CN201425630Y - multi-reflectivity reflecting plate and backlight module thereof - Google Patents
multi-reflectivity reflecting plate and backlight module thereof Download PDFInfo
- Publication number
- CN201425630Y CN201425630Y CN 200920137989 CN200920137989U CN201425630Y CN 201425630 Y CN201425630 Y CN 201425630Y CN 200920137989 CN200920137989 CN 200920137989 CN 200920137989 U CN200920137989 U CN 200920137989U CN 201425630 Y CN201425630 Y CN 201425630Y
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- reflecting part
- reflecting
- reflectivity
- reflector plate
- multiple reflection
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Abstract
The utility model provides a multi-reflectivity reflecting plate and a backlight module thereof. The multi-reflectivity reflecting plate comprises the multi-reflectivity reflecting plate provided withpluralities of first reflecting portions and pluralities of second reflecting portions, each first reflecting portion is arranged on one side of each second reflecting portion, reflectivity of the second reflecting portions is larger than that of the first reflecting portions; the backlight module of the multi-reflectivity reflecting plate consists of a back frame, the multi-reflectivity reflecting plate disposed on the back frame, a plurality of light sources and an optical film group, the light sources are respectively disposed on the front upper portions of the first reflecting portions, the optical film group is arranged on the upper portions of the light sources. The multi-reflectivity reflecting plate and the backlight module thereof have the advantages that the second reflecting portions improve brightness above the position between two light sources, and the first reflecting portions and the second reflecting portions enable the light sources to emit evenly bright light to theoptical film group.
Description
[technical field]
The utility model is about a kind of parts of liquid crystal indicator, and particularly about a kind of multiple reflection rate reflector plate and backlight film group thereof, the reflectivity that it is applied to improve reflector plate makes backlight film group emitting uniform field.
[background technology]
Because the manufacturing technology of liquid crystal indicator is progressive fast, with and have light, thin, power saving and an advantage such as radiationless, therefore make liquid crystal indicator be applied in widely on the industries such as personal digital assistant, mobile computer, LCD screen and TV, but because liquid crystal indicator is not a self-luminous display device, so need to cooperate the light source that module backlight provided, could show the picture that will show.Existing a kind of module 1a backlight as shown in Figure 1, comprising: a back of the body frame 11a; One is located at the reflector plate 12a on the back of the body frame 11a; Be located at a plurality of light source 13a of reflector plate 12a top; An and optical diaphragm group 14a who is located at a plurality of light source 13a top.Because existing reflector plate 12a has identical reflectivity, when a plurality of light source 13a bright dipping during to this optical diaphragm group 14a, brightness meeting directly over the light source is brighter, and the brightness meeting of top is darker between light source and light source, can on optical diaphragm group 14, produce dark line and bright rays, the i.e. phenomenon of look inequality (mura) like this.When particularly the spacing between light source and the light source strengthens or the spacing between diffuser plate and the reflector plate reduce and light mixing distance when not enough the phenomenon of this look inequality (mura) of easier generation.
[summary of the invention]
One of technical problem to be solved in the utility model is to provide a kind of multiple reflection rate reflector plate of avoiding producing the look uneven phenomenon.
Two of technical problem to be solved in the utility model is to provide a kind of module backlight of avoiding producing the multiple reflection rate reflector plate of look uneven phenomenon.
The utility model is what one of to solve the problems of the technologies described above by the following technical solutions: a kind of multiple reflection rate reflector plate, this multiple reflection rate reflector plate has a plurality of first reflecting parts and a plurality of second reflecting part, one side of described second reflecting part is provided with this first reflecting part, and the reflectivity of described second reflecting part is greater than the reflectivity of this first reflecting part.
This multiple reflection rate reflector plate also comprises a plurality of the 3rd reflecting parts, and the 3rd reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 3rd reflecting part is identical with the reflectivity of this first reflecting part.
This multiple reflection rate reflector plate also comprises a plurality of the 4th reflecting parts, and the 4th reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 4th reflecting part is less than the reflectivity of this first reflecting part.
The utility model be solve the problems of the technologies described above by the following technical solutions two: a kind of module backlight of multiple reflection rate reflector plate, comprise a back of the body frame, one is located at the reflector plate on this back of the body frame, be located at a plurality of light sources of reflector plate top, an and optical diaphragm group of being located at the top of these a plurality of light sources, described reflector plate is a multiple reflection rate reflector plate, this multiple reflection rate reflector plate has a plurality of first reflecting parts and a plurality of second reflecting part, wherein a side of this second reflecting part is provided with this first reflecting part, and the reflectivity of this second reflecting part is greater than the reflectivity of this first reflecting part, these a plurality of light sources be located at respectively these a plurality of first reflecting parts directly over.
This multiple reflection rate reflector plate also comprises a plurality of the 3rd reflecting parts, and the 3rd reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 3rd reflecting part is identical with the reflectivity of this first reflecting part.
This multiple reflection rate reflector plate also comprises a plurality of the 4th reflecting parts, and the 4th reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 4th reflecting part is less than the reflectivity of this first reflecting part.
