CN111258114A - Display device - Google Patents
Display device Download PDFInfo
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- CN111258114A CN111258114A CN202010051925.4A CN202010051925A CN111258114A CN 111258114 A CN111258114 A CN 111258114A CN 202010051925 A CN202010051925 A CN 202010051925A CN 111258114 A CN111258114 A CN 111258114A
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- Prior art keywords
- guide plate
- light guide
- display panel
- light
- display device
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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
- 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
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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
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The present invention provides a display device, including: a display panel for image display; the backlight module provides a backlight source for the display panel; the backlight module includes: the light guide plate is used for homogenizing light and comprises a light emergent surface; and the mounting end face is positioned on the side of the light guide plate, faces the display panel, is lower than the light emergent face of the light guide plate or is flush with the light emergent face of the light guide plate, and the display panel is mounted on at least one of the light emergent face and the mounting end face of the light guide plate. The invention can make the thickness of the display device thinner.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the development of modern industries and the emergence of various information processing devices with computers as their centers, the market for display panels, particularly liquid crystal display panels, has been rapidly expanding and is widely used in various fields such as personal computers, information appliances, and car navigation.
The current display device, as shown in fig. 1, includes a display panel 81 and a backlight module 82, where the display panel 81 is used for displaying an image, and the backlight module 82 is used for providing a backlight source for the display panel 81. The backlight module 82 may include a middle frame 83, a light guide plate 84, a back plate 85, and the like, wherein the middle frame 83 includes a middle frame transverse wall 86 extending toward the inner side of the display panel 81, an edge portion of the display panel 81 is fixed on the back plate 85 through the middle frame transverse wall 86, and the light guide plate 84 is fixed between the middle frame transverse wall 86 and the back plate 85, that is, the middle frame transverse wall 86 is located between the display panel 81 and the light guide plate 84.
However, in the above-mentioned conventional display device, since the middle frame lateral wall is located between the display panel and the light guide plate, a part of the dimension in the height direction of the display panel needs to be additionally left between the display panel and the light guide plate for accommodating the middle frame lateral wall, and thus the thickness of the entire display panel is thick.
Disclosure of Invention
The invention provides a display device, which can reduce the thickness of the display device.
The display device provided by the invention comprises:
a display panel for image display; and
the backlight module provides a backlight source for the display panel;
the backlight module includes:
the light guide plate is used for homogenizing light and comprises a light emergent surface; and
a mounting end face which is positioned at the side of the light guide plate and faces the display panel, wherein the mounting end face is lower than the light emergent face of the light guide plate or is flush with the light emergent face of the light guide plate,
the display panel is installed on at least one of the light-emitting surface and the installation end surface of the light guide plate.
In a possible embodiment, the backlight module further includes a middle frame located at a side of the light guide plate, the middle frame includes a panel fixing portion extending toward the light guide plate, and a surface of the panel fixing portion facing the back surface of the display panel is a mounting end surface.
In one possible embodiment, the middle frame extends along a top end and a side end of the light guide plate, and the top end and the side end of the display panel are fixed on at least one of the mounting end surface and the light emitting surface of the light guide plate.
In one possible embodiment, the bottom end of the display panel is fixed on the light guide plate.
In a possible embodiment, the backlight module further includes a back plate, the light guide plate is fixed on the back plate, and the panel fixing portion of the middle frame is fixed on the back plate.
In one possible embodiment, the middle frame further includes a side wall portion, the side wall portion is connected to the panel fixing portion, and the side wall portion is disposed on a side of the display panel and the light guide plate.
In a possible embodiment, the backlight module further includes:
the light emitting direction of the light source faces to the light incident surface of the light guide plate; and
the heat dissipation plate is used for dissipating heat of the light source, and the cover portion is arranged on the heat dissipation plate to cover the backboard, the bottom of the light guide plate and the light source.
In one possible embodiment, the heat dissipation plate extends along a bottom end of the light guide plate, and the heat dissipation plate includes:
the first wall part is positioned at the side of the light guide plate and the back plate;
the second wall part is connected with the first wall part and is fixed on the surface of the back plate, which is far away from the light guide plate; and
and the third wall part is positioned on one side of the light guide plate, which is far away from the back plate, and the third wall part, the first wall part and the second wall part are cover parts.
