CN101686357B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN101686357B CN101686357B CN2009101659212A CN200910165921A CN101686357B CN 101686357 B CN101686357 B CN 101686357B CN 2009101659212 A CN2009101659212 A CN 2009101659212A CN 200910165921 A CN200910165921 A CN 200910165921A CN 101686357 B CN101686357 B CN 101686357B
- Authority
- CN
- China
- Prior art keywords
- lcd
- framework
- back light
- light unit
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a liquid crystal display device, which has an external machine shell and comprises a liquid crystal display unit and a backlight unit. The liquid crystal display unit is provided with a frame body, a liquid crystal display panel and a drive control circuit, wherein the frame body is arranged on the periphery of the liquid crystal display panel; the liquid crystal display panel has a display side; and the drive control circuit is arranged in the frame body and is electrically connected with the liquid crystal display panel. The backlight unit is provided with a shell, at least one light emitting element and a light source driver driving the light emitting element, wherein the light emitting element and the light source driver are arranged in the shell; the shell is mutually combined with the frame body to allow the backlight unit to be arranged on a side opposite to the display side of the liquid crystal display panel; and the shell of the backlight unit and the frame body of the liquid crystal display unit form the external machine shell of the liquid crystal display device.
Description
The application is that application number is 200410049359.4, and denomination of invention is divided an application for the patent application of " liquid crystal indicator ".
Technical field
The present invention relates to a kind of display unit, be meant a kind of liquid crystal indicator especially with back light unit.
Background technology
Liquid crystal indicator can be distinguished the liquid crystal indicator of using as general display haply with regard to its purposes, and the liquid crystal indicator of using as TV.In fact, these two kinds of liquid crystal indicator basic structures do not have very big-difference, and just subelement and partly circuit difference, and portion of element is provided with the position difference.
As shown in Figure 1, existing liquid crystal indicator 1 mainly comprises a LCD panel 11, a back light unit 12, drives loop 13, a control loop 14, one first housing 15, one second housing 16 and a runners 17.
As shown in Figure 1, LCD panel 11 includes a liquid crystal layer 111, a colored optical filtering substrates 112, a thin-film transistor loop substrate 113 at least, reaches two Polarizers 114,115 (polarizer).Liquid crystal layer 111 is held under the arm and is placed colored optical filtering substrates 112 and thin-film transistor loop substrate 113, and these Polarizers 114,115 are arranged at a side of colored optical filtering substrates 112 and thin-film transistor loop substrate 113 respectively.
And for example shown in Figure 1, back light unit 12 mainly comprises the light source drive 122 that a lamp box 121 and drives fluorescent tube.Lamp box 121 comprises several fluorescent tubes 120 and a diffuser plate 124 at least.
Be electrically connected at LCD panel 11 and drive loop 13, general in order to drive LCD panel 11, drive loop 13 and mainly constituted by several drive IC 131 and at least one drive circuit board 132.
In addition, as shown in Figure 1, LCD panel 11, back light unit 12, drive loop 13, and control loop 14 coated by first housing 15 and second housing 16 fully.And second housing 16 is connected with a runners 17.
With regard to above-mentioned available liquid crystal display unit 1, owing to be provided with several fluorescent tubes 120 in the lamp box 121, and be cold cathode fluorescent lamp as fluorescent tube generally.Because average life span of each cold cathode fluorescent lamp and quality are also incomplete same, so if when having any fluorescent tube 120 to go wrong in the lamp box 121, the backlight that will cause whole back light unit 12 to be provided goes wrong.Severe patient, even whole liquid crystal indicator scrapped.For solving this problem, it is lamp box 121 designs that propose special construction that the dealer is arranged recently, so that at the problematic fluorescent tube 120 independent schemes of changing, change the problem that problem fluorescent tube 120 is arranged though this kind scheme can solve, still has two large problems to solve.Problem one:, therefore, will have the problem of new and old fluorescent tube 120 brightness irregularities if only change wherein one or two tubes 120 owing to be provided with several fluorescent tubes 120 in the lamp box 121.Problem two: because the liquid crystal display 11 of available liquid crystal display unit 1, back light unit 12, driving loop 13 and control loop 14 is coated by first housing 15 and second housing 16 fully, therefore when user's desire is changed fluorescent tube 120, then must dismantle first housing 15 and second housing 16 earlier at least, even also to dismantle control loop 14 and just can change fluorescent tube 120 with light source drive 122, this dismounting action perhaps is not difficult for the professional person, but real for ordinary consumer is quite difficult, also may the quality of product be damaged simultaneously, therefore even produce misgivings on the safety again because of fluorescent tube uses high voltage drive.
