CN100492122C - LCD device - Google Patents
LCD device Download PDFInfo
- Publication number
- CN100492122C CN100492122C CNB2006100628919A CN200610062891A CN100492122C CN 100492122 C CN100492122 C CN 100492122C CN B2006100628919 A CNB2006100628919 A CN B2006100628919A CN 200610062891 A CN200610062891 A CN 200610062891A CN 100492122 C CN100492122 C CN 100492122C
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- CN
- China
- Prior art keywords
- liquid crystal
- light
- crystal indicator
- guide plate
- light guide
- 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.)
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Abstract
A liquid crystal display device comprises an upper substrate, a liquid crystal layer, a lower substrate, an optics membrane and a light guiding plate which are in sandwich arrangement in turn. The invention further comprises a flexible circuit board and a light source, wherein, the flexible circuit board is arranged on the lower substrate; the light source is arranged at one side of the flexible circuit board adjacent to the light guiding plate; the light guiding plate comprises a top surface, the part of the top surface corresponding to the light source is defined as a light input zone, while the rest part of the top surface is defined as a light output zone. The light source of the liquid crystal display device is arranged on the flexible circuit board, and the part of the top surface corresponding to the light source is defined as the light input zone, thereby the area of the light input zone is enlarged, and consequently light usage factor of the liquid crystal display device is improved.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator.
Background technology
Because the liquid crystal itself in the display panels is not had a characteristics of luminescence, therefore, for reaching display effect, be required to be display panels one planar light source device is provided, as module backlight, its function is planar light source abundant to display panels supply brightness and that be evenly distributed.At present, the module backlight of hand-held electronic product is done thinner and thinner for adapting to the lightening of product, and its corresponding light source does not then catch up with module backlight to lightening requirement.
Seeing also Fig. 1, is a kind of side view of prior art liquid crystal indicator.This liquid crystal indicator 1 comprises a display panels 11 and a module 12 backlight.This module backlight 12 and these display panels 11 stacked settings, and provide uniform in-plane light for this display panels 11.
This display panels 11 comprise stacked setting one on polaroid 13, a top glass substrate 14, a liquid crystal layer (figure does not show), a lower glass substrate 15 and polaroid 16 once.This display panels 11 further comprises a flexible circuit board 151 and a printed circuit board (PCB) 152.Lower glass substrate 15 is provided with a plurality of driving circuits (figure does not show).These flexible circuit board 151 1 ends are electrically connected with this printed circuit board (PCB) 152, and the other end is arranged on the edge of this lower glass substrate 15, and are electrically connected with these a plurality of driving circuits.
This module 12 backlight comprises an optical diaphragm group 17, a light guide plate 18, a light source 19 and a reflector plate 190.This light guide plate 18 comprises an incidence surface 181, an exiting surface 182 adjacent with this incidence surface 181 and one and these exiting surface 182 opposed bottom surface 185.This light source 19 is arranged at this incidence surface 181 1 sides, and this optical diaphragm group 17 is arranged at this exiting surface 182 1 sides, and this reflector plate 190 is arranged at this bottom surface 185 1 sides.
The light that sends from this light source 19 enters this light guide plate 18 via this incidence surface 181, part light is via this exiting surface 182 and this display panels 11 of this optical diaphragm group 17 directives, part light is penetrated to this reflector plate 190 by this bottom surface 185, and reentered this light guide plate 18 by 190 reflections of this reflector plate, finally via this exiting surface 182 and this display panels 11 of this optical diaphragm group 17 directives, for this display panels 11 provides uniform light.
Only, along with the innovation of technology, the thickness of this light guide plate 18 improves attenuation gradually from original 0.8mm, 0.7mm, 0.6mm by now, 0.45mm.And not catching up with the thinning development of light guide plate 18 as light source 19 thinnings of main body development with light emitting diode, its thickness is about 0.6mm.These light source 19 thickness are greater than the thickness of this light guide plate 18, and incidence surface 181 areas are less, and the utilization factor of light certainly will reduce.
Summary of the invention
In order to solve the low problem of the utilization factor of light in the prior art, be necessary to provide a kind of liquid crystal indicator with high light utilization factor.
A kind of liquid crystal indicator, it comprises a upper substrate, a liquid crystal layer, an infrabasal plate, an optical diaphragm group and a light guide plate of stacked setting in regular turn.This liquid crystal indicator further comprises a flexible circuit board and a light source, and this flexible circuit board is arranged on this infrabasal plate, and this light source is arranged at this light guide plate one side of vicinity of this flexible circuit board.This light guide plate comprises an end face, and this end face is to being defined as light incidence section by the Lights section, and this end face remainder is defined as output optical zone.
Compared with prior art, the light source of this liquid crystal indicator is arranged on the flexible circuit board, and light guide plate end face corresponding light source location definition is a light incidence section, has increased the area of light incidence section, and then can improve the light utilization efficiency of liquid crystal indicator.
Description of drawings
Fig. 1 is a kind of side view of prior art liquid crystal indicator.
Fig. 2 is the local enlarged side view of liquid crystal indicator first embodiment of the present invention.
Fig. 3 is the local enlarged side view of liquid crystal indicator second embodiment of the present invention.
Fig. 4 is the local enlarged side view of liquid crystal indicator the 3rd embodiment of the present invention.
Embodiment
Please refer to Fig. 2, is the local enlarged side view of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 2 comprises a display panels 21 and a module 22 backlight.This module backlight 22 and these display panels 21 stacked settings, and provide uniform in-plane light for this display panels 21.
