CN105372874A - Liquid crystal module set with uniformed brightness - Google Patents
Liquid crystal module set with uniformed brightness Download PDFInfo
- Publication number
- CN105372874A CN105372874A CN201510786873.4A CN201510786873A CN105372874A CN 105372874 A CN105372874 A CN 105372874A CN 201510786873 A CN201510786873 A CN 201510786873A CN 105372874 A CN105372874 A CN 105372874A
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- CN
- China
- Prior art keywords
- liquid crystal
- groove
- backlight module
- crystal module
- type liquid
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal module set with uniformed brightness. The liquid crystal module set comprises a pedestal, a backlight module set and a screen, wherein a cooling cavity is disposed in the pedestal; the cooling cavity is filled with gaseous or flow-state refrigerant; a refrigerating device is disposed in the cooling cavity; a groove is formed in the pedestal; and a first buckle structure is arranged on the side wall of the groove. A function surface of the backlight module set is provided with a plurality of circular lamp tubes; the plurality of circular lamp tubes are concentrically arranged; and a bulb is arranged in the circle center. Therefore, luminescence uniform degree of the function surface of the backlight module can be improved due to the concentrical arrangement method of the lamp tubes, so light ray utilization rate is improved and a shadow in the circle center can be avoided due to the arrangement of the bulb through the concentrical arrangement method; enough light on the whole function surface of the backlight module set can be guaranteed; and by the use of the reflection wall, light ray absorbing rate of the screen can be enhanced, light ray utilization rate is improved and unfavorable effects on the screen work due to light ray divergence can be avoided.
Description
Technical field
The present invention relates to liquid crystal display technical field, particularly relate to a kind of brightness uniformity type liquid crystal module.
Background technology
Liquid crystal indicator (LiquidCrystalDisplay, LCD) have that fuselage is thin, power saving, the many merits such as radiationless, be widely used, as: mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen etc.
Liquid crystal indicator major part on existing market is backlight liquid crystal indicator, and it comprises liquid crystal panel and backlight module (Backlightmodule).Usually, the structure of liquid crystal panel is by a colored filter substrate (ColorFilter), a thin-film transistor array base-plate (ThinFilmTransistorArraySubstrate, TFTArraySubstrate) and a liquid crystal layer (LiquidCrystalLayer) be configured between two substrates formed, its principle of work is by applying the rotation that driving voltage controls the liquid crystal molecule of liquid crystal layer on two panels glass substrate, the light refraction of backlight module out being produced picture.Because liquid crystal panel itself is not luminous, the light source provided by backlight module is needed to carry out normal show image, therefore, one of backlight module key component becoming liquid crystal indicator, the divergence of beam mode of backlight module directly has influence on the homogeneity of the brightness of display screen.
Summary of the invention
Based on the technical matters that background technology exists, the present invention proposes a kind of brightness uniformity type liquid crystal module.
A kind of brightness uniformity type liquid crystal module that the present invention proposes, comprises base, backlight module and screen; Chassis interior is provided with cooling chamber, is filled with the cold-producing medium of steam state or fluidised form in cooling chamber, and is provided with refrigerating plant in cooling chamber; Base is provided with groove, and recess sidewall is provided with the first buckle structure structure;
Backlight module is arranged in groove by the first buckle structure, shields and is arranged on base and fit formation annular seal space;
Backlight module functional surfaces is provided with multiple annular fluorescent tube, and multiple fluorescent tube arranged concentric, circle centre position is provided with a bulb; Be provided with multiple minute surface around backlight module, multiple minute surface is centered around the reflection wall of fluorescent tube periphery around being formed; Reflection wall is centered around screen periphery in the projection in screen face, place.
Preferably, cooling chamber is coated on groove periphery or is fitted in bottom portion of groove.
Preferably, be provided with many pipelines between backlight module and bottom portion of groove, pipe ends is all connected with base seal and is communicated with the chamber that lowers the temperature.
Preferably, many pipelines be arranged in parallel and are fixed on bottom portion of groove.
Preferably, be provided with temperature sensor in groove, base is provided with controller, and controller is connected with temperature sensor and refrigerating plant respectively, and detects the work of Numerical Control refrigerating plant according to temperature sensor.
