CN1841445A - Display device - Google Patents

Display device Download PDF

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Publication number
CN1841445A
CN1841445A CNA2005100820707A CN200510082070A CN1841445A CN 1841445 A CN1841445 A CN 1841445A CN A2005100820707 A CNA2005100820707 A CN A2005100820707A CN 200510082070 A CN200510082070 A CN 200510082070A CN 1841445 A CN1841445 A CN 1841445A
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CN
China
Prior art keywords
display device
light
guide unit
optical guide
light source
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.)
Pending
Application number
CNA2005100820707A
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Chinese (zh)
Inventor
高亨锡
金秀珍
李东浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1841445A publication Critical patent/CN1841445A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/04Resilient mountings, e.g. shock absorbers 
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0061Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids adapted for disinfecting or sterilising
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/106Dust removal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08Radiation
    • A61L2/10Ultraviolet radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10Apparatus features
    • A61L2202/11Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

A display device including a display panel displaying an image; a light source unit supplying light to the display panel, and a light guiding unit including a light guiding section which has a light receiving surface positioned adjacent to the light source unit and a light emitting surface positioned opposite to the display panel and which guides light emitted from the light source unit to the display panel, a side wall section forming a reception space for receiving the display panel along the edges of the light guiding section, and a fixing section fixing the light guiding section to the display device.

Description

Display device
Technical field
The present invention relates to a kind of display device, more specifically, relate to a kind of packaging technology that improves backlight assembly, and strengthened brightness to improve the display device of optical efficiency.
Background technology
The development that semiconductor technology is obtained has recently reduced the size and the weight of display device.The flat display board that is used for small-sized and light-duty display device is divided into Field Emission Display (FED) plate, and vacuum fluorescence shows (VFD) plate, liquid crystal display (LCD) plate, and the organic light emission pipe shows (OLED) plate, and plasma display panel (PDP).Above-mentioned every kind of display board generally includes a pair of substrate that is arranged opposite to each other, and the inner space between the described substrate keeps high vacuum state.
For example, adopt liquid crystal display (LCD) device of LCD panel to have lot of advantages, for example size is little, in light weight, energy consumption is low, and has all obtained application in the middle of a lot of different messaging devices that need display device.
Described liquid crystal indicator is by applying the molecules align that voltage changes liquid crystal, and be converted into change of optical property, the for example birefringence of liquid crystal cells, optical activity, two tropisms and light scattering, thus according to the variation of molecules align, be visible change with the phototransformation of sending.That is to say that liquid crystal indicator is the light-receiving display device, it is modulated light by liquid crystal cells, with this video data.
As the light-receiving display device, liquid crystal indicator is used from the light of backlight assembly and is supplied with, and on LCD panel display image.The light source cell of backlight assembly sends light, and it is guided by optical plate.By being positioned at the brightness of optics thin layer group (optical sheet group) the enhancing light on the optical plate, subsequently, light is provided to liquid crystal board.
Traditional backlight assembly comprises a lot of elements, light source cell for example, optical plate, optics thin layer group, and the shaping frame (mold frame) that is used to receive and support described element.
Therefore, because the complex process of assembling backlight assembly, the time of assembling process increases, and has increased the possibility that inefficacy takes place in assembling process.In addition, because external impact etc. causes forming the element of backlight assembly when moving or dislocate, be difficult to effectively utilize the light that sends by light source cell.Especially, for example, when display device has the display board of two front surfaces that are installed on the equipment folded part respectively and rear surface, mobile phone for example, the structure of backlight assembly is more complicated, and therefore, it is more serious that the problems referred to above may become.
In addition, the light that sends at light source cell reaches optical plate, and by before the optical plate guiding, in light path light leak may take place, thereby cause the loss of brightness.
Summary of the invention
The invention provides a kind of display device, described display device can be improved the packaging technology of backlight assembly, and increases brightness to improve optical efficiency.
In following explanation, will set forth other features of the present invention, its part is obvious from described description, perhaps can by to of the present invention put into practice known.
The invention discloses a kind of display device, it comprises: the display board of display image; The light source cell of light is provided for described display board; And the optical guide unit that comprises the photoconduction part, described light guide portion branch comprises: the light receiving surface relative with light source cell; Relative with described display board, and the light that light source cell sends is guided to the light emitting surface of display board; Define the sidewall sections in the space that receives display board along the marginal portion of described photoconduction part; With the fixed part that is used for fixing described photoconduction part.
