CN203745767U - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
- Publication number
- CN203745767U CN203745767U CN201420001000.9U CN201420001000U CN203745767U CN 203745767 U CN203745767 U CN 203745767U CN 201420001000 U CN201420001000 U CN 201420001000U CN 203745767 U CN203745767 U CN 203745767U
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- groove
- liquid crystal
- isosceles trapezoid
- 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 - Fee Related
Links
Abstract
The utility model provides a liquid crystal display comprising polarizers, a liquid crystal, TFT (thin film transistor) glass, a circuit board, a light guide plate, a backlight source and a back plate. The light guide plate comprises a substrate, a reflecting film and a diffusion layer, a cross section of the substrate is an isosceles trapezoid with a groove formed at one bottom edge, the bottom edge with the groove is a short bottom edge in the isosceles trapezoid, width of a groove opening is equal to that of the bottom edge, the groove opening is larger than or equal to the bottom of the groove, the bottom face and the side face of the groove are light incident end faces of the light guide plate, the reflecting film is arranged on a plane of two waists of the isosceles trapezoid substrate, a long bottom edge of the isosceles trapezoid substrate is a light emergent end face, and the diffusion layer is connected with the light emergent end face. Through the light guide plate with the cross section of the isosceles trapezoid structure with the groove, thickness of the display is reduced, brightness unevenness caused by unilateral illumination of the light source is avoided, the situation that a large display needs to be added with multiple light guide plates is avoided as well, and the requirements of the display for large area and thinness are met.
Description
Technical field
The utility model relates to electronic display technology field, particularly a kind of liquid crystal display that is applicable to all colour elements demonstrations.
Background technology
Liquid crystal display is the display device of planar ultra-thin, and it is made up of colour or the monochrome pixels of some, is positioned over light source or reflecting surface front.Liquid crystal display power consumption is very low, volume is little, and it replaces heavy CRT monitor comprehensively becomes the display device of main flow.The cardinal principle of liquid crystal display is to produce point, line, surface with galvanism liquid crystal molecule to coordinate back fluorescent tube to form picture.
Due to the liquid crystal panel of liquid crystal display not tool from the function of main light emission, therefore liquid crystal display need to further possess the area source that backlight module is abundant with supply liquid crystal panel and be evenly distributed, and wherein light guide plate is the key element that backlight module is provided uniform area light source.Light guide plate is to utilize the principle of reflection the light entering from light guide plate to be passed to the far-end of described light guide plate.At present, the light guide plate of internal light source has two kinds of side-light type and straight-down negatives.Straight-down negative refers to that light source, directly by penetrating under light guide plate, can exempt the complicacy of structural design, but the back that is set directly at light guide plate due to light source has caused the increase of whole backlight module volume; Side-light type refers to that light source is entered by the side of light guide plate, after the reflection of light guide plate upper and lower surface, penetrates, and be the most frequently used in the market type.But because light can weaken along with distance, edge-type light guide plate easily causes the inhomogeneous phenomenon of light guide plate luminance, and be difficult to use on large-scale display, unless polylith light guide plate is set simultaneously, or offer V-type groove, but like this in junction or the thinnest point of V-type groove easily occur fracture, cause occurring light blind spot.
Utility model content
For above-mentioned defect and the problem of prior art, the utility model object is to provide a kind of liquid crystal display, by the light guide plate of the isosceles trapezoidal structure with groove, not only reduce the thickness of display, and avoid the brightness irregularities phenomenon causing due to the one-sided irradiation of light source, also avoided the easily problem of fracture of the light guide plate on giant display.
In order to achieve the above object, the utility model is realized by the following technical solutions:
A kind of liquid crystal display, comprise polaroid one, polaroid two, liquid crystal, TFT glass, circuit board, light guide plate, backlight and backboard, described polaroid one connects liquid crystal successively, TFT glass, polaroid two, light guide plate, backlight, backboard, described circuit board connects TFT glass, described light guide plate comprises substrate, reflectance coating and diffusion layer, the xsect of described substrate is the isosceles trapezoid that groove is set on a base, the described base that groove is set is the shorter base in isosceles trapezoid, and the width of slot opening equates with this base, the opening of described groove is more than or equal to bottom portion of groove, the bottom surface of described groove and side are the light inlet end face of light guide plate, the two waists institutes that described reflectance coating is arranged on isosceles trapezoid substrate in the plane, the longer base of described isosceles trapezoid substrate is light output end, described diffusion layer is connected with light output end.
Further technical scheme, the described scattering layer being connected with light guide plate is mutually bondd and forms by multiple scattering particles.
