CN1260599C - Luminous module with single circuit board and plane display device - Google Patents
Luminous module with single circuit board and plane display device Download PDFInfo
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- CN1260599C CN1260599C CN 02153551 CN02153551A CN1260599C CN 1260599 C CN1260599 C CN 1260599C CN 02153551 CN02153551 CN 02153551 CN 02153551 A CN02153551 A CN 02153551A CN 1260599 C CN1260599 C CN 1260599C
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- circuit board
- light source
- guide plate
- light guide
- lower light
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Abstract
The present invention relates to a luminous module with a single circuit board and a plane display device. The luminous module of the present invention only needs a power supply and has the advantages of simple structure and easy assembly, and the number of light sources and the luminance effect on the upper and the lower surfaces of a circuit board can be adjusted by the luminous module; the display device of the present invention uses the luminous module as a back light module. The plane display device of the present invention is provided with a single circuit board and comprises a display panel and the luminous module. The luminous module of the present invention comprises a single circuit board, an upper light source, a lower light source and a light conducting board, wherein the upper light source and the lower light source are arranged on the upper and the lower surfaces of the single circuit board, and the light conducting board is arranged beside the circuit board and is provided with a first and a second surfaces. The light conducting board is used for guiding light emitted by the upper and the lower light sources to the first surface.
Description
Technical field
The invention belongs to illuminating module and make the display of module backlight with it, the illuminating module and the flat-panel screens of the single circuit board of particularly a kind of tool.
Background technology
In two in recent years screen (dual face) flat-panel screens fast developments, and be applied on the electrical appliance such as mobile phone.Existing pair of screen flat-panel screens normally only uses a light source to use for two display panels.So, because of light source can't effectively utilize, making has the briliancy of a display panel lower, and the briliancy of another side display panel also can't reach best, the difficult control of the stabilized reference of briliancy.
Therefore, in order to improve above-mentioned shortcoming, the someone uses two light sources to use for two display panels.
As shown in Figure 1, this kind uses two screen LCD flat-panel screens of two light sources to comprise upper and lower two LCD panel 100a, 100b and be clipped in two illuminating module 1M between LCD panel 100a, the 100a.
Illuminating module 1M comprises two circuit board 200a, 200b, two groups of light source 300a, 300b, two light guide plate (light guiding plate) 400a, 400b, 500,520 and two groups of optical sheet set of two reflector plates (optical sheet) 600a, 600b.
Two groups of optical sheet set 600a, 600b comprise diffusion sheet (diffuser sheet) 620a, 620b and two prismatic lenses (prism sheet) 640a, 640b, 660a, 660b respectively.
As shown in Figure 1, this kind uses two screen LCD flat-panel screens system's uses two circuit board 200a, 200b of two light sources, and light source 300a, a 300b are set respectively on each circuit board 200a, 200b.The light that light source 300a, 300b sent enters LCD panel 100a, 100b via light guide plate 400a, 400b, reflector plate 500, optical sheet set 600a, 600b, arrives 1A, 1B face.
Yet two screen LCD flat-panel screens of conventional construction have following shortcoming:
1, the briliancy of 1B face is much lower more than 1A, and the difficult control of the stabilized reference of briliancy.
2, because of light source can't effectively utilize, the performance of the briliancy of 1A face can't reach best.
3, can't make the flat-panel screens that all there is higher briliancy performance on the two sides.
4, the size of y direction can be bigger.
5, be arranged at respectively on two circuit boards owing to two light sources, therefore need two power supplys (power), structure is than complexity and assemble trouble.
Summary of the invention
The purpose of this invention is to provide a kind of only need a power supply, simple in structure, assembling easily, can adjust the illuminating module and the flat-panel screens of the single circuit board of tool of upper and lower surface source of light quantity of circuit board and briliancy effect.
The present invention includes display panel and illuminating module; Illuminating module of the present invention comprises single circuit board, is arranged at the upper and lower light source on the upper and lower surface of single circuit board, is arranged at the upper and lower light guide plate on upper and lower light source next door; Upper and lower light guide plate has first and second surface respectively; Upper and lower light guide plate causes its first surface in order to the photoconduction that upper and lower light source is sent respectively.
Wherein:
The upper and lower light source that is arranged at the upper and lower surface of circuit board is all backlight.
The light guide plate second surface be provided with in order to will go up/light that following light source sends reflexes to the horizontal reflection sheet of its first surface.