In one possible embodiment, the display panel is fixed on at least one of the mounting end surface and the light emitting surface of the light guide plate by an adhesive.
In a possible embodiment, the backlight module further includes an optical film disposed between the display panel and the light guide plate, the optical film is used for improving the front brightness of the display panel, and the adhesive layer is disposed around the outer side of the optical film.
The present invention provides a display device including: a display panel for image display; the backlight module is used for providing a backlight source for the display panel, the backlight module comprises a light guide plate for homogenizing light, the backlight module is provided with an installation end face located on the side of the light guide plate, the installation end face faces the display panel and is lower than a light emitting face of the light guide plate, or the installation end face is flush with the light emitting face of the light guide plate, and the display panel is installed on at least one of the light emitting face and the installation end face of the light guide plate. Because the display panel is installed on at least one of the light-emitting surface and the installation end surface of the light guide plate, and the installation end surface is lower than the light-emitting surface of the light guide plate or the installation end surface is flush with the light-emitting surface of the light guide plate, compared with the prior art, the distance between the display panel and the light guide plate at least omits the thickness of the part corresponding to the transverse wall of the middle frame, and the thickness of the whole display panel is thinned.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional structure of a conventional display device;
fig. 2 is a schematic diagram of a split structure of a display device according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural diagram of a display device according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view of part A of FIG. 3;
FIG. 4a is a schematic cross-sectional structural view of another structure of a display device according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structural view of another structure of a display device according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structural view of still another structure of a display device according to an embodiment of the present invention;
fig. 7 is a partially enlarged schematic view of a part B of fig. 3.
Description of reference numerals:
10. 81-a display panel;
11-chip on film;
20. 82-a backlight module;
21-an optical film;
22. 84-a light guide plate;
23-reflective sheet
24. 85-a back plate;
30. 83-middle frame;
31-a mounting end face;
32-panel securing portion;
33-a sidewall portion;
40-a light source;
50-a front shell;
60-a heat sink;
61-a first wall portion;
62-a second wall portion;
63-a third wall portion;
64-a drive plate;
65-a cover part;
86-middle frame transverse wall;
211-the light exit surface of the light guide plate;
212-back of the back plate;
213-an adhesive;
214-structural glue;
215-step portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Fig. 2 is a schematic diagram of a split structure of a display device according to an embodiment of the present invention, and referring to fig. 2, the embodiment provides a display device 100, including:
a display panel 10, the display panel 10 being for image display; and
the backlight module 20 provides a backlight source for the display panel 10.
Optionally, the display device further includes a front cover 50, and the front cover 50 covers the bottom end of the display panel 10 and is used for shielding the bottom end of the display panel 10.
In the embodiment of the present invention, the backlight module sequentially includes, from the front side to the back side of the display panel 10:
The display panel 10 may be a liquid crystal display panel, and since the liquid crystal display panel 10 itself does not emit light, the backlight module 20 is required to provide a backlight source for the liquid crystal display panel 10.
In the embodiment of the present invention, the front shell 50 may be located below the bottom of the display panel 10, and is used for shielding the bottom end of the display panel 10, for example, in a case that a Chip On Film (COF) 11 is further connected to the bottom end of the display panel 10, the front shell 50 may shield the COF 11, so as to ensure an aesthetic appearance of the display device.
In the embodiment of the present invention, the optical film 21 refers to an optical film such as a diffusion sheet, a lower prism film, or an upper prism film, and the optical film 21 is mainly used to improve the front luminance, i.e., the axial luminance, of the liquid crystal display panel 10 without increasing the number of the light sources 40.
Fig. 3 is a schematic cross-sectional structure of a display device according to an embodiment of the invention, fig. 4 is a partially enlarged schematic view of the component a in fig. 3, and referring to fig. 3 and fig. 4, in order to fix the display panel 10, optionally, the backlight module further includes a mounting end surface 31 located at a side of the light guide plate 22, the mounting end surface 31 faces the display panel 10, the mounting end surface 31 is lower than the light emitting surface 211 of the light guide plate, or the mounting end surface 31 is flush with the light emitting surface 211 of the light guide plate, that is, a height H1 of the mounting end surface 31 is less than or equal to a height H2 of the light emitting surface 211 of the light guide plate, and the display panel 10 is.