Further technical scheme, the distribution density of described scattering particle on scattering layer successively decreased to centre gradually from periphery.
Further technical scheme, the described scattering layer being connected with light guide plate has multiple prism structures, between each prism, interconnects.
Further technical scheme, the angle between the plane of refraction of described prism is 90-150 °.
The utlity model has following advantage:
1, by xsect be the light guide plate of the isosceles trapezoidal structure with groove, make the light source of display can be arranged on middle groove position, both reduced the thickness of display, avoid again the brightness irregularities phenomenon causing due to the one-sided irradiation of light source, also avoided the situation that needs to increase polylith light guide plate on giant display or offer V-type groove light guide plate, ensureing to have realized in display brightness evenly, does not occur blind spot that its area is large, thin thickness, light guide plate be not easy the demand of fracture simultaneously.
2, because the side generation reflective phenomenon of display is many, and the density of scattering particle is successively decreased gradually from periphery to centre on scattering layer, has not only met the problem of avoiding reflective, has also saved production cost.
3, adopt the scattering layer of prism structure, facilitate one-shot forming processing, and can realize the scattering of multi-angle.Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only an embodiment of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of light guide plate in the utility model.
Fig. 3 is the diffusion layer schematic diagram of embodiment 1.
Fig. 4 is the diffusion layer schematic diagram of embodiment 2.
Fig. 5 is the light path schematic diagram that the utility model does not pass through diffusion layer.
Wherein: 1, polaroid one, 2, liquid crystal, 3, TFT glass, 4, polaroid two, 5, light guide plate, 6, backlight, 7, backboard, 8, circuit board, 6.1, diffusion layer, 6.2, substrate, 6.3, reflectance coating, 6.1.1, prismatic refraction face angle, 6.1.2, prism, 6.1.3, scattering particle.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only embodiment of the utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
According to Fig. 1, shown in Fig. 2, the utility model is a kind of liquid crystal display, comprise polaroid one, polaroid two, liquid crystal, TFT glass, circuit board, light guide plate, backlight and backboard, described polaroid one connects liquid crystal successively, TFT glass, polaroid two, light guide plate, backlight, backboard, described circuit board connects TFT glass, light guide plate comprises substrate, reflectance coating and diffusion layer, the xsect of substrate is the isosceles trapezoid that groove is set on a base, this base that groove is set is the short base in isosceles trapezoid, and the width of slot opening equates with this base, the opening of groove equals bottom portion of groove, light source is arranged in groove, the bottom surface of groove and side are the light inlet end face of light guide plate, reflectance coating is arranged in two waist planes of isosceles trapezoid substrate, the longer base of isosceles trapezoid substrate is light output end, diffusion layer is connected with light output end.As Fig. 3, diffusion layer has multiple prism structures, between each prism, interconnects, and the angle between the plane of refraction of prism can be 90-150 °, and preferably, this angle is 120 °.
Embodiment 2
The utility model is a kind of liquid crystal display, comprise polaroid, liquid crystal board, TFT glass, circuit board, light guide plate, backlight and backboard, its annexation is consistent with embodiment 1, on diffusion layer in light guide plate, scattering particle is set, its distribution density is successively decreased to centre gradually from periphery, as shown in Figure 4, not only meet the problem of avoiding reflective, also saved production cost.The needs that use according to reality, in the utility model, the opening of the substrate upper groove of light guide plate also can be greater than its bottom portion of groove.
In the utility model, the light path principle of light guide plate is as follows:
As shown in Figure 5, backlight is launched light, the light entering from groove side arrives reflectance coating by substrate, reflecting backward light output end through reflectance coating shoots, the light entering from bottom portion of groove directly arrives light output end by substrate, the light of all arrival light output ends carries out scattering through diffusion layer again, and light is penetrated to all directions.Because backlight is arranged in the groove in the middle of substrate, without source region is set separately after substrate, reduce the thickness of light guide plate; And be arranged in the middle of backlight avoided the brightness irregularities phenomenon causing due to the distance of luminous range, avoid offering V-type groove, there will not be light guide plate therefrom between fracture problem.The length of light guide plate can be set as required, so that use on giant display, light guide plate area is large, the demand of thin thickness ensureing to have realized in light guide plate luminance evenly, does not occur blind spot.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (5)
1. a liquid crystal display, comprise polaroid one, polaroid two, liquid crystal, TFT glass, circuit board, light guide plate, backlight and backboard, described polaroid one connects liquid crystal successively, TFT glass, polaroid two, light guide plate, backlight, backboard, described circuit board connects TFT glass, it is characterized in that: described light guide plate comprises substrate, reflectance coating and diffusion layer, the xsect of described substrate is the isosceles trapezoid that groove is set on a base, the described base that groove is set is the shorter base in isosceles trapezoid, and the width of slot opening equates with this base, the opening of described groove is more than or equal to bottom portion of groove, the bottom surface of described groove and side are the light inlet end face of light guide plate, the two waists institutes that described reflectance coating is arranged on isosceles trapezoid substrate in the plane, the longer base of described isosceles trapezoid substrate is light output end, described diffusion layer is connected with light output end.