Should be understood that above-mentioned general explanation and following detailed description are exemplary and illustrative, its intention is to invent as requested further explanation is provided.
Description of drawings
Here provided to the invention provides the accompanying drawing of further understanding, it has constituted the part of this instructions, and shows embodiments of the invention, and is used from explanation principle of the present invention with description one:
Fig. 1 illustrates the decomposition diagram of display device according to an embodiment of the invention;
Fig. 2 is the skeleton view that the couple state of optical guide unit shown in Figure 1 and printed circuit board (PCB) is shown;
Fig. 3 illustrates the synoptic diagram that light passes the path of optical guide unit shown in Figure 1;
Fig. 4 illustrates the optical screen film that is attached to optical guide unit shown in Figure 1 and the skeleton view of optical reflection film;
Fig. 5 is an optical guide unit according to another embodiment of the present invention, shaping frame, the couple state of underframe (bottomchassis) and printed circuit board (PCB).
Embodiment
Below, with reference to the accompanying drawings display device is according to an embodiment of the invention described in detail.In the accompanying drawings, the display device that has adopted twin backlight assembly is shown schematically as an example, that is, and twofold type mobile phone.Embodiments of the invention only are intended to exemplify the present invention, and therefore the invention is not restricted to these
Embodiment.
Omitted for convenience's sake and the irrelevant element of practice of the present invention, in whole instructions, used the same reference numerals to represent mutually the same or similar element.
Below, illustrated with reference to Fig. 1,2,3 and 4 pairs of embodiments of the invention.
As shown in Figure 1, display device 10 can comprise display plate component 200 and be respectively the backlight assembly 300 and 400 that display board 210,220 provides light.Display device 10 may further include upper frame (top chassis) 510, shaping frame 550 and underframe 520, thereby fixing and/or support display plate component 200 and backlight assembly 300,400.
Display plate component 200 comprises board unit 210, daughter board unit 220, the first flexible PCBs, 230, the second flexible PCBs 240, printed circuit board (PCB) 250, and integrated circuit (IC) chip 260.Integrated circuit (IC) chip 260 is that the form according to COF (chip on the film) or TCP (band carries encapsulation) forms.
Although figure 1 illustrates two plate unit 210 and 220, the invention is not restricted to two plate unit 210 and 220.Can comprise two or more plates unit, that is to say at least two plate unit.Similarly, although two LCD panel are shown as plate unit 210 and 220 in Fig. 1,, it is illustrated plate of the present invention unit with being intended to, but the invention is not restricted to this.Therefore, can comprise one or more LCD panel, maybe can adopt other light-receiving display board.
Board unit 210 is greater than the daughter board unit 220 relative with board unit 210.Display device 10 especially can be used for collapsible or cover-lifting type mobile phone, wherein, provides board unit 210 at the inside surface of folded part, provides daughter board unit 220 at the outside surface of folded part.Therefore, when closing the folded part of folding device, can in having the daughter board unit 220 of small screen size, show less relatively quantity of information such as the time; When folded part is opened, for example, when communication, in board unit 210, show relatively large quantity of information with screen sizes.
Inner structure to the board unit 210 that adopts LCD panel is illustrated below.Because the structure of the structure of daughter board unit 220 and board unit 210 is about the same, so omitted detailed description to daughter board unit 220.
Board unit 210 comprises: a TFT plate 211 forms a plurality of thin film transistor (TFT)s (TFT) on first plate 211; First color filter plate 212 relative with a TFT plate 211; And the liquid crystal (not shown) that between plate 211 and 212, provides.Although in diagram, do not provide, in the front of first color filter plate 212 and the back side of a TFT plate 211 polarization plates has been installed, so that the visible light that the polarization plates linear polarization provides from backlight assembly 300.
The one TFT plate 211 comprises: a plurality of gate line and data lines that are formed at the matrix shape on the transparent insulation substrate (not shown); Be formed at the thin film transistor (TFT) of the point of crossing between described gate line and the data line (not shown); And with the coupling of described thin film transistor (TFT), and by the pixel electrode of making such as the transparent conductive material of ITO (tin indium oxide).In thin film transistor (TFT), source terminal is connected with data line, and gate terminal is connected with gate line, and drain terminal is connected with pixel electrode.
Therefore, signal data is sent to the gate line and the data line of board unit 210 from printed circuit board (PCB) 250 by first flexible PCB 230, and inputs to the source terminal and the gate terminal of thin film transistor (TFT).According to signal data, the opening and closing thin film transistor (TFT) switches the pixel electrode that is connected with its drain terminal thus.
First color filter plate 212 is relative with a TFT plate 211, and is provided with thereon.In the middle of non-limiting example, first color filter plate 212 can be a kind of like this plate: formation has trichromatic pixel on first color filter plate 212, for example, red, green, blue, or it is bluish-green, pinkish red, yellow, as the colour element that shows pre-color in the transmission light time, and on the whole surface of first color filter plate 212, form the public electrode of making by ITO.Therefore, when the thin film transistor (TFT) of opening as switching device, between pixel electrode and public electrode, form electric field.The arrangement angle of the liquid crystal molecule that provides between a TFT plate 211 and first color filter plate 212 is owing to electric field changes, and therefore, because the variation of arrangement angle, obtains the image change on the light transmission of expectation.
For the arrangement angle of controlling liquid crystal molecule and time of arranging liquid crystal molecule, for the gate line and the data line of a TFT plate 211 provides drive signal and timing signal.Integrated circuit (IC) chip 260 is positioned at or is installed on the TFT plate 211, and can cover with diaphragm.Provide drive signal by flexible PCB 230 to integrated circuit (IC) chip 260 from printed circuit board (PCB) 250, generation is used to drive the data drive signal and the gate drive signal of board unit 210, and a plurality of timing signals that are used for providing signal, and gate drive signal and data drive signal are transferred to the gate line and the data line of board unit 210 respectively at reasonable time.
Daughter board unit 220 comprises the 2nd TFT plate 221 and second color filter plate 222, and the drive signal that is provided by second flexible PCB 240 by another integrated circuit (IC) chip (not shown) by printed circuit board (PCB) 250 is provided.
A plurality of ohm of elements 255 are installed on printed circuit board (PCB) 250, are used for signal is provided to first flexible PCB 230 and second flexible PCB 240, and will be installed in its end such as the aerial lug of mobile phone connector 256.The signal of the window unlatching of indication folded part and closed degree or angle is provided to first flexible PCB 230 by mobile phone connector 256.First flexible PCB, 230 usefulness printed circuit board (PCB)s connect board unit 210.Although for convenience, in Fig. 1, cut away first flexible PCB 230,, first flexible PCB 230 is connected to form a main body with board unit 210.
Backlight assembly comprises first backlight assembly 300 and second backlight assembly 400, described first and second backlight assemblies 300 and 400 light that light source cell 310 and 410 is sent provide respectively to board unit 210 and daughter board unit 220, and they are in contact with one another between board unit 210 and daughter board unit 220.According to above-mentioned embodiments of the invention shown in Figure 1, in shaping frame 550, hold or first backlight assembly 300 is set, and second backlight assembly 400 is installed on the printed circuit board (PCB) 250 and coupling with it.
First backlight assembly 300 comprises: first light source cell 310 that board unit 210 is provided light; The optical plate 320 of the light that guiding is sent from light source cell 310; The reflective thin layer 340 of reflection ray; The brightness of the light that raising is sent from optical plate 320, and provide the first optics thin layer group 330 to board unit 210 with described light; And the shaping frame that holds and support the parts of the first above-mentioned at least backlight assembly 300.
Although Fig. 1 illustrates light emitting diode (LED) and is positioned at or is installed on the flexible board 312, as first light source cell 310,, this is as an example of first light source and the invention is not restricted to this.Therefore, also can adopt other light sources as first light source cell 310, for example lamp.In addition, also can use inside to have the line source and the area source of the light emitting diode 311 of the module made.Although figure 4 illustrates three light emitting diodes 311,, should be understood that the invention is not restricted to this, the number of light emitting diode 311 can be provided with as required.Flexible board 312 is connected with printed circuit board (PCB) 250, and provides light source control signal by it, drives first light source cell 310 thus.
The first optics thin layer group 330 comprises diffusion thin layer and prism thin layer, the diffusion thin layer is used for light is spread to improve uniformity of light, feasible light of advancing towards board unit 210 can part not assembled to form spot in board unit 210 in optical plate 320, and the prism thin layer is used for improving brightness by making the light that passes the diffusion thin layer vertically pass board unit.The first optics thin layer group 330 may further include the protection thin layer, and described protection thin layer is protected dust, drawn the diffusion thin layer and the prism thin layer of quarter or other pollutant sensitivities, and prevents to introduce particle.
Reflecting surface thin layer 340 once more towards optical plate 320, reduces light loss and helps light to spread by optical plate 320 by the light reflection that will send along the reverse direction of board unit 210, improves the uniformity of light to board unit 210 transmission thus.
