US20140347886A1 - Display module - Google Patents
Display module Download PDFInfo
- Publication number
- US20140347886A1 US20140347886A1 US14/454,726 US201414454726A US2014347886A1 US 20140347886 A1 US20140347886 A1 US 20140347886A1 US 201414454726 A US201414454726 A US 201414454726A US 2014347886 A1 US2014347886 A1 US 2014347886A1
- Authority
- US
- United States
- Prior art keywords
- light
- outer frame
- guide plate
- display module
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- 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
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- 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
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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- 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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
Definitions
- the present invention relates to a display module, and more specifically, to a display module utilizing a light guide plate to be complementarily connected to an outer frame.
- the display module usually utilizes a design that an outer frame is directly combined with panel components (e.g. a glass protection cover and a liquid crystal panel) and backlight components (e.g. a diffuser film and a light emitting unit) to replace the prior art design that the panel components and the backlight components need to be fixed to each other by an additional iron frame first and then be assembled with the outer frame, so as to reduce space occupied by the panel components and the backlight components in the display module.
- panel components e.g. a glass protection cover and a liquid crystal panel
- backlight components e.g. a diffuser film and a light emitting unit
- This design usually utilizes an upper ear portion connected to a light exit surface of the light guide plate and protruding outwardly from a side of the light guide plate, to be stacked on the outer frame after the panel components and the backlight components are assembled with the outer frame sequentially. Accordingly, the assembly process of the display module is completed.
- this design may cause a hot-spot or hot-line problem due to light emitting out of the upper ear portion of the light guide plate, so as to influence display quality of the display module.
- this design may make the assembly process of the display module time-consuming and strenuous.
- this design may also cause the backlight components and the panel components disposed above the light guide plate to move upwardly relative to the light guide plate when the upper ear portion is stacked on the outer frame, so as to increase the overall thickness of the display module.
- the present invention further provides a display module including an outer frame, a light guide plate, at least one light emitting unit, and a panel device.
- the light guide plate has a light entrance surface, a light exit surface, and at least one connecting side. At least one connecting ear portion is extendedly formed from the connecting side for extending into the outer frame to fix the light guide plate onto the outer frame.
- the light emitting unit is disposed in the outer frame corresponding to the light entrance surface for emitting light into the light guide plate via the light entrance surface.
- the panel device is disposed on the light guide plate and contained in the outer frame for receiving the light emitted from the light guide plate.
- the connecting ear portion is away from the light exit surface by a vertical distance. The ratio of the length of the connecting ear portion to the length of the connecting side is greater than 0.2.
- FIG. 1 is an inner front view of a display module according to an embodiment of the present invention.
- FIG. 2 is a bottom view of the display module in FIG. 1 .
- FIG. 3 is an inner front view of a display module according to another embodiment of the present invention.
- FIG. 4 is an inner front view of a display module according to another embodiment of the present invention.
- FIG. 5 is an inner front view of a display module according to another embodiment of the present invention.
- FIG. 6 is an inner front view of a display module according to another embodiment of the present invention.
- FIG. 7 is a bottom view of the display module in FIG. 6 .
- FIG. 1 is an inner front view of a display module 10 according to an embodiment of the present invention.
- FIG. 2 is a bottom view of the display module 10 in FIG. 1 .
- the display module 10 includes a light guide plate 12 , an outer frame 14 , at least one light emitting unit 16 (two shown in FIG. 2 , but not limited thereto), and a panel device 18 .
- the light guide plate 12 has a light entrance surface 20 and at least one connecting side 22 (three shown in FIG. 2 ). At least one first recessed portion 24 (one shown on each connecting side 22 in FIG. 2 ) is formed on the connecting side 22 .
- the outer frame 14 is disposed on the light guide plate 12 and has a second recessed portion 26 formed thereon opposite to the first recessed portion 24 .
- the second recessed portion 26 is complementarily connected to the first recessed portion 24 for fixing the light guide plate 12 onto the outer frame 14 .
- the first recessed portion 24 and the second recessed portion 26 can be formed by a conventional structuring process (e.g. a cutting process).
