CN100380140C - Laptop computer, backlight module and its light guide plate - Google Patents
Laptop computer, backlight module and its light guide plate Download PDFInfo
- Publication number
- CN100380140C CN100380140C CNB2005100048637A CN200510004863A CN100380140C CN 100380140 C CN100380140 C CN 100380140C CN B2005100048637 A CNB2005100048637 A CN B2005100048637A CN 200510004863 A CN200510004863 A CN 200510004863A CN 100380140 C CN100380140 C CN 100380140C
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- contact
- guide plate
- light guide
- lug
- frame
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- Planar Illumination Modules (AREA)
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Abstract
The present invention relates to a notebook type computer, and a backlight module and a light guide plate thereof, wherein the notebook type computer is composed of a host computer and a liquid crystal display. The host computer is pivoted with the liquid crystal display which comprises an LCD panel and a backlight module, and the backlight module which is arranged below the LCD panel is composed of a plastic frame and a light guide plate. The plastic frame has a first contact surface, the light guide plate is provided with at least one lug boss which has a second contact surface, and the light guide plate is suitable to be inlaid on the plastic frame through the lug boss. Since the contact between the first contact surface of the plastic frame and the second contact surface of the lug boss is line contact or point contact, the noise which is produced by the friction between the plastic frame and the light guide plate when the notebook type computer is opened or closed can be reduced.
Description
Technical field
The present invention relates to a kind of computing machine, light source module and light guide plate thereof (light guideplate), particularly a kind of notebook computer (notebook computer), backlight module (back light module) and light guide plate thereof.
Background technology
Along with development in science and technology is at a tremendous pace, powerful and easy to carry notebook computer has been played the part of epochmaking role in people's life.The display screen of notebook computer is main flow with the LCD.Yet, because LCD itself do not have luminous function, thus backlight module must be set so that light source to be provided below LCD, and then reach the function of demonstration.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the synoptic diagram of known notebook computer, and Fig. 2 is the partial cutaway schematic of backlight module in the known notebook computer.Notebook computer 20 is made of main frame 30 and liquid crystal indicator 40, and this liquid crystal indicator 40 is pivoted to main frame 30.
Referring again to Fig. 2, known backlight module 100 is made of frame of plastic 110, light guide plate 120 and light source (not expressing among the figure), and wherein light guide plate 120 has lug 122, and light guide plate 120 is suitable for being positioned in the frame of plastic 110 by this lug 122.In addition, above-mentioned light source is arranged on the frame of plastic 110, and frame of plastic 110 has surface of contact 112, and lug 122 then has surface of contact 122a.
Please when notebook computer 20 foldings, will make to produce friction because of relative displacement between frame of plastic 110 and the light guide plate 120 simultaneously with reference to Fig. 1 and Fig. 2.Yet,, so will cause the surface of contact 122a of lug 122 in the process of mutual friction mutually, to produce different sound with the surface of contact 112 of frame of plastic 110 because contacting between the surface of contact 112 of the surface of contact 112a of lug 122 and frame of plastic 110 is the face contact.
Summary of the invention
Order of the present invention is to provide a kind of light guide plate, and the noise that is produced because of friction between this light guide plate and frame of plastic can be lowered effectively.
Another object of the present invention provides a kind of backlight module, and the noise that is produced because of friction between light guide plate in this backlight module and frame of plastic can be lowered effectively.
A further object of the present invention provides a kind of notebook computer, and this notebook computer is when folding, and the noise that is produced because of friction between light guide plate and frame of plastic can be lowered effectively.
For reaching the present invention's above-mentioned purpose, the present invention proposes a kind of light guide plate, it has at least one lug, light guide plate is suitable for being embedded at frame of plastic by lug, wherein frame of plastic has first surface of contact, and lug has second surface of contact, and second surface of contact is for partly being contacted with first surface of contact; Wherein, contacting between first surface of contact of second surface of contact of the lug of light guide plate and frame of plastic is a contact.
Embodiment according to the present invention is described, and second surface of contact of lug for example is a curved surface, and this curved surface is a sphere.
The present invention proposes a kind of backlight module, it is made of frame of plastic, light guide plate and light source, wherein frame of plastic has first surface of contact, and light guide plate has light inlet side and at least one lug, light guide plate is suitable for being embedded at frame of plastic by lug, and lug has second surface of contact, and second surface of contact partly is contacted with first surface of contact.In addition, light source is arranged at the light inlet side of light guide plate; Wherein, contacting between first surface of contact of second surface of contact of the lug of light guide plate and frame of plastic is a contact.
The present invention proposes a kind of notebook computer, and it is made of main frame and liquid crystal indicator.Wherein LCD device is pivoted to main frame, and this LCD mainly is made of display panels and backlight module, and backlight module is arranged under the display panels.The framework of this backlight module is identical with aforementioned backlight module, promptly omits its introduction at this.
In aforementioned backlight module and notebook computer, contacting between second surface of contact of the lug of light guide plate and first surface of contact of frame of plastic is a contact.In one example, second surface of contact of lug for example is a curved surface, and this curved surface is a sphere.
According to the above description, in the present invention's notebook computer, backlight module and light guide plate thereof, because contacting between second surface of contact of first surface of contact of frame of plastic and lug is the some contact, therefore can reduce notebook computer noise because of rubbing and being produced between frame of plastic and the light guide plate when folding.
Hold within the present invention and other purpose, feature and advantage can become apparent for allowing, hereinafter enumerate preferred embodiment, and conjunction with figs., be described in detail below.
Embodiment
Please be simultaneously with reference to Fig. 4 and Fig. 5 A, the partial side view of a kind of backlight module in Fig. 4 presentation graphs 3 wherein, and Fig. 5 A is the partial cutaway schematic of backlight module of the present invention's first embodiment.Backlight module 200 mainly is made of frame of plastic 210, light guide plate 220 and light source 230.Wherein, light guide plate 220 has at least one lug 222, and light guide plate 220 is suitable for being embedded at frame of plastic 210 by lug 222.Wherein, frame of plastic 210 has first surface of contact 212, and lug 222 then has the second surface of contact 222a, and the second surface of contact 222a partly is contacted with first surface of contact 212.
Please refer to Fig. 4, light guide plate 220 has light inlet side 224, and light source 230 then is arranged on the light inlet side 224 of light guide plate 220, so that light is by light inlet side 224 incident light guide plate 220, penetrate light via the light outgoing cross section (not expressing among the figure) of light guide plate 220 again, to form area source.And light guide plate 220 is generally the wedge shape light guide plate.In addition, though Fig. 4 only expresses cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) light source 230 of form, but it is not in order to limit the present invention, any person of ordinary skill in the field will be appreciated that, the light source 230 of backlight module 200 can also be light emitting diode (LightEmitting Diode, LED) array or other suitable light source.
In addition, backlight module 200 also comprises reflector plate 240, and this reflector plate 240 then is arranged between light guide plate 220 and the frame of plastic 210.Wherein, the effect of reflector plate 240 is the light that reflection is injected by the light inlet side 224 of light guide plate 220, is converted to area source via the effect of light guide plate 220 again, and is penetrated by the light outgoing cross section of light guide plate 200.
Please be simultaneously with reference to Fig. 3 and Fig. 5 A.Specifically, the second surface of contact 222a of present embodiment is that line contacts with 212 of first surface of contact, and the second surface of contact 222a that the mode that the second surface of contact 222a and first surface of contact 212 are contacted for line makes lug 222 tilts with respect to first surface of contact 212 of frame of plastic 210.Therefore, when notebook computer 300 during in folding, though can produce friction because of relative displacement between frame of plastic 210 and the light guide plate 220, but because contacting between first surface of contact 212 of the second surface of contact 222a of lug 222 and frame of plastic 210 is that line contacts, even therefore between frame of plastic 210 and the light guide plate 220 because of relative displacement produces friction, also can reduce the noise because of rubbing and being produced between the two.