Preferably, be preset with temperature threshold in controller, it controls refrigerating plant work according to the comparative result of temperature sensor detected value and temperature threshold.
Preferably, cooling is provided with stirring apparatus in chamber, and controller is connected with stirring apparatus, and controls it and refrigerating plant works simultaneously.
Preferably, bottom portion of groove is provided with multiple limited post, and backlight module is arranged on limited post.
Preferably, the quantity of limited post is no less than three, and limited post adopts resilient material to make.
Preferably, the first buckle structure structure is the annular groove at parcel backlight module edge.
In the present invention, backlight module functional surfaces is provided with multiple annular fluorescent tube, and multiple fluorescent tube arranged concentric, circle centre position is provided with a bulb.So, namely the fluorescent tube arrangement of concentric-ring pattern is utilized to improve the degree of uniformity of backlight module functional surfaces luminescence, improve light utilization, avoided again the shade of the circle centre position that arranged in concentric circles mode is brought by bulb, ensure that the abundance of the light of the whole functional surfaces of backlight module.The setting of reflection wall, can reflect fluorescent tube and giving out light of bulb, ensure that light is only present in the space that screen, reflection wall and backlight module surround into, thus avoid the waste of light, improve the contribution ratios of screen to light, improve light utilization, avoid dispersing of light to cause adverse effect to the work of screen.
In the present invention, the working temperature arranging controlling back light module in cooling chamber, the thermal accumlation avoiding its work to produce is too much thus burn out element.
Accompanying drawing explanation
Fig. 1 is a kind of brightness uniformity type liquid crystal display module structure schematic diagram that the present invention proposes;
Fig. 2 is that schematic diagram arranged by fluorescent tube bulb.
Embodiment
With reference to Fig. 1, a kind of brightness uniformity type liquid crystal module that the present invention proposes, comprises base 1, backlight module 2 and screen 3.Base 1 inside is provided with cooling chamber 10, is filled with the cold-producing medium of steam state or fluidised form, as freon or condensate water in cooling chamber 10.Cooling is provided with refrigerating plant 4 for carrying out cold compensation to cold-producing medium in chamber 10.
Base 1 is provided with groove 11, and groove 11 sidewall is provided with the first buckle structure structure 5, and in present embodiment, the first buckle structure structure 5 is annular groove.Backlight module 2 is arranged in groove 11 by the first buckle structure 5, and screen 3 is arranged on base 1 and fit 11 forms annular seal space.
With reference to Fig. 2, backlight module 2 functional surfaces is provided with multiple annular fluorescent tube 6A, and multiple fluorescent tube 6A arranged concentric, circle centre position is provided with a bulb 6B.So, namely the fluorescent tube arrangement of concentric-ring pattern is utilized to improve the degree of uniformity of backlight module 2 functional surfaces luminescence, improve light utilization, avoided again the shade of the circle centre position that arranged in concentric circles mode is brought by bulb 6B, ensure that the abundance of the light of the whole functional surfaces of backlight module 2.
In present embodiment, be provided with multiple minute surface around backlight module 2, multiple minute surface is centered around the reflection wall 7 of fluorescent tube 6A periphery around being formed, reflection wall 7 is centered around screen 3 periphery in the projection in face, screen 3 place.The setting of reflection wall 7, can reflect fluorescent tube 6A and giving out light of bulb 6B, ensure that light is only present in the space that screen 3, reflection wall 7 and backlight module 2 surround into, thus avoid the waste of light, improve the contribution ratios of screen 3 pairs of light, improve light utilization, avoid dispersing of light to cause adverse effect to the work of screen 3.