Circuit board is the straight shape circuit board that is positioned at light guide plate one side.
Circuit board is the L font circuit board that is positioned at the light guide plate dual-side.
Circuit board is the JiongZi Xing circuit board that is positioned at light guide plate three sides.
Circuit board is the square shape circuit board around the contour light guide plate.
Upper and lower light source is a plurality of light-emittingdiodes.
The upper and lower light source that is arranged at the upper and lower surface of circuit board goes to upper and lower corresponding arrangement or goes to upper and lower and is staggered.
The light guide plate first surface is provided with optical sheet set; Optical sheet set comprises diffusion sheet and digonous eyeglass.
The flat-panel screens of the single circuit board of a kind of tool, it is measure-alike two screen flat-panel screens of two screens, it comprises upper and lower display panel and is clipped in illuminating module between the upper and lower display panel; Illuminating module comprises circuit board, and upper and lower light source is arranged at the upper and lower light guide plate on upper and lower light source next door; Circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light guide plate has first and second surface respectively; Upper and lower light guide plate causes its first surface in order to the photoconduction that upper and lower light source is sent respectively.
The flat-panel screens of the single circuit board of a kind of tool, it is the different two screen flat-panel screens of size of two screens, it comprises that display panel, size are less than the following display panel of last display panel and be clipped in illuminating module between the upper and lower display panel; Illuminating module comprises circuit board, and upper and lower light source is arranged at the upper and lower light guide plate on upper and lower light source next door; Circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light guide plate has first and second surface respectively; Upper and lower light guide plate causes its first surface in order to the photoconduction that upper and lower light source is sent respectively.
The flat-panel screens of the single circuit board of a kind of tool, it is single screen flat-panel screens, it comprises display panel and illuminating module; Illuminating module comprises circuit board, and upper and lower light source is arranged at the upper and lower light guide plate on upper and lower light source next door; Circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light guide plate has first and second surface respectively; Upper and lower light guide plate causes its first surface in order to the photoconduction that upper and lower light source is sent respectively.
Owing to the present invention includes display panel and illuminating module; Illuminating module of the present invention comprises single circuit board, is arranged at the upper and lower light source on the upper and lower surface of single circuit board, is arranged at the upper and lower light guide plate on upper and lower light source next door; Upper and lower light guide plate has first and second surface respectively; Upper and lower light guide plate causes its first surface in order to the photoconduction that upper and lower light source is sent respectively.The illuminating module of the single circuit board of tool of the present invention is only used a circuit board, and in the upper and lower surface of circuit board upper and lower light source is set, and simple in structure and assembling easily; When the illuminating module of the single circuit board of tool of the present invention was used in two screen flat-panel screens, upper and lower light guide plate all can directly obtain light source; Therefore, can increase or reduce the quantity of light source to the upper and lower surface of circuit board respectively, and then reach the effect that increases or reduce upper and lower display panel briliancy respectively, simultaneously, can do drop adjustment significantly when the briliancy of upper and lower display panel finds expression in design.Not only need a power supply, simple in structure, assembling easily, and can adjust upper and lower surface source of light quantity of circuit board and briliancy effect, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, traditional double screen plane display device structure schematic sectional view.
Fig. 2, be the embodiment of the invention one structural representation cut-open view.
Fig. 3, be light source arrangement mode synoptic diagram on the circuit board of the present invention (upper and lower light source system go to upper and lower corresponding the arrangement).
Fig. 4, be light source arrangement mode synoptic diagram on the circuit board of the present invention (upper and lower light source system go to upper and lower be staggered).
Fig. 5, for board structure of circuit schematic isometric of the present invention (circuit board is the L font).
Fig. 6, for board structure of circuit schematic isometric of the present invention (circuit board is JiongZi Xing).
Fig. 7, for board structure of circuit schematic isometric of the present invention (circuit board is square shape).
Fig. 8, be the embodiment of the invention two structural representation cut-open views.
Fig. 9, be the embodiment of the invention three structural representation cut-open views.
Embodiment
Embodiment one
As shown in Figure 2, the flat-panel screens of the single circuit board of tool of the present invention is the identical haply two screen flat-panel screens of the size of two screens, and it is included as upper and lower display panel 10a, the 10b of LCD panel and is clipped in illuminating module 1M1 between upper and lower display panel 10a, the 10b.
