CN1591129A - Supporting diffusion plate - Google Patents
Supporting diffusion plate Download PDFInfo
- Publication number
- CN1591129A CN1591129A CNA031579655A CN03157965A CN1591129A CN 1591129 A CN1591129 A CN 1591129A CN A031579655 A CNA031579655 A CN A031579655A CN 03157965 A CN03157965 A CN 03157965A CN 1591129 A CN1591129 A CN 1591129A
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- CN
- China
- Prior art keywords
- diffuser plate
- display panel
- light source
- lcd
- support
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- 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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- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention relates to supporting scattering plate which can be used in a liquid crystal display. Said liquid crystal display includes a display panel and a backlight component, the backlight component at least includes a light source and a lamp holder. The light source can be used for providing light required for display panel, and the lamp holder is used for bearing light source. The supporting scattering plate is placed between the light source and display panel, and its material is glass. Said supporting scattering plate has the action of scattering light and supporting display panel simultaneously. Said invented supporting scattering plate can avoid the phenomena of heated deformation twist and xanthochoism, and can be sustituted for conventional supporting plate and scattering plate so as to reduce the integrated thickness of liquid crystal display.
Description
(1) technical field
The relevant a kind of support diffuser plate of the present invention, and particularly relevant a kind of support diffuser plate that is applied to a LCD.
(2) background technology
Because LCD (Liquid Crystal Display, LCD) have whole plane and frivolous build, save space and in light weight, add superiority such as bigger indication range, picture do not glimmer, low power consumption, low electromagenetic wave radiation, low heat radiation, (Cathode Ray Tube, CRT) display becomes the standard outfit of computer to make it to replace gradually traditional iconoscope.
For general large scale liquid crystal display or TV (TV) display more than 20 o'clock, need to dispose in addition the weight that a back up pad is carried the large scale display panel in the light source top of backlight assembly, and the agent structure of forced fluid crystal display.The configuration of back up pad can be avoided the diastrophic situation of large scale display panel generation, and then influences the display quality of LCD.
Please refer to Fig. 1, it is the decomposing schematic representation of conventional liquid crystal.In Fig. 1, LCD 100 includes a display panels 110 and a direct type backlight assembly 120 at least.Backlight assembly 120 can provide display panels 110 even and sufficient light, to show preferable image display quality.Backlight assembly 120 comprises optical sheet 111, a diffuser plate (diffusing plate) 112, one back up pad 113, a reflector plate 115, a plurality of light source 114 and a lamp socket 116 of being made up of prismatic lens (prism) and diffusion sheet (diffuser sheet).Light source 114 is a plurality of cold-cathode tubes that are arranged in parallel, and lamp socket 116 is in order to put a plurality of light sources 114.Dispose reflector plate 115 in light source 114 belows, in order to reflection ray.Back up pad 113 is disposed on the light source 114, in order to the weight of carrying display panels 110, and the agent structure of forced fluid crystal display 100.Optical sheet 111 and diffuser plate 112 are disposed on the back up pad 113, in order to will spread and be directed to display panels 110 equably from the light that light source 114 is dispersed.
Yet the material of back up pad 113 mostly adopts as acryl plastic materials such as (PMMA) at present.Since the stress intensity of the material character of acryl own a little less than, if desire to make back up pad to have the weight that to carry whole display panel 110, then must adopt the acryl of suitable thickness just can reach, for example the thickness of general back up pad 113 is about 8 millimeters (mm) ~ 10 millimeter (mm).And generally can use interval material stitch (spacer pin) to strengthen its anchorage force, to avoid the phenomenon of distortion (warp).Moreover, because the acryl material is in use for some time, can yellow gradually, so back up pad 113 is in use for some time, easy yellow and embrittlement.In addition, because of the thermotolerance of acryl material not good, when as the cold-cathode tube divergent rays of light source 114, the high temperature that the electrode heating is produced, cause easily back up pad 113 with and on assembly such as optical sheet 111, diffuser plate 112 be heated and cause distortion, influence the display quality of whole LCD 100, reduce and produce yield.
(3) summary of the invention
In view of this, the purpose of this invention is to provide a kind of support diffuser plate, glass by an atomizing forms, have and spread light and the effect of supporting display panel simultaneously, and can keep from heat and distort and the phenomenon of yellow, to replace known back up pad and diffuser plate, reduce components, make the thickness of LCD integral body reduce, and improve the fine ratio of product of LCD.
According to purpose of the present invention, a kind of support diffuser plate is proposed, can be applicable in the LCD.LCD comprises a display panel and a backlight assembly.Backlight assembly comprises a light source and a lamp socket at least.Light source provides display panel required light, and lamp socket is in order to the carrying light source.Supporting diffuser plate is disposed between light source and the display panel.The material that supports diffuser plate is a glass, has to spread light and the effect of supporting display panel simultaneously.
