WO2010016571A1 - 面光源装置 - Google Patents
面光源装置 Download PDFInfo
- Publication number
- WO2010016571A1 WO2010016571A1 PCT/JP2009/064018 JP2009064018W WO2010016571A1 WO 2010016571 A1 WO2010016571 A1 WO 2010016571A1 JP 2009064018 W JP2009064018 W JP 2009064018W WO 2010016571 A1 WO2010016571 A1 WO 2010016571A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light source
- source device
- diffusion plate
- shielding member
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
Definitions
- the present invention relates to a surface light source device used as a backlight device of a liquid crystal display device.
- the surface light source device includes a surface light-emitting unit in which a diffusion plate and a prism sheet are stacked on a light guide plate, and a light source disposed to face an end surface of the light guide plate.
- a cross-sectional reduced portion having a thickness that decreases as it moves away from the incident end face is provided at the end of the light guide plate adjacent to the light source, and the light incident from the end face is narrowed and propagated to the surface emitting region.
- Japanese Patent Application Laid-Open No. H11-228707 proposes a method for making them.
- Patent Document 1 there is an advantage that the thickness of the surface light emitting region in the surface light source device can be reduced to make the liquid crystal display device thinner.
- the incident angle with respect to the inclined surface becomes small for a part of the light emitted from the light source.
- part of the light leaks from the inclined surface.
- the leaked light is incident on the end face of the prism sheet or between the prism sheets, and uneven brightness occurs in the liquid crystal panel (particularly, the edge near the light source).
- an object of the present invention is to solve the above problems and provide a new technique for blocking light incident on a prism sheet.
- a surface light source device (10) includes a diffusion plate (26) and a prism sheet (27) laminated on a light guide plate (11), and an end surface (14) of the light guide plate.
- the light emitted from the light source (23) arranged opposite to the light guide is introduced into the inside from the end surface (14) of the light guide plate (11), and the light diffused inside the light guide plate (11) is A surface light source device (10) that obtains surface emission (35) by emitting from the diffusion plate (26) and the prism sheet (27) through a front surface (13) facing the diffusion plate (26),
- the light guide plate (11) includes a light guide section (16) including an end face (14) facing the light source (23), a light emitting section (21) facing the diffusion plate (26), and the light guide section.
- the front surface of the connecting portion (19) has an inclined surface (20) that gradually recedes from the light guide portion (16) toward the light emitting portion (21) toward the back surface (12) on the opposite side, Front surfaces of the light guide (16) and the connecting part (19) are covered with a light shielding member (32),
- the light shielding member (32) is fixed to the diffuser plate (26) without the prism sheet (27) interposed therebetween, and between the light shielding member (32) and the inclined surface (20). Is characterized by allowing air to intervene.
- the surface light source device (10) of the present invention thus configured, the light (36) leaking from the inclined surface (20) is blocked by the light shielding member (32). And since the edge part of the light-shielding member (32) is being fixed to the diffusion plate (26), the leaked light (36) is not transmitted to a prism sheet (27). Therefore, luminance unevenness does not occur at the end of the light emitting section (21), and the uniformity of the surface light emission (35) is maintained.
- FIG. 1 It is a partial expanded sectional view of the surface light source device which concerns on Example 1 of this invention. It is a top view which shows a part of light-shielding sheet and diffusion plate of the surface light source device shown in FIG. It is a partial expanded sectional view which shows the modification of the surface light source device which concerns on Example 1.
- FIG. 2 It is a figure for demonstrating the dimensional relationship of each part of a surface light source device. It is a partial expanded sectional view of the surface light source device which concerns on Example 2 of this invention. It is a top view which shows a part of light-shielding sheet and diffusion plate of the surface light source device shown in FIG. It is a fragmentary perspective view of the surface light source device which concerns on Example 3 of this invention. It is a top view which shows a part of light-shielding sheet and diffusion plate of the surface light source device shown in FIG.
- FIG. 1 shows a part of a surface light source device 10 according to the present invention.
- the illustrated surface light source device 10 includes a light guide plate 11.
- the light guide plate 11 has a rectangular or square quadrangle when viewed from the front (upper side in the figure), and includes a rear surface 12 positioned on the lower side of the figure, a front surface 13 positioned on the upper side of the figure, and the rear surface 12 and the front surface 13.
- An outer shape is formed by the four end faces to be connected.
- the light guide plate 11 has a large thickness (width in the vertical direction) in the vicinity of one end face 14 thereof. More specifically, the back surface 12 of the light guide plate 11 is formed by a single flat surface.
- the front surface 13 of the light guide plate 11 is formed by a flat surface (circuit board support surface) 17 in a region 16 up to a first position (inclined start end portion) 15 that is separated from the end surface 14 by a predetermined distance.
- a region 19 from a first position 15 to a second position (tilted end portion) 18 that is a predetermined distance away from the first position 15 to the right side (opposite to the end face 14) is directed from the first position 15 toward the second position 18.
- the light guide plate 11 is formed with an inclined surface (inclined surface) 20 so that the thickness of the light guide plate 11 is gradually reduced, and a region 21 on the right side from the second position 18 is again formed with a flat surface (film support surface) 22.
- the inclined surface may be two-dimensional as shown in FIG. 1 or three-dimensional as shown in FIG. Further, a V-groove (see FIG. 7) or an uneven shape may be provided on the inclined surface to make it difficult for light to leak from the inclined surface.
- a region 16 including a flat surface adjacent to the end surface 14 in the light guide plate 11 is a light guide portion
- a region 21 including a flat surface away from the end surface 14 is a light emitting portion
- the light guide portion 16 and the light emitting portion emit light.
- the inclined region 19 between the portions 21 is referred to as a connecting portion (or a throttle portion).
- the light source 23 is disposed to face the end face 14.
- a light emitting diode is used for the light source 23, and a plurality of light emitting diodes are arranged at predetermined intervals in the front and back direction of the drawing (Z direction orthogonal to the X and Y directions shown in the figure).
- the circuit board 24 that electrically connects the light source 23 and a power source (not shown) is preferably fixed to the circuit board support surface 17 of the light guide 16.
- the end face 14 of the light guide plate 11 and the light source 23 must be optically connected so that light emitted from the light source 23 is efficiently incident on the inside of the light guide plate. Therefore, the thickness of the light guide portion 16 (the height of the end surface 14 in the Y direction) is required to some extent.
- the reflection member 25 may be formed of a single reflection sheet, or may be formed by applying a reflective material to the back surface 12 of the light guide plate 11. By doing in this way, the incident light can be efficiently emitted from the front surface 13.
- a plurality of optical sheets are arranged on the film support surface 22 forming the light emitting unit 21.
- one diffusion plate 26 and one or two prism sheets 27 and 28 are disposed on the light guide plate 11.
- the left end (end 29 adjacent to the inclined surface 20) of the diffusion plate 26 is disposed in the vicinity of the inclined terminal end 18.
- the left ends of the prism sheets 27 and 28 are shifted to the right side of the diffusion plate end portion 29, and the front surface portion in the vicinity of the end portion of the diffusion plate 26 is exposed to block light.
- a sheet sticking portion (light shielding member fixing portion) 31 is formed.
- a light shielding sheet 32 is disposed on the inclined surface 20.
- the light shielding sheet 32 prevents light leaking from the inclined surface 20 from entering the interior of the prism sheets 27 and 28 from between the end surfaces of the prism sheets 27 and 28, and the light guide plate 11 along the end surface 14.
- One end side (left side) is fixed to the light guide unit 16 via the circuit board 24 and the other end side is shielded from the diffusion plate 26 by being continuously arranged at the end in the Z direction and covering the entire inclined surface 20. It is fixed to the member fixing part 31.
- an adhesive layer (not shown) is formed on the back surface of the light shielding sheet 32.
- the portion (inclined surface covering portion) that covers the inclined surface 20 of the light shielding sheet 32 prevents the light shielding sheet 32 and the inclined surface 20 from coming into close contact with each other so that an air layer 33 is formed between them.
- 34 is formed (see FIG. 2).
- the non-adhesive layer 34 is preferably formed by printing a non-adhesive material on the adhesive layer. This printing technique is disclosed in, for example, Japanese Patent Application Laid-Open No. 2006-69045.
- a non-adhesive layer may be formed by attaching a non-adhesive film to the back surface of the light shielding sheet 32.
- the light-shielding sheet 32 is preferably a color (for example, black) having excellent light absorption for the purpose.
- the non-adhesive layer 34 is also preferably black, but may be formed in a color other than black so that the non-adhesive layer can be confirmed.
- the surface light source device 10 most of the light incident on the light guide plate 11 from the light source 23 is reflected on the back surface 12 and the front surface 13 of the light guide plate 11, while the light guide unit 16 and the connection unit 19 are connected.
- the light passes through and propagates to the light emitting unit 21 and is emitted from the light emitting unit 21.
- the light emitted from the light emitting unit 21 is diffused by the diffusion plate 26 and condensed forward by the prism sheets 27 and 28 to form a uniform surface light emission 35 on the light emitting unit 21.
- the light guide plate 11 As described above, most of the light incident on the light guide plate 11 forms the surface emission 35, but a part of the light incident on the inclined surface 20 passes through the inclined surface 20 and leaks to the outside. However, the light 36 leaking from the inclined surface 20 is captured by the light shielding sheet 32. Further, since the right end portion of the light shielding sheet 32 is fixed to the diffusion plate 26, the leaked light 36 is not transmitted to the prism sheets 27 and 28. Therefore, luminance unevenness does not occur at the end of the light emitting unit 21, and the uniformity of the surface light emission 35 is maintained.
- FIG. 3 shows a surface light source device 10B according to a modification of the first embodiment.
- a light-shielding spacer 41 is interposed between the end 40 of the light-shielding sheet 32 and the light-shielding sheet fixing part 31 of the diffusion plate 26 facing the end 40.
- the spacer 41 for example, there is “Thin Clean Foam SCF400” manufactured by Nitto Denko Corporation.
- the light shielding spacer 41 is preferably fixed to the light shielding sheet 32 and the diffusion plate 26 continuously or partially, for example, with a double-sided tape (not shown).
- the light shielding spacer 41 is shielded as shown in the drawing. It is preferable that the front surface of the spacer 41 and the front surface of the prism sheet 28 be flush or almost flush, that is, the front surfaces of both are positioned on one flat surface. Therefore, the light shielding spacer 41 is preferably formed of a foamed resin having flexibility and compression performance in addition to the light shielding property.
- the surface light emitting device 10B configured as described above, it is possible to reliably prevent the light 36 leaking from the inclined surface 20 from entering the prism sheets 27 and 28. Further, since the light shielding sheet 32 is pressed against the light shielding spacer 41 by the liquid crystal panel 42 (particularly, the polarizing plate 44) in combination with the liquid crystal panel 42, the light shielding spacer 41 does not float from the diffusion plate 26, and The diffusion plate 26 does not float from the front surface 13 of the light guide plate 11.
- Table 2 shows an example of the dimensions of the configuration arranged at the end of the surface light source device and the reason why the dimensions are limited (see FIG. 4).
- the fixed width G of the light shielding sheet 32 is 1.1 mm.
- the substantial value H of the fixed width G is 0.7 mm ⁇ 0.4 mm. Therefore, various devices are made in Example 2 described below.
- the end portion 47 of the second prism sheet 28 is disposed on the light shielding sheet end portion 46 disposed on the light shielding sheet fixing portion 31. Is arranged. Further, another light shielding sheet 48 is disposed on the end 47 of the second prism sheet 28. And as shown in FIG. 6, the non-adhesion layer 49 is formed in the part facing the light shielding sheet fixing
- the upper light-shielding sheet 48 has adhesive layers formed on both surfaces thereof, and is bonded and fixed to the upper prism sheet 28 and the liquid crystal panel 42 disposed on the light-shielding sheet 32.
- the lower-layer light-shielding sheet 32 is not attached to the diffusion plate 26, but the liquid crystal is interposed via the prism sheet 28 and the upper-layer light-shielding sheet 48. It is pressed by the panel 42 and sandwiched between the diffusion plate 26 and the upper prism sheet 28 and securely fixed. Therefore, even when the end dead space is small, the light shielding sheet is securely fixed to the diffusion plate, and light leakage can be prevented.
- the lower-layer light-shielding sheet 32 and the lower-layer prism sheet 27 have substantially the same thickness, and the upper-layer prism sheet 28 can securely fix the end portion of the light-shielding sheet 32. preferable.
- a light guide plate (see Nikkei Electronics, June 30, 2008) in which a fan-shaped three-dimensional lens is formed on the inclined surface can also be used.
- this light guide plate with a three-dimensional lens conical fan surfaces are formed in an inclined surface area, and a number of radial grooves (radial prism structures) are formed on each fan surface.
- a protruding portion 51 positioned between adjacent radial prism structures 50 is formed at the end of the diffusion plate 26.
- the adhesive portion 53 is formed only in the region corresponding to the protruding portion 51 at the corresponding end portion of the light shielding sheet 32, and the adhesive portion 53 of the light shielding sheet 32 is attached to the protruding portion 51 and fixed. Good. In this case, in order to prevent the entire end portion of the diffusion plate 26 from being lifted by the light shielding sheet 32, it is preferable to form cuts 52 on both sides of the protruding portion 51.
- the light source 23 may be a tubular light source.
- the light source 23 is continuously arranged along the end face 14 in the Z direction of FIG.
- the present invention also covers a liquid crystal display device in which a liquid crystal panel is disposed on the surface light source device described above.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
上記導光板(11)は、上記光源(23)に対向する端面(14)を含む導光部(16)と、上記拡散板(26)に対向する発光部(21)と、上記導光部(26)と上記発光部(21)を連結する連結部(19)を有し、
上記連結部(19)における前面は、上記導光部(16)から上記発光部(21)に向かって、反対側の背面(12)に向かって次第後退する傾斜面(20)を有し、
上記導光部(16)と上記連結部(19)の前面は遮光部材(32)によって覆われており、
上記遮光部材(32)は、上記プリズムシート(27)を介することなく、上記拡散板(26)に対して固定されており、上記遮光部材(32)と上記傾斜面(20)との間には空気が介在できるようにしてあることを特徴とする。
11:導光板
12:背面
13:前面
14:端面
15:第1の位置(傾斜始端部)
16:領域(導光部)
17:面(回路基板支持面)
18:第2の位置(傾斜終端部)
19:領域(連結部、絞り部)
20:傾斜面
21:領域(発光部)
22:面(フィルム支持面)
23:光源
24:回路基板
25:反射部材
26:拡散板
27,28:プリズムシート
29:拡散板端部
30:プリズムシート端部
31:遮光シート固定部(遮光部材固定部)
32:遮光シート(遮光部材)
33:空気層
34:非粘着層(接着防止層)
35:面発光
40:遮光シート端部
41:スペーサ
42:液晶パネル
46:遮光シート端部
50:ラジアルプリズム構造
51:突出部
52:切り込み
53:粘着部
Claims (15)
- 導光板の上に拡散板とプリズムシートを積層し、上記導光板の端面に対向して配置された光源から出射された光を、上記導光板の端面から内部に導き入れ、上記導光板の内部で拡散された光を上記拡散板に対向する前面を介して上記拡散板と上記プリズムシートから出射することにより面発光を得る面光源装置であって、
上記導光板は、上記光源に対向する端面を含む導光部と、上記拡散板に対向する発光部と、上記導光部と上記発光部を連結する連結部を有し、
上記連結部における前面は、上記導光部から上記発光部に向かって、反対側の背面に向かって次第後退する傾斜面を有し、
上記導光部と上記連結部の前面は遮光部材によって覆われており、
上記遮光部材は、上記プリズムシートを介することなく、上記拡散板に対して固定されており、上記遮光部材と上記傾斜面との間には空気が介在できるようにしてあることを特徴とする面光源装置。 - 上記遮光部材の上記傾斜面に対向する部分には接着防止層が形成されていることを特徴とする請求項1の面光源装置。
- 上記プリズムシートの上記光源側の縁を上記拡散板の上記光源側の縁よりも上記光源とは反対側にずらすことにより上記拡散板に遮光部材固定部を形成し、
上記遮光部材固定部に上記遮光部材を固定したことを特徴とする請求項1の面光源装置。 - 上記拡散板に固定された上記遮光部材の前面と上記プリズムシートの前面はほぼ面一に配置されていることを特徴とする請求項1の面光源装置。
- 上記遮光部材と上記プリズムシートは、上記拡散板上で重なることなく配置されていることを特徴とする請求項1の面光源装置。
- 上記プリズムシートの上に配置された第2のプリズムシートを有し、
上記第2のプリズムシートは上記拡散板に固定された上記遮光部材の上に配置されていることを特徴とする請求項1の面光源装置。 - 上記遮光部材はスペーサを介して上記拡散板に固定されていることを特徴とする請求項1の面光源装置。
- 上記遮光スペーサが弾性材料で形成されていることを特徴とする請求項7の面光源装置。
- 上記遮光部材は、上記導光板に対向する部分がすべて接着されていることを特徴とする請求項1の面光源装置。
- 上記遮光部材は、上記導光板に対向する部分が部分的に接着されていることを特徴とする請求項1の面光源装置。
- 上記拡散板は上記遮光部材に向かって突出する複数の突出部を有し、各突出部が上記遮光部材に接着されていることを特徴とする請求項10の面光源装置。
- 上記導光板の連結部は、前面側からみて扇形の傾斜面を有し、隣接する上記突出部の間に上記扇状の傾斜面が配置されていることを特徴とする請求項11の面光源装置。
- 上記拡散板は、各突出部の両側に切り込みが形成されていることを特徴とする請求項11の面光源装置。
- 上記拡散板は、各突出部の両側に切り込みが形成されていることを特徴とする請求項12の面光源装置。
- 請求項1~14のいずれかの面光源装置を備えた液晶表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020117000984A KR101286319B1 (ko) | 2008-08-07 | 2009-08-07 | 면광원 장치 |
CN200980128695.9A CN102105737B (zh) | 2008-08-07 | 2009-08-07 | 面光源装置 |
US13/057,300 US8814412B2 (en) | 2008-08-07 | 2009-08-07 | Area light source device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-204525 | 2008-08-07 | ||
JP2008204525A JP5083111B2 (ja) | 2008-08-07 | 2008-08-07 | 面光源装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010016571A1 true WO2010016571A1 (ja) | 2010-02-11 |
Family
ID=41663784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/064018 WO2010016571A1 (ja) | 2008-08-07 | 2009-08-07 | 面光源装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8814412B2 (ja) |
JP (1) | JP5083111B2 (ja) |
KR (1) | KR101286319B1 (ja) |
CN (1) | CN102105737B (ja) |
TW (1) | TWI393955B (ja) |
WO (1) | WO2010016571A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102182969A (zh) * | 2011-05-16 | 2011-09-14 | 康佳集团股份有限公司 | 一种侧入式led光源背光模组 |
US20140111743A1 (en) * | 2012-10-18 | 2014-04-24 | Omron Corporation | Surface light source device, liquid crystal display device, and mobile device |
JP2014096312A (ja) * | 2012-11-12 | 2014-05-22 | Citizen Holdings Co Ltd | 面状ライトユニット |
CN107448909A (zh) * | 2016-05-31 | 2017-12-08 | 瑞仪光电(苏州)有限公司 | 背光模块 |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012014909A (ja) * | 2010-06-30 | 2012-01-19 | Omron Corp | 面光源装置 |
KR20120086112A (ko) * | 2011-01-25 | 2012-08-02 | 삼성디스플레이 주식회사 | 백라이트 유닛 및 이를 포함하는 액정 표시 장치 |
KR20120092322A (ko) * | 2011-02-11 | 2012-08-21 | 엘지이노텍 주식회사 | 표시장치 |
TWI448784B (zh) * | 2011-06-29 | 2014-08-11 | Top Victory Invest Ltd | Backlight module |
JP5663434B2 (ja) * | 2011-08-15 | 2015-02-04 | 株式会社ジャパンディスプレイ | 表示装置 |
CN202196197U (zh) * | 2011-09-16 | 2012-04-18 | 北京京东方光电科技有限公司 | 异型导光板、背光模组及液晶显示装置 |
KR101322944B1 (ko) * | 2011-12-21 | 2013-10-29 | 엘지디스플레이 주식회사 | 액정표시 장치 |
JP5893913B2 (ja) * | 2011-12-22 | 2016-03-23 | ミネベア株式会社 | 面状照明装置 |
US8931943B2 (en) | 2011-12-22 | 2015-01-13 | Minebea Co., Ltd. | Spread illuminating apparatus |
TWI461799B (zh) * | 2011-12-23 | 2014-11-21 | Wistron Corp | 具有可撓式顯示面板的電子裝置及背光模組 |
TWI465804B (zh) | 2012-02-29 | 2014-12-21 | Young Lighting Technology Inc | 顯示模組 |
CN102830460B (zh) * | 2012-08-06 | 2017-02-15 | 北京京东方光电科技有限公司 | 棱镜膜、背光模组及显示装置 |
US9052431B2 (en) * | 2012-09-04 | 2015-06-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid display devices with the same |
US9052426B2 (en) | 2012-10-01 | 2015-06-09 | Htc Corporation | Display module and handheld electronic device |
KR101422392B1 (ko) * | 2012-11-05 | 2014-07-22 | 오므론 가부시키가이샤 | 도광판의 제조 방법, 금형 구조, 전사 성형 장치, 도광판, 면광원 장치, 액정 표시 장치 및 모바일 기기 |
US20140177268A1 (en) * | 2012-12-20 | 2014-06-26 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Optical Film Layer, Backlight Module, and Display Device |
JP5915556B2 (ja) * | 2013-01-30 | 2016-05-11 | オムロン株式会社 | 導光板 |
EP2765451B1 (en) * | 2013-02-08 | 2019-05-01 | Samsung Electronics Co., Ltd | Backlit display apparatus having a diffusing plate fixed by a fixing member |
CN104035154A (zh) * | 2013-03-07 | 2014-09-10 | 富昱科技开发股份有限公司 | 导光板构造 |
JP6125626B2 (ja) * | 2013-05-24 | 2017-05-10 | シャープ株式会社 | 照明装置及び表示装置 |
US20140347571A1 (en) * | 2013-05-24 | 2014-11-27 | Raytheon Company | Low profile backlight apparatus for high-brightness microdisplays |
TWI499845B (zh) * | 2013-08-20 | 2015-09-11 | Au Optronics Corp | 薄型顯示模組 |
JP6180312B2 (ja) * | 2013-12-17 | 2017-08-16 | シチズン時計株式会社 | Ledバックライト |
CN103728776B (zh) * | 2013-12-31 | 2016-02-24 | 京东方科技集团股份有限公司 | 一种背光模组及显示装置 |
JP5696799B2 (ja) * | 2014-02-21 | 2015-04-08 | オムロン株式会社 | 面光源装置、液晶表示装置及びモバイル機器 |
TWI556698B (zh) * | 2014-08-12 | 2016-11-01 | 旭德科技股份有限公司 | 基板結構及其製作方法 |
US9851488B2 (en) * | 2014-08-18 | 2017-12-26 | New Optics, Ltd | Light guide plate and backlight unit including the same |
JP6373151B2 (ja) * | 2014-10-03 | 2018-08-15 | 三菱電機株式会社 | バックライト及び表示装置 |
TWI580893B (zh) * | 2014-11-12 | 2017-05-01 | 元太科技工業股份有限公司 | 發光模組及顯示設備 |
CN104501051B (zh) * | 2015-01-16 | 2017-05-17 | 北京京东方茶谷电子有限公司 | 背光源和显示装置 |
CN104832841A (zh) * | 2015-05-19 | 2015-08-12 | 武汉华星光电技术有限公司 | 背光单元及具有该背光单元的显示装置 |
CN104808283B (zh) * | 2015-05-20 | 2017-11-03 | 武汉华星光电技术有限公司 | 导光板及背光模组 |
CN205229629U (zh) * | 2015-12-10 | 2016-05-11 | 乐视致新电子科技(天津)有限公司 | 一种背光模组、显示模组及显示设备 |
JP2017157467A (ja) * | 2016-03-03 | 2017-09-07 | オムロン株式会社 | 面光源装置、表示装置、及び電子機器 |
US10215904B2 (en) * | 2016-05-31 | 2019-02-26 | Radiant Opto-Electronics (Suzhou) Co., Ltd. | Backlight module and display device |
CN107178713B (zh) * | 2017-05-12 | 2018-11-09 | 武汉华星光电技术有限公司 | 一种背光模组及显示装置 |
US10514514B2 (en) * | 2017-05-12 | 2019-12-24 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
CN108254973A (zh) * | 2018-01-31 | 2018-07-06 | 广东欧珀移动通信有限公司 | 电子装置及其显示组件、背光模组 |
CN108019668B (zh) * | 2018-01-31 | 2021-04-27 | Oppo广东移动通信有限公司 | 一种背光模组及电子装置 |
CN108663858B (zh) * | 2018-03-30 | 2021-02-23 | 京东方科技集团股份有限公司 | 背光模组、显示装置及其驱动方法 |
CN109283746B (zh) * | 2018-11-30 | 2021-07-30 | 上海天马微电子有限公司 | 背光模组及显示装置 |
CN110967867A (zh) * | 2019-11-20 | 2020-04-07 | 厦门天马微电子有限公司 | 背光模组和显示装置 |
CN114460776A (zh) * | 2020-11-10 | 2022-05-10 | 京东方科技集团股份有限公司 | 显示装置及背光模组 |
CN214122624U (zh) * | 2020-11-26 | 2021-09-03 | 北京京东方光电科技有限公司 | 背光模组和显示装置 |
CN112987407A (zh) * | 2021-03-31 | 2021-06-18 | 维沃移动通信有限公司 | 背光模组及电子设备 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002109926A (ja) * | 2000-09-29 | 2002-04-12 | Seiko Epson Corp | 照明装置及び液晶装置 |
JP2004265797A (ja) * | 2003-03-03 | 2004-09-24 | Citizen Electronics Co Ltd | 内部拡散手段を有する面光源 |
JP2006236641A (ja) * | 2005-02-23 | 2006-09-07 | Seiko Epson Corp | 照明装置、電気光学装置、および電子機器 |