In above-mentioned, be to be example with the cold cathode fluorescent lamp as the light-emitting component of back light unit, generally speaking, also can be light-emitting diode or plane fluorescent lamp etc. as the light-emitting component person of back light unit.
From the above, how to provide a kind of liquid crystal indicator, it can make the light-emitting component of back light unit be easy to change, and can keep the light source uniformity of back light unit, and then the useful life of keeping liquid crystal indicator, is an important topic in fact.
Summary of the invention
Because above-mentioned problem the objective of the invention is to overcome the deficiencies in the prior art and defective, provide a kind of back light unit that makes to be convenient to the liquid crystal indicator of assembling, dismantling.
For reaching above-mentioned purpose, the invention provides a kind of liquid crystal indicator, have an exterior case, it comprises a liquid crystal display and a back light unit.Liquid crystal display has a framework, a LCD panel and a drive controlling loop, and framework is along being located at the LCD panel periphery, and LCD panel has one and shows side, and the drive controlling loop is arranged in the framework, and electrically connects with LCD panel; Back light unit has the light source drive of a housing, at least one light-emitting component and a driven light-emitting element, light-emitting component and light source drive are arranged in the housing, housing and framework mutually combine, so that back light unit is arranged at the opposite side of the demonstration side of LCD panel, the housing of back light unit and the framework of liquid crystal display form the exterior case of liquid crystal indicator.
From the above, because of complying with liquid crystal indicator of the present invention is that light-emitting component and light source drive etc. is arranged in the housing of a back light unit, and make back light unit become a single assembly and disassembly unit, so the user is capable of automatic assembling, the dismounting back light unit, in other words, the user does not need to change individually light-emitting component, but with the back light unit integral replacing, therefore can keep the light-emitting component uniformity of back light unit, and then the useful life of keeping liquid crystal indicator.
Description of drawings
Fig. 1 is a schematic diagram, shows the cross sectional side view of available liquid crystal display unit;
Fig. 2 is a schematic diagram, shows the part decomposition side view according to the liquid crystal indicator of preferred embodiment of the present invention;
Fig. 3 is a schematic diagram, shows the combination of side view of liquid crystal indicator shown in Figure 2;
Fig. 4 is a schematic diagram, shows the combination of side view according to the liquid crystal indicator of another preferred embodiment of the present invention;
Fig. 5 is a schematic diagram, shows the combination of side view of the liquid crystal indicator of a preferred embodiment again according to the present invention;
Fig. 6 is a schematic diagram, and demonstration is according to the section schematic perspective view of the framework of the liquid crystal display of preferred embodiment of the present invention;
Fig. 7 is a schematic diagram, and demonstration is according to the section schematic perspective view of another framework of the liquid crystal display of preferred embodiment of the present invention.
Symbol description among the figure
3 liquid crystal displays
The demonstration side of 30 LCD panel
31 frameworks
310 accommodation spaces
311 first frame portions
312 second frame portions
313 first holding sections
32 LCD panel
321 liquid crystal layers
322 colored optical filtering substrates
323 thin-film transistor loop substrates
324 Polarizers
325 Polarizers
33 drive controlling loops
4 back light units
41 housings
411 second holding sections
42 light-emitting components
43 light source drives
44 diffuser plates
5 screw togather element
6 riveted elements
7 power lines
8 signal connecting lines
9 runners
Embodiment
Hereinafter with reference to relevant drawings, the liquid crystal indicator according to preferred embodiment of the present invention is described.In the present embodiment, liquid crystal indicator is a LCD TV.
As shown in Figure 2, liquid crystal indicator of the present invention comprises a liquid crystal display 3 and a back light unit 4.
As shown in Figure 2, liquid crystal display 3 has a framework 31, a LCD panel 32 1 drive controlling loops 33.
This framework 31 is along being located at this LCD panel 32 peripheries.In present embodiment, framework 31 can be integrally formed, or include one first frame portion 311 and one second frame portion 312 (as shown in Figure 6).LCD panel 32 includes a liquid crystal layer 321, a colored optical filtering substrates 322, a thin-film transistor loop substrate 323 at least, reaches two Polarizers 324,325.Liquid crystal layer 321 is folded in colored optical filtering substrates 322 and the thin-film transistor loop substrate 323, and these Polarizers 324,325 are arranged at a side of colored optical filtering substrates 322 and thin-film transistor loop substrate 323 respectively, that is Polarizer 324 is positioned at the demonstration side 30 of LCD panel.Drive controlling loop 33 is electrically connected in the thin-film transistor loop substrate 323 of LCD panel 32, and driving and control LCD panel 32, it is arranged in the accommodation space 310 of framework 31 of liquid crystal display 3.
Back light unit 4 has the light source drive 43 of a housing 41, at least one light-emitting component 42 and this light-emitting component 42 of driving.Light-emitting component 42 is arranged in the housing 41 with light source drive 43, and housing 41 mutually combines with framework 31, so that back light unit 4 is arranged at the opposite side of the demonstration side 30 of LCD panel 32.Certainly back light unit 4 more can comprise a diffuser plate 44 optical elements such as grade, so that the light source of light-emitting component 42 is projected to liquid crystal display 3 through diffuser plate 44 optical elements such as grade.In present embodiment, be cold cathode fluorescent lamp as the light-emitting component person of back light unit, generally speaking, also can be light-emitting diode or plane fluorescent lamp etc. as the light-emitting component person of back light unit.
As shown in Figures 2 and 3, the housing 41 of framework 31 and back light unit 4 screws togather element 5 by one and interconnects, so that back light unit 4 is incorporated into framework 31.At this moment, as shown in Figure 6, when including one first frame portion 311 and one second frame portion 312, then screw togather element 5 and promptly screw togather the housing 41 and the second frame portion 312, and then make back light unit 4 be incorporated into framework 31 as if framework 31.Certainly, except that utilizing screw-in version, as shown in Figure 4, the mode of connection that liquid crystal display 3 and back light unit are 4 more can utilize at least one riveted element 6 to carry out, that is the housing 41 of framework 31 and back light unit 4 interconnects by riveted element 6, so that back light unit 4 is incorporated into framework 31.Moreover, as shown in Figure 5, framework 31 is provided with one first holding section 313 more at least, and is provided with one second holding section 411 at least with respect to the housing 41 with the back light unit 4 of framework 31 engage side, first holding section 313 engages mutually with this second holding section 411, so that back light unit 4 is incorporated into framework 31.At this moment, as shown in Figure 7, when including one first frame portion 311 and one second frame portion 312 as if framework 31, then this first holding section 313 is arranged in the second frame portion 312 of framework 31.What this should be specified be, the variety of way of above-mentioned connection liquid crystal display 3 and back light unit 4 is only for exemplifying several explanations, and other connected mode all can be applicable to being connected of liquid crystal display 3 and 4 of back light units.
Again, as Fig. 2～shown in Figure 5, back light unit 4 more can comprise a power line 7 and a signal connecting line 8.One end of power line 7 is electrically connected at light source drive 43, and its other end electrically connects an external power source (not being shown among the figure) or electrically connect liquid crystal display 3.In addition, an end of signal connecting line is electrically connected at light source drive 43, and its other end is electrically connected at drive controlling loop 33.
From the above, no matter which kind of combination liquid crystal display 3 adopts with back light unit 4, the framework 31 of liquid crystal display 3 just can form the exterior case of complying with liquid crystal indicator of the present invention with the housing 41 of back light unit 4.
At last, as shown in Figure 4, more can comprise a runners 9 according to liquid crystal indicator of the present invention, this runners 9 is linked to framework 31, so that liquid crystal indicator can erect.Be, therefore can not hamper the assembling or the dismounting of back light unit 4 what this will specify because this runners 9 is linked to framework 31.
In sum, because of complying with liquid crystal indicator of the present invention is that light-emitting component and light source drive etc. is arranged in the housing of a back light unit, and make back light unit become a single assembling, removable unit, so the user is capable of automatic assembling, the dismounting back light unit, in other words, the user does not need to change individually light-emitting component, but with the back light unit integral replacing, therefore can keep the light-emitting component uniformity of back light unit, and then the useful life of keeping liquid crystal indicator.More detailed it, because of liquid crystal indicator of the present invention is that light-emitting component and light source drive etc. is arranged in the housing of a back light unit, and make back light unit become a single assembling, removable unit, therefore the liquid crystal display when a liquid crystal indicator does not have fault, and when singly having only the light-emitting component fault of back light unit, the user can merely change back light unit, so can continue the useful life of liquid crystal indicator.
The above only is an illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the scope of claims its equivalent modifications of carrying out or change.
Claims (13)
1. a LCD TV has an exterior case, it is characterized in that, described LCD TV comprises:
One liquid crystal display, have a framework, a LCD panel and a drive controlling loop, described framework is along being located at described LCD panel periphery, and described LCD panel has one and shows side, described drive controlling loop is arranged in the described framework, and electrically connects with described LCD panel;
One back light unit, light source drive with a housing, at least one light-emitting component and the described light-emitting component of a driving, described light-emitting component and described light source drive are arranged in the described housing, described housing and described framework mutually combine, so that described back light unit is arranged at the opposite side of the demonstration side of described LCD panel, the housing of described back light unit and the framework of described liquid crystal display form the exterior case of described LCD TV; And
One runners, described runners directly is linked to described framework, and described runners does not directly connect described back light unit.
2. LCD TV as claimed in claim 1 is characterized in that, described framework comprises one first frame portion and one second frame portion, and described first frame portion and the described second frame portion mutually combine and make described framework have an accommodation space.
3. LCD TV as claimed in claim 2 is characterized in that, described drive controlling loop is electrically connected in described LCD panel, and to drive and to control described LCD panel, it is arranged in the described accommodation space.
4. LCD TV as claimed in claim 1 is characterized in that, described LCD TV more comprises at least one element that screws togather, and describedly screws togather the housing that element connects described framework and described back light unit, so that described back light unit is incorporated into described framework.
5. LCD TV as claimed in claim 4, it is characterized in that, described framework comprises one first frame portion and one second frame portion, and the described element that screws togather connects the second frame portion of described framework and the housing of described back light unit, so that described back light unit is incorporated into the second frame portion of described framework.
6. LCD TV as claimed in claim 1, it is characterized in that, described framework is provided with one first holding section more at least, and be provided with one second holding section at least with respect to housing with the described back light unit of described framework engage side, described first holding section engages mutually with described second holding section, so that described back light unit is incorporated into described framework.
7. LCD TV as claimed in claim 6 is characterized in that, described framework comprises one first frame portion and one second frame portion, and described first holding section is arranged in the second frame portion of described framework.
8. LCD TV as claimed in claim 1 is characterized in that, described LCD TV more comprises at least one riveted element, and described riveted element connects the housing of described framework and described back light unit, so that described back light unit is incorporated into described framework.
9. LCD TV as claimed in claim 8, it is characterized in that, described framework comprises one first frame portion and one second frame portion, and described riveted element connects the second frame portion of described framework and the housing of described back light unit, so that described back light unit is incorporated into the second frame portion of described framework.
10. LCD TV as claimed in claim 1 is characterized in that, described back light unit is the Staight downward type backlight unit.
11. LCD TV as claimed in claim 1 is characterized in that, described back light unit more comprises a power line, and an end of described power line is electrically connected at described light source drive.
12. LCD TV as claimed in claim 1 is characterized in that, described LCD TV more comprises a signal connecting line, and an end of described signal connecting line is electrically connected at described light source drive, and its other end is electrically connected at described drive controlling loop.
