CN204229087U - A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator - Google Patents

A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator Download PDF

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Publication number
CN204229087U
CN204229087U CN201420752851.7U CN201420752851U CN204229087U CN 204229087 U CN204229087 U CN 204229087U CN 201420752851 U CN201420752851 U CN 201420752851U CN 204229087 U CN204229087 U CN 204229087U
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China
Prior art keywords
conducting plate
light conducting
vertical
light guide
bearer bar
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CN201420752851.7U
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Chinese (zh)
Inventor
刘宇飞
魏长春
金文峰
翟明
金亨奎
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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Priority to CN201420752851.7U priority Critical patent/CN204229087U/en
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Abstract

The utility model discloses a kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator, wider with the frame solving liquid crystal display module in prior art, be unfavorable for the problem realizing narrow frame liquid crystal display product.Described light guide plate, comprises light conducting plate body and bearer bar; Described light conducting plate body comprises relative exiting surface and transparent surface and the multiple sides being connected described exiting surface and transparent surface; The horizontal wall that described bearer bar comprises vertical wall, extended to the inner side of described bearer bar by described vertical wall, described horizontal wall comprises the first surface of contact, fits in the edge of described first surface of contact and described exiting surface; Described vertical wall comprises the second surface of contact be connected with described first surface of contact, fits in each described side of described second surface of contact and described light conducting plate body.

Description

A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator
Technical field
The utility model relates to technical field of liquid crystal display, particularly relates to a kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator.
Background technology
Available liquid crystal display device includes liquid crystal display module.As shown in Figure 1, liquid crystal display module comprises display panels 100 and backlight module 200, and display panels 100 comprises polaroid 101, color membrane substrates 102, array base palte 103 and lower polaroid 104; Backlight module 200 comprises prism 201, lower prism 202, diffusion sheet 203, light guide plate 204, reflecting plate 205 and backboard 206; Backboard 206 has four sides barricade 209, arranges glue frame 208 in barricade 209, the accommodation space that each barricade 209 of backboard 206 is formed, and display panels 100 to be placed in this accommodation space and to be fixed on glue frame 208 by double sticky tape 207.
But, liquid crystal display module of the prior art, its frame W is the region outside the A/A of viewing area, the part frame W2 that frame W exceeds display panels 1 primarily of the frame W1 of display panels 1, backlight module 2 determines jointly, based on this kind of structure, the frame of liquid crystal display module cannot reduce again, is therefore unfavorable for the realization of narrow frame liquid crystal display product.
Utility model content
The purpose of this utility model is to provide a kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator, wider with the frame solving liquid crystal display module in prior art, is unfavorable for the problem realizing narrow frame liquid crystal display product.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provides a kind of light guide plate, comprises light conducting plate body and bearer bar;
Described light conducting plate body comprises relative exiting surface and transparent surface and the multiple sides being connected described exiting surface and transparent surface;
The horizontal wall that described bearer bar comprises vertical wall, extended to the inner side of described bearer bar by described vertical wall, described horizontal wall comprises the first surface of contact, fits in the edge of described first surface of contact and described exiting surface; Described vertical wall comprises the second surface of contact be connected with described first surface of contact, fits in each described side of described second surface of contact and described light conducting plate body.
In the utility model embodiment; described light guide plate has bearer bar; described bearer bar comprises vertical wall and horizontal wall; described horizontal wall fits in the exiting surface of described light conducting plate body; for providing the position with display panels fixed bonding; and the edge of the exiting surface of described light conducting plate body is protected, described vertical wall is fitted the side of described light conducting plate body, thus realizes protecting the side of described light conducting plate body.When the described light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced.
Preferably, the edge of described exiting surface has multiple projection, described first surface of contact of described horizontal wall has the opening that the described projection in multiple and described light conducting plate body matches, the described protruding wringing fit on described opening and described exiting surface.In the utility model embodiment, by described projection and described opening wringing fit between the edge of the described horizontal wall of described bearer bar and the described exiting surface of described light conducting plate body, make between described light conducting plate body and described bearer bar more fastening.