JP2007141596A (ja) * | 2005-11-17 | 2007-06-07 | Epson Imaging Devices Corp | 照明装置、電気光学装置及び電子機器 |
JP2007256697A (ja) * | 2006-03-24 | 2007-10-04 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示装置 |
JP2008053009A (ja) * | 2006-08-23 | 2008-03-06 | Nidec Copal Corp | 導光板及び面発光装置 |
JP2009081014A (ja) * | 2007-09-26 | 2009-04-16 | Epson Imaging Devices Corp | 照明装置、電気光学装置及び電子機器 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06317797A (ja) | 1993-05-07 | 1994-11-15 | Mitsubishi Petrochem Co Ltd | 面光源装置 |
JP3437029B2 (ja) | 1996-03-15 | 2003-08-18 | 株式会社エンプラス | サイドライト型面光源装置 |
JP3415394B2 (ja) * | 1997-07-08 | 2003-06-09 | シャープ株式会社 | バックライト装置 |
KR100294689B1 (ko) * | 1999-04-30 | 2001-07-12 | 구본준, 론 위라하디락사 | 액정표시장치 및 그 백라이트 |
JP4257915B2 (ja) | 2004-09-02 | 2009-04-30 | 本多通信工業株式会社 | 絶縁性薄膜体の製造方法 |
US7710511B2 (en) * | 2004-10-15 | 2010-05-04 | 3M Innovative Properties Company | Liquid crystal displays with laminated diffuser plates |
JP2006154320A (ja) * | 2004-11-30 | 2006-06-15 | Citizen Watch Co Ltd | 表示装置及び照明装置 |
US20070103910A1 (en) * | 2005-11-08 | 2007-05-10 | Eastman Kodak Company | Light redirecting films having multiple layers and an adhesion layer |
KR20080013127A (ko) * | 2006-08-07 | 2008-02-13 | 삼성전자주식회사 | 백라이트 유닛 및 이를 포함한 액정표시장치 |
JP5142499B2 (ja) | 2006-08-18 | 2013-02-13 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
JP2008175926A (ja) * | 2007-01-17 | 2008-07-31 | Hitachi Displays Ltd | 液晶表示モジュール |
TW200905311A (en) * | 2007-07-31 | 2009-02-01 | Chi Mei Lighting Tech Corp | Backlight module and application thereof |
-
2008
- 2008-08-07 JP JP2008204525A patent/JP5083111B2/ja not_active Expired - Fee Related
-
2009
- 2009-08-06 TW TW98126477A patent/TWI393955B/zh not_active IP Right Cessation
- 2009-08-07 US US13/057,300 patent/US8814412B2/en not_active Expired - Fee Related
- 2009-08-07 KR KR1020117000984A patent/KR101286319B1/ko active IP Right Grant
- 2009-08-07 WO PCT/JP2009/064018 patent/WO2010016571A1/ja active Application Filing
- 2009-08-07 CN CN200980128695.9A patent/CN102105737B/zh not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002109926A (ja) * | 2000-09-29 | 2002-04-12 | Seiko Epson Corp | 照明装置及び液晶装置 |
JP2004265797A (ja) * | 2003-03-03 | 2004-09-24 | Citizen Electronics Co Ltd | 内部拡散手段を有する面光源 |
JP2006236641A (ja) * | 2005-02-23 | 2006-09-07 | Seiko Epson Corp | 照明装置、電気光学装置、および電子機器 |
JP2007141596A (ja) * | 2005-11-17 | 2007-06-07 | Epson Imaging Devices Corp | 照明装置、電気光学装置及び電子機器 |
JP2007256697A (ja) * | 2006-03-24 | 2007-10-04 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示装置 |
JP2008053009A (ja) * | 2006-08-23 | 2008-03-06 | Nidec Copal Corp | 導光板及び面発光装置 |
JP2009081014A (ja) * | 2007-09-26 | 2009-04-16 | Epson Imaging Devices Corp | 照明装置、電気光学装置及び電子機器 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102182969A (zh) * | 2011-05-16 | 2011-09-14 | 康佳集团股份有限公司 | 一种侧入式led光源背光模组 |