Shaping frame 550 holds and supports first light source cell 310, optical plate 320, reflecting surface thin layer 340 and the first optics thin layer group 330, and holds and support board unit 210 with it.Top and bottom at shaping frame 550 provide upper frame 510 and underframe 520 to hold said elements respectively.The top of shaping frame 550 and bottom intercouple in the side of shaping frame 550.
Second backlight assembly 400 comprises the secondary light source unit 410 that daughter board unit 220 is provided light; With optical guide unit 420, optical guide unit 420 is coupled to printed circuit board (PCB) 250, and the light that secondary light source 410 sends is guided to daughter board unit 220, and it holds and supports second optics thin layer group 430 and the daughter board unit 220.The reflecting plate 440 that provides between optical guide unit 420 and printed circuit board (PCB) 250 is provided second backlight assembly 400.Printed circuit board (PCB) and optical guide unit 420 directly are coupled, and are arranged at underframe 520 belows.
Can form conjugate foramen 251 in the precalculated position of printed circuit board (PCB) 250, it is coupled to optical guide unit 420.Reflecting plate 440 is installed at least a portion printed circuit board (PCB) 250, and it is coupled to optical guide unit 420.Can for example adopt double sticky tape or adhesive according to various technology, reflecting plate 440 is installed on printed circuit board (PCB) 250.
Secondary light source unit 410 can directly be installed on the surface of the printed circuit board (PCB) 250 that is connected with optical guide unit 420.Secondary light source unit 410 comprises light emitting diode, can adopt solder technology directly it to be installed on the printed circuit board (PCB) 250.
Reflectance coating 253 is formed at the peripheral region of the secondary light source unit 410 on the printed circuit board (PCB) 250.For example, can adopt silk to be coated with method (silk coating) and form reflectance coating 253.And, can make reflectance coating 253 by the material that comprises silver (Ag) cream.Because reflectance coating 253 is white or silver color, reflectance coating 253 is reflective.When the light that secondary light source unit 410 is sent provided to daughter board unit 220 by optical guide unit 420, reflectance coating 253 can prevent the loss of contingent light.Specifically, reflectance coating 253 can prevent that the light that sends from secondary light source 410 from arriving the loss that light may take place before in the position that forms reflecting plate 440.
Therefore, according to embodiments of the invention, because printed circuit board (PCB) 250 is directly installed or be attached in the secondary light source unit 410 in the display device 10, so can simplified assembling process.Therefore, reflectance coating 253 is formed at and prevents on the printed circuit board (PCB) 250 that the light that sends from secondary light source unit 410 from arriving the loss that light takes place reflecting plate 440 before in light path.For example, by optical guide unit 420 guiding, can improve or increase big brightness until light with the maximization optical efficiency.
As shown in Figure 2, optical guide unit 420 comprises: photoconduction part 421, it has light receiving surface relative with secondary light source unit 410 and the light emitting surface (see figure 1) relative with daughter board unit 220, and described photoconduction part 421 will guide to daughter board unit 220 from the light that secondary light source unit 410 sends; Sidewall sections 422 to daughter board unit 220 whole extensions, and has formed the spatial accommodation that holds second optics thin layer group 430 (see figure 1)s and daughter board unit 220 along the edge of photoconduction part 421; And the fixed part 423 that is used for fixing photoconduction part 421.According to non-limiting example of the present invention, fixed part 423 is a square column type, and its insertion is led in the conjugate foramen 251 of printed circuit board (PCB) 250.For example, optical guide unit 420 can be made of the material that comprises polymethylmethacrylate (PMMA) or polycarbonate (PC), and described material is because its high strength and not flexible type or fracture of high light transmittance.
Optical guide unit 421 comprises: one or morely be used to prevent light leak, the groove 425 that forms along the edge of light emitting surface; With the reception groove 424 that in light receiving surface, forms so that receive at least a portion of secondary light source unit 410.Method by photoconduction part 421 is punched or pushed prevents that the groove 425 of light leak can be formed at along the direction perpendicular to light emitting surface 426 in the photoconduction part 421.