According to purpose of the present invention, a kind of LCD with a support diffuser plate is proposed.LCD comprises a display panel and a backlight assembly, and backlight assembly is positioned at the below of display panel.Backlight assembly comprises that at least a light source, a lamp socket and support diffuser plate.Light source provides display panel required light, and lamp socket is in order to the carrying light source.The glass support plate is disposed between light source and the display panel, and this material that supports diffuser plate is glass, has and spreads light and the effect of supporting display panel simultaneously.
For above-mentioned purpose of the present invention, characteristics and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. is elaborated as follows:
(4) description of drawings
Fig. 1 is the decomposing schematic representation of conventional liquid crystal.
Fig. 2 is the decomposing schematic representation according to the LCD of preferred embodiment of the present invention.
(5) embodiment
Please refer to Fig. 2, it is the decomposing schematic representation according to the LCD of preferred embodiment of the present invention.In Fig. 2, LCD 200 comprises a display panels 210 and a direct type backlight assembly 220 at least.Backlight assembly 220 is positioned at the below of display panels 210, and backlight assembly 220 can provide display panel 210 even and sufficient light, to show preferable image display quality.Backlight assembly 220 comprises that an optical sheet 211, a reflector plate 215, light source 214, a lamp socket 216 and support diffuser plate 219.Optical sheet 211 for example is made up of prismatic lens (prism) and diffusion sheet (diffuser sheet).Light source 214 for example is a plurality of cold-cathode tubes that are arranged in parallel, and lamp socket 216 is in order to put light source 214.Dispose reflector plate 215 in light source 214 belows, in order to reflection ray.Support diffuser plate 219 and be disposed on the light source 214, in order to the weight of carrying display panels 210, and the agent structure of forced fluid crystal display 100.Optical sheet 211 is disposed on the glass support plate 219.After the light of being dispersed from light source 214 sees through and supports diffuser plate 219 and optical sheet 211, spread equably and be led on the corresponding pixel of display panel 210, with display frame.
The material that supports diffuser plate 219 is a glass, and support diffuser plate 219 is the glass substrate of a surface atomizing.At this, enumerate and to form two instantiations that support diffuser plate 219.One, the coating metal oxidation material is on the surface of a glass substrate.The burning material is selected from by alundum (Al (Al
2O
3), zirconia (ZrO
2), diboron trioxide (B-
2O
3), zinc paste (ZnO), three oxidation disodium (Na
2O
3), Potassium oxide (K
2O
3), Lithia (Li
2O) and cerium oxide (CeO
2).For example be mode with sputter be coated with above-mentioned wherein any or mix and comprise that above-mentioned burning material more than any two is on the surface of glass substrate.Its two, use one to include silicon dioxide (SiO
2) tackness material coating thin film on the surface of glass substrate.
Because acryl is different with the material behavior of glass, be support diffuser plate 219 light-permeables of material with glass, and the surface of glass atomize handle after, just can have the effect that light is evenly spread as known diffuser plate 112.In addition, because the stress-strength ratio acryl that glass can bear is big, under the condition of identical stress intensity demand, the required thickness thickness required than acryl of glass is little.Event is that the support diffuser plate 219 required thickness of material reduce than known back up pad 113 with glass, only need very thin thickness can reach the effect of carrying display panel 210, the thickness that for example supports diffuser plate 219 can only be that 2 millimeters (mm) ~ 3 millimeter (mm) promptly have enough stress intensities.Like this, use the formed support diffuser plate 219 of glass of an atomizing, have and spread light and the effect of supporting display panel simultaneously, can replace known back up pad 113 and diffuser plate 112, reduce components, make the thickness of LCD 200 integral body reduce.
Moreover, because of glass material can bear stronger stress, do not need again the phenomenons of using interval material stitch (spacer pin) to avoid distortion (warp) so support diffuser plate 219 more, and glass is difficult for yellow, heat-resisting effect is good, can prevent to support diffuser plate 219 yellows and avoid supporting diffuser plate 219 temperature distortions, can improve the yield of whole LCD 200.
In sum; though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any person skilled in the art person without departing from the spirit and scope of the present invention; change with equivalence and replace when making various equivalence, so protection scope of the present invention is when looking being as the criterion that accompanying Claim defines.
Claims (12)
1. one kind is supported diffuser plate, is used for a LCD, and this LCD comprises a display panel and a backlight assembly, and wherein, this backlight assembly comprises at least:
One light source provides this display panel required light; And
One lamp socket is in order to carry this light source;
Wherein, this support diffuser plate is disposed between this light source and this display panel, and the material of this support diffuser plate is glass, has diffusion light and supports the effect of this display panel.
2. support diffuser plate as claimed in claim 1 is characterized in that the glass substrate that this support diffuser plate is a surface atomizing.
3. support diffuser plate as claimed in claim 2 is characterized in that in the surface coated of this glass substrate one burning material being arranged.
4 support diffuser plates as claimed in claim 3 is characterized in that this burning material is to be selected from alundum (Al (Al
2O
3), zirconia (ZrO
2), diboron trioxide (B-
2O
3), zinc paste (ZnO), three oxidation disodium (Na
2O
3), Potassium oxide (K
2O
3), Lithia (Li
2O) and cerium oxide (CeO
2).