Since the display panel 10 is mounted on at least one of the light emitting surface 211 and the mounting end surface 31 of the light guide plate, and the height of the mounting end surface 31 is less than or equal to the height of the light emitting surface 211 of the light guide plate, the distance between the display panel 10 and the light guide plate 22 is at least reduced in thickness of a portion corresponding to the horizontal wall of the bezel compared to the related art, regardless of whether the display panel is fixed on the light emitting surface 211 or the mounting end surface 31 of the light guide plate, and thus the thickness of the entire display panel 10 is reduced.
The light guide plate 22 is used for homogenizing the light, and includes a light exit surface facing the display panel 10. The mounting end face 31 of the backlight module is located at the side of the light guide plate 22, the side face of the light guide plate 22 is a side face perpendicular to the light emitting face 211 of the light guide plate, and the side face of the light guide plate 22 is an outer side of the side face of the light guide plate 22. The height H1 of the mounting end face 31 may refer to the distance between the mounting end face 31 and the bottom surface of the back plate 24, i.e., the back plate back surface 212, and the height H2 of the light emitting surface 211 of the light guide plate may refer to the distance between the light emitting surface 211 of the light guide plate and the back plate back surface 212.
In the embodiment of the present invention, the light guide plate may be fixed on at least one of the mounting end surface 31 and the light emitting surface 211 of the light guide plate by the adhesive 213. In one possible embodiment, the display panel 10 is fixed on at least one of the mounting end surface 31 and the light emitting surface 211 of the light guide plate by an adhesive 213.
Thus, even if the height of the mounting end surface 31 is slightly lower or higher than the light exit surface 211 of the light guide plate due to processing errors, assembly errors, or the like, the soft adhesive 213 can absorb such errors during mounting. The adhesive 213 may be a light-transmissive optical adhesive to avoid affecting the light transmittance of the display panel 10, and the light-transmissive optical adhesive is preferably an optical adhesive with a high light transmittance.
In the embodiment of the present invention, the display panel 10 is mounted on at least one of the light emitting surface 211 and the mounting end surface 31 of the light guide plate, which includes the following three cases: the display panel 10 is simultaneously mounted on the light emitting surface 211 and the mounting end surface 31 of the light guide plate; or the display panel 10 is only installed on the light emitting surface 211 of the light guide plate; or the display panel 10 is mounted only on the mounting end face 31.
Referring to fig. 3 and 4, when the display panel 10 is simultaneously mounted on the light emitting surface 211 and the mounting end surface 31 of the light guide plate, the adhesive 213 is located at a boundary position between the light emitting surface 211 and the mounting end surface 31 of the light guide plate, and can simultaneously cover the light emitting surface 211 and the mounting end surface 31 of the light guide plate. The display panel 10 may be simultaneously fixed on the light guide plate 22 and the middle frame 30 by the adhesive 213.
The light-emitting surface 211 of the light guide plate may be flush with the mounting end surface 31, so as to facilitate the bonding process between the adhesive 213 and the light guide plate 22 and the middle frame 30. Referring to fig. 4a, it can be understood that when the height of the mounting end surface 31 is less than the height of the light emitting surface 211 of the light guide plate, a small step 215 is formed between the mounting end surface 31 and the light emitting surface 211 of the light guide plate, and at this time, the thickness of the adhesive corresponding to the mounting end surface 31 may be thicker than the thickness of the adhesive corresponding to the light emitting surface 211 of the light guide plate, so as to ensure that the surface of the adhesive 213 for mounting the display panel 10 is a plane.
It can be understood that, if the height of the mounting end surface 31 is higher than the height of the light emitting surface 211 of the light guide plate due to processing errors, assembly errors, and the like, a small step portion may be formed between the mounting end surface 31 and the light emitting surface 211 of the light guide plate, and at this time, the thickness of the adhesive corresponding to the mounting end surface 31 may be thinner than the thickness of the adhesive corresponding to the light emitting surface 211 of the light guide plate, so as to ensure that the surface of the adhesive 213 for mounting the display panel 10 is a plane.