This display panels 21 comprise stacked setting in regular turn one on polaroid 23, a top glass substrate 24, a liquid crystal layer (figure does not show), a lower glass substrate 25 and polaroid 26 once.This display panels 21 further comprises a flexible circuit board 251, a printed circuit board (PCB) 252.Lower glass substrate 25 is provided with a plurality of driving circuits (figure does not show).These flexible circuit board 251 1 ends are electrically connected with this printed circuit board (PCB) 252, and the other end is arranged on the edge of this lower glass substrate 25, and are electrically connected with these a plurality of driving circuits.
This module 22 backlight comprises an optical diaphragm group 27, a light guide plate 28 and a reflector plate 290 of stacked setting in regular turn.This module 22 backlight further comprises a light source 29 and a glue frame 299.This light source 29 is arranged at these light guide plate 28 1 sides of vicinity of this flexible circuit board 251 by surface mount technology, and is electrically connected with this flexible circuit board 251.This light source 29 is luminous straight down.The light leak that this glue frame 299 is located these light sources 29 and prevented these light source 29 side direction.
This light guide plate 28 comprise an end face 280, one with these end face 280 opposed bottom surface 285 and a side 281 that links to each other with this end face 280 and bottom surface 285.These end face 280 vertical directions are to being defined as light incidence section 282 by light source 29 luminous components, and remainder is defined as output optical zone 283.This side 281 is an acute angle with the angle of this end face 280, it is corresponding with this light incidence section 282, this structure can reflect from this light incidence section 282 and enter this light guide plate 28 and be incident upon the light of this side 281, and light is advanced in this light guide plate 28, and final directive display panels 21.This optical diaphragm group 27 is arranged at this output optical zone 283 1 sides, and this reflector plate 290 is arranged at this bottom surface 285 and these side 281 1 sides.
The light that sends from this light source 29 enters this light guide plate 28 via this light incidence section 282, by the reflection of the side 281 of light guide plate 28 and in this light guide plate 28, advance, the light beam that part is passed side 281 also by this this light guide plate 28 of reflector plate 290 reflected backs to utilize again.Part light penetrates this light guide plate 28 via bottom surface 285 reflections of this light guide plate 28 by this output optical zone 283, and via this this display panels 21 of optical diaphragm group 27 directives.Another part penetrates to this reflector plate 290 via this bottom surface 285, and reentered this light guide plate 28 by 290 reflections of this reflector plate, final this output optical zone 283 that penetrates is via this this display panels 21 of optical diaphragm group 27 directives, for this display panels 21 provides uniform light.
Compared with prior art, this light source 29 is arranged on this flexible circuit board 251, enlarges the area of light incidence section 282 simultaneously, no matter how attenuation of light guide plate 28, and this structure all can make light all enter in this light guide plate 28, and the utilization factor of light improves.
Seeing also Fig. 3, is the local enlarged side view of liquid crystal indicator second embodiment of the present invention.Present embodiment and first embodiment different are in the continuous v-shaped structure of side 381 definition of light guide plate 38, its light that can make the light that is sent by this light source 39 enter this light guide plate 38 and this side 381 of directive reflects, this part light is advanced in this light guide plate 38, and final directive display panels 31.
Seeing also Fig. 4, is the local enlarged side view of liquid crystal indicator the 3rd embodiment of the present invention.Present embodiment and first embodiment different are in the cambered surface of side 481 for concaving of light guide plate 48, the light that this cambered surface can make the light that is sent by this light source 49 enter this light guide plate 38 and this side 481 of directive reflects, this part light is advanced in this light guide plate 48, and final directive display panels 41.
Claims (10)
1. liquid crystal indicator, it comprises a upper substrate, a liquid crystal layer, an infrabasal plate, an optical diaphragm group and a light guide plate of stacked setting in regular turn; This liquid crystal indicator further comprises a flexible circuit board and a light source, and this flexible circuit board is arranged on this infrabasal plate, it is characterized in that: this light source is arranged at this light guide plate one side of vicinity of this flexible circuit board; This light guide plate comprises an end face, and this end face is to being defined as light incidence section by the Lights section, and this end face remainder is defined as output optical zone.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this light guide plate comprises a side that links to each other with this top surface inclination.
3. liquid crystal indicator as claimed in claim 2 is characterized in that: the angle between this side and this end face is an acute angle.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: the side of this light guide plate is continuous v-shaped structure.
5. liquid crystal indicator as claimed in claim 3 is characterized in that: the side of this light guide plate is for inwardly concaving cambered surface.
6. liquid crystal indicator as claimed in claim 1 is characterized in that: this flexible circuit board is electrically connected with this light source.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: this optical diaphragm group comprises the polaroid of contiguous this infrabasal plate.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this light source is a light emitting diode.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: this light guide plate further comprise one with this end face opposed bottom surface.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: this liquid crystal indicator further comprises a reflector plate, and this reflector plate is arranged at bottom surface one side of this light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100628919A CN100492122C (en) | 2006-09-29 | 2006-09-29 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100628919A CN100492122C (en) | 2006-09-29 | 2006-09-29 | LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101153981A CN101153981A (en) | 2008-04-02 |
| CN100492122C true CN100492122C (en) | 2009-05-27 |
Family
ID=39255722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100628919A Expired - Fee Related CN100492122C (en) | 2006-09-29 | 2006-09-29 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100492122C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630077B (en) * | 2009-08-21 | 2011-02-09 | 友达光电（苏州）有限公司 | Liquid crystal display (LCD) module |
| CN111505851A (en) * | 2020-03-27 | 2020-08-07 | 深圳市晶泰液晶显示技术有限公司 | Liquid crystal display module |
-
2006
- 2006-09-29 CN CNB2006100628919A patent/CN100492122C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101153981A (en) | 2008-04-02 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20190929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |