CN101458421B - LCD, back light module unit and light guide board - Google Patents
LCD, back light module unit and light guide board Download PDFInfo
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- CN101458421B CN101458421B CN2007101621108A CN200710162110A CN101458421B CN 101458421 B CN101458421 B CN 101458421B CN 2007101621108 A CN2007101621108 A CN 2007101621108A CN 200710162110 A CN200710162110 A CN 200710162110A CN 101458421 B CN101458421 B CN 101458421B
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Abstract
The invention discloses an LCD device, a backlight module and a light guide panel (LGP), wherein, the LGP comprises a first light-emitting area, a second light-emitting area and a light-emitting enhancement structure. The first light-emitting area is used for light emitting for the backlight module, the second light-emitting area which is adjacent to the first light-emitting area is arranged at one side of the LGP and the light-emitting reinforced structure is arranged on the surface of the second light-emitting area. The invention also discloses the backlight module and LCD device which include the LGP, wherein, the backlight module consists of the LGP and a color sensor; the LCD device consists of an LCD panel and the backlight module which consists of the LGP and the color sensor. The invention can solve the problem that the color sensor receives inadequate quantity of light thus influencing the sensor for mixed light, and also can monitor the mixed light accurately in order to manage and calibrate the mixed light, thereby promoting the display quality of the LCD device. In addition, the structure of the invention does not use high level color sensor, thus the costs can not be increased.
Description
Technical field
The present invention is about a kind of display device, module backlight and LGP, especially in regard to a kind of liquid crystal indicator, module backlight and LGP.
Background technology
Module backlight is if adopt the framework of three primary colors mixed light to produce white light providing liquid crystal indicator (LCD) required light source, and the excitation that module then backlight sends white light has significant effects to the display quality of liquid crystal indicator.So the mixed light usefulness of module backlight is with the display quality that directly influences entire liquid crystal display device.
The mixed light process need is by sensor (color sensor) monitoring mixed light situation, and synchronous micro-adjusting three primary colors luminous quantity separately, that is adjusts the mixed light tone of module backlight, makes module backlight send the high white light of excitation.Therefore, how suitably to receive luminous quantity of all kinds also important relatively for sensor.
Please with reference to shown in Figure 1A and Figure 1B, a kind of existing liquid crystal indicator 1 comprises a display panels 10 and a module 11 backlight.Module 11 backlight and display panels 10 corresponding settings.Module 11 backlight comprises several light emitting sources 111, a sensor 112 and a LGP 113.Each light emitting source 111 by a light emitting diode (LED) for example red LED, blue led and green LED the lamp bar (lightbar) that constitutes of arrangement, said each light emitting source 111 is arranged at the relative both sides of module 11 backlight respectively.
LGP 113 has one first output optical zone 114 and one second output optical zone 115.Wherein, first output optical zone 114 is in order to providing module 11 bright dipping usefulness backlight, second output optical zone, 115 corresponding sensors 112 and be arranged at a side of LGP 113.Sensor 112 is arranged on the circuit board 116, and with circuit board 116 electrically connects.Be monitoring mixed light situation, when said each light emitting source 111 emit beam get into LGP 113 and carry out mixed light after, light is penetrated by second output optical zone 115 of LGP 113 sides, light is passed to sensor 112 (shown in Fig. 2 B arrow).Because sensor 112 and circuit board 116 electrically connects, circuit board 116 can feedback adjustment luminous quantity of all kinds according to sensing result.
Yet the opticpath that LGP 113 is transmitted mainly all is towards display panels 10, and is low at the amount of light of LGP 113 sides, and the low light quantity that makes sensor 112 receive causes the sensing result of mixed light inaccurate, the usefulness of influence back coupling adjustment.If adopt the sensor of high-order, cost is improved, also do not meet the demand of practical application.
Summary of the invention
In order to overcome the problems referred to above that prior art exists; The object of the invention is for providing a kind of liquid crystal indicator, module backlight and LGP; Strengthen the setting of structure by bright dipping; Amplify the amount of light that LGP is passed to sensor, guarantee that sensor can accurately monitor the mixed light situation to carry out the mixed light management and to proofread and correct, promote the display quality of liquid crystal indicator.
