板上。
  2. 根据权利要求1所述的显示装置,其特征在于,所述非自发光显示面板为液晶显示面板。
  3. 根据权利要求1所述的显示装置,其特征在于,所述源极驱动板上还设置有伽玛电压产生器,与所述源极驱动电路电连接。
  4. 根据权利要求1所述的显示装置,其特征在于,所述源极驱动电路包括至少一个柔性电路板,所述柔性电路板上设置有源极驱动芯片。
  5. 根据权利要求1、3或4所述的显示装置,其特征在于,所述背光源驱动电路包括恒流源电路及直流对直流转换电路。
  6. 根据权利要求1所述的显示装置,其特征在于,所述背光模块包括光学膜片组,所述背光源以侧光方式设置在所述光学膜片组的侧边。
  7. 根据权利要求1所述的显示装置,其特征在于,所述背光源为发光二极管灯条。
  8. 一种源极驱动板,应用于显示装置,所述显示装置包括非自发光显示面板、源极驱动电路以及背光源,所述源极驱动电路通过所述源极驱动板电连接至所述非自发光显示面板并接受所述源极驱动板的控制驱动所述非自发光显示面板进行图像显示,其特征在于,所述源极驱动板上设置有背光源驱动电路,用于驱动所述背光源。
  9. 根据权利要求8所述的源极驱动板,其特征在于,所述背光源驱动电路包括恒流源电路及直流对直流转换电路。
  10. 根据权利要求8或9所述的源极驱动板,其特征在于,所述源极驱动板上还设置伽玛电压产生器,与所述源极驱动电路电连接。
PCT/CN2011/077255 2010-09-08 2011-07-18 显示装置及源极驱动板 WO2012031504A1 (zh)

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CN201877109U (zh) * 2010-09-08 2011-06-22 海尔集团公司 显示装置及源极驱动板
CN103035217A (zh) * 2011-10-10 2013-04-10 吴小平 一种扫描式侧供光lde背光源的液晶显示面板
TWI488171B (zh) * 2013-04-17 2015-06-11 Benq Corp 顯示裝置之影像處理方法及其顯示裝置
CN106023915B (zh) * 2016-05-26 2018-08-07 深圳市华星光电技术有限公司 控制电路及显示装置

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