This light source is a fluorescent tube.
The utility model multiple reflection rate reflector plate and module backlight thereof have following advantage:
1, can make in the module backlight a plurality of light source bright dippings even,, promptly avoid (mura) phenomenon of look inequality to avoid on optical diaphragm group, producing dark line and bright rays to the brightness of optical diaphragm group.
2, in the time of solving spacing between light source and the light source and strengthen, the look uneven phenomenon that is caused is so can reduce the number of light sources in the module backlight, and reach cost-effective purpose under the condition that satisfies module emitting brightness backlight.
3, can avoid because of the spacing between diffuser plate and the reflector plate reduces to cause the light mixing distance deficiency, the look uneven phenomenon that is produced, and then the thickness of module backlight is reduced, to reach purpose of thinness.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the part synoptic diagram of existing module backlight.
Fig. 2 is the part synoptic diagram of the utility model embodiment one module backlight.
Fig. 3 is the part synoptic diagram of the utility model embodiment two modules backlight.
Fig. 4 is the part synoptic diagram of the utility model embodiment three modules backlight.
[embodiment]
Embodiment one
The module backlight 1 of the multiple reflection rate reflector plate of the utility model embodiment one as shown in Figure 2, comprising: a back of the body frame 11; One is located at the multiple reflection rate reflector plate 12 on the back of the body frame 11, multiple reflection rate reflector plate 12 has a plurality of first reflecting parts 121 and a plurality of second reflecting part 122, wherein a side of second reflecting part 122 is provided with first reflecting part 121, and the reflectivity of second reflecting part 122 is greater than the reflectivity of first reflecting part 121; A plurality of light sources 13, its be located at respectively a plurality of first reflecting parts 121 directly over, and light source 13 is a fluorescent tube; And an optical diaphragm group 14, it is located at the top of a plurality of light sources 13; Wherein second reflecting part 122 improves the brightness of 13 tops of two light sources, first reflecting part 121 like this and second reflecting part 122 make a plurality of light source 13 bright dippings even to the brightness of optical diaphragm group 14, avoiding on the optical diaphragm group 14 producing dark line and bright rays, and reach the even brightness effect.
The multiple reflection rate reflector plate of the utility model embodiment one as shown in Figure 2, comprising: a multiple reflection rate reflector plate 12, and it has a plurality of first reflecting parts 121 and a plurality of second reflecting part 122; Wherein a side of second reflecting part 122 is provided with first reflecting part 121, and wherein the reflectivity of second reflecting part 122 is greater than the reflectivity of first reflecting part 121.
Embodiment two
The module backlight 2 of the multiple reflection rate reflector plate of the utility model embodiment two as shown in Figure 3, comprising: a back of the body frame 21; One is located at the multiple reflection rate reflector plate 22 on the back of the body frame 21, multiple reflection rate reflector plate 22 has a plurality of first reflecting parts 221, a plurality of second reflecting part 222 and a plurality of the 3rd reflecting part 223, wherein a side of second reflecting part 222 opposite side that is provided with first reflecting part 221 and second reflecting part 222 is provided with the 3rd reflecting part 223, and the reflectivity of second reflecting part 222 is identical with the reflectivity of first reflecting part 221 greater than the reflectivity of the reflectivity of first reflecting part 221 and the 3rd reflecting part 223; A plurality of light sources 23, its be located at respectively a plurality of first reflecting parts 221 directly over, and light source 23 is a fluorescent tube; And an optical diaphragm group 24, it is located at the top of a plurality of light sources 23; Wherein the 3rd reflecting part 223 is used for reducing the brightness directly over the light source 23, first reflecting part 221 like this, second reflecting part 222 and the 3rd reflecting part 223 make a plurality of light source 23 bright dippings even to the brightness of optical diaphragm group 24, avoiding on the optical diaphragm group 24 producing dark line and bright rays, and reach the even brightness effect.
The multiple reflection rate reflector plate of the utility model embodiment two as shown in Figure 3, comprising: a multiple reflection rate reflector plate 22, and it has a plurality of first reflecting parts 221, a plurality of second reflecting part 222; Wherein a side of second reflecting part 222 is provided with first reflecting part 221; And wherein the reflectivity of second reflecting part 222 greater than the reflectivity of first reflecting part 221, and multiple reflection rate reflector plate 22 also comprises a plurality of the 3rd reflecting parts 223, the 3rd reflecting part 223 is located at the opposite side of second reflecting part 222, and the reflectivity of the 3rd reflecting part 223 is identical with the reflectivity of first reflecting part 221.