Because above-mentioned problem, the object of the invention by increasing the amount of light that LGP is passed to sensor, need not adopt the sensor of high-order, so can not raise the cost for a kind of liquid crystal indicator, module backlight and LGP are provided.
For reaching above-mentioned purpose, according to a kind of LGP that is applicable to module backlight of the present invention.LGP comprises one first output optical zone, one second output optical zone and a bright dipping and strengthens structure.First output optical zone is used in order to module bright dipping backlight to be provided.Adjacent first output optical zone of second output optical zone and be arranged at a side of LGP.Bright dipping strengthens the surface that structure is arranged at second output optical zone.
For reaching above-mentioned purpose, comprise a sensor and a LGP according to a kind of module backlight of the present invention.LGP has one first output optical zone, one second output optical zone and a bright dipping and strengthens structure.First output optical zone is in order to providing module bright dipping usefulness backlight, adjacent first output optical zone of second output optical zone and be arranged at a side of LGP, and bright dipping strengthens the surface that structure is arranged at second output optical zone.Corresponding second output optical zone of sensor and being provided with.
For reaching above-mentioned purpose, comprise a display panels and a module backlight according to a kind of liquid crystal indicator of the present invention.The corresponding setting of module backlight with display panels; And comprise a sensor and a LGP; LGP has one first output optical zone, one second output optical zone and a bright dipping strengthens structure, and first output optical zone is in order to providing module bright dipping usefulness backlight, adjacent first output optical zone of second output optical zone and be arranged at a side of LGP; Bright dipping strengthens the surface that structure is arranged at second output optical zone, corresponding second output optical zone of sensor and being provided with.
Hold the above; Because of foundation a kind of liquid crystal indicator of the present invention, module backlight and LGP; Strengthen structure by bright dipping set between output optical zone that is positioned at the LGP side edge surface and sensor, amplify the amount of light that LGP is passed to sensor, strengthen the light quantity that sensor received.Compare with prior art, the present invention can improve sensor and receive deficiency in light quantity, influences the problem of sensor for the sensing of mixed light situation, accurately monitors the mixed light situation to carry out the mixed light management and to proofread and correct, and promotes the display quality of liquid crystal indicator.In addition, structure setting of the present invention need not adopted the sensor of high-order, so can not raise the cost.
Description of drawings
Concrete structure of the present invention, performance and characteristics are further described by following embodiment and accompanying drawing thereof.
Figure 1A and Figure 1B are a kind of existing liquid crystal indicator and the local synoptic diagram that amplifies thereof;
Fig. 2 is according to a kind of liquid crystal indicator of preferred embodiment of the present invention and the local synoptic diagram that amplifies thereof; And
Fig. 3 A to Fig. 3 D has the different synoptic diagram that change aspects for the bright dipping according to the module backlight of preferred embodiment of the present invention strengthens structure.
Main element symbol description among the figure
1,2 liquid crystal indicators
10,20 display panels
11,30 modules backlight
111 light emitting sources
112,31 sensors
113,32 LGPs
114,321 first output optical zones
115,322 second output optical zones
116,33 circuit boards
323,323a, 323b, 323c, 323d bright dipping strengthen structure
Embodiment
Below will a kind of liquid crystal indicator according to preferred embodiment of the present invention, module backlight and LGP be described with reference to correlative type, wherein components identical will be explained with identical reference marks.
Please with reference to shown in Figure 2, a kind of liquid crystal indicator 2 of preferred embodiment of the present invention comprises a display panels 20 and a module 30 backlight.Module 30 backlight can be a direct-type backlight module or side-light type module backlight, and with display panels 20 corresponding settings.
It for example is a lens arrangement or a multi-layer film structure that bright dipping strengthens structure 323.Lens arrangement can be a single lens or a lens arra; Such as but not limited to being selected from water chestnut mirror, Fresnel (fresnel) group that lens and tapered lens constituted, and for example with bonding, engage or mode such as screw togather is linked to the surface of second output optical zone 322 of LGP 32.Be noted that the size that bright dipping strengthens structure 323 settings does not limit the size that equals second output optical zone 322; The size of bright dipping enhancing structure 323 also can be greater than or less than the size of second output optical zone 322.