As can be seen from fig. 3 and 4, when the display panel 10 is simultaneously mounted on the light emitting surface 211 and the mounting end surface 31 of the light guide plate, the distance between the display panel 10 and the light guide plate 22 is the same as the thickness of the adhesive 213, and at least the thickness of the portion corresponding to the horizontal wall of the middle frame is omitted compared with the prior art, so that the thickness of the whole display panel 10 is reduced.
Fig. 5 is a schematic cross-sectional structure view of another structure of the display device according to the embodiment of the present invention, and fig. 5 shows a case where the display panel 10 is only mounted on the light emitting surface 211 of the light guide plate, and similarly to fig. 4, the distance between the display panel 10 and the light guide plate 22 is the same as the thickness of the adhesive 213, and compared with the prior art, the thickness of at least the portion corresponding to the horizontal wall of the middle frame is omitted, so that the thickness of the entire display panel 10 is reduced.
It should be understood that the middle frame 30 serves to shield the side of the light guide plate 22 and the display panel 10, and thus may have a sidewall structure. Alternatively, the side wall structure may be formed by directly bending a part of the structure of the back plate 24 without the middle frame.
Fig. 6 is a schematic cross-sectional structure view of still another structure of the display device according to the embodiment of the present invention, and as shown in fig. 6, the case where the display panel 10 is mounted only on the mounting end surface 31 is shown, and similarly to fig. 4, the distance between the display panel 10 and the light guide plate 22 is the same as the thickness of the adhesive 213, and compared with the prior art, the thickness of at least the portion corresponding to the horizontal wall of the middle frame is omitted, so that the thickness of the entire display panel 10 is reduced.
In the embodiment of the present invention, the middle frame 30 of the backlight module is located at the side of the light guide plate 22, the middle frame 30 includes a panel fixing portion 32 extending out of the light guide plate 22, and a surface of the panel fixing portion 32 facing the back of the display panel 10 is a mounting end surface 31.
By positioning the mounting end face 31 on the middle frame 30 and positioning the middle frame 30 at the side of the light guide plate 22 in this manner, the range of the display panel 10 can be made to correspond to the entire range of the light guide plate 22 when at least part of the structure of the display panel 10 is fixed to the middle frame 30.
In one possible embodiment, the middle frame 30 may extend along the top and side ends of the light guide plate 22, in other words, the extending direction of the middle frame 30 corresponds to the extending direction of the top and side ends of the light guide plate 22, so that the top and side ends of the display panel 10 may be fixed on at least one of the mounting end surface 31 and the light emitting surface 211 of the light guide plate.
No extra structural parts are provided at the top and side ends of the display device, so that the top and side ends of the display panel 10 can be directly fixed to the middle frame 30, so that the sizes of the top and side portions of the display device can be reduced as much as possible, which is advantageous for the miniaturization of the entire display device.
As a further alternative, referring to fig. 3 and 4, the light guide plate 22 may be fixed on the back plate 24, for example, the light guide plate 22 is adhered to the back plate 24 by a structural adhesive. Generally, a reflective sheet 23 is further disposed on the back surface of the light guide plate 22, and the reflective sheet 23 reflects light emitted from the light source, so that the availability of the backlight module to light rays can be increased.
Further, the panel fixing portion 32 of the center frame 30 is fixed to the back plate 24. For example, the back surface of the panel fixing portion 32 may be detachably fixed to the back plate 24 by a fastener such as a screw, and the panel fixing portion 32 may be attached to the back plate 24, so that the panel fixing portion 32 is fixed to the back plate 24 without providing another member between the panel fixing portion 32 and the back plate 24, and the size of the display device in the thickness direction may be reduced as much as possible.
In other examples, the middle frame 30 may be integrally formed with the back plate 24, which may reduce assembly man-hours and cost.
In one possible embodiment, the middle frame 30 further includes a side wall portion 33, the side wall portion 33 is connected to the panel fixing portion 32, and the side wall portion 33 is disposed at a side of the display panel 10 and the light guide plate 22. This arrangement allows the side wall 33 of the bezel 30 to shield the side portions of the light guide plate 22, the display panel 10, and the like.