Please refer to Fig. 5 B, it is the partial cutaway schematic of the backlight module of the present invention's second embodiment.Specifically, contacting between first surface of contact 212 of frame of plastic 210 and the second surface of contact 222b of lug 222 is not limited to the line contact that first embodiment is proposed, and it can also be a contact.With the present invention's second embodiment, the second surface of contact 222b of lug 222 for example is a curved surface, and this curved surface then for example is a sphere, contacts (shown in Fig. 5 B) in order to form point with first surface of contact 212 of frame of plastic 210.
It should be noted that, it is respectively that Fig. 5 A and Fig. 5 B are that example is done explanation that above-mentioned line contact contacts with point, but it is not in order to limit the present invention, any person of ordinary skill in the field should know, no matter above-mentioned which kind of design, its spirit are to reduce the contact area between first surface of contact 212 of the second surface of contact 222a (222b) of lug 222 and frame of plastic 210.Like this, though between frame of plastic 210 and the light guide plate 220 because of relative displacement produces friction, also can drop to the noise that produced of friction minimum.
Backlight module that it should be noted that the present invention is not limited to be applied in the notebook computer, and it also can be applicable in the various products that need backlight module.
In sum, in the present invention's notebook computer, backlight module and light guide plate thereof, because second surface of contact of lug partly is contacted with first surface of contact of frame of plastic.Like this, can reduce the noise that notebook computer is produced because of friction between frame of plastic and the light guide plate when folding.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking the claim person of defining.
Description of drawings
Fig. 1 is the synoptic diagram of known notebook computer.
Fig. 2 is the partial cutaway schematic of backlight module in the known notebook computer.
Fig. 3 is the synoptic diagram of the notebook computer of one embodiment of the invention.
The partial side view of a kind of backlight module in Fig. 4 presentation graphs 3.
Fig. 5 A represents the partial cutaway schematic of backlight module of the present invention's first embodiment.
Fig. 5 B is the partial cutaway schematic of the backlight module of the present invention's second embodiment.
The main element description of symbols
20: notebook computer
30: main frame
40: liquid crystal indicator
100: backlight module
110: frame of plastic
112: surface of contact
112a: surface of contact
120: light guide plate
122: lug
130: reflector plate
200: backlight module
210: frame of plastic
212: the first surface of contact
220: light guide plate
222: lug
222a, 222b: second surface of contact
224: the light inlet side
230: light source
240: reflector plate
300: notebook computer
310: main frame
320: liquid crystal indicator
322: display panels
Claims (11)
1. a light guide plate has at least one lug, and this light guide plate is suitable for being embedded at frame of plastic by this lug, and wherein this frame of plastic has first surface of contact, and this lug has second surface of contact, and this second surface of contact partly is contacted with this first surface of contact; It is characterized in that: contact for point between this first surface of contact and this second surface of contact.
2. the light guide plate according to claim 1 is characterized in that this second surface of contact of this lug is a curved surface.
3. the light guide plate according to claim 2 is characterized in that this curved surface is a sphere.
4. backlight module comprises:
Frame of plastic has first surface of contact;
Light guide plate has light inlet side and at least one lug, and this light guide plate is suitable for being embedded at this frame of plastic by this lug, and this lug has second surface of contact, and this second surface of contact partly is contacted with this first surface of contact; And
Light source, it is arranged at this light inlet side of this light guide plate;
It is characterized in that, contact for point between this first surface of contact and this second surface of contact.
5. the backlight module according to claim 4 is characterized in that this second surface of contact of this lug is a curved surface.
6. the backlight module according to claim 5 is characterized in that this curved surface is a sphere.
7. the backlight module according to claim 4 is characterized in that also comprising reflector plate, and this reflector plate is arranged between this light guide plate and this frame of plastic.
8. notebook computer comprises:
Main frame;
Liquid crystal indicator is pivoted to this main frame, and this liquid crystal indicator comprises:
Display panels;
Backlight module is arranged under this display panels, and this backlight module comprises:
Frame of plastic has first surface of contact; And
Light guide plate has light inlet side and at least one lug, and this light guide plate is suitable for being embedded at this frame of plastic by this lug, and this lug has second surface of contact, and this second surface of contact partly is contacted with this first surface of contact; And
Light source, it is arranged at this light inlet side of this light guide plate;
It is characterized in that, contact for point between this first surface of contact and this second surface of contact.
9. described according to Claim 8 notebook computer is characterized in that this second surface of contact of this lug is a curved surface.
10. the notebook computer according to claim 9 is characterized in that this curved surface is a sphere.
11. described according to Claim 8 notebook computer is characterized in that also comprising reflector plate, this reflector plate is arranged between this light guide plate and this frame of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100048637A CN100380140C (en) | 2005-02-03 | 2005-02-03 | Laptop computer, backlight module and its light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100048637A CN100380140C (en) | 2005-02-03 | 2005-02-03 | Laptop computer, backlight module and its light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815270A CN1815270A (en) | 2006-08-09 |
| CN100380140C true CN100380140C (en) | 2008-04-09 |
Family
ID=36907545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100048637A Expired - Fee Related CN100380140C (en) | 2005-02-03 | 2005-02-03 | Laptop computer, backlight module and its light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100380140C (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09219109A (en) * | 1996-02-09 | 1997-08-19 | Yamaha Corp | Surface display device |
| JP2000292622A (en) * | 1999-04-05 | 2000-10-20 | Enplas Corp | Light conductive plate, surface light source device and display device |
| US6373537B2 (en) * | 1997-04-08 | 2002-04-16 | Lg. Philips Lcd Co., Ltd. | Computer having liquid crystal display between frames attached at the edges |
| CN1144083C (en) * | 2001-02-20 | 2004-03-31 | 友达光电股份有限公司 | Lightguide plate fixing frame and its back lighting device |
| US6721021B2 (en) * | 1999-07-05 | 2004-04-13 | Kabushiki Kaisha Advanced Display | Liquid crystal display device having a back frame which includes a contacted portion with the liquid crystal panel |
| JP2004117744A (en) * | 2002-09-25 | 2004-04-15 | Sharp Corp | Backlight unit for transmission type liquid crystal display element |
| US20040141102A1 (en) * | 2003-01-08 | 2004-07-22 | Mei-Hui Lin | Liquid crystal display module and fastening structure thereof |
| CN2629062Y (en) * | 2003-08-12 | 2004-07-28 | 力捷电脑股份有限公司 | Fixed rubber frame group |
-
2005
- 2005-02-03 CN CNB2005100048637A patent/CN100380140C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09219109A (en) * | 1996-02-09 | 1997-08-19 | Yamaha Corp | Surface display device |
| US6373537B2 (en) * | 1997-04-08 | 2002-04-16 | Lg. Philips Lcd Co., Ltd. | Computer having liquid crystal display between frames attached at the edges |
| JP2000292622A (en) * | 1999-04-05 | 2000-10-20 | Enplas Corp | Light conductive plate, surface light source device and display device |
| US6721021B2 (en) * | 1999-07-05 | 2004-04-13 | Kabushiki Kaisha Advanced Display | Liquid crystal display device having a back frame which includes a contacted portion with the liquid crystal panel |
| CN1144083C (en) * | 2001-02-20 | 2004-03-31 | 友达光电股份有限公司 | Lightguide plate fixing frame and its back lighting device |
| JP2004117744A (en) * | 2002-09-25 | 2004-04-15 | Sharp Corp | Backlight unit for transmission type liquid crystal display element |
| US20040141102A1 (en) * | 2003-01-08 | 2004-07-22 | Mei-Hui Lin | Liquid crystal display module and fastening structure thereof |
| CN2629062Y (en) * | 2003-08-12 | 2004-07-28 | 力捷电脑股份有限公司 | Fixed rubber frame group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1815270A (en) | 2006-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| 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 | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAIWAN, CHINA TO: 350000 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130717 Address after: 350000, No. 1, building 6, building No. third, fourth, Confucian Road West, Mawei District, Fujian, Fuzhou Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: Taiwan, Taipei, China Zhongshan North Road 3 paragraph 22 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: 20080409 Termination date: 20200203 |