Illuminating module 1M1 comprise a circuit board 20, respectively be arranged at upper and lower light source 30a, the 30b on the upper and lower surface of circuit 20 plates, respectively be arranged at upper and lower light source 30a, 30b the next door upper and lower light guide plate (lightguiding plate) 40a, 40b, horizontal reflection sheet 50, upper and lower reflector plate 52a, 52b and upper and lower optical sheet set (optical sheet) 60a, 60b.
Upper and lower light guide plate 40a, 40b have first surface and second surface.
Upper and lower reflector plate 52a, 52b are arranged at the other relative side with upper and lower light source 30a, 30b of upper and lower light guide plate 40a, 40b respectively.
Upper and lower optical sheet set 60a, 60b are arranged at respectively between display panel 10a and the last light guide plate 40a first surface and reach between following display panel 10b and the following light guide plate 40b first surface.
Upper and lower light source 30a, 30b are arranged at upper and lower display panel 10a, the 10b back side respectively with the backlight (back-light) as upper and lower display panel 10a, 10b, its light that sends sees through upper and lower leaded light guide plate 40a, 40b respectively earlier, and respectively through 50 reflections of horizontal reflection sheet, see through upper and lower light guide plate 40a, 40b and upper and lower optical sheet set 60a, 60b more respectively in regular turn, and be directed to upper and lower display panel 10a, 10b arrival 1A, the 1B face of entering respectively.
The shape of upper and lower light guide plate 40a, 40b does not have certain limitation, and it can be the clapboard that the cross section is wedge shape (wedge), also can be the rectangular flat board in cross section.
Generally speaking, optical sheet comprises diffusion sheet (diffuser sheet), prismatic lens (prism sheet) or both combinations.The function of diffusion sheet is that the light that light source is sent evenly distributes; The function of prismatic lens then is that light is concentrated to increase briliancy.
As shown in Figure 2, upper and lower optical sheet set 60a, 60b lay respectively on upper and lower light guide plate 40a, 40b 1A, the 1B, and it comprises diffusion sheet 62a, 62b and two prismatic lens 64a, 64b, 66a, 66b respectively.
As shown in Figure 2, circuit board 20 is straight shape, and it is positioned on upper and lower light guide plate 40a, the 40b side.
As shown in Figure 3, circuit board 20 upper and lower surfaces are respectively equipped with a plurality of light-emittingdiode (LED that are; Light Emitting Diode) upper and lower light source 30a, 30b.As shown in Figure 3, upper and lower light source 30a, 30b are upper and lower corresponding the arrangement; Also can be as shown in Figure 4, upper and lower power supply 32a, 32b are staggered and arrange.The quantity of upper and lower light source 30a, 30b (32a, 32b) does not have certain limitation, can according to briliancy require and display panel big or small and determine.
Circuit board can be hard circuit board or flexible circuit board.When circuit board is flexible circuit board, the flexible circuit board doubling can be used.As shown in Figure 3, can use rigid merely or flexible circuit board,, down on the two sides light source is set thereon for straight shape circuit board.Perhaps, can use flexible circuit board, only light source is set,, make and do not establish light source surface contact, thereby constitute the doubling formula flexible circuit board that upper and lower faces is provided with upper and lower light source then with its doubling at its single face.
In addition, except straight shape circuit board, the shape of circuit board also can have other variations.
As shown in Figure 5, circuit board 24 is the L font, and its upper and lower surface is respectively equipped with a plurality of staggered upper and lower light source 34a, 34b of being.Be L font circuit board 24 and be on the upper and lower light guide plate 40a that is arranged at as shown in Figure 2, the 40b dual-side.
As shown in Figure 6, circuit board 26 is JiongZi Xing, and its upper and lower surface is respectively equipped with a plurality of staggered upper and lower light source 36a, 36b of being.Be JiongZi Xing circuit board 26 and be on the upper and lower light guide plate 40a that is arranged at as shown in Figure 2,40b three sides.
As shown in Figure 7, circuit board 28 is square shape, and its upper and lower surface is respectively equipped with a plurality of staggered upper and lower light source 38a, 38b of being.Being square shape circuit board 28 is around upper and lower light guide plate 40a, the 40b that is compassingly set at as shown in Figure 2.