As shown in Figure 3, groove 425 prevents light leak, specifically, prevent to provide to the light of photoconduction part 421 and from the side leakage of photoconduction part 421, light as much as possible is penetrated from light emitting surface 426 according to snell law (Snell ' s Law) by secondary light source unit 410.For example, snell law points out, during from the less medium of the medium directive refractive index with big refractive index, all light can obtain reflection, can not produce refract light at light.That is to say, form when preventing the groove 425 of light leak in marginal portion along the light emitting surface 426 of photoconduction part 421, the light that penetrates to the side of photoconduction part 421 contacts with the air in the groove 425 that prevents light leak, the refractive index of air is less than the refractive index of photoconduction part 421, described light is not to external leaks, for example, these light are reflected onto photoconduction part 421 basically fully.Therefore, should be understood that reflection loss is corresponding to refractive index.
Photoconduction part 421 has the predetermined pattern on a part of apparent surface who is formed at light emitting surface 426, and it 410 separates by preset distance from the secondary light source unit.That is to say that described pattern is not formed on a part of apparent surface of light emitting surface 426 near secondary light source unit 410.Set the apparent surface's of the light emitting surface 426 that does not form pattern on it the length of part, make the light that enters light receiving surface in photoconduction part 421, obtain scattering equably according to snell law.
Discussed above and optical guide unit according to an embodiment of the invention 420 as shown in Figure 1 can guide to the light that sends from secondary light source unit 410 daughter board unit 220, and can hold and support the daughter board unit 220 and the second optics thin layer group 430, and can fix or be attached to printed circuit board (PCB) 250.In addition, in optical guide unit 420, form the groove 425 prevent light leak, and groove 425 can prevent the loss of light, improve intensity level thus.
As shown in Figure 4, can be along the edge placement or the formation optical screen film 428 of the second optics thin layer group 430 and photoconduction part 421, described second optics thin layer group 430 and photoconduction part 421 are received or are arranged in the spatial accommodation that is formed by sidewall sections 422, and reflectance coating 429 can be provided in the one or more side surfaces in the side of optical guide unit 420, except the light emitting surface 426 of photoconduction part 421.For example, the reflectance coating pattern can be printed, rather than uses reflectance coating.
Optical screen film 428 and reflectance coating 429 can prevent that light from leaking around optical guide unit 420, thereby reduce the loss of light.Optical screen film 428 can be made by the material that comprises pressure sensitive adhesives (PSA), prevents the loosening of the second optics thin layer group 430 held in the spatial accommodation of optical guide unit 420 thus.
The second optics thin layer group 430 can have the first optics thin layer group, the 330 essentially identical structures with above-mentioned first backlight assembly 300.Can be on printed circuit board (PCB) 250 direct cremasteric reflex plate 440, this reflecting surface thin layer 340 with first backlight assembly 300 is different, reflecting plate 440 has and reflecting surface thin layer 340 essentially identical operational advantages.
Below with reference to Fig. 5 another embodiment of the present invention is illustrated.
As shown in Figure 5, in indefiniteness embodiment of the present invention, display device 10 comprises: the optical guide unit 420 with hook fixed part 423; And have the shaping frame 550 that is used for the fastening groove 555 of fixed part 423 coupling.The fixed part 423 of optical guide unit 420 comprises: the 422 outshot 423a that extend along the direction that is parallel to optical guide unit 420 from sidewall sections; With from the hook portion 423b of outshot 423a to shaping frame 550 bendings.
Printed circuit board (PCB) 250 and underframe 520 zones are provided between shaping frame 550 and optical guide unit 420, both all have the perforation groove 251 and 521 of formation, make the fixed part 423 of optical guide unit 420 can fix or be attached to the fastening groove 555 of shaping frame 550 respectively.By with shaping frame 550 and optical guide unit 420 couplings, be arranged at therebetween underframe 520 and printed circuit board (PCB) 250 and shaping frame 550 and optical guide unit 420 couplings.Similar with first embodiment, reflecting plate 440 can be installed on the printed circuit board (PCB) 250 that at least a portion and optical guide unit 420 be coupled, and forms reflectance coating 253 and come around secondary light source 410.
Therefore, shaping frame 550 can be fixed or be attached to optical guide unit 420, and described optical guide unit 420 will guide to daughter board unit 220 from the light that secondary light source unit 410 sends, and hold and support the daughter board unit 220 and the second optics thin layer group 430.In addition, shaping frame 550, underframe 520, printed circuit board (PCB) 250 and optical guide unit 420 can be able to be coupled.
Although only at the application in second backlight assembly structure of described optical guide unit has been provided explanation and diagram, its purpose is the structure and layout according to display device of the present invention are illustrated, and the present invention is not limited only to these embodiment.Therefore, can be applied to first backlight assembly according to the structure of optical guide unit of the present invention, and can adopt various ways that the structure and layout of described display device are made amendment.