13. LCD TV as claimed in claim 1 is characterized in that, described light-emitting component is cold cathode fluorescent lamp or plane fluorescent lamp or light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101659212A CN101686357B (en) | 2004-06-11 | 2004-06-11 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101659212A CN101686357B (en) | 2004-06-11 | 2004-06-11 | Liquid crystal display device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410049359 Division CN1707317A (en) | 2004-06-11 | 2004-06-11 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101686357A CN101686357A (en) | 2010-03-31 |
| CN101686357B true CN101686357B (en) | 2011-09-07 |
Family
ID=42049284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101659212A Expired - Fee Related CN101686357B (en) | 2004-06-11 | 2004-06-11 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101686357B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012253094A (en) * | 2011-05-31 | 2012-12-20 | Sony Corp | Electronic apparatus |
| KR101822657B1 (en) * | 2011-06-24 | 2018-03-09 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| KR101346083B1 (en) * | 2012-04-26 | 2013-12-31 | 엘지디스플레이 주식회사 | Display Device |
| CN104698828B (en) * | 2015-03-17 | 2017-06-06 | 深圳市华星光电技术有限公司 | Intelligent watch and liquid crystal display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5432626A (en) * | 1992-03-12 | 1995-07-11 | Hitachi, Ltd. | Liquid crystal display device with shield casing connected to frame holding the display above lower casing holding light source |
| US5574477A (en) * | 1993-09-30 | 1996-11-12 | Sanyo Electric Co., Inc. | Direct-vision/projection type liquid-crystal display |
| US6130658A (en) * | 1996-09-30 | 2000-10-10 | Sony Corporation | Back light assembly for flat panel display |
| CN2583900Y (en) * | 2002-12-04 | 2003-10-29 | 新巨企业股份有限公司 | Extraction type back-to-light module structure for liquid crystal TV |
-
2004
- 2004-06-11 CN CN2009101659212A patent/CN101686357B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5432626A (en) * | 1992-03-12 | 1995-07-11 | Hitachi, Ltd. | Liquid crystal display device with shield casing connected to frame holding the display above lower casing holding light source |
| US5574477A (en) * | 1993-09-30 | 1996-11-12 | Sanyo Electric Co., Inc. | Direct-vision/projection type liquid-crystal display |
| US6130658A (en) * | 1996-09-30 | 2000-10-10 | Sony Corporation | Back light assembly for flat panel display |
| CN2583900Y (en) * | 2002-12-04 | 2003-10-29 | 新巨企业股份有限公司 | Extraction type back-to-light module structure for liquid crystal TV |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101686357A (en) | 2010-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW594171B (en) | Liquid crystal display and light source device thereof | |
| KR100719923B1 (en) | Liquid crystal display module | |
| KR101368857B1 (en) | Light assembly and liquid crystal display having the same | |
| KR20120012150A (en) | Liquid crystal display device | |
| US8792066B2 (en) | Liquid crystal display module and front frame structure thereof | |
| JP2002258770A (en) | Vertical surface light source device and liquid crystal display device | |
| US10629141B2 (en) | Redundant backlight for electronic display | |
| US9170456B2 (en) | Direct backlight module and liquid crystal display module using the backlight module | |
| WO2012022066A1 (en) | Led back light module | |
| US20090059118A1 (en) | Backlight module with detachable illuminator support apparatus and liquid crystal display utilizing same | |
| KR20120054280A (en) | Liquid crystal display device | |
| US20050259192A1 (en) | Liquid crystal displaying device | |
| KR101836484B1 (en) | Backlgiht unit and liquid crystal display device the same | |
| CN101686357B (en) | Liquid crystal display device | |
| CN201527518U (en) | Liquid crystal display device | |
| KR20070119453A (en) | Backlight unit of liquid crystal display device | |
| KR20110113283A (en) | Light emitting diode backlight unit and liquid crystal display device having the same | |
| CN209912424U (en) | Double-sided display screen | |
| CN201004139Y (en) | Motorcar instrument LCD screen | |
| CN2583900Y (en) | Extraction type back-to-light module structure for liquid crystal TV | |
| CN1707317A (en) | Liquid crystal display device | |
| KR101071134B1 (en) | Liquid crystal display device module | |
| US20060132694A1 (en) | Low-cost integrated liquid crystal display monitor | |
| KR20100054663A (en) | Liquid crystal display device having tempered glass | |
| JP2007226171A (en) | Backlight module and liquid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20140611 |
|
| EXPY | Termination of patent right or utility model |