The bright dipping of present embodiment strengthen structure 323 be a single shaft to the water chestnut lens array, and with LGP 32 one-body molded processing, its one-body molded mode can be ejection formation or moulded section.Bright dipping strengthens structure 323 protrusions and is arranged between the surface and sensor 31 of second output optical zone 322.Certainly, bright dipping strengthens structure 323 and also can be a recessed structure, can reach to amplify the structure of effect that LGP 32 is passed to the amount of light of sensor 31 and be provided with all and can adopt.
In present embodiment, the light source of module 30 backlight can be pointolite, line source (for example lamp bar) or the area source that blueness, green and red light emitting diodes (LED) are constituted.When light source emit beam get into LGP 32 and carry out mixed light after; Light is penetrated by second output optical zone 322 of LGP 32 sides; Light is passed to bright dipping and strengthens structure 323, strengthens the light quantity that structure 323 is amplified light by bright dipping, and light is passed to sensor 31 again; Can strengthen the light quantity that sensor 31 is received, accurately monitor the mixed light situation to carry out the mixed light management and to proofread and correct.Be noted that the light source of module 30 backlight is not limited to LED, also can be cold cathode fluorescent lamp pipe (CCFL).
Please with reference to shown in Fig. 3 A to Fig. 3 D, bright dipping strengthens structure 323 can have different variation aspects, can reach equally to amplify the effect that LGP 32 penetrates the amount of light of second output optical zone 322.Shown in Fig. 3 A, it is the formed arrays of several concavees lens that bright dipping strengthens structure 323a, and bright dipping strengthens the side that structure 323a protrudes from LGP 32.Shown in Fig. 3 B, it is the formed arrays of several convex lens that bright dipping strengthens structure 323b, and bright dipping strengthens the side that structure 323b protrudes from LGP 32.
Bright dipping strengthens the also variable design that is changed to tapered lens of structure, for example is a Conical Lenses or pyramid lens.Shown in Fig. 3 C, bright dipping strengthens structure 323c can form a quadrangular pyramid lens arra.Shown in Fig. 3 D, in the bright dipping zone of LGP 32 with respect to sensor 31, the bright dipping that forms a concave type strengthens structure 323d, and forms a parallel water chestnut lens array.More than be merely and illustrate, non-in order to restriction the present invention.
In sum; Because of foundation a kind of liquid crystal indicator of the present invention, module backlight and LGP; Strengthen structure by bright dipping set between output optical zone that is positioned at the LGP side edge surface and sensor, amplify the amount of light that LGP is passed to sensor, strengthen the light quantity that sensor received.Compared with prior art, the present invention can improve the problem that sensor receives deficiency in light quantity, accurately monitors the mixed light situation to carry out the mixed light management and to proofread and correct, and promotes the display quality of liquid crystal indicator.In addition, structure setting of the present invention need not adopted the sensor of high-order, so can not raise the cost.
The above is merely illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in claims scope of the present invention its equivalent modifications of carrying out or change.
Claims (14)
1. a module backlight is characterized in that, comprises:
One LGP; Have one first output optical zone, one second output optical zone and a bright dipping and strengthen structure; Said first output optical zone is used in order to said module bright dipping backlight to be provided; Adjacent said first output optical zone of said second output optical zone and be arranged at a side of said LGP, said bright dipping strengthens the surface that structure is arranged at said second output optical zone; And
One sensor, corresponding said second output optical zone and being provided with;
Wherein, the light that red, indigo plant and green light source are sent gets into said LGP mixed light, and said sensor monitoring mixed light situation according to the sensing result of said sensor, feedbacks adjustment luminous quantity of all kinds.
2. module backlight as claimed in claim 1 is characterized in that, said second output optical zone is a semi-opaque region or a full photic zone.
3. module backlight as claimed in claim 2 is characterized in that, it is a lens arrangement or a multi-layer film structure that said bright dipping strengthens structure.
4. module backlight as claimed in claim 3 is characterized in that, said lens arrangement is a single lens or a lens arra.
5. module backlight as claimed in claim 4 is characterized in that said lens are selected from the group that water chestnut mirror, Fresnel lens and tapered lens are constituted.
6. module backlight as claimed in claim 5 is characterized in that, said tapered lens are a Conical Lenses or quadrangular pyramid lens.