- the ratio of the length of the first recessed portion 24 and the length of the connecting side 22 is preferably greater than 0.2. Accordingly, connection of the first recessed portion 24 and the second recessed portion 26 can provide sufficient connection force to fix the light guide plate 12 onto the outer frame 14 firmly.
- the light emitting unit 16 is disposed in the outer frame 14 corresponding to the light entrance surface 20 for emitting light into the light guide plate 12 via the light entrance surface 20 , so that the light guide plate 12 can provide sufficient light with uniform brightness to the panel device 18 .
- the light emitting unit 16 can be a light source commonly applied to a display apparatus, such as an LED (Light Emitting Diode).
- the panel device 18 is disposed on the light guide plate 12 and contained in the outer frame 14 for receiving the light emitted from the light guide plate 12 .
- the panel device 18 can include conventional panel components, such as a liquid crystal panel and a glass protection cover.
- number of the first recessed portion 24 on the connecting side 22 is not limited to one.
- the display module 10 can also have plural first recessed portions 24 formed on the connecting side 22 .
- the complementary connection design of the first recessed portion 24 and the second recessed portion 26 located at the left side of the display module 10 in FIG. 1 is provided as follows. As for description for the complementary connection designs of other first recessed portions 24 and the corresponding second recessed portions 26 , it can be reasoned by analogy and therefore omitted herein. As shown in FIG. 1 , the first recessed portion 24 has an upper surface 28 . The second recessed portion 26 has a lower surface 30 opposite to the upper surface 28 . The display module 10 further includes a first adhesive tape 32 attached between the upper surface 28 and the lower surface 30 for fixing the light guide plate 12 onto the outer frame 14 firmly.
- connection of the first connecting portion 24 and the second connecting portion 26 is not limited to the aforesaid tape connection design, meaning that the display module 10 can also utilize other conventional connection design, such as utilizing screws to fix the first recessed portion 24 onto the second recessed portion 26 .
- the present invention can not only simplify the assembly process of the display module 10 , but also efficiently prevent light in the light guide plate 12 from emitting out of the first recessed portion 24 of the light guide plate 12 , so as to solve the aforesaid hot-spot or hot-line problem. Furthermore, via the complementary connection design of the second recessed portion 26 of the outer frame 14 and the first recessed portion 24 of the light guide plate 12 , the present invention can further reduce the overall thickness of the display module 10 .
- the first recessed portion 24 further has a first side surface 34
- the second recessed portion 26 further has a second side surface 36 opposite to the firs side surface 34
- the display module 10 further includes a light shielding tape 38 .
- the light shielding tape 38 extends from an end of the first adhesive tape 32 and is attached onto the first side surface 34 (but not limited thereto). That is, the light shielding tape 38 can also be attached onto the first side surface 34 and the second side surface 36 , or only attached onto the second side surface 36 . Accordingly, the display module 10 can further prevent light from emitting out of the first side surface 34 of the first recessed portion 24 by the light shielding tape 38 .
- the first recessed portion 24 further has a bottom surface 40 and the display module 10 further includes a second adhesive tape 42 attached between the bottom surface 40 and the outer frame 14 for enhancing the connection strength between the light guide plate 12 and the outer frame 14 .
- the light guide plate 12 can still be fixed steadily even if the display module 10 falls down on the ground or receives sudden impact, so as to efficiently prevent damage of film components (e.g. a diffuser film) located above the light guide plate 12 caused by mutual friction between the light guide plate 12 and the film components.
- film components e.g. a diffuser film
- FIG. 3 is an inner front view of a display module 10 ′ according to another embodiment of the present invention.
- Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein.
- a rough microstructure 44 is formed on the upper surface 28 of the first recessed portion 24 and the lower surface 30 of the second recessed portion 26 respectively.
- the display module 10 ′ can utilize the rough microstructure 44 to increase the adhesive area of the first adhesive tape 32 on the upper surface 28 and the lower surface 30 when the first adhesive tape 32 is utilized to attach the upper surface 28 of the first recessed portion 24 onto the lower surface 30 of the second recessed portion 26 , so as to enhance the connection strength between the first recessed portion 24 and the second recessed portion 26 .