As mentioned above, in display device according to the present invention, with light when light source cell guides to display board, display board and optics thin layer group can be stable and be supported fully.In addition, display board and optics thin layer group can be coupled easily with printed circuit board (PCB) and shaping frame.In addition, prevent that the groove of light leak from can reduce the loss of light, thereby highlight.
In addition,, before arriving reflecting plate, lose, maximize optical efficiency thus so can prevent the light that light source cell sends because reflectance coating can be formed at or directly be formed on the printed circuit board (PCB) around light source cell.
In the technician, under the situation that does not deviate from the spirit and scope of the present invention, can make various modifications and variations for ability to the present invention.Therefore, the present invention is intended to cover various modifications and variations of the present invention, if these modifications and variations drop on appended claim and are equal in the scope of important document.

Claims (17)

1. display device, it comprises:
Display board, display image;
Light source cell is for described display board provides light; And
Optical guide unit comprises the photoconduction part, and described light guide portion branch comprises:
Light receiving surface is arranged at contiguous described light source cell;
Light emitting surface, relative with described display board, and will guide to described display board from the light that described light source cell sends;
Sidewall sections defines the space that holds described display board; And
Fixed part partly is fixed in described display device with described photoconduction.
2. display device as claimed in claim 1, wherein, described optical guide unit also comprises:
Prevent the groove of light leak, along at least one marginal portion formation of light emitting surface.
3. display device as claimed in claim 1, wherein, described optical guide unit also comprises:
What provide in described light receiving surface holds groove, and it is used to hold at least a portion light source cell.
4. display device as claimed in claim 1 wherein, forms a pattern on described light emitting surface.
5. display device as claimed in claim 1 also comprises:
Optics thin layer group is contained in the space that is formed by described sidewall sections,
Wherein, the marginal portion along described optical guide unit and optics thin layer group provides optical screen film.
6. display device as claimed in claim 1, wherein, along cremasteric reflex film on the side in the side of described optical guide unit, except the light emitting surface of described photoconduction part.
7. display device as claimed in claim 1 also comprises:
Printed circuit board (PCB) transfers to described display board with drive signal.
8. display device as claimed in claim 7, wherein, described printed circuit board (PCB) comprises:
Fastening groove,
Wherein, the fixed part of fastening described optical guide unit.
9. display device as claimed in claim 8 also comprises:
Reflecting plate is provided on the described optical guide unit.
10. display device as claimed in claim 7 wherein, directly provides described light source cell on described printed circuit board (PCB).
11. display device as claimed in claim 10 also comprises:
Reflectance coating around described light source cell.
12. display device as claimed in claim 11, wherein, described reflectance coating applies by silk screen and forms.
13. display device as claimed in claim 11, wherein, described reflectance coating comprises silver paste.
14. display device as claimed in claim 1 also comprises:
Shaping frame with described optical guide unit coupling, has the fastening groove that is formed at wherein,
Wherein, the fixed part of described optical guide unit and described fastening groove are fastening.
15. display device as claimed in claim 14, wherein, described fixed part comprises:
By the part of sidewall sections along the direction extension that is in substantially parallel relationship to described photoconduction part.
From described outshot another part to described shaping frame bending.
16. display device as claimed in claim 14 also comprises:
Printed circuit board (PCB) provides between described optical guide unit and mold frame, and is coupled with described optical guide unit and shaping frame; And
Reflecting plate, with at least a portion printed circuit board (PCB) of described optical guide unit coupling on provide.
17. display device as claimed in claim 1, wherein, described light source cell comprises light emitting diode.
CNA2005100820707A 2005-04-01 2005-07-01 Display device Pending CN1841445A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR27525/05 2005-04-01
KR1020050027525A KR100929683B1 (en) 2005-04-01 2005-04-01 Display device
KR27524/05 2005-04-01

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CN1841445A true CN1841445A (en) 2006-10-04

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KR (1) KR100929683B1 (en)
CN (1) CN1841445A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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JP2001249354A (en) * 2000-03-06 2001-09-14 Hirose Electric Co Ltd Electric connector
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CN104108213A (en) * 2013-04-22 2014-10-22 三星显示有限公司 Window For Display Device And Display Device Including The Window
CN107481619A (en) * 2017-09-29 2017-12-15 武汉天马微电子有限公司 Display module and display device
CN107481619B (en) * 2017-09-29 2019-09-24 武汉天马微电子有限公司 Display module and display device

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