In the embodiment of the invention, the bottom end of the display panel 10 has a different structure from the top and side ends, and the COF 11 is disposed at the bottom end of the display panel, so the bottom end of the display panel 10 has a slightly different fixing form from the other three sides.
Fig. 7 is a partially enlarged schematic view of a part B of fig. 3. Referring to fig. 7, the bottom end of the display panel 10 is fixed to the light guide plate 22.
As described above, since the COF 11 and the like are connected to the bottom end of the display panel 10, it is considered that the bottom end of the display panel 10 is directly fixed to the light guide plate 22, and compared with a structure in which the bottom end of the display panel 10 is provided on a rubber frame or an intermediate frame, the structure of the rubber frame or the intermediate frame is not provided between the display panel and the light guide plate, and thus the number of parts of the display device can be reduced and the thickness of the display device can be reduced.
In one possible embodiment, for the light source 40 and the heat dissipation plate 60 included in the backlight module, the light source 40 may be disposed at a side surface of the light guide plate 22, for example, the light emitting direction of the light source 40 faces the light incident surface of the light guide plate 22, the heat dissipation plate 60 is used for dissipating heat of the light source 40, and the cover portion 65 is disposed on the heat dissipation plate 60, and the cover portion 65 may cover the back plate 24, the bottom of the light guide plate 22 and the light source 40.
The heat dissipation plate 60 is wrapped outside the bottom end of the back plate 24, and compared with the case that the heat dissipation plate 60 is located between the back plate 24 and the light guide plate 22, the thickness of the heat dissipation plate 60 is at least omitted between the back plate 24 and the light guide plate 22, so that the distance between the back plate and the light guide plate is reduced, and the thickness of the whole display device is further reduced. Even if the heat sink 60 covers the outside of the back plate 24, the heat sink 60 is disposed only in a partial area of the bottom of the display device, and therefore the thickness of the heat sink is less affected.
In the embodiment of the present invention, an LED light bar may be selected as the light source 40, and the LED light bar may extend along the bottom end of the light guide plate 22, so as to illuminate the entire length range of the bottom end of the light guide plate 22.
In one possible embodiment, the heat dissipation plate 60 may extend along a bottom end of the light guide plate 22, and the heat dissipation plate 60 includes:
a first wall portion 61, the first wall portion 61 being located at a side of the light guide plate 22 and the back plate 24; and
a second wall part 62, wherein the second wall part 62 is connected with the first wall part 61 and fixed on the surface of the back plate 24 facing away from the light guide plate 22;
and a third wall part 63, wherein the third wall part 63 is positioned on the side of the light guide plate 22 away from the back plate 24, and the third wall part 63, the first wall part 61 and the second wall part 62 form a cover part together.
Since the structure of the plastic frame is removed from the bottom end of the display device, the heat dissipation plate 60 is provided in the shape of a cover to enclose the bottom end of the light guide plate 22, the bottom end of the display device, and the like.
It will be appreciated that the end of the third wall part 63 should be spaced from the adhesive 213 to avoid entering the corresponding range of the display area of the display panel 10. In addition, the height of the surface of the third wall part 63 facing the front case 50 may be less than or equal to the height of the display surface of the display panel 10. This does not affect the mounting of the front shell.
In one possible embodiment, the COF 11 at the bottom end of the display panel 10 may be covered outside the bottom end of the heat dissipation plate 60. This is because the heat sink 60 has the cover portion 65 covering the bottom end of the back plate 24 from the outside of the back plate 24, and therefore the COF can be provided only outside the heat sink 60.
In the embodiment of the present invention, the display device further includes a driving board 64 for driving the display panel 10, the driving board 64 is disposed on the back surface of the heat dissipation plate 60, and the driving board 64 is electrically connected to the COF 11.
In addition, as described above, the optical film 21 included in the backlight module is disposed between the display panel 10 and the light guide plate 22, the optical film 21 is used to improve the front brightness of the display panel 10, and the adhesive 213 layer may be disposed around the outer side of the optical film 21. Thus, the adhesive 213 does not affect the operation of the optical film 21.