- FIG. 4 is an inner front view of a display module 10 ′′ according to another embodiment of the present invention.
- Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein.
- at least one slot structure 46 (one shown in FIG. 4 , but not limited thereto) is formed on the upper surface 28 , and the lower surface 30 has a protruding structure 48 formed thereon corresponding to the slot structure 46 .
- the first adhesive tape 32 is attached between the slot structure 46 and the protruding structure 48 .
- the slot structure 46 is preferably a concave V-shaped structure, and the protruding structure 48 is a corresponding convex V-shaped structure.
- the display module 10 ′′ can utilize the complementary connection of the slot structure 46 and the protruding structure 48 to increase the adhesive area of the first adhesive tape 32 on the upper surface 28 and the lower surface 30 , so as to enhance the connection strength between the first recessed portion 24 and the second recessed portion 26 .
- the structural designs of the first recessed portion 24 and the second recessed portion 26 are not limited to the structural designs as shown in FIG. 1 .
- FIG. 5 is an inner front view of a display module 10 ′′′ according to another embodiment of the present invention. Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein.
- a first recessed portion 24 ′ is formed on the light guide plate 12
- the outer frame 14 has a second recessed portion 26 ′ opposite to the first recessed portion 24 ′.
- the first recessed portion 24 ′ and the second recessed portion 26 ′ are complementary step structures, and the first adhesive tape 32 is used for attaching between the first recessed portion 24 ′ and the second recessed portion 26 ′.
- the display module 10 ′′′ can utilize the complementary connection of the first recessed portion 24 ′ and the second recessed portion 26 ′ to increase the adhesive area of the first adhesive tape 32 on the first recessed portion 24 ′ and the second recessed portion 26 ′, so as to enhance the connection strength between the first recessed portion 24 ′ and the second recessed portion 26 ′.
- FIG. 6 is an inner front view of a display module 100 according to another embodiment of the present invention.
- FIG. 7 is a bottom view of the display module 100 in FIG. 6 .
- the display module 100 includes an outer frame 102 , a light guide plate 104 , at least one light emitting unit 16 (two shown in FIG. 7 ), and the panel device 18 .
- the light guide plate 104 has a light entrance surface 106 , a light exit surface 108 , at least one connecting side 110 (two shown in FIG. 6 and FIG. 7 ), and a reflection bottom surface 112 opposite to the light exit surface 108 . Accordingly, light emitted by the light emitting unit 16 can be incident into the light guide plate 104 via the light entrance surface 106 , reflected by the reflection bottom surface 112 , and then emitted out of the light exit surface 108 uniformly, so that the light guide plate 104 can provide sufficient light to the panel device 18 .
- At least one connecting ear portion 114 extends outwardly from the connecting side 110 .
- the connecting ear portion 114 can be formed on the connecting side 110 of the light guide plate 104 by a conventional integrally-forming process (e.g. an injection forming process).
- the outer frame 102 has a connecting slot 116 corresponding to the connecting ear portion 114 .
- the connecting ear portion 114 is used for extending into the connecting slot 116 to be connected to the outer frame 102 , so as to fix the light guide plate 104 onto the outer frame 102 .
- the connecting ear portion 114 is away from the light exit surface 108 by a vertical distance D, and the ratio of the length of the connecting ear portion 114 to the length of the connecting side 110 is greater than 0 . 2 . Accordingly, engagement of the connecting ear portion 114 and the connecting slot 116 can provide sufficient connection force to fix the light guide plate 104 onto the outer frame 102 firmly.
- the present invention can not only efficiently prevent light emitted by the light emitting unit 16 from emitting out of the connecting ear portion 114 of the light guide plate 104 so as to solve the aforesaid hot-spot or hot-line problem, but also reduce the overall thickness of the display module 100 .
- the forming position of the connecting ear portion 114 is not limited to the position as shown in FIG. 6 . That is, the connecting ear portion 114 can be connected to the refection bottom surface 112 of the light guide plate 104 instead, and the forming position of the connecting slot 116 can be changed to the position corresponding to the reflection bottom surface 112 . Accordingly, the connecting ear portion 114 of the light guide plate 104 and the connecting slot 116 of the outer frame 102 can cooperatively form the complementary connecting structures similar to the first recessed portion 24 of the light guide plate 12 and the second recessed portion 26 of the outer frame 14 . As for description for the related connecting design and the derivative embodiments, it can be reasoned according to the aforesaid embodiments and therefore omitted herein.
