CN101666943A - Liquid crystal display equipment - Google Patents
Liquid crystal display equipment Download PDFInfo
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- CN101666943A CN101666943A CN200810119723A CN200810119723A CN101666943A CN 101666943 A CN101666943 A CN 101666943A CN 200810119723 A CN200810119723 A CN 200810119723A CN 200810119723 A CN200810119723 A CN 200810119723A CN 101666943 A CN101666943 A CN 101666943A
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Abstract
The invention discloses liquid crystal display equipment. The equipment comprises a backboard, a side frame, an upper frame, a module frame, a liquid crystal screen, a circuit board of the liquid crystal screen and a direct illumination-type LED backlight, wherein the direct illumination-type LED backlight comprises a circuit board of an LED chip arranged on the bottom of the backboard, LED chipsarranged above the circuit board of the LED chip, an optical diaphragm arranged between the side frame and the upper frame as well as a drive and control circuit board and a drive and control electronic device of the LED chips; the drive and control circuit board is arranged inside the side frame or between the upper frame and the module frame; and the drive and control electronic device is arranged on the circuit board of the LED chip or integrated on the drive and control circuit board. The liquid crystal display equipment can reduce thickness, and achieves ultra-thin design.
Description
Technical field
The present invention relates to lcd technology, especially a kind of liquid crystal display.
Background technology
Because liquid crystal itself is not luminous, various liquid crystal displays such as LCD, LCD TV (Liquid Crystal Display, hereinafter to be referred as: LCD), all need to rely on external light source to provide and have certain brightness to realize demonstration with inhomogeneity light.Backlight is the light source supplier of liquid crystal display, and it is positioned at the behind of liquid crystal display.
Light emitting diode (Lighting Emitting Diode, hereinafter to be referred as: LED) be a kind of semiconductor solid luminescence device.LED be called as the 4th generation lighting source or green light source, have energy-conservation, because of not containing advantages such as mercury element environmental protection, the life-span is long, volume is little, fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape have been widely used at present, the product in LED-backlit source has begun to show the field widespread use in small-medium size, large-sized LED-backlit display also begins to enter the industrialization preparatory stage, and slimming, low power consumption, high brightness and low cost etc. are the developing direction in current LED-backlit source.
Backlight show the display quality that has determined liquid crystal display to a certain extent.The thickness of backlight has directly determined the thickness of liquid crystal display, if will realize ultrathin display spare, just needs to reduce the thickness of backlight.
Existing LED-backlit source has side-light type and two kinds of distributed architectures of straight-down negative.As shown in Figure 1, a structural representation for the liquid crystal display that is provided with the side light type LED back light source, it comprises backboard 101, be provided with light guide plate 102 in the backboard 101, the both sides of this light guide plate 102 are placed with led chip 103 respectively, the circuit board 104 of led chip 103 is separately positioned between the two sides of led chip 103 and backboard 101, and light guide plate 102 tops are coated with blooming piece 105.Light guide plate 102, led chip 103, circuit board 104 constitute the side light type LED back light source with blooming piece 105.Blooming piece 105 is provided with and is used for the upper frame 106 that encapsulates in conjunction with 101 pairs of LED-backlit sources of backboard, and upper frame 106 is provided with liquid crystal display 107.In the side light type LED back light source structure, because led chip is distributed in the light guide plate both sides, the led chip negligible amounts that can place makes that the brightness in entire backlight source is lower.Secondly, be unable to do without light guide plate in this back light source structure, though the side-light type structure can reduce the thickness in LED-backlit source, but limited other new technology, for example: the dynamic backlight technology, application on backlight, can only overall dynamics backlight, be unfavorable for saves energy and increase the contrast of liquid crystal display.And, in the entire backlight source a complete light guide plate, because the restriction of processing dimension, for the large scale backlight, difficulty is very big in production and processing, is only applicable to the liquid crystal display of small-medium size.In addition,, be not suitable for adopting the red, green, blue three-primary color LED, cause the colour gamut in this LED-backlit source lower because the restriction of structure can only be adopted white light LEDs.