2. liquid crystal display according to claim 1, is characterized in that: the described scattering layer being connected with light guide plate is mutually bondd and forms by multiple scattering particles.
3. liquid crystal display according to claim 1, is characterized in that: the described scattering layer being connected with light guide plate has multiple prism structures, between each prism, interconnects.
4. liquid crystal display according to claim 2, is characterized in that: the distribution density of described scattering particle on scattering layer successively decreased to centre gradually from periphery.
5. liquid crystal display according to claim 3, is characterized in that: the angle between the plane of refraction of described prism is 90-150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001000.9U CN203745767U (en) | 2014-01-02 | 2014-01-02 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001000.9U CN203745767U (en) | 2014-01-02 | 2014-01-02 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745767U true CN203745767U (en) | 2014-07-30 |
Family
ID=51345547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420001000.9U Expired - Fee Related CN203745767U (en) | 2014-01-02 | 2014-01-02 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300796A (en) * | 2017-06-14 | 2017-10-27 | 合肥市惠科精密模具有限公司 | A kind of eyeshield type TFT LCD liquid crystal display modules |
| CN109539186A (en) * | 2018-12-29 | 2019-03-29 | 深圳市晨北科技有限公司 | Backing structure |
-
2014
- 2014-01-02 CN CN201420001000.9U patent/CN203745767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300796A (en) * | 2017-06-14 | 2017-10-27 | 合肥市惠科精密模具有限公司 | A kind of eyeshield type TFT LCD liquid crystal display modules |
| CN109539186A (en) * | 2018-12-29 | 2019-03-29 | 深圳市晨北科技有限公司 | Backing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103727467B (en) | Backlight module and the liquid crystal indicator with this backlight module | |
| US10132966B2 (en) | Optical element including strip-shaped prisms, light guide plate, prism, backlight module and display device | |
| US9459393B2 (en) | Backlight module structure | |
| WO2018176524A1 (en) | Transflective liquid crystal display | |
| CN106681052B (en) | A kind of backlight module and display device | |
| CN102859261A (en) | Planar light source apparatus and display apparatus using same | |
| CN201954400U (en) | LED mixed light backlight source | |
| WO2016101391A1 (en) | Method for improving brightness uniformity of liquid crystal module | |
| CN103760716A (en) | Array substrate and display device | |
| CN108873129A (en) | Reflector plate, side entrance back module and liquid crystal display | |
| CN209373295U (en) | A kind of brightness enhancing display screen structure | |
| TW201915982A (en) | Spliced display apparatus | |
| CN103278873A (en) | Color filter structure and liquid crystal display panel using same | |
| WO2020150867A1 (en) | Direct-type backlight source and manufacturing method therefor, and display device | |
| TWM466278U (en) | Thinning LED direct-type backlight module | |
| US20210325594A1 (en) | Backlight module, method for manufacturing the same, and liquid crystal display device | |
| CN201218442Y (en) | Backlight module and LCD device containing the same | |
| CN204855852U (en) | Trapezoidal light guide plate | |
| CN203745767U (en) | Liquid crystal display | |
| WO2020062717A1 (en) | Display device | |
| WO2016086534A1 (en) | Light guide plate and manufacturing method therefor | |
| WO2016183909A1 (en) | Backlight module and liquid crystal display device | |
| KR20140075355A (en) | Liquid crystal display device | |
| CN204314573U (en) | Backlight module | |
| CN203823596U (en) | Liquid crystal display device and backlight module thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU GUOZIYUAN HIGH-TECH INDUSTRY CO., LTD. Free format text: FORMER NAME: JIANGSU GUOZIYUAN SYSTEM ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210000, Jiangsu, Nanjing Xuanwu District, Xuanwu Avenue, 699-1, Xu Zhuang software base, CMC administrative services center 2 floor Patentee after: JIANGSU GUOZIYUAN HI-TECH INDUSTRY CO., LTD. Address before: 210000, Jiangsu, Nanjing Xuanwu District, Xuanwu Avenue, 699-1, Xu Zhuang software base, CMC administrative services center 2 floor Patentee before: Jiangsu state resource system Engineering Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |