CN201877109U - Display device and source electrode drive board - Google Patents

Display device and source electrode drive board Download PDF

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Publication number
CN201877109U
CN201877109U CN2010205211839U CN201020521183U CN201877109U CN 201877109 U CN201877109 U CN 201877109U CN 2010205211839 U CN2010205211839 U CN 2010205211839U CN 201020521183 U CN201020521183 U CN 201020521183U CN 201877109 U CN201877109 U CN 201877109U
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CN
China
Prior art keywords
backlight
source
drive plate
circuit
display device
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 - Lifetime
Application number
CN2010205211839U
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Chinese (zh)
Inventor
肖维春
郭玉斌
李波涛
王超
焦清海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Multimedia Co Ltd
Original Assignee
QINGDAO HAIER PHOTOELECTRIC CO Ltd
QINGDAO JIAONAN HAIER ELECTRONIC CO Ltd
Haier Group Corp
Qingdao Haier Electronics Co Ltd
Hefei Haier Information Product Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by QINGDAO HAIER PHOTOELECTRIC CO Ltd, QINGDAO JIAONAN HAIER ELECTRONIC CO Ltd, Haier Group Corp, Qingdao Haier Electronics Co Ltd, Hefei Haier Information Product Co Ltd filed Critical QINGDAO HAIER PHOTOELECTRIC CO Ltd
Priority to CN2010205211839U priority Critical patent/CN201877109U/en
Application granted granted Critical
Publication of CN201877109U publication Critical patent/CN201877109U/en
Priority to PCT/CN2011/077255 priority patent/WO2012031504A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G09G3/3611—Control of matrices with row and column drivers
    • 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
    • G09G3/3406—Control of illumination source

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The utility model relates to a display device which comprises a display module and a backlight module, wherein the display module comprises a non-self-luminous display panel, a source electrode drive circuit and a sound electrode drive board, the source electrode drive circuit is electrically connected between the source electrode drive board and the non-self-luminous display panel and is controlled by the source electrode drive board to provide display material signals to the non-self-luminous display panel, so that images can be displayed, the backlight module comprises a backlight source and a backlight source drive circuit, wherein the backlight source is controlled by the backlight source drive circuit to carry out the corresponding brightness performance, and the backlight source drive circuit is integrated on the source electrode drive board. The utility model also provides the source electrode drive board. In the utility model, by the display device and the source electrode drive board, the backlight drive circuit is integrated on the source electrode drive board, so that the space is saved, and the manufacturing cost is reduced.