7. module backlight as claimed in claim 1 is characterized in that, it is a recessed structure or a projective structure that said bright dipping strengthens structure.
8. a liquid crystal indicator is characterized in that, comprises:
One display panels; And
One module backlight, corresponding setting with said display panels; It comprises a sensor and a LGP; Said LGP has one first output optical zone, one second output optical zone and a bright dipping and strengthens structure; Said first output optical zone is used in order to said module bright dipping backlight to be provided; Adjacent said first output optical zone of said second output optical zone and be arranged at a side of said LGP, said bright dipping strengthens the surface that structure is arranged at said second output optical zone, corresponding said second output optical zone of said sensor and being provided with;
Wherein, the light that red, indigo plant and green light source are sent gets into said LGP mixed light, and said sensor monitoring mixed light situation according to the sensing result of said sensor, feedbacks adjustment luminous quantity of all kinds.
9. liquid crystal indicator as claimed in claim 8 is characterized in that, said first output optical zone is a semi-opaque region or a full photic zone.
10. liquid crystal indicator as claimed in claim 8 is characterized in that, it is a lens arrangement or a multi-layer film structure that said bright dipping strengthens structure.
11. liquid crystal indicator as claimed in claim 10 is characterized in that, said lens arrangement is a single lens or a lens arra.
12. liquid crystal indicator as claimed in claim 11 is characterized in that, said lens are selected from the group that water chestnut mirror, Fresnel lens and tapered lens are constituted.
13. liquid crystal indicator as claimed in claim 12 is characterized in that, said tapered lens are a Conical Lenses or quadrangular pyramid lens.
14. liquid crystal indicator as claimed in claim 8 is characterized in that, it is a recessed structure or a projective structure that said bright dipping strengthens structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101621108A CN101458421B (en) | 2007-12-13 | 2007-12-13 | LCD, back light module unit and light guide board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101621108A CN101458421B (en) | 2007-12-13 | 2007-12-13 | LCD, back light module unit and light guide board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101458421A CN101458421A (en) | 2009-06-17 |
| CN101458421B true CN101458421B (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101621108A Expired - Fee Related CN101458421B (en) | 2007-12-13 | 2007-12-13 | LCD, back light module unit and light guide board |
Country Status (1)
| Country | Link |
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| CN (1) | CN101458421B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916151B (en) * | 2010-08-30 | 2012-07-04 | 友达光电股份有限公司 | Optical plate structure, touch display panel and touch liquid crystal display comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362635A (en) * | 2000-12-27 | 2002-08-07 | 三菱电机株式会社 | Transmission type colour liquid crystal display device |
| JP2004199968A (en) * | 2002-12-18 | 2004-07-15 | Advanced Display Inc | Planar light source device, liquid crystal display device, and display device |
| CN101004512A (en) * | 2006-01-17 | 2007-07-25 | 建美电子股份有限公司 | Backlight module |
| CN101042499A (en) * | 2006-03-22 | 2007-09-26 | Nec液晶技术株式会社 | Liquid crystal display apparatus and backlight unit used in liquid crystal display apparatus |
-
2007
- 2007-12-13 CN CN2007101621108A patent/CN101458421B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362635A (en) * | 2000-12-27 | 2002-08-07 | 三菱电机株式会社 | Transmission type colour liquid crystal display device |
| JP2004199968A (en) * | 2002-12-18 | 2004-07-15 | Advanced Display Inc | Planar light source device, liquid crystal display device, and display device |
| CN101004512A (en) * | 2006-01-17 | 2007-07-25 | 建美电子股份有限公司 | Backlight module |
| CN101042499A (en) * | 2006-03-22 | 2007-09-26 | Nec液晶技术株式会社 | Liquid crystal display apparatus and backlight unit used in liquid crystal display apparatus |
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| Publication number | Publication date |
|---|---|
| CN101458421A (en) | 2009-06-17 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Science Road, 350, Hsinchu Science Industrial Park, Miaoli, Taiwan, China, No. 160, science Road Applicant after: Chimei Optoelectronics Co., Ltd. Address before: China Taiwan Tainan County Tainan Science Industrial Park odd Road No. 1 Applicant before: Chimei Optoelectronics Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20201213 |