In present embodiment, the setting in cooling chamber 10 is working temperatures in order to control backlight module 2, and the thermal accumlation avoiding its work to produce is too much thus burn out element.Cooling chamber 10 can be coated on groove 11 periphery or be fitted in bottom groove 11
In present embodiment, be provided with many pipelines 8 between bottom backlight module 2 and groove 11, pipeline 8 two ends are all tightly connected with base 1 and are communicated with the chamber 10 that lowers the temperature.Particularly, many pipelines 8 be arranged in parallel and are fixed on bottom groove 11.Be provided with temperature sensor in groove 11, base 1 is provided with controller, and cooling is also provided with stirring apparatus 9 in chamber 10.Controller is connected with temperature sensor, refrigerating plant 4 and stirring apparatus 9 respectively.Temperature threshold is preset with in controller, it is according to acquisition temperature sensor detected value, and by detected value and temperature threshold, when detected value is greater than temperature threshold, controller controls refrigerating plant 4 and stirring apparatus 9 works, and the former carries out temperature compensation to cold-producing medium, and the latter stirs cold-producing medium, thus make cold-producing medium that in pipeline 8, cold scatters and disappears carry out convection current with the cold-producing medium in cooling chamber 10, thus ensure the control of pipeline 8 inner refrigerant to the temperature of groove 11 inside and backlight module 2 working environment.
In present embodiment, be provided with multiple limited post 12 bottom groove 11, backlight module 2 is arranged on limited post 12, limited post 12 adopts resilient material to make, to cushion backlight module 2 in vibration environment, thus ensure the stable of light, improve the homogeneity of screen 3 brightness.In present embodiment, the quantity of limited post 12 is no less than three, to ensure the relatively stable of structure.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a brightness uniformity type liquid crystal module, is characterized in that, comprises base (1), backlight module (2) and screen (3); Base (1) inside is provided with cooling chamber (10), is filled with the cold-producing medium of steam state or fluidised form in cooling chamber (10), and is provided with refrigerating plant (4) in cooling chamber (10); Base (1) is provided with groove (11), and groove (11) sidewall is provided with the first buckle structure structure (5);
Backlight module (2) is arranged in groove (11) by the first buckle structure (5), and screen (3) is arranged on the upper also fit (11) of base (1) and forms annular seal space;
Backlight module (2) functional surfaces is provided with multiple annular fluorescent tube (6A), and multiple fluorescent tube (6A) arranged concentric, circle centre position is provided with a bulb (6B); Backlight module (2) is provided with multiple minute surface around, and multiple minute surface is centered around the reflection wall (7) of fluorescent tube (6A) periphery around formation; Reflection wall (7) is centered around screen (3) periphery in the projection in screen (3) face, place.
2. brightness uniformity type liquid crystal module as claimed in claim 1, is characterized in that, cooling chamber (10) is coated on groove (11) periphery or is fitted in groove (11) bottom.
3. brightness uniformity type liquid crystal module as claimed in claim 1, it is characterized in that, be provided with many pipelines (8) between backlight module (2) and groove (11) bottom, pipeline (8) two ends are all tightly connected with base (1) and are communicated with the chamber (10) that lowers the temperature.
4. brightness uniformity type liquid crystal module as claimed in claim 3, is characterized in that, many pipelines (8) be arranged in parallel and are fixed on groove (11) bottom.
5. brightness uniformity type liquid crystal module as claimed in claim 3, it is characterized in that, groove is provided with temperature sensor in (11), base (1) is provided with controller, controller is connected with temperature sensor and refrigerating plant (4) respectively, and detects Numerical Control refrigerating plant (4) work according to temperature sensor.
6. brightness uniformity type liquid crystal module as claimed in claim 5, is characterized in that, be preset with temperature threshold in controller, and it controls refrigerating plant (4) according to the comparative result of temperature sensor detected value and temperature threshold and works.
7. brightness uniformity type liquid crystal module as claimed in claim 6, it is characterized in that, be provided with stirring apparatus (9) in cooling chamber (10), controller is connected with stirring apparatus (9), and controls it and refrigerating plant (4) works simultaneously.
8. brightness uniformity type liquid crystal module as claimed in claim 1, is characterized in that, groove (11) bottom is provided with multiple limited post (12), and backlight module (2) is arranged on limited post (12).
9. brightness uniformity type liquid crystal module as claimed in claim 8, it is characterized in that, the quantity of limited post (12) is no less than three, and limited post (12) adopts resilient material to make.
10. brightness uniformity type liquid crystal module as claimed in claim 1, is characterized in that, the first buckle structure structure (5) is the annular groove at parcel backlight module (2) edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510786873.4A CN105372874A (en) | 2015-11-14 | 2015-11-14 | Liquid crystal module set with uniformed brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510786873.4A CN105372874A (en) | 2015-11-14 | 2015-11-14 | Liquid crystal module set with uniformed brightness |
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| Publication Number | Publication Date |
|---|---|
| CN105372874A true CN105372874A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510786873.4A Pending CN105372874A (en) | 2015-11-14 | 2015-11-14 | Liquid crystal module set with uniformed brightness |
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| CN (1) | CN105372874A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089739A (en) * | 1997-09-30 | 2000-07-18 | Sony Corporation | Surface light source device |
| CN1525810A (en) * | 2003-01-31 | 2004-09-01 | ��ʽ���綫֥ | Electronic apparatus having heat-generating components to be cooled with liquid coolant |
| CN1538216A (en) * | 2003-04-15 | 2004-10-20 | 奇美电子股份有限公司 | Directly downward thin back light module |
| CN1641440A (en) * | 2004-01-15 | 2005-07-20 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| CN1932603A (en) * | 2005-09-16 | 2007-03-21 | 鸿富锦精密工业（深圳）有限公司 | Direct-downward back light module |
| CN201041607Y (en) * | 2007-04-13 | 2008-03-26 | 群康科技(深圳)有限公司 | Direct down backlight module and LCD |
| CN201083366Y (en) * | 2007-08-24 | 2008-07-09 | 刘强 | Ceiling lamp chassis |
| CN201455265U (en) * | 2009-05-19 | 2010-05-12 | 方喜 | Combined zinc-powder production condensing device |
| CN101943823A (en) * | 2005-12-28 | 2011-01-12 | 株式会社半导体能源研究所 | Display device |
| CN201760351U (en) * | 2010-06-30 | 2011-03-16 | 安徽安科生物工程（集团）股份有限公司 | Cooling system of centrifugal machine |
| CN203830704U (en) * | 2013-12-19 | 2014-09-17 | 珠海嵘泰有色金属铸造有限公司 | Mould forming cooling system |
| CN104196830A (en) * | 2014-08-18 | 2014-12-10 | 格力电器（芜湖）有限公司 | Hydraulic device |
-
2015
- 2015-11-14 CN CN201510786873.4A patent/CN105372874A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089739A (en) * | 1997-09-30 | 2000-07-18 | Sony Corporation | Surface light source device |
| CN1525810A (en) * | 2003-01-31 | 2004-09-01 | ��ʽ���綫֥ | Electronic apparatus having heat-generating components to be cooled with liquid coolant |
| CN1538216A (en) * | 2003-04-15 | 2004-10-20 | 奇美电子股份有限公司 | Directly downward thin back light module |
| CN1641440A (en) * | 2004-01-15 | 2005-07-20 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| CN1932603A (en) * | 2005-09-16 | 2007-03-21 | 鸿富锦精密工业（深圳）有限公司 | Direct-downward back light module |
| CN101943823A (en) * | 2005-12-28 | 2011-01-12 | 株式会社半导体能源研究所 | Display device |
| CN201041607Y (en) * | 2007-04-13 | 2008-03-26 | 群康科技(深圳)有限公司 | Direct down backlight module and LCD |
| CN201083366Y (en) * | 2007-08-24 | 2008-07-09 | 刘强 | Ceiling lamp chassis |
| CN201455265U (en) * | 2009-05-19 | 2010-05-12 | 方喜 | Combined zinc-powder production condensing device |
| CN201760351U (en) * | 2010-06-30 | 2011-03-16 | 安徽安科生物工程（集团）股份有限公司 | Cooling system of centrifugal machine |
| CN203830704U (en) * | 2013-12-19 | 2014-09-17 | 珠海嵘泰有色金属铸造有限公司 | Mould forming cooling system |
| CN104196830A (en) * | 2014-08-18 | 2014-12-10 | 格力电器（芜湖）有限公司 | Hydraulic device |
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Application publication date: 20160302 |