Preferably, described side has multiple projection, described second surface of contact of described vertical wall has the opening that the described projection in multiple and described light conducting plate body matches, the described protruding wringing fit on described opening and described side.In the utility model embodiment, by described projection and described opening wringing fit between the described vertical wall of described bearer bar and the described side of described light conducting plate body, make between described light conducting plate body and described bearer bar more fastening.
Preferably, the edge of described exiting surface is the step surface to downward-extension, and described first surface of contact of described horizontal wall and described step surface are fitted.In the utility model embodiment, described step surface is conducive to the described horizontal wall of described bearer bar and described light conducting plate body when fitting, and can coordinate tightr, and be beneficial to contraposition.
Preferably, the development length of described vertical wall is greater than the thickness of described light conducting plate body.In the utility model embodiment, described vertical wall has rational development length, thus follow-up coordinate with reflecting plate time, described vertical wall around accommodation space can hold described reflecting plate preferably.
Preferably, one end of described light conducting plate body is also provided with multiple accommodation space for accommodating light source.In the utility model embodiment, light source can be arranged in the accommodation space of described light conducting plate body, can make the more compact structure of backlight module when being applied to backlight module, improves space availability ratio.
Preferably, the material of described light conducting plate body is methymethacrylate, and the material of described bearer bar is solid metallic.
The utility model embodiment beneficial effect is as follows: described light guide plate has bearer bar; described bearer bar comprises vertical wall and horizontal wall; described horizontal wall fits in the exiting surface of described light conducting plate body; for providing the position with display panels fixed bonding; and the edge of the exiting surface of described light conducting plate body is protected; described vertical wall is fitted the side of described light conducting plate body, thus realizes protecting the side of described light conducting plate body.When the described light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, be conducive to the realization of narrow frame liquid crystal display product.
The utility model embodiment provides a kind of backlight module, comprises optics module and reflecting plate, also comprises the described light guide plate that as above embodiment provides, and described light guide plate is arranged between described optics module and described reflecting plate.
Preferably, the described transparent surface of described light conducting plate body fits in the reflecting surface of described reflecting plate, and the end face of the described vertical wall of described bearer bar is concordant with the bottom surface of described reflecting plate.
Preferably, described optics module fits in the described exiting surface of described light conducting plate body, there is a gap with the end face of the described horizontal wall of described bearer bar, and the thickness at the edge of the close described horizontal wall of described backlight module is identical with the thickness of described horizontal wall.
The utility model embodiment beneficial effect is as follows: described light guide plate has bearer bar; described bearer bar comprises vertical wall and horizontal wall; described horizontal wall fits in the exiting surface of described light conducting plate body; for providing the position with display panels fixed bonding; and the edge of the exiting surface of described light conducting plate body is protected; described vertical wall is fitted the side of described light conducting plate body, thus realizes protecting the side of described light conducting plate body.When the described light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, be conducive to the realization of narrow frame liquid crystal display product.
The utility model embodiment provides a kind of liquid crystal display module; comprise display panels; also comprise the described backlight module that as above embodiment provides; described backlight module and described display panels are fixed by Double-sided adhesive tape; described Double-sided adhesive tape adhering liquid LCD panel; the described horizontal wall of bearer bar described at least bonding described backlight module of another side, and the vertical projection of described display panels on described backlight module at the described vertical wall of described bearer bar around in scope.
The utility model embodiment beneficial effect is as follows: described light guide plate has bearer bar; described bearer bar comprises vertical wall and horizontal wall; described horizontal wall fits in the exiting surface of described light conducting plate body; for providing the position with display panels fixed bonding; and the edge of the exiting surface of described light conducting plate body is protected; described vertical wall is fitted the side of described light conducting plate body, thus realizes protecting the side of described light conducting plate body.When the described light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, be conducive to the realization of narrow frame liquid crystal display product.