Note that the distance between the display panel 10 and the light guide plate 22 is greater than or equal to the thickness of the optical film 21. So that the optical film 21 can be smoothly installed between the display panel 10 and the light guide plate 22.
The present embodiment provides a display device including: a display panel for image display; the backlight module provides a backlight source for the display panel, the backlight module comprises a light guide plate for homogenizing light, the light guide plate comprises a light emergent surface, the backlight module further comprises an installation end surface located on the side of the light guide plate, the installation end surface faces the display panel, the installation end surface is lower than the light emergent surface of the light guide plate or the installation end surface is flush with the light emergent surface of the light guide plate, and the display panel is installed on at least one of the light emergent surface and the installation end surface of the light guide plate. Since the display panel is mounted on at least one of the light-emitting surface and the mounting end surface of the light guide plate, and the height of the mounting end surface is less than or equal to the height of the light-emitting surface of the light guide plate, the distance between the display panel and the light guide plate is at least reduced by the thickness of the portion corresponding to the horizontal wall of the middle frame compared with the prior art, and thus the thickness of the whole display panel is reduced.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A display device, comprising:
a display panel for image display; and
the backlight module provides a backlight source for the display panel;
the backlight module includes:
the light guide plate is used for homogenizing light and comprises a light emergent surface; and
a mounting end face which is positioned at the side of the light guide plate and faces the display panel, wherein the mounting end face is lower than the light emergent face of the light guide plate or is flush with the light emergent face of the light guide plate,
the display panel is mounted on at least one of the light emitting surface and the mounting end surface of the light guide plate.
2. The display device according to claim 1,
the backlight module further comprises a middle frame located on the side of the light guide plate, the middle frame comprises a panel fixing part extending out of the light guide plate, and the surface of the panel fixing part facing the back of the display panel is the installation end face.
3. The display device according to claim 2,
the middle frame extends along the top end and the side end of the light guide plate, and the top end and the side end of the display panel are fixed on at least one of the installation end face and the light emitting face of the light guide plate.
4. The display device according to claim 3,
the bottom end of the display panel is fixed on the light guide plate.
5. The display device according to any one of claims 2 to 4,
the backlight module further comprises a back plate, the light guide plate is fixed on the back plate, and the panel fixing part of the middle frame is fixed on the back plate.
6. The display device according to claim 5,
the middle frame further comprises a side wall part, the side wall part is connected with the panel fixing part, and the side wall part is arranged on the side of the display panel and the side of the light guide plate in a blocking mode.
7. The display device according to claim 5,
the backlight module further comprises:
the light emitting direction of the light source faces to the light incident surface of the light guide plate; and
the heat dissipation plate is used for dissipating heat of the light source, and a cover portion is arranged on the heat dissipation plate to cover the back plate, the bottom of the light guide plate and the light source.
8. The display device according to claim 7,
the heat dissipation plate extends along the bottom end of the light guide plate, and the heat dissipation plate includes:
a first wall portion located at a side of the light guide plate and the back plate;
the second wall part is connected with the first wall part and is fixed on the surface of the back plate, which is far away from the light guide plate; and
a third wall portion located on a side of the light guide plate facing away from the back plate, the third wall portion forming the cover with the first wall portion and the second wall portion.
9. The display device according to any one of claims 1 to 4,
the display panel is fixed on at least one of the installation end face and the light emitting face of the light guide plate through an adhesive.
10. The display device according to claim 9,
the backlight module further comprises an optical film arranged between the display panel and the light guide plate, the optical film is used for improving the front brightness of the display panel, and the adhesive is arranged on the outer side of the side portion of the optical film in a surrounding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051925.4A CN111258114A (en) | 2020-01-17 | 2020-01-17 | Display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051925.4A CN111258114A (en) | 2020-01-17 | 2020-01-17 | Display device |
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| CN111258114A true CN111258114A (en) | 2020-06-09 |
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| CN202010051925.4A Pending CN111258114A (en) | 2020-01-17 | 2020-01-17 | Display device |
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Application publication date: 20200609 |