Embodiment three
The module backlight 3 of the multiple reflection rate reflector plate of the utility model embodiment three as shown in Figure 4, comprising: a back of the body frame 31; One is located at the multiple reflection rate reflector plate 32 on the back of the body frame 31, multiple reflection rate reflector plate 32 has a plurality of first reflecting parts 321, a plurality of second reflecting part 322 and a plurality of the 4th reflecting part 324, wherein a side of second reflecting part 322 opposite side that is provided with first reflecting part 321 and second reflecting part 322 is provided with the 4th reflecting part 324, and the reflectivity of second reflecting part 322 is greater than the reflectivity of the reflectivity of first reflecting part 321 and the 4th reflecting part 324 reflectivity less than first reflecting part 321; A plurality of light sources 33, its be located at respectively a plurality of first reflecting parts 321 directly over, and light source 33 is a fluorescent tube; And an optical diaphragm group 34, it is located at the top of a plurality of light sources 33; Wherein the 4th reflecting part 324 is used for reducing the brightness directly over the light source 33, first reflecting part 321 like this, second reflecting part 322 and the 4th reflecting part 324 make a plurality of light source 33 bright dippings even to the brightness of optical diaphragm group 34, avoiding on the optical diaphragm group 34 producing dark line and bright rays, and reach the even brightness effect.
The multiple reflection rate reflector plate of the utility model embodiment three as shown in Figure 4, comprising: a multiple reflection rate reflector plate 32, and it has a plurality of first reflecting parts 321 and a plurality of second reflecting part 322; Wherein a side of second reflecting part 322 is provided with first reflecting part 321; And wherein the reflectivity of second reflecting part 322 greater than the reflectivity of first reflecting part 321.Reflector plate 32 comprises that also a plurality of the 4th reflecting part 324, the four reflecting parts 324 are located at the opposite side of second reflecting part 322, and the reflectivity of the 4th reflecting part 324 is less than the reflectivity of first reflecting part 321.
Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (7)
1, a kind of multiple reflection rate reflector plate, it is characterized in that: this multiple reflection rate reflector plate has a plurality of first reflecting parts and a plurality of second reflecting part, one side of described second reflecting part is provided with this first reflecting part, and the reflectivity of described second reflecting part is greater than the reflectivity of this first reflecting part.
2, multiple reflection rate reflector plate as claimed in claim 1, it is characterized in that: also comprise a plurality of the 3rd reflecting parts, the 3rd reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 3rd reflecting part is identical with the reflectivity of this first reflecting part.
3, multiple reflection rate reflector plate as claimed in claim 1, it is characterized in that: also comprise a plurality of the 4th reflecting parts, the 4th reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 4th reflecting part is less than the reflectivity of this first reflecting part.
4, a kind of module backlight of multiple reflection rate reflector plate, comprise a back of the body frame, one is located at the reflector plate on this back of the body frame, be located at a plurality of light sources of reflector plate top, an and optical diaphragm group of being located at the top of these a plurality of light sources, it is characterized in that: described reflector plate is a multiple reflection rate reflector plate, this multiple reflection rate reflector plate has a plurality of first reflecting parts and a plurality of second reflecting part, wherein a side of this second reflecting part is provided with this first reflecting part, and the reflectivity of this second reflecting part is greater than the reflectivity of this first reflecting part, these a plurality of light sources be located at respectively these a plurality of first reflecting parts directly over.
5, the module backlight of multiple reflection rate reflector plate as claimed in claim 4, it is characterized in that: this multiple reflection rate reflector plate also comprises a plurality of the 3rd reflecting parts, the 3rd reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 3rd reflecting part is identical with the reflectivity of this first reflecting part.
6, the module backlight of multiple reflection rate reflector plate as claimed in claim 4, it is characterized in that: this multiple reflection rate reflector plate also comprises a plurality of the 4th reflecting parts, the 4th reflecting part is located at the opposite side of this second reflecting part, and the reflectivity of the 4th reflecting part is less than the reflectivity of this first reflecting part.
7, the module backlight of multiple reflection rate reflector plate as claimed in claim 4 is characterized in that: this light source is a fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920137989 CN201425630Y (en) | 2009-04-27 | 2009-04-27 | multi-reflectivity reflecting plate and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920137989 CN201425630Y (en) | 2009-04-27 | 2009-04-27 | multi-reflectivity reflecting plate and backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425630Y true CN201425630Y (en) | 2010-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920137989 Expired - Fee Related CN201425630Y (en) | 2009-04-27 | 2009-04-27 | multi-reflectivity reflecting plate and backlight module thereof |
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| CN (1) | CN201425630Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155681A (en) * | 2010-12-15 | 2011-08-17 | 友达光电股份有限公司 | Light source circuit module with light reflection structure, backlight module and display |
-
2009
- 2009-04-27 CN CN 200920137989 patent/CN201425630Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155681A (en) * | 2010-12-15 | 2011-08-17 | 友达光电股份有限公司 | Light source circuit module with light reflection structure, backlight module and display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CHINA PROJECTION TUBE CO., LTD. Effective date: 20130717 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130717 Address after: 350015, No. 77, Mawei Science Park, Fujian, Fuzhou Patentee after: Fujian Huaying Display Technology Co., Ltd. Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: 350015, No. 77, Mawei Science Park, Fujian, Fuzhou Patentee before: Fujian Huaying Display Technology Co., Ltd. Patentee before: Chunghwa Picture Tubes Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20180427 |