5. support diffuser plate as claimed in claim 3 is characterized in that this burning material comprises alundum (Al (Al
2O
3), zirconia (ZrO
2), diboron trioxide (B-
2O
3), zinc paste (ZnO), three oxidation disodium (Na
2O
3), Potassium oxide (K
2O
3), Lithia (Li
2O) and cerium oxide (CeO
2).
6. support diffuser plate as claimed in claim 2 is characterized in that having one to include silicon dioxide (SiO in the surface coated of this glass substrate
2) the thin layer of tackness material.
7. a LCD comprises a display panel and a backlight assembly, and this backlight assembly is positioned at the below of this display panel, and this backlight assembly comprises:
One light source provides this display panel required light;
One lamp socket is in order to carry this light source; And
One supports diffuser plate, is to be disposed between this light source and this display panel, and the material of this support diffuser plate is glass, has the effect of spreading light and this display panel of support simultaneously.
8. LCD as claimed in claim 7 is characterized in that the glass substrate that this support diffuser plate is a surface atomizing.
9. LCD as claimed in claim 8 is characterized in that in the surface coated of this glass substrate the burning material being arranged.
10. LCD as claimed in claim 9 is characterized in that this burning material is to be selected from alundum (Al (Al
2O
3), zirconia (ZrO
2), diboron trioxide (B-
2O
3), zinc paste (ZnO), three oxidation disodium (Na
2O
3), Potassium oxide (K
2O
3), Lithia (Li
2O) and cerium oxide (CeO
2).
11. LCD as claimed in claim 9 is characterized in that this burning material comprises alundum (Al (Al
2O
3), zirconia (ZrO
2), diboron trioxide (B-
2O
3), zinc paste (ZnO), three oxidation disodium (Na
2O
3), Potassium oxide (K
2O
3), Lithia (Li
2O) and cerium oxide (CeO
2).
12. LCD as claimed in claim 8 is characterized in that having one to include silicon dioxide (SiO in the surface coated of this glass substrate
2) the thin layer of tackness material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031579655A CN1299156C (en) | 2003-09-01 | 2003-09-01 | Supporting diffusion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031579655A CN1299156C (en) | 2003-09-01 | 2003-09-01 | Supporting diffusion plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1591129A true CN1591129A (en) | 2005-03-09 |
| CN1299156C CN1299156C (en) | 2007-02-07 |
Family
ID=34598581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031579655A Expired - Lifetime CN1299156C (en) | 2003-09-01 | 2003-09-01 | Supporting diffusion plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1299156C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100399065C (en) * | 2006-04-25 | 2008-07-02 | 友达光电股份有限公司 | Optical diffusion plate and backlight module using the optical diffusion plate |
| CN105448195A (en) * | 2015-12-16 | 2016-03-30 | 小米科技有限责任公司 | Display device and electronic equipment |
| CN105511137A (en) * | 2014-10-14 | 2016-04-20 | 乐金显示有限公司 | Support structure and liquid crystal display device including same |
| CN109633979A (en) * | 2019-01-23 | 2019-04-16 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN111221173A (en) * | 2019-11-06 | 2020-06-02 | 惠州市华星光电技术有限公司 | Backlight module and display device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4935438B2 (en) * | 2007-03-13 | 2012-05-23 | 大日本印刷株式会社 | Backlight unit for liquid crystal display panel and liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001092368A (en) * | 1999-09-24 | 2001-04-06 | Toshiba Lighting & Technology Corp | Back light device and liquid crystal display device |
| CN2434586Y (en) * | 2000-07-21 | 2001-06-13 | 台湾得意温控科技股份有限公司 | Light hood temp control indicator for freezing air conditioner |
| CN2459575Y (en) * | 2001-01-06 | 2001-11-14 | 海尔集团公司 | Screen installation box for controller of cabinet type air conditioner |
| JP3803554B2 (en) * | 2001-02-16 | 2006-08-02 | 株式会社日立製作所 | Liquid crystal display |
-
2003
- 2003-09-01 CN CNB031579655A patent/CN1299156C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100399065C (en) * | 2006-04-25 | 2008-07-02 | 友达光电股份有限公司 | Optical diffusion plate and backlight module using the optical diffusion plate |
| CN105511137A (en) * | 2014-10-14 | 2016-04-20 | 乐金显示有限公司 | Support structure and liquid crystal display device including same |
| CN105511137B (en) * | 2014-10-14 | 2019-08-16 | 乐金显示有限公司 | Supporting structure and liquid crystal display device including supporting structure |
| CN105448195A (en) * | 2015-12-16 | 2016-03-30 | 小米科技有限责任公司 | Display device and electronic equipment |
| CN109633979A (en) * | 2019-01-23 | 2019-04-16 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN111221173A (en) * | 2019-11-06 | 2020-06-02 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| CN111221173B (en) * | 2019-11-06 | 2021-07-06 | 惠州市华星光电技术有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1299156C (en) | 2007-02-07 |
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| 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 | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20070207 |