Description

Display device and source drive plate
Technical field
The utility model relates to the display technique field, particularly a kind of display device and source drive plate.
Background technology
At present, display device for example LCD because of have high image quality, volume is little, in light weight and advantage such as applied range is widely used.As shown in Figure 1, LCD generally includes display module 5 and backlight module 8.Wherein, display module 5 comprises non-autoluminescence (non-emissive) display panel 501, source electrode drive circuit 502, source drive plate 505, gate driver circuit 503 and sequential control panel 510.Source electrode drive circuit 502 is electrically connected between source drive plate 505 and the non-light-emitting display panel 501, gate driver circuit 503 is electrically connected on non-light-emitting display panel 501 controlling the conduction and cut-off state of the transistor in the pixel on the non-light-emitting display panel 501, and source electrode drive circuit 502 and gate driver circuit 502 are all accepted the sequential control of the time schedule controller 511 on the sequential control plate 510.Control and gate driver circuit 503 that source electrode drive circuit 502 is accepted source drive plate 505 provide display data signal to non-light-emitting display panel 501 to carry out the image demonstration jointly.Source drive plate 505 is provided with gamma voltage generator (Gamma Voltage Generator) 506 so that display image is carried out Gamma correction.Sequential control plate 510 is electrically connected on source drive plate 505 to export display data signal and timing control signal to source drive plate 505, is provided to source electrode drive circuit 502 and gate driver circuit 503 by source drive plate 505 again.Backlight module 8 comprises backlight 801, backlight driver plate 802 and optical diaphragm group 803.Backlight 801 is arranged on the side of optical diaphragm group 803 and accepts the control of backlight driver plate 802 and carry out corresponding brightness performance, can comprise blooming pieces such as light guide plate and diffusion sheet in this optical diaphragm group 803.Backlight driver plate 802 is provided with and comprises constant-current source circuit 805 and the direct current backlight source driving circuit to DC converting circuit 806.It is a steady state value that constant-current source circuit 805 can make the electric current of the backlight 801 of flowing through.The direct current that direct current receives the output of power panel (not shown)s to DC converting circuit 806 is 24V DC voltage and with its direct-current working volts that transform to backlight 801 60V DC voltage for example for example, gives backlight 801 power supplies.
Yet, adopt the LCD of foregoing circuit structure, source drive plate 505 is independently drive plate with backlight driver plate 802, relatively takes up room, the lightening development trend that is unfavorable for display device, and also can bring the reduction of complete machine packaging efficiency and cause manufacturing cost higher.
The utility model content
The purpose of this utility model is to provide a kind of integrated display device and source drive plate thereof, to save the space and to reduce manufacturing cost.
Therefore, a kind of display device that the utility model embodiment proposes, comprise display module and backlight module, display module comprises non-light-emitting display panel, source electrode drive circuit and source drive plate, and source electrode drive circuit is electrically connected between source drive plate and the non-light-emitting display panel and the control of accepting the source drive plate shows to provide display data signal to non-light-emitting display panel to carry out image; Backlight module comprises backlight and backlight source driving circuit, and backlight is accepted the control of backlight source driving circuit and carry out corresponding brightness to present; Backlight source driving circuit is integrated on the source drive plate.
In the foregoing description of the present utility model, non-light-emitting display panel can be display panels.More can be provided with gamma voltage generator on the source drive plate so that display image is carried out Gamma correction.Source electrode drive circuit can comprise a plurality of flexible PCBs and be separately positioned on a plurality of source driving chips on a plurality of flexible PCBs.Backlight source driving circuit can comprise constant-current source circuit and direct current to DC converting circuit, thereby backlight receives power from the source drive plate.Backlight module more can comprise optical diaphragm group, and backlight is arranged on the side of optical diaphragm group in the sidelight mode.Backlight can be light-emitting diode light bar.
A kind of source drive plate that the utility model embodiment proposes, be suitable for being applied to display device, display device comprises non-light-emitting display panel, source electrode drive circuit and backlight, the control that source electrode drive circuit is electrically connected to non-light-emitting display panel by the source drive plate and accepts the source drive plate shows to provide display data signal to non-light-emitting display panel to carry out image, the source drive plate is provided with backlight source driving circuit, with the brightness performance of control backlight.
Embodiment of the present utility model is by integrating backlight source driving circuit on the source drive plate, space on the source drive plate is fully utilized, thereby saving space, and owing to can dispense backlight drive plate of the prior art, therefore can save the printed circuit board (PCB) cost and reduce manufacturing cost.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structured flowchart of liquid crystal indicator of the prior art.
Fig. 2 is the structured flowchart according to the liquid crystal indicator of the utility model one embodiment.
[main element symbol description]
5,10: display module 8,20: backlight module
501,101: non-light-emitting display panel 502,102: source electrode drive circuit
505,105: source drive plate 503,103: gate driver circuit
510,110: sequential control plate 506,106: gamma voltage generator
511,111: time schedule controller 107,117: flexible PCB
108: source driving chip 118: grid drive chip
803,203: optical diaphragm group 801,201: backlight
802: backlight driver plate 202: backlight source driving circuit
805,205: constant-current source circuit 806,206: direct current is to DC converting circuit
GL: gate line SL: data line
Cst: storage capacitors Clc: liquid crystal capacitance
P: pixel
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to display device and its embodiment of source drive plate, structure, feature and the effect that the utility model proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in following the cooperation in the graphic preferred embodiment detailed description of reference.Explanation by embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Fig. 2 is the structured flowchart according to the liquid crystal indicator of the utility model one embodiment.Please refer to Fig. 2, display device for example liquid crystal indicator comprises display module 10 and backlight module 20.Need to prove that at this embodiment of the invention only illustrates as an example with liquid crystal indicator, is not to be used for limiting the utility model, for example liquid crystal indicator can be changed to the display device that other need back lighting.
Display module 10 comprises non-light-emitting display panel 101, source electrode drive circuit 102, source drive plate 105, gate driver circuit 103 and sequential control panel 110.
More specifically, non-light-emitting display panel 101 can be display panels.Be provided with in the non-light-emitting display panel 101 many gate lines G L, many data line SL and with a plurality of pixel P of gate lines G L and data line SL electric property coupling, gate lines G L and data line SL are arranged in a crossed manner.A gate lines G L, a data line SL and a pixel P only are shown as an example among Fig. 2.Particularly, as shown in Figure 2, pixel P comprises transistor, storage capacitors Cst and liquid crystal capacitance Clc.Transistorized grid is electrically coupled to gate lines G L, transistorized source/drain electrode is electrically coupled to data line SL, transistorized leakage/source electrode is electrically coupled to the end of storage capacitors Cst and liquid crystal capacitance Clc, the other end of liquid crystal capacitance C1c receives the common voltage (not shown), and the other end of storage capacitors Cst is electrically coupled to the common electrode (not shown) of pixel P to receive common voltage.
Time schedule controller 110 is provided with time schedule controller 111, and be electrically connected on source drive plate 105 with output display data signal and timing control signal to source drive plate 105, and then to source electrode drive circuit 102 and gate driver circuit 103 carries out sequential control and provide the display data signal to source electrode drive circuit 102.
Source electrode drive circuit 102 is electrically connected between source drive plate 105 and the non-light-emitting display panel 101.Gate driver circuit 103 is electrically connected on non-light-emitting display panel 101 and controls with the conduction and cut-off state to the transistor among the pixel P.Control and gate driver circuit 103 that source electrode drive circuit 102 is accepted source drive plate 105 provide display data signal to non-light-emitting display panel 101 to carry out the image demonstration jointly.Source electrode drive circuit 102 comprises a plurality of flexible PCBs 107 and is separately positioned on a plurality of source driving chips (Source driver, SD) 108 on a plurality of flexible PCBs 107.Gate driver circuit 103 comprises a plurality of flexible PCBs 117 and is separately positioned on a plurality of grid drive chip (Gate driver, GD) 118 on a plurality of flexible PCBs 111.During concrete enforcement, source driving chip 108 and grid drive chip 118 can adopt coil type chip carrier packages (Tape Carrier Package; TCP) mode or chip soft board engage (chip on Film; COF) packaged type is arranged at respectively on flexible PCB 107 and the flexible PCB 117.
Backlight source driving circuit 202 is set on the source drive plate 105.Also be provided with gamma voltage generator 106 on the source drive plate 105 so that display image is carried out Gamma correction.Backlight source driving circuit 202 comprises constant-current source circuit 205 and direct current to DC converting circuit 206, thereby backlight 201 receives power from source drive plate 105.It is a steady state value that constant-current source circuit 205 can make the electric current of the backlight 201 of flowing through.The direct current that direct current can receive power panel (not shown) output to DC converting circuit 206 is 24V DC voltage and with its direct-current working volts that transform to backlight module 20 60V DC voltage for example for example, provides power to give backlight module 20.
Backlight module 20 comprises backlight 201 and is arranged on backlight source driving circuit 202 on the source drive plate 105.Backlight 201 is accepted the control of backlight source driving circuit 202 and power supply supply and is carried out corresponding brightness performance, at this, backlight 201 can pass through flexible cable (flexible flat cable, FFC) and power lead be electrically connected to source drive plate 105.Backlight module 20 also comprises optical diaphragm group 203, and backlight 201 is arranged on the side of optical diaphragm group 203 in the sidelight mode; At this, optical diaphragm group 203 can comprise blooming pieces such as light guide plate and diffusion sheet.Backlight 201 for example can be light emitting diode, and (it also can be a cathode fluorescent tube etc. for 1ight emitting diode, LED) lamp bar, but the utility model is as limit.In addition, it will be appreciated by persons skilled in the art that backlight of the present utility model 201 and optical diaphragm group 203 are not limited to above-mentioned side-light type configuration, its also can adopt the straight-down negative configuration mode (also be backlight be configured in optical diaphragm group under).
In sum, the utility model display device and source drive plate are by integrating backlight source driving circuit 202 on source drive plate 105, therefore the direct-current working volts that can the input voltage of source drive plate 105 be transformed to backlight module 20 to DC converting circuit 206 by the direct current that is arranged on the source drive plate 105 60V DC voltage for example gives backlight module 20 power supplies; Owing to be integrated with backlight source driving circuit 202 on the source drive plate 105, make the space of source drive plate 105 to be fully used, thereby save the space, and reduce the use of a printed circuit board, thereby reduced manufacturing cost.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims (10)

