CN1299156C - Supporting diffusion plate - Google Patents
Supporting diffusion plate Download PDFInfo
- Publication number
- CN1299156C CN1299156C CNB031579655A CN03157965A CN1299156C CN 1299156 C CN1299156 C CN 1299156C CN B031579655 A CNB031579655 A CN B031579655A CN 03157965 A CN03157965 A CN 03157965A CN 1299156 C CN1299156 C CN 1299156C
- Authority
- CN
- China
- Prior art keywords
- display panel
- light source
- diffuser plate
- lcd
- backlight assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The present invention relates to a supporting diffusion plate which can be applied to a liquid crystal display. The liquid crystal display comprises a display panel and a backlight assembly, wherein the backlight assembly at least comprises a light source and a lamp holder; the light source provides the required light for the display panel; the lamp holder is used for carrying the light source; the supporting diffusion plate is arranged between the light source and the display panel; the supporting diffusion plate is made of glass which has the effects of diffusing the light and supporting the display panel. The supporting diffusion plate of the present invention can prevent the phenomena of temperature distortion twist and yellowing. The supporting diffusion plate can substitute known supporting plates and diffusion plates, reduce assembly number, reduce the integrated thickness of the liquid crystal display, and enhance the manufacturing qualified rate of the 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 the glass substrate of a surface atomizing, 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 the glass substrate of a surface atomizing, 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 assembly, 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 (8)
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 the glass substrate of a surface atomizing, has diffusion light and supports the effect of this display panel.
2. support diffuser plate as claimed in claim 1 is characterized in that in the surface coated of this glass substrate one burning material being arranged.
3. support diffuser plate as claimed in claim 2 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).
4. support diffuser plate as claimed in claim 1 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.
5. 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 the glass substrate of a surface atomizing, has the effect of spreading light and this display panel of support simultaneously.
6. LCD as claimed in claim 5 is characterized in that in the surface coated of this glass substrate the burning material being arranged.
7. LCD as claimed in claim 6 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).
8. LCD as claimed in claim 5 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 CN1591129A (en) | 2005-03-09 |
| CN1299156C true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266357B (en) * | 2007-03-13 | 2012-11-07 | 大日本印刷株式会社 | Optical member, surface light unit, and liquid crystal display |
Families Citing this family (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 |
| KR102233127B1 (en) * | 2014-10-14 | 2021-03-26 | 엘지디스플레이 주식회사 | Guide panel and liquid display device including the same |
| 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 |
| 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 |
Citations (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 |
| US20020113924A1 (en) * | 2001-02-16 | 2002-08-22 | Hitachi, Ltd. | Liquid crystal display device |
-
2003
- 2003-09-01 CN CNB031579655A patent/CN1299156C/en not_active Expired - Lifetime
Patent Citations (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 |
| US20020113924A1 (en) * | 2001-02-16 | 2002-08-22 | Hitachi, Ltd. | Liquid crystal display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266357B (en) * | 2007-03-13 | 2012-11-07 | 大日本印刷株式会社 | Optical member, surface light unit, and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1591129A (en) | 2005-03-09 |
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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 |