The utility model embodiment provides a kind of liquid crystal indicator, comprises the described liquid crystal display module that as above embodiment provides.
The utility model embodiment beneficial effect is as follows: described light guide plate has bearer bar; described bearer bar comprises vertical wall and horizontal wall; described horizontal wall fits in the exiting surface of described light conducting plate body; for providing the position with display panels fixed bonding; and the edge of the exiting surface of described light conducting plate body is protected; described vertical wall is fitted the side of described light conducting plate body, thus realizes protecting the side of described light conducting plate body.When the described light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, be conducive to the realization of narrow frame liquid crystal display product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the liquid crystal display module of prior art;
The diagrammatic cross-section of the described light guide plate that Fig. 2 provides for the utility model embodiment;
The schematic perspective view of the described light conducting plate body that Fig. 3 provides for the utility model embodiment;
The diagrammatic cross-section of the described bearer bar that Fig. 4 provides for the utility model embodiment;
The schematic perspective view of the described bearer bar that Fig. 5 provides for the utility model embodiment;
The schematic perspective view of the described light conducting plate body of another kind that Fig. 6 provides for the utility model embodiment;
The schematic perspective view of the described bearer bar of another kind that Fig. 7 provides for the utility model embodiment;
The diagrammatic cross-section of the described light guide plate of another kind that Fig. 8 provides for the utility model embodiment;
The schematic perspective view of the described light guide plate that Fig. 9 provides for the utility model embodiment;
The diagrammatic cross-section of the described backlight module that Figure 10 provides for the utility model embodiment;
The diagrammatic cross-section of the described liquid crystal display module that Figure 11 provides for the utility model embodiment.
Embodiment
Be described in detail below in conjunction with the implementation procedure of Figure of description to the utility model embodiment.It should be noted that same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Embodiment one
See Fig. 2; the utility model embodiment provides a kind of light guide plate 4; comprise light conducting plate body 41 and bearer bar 42; light conducting plate body 41 comprises the exiting surface 411 and transparent surface 412 that are oppositely arranged, the horizontal wall 422 that bearer bar 42 comprises vertical wall 421, extended to the inner side of bearer bar 42 by vertical wall 421.See Fig. 3, the schematic perspective view of the light conducting plate body 41 illustrated, light conducting plate body 41 also comprises the multiple sides 413 connecting exiting surface 411 and transparent surface 412.See Fig. 4 and Fig. 5; the horizontal wall 422 that bearer bar 42 comprises vertical wall 421, extended to the inner side of bearer bar 42 by vertical wall 421; horizontal wall 422 comprises the first surface of contact 4221; first surface of contact 4221 is fitted with the edge of exiting surface 411; vertical wall 421 comprises the second surface of contact 4211, second surface of contact 4211 be connected with the first surface of contact 4221 and fits with each side 413 of light conducting plate body 41.
In the utility model embodiment; light guide plate has bearer bar 42; bearer bar 42 comprises vertical wall 421 and horizontal wall 422; horizontal wall 422 fits in the exiting surface 411 of light conducting plate body 41; horizontal wall 422 can provide the position with display panels fixed bonding; and the edge of the exiting surface 411 of light conducting plate body 41 is protected, vertical wall 421 is fitted the side 413 of light conducting plate body 41, protects each side 413 of light conducting plate body 41.When the light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced.
In order to make light conducting plate body 41 coordinate more fastening with bearer bar 42, following structure can be had:
See Fig. 3 and Fig. 5, the edge of exiting surface 411 has multiple protruding 414, the first surface of contact 4221 of horizontal wall 422 has multiple openings 423 matched with projection 414, opening 423 and projection 414 wringing fit on exiting surface 411.In the utility model embodiment, by protruding 414 and opening 423 wringing fit between the horizontal wall 422 of bearer bar and the edge of light conducting plate body 41, make between light conducting plate body 41 and bearer bar 42 more fastening.