- the present invention utilizes the design that the first recessed portion of the light guide plate is located under and directly connected to the second recessed portion of the outer frame or the connecting ear portion of the light guide plate extends into the connecting slot of the outer frame, to fix the light guide plate onto the outer frame firmly.
- the present invention can prevent light in the light guide plate from emitting out of the side of the light guide plate so as to solve the aforesaid hot-spot or hot-line problem.
- the present invention via the complementary connection of the light guide plate and the outer frame, the present invention can further reduce the overall thickness of the display module.
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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Abstract
A display module includes an outer frame, a light emitting unit, a panel device, and a light guide plate having a light entrance surface, a light exit surface, and a connecting side. A connecting ear portion is extendedly formed from the connecting side for extending into the outer frame to fix the light guide plate onto the outer frame. The light emitting unit is disposed in the outer frame corresponding to the light entrance surface for emitting light into the light guide plate via the light entrance surface. The panel device is disposed on the light guide plate and contained in the outer frame for receiving light emitted from the light guide plate. The connecting ear portion is away from the light exit surface by a vertical distance, and the ratio of the length of the connecting ear portion to the length of the connecting side is greater than 0.2.
Description
- This application is a division of application Ser. No. 13/412,642 filed on Mar. 6, 2012. The entire contents of this application are hereby incorporated by reference.
- 1. Field of the Invention
- The present invention relates to a display module, and more specifically, to a display module utilizing a light guide plate to be complementarily connected to an outer frame.
- 2. Description of the Prior Art
- As a conventional display module becomes lighter, thinner, shorter, and smaller in recent years, the display module usually utilizes a design that an outer frame is directly combined with panel components (e.g. a glass protection cover and a liquid crystal panel) and backlight components (e.g. a diffuser film and a light emitting unit) to replace the prior art design that the panel components and the backlight components need to be fixed to each other by an additional iron frame first and then be assembled with the outer frame, so as to reduce space occupied by the panel components and the backlight components in the display module. This design usually utilizes an upper ear portion connected to a light exit surface of the light guide plate and protruding outwardly from a side of the light guide plate, to be stacked on the outer frame after the panel components and the backlight components are assembled with the outer frame sequentially. Accordingly, the assembly process of the display module is completed.
- However, this design may cause a hot-spot or hot-line problem due to light emitting out of the upper ear portion of the light guide plate, so as to influence display quality of the display module. Furthermore, since the outer frame needs to be driven open or the light guide plate needs to be bent first so that the upper ear portion can enter the outer frame and then be stacked on the outer frame, this design may make the assembly process of the display module time-consuming and strenuous. In addition, this design may also cause the backlight components and the panel components disposed above the light guide plate to move upwardly relative to the light guide plate when the upper ear portion is stacked on the outer frame, so as to increase the overall thickness of the display module.
- The present invention further provides a display module including an outer frame, a light guide plate, at least one light emitting unit, and a panel device. The light guide plate has a light entrance surface, a light exit surface, and at least one connecting side. At least one connecting ear portion is extendedly formed from the connecting side for extending into the outer frame to fix the light guide plate onto the outer frame. The light emitting unit is disposed in the outer frame corresponding to the light entrance surface for emitting light into the light guide plate via the light entrance surface. The panel device is disposed on the light guide plate and contained in the outer frame for receiving the light emitted from the light guide plate. The connecting ear portion is away from the light exit surface by a vertical distance. The ratio of the length of the connecting ear portion to the length of the connecting side is greater than 0.2.
- These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
-
FIG. 1 is an inner front view of a display module according to an embodiment of the present invention. -
FIG. 2 is a bottom view of the display module inFIG. 1 . -
FIG. 3 is an inner front view of a display module according to another embodiment of the present invention. -
FIG. 4 is an inner front view of a display module according to another embodiment of the present invention. -
FIG. 5 is an inner front view of a display module according to another embodiment of the present invention. -
FIG. 6 is an inner front view of a display module according to another embodiment of the present invention. -
FIG. 7 is a bottom view of the display module inFIG. 6 . - Please refer to
FIG. 1 andFIG. 2 .FIG. 1 is an inner front view of adisplay module 10 according to an embodiment of the present invention.FIG. 2 is a bottom view of thedisplay module 10 inFIG. 1 . As shown inFIG. 1 andFIG. 2 , thedisplay module 10 includes alight guide plate 12, anouter frame 14, at least one light emitting unit 16 (two shown inFIG. 2 , but not limited thereto), and apanel device 18. Thelight guide plate 12 has alight entrance surface 20 and at least one connecting side 22 (three shown inFIG. 2 ). At least one first recessed portion 24 (one shown on each connectingside 22 inFIG. 2 ) is formed on the connectingside 22. Theouter frame 14 is disposed on thelight guide plate 12 and has a second recessedportion 26 formed thereon opposite to the first recessedportion 24. The secondrecessed portion 26 is complementarily connected to the first recessedportion 24 for fixing thelight guide plate 12 onto theouter frame 14. The firstrecessed portion 24 and the second recessedportion 26 can be formed by a conventional structuring process (e.g. a cutting process). Furthermore, in this embodiment, the ratio of the length of the firstrecessed portion 24 and the length of the connectingside 22 is preferably greater than 0.2. Accordingly, connection of the first recessedportion 24 and the second recessedportion 26 can provide sufficient connection force to fix thelight guide plate 12 onto theouter frame 14 firmly. - The
light emitting unit 16 is disposed in theouter frame 14 corresponding to thelight entrance surface 20 for emitting light into thelight guide plate 12 via thelight entrance surface 20, so that thelight guide plate 12 can provide sufficient light with uniform brightness to thepanel device 18. Thelight emitting unit 16 can be a light source commonly applied to a display apparatus, such as an LED (Light Emitting Diode). Thepanel device 18 is disposed on thelight guide plate 12 and contained in theouter frame 14 for receiving the light emitted from thelight guide plate 12. Thepanel device 18 can include conventional panel components, such as a liquid crystal panel and a glass protection cover. - To be noted, number of the first recessed
portion 24 on the connectingside 22 is not limited to one. In other words, thedisplay module 10 can also have plural first recessedportions 24 formed on the connectingside 22. - More detailed description for the complementary connection design of the first
recessed portion 24 and the secondrecessed portion 26 located at the left side of thedisplay module 10 inFIG. 1 is provided as follows. As for description for the complementary connection designs of other first recessedportions 24 and the corresponding second recessedportions 26, it can be reasoned by analogy and therefore omitted herein. As shown inFIG. 1 , the firstrecessed portion 24 has anupper surface 28. The second recessedportion 26 has a lower surface 30 opposite to theupper surface 28. Thedisplay module 10 further includes a firstadhesive tape 32 attached between theupper surface 28 and the lower surface 30 for fixing thelight guide plate 12 onto theouter frame 14 firmly. To be noted, connection of the first connectingportion 24 and the second connectingportion 26 is not limited to the aforesaid tape connection design, meaning that thedisplay module 10 can also utilize other conventional connection design, such as utilizing screws to fix the first recessedportion 24 onto the second recessedportion 26. - In the aforesaid configuration, since the first
recessed portion 24 of thelight guide plate 12 can be directly connected to and located under the secondrecessed portion 26 of theouter frame 14, the present invention can not only simplify the assembly process of thedisplay module 10, but also efficiently prevent light in thelight guide plate 12 from emitting out of the first recessedportion 24 of thelight guide plate 12, so as to solve the aforesaid hot-spot or hot-line problem. Furthermore, via the complementary connection design of the secondrecessed portion 26 of theouter frame 14 and the firstrecessed portion 24 of thelight guide plate 12, the present invention can further reduce the overall thickness of thedisplay module 10. - In this embodiment, for preventing light from emitting out of the side surface of the
light guide plate 12, the first recessedportion 24 further has afirst side surface 34, the second recessedportion 26 further has asecond side surface 36 opposite to thefirs side surface 34, and thedisplay module 10 further includes alight shielding tape 38. Thelight shielding tape 38 extends from an end of the firstadhesive tape 32 and is attached onto the first side surface 34 (but not limited thereto). That is, thelight shielding tape 38 can also be attached onto thefirst side surface 34 and thesecond side surface 36, or only attached onto thesecond side surface 36. Accordingly, thedisplay module 10 can further prevent light from emitting out of thefirst side surface 34 of the first recessedportion 24 by thelight shielding tape 38. Furthermore, as shown inFIG. 2 , the firstrecessed portion 24 further has abottom surface 40 and thedisplay module 10 further includes a secondadhesive tape 42 attached between thebottom surface 40 and theouter frame 14 for enhancing the connection strength between thelight guide plate 12 and theouter frame 14. - In such a manner, via attachment of the first
adhesive tape 32 and the secondadhesive tape 42, thelight guide plate 12 can still be fixed steadily even if thedisplay module 10 falls down on the ground or receives sudden impact, so as to efficiently prevent damage of film components (e.g. a diffuser film) located above thelight guide plate 12 caused by mutual friction between thelight guide plate 12 and the film components. - Furthermore, the structural designs of the
upper surface 28 of the first recessedportion 24 and the lower surface 30 of the second recessedportion 26 are not limited to the aforesaid embodiment. For example, please refer toFIG. 3 , which is an inner front view of adisplay module 10′ according to another embodiment of the present invention. Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein. As shown inFIG. 3 , arough microstructure 44 is formed on theupper surface 28 of the first recessedportion 24 and the lower surface 30 of the second recessedportion 26 respectively. Accordingly, thedisplay module 10′ can utilize therough microstructure 44 to increase the adhesive area of the firstadhesive tape 32 on theupper surface 28 and the lower surface 30 when the firstadhesive tape 32 is utilized to attach theupper surface 28 of the first recessedportion 24 onto the lower surface 30 of the second recessedportion 26, so as to enhance the connection strength between the first recessedportion 24 and the second recessedportion 26. - Furthermore, please refer to
FIG. 4 , which is an inner front view of adisplay module 10″ according to another embodiment of the present invention. Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein. As shown inFIG. 4 , at least one slot structure 46 (one shown inFIG. 4 , but not limited thereto) is formed on theupper surface 28, and the lower surface 30 has a protrudingstructure 48 formed thereon corresponding to the slot structure 46. The firstadhesive tape 32 is attached between the slot structure 46 and the protrudingstructure 48. The slot structure 46 is preferably a concave V-shaped structure, and the protrudingstructure 48 is a corresponding convex V-shaped structure. In such a manner, when the firstadhesive tape 32 is utilize to attach theupper surface 28 of the first recessedportion 24 onto the lower surface 30 of the second recessedportion 26, thedisplay module 10″ can utilize the complementary connection of the slot structure 46 and the protrudingstructure 48 to increase the adhesive area of the firstadhesive tape 32 on theupper surface 28 and the lower surface 30, so as to enhance the connection strength between the first recessedportion 24 and the second recessedportion 26. - The structural designs of the first recessed
portion 24 and the second recessedportion 26 are not limited to the structural designs as shown inFIG. 1 . For example, please refer toFIG. 5 , which is an inner front view of adisplay module 10″′ according to another embodiment of the present invention. Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein. As shown inFIG. 5 , a first recessedportion 24′ is formed on thelight guide plate 12, and theouter frame 14 has a second recessedportion 26′ opposite to the first recessedportion 24′. The first recessedportion 24′ and the second recessedportion 26′ are complementary step structures, and the firstadhesive tape 32 is used for attaching between the first recessedportion 24′ and the second recessedportion 26′. In such a manner, when the firstadhesive tape 32 is utilize to attach the first recessedportion 24′ onto the second recessedportion 26′, thedisplay module 10″′ can utilize the complementary connection of the first recessedportion 24′ and the second recessedportion 26′ to increase the adhesive area of the firstadhesive tape 32 on the first recessedportion 24′ and the second recessedportion 26′, so as to enhance the connection strength between the first recessedportion 24′ and the second recessedportion 26′. - The structural designs of the light guide plate and the outer frame are not limited to the structural designs as shown in
FIG. 1 . Please refer toFIG. 6 andFIG. 7 .FIG. 6 is an inner front view of adisplay module 100 according to another embodiment of the present invention.FIG. 7 is a bottom view of thedisplay module 100 inFIG. 6 . Components both mentioned in this embodiment and the aforesaid embodiment represent components with similar functions or structures, and the related description is omitted herein. As shown inFIG. 6 andFIG. 7 , thedisplay module 100 includes anouter frame 102, alight guide plate 104, at least one light emitting unit 16 (two shown inFIG. 7 ), and thepanel device 18. Thelight guide plate 104 has alight entrance surface 106, alight exit surface 108, at least one connecting side 110 (two shown inFIG. 6 andFIG. 7 ), and a reflectionbottom surface 112 opposite to thelight exit surface 108. Accordingly, light emitted by thelight emitting unit 16 can be incident into thelight guide plate 104 via thelight entrance surface 106, reflected by the reflectionbottom surface 112, and then emitted out of thelight exit surface 108 uniformly, so that thelight guide plate 104 can provide sufficient light to thepanel device 18. - In this embodiment, at least one connecting ear portion 114 (one shown in
FIG. 6 andFIG. 7 ) extends outwardly from the connectingside 110. The connectingear portion 114 can be formed on the connectingside 110 of thelight guide plate 104 by a conventional integrally-forming process (e.g. an injection forming process). Theouter frame 102 has a connectingslot 116 corresponding to the connectingear portion 114. The connectingear portion 114 is used for extending into the connectingslot 116 to be connected to theouter frame 102, so as to fix thelight guide plate 104 onto theouter frame 102. The connectingear portion 114 is away from thelight exit surface 108 by a vertical distance D, and the ratio of the length of the connectingear portion 114 to the length of the connectingside 110 is greater than 0.2. Accordingly, engagement of the connectingear portion 114 and the connectingslot 116 can provide sufficient connection force to fix thelight guide plate 104 onto theouter frame 102 firmly. - Via the design that the connecting
ear portion 114 extends into the connectingslot 116, the present invention can not only efficiently prevent light emitted by thelight emitting unit 16 from emitting out of the connectingear portion 114 of thelight guide plate 104 so as to solve the aforesaid hot-spot or hot-line problem, but also reduce the overall thickness of thedisplay module 100. - It should be mentioned that the forming position of the connecting
ear portion 114 is not limited to the position as shown inFIG. 6 . That is, the connectingear portion 114 can be connected to the refectionbottom surface 112 of thelight guide plate 104 instead, and the forming position of the connectingslot 116 can be changed to the position corresponding to the reflectionbottom surface 112. Accordingly, the connectingear portion 114 of thelight guide plate 104 and the connectingslot 116 of theouter frame 102 can cooperatively form the complementary connecting structures similar to the first recessedportion 24 of thelight guide plate 12 and the second recessedportion 26 of theouter frame 14. As for description for the related connecting design and the derivative embodiments, it can be reasoned according to the aforesaid embodiments and therefore omitted herein. - Compared with the prior art, the present invention utilizes the design that the first recessed portion of the light guide plate is located under and directly connected to the second recessed portion of the outer frame or the connecting ear portion of the light guide plate extends into the connecting slot of the outer frame, to fix the light guide plate onto the outer frame firmly. In such a manner, the present invention can prevent light in the light guide plate from emitting out of the side of the light guide plate so as to solve the aforesaid hot-spot or hot-line problem. Furthermore, via the complementary connection of the light guide plate and the outer frame, the present invention can further reduce the overall thickness of the display module.
- Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (6)
1. A display module comprising:
an outer frame;
a light guide plate having a light entrance surface, a light exit surface, and at least one connecting side, at least one connecting ear portion being extendedly formed from the connecting side for extending into the outer frame to fix the light guide plate onto the outer frame;
at least one light emitting unit disposed in the outer frame corresponding to the light entrance surface for emitting light into the light guide plate via the light entrance surface; and
a panel device disposed on the light guide plate and contained in the outer frame for receiving the light emitted from the light guide plate;
wherein the connecting ear portion is away from the light exit surface by a vertical distance, and the ratio of the length of the connecting ear portion to the length of the connecting side is greater than 0.2.
2. The display module of claim 1 , wherein the outer frame has a connecting slot corresponding to the connecting ear portion, and the connecting ear portion extends into the connecting slot to be connected to the outer frame.
3. The display module of claim 1 , wherein the light guide plate further has a reflection bottom surface opposite to the light exit surface, the connecting ear portion is connected to the reflection bottom surface, the outer frame has a connecting slot corresponding to the connecting ear portion, and the connecting ear portion extends into the connecting slot to be connected to the outer frame.
4. The display module of claim 3 , wherein the connecting ear portion has an upper surface, the connecting slot has a lower surface opposite to the upper surface, and the display module further comprises a first adhesive tape attached between the upper surface and the lower surface.
5. The display module of claim 4 , wherein the connecting ear portion further has a first side surface, the connecting slot further has a second side surface opposite to the first side surface, the display module further comprises a light shielding tape, and the light shielding tape extends from an end of the first adhesive tape and is attached onto at least one of the first side surface and the second side surface.
6. The display module of claim 4 , wherein the connecting ear portion further has a bottom surface, and the display module further comprises a second adhesive tape attached between the bottom surface and the outer frame.
Priority Applications (1)
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US14/454,726 US20140347886A1 (en) | 2011-09-28 | 2014-08-08 | Display module |
Applications Claiming Priority (4)
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TW100135022A TWI447482B (en) | 2011-09-28 | 2011-09-28 | Display module |
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US13/412,642 US8834007B2 (en) | 2011-09-28 | 2012-03-06 | Display module |
US14/454,726 US20140347886A1 (en) | 2011-09-28 | 2014-08-08 | Display module |
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US13/412,642 Division US8834007B2 (en) | 2011-09-28 | 2012-03-06 | Display module |
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CN103912819A (en) * | 2012-12-31 | 2014-07-09 | 武汉天马微电子有限公司 | Backlight module and liquid crystal display device |
CN103543543B (en) * | 2013-11-05 | 2016-04-06 | 深圳市华星光电技术有限公司 | Frame-free liquid crystal display device |
US9188800B2 (en) | 2013-11-05 | 2015-11-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Liquid crystal display device |
KR102151154B1 (en) | 2013-12-12 | 2020-09-02 | 엘지디스플레이 주식회사 | Display device |
CN105242474B (en) * | 2014-07-09 | 2019-05-28 | 宸鸿科技(厦门)有限公司 | Touch electro phoretic display device |
CN104460066B (en) * | 2014-12-26 | 2018-05-29 | 深圳市华星光电技术有限公司 | A kind of liquid crystal display |
CN104597641B (en) * | 2015-02-12 | 2017-08-11 | 京东方科技集团股份有限公司 | A kind of double-side display device |
CN104914619B (en) * | 2015-05-25 | 2018-04-27 | 武汉华星光电技术有限公司 | Backlight module and display device |
CN105676339A (en) * | 2016-02-22 | 2016-06-15 | 京东方科技集团股份有限公司 | Side-incoming type backlight unit and display device |
CN107393948B (en) * | 2017-08-11 | 2020-05-19 | 武汉华星光电半导体显示技术有限公司 | Middle frame for fixing flexible display panel and flexible display device |
CN107966759B (en) * | 2017-11-24 | 2020-01-14 | 厦门天马微电子有限公司 | Backlight module |
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Also Published As
Publication number | Publication date |
---|---|
US20130077347A1 (en) | 2013-03-28 |
CN103941473A (en) | 2014-07-23 |
TW201314302A (en) | 2013-04-01 |
CN102508377B (en) | 2015-03-04 |
CN102508377A (en) | 2012-06-20 |
US8834007B2 (en) | 2014-09-16 |
TWI447482B (en) | 2014-08-01 |
CN103941473B (en) | 2016-09-07 |
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