As shown in Figure 2, a structural representation for the liquid crystal display that is provided with direct LED backlight, it comprises backboard 201, both sides in the backboard 201 are respectively arranged with body side frame 202, bottom in the backboard 201 is provided with the circuit board 203 of led chip, be placed with led chip 204 on the circuit board, on exiting surface, be coated with one deck blooming piece 205 on the body side frame 202 corresponding to led chip 204.The circuit board 203 of led chip, led chip 204 constitute direct LED backlight with blooming piece 205.Blooming piece 205 is provided with and is used for the upper frame 206 that encapsulates in conjunction with 201 pairs of LED-backlit sources of backboard, and upper frame 206 is provided with liquid crystal display 207.In the direct LED backlight structure, brightness is higher, can be applicable in large-sized liquid crystal display, owing to can adopt red, green, blue three-primary color LED chip, thereby color reducibility is better.In addition, can use the dynamic backlight technology improves the contrast of liquid crystal display and saves power consumption.But, must obtain certain light mixing distance between led chip 204 and the blooming piece 205, make that the thickness in this LED-backlit source is bigger.
Because the development trend of liquid crystal display slimming, prior art under the situation that guarantees part strength, reduce the thickness of part in the liquid crystal display that adopts direct LED backlight as far as possible.For example: the thickness of LCD in the display part that Sharp Corp releases only is 2 centimeters.As shown in Figure 3, be provided with a structural representation of the liquid crystal display of direct LED backlight for prior art, wherein, 208 module housings for being used for liquid crystal display and upper frame 206 are encapsulated, 209 is the driving and the control circuit board of led chip 204,210 is the circuit board of liquid crystal display 207, and 211 is the cover plate of circuit board 209 and 210.As shown in Figure 3, except that driving and control circuit board and screen circuit board section, the thickness of liquid crystal display remainder has all reduced.But because driving and control circuit board and screen circuit board section still occupy certain space on the thickness of liquid crystal equipment, the thickness of this part does not reduce, and causes the integral thickness of liquid crystal display to reduce.
Summary of the invention
The purpose of the embodiment of the invention is: a kind of liquid crystal display that adopts direct LED backlight and have less thickness on the whole is provided.
A kind of liquid crystal display that the embodiment of the invention provided, comprise backboard, body side frame, upper frame, the module housing, liquid crystal display, the circuit board of liquid crystal display and direct LED backlight, described direct LED backlight comprises the circuit board of the led chip that is arranged on the backboard bottom, be arranged in the led chip on the circuit board of led chip, and be arranged on blooming piece between body side frame and the upper frame, described direct LED backlight also comprises the driving and the control circuit board of led chip, and the driving of led chip and control electron device, described driving and control circuit board are arranged on described body side frame inside, or between described upper frame and the described module housing, described driving and control electron device are arranged on the circuit board of described led chip, or be integrated on described driving and the control circuit board.
The liquid crystal display that the embodiment of the invention provides adopts direct LED backlight, can satisfy the demand of large scale liquid crystal display device to brightness and color reducibility; Can use the dynamic backlight technology improves the contrast of liquid crystal display and saves power consumption; The driving and the control circuit board of led chip are arranged on body side frame inside; or between upper frame and the module housing; the driving and the control electron device of led chip are arranged on the circuit board of led chip; or be integrated in the driving and control electron device of led chip; make the driving of led chip and control circuit board and driving and control electron device no longer take the overall space of liquid crystal display; that is: the space of backboard back; reduced the thickness of liquid crystal display; reached the purpose that the liquid crystal display integral thickness reduces; realized the ultrathin design of liquid crystal display; and saved the cover plate class part of holding circuit plate, reduced production cost.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a structural representation that is provided with the liquid crystal display in side light type LED back light source;
Fig. 2 is a structural representation that is provided with the liquid crystal display of direct LED backlight;
Fig. 3 is provided with a structural representation of the liquid crystal display of direct LED backlight for prior art;
Fig. 4 is the cut-open view of an embodiment of liquid crystal display of the present invention;
Fig. 5 is a vertical view embodiment illustrated in fig. 4;
Fig. 6 is the cut-open view of another embodiment of liquid crystal display of the present invention;
Fig. 7 is the cut-open view of another embodiment of liquid crystal display of the present invention;
Fig. 8 is the cut-open view of another embodiment of liquid crystal display of the present invention.