As shown in Figure 2, upper and lower light guide plate 40a, 40b all can directly obtain light source.Therefore, can increase or reduce the quantity of light source for the upper and lower surface of circuit board respectively, and then reach the effect that increases or reduce upper and lower display panel 10a, 10b surface brightness respectively.
Embodiment two
As shown in Figure 8, the flat-panel screens of the single circuit board of tool of the present invention is the different two screen flat-panel screens of the size of two screens, and its last display panel 10a, size that is included as the LCD panel is less than the following display panel 10c of last display panel 10a and be clipped in illuminating module 1M2 between upper and lower display panel 10a, the 10c.
Illuminating module 1M2 comprise a circuit board 20, respectively be arranged at upper and lower light source 30a, the 30b on circuit board 20 upper and lower surfaces, respectively be arranged at upper and lower light source 30a, 30b the next door upper and lower light guide plate (lightguiding plate) 40a, 40c, horizontal reflection sheet 50, upper and lower reflector plate 52a, 52b and upper and lower optical sheet set (optical sheet) 60a, 60c.
Following light guide plate 40c is corresponding with following display panel 10c size and less than last light guide plate 40a.Upper and lower light guide plate 40a, 40c have first surface and second surface.
Upper and lower reflector plate 52a, 52b are arranged at the other relative side with upper and lower light source 30a, 30b of upper and lower light guide plate 40a, 40c respectively.
Following optical sheet set 60c is corresponding with following display panel 10c size and less than last optical sheet set 60a.
Upper and lower optical sheet set 60a, 60c are arranged at respectively between display panel 10a and the last light guide plate 40a first surface and reach between following display panel 10c and the following light guide plate 40c first surface.
Upper and lower light source 30a, 30b are arranged at upper and lower display panel 10a, the 10c back side respectively with the backlight (back-light) as upper and lower display panel 10a, 10c, its light that sends sees through upper and lower leaded light guide plate 40a, 40c respectively earlier, and respectively through reflector plate 50 reflections, see through upper and lower light guide plate 40a, 40c and upper and lower optical sheet set 60a, 60c more respectively in regular turn, and be directed to upper and lower display panel 10a, 10c arrival 1A, the 1B face of entering respectively.
As shown in Figure 8, upper and lower optical sheet set 60a, 60c lay respectively on upper and lower light guide plate 40a, 40c 1A, the 1B, and it comprises diffusion sheet 62a, 62c and two prismatic lens 64a, 64c, 66a, 66c respectively.
Embodiment three
As shown in Figure 9, the flat-panel screens of the single circuit board of tool of the present invention is single screen flat-panel screens, and it is included as the display panel 10 and the illuminating module 1M3 of LCD panel.
Illuminating module 1M3 comprise a circuit board 20, respectively be arranged at circuit board 20 upper and lower surfaces upper and lower light source 30a, 30b, be arranged at upper and lower light source 30a, 30b next door light guide plate 40, be arranged at light guide plate 40 belows horizontal reflection sheet 50, be arranged at other reflector plate 52 and the optical sheet set (optical sheet) 60 with upper and lower light source 30a, 30b opposite side of light guide plate 40.
Optical sheet set 60 is arranged between display panel 10 and the light guide plate 40.
Upper and lower light source 30a, 30b are arranged at display panel 10 back sides respectively with the backlight (back-light) as display panel 10, its light that sends sees through leaded light guide plate 40 respectively earlier, and through reflector plate 50 reflections, see through light guide plate 40 and optical sheet set 60 more respectively in regular turn, enter display panel 10 and be directed to.
Optical sheet set 60 lays respectively at above the light guide plate 40, and it comprises diffusion sheet 62 and two prismatic lenses 64,66.
Illuminating module 1M2, the 1M3 of the single circuit board of tool of the present invention is applicable to penetration (transmissive), reflective (reflective) or semi-reflection and semi-transparent formula (transflective) flat-panel screens.
In sum, illuminating module 1M2, the 1M3 of the single circuit board of tool of the present invention only uses a circuit board 20, and upper and lower light source 30a, 30b (32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b) being set in circuit board 20 upper and lower surfaces, simple in structure and assembling is easily.
When the illuminating module of the single circuit board of tool of the present invention was used in two screen flat-panel screens, upper and lower light guide plate all can directly obtain light source.Therefore, can increase or reduce the quantity of light source respectively to the upper and lower surface of circuit board, and then reach the effect that increases or reduce upper and lower display panel briliancy respectively, simultaneously, when finding expression in design, the briliancy of upper and lower display panel 1A, 1B face can do drop adjustment significantly.