1. display device comprises:
Display module, comprise non-light-emitting display panel, source electrode drive circuit and source drive plate, described source electrode drive circuit is electrically connected between described source drive plate and the described non-light-emitting display panel and the control of accepting described source drive plate shows to provide display data signal to described non-light-emitting display panel to carry out image; And
Backlight module comprises backlight and backlight source driving circuit, and described backlight is accepted the control of described backlight source driving circuit and carried out corresponding brightness performance;
It is characterized in that described backlight source driving circuit is integrated on the described source drive plate.
2. display device according to claim 1 is characterized in that, described non-light-emitting display panel is a display panels.
3. display device according to claim 1 is characterized in that, more is provided with gamma voltage generator on the described source drive plate so that display image is carried out Gamma correction.
4. display device according to claim 1 is characterized in that, described source electrode drive circuit comprises a plurality of flexible PCBs and is separately positioned on a plurality of source driving chips on described a plurality of flexible PCB.
5. display device according to claim 1 is characterized in that, described backlight source driving circuit comprises constant-current source circuit and direct current to DC converting circuit, thereby described backlight receives power from described source drive plate.
6. display device according to claim 1 is characterized in that described backlight module more comprises optical diaphragm group, and described backlight is arranged on the side of described optical diaphragm group in the sidelight mode.
7. display device according to claim 1 is characterized in that, described backlight is a light-emitting diode light bar.
8. source drive plate, be applied to display device, described display device comprises non-light-emitting display panel, source electrode drive circuit and backlight, the control that described source electrode drive circuit is electrically connected to described non-light-emitting display panel by described source drive plate and accepts described source drive plate shows to provide display data signal to described non-light-emitting display panel to carry out image, it is characterized in that, described source drive plate is provided with backlight source driving circuit, to control the brightness performance of described backlight.
9. source drive plate according to claim 8 is characterized in that, described backlight source driving circuit comprises constant-current source circuit and direct current to DC converting circuit, thereby described backlight receives power from described source drive plate.
10. source drive plate according to claim 8 is characterized in that, gamma voltage generator more is set so that display image is carried out Gamma correction on the described source drive plate.
CN2010205211839U 2010-09-08 2010-09-08 Display device and source electrode drive board Expired - Lifetime CN201877109U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010205211839U CN201877109U (en) 2010-09-08 2010-09-08 Display device and source electrode drive board
PCT/CN2011/077255 WO2012031504A1 (en) 2010-09-08 2011-07-18 Display device and source drive board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205211839U CN201877109U (en) 2010-09-08 2010-09-08 Display device and source electrode drive board

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CN201877109U true CN201877109U (en) 2011-06-22

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WO (1) WO2012031504A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031504A1 (en) * 2010-09-08 2012-03-15 海尔集团公司 Display device and source drive board
CN103035217A (en) * 2011-10-10 2013-04-10 吴小平 Liquid crystal display panel of scanning type side light supplying Light-Emitting Diode (LED) backlight
TWI488171B (en) * 2013-04-17 2015-06-11 Benq Corp Image processing method of display device and display device thereof
CN106023915A (en) * 2016-05-26 2016-10-12 深圳市华星光电技术有限公司 Control circuit and display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101127844B1 (en) * 2005-06-21 2012-03-21 엘지디스플레이 주식회사 Apparatus and method for driving image display device
TWI348671B (en) * 2006-08-16 2011-09-11 Au Optronics Corp A circuit for driving an lcd panel and a method thereof
CN101493604A (en) * 2008-01-21 2009-07-29 中华映管股份有限公司 Lcd
CN101778530A (en) * 2009-01-09 2010-07-14 京东方科技集团股份有限公司 Driving printed circuit board and liquid crystal display
CN201877109U (en) * 2010-09-08 2011-06-22 海尔集团公司 Display device and source electrode drive board

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031504A1 (en) * 2010-09-08 2012-03-15 海尔集团公司 Display device and source drive board
CN103035217A (en) * 2011-10-10 2013-04-10 吴小平 Liquid crystal display panel of scanning type side light supplying Light-Emitting Diode (LED) backlight
TWI488171B (en) * 2013-04-17 2015-06-11 Benq Corp Image processing method of display device and display device thereof
CN106023915A (en) * 2016-05-26 2016-10-12 深圳市华星光电技术有限公司 Control circuit and display device
CN106023915B (en) * 2016-05-26 2018-08-07 深圳市华星光电技术有限公司 Control circuit and display device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151210

Address after: 266103 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China

Patentee after: haier group corporation

Patentee after: Qingdao Haier Electric Appliance Co., Ltd.

Patentee after: Qingdao Haier Photoelectric Co., Ltd.

Patentee after: Qingdao Jiaonan Haier Electronic Co., Ltd.

Patentee after: Hefei Haier Information Product Co., Ltd.

Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD.

Address before: 266103 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China

Patentee before: haier group corporation

Patentee before: Qingdao Haier Electric Appliance Co., Ltd.

Patentee before: Qingdao Haier Photoelectric Co., Ltd.

Patentee before: Qingdao Jiaonan Haier Electronic Co., Ltd.

Patentee before: Hefei Haier Information Product Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110622