US20140111743A1 (en) * | 2012-10-18 | 2014-04-24 | Omron Corporation | Surface light source device, liquid crystal display device, and mobile device |
CN103775913A (zh) * | 2012-10-18 | 2014-05-07 | 欧姆龙株式会社 | 面光源装置、液晶显示装置及移动设备 |
US9086595B2 (en) * | 2012-10-18 | 2015-07-21 | Omron Corporation | Surface light source device, liquid crystal display device, and mobile device |
JP2014096312A (ja) * | 2012-11-12 | 2014-05-22 | Citizen Holdings Co Ltd | 面状ライトユニット |
CN107448909A (zh) * | 2016-05-31 | 2017-12-08 | 瑞仪光电(苏州)有限公司 | 背光模块 |
CN107448909B (zh) * | 2016-05-31 | 2019-10-15 | 瑞仪光电(苏州)有限公司 | 背光模块 |
Also Published As
Publication number | Publication date |
---|---|
US8814412B2 (en) | 2014-08-26 |
CN102105737B (zh) | 2016-05-04 |
TW201011403A (en) | 2010-03-16 |
KR20110030586A (ko) | 2011-03-23 |
JP2010040434A (ja) | 2010-02-18 |
TWI393955B (zh) | 2013-04-21 |
KR101286319B1 (ko) | 2013-07-15 |
JP5083111B2 (ja) | 2012-11-28 |
US20120002441A1 (en) | 2012-01-05 |
CN102105737A (zh) | 2011-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5083111B2 (ja) | 面光源装置 | |
US8310620B2 (en) | Surface light source device with frame having adhesive on reflector and circuit board and liquid crystal display device | |
JP4968014B2 (ja) | バックライト装置及び液晶表示装置 | |
US9158056B2 (en) | Light spreading illumination apparatus having a light guide with inclined portion having at least one pedestal and a light blocking member disposed thereon | |
CN110058452B (zh) | 照明装置和显示装置 | |
US8672530B2 (en) | Display device | |
JP3235664U (ja) | 光源モジュール及び表示装置 | |
JP2019185921A (ja) | 照明装置及びそれを備えた表示装置 | |
US20110205453A1 (en) | Illumination device, surface illuminant device, display device, and television receiver | |
JP5410922B2 (ja) | 面状照明装置 | |
JP4968015B2 (ja) | バックライト装置及び液晶表示装置 | |
WO2016170620A1 (ja) | 光源装置及び表示装置 | |
JP5044700B2 (ja) | 照明装置、表示装置、及びテレビ受信装置 | |
JP2014096312A (ja) | 面状ライトユニット | |
US10754082B2 (en) | Backlight unit and display device including the same | |
WO2010041499A1 (ja) | 照明装置、表示装置、及びテレビ受信装置 | |
US10670799B2 (en) | Backlight unit and display device including the same | |
US20120127393A1 (en) | Display device | |
JP2009231012A (ja) | バックライトユニット | |
WO2013038977A1 (ja) | 照明装置、表示装置、及びテレビ受信装置 | |
JP2009104946A (ja) | 光源装置及び液晶表示装置 | |
JP2009134903A (ja) | 面発光装置、表示装置および電子機器 | |
WO2017175489A1 (ja) | 表示装置および電子機器 | |
JP2005293925A (ja) | 照明装置および液晶表示装置 | |
CN213276207U (zh) | 光源模块及显示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980128695.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09805053 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20117000984 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13057300 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09805053 Country of ref document: EP Kind code of ref document: A1 |