Claims (13)
1, the illuminating module of the single circuit board of a kind of tool, it comprises circuit board, upper and lower light source is arranged at the circuit board next door and has first and second surperficial light guide plate; It is characterized in that described circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light source next door is respectively equipped with upper and lower light guide plate, causes the first surface of upper and lower light guide plate in order to the photoconduction that upper and lower light source is sent.
2, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that the described upper and lower light source that is arranged at the upper and lower surface of circuit board is all backlight.
3, the illuminating module of the single circuit board of tool according to claim 1, it is characterized in that described light guide plate second surface be provided with in order to will go up/light that following light source sends reflexes to the horizontal reflection sheet of its first surface.
4, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described circuit board is the straight shape circuit board that is positioned at light guide plate one side.
5, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described circuit board is the L font circuit board that is positioned at the light guide plate dual-side.
6, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described circuit board is the JiongZi Xing circuit board that is positioned at light guide plate three sides.
7, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described circuit board is the square shape circuit board around the contour light guide plate.
8, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described upper and lower light source is a plurality of light-emittingdiodes.
9, according to the illuminating module of claim 1,4,5,6, the single circuit board of 7 or 8 described tools, it is characterized in that the described upper and lower light source that is arranged at the upper and lower surface of circuit board go to upper and lower corresponding arrange or go to upper and lower be staggered.
10, the illuminating module of the single circuit board of tool according to claim 1 is characterized in that described light guide plate first surface is provided with optical sheet set; Optical sheet set comprises diffusion sheet and digonous eyeglass.
11, the flat-panel screens of the single circuit board of a kind of tool, it is measure-alike two screen flat-panel screens of two screens, it comprises upper and lower display panel and is clipped in illuminating module between the upper and lower display panel; Illuminating module comprises circuit board, and upper and lower light source is arranged at the circuit board next door and has first and second surperficial light guide plate; It is characterized in that described circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light source next door is respectively equipped with upper and lower light guide plate, causes the first surface of upper and lower light guide plate in order to the photoconduction that upper and lower light source is sent.
12, the flat-panel screens of the single circuit board of a kind of tool, it is the different two screen flat-panel screens of size of two screens, it comprises that display panel, size are less than the following display panel of last display panel and be clipped in illuminating module between the upper and lower display panel; Illuminating module comprises circuit board, and upper and lower light source is arranged at the circuit board next door and has first and second surperficial light guide plate; It is characterized in that described circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light source next door is respectively equipped with upper and lower light guide plate, causes the first surface of upper and lower light guide plate in order to the photoconduction that upper and lower light source is sent.
13, the flat-panel screens of the single circuit board of a kind of tool, it is single screen flat-panel screens, it comprises display panel and illuminating module; Illuminating module comprises circuit board, and upper and lower light source is arranged at circuit board next door and has first and second surperficial light guide plate and it is characterized in that described circuit board is single circuit board; Upper and lower light source is arranged at the upper and lower surface of single circuit board; Upper and lower light source next door is respectively equipped with upper and lower light guide plate, causes the first surface of upper and lower light guide plate in order to the photoconduction that upper and lower light source is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153551 CN1260599C (en) | 2002-11-26 | 2002-11-26 | Luminous module with single circuit board and plane display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153551 CN1260599C (en) | 2002-11-26 | 2002-11-26 | Luminous module with single circuit board and plane display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1503032A CN1503032A (en) | 2004-06-09 |
| CN1260599C true CN1260599C (en) | 2006-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02153551 Expired - Fee Related CN1260599C (en) | 2002-11-26 | 2002-11-26 | Luminous module with single circuit board and plane display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260599C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8841710B2 (en) | 2008-07-31 | 2014-09-23 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443974C (en) * | 2005-09-30 | 2008-12-17 | 群康科技(深圳)有限公司 | Liquid-crystal display mould set |
| CN110045545B (en) * | 2019-05-17 | 2022-04-29 | 上海中航光电子有限公司 | Display device |
-
2002
- 2002-11-26 CN CN 02153551 patent/CN1260599C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8841710B2 (en) | 2008-07-31 | 2014-09-23 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1503032A (en) | 2004-06-09 |
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Granted publication date: 20060621 Termination date: 20151126 |