The 101-backboard; The 102-light guide plate; The 103-LED chip;
The circuit board of 104-LED chip; The 105-blooming piece; The 106-upper frame;
The 107-liquid crystal display; The 201-backboard; The 202-body side frame;
The circuit board of 203-LED chip; The 204-LED chip; The 205-blooming piece;
The 206-upper frame; The 207-liquid crystal display; 208-module housing;
209-drives and control circuit board; The circuit board of 210-liquid crystal display; The 211-cover plate;
The 301-backboard; The 302-body side frame; The 303-upper frame;
304-module housing; The 305-liquid crystal display; The circuit version of 306-liquid crystal display;
The circuit board of 307-LED chip; The 308-LED chip; The 309-blooming piece;
310-drives and control circuit board; 311-drives and the control electron device.
Embodiment
A kind of liquid crystal display that the embodiment of the invention provides comprises the circuit board 306 and the direct LED backlight of backboard 301, body side frame 302, upper frame 303, module housing 304, liquid crystal display 305, liquid crystal display 305.This direct LED backlight comprise the led chip that is arranged on backboard 301 bottoms circuit board 307, be arranged in the led chip 308 on the circuit board 307 of led chip and be arranged on body side frame 302 and upper frame 303 between blooming piece 309.Direct LED backlight also comprises the driving of led chip 308 and the driving and the control electron device 311 of control circuit board 310 and led chip 308.Wherein, the driving of led chip 308 and control circuit board 310 can be arranged on body side frame 302 inside, also can be arranged between upper frame 303 and the module housing 304.The driving of led chip 308 and control electron device 311 can be arranged on the circuit board 307 of led chip 308, also can be integrated in the driving and control circuit board 310 of led chip 308.
Wherein, the driving of led chip 308 and control circuit board 310 can be for a plurality of.These a plurality of drivings and control circuit board 310 can all be arranged on body side frame 302 inside, also can all be arranged between upper frame 303 and the module housing 304.In addition, also can a plurality of drivings and control circuit board 310 in a part drive and control circuit board is arranged on body side frame 302 inside, and another part driving and control circuit board are arranged between upper frame 303 and the module housing 304.
Particularly, a plurality of drivings and control circuit board 310 can all be arranged on body side frame 302 inside of backboard 301 the same sides, or are separately positioned on body side frame 302 inside of backboard 301 both sides.As shown in Figure 4, be the cut-open view of an embodiment of liquid crystal display of the present invention, Fig. 5 is a vertical view embodiment illustrated in fig. 4.A plurality of drivings among this embodiment and control circuit board 310 are separately positioned on body side frame 302 inside of backboard 301 both sides.
A plurality of drivings and control circuit board 310 can all be arranged between the upper frame 303 and module housing 304 of backboard 301 the same sides, also can be separately positioned between the upper frame 303 and module housing 304 of backboard 301 both sides.As shown in Figure 6, be the cut-open view of another embodiment of liquid crystal display of the present invention.A plurality of drivings among this embodiment and control circuit board 310 are separately positioned between the upper frame 303 and module housing 304 of backboard 301 both sides.
In addition, the driving of the led chip 308 among the liquid crystal display embodiment of the present invention and control electron device 311 also can be for a plurality of.These a plurality of drivings and control electron device 311 can all be arranged on the circuit board 307 of led chip 308, also can all be integrated on driving and the control circuit board 310.In addition, also can a plurality of drivings and control electron device 311 in a part drive and the control electron device is arranged on the circuit board 307 of led chip 308, another part be integrated in drive and control circuit board 310 on.Because in the control and driving circuit of led chip 308, need a lot of electron devices, for fear of driving and control the more space that electron device 311 takies body side frame 302, the width of liquid crystal display frame is reduced as far as possible, the less electron device of thickness in control and the driving circuit can be placed on the circuit board 307 of led chip 308.Particularly, the circuit board 307 of led chip 308 can be single sided board, as Fig. 4 and shown in Figure 5, drive and control electron device 311 and led chip 308 are arranged on the same one side of circuit board 307 of led chip, the next door of led chip 308, the space that can save circuit board 307 as far as possible.The circuit board 307 of led chip 308 also can be dual platen, as shown in Figure 7, cut-open view for another embodiment of liquid crystal display of the present invention, drive and control electron device 311 is arranged on the one side of the led chip 308 of not arranging on the circuit board 307 of led chip 308, its thickness is less than or equal to backboard 301, is positioned at backboard 301 bottoms.
The circuit board 306 of liquid crystal display 305 specifically can be integrated in the driving and control circuit board 310 of led chip, as shown in Figure 8, cut-open view for another embodiment of liquid crystal display of the present invention, among this embodiment, the circuit board 306 that drives and control electron device 311 and liquid crystal display 305 all is integrated in the driving and control circuit board 310 of led chip.Perhaps, the circuit board 306 of liquid crystal display 305 also can be arranged on upside or downside in backboard 301 bottoms, as shown in Figure 5 as driving and control electron device 311.
In the liquid crystal display of the various embodiments described above of the present invention, backboard 301 is base components of assembling liquid crystal display, each assembly in the liquid crystal equipment, for example: body side frame 302, body side frame 306, upper frame 303, module housing 304, blooming piece 309 etc., all pass through backboard 301 connections and fixing.When the assembly of thinner thickness, for example: drive and control electron device 311, be placed on the circuit board 307 of led chip 308, during the opposite side relative, on backboard 301, will process the hole of corresponding size at this assembly physical dimension with led chip 308.Body side frame 302 is used for support of optical diaphragm 309, it can be the insulated product of interior sky, for example: plastics, be used for support of optical diaphragm 311, when the circuit board 306 of body side frame 302 inner placement drivings and control circuit board 310, driving and control electron device 311 or liquid crystal display 305, the size of its inner space, shape can be adjusted according to the actual requirements.Upper frame 303 is used for fixing blooming piece 309 and liquid crystal display 305, is generally plastic products.Module housing 304 is used for liquid crystal display 305 and LED-backlit source are fixed together, specifically can sheet metal product.Liquid crystal display 305 is that thin film transistor (TFT) drives the parts that liquid crystal material shows, for example: membrane transistor-LCD (Thin Film Transistor Liquid Crystal Display, hereinafter to be referred as: TFT-LCD).The circuit board 307 of led chip be used for to led chip 308 supply, cut off the power supply control and the operation, led chip 308 so that the uniform rule of light arrange and be welded on the circuit board 307.Led chip 308 wherein can be White-light LED chip, also can be the monochromatic LED chip, can also be the led chip that is formed by red, green, blue three-primary color LED Chip Packaging, and its quantity specifically can be provided with according to actual needs.Blooming piece 309 is used to realize certain optical effect, for example: brightness, homogeneity, colourity and the visual angle of improving light, the light of led chip 308 emissions more evenly and is at a certain angle spread, promote the optical property in LED-backlit source, it is placed on backboard 301 and the body side frame 302, and is fixing by upper frame 303.The driving of led chip 308 and control circuit board 310 are used for controlling by the allotment of switch, brightness or the color of the driving of led chip 308 and 311 pairs of led chips 308 of control electron device.In the control and driving circuit of led chip 308, need a lot of electron devices, because the space of body side frame 302 is limited, reduce as far as possible for the width that makes the liquid crystal display frame simultaneously, the less electron device of thickness in control and the driving circuit can be placed on the circuit board 307 of led chip 308.
In the liquid crystal display that the embodiment of the invention provides, also can with cold cathode pipe (Cold CathodeFluorescent Lamps, hereinafter to be referred as: CCFL) light source replaces led chip 308, and this structure is suitable equally.
The embodiment of the invention adopts direct LED backlight, can satisfy the demand of large scale liquid crystal display device to brightness and color reducibility; Can use the dynamic backlight technology improves the contrast of liquid crystal display and saves power consumption; Driving and control circuit board, the driving of led chip and the circuit board of control electron device and/or liquid crystal display of led chip are arranged between body side frame inside or upper frame and the module housing; make said modules take the overall space of liquid crystal display no longer separately; that is: the space of backboard back; reduced the thickness of liquid crystal display; reached the purpose that the liquid crystal display integral thickness reduces; realized the ultrathin design of liquid crystal display; and saved the cover plate class part of holding circuit plate, reduced production cost.
It should be noted last that: above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restrictive sense.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.
Claims (10)
1, a kind of liquid crystal display, comprise backboard, body side frame, upper frame, the module housing, liquid crystal display, the circuit board of liquid crystal display and direct LED backlight, described direct LED backlight comprises the circuit board of the led chip that is arranged on the backboard bottom, be arranged in the led chip on the circuit board of led chip, and be arranged on blooming piece between body side frame and the upper frame, described direct LED backlight also comprises the driving and the control circuit board of led chip, and the driving of led chip and control electron device, it is characterized in that, described driving and control circuit board are arranged on described body side frame inside, or between described upper frame and the described module housing, described driving and control electron device are arranged on the circuit board of described led chip, or be integrated on described driving and the control circuit board.
2, liquid crystal display according to claim 1 is characterized in that, described driving and control circuit board are a plurality of; A plurality of drivings and control circuit board all are arranged on described body side frame inside, perhaps, a plurality of drivings and control circuit board all are arranged between described upper frame and the described module housing, perhaps, part in a plurality of drivings and the control circuit board drives and control circuit board is arranged on described body side frame inside, and another part drives and control circuit board is arranged between described upper frame and the described module housing.
3, liquid crystal display according to claim 2, it is characterized in that, a plurality of drivings and control circuit board all are arranged on described body side frame inside and are specially: a plurality of drivings and control circuit board all are arranged on the body side frame inside of backboard the same side, or are separately positioned on the body side frame inside of backboard both sides;
A plurality of drivings and control circuit board all are arranged between described upper frame and the described module housing and are specially: a plurality of drivings and control circuit board all are arranged between the upper frame and module housing of backboard the same side, or are separately positioned between the upper frame and module housing of backboard both sides.
4, liquid crystal display according to claim 1 is characterized in that, described driving and control electron device are a plurality of; A plurality of drivings and control electron device all are arranged on the circuit board of described led chip, perhaps, a plurality of drivings and control electron device all are integrated on described driving and the control circuit board, perhaps, part in a plurality of drivings and the control electron device drives and the control electron device is arranged on the circuit board of described led chip, and another part is integrated on described driving and the control circuit board.
5, liquid crystal display according to claim 4 is characterized in that, the circuit board of described led chip is a single sided board, and described driving and control electron device are arranged on the circuit board of described led chip, the next door of described led chip.
6, liquid crystal display according to claim 4, it is characterized in that, the circuit board of described led chip is a dual platen, and described driving and control electron device are arranged on the circuit board another side led chip of not arranging, led chip, and is positioned at described backboard bottom.
According to any described liquid crystal display of claim 1 to 6, it is characterized in that 7, the circuit board of described liquid crystal display is integrated on driving and the control circuit board, perhaps, the circuit board of described liquid crystal display is arranged in the described backboard bottom.
8, according to any described liquid crystal display of claim 1 to 6, it is characterized in that described backboard is the metallic article of surface-coated insulating material.
9, according to any described liquid crystal display of claim 1 to 6, it is characterized in that described body side frame is the insulated product of interior sky.
According to any described liquid crystal display of claim 1 to 6, it is characterized in that 10, described led chip is White-light LED chip or monochromatic LED chip or the led chip that formed by red, green, blue three-primary color LED Chip Packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119723A CN101666943A (en) | 2008-09-05 | 2008-09-05 | Liquid crystal display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119723A CN101666943A (en) | 2008-09-05 | 2008-09-05 | Liquid crystal display equipment |
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| CN101666943A true CN101666943A (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810119723A Pending CN101666943A (en) | 2008-09-05 | 2008-09-05 | Liquid crystal display equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152519A1 (en) * | 2012-04-11 | 2013-10-17 | 深圳市华星光电技术有限公司 | Manufacturing method for led light bar, led light bar and backlight module |
| CN103996676A (en) * | 2014-06-05 | 2014-08-20 | 广东威创视讯科技股份有限公司 | LED packaging structure |
| CN105137647A (en) * | 2015-09-29 | 2015-12-09 | 中航华东光电有限公司 | Military liquid crystal display module |
| CN105319773A (en) * | 2015-11-03 | 2016-02-10 | 青岛海信电器股份有限公司 | Backlight module and liquid crystal display device |
| WO2017118164A1 (en) * | 2016-01-04 | 2017-07-13 | 京东方科技集团股份有限公司 | Method and device for modulating backlight, light bar, backlight module and display device |
| CN107908041A (en) * | 2017-11-24 | 2018-04-13 | 珠海晨新科技有限公司 | A kind of screen bottom light source module comprehensively and comprehensively screen |
| CN109218589A (en) * | 2018-11-06 | 2019-01-15 | Oppo广东移动通信有限公司 | Imaging modules, CCD camera assembly and electronic device |
| CN113777825A (en) * | 2020-06-10 | 2021-12-10 | 海信视像科技股份有限公司 | Display device |
| US11703716B2 (en) | 2020-04-28 | 2023-07-18 | Hisense Visual Technology Co., Ltd. | Display apparatus |
| US11796859B2 (en) | 2020-03-25 | 2023-10-24 | Hisense Visual Technology Co., Ltd. | Display apparatus with micro light emitting diode light board |
| US11822183B2 (en) | 2020-03-25 | 2023-11-21 | Hisense Visual Technology Co., Ltd. | Display apparatus |
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2008
- 2008-09-05 CN CN200810119723A patent/CN101666943A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152519A1 (en) * | 2012-04-11 | 2013-10-17 | 深圳市华星光电技术有限公司 | Manufacturing method for led light bar, led light bar and backlight module |
| CN103996676A (en) * | 2014-06-05 | 2014-08-20 | 广东威创视讯科技股份有限公司 | LED packaging structure |
| CN103996676B (en) * | 2014-06-05 | 2018-02-13 | 广东威创视讯科技股份有限公司 | A kind of LED encapsulation structure |
| CN105137647A (en) * | 2015-09-29 | 2015-12-09 | 中航华东光电有限公司 | Military liquid crystal display module |
| CN105319773A (en) * | 2015-11-03 | 2016-02-10 | 青岛海信电器股份有限公司 | Backlight module and liquid crystal display device |
| WO2017118164A1 (en) * | 2016-01-04 | 2017-07-13 | 京东方科技集团股份有限公司 | Method and device for modulating backlight, light bar, backlight module and display device |
| CN107908041A (en) * | 2017-11-24 | 2018-04-13 | 珠海晨新科技有限公司 | A kind of screen bottom light source module comprehensively and comprehensively screen |
| CN109218589A (en) * | 2018-11-06 | 2019-01-15 | Oppo广东移动通信有限公司 | Imaging modules, CCD camera assembly and electronic device |
| CN109218589B (en) * | 2018-11-06 | 2024-05-10 | Oppo广东移动通信有限公司 | Imaging module, camera assembly and electronic device |
| US11796859B2 (en) | 2020-03-25 | 2023-10-24 | Hisense Visual Technology Co., Ltd. | Display apparatus with micro light emitting diode light board |
| US11822183B2 (en) | 2020-03-25 | 2023-11-21 | Hisense Visual Technology Co., Ltd. | Display apparatus |
| US11703716B2 (en) | 2020-04-28 | 2023-07-18 | Hisense Visual Technology Co., Ltd. | Display apparatus |
| CN113777825A (en) * | 2020-06-10 | 2021-12-10 | 海信视像科技股份有限公司 | Display device |
| CN113777825B (en) * | 2020-06-10 | 2022-09-30 | 海信视像科技股份有限公司 | Display device |
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Open date: 20100310 |