See Fig. 6 and Fig. 7, side 413 has multiple protruding 414, and the second surface of contact 4211 of vertical wall 421 has multiple opening 423 matched with the projection 414 on exiting surface 411 edge, opening 424 and projection 414 wringing fit on side 413.In the utility model embodiment, by protruding 414 and opening 423 wringing fit between the vertical wall 421 of bearer bar 42 and the side 413 of light conducting plate body 41, make between light conducting plate body 41 and bearer bar 42 more fastening.
Certainly, also can adopt other wringing fit modes, such as, groove is set at the edge of exiting surface 411, the first surface of contact 4221 of horizontal wall 422 arrange projection, makes the groove wringing fit on this projection and exiting surface 411.Also can carry out comprehensive or other modification to the bearer bar 42 shown in the light conducting plate body 41 shown in Fig. 3 and Fig. 6 and Fig. 5 and Fig. 7, make it to reach the fastening object of cooperation, do not repeat them here.
Preferably, the edge of exiting surface 411 is the step surface 416 to downward-extension, and the first surface of contact 4221 of horizontal wall 422 is fitted with step surface 416.As shown in Figure 8, when exiting surface 411 has step surface 416, the diagrammatic cross-section (Reference numeral is identical with implication in Fig. 2) of light guide plate 4.In the utility model embodiment, when the horizontal wall 422 that step surface 416 is conducive to bearer bar 42 is fitted with light conducting plate body 41, can coordinate tightr, and be beneficial to contraposition.
Preferably, the development length of vertical wall 421 is greater than the thickness of light conducting plate body 41.In the utility model embodiment, vertical wall 421 has rational development length, thus follow-up coordinate with reflecting plate time, vertical wall 421 around accommodation space can hold reflecting plate preferably.
Preferably, one end of light conducting plate body 41 is also provided with multiple accommodation space 415 for accommodating light source.Such as, this accommodation space is the storage tank for accommodating light source; Or this accommodation space is the containing hole for accommodating light source; Or other shapes can the geometric space of accommodating light source.In the utility model embodiment, light source can be arranged in the accommodation space 415 of light conducting plate body 41, can make the more compact structure of backlight module when being applied to backlight module, improves space availability ratio.
Show the schematic perspective view of the light guide plate 4 that light conducting plate body 41 and bearer bar 42 combine based on the bearer bar 42, Fig. 9 shown in the light conducting plate body 41 shown in Fig. 3 and Fig. 5, its Reference numeral is see the explanation of Fig. 3 and Fig. 5.The light guide plate that light conducting plate body 41 shown in Fig. 6 and the bearer bar shown in Fig. 7 42 combine has structure similarly, does not repeat them here.It should be noted that, light conducting plate body 41 and bearer bar 42 can prepare separately rear assembling, also can be prepared by integral process.
Preferably, the material of light conducting plate body 41 is methymethacrylate, and the material of bearer bar 42 is solid metallic, and this solid metallic can select the metals such as aluminium, iron or the copper being easy to shaping.
The utility model embodiment beneficial effect is as follows: light guide plate 4 has bearer bar 42; bearer bar 42 comprises vertical wall 421 and horizontal wall 422; horizontal wall 422 fits in the exiting surface of light conducting plate body 41; for providing the position with display panels fixed bonding; and the edge of the exiting surface of light conducting plate body 41 is protected; vertical wall 421 is fitted the side of light conducting plate body 41, thus realizes protecting the side of light conducting plate body 41.When the light guide plate 4 of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, be conducive to the realization of narrow frame liquid crystal display product.
Embodiment two
See Figure 10, the utility model embodiment provides a kind of backlight module 2, comprises optics module 3 and reflecting plate 5, also comprises the light guide plate 4 that as above embodiment provides, light guide plate 4 is arranged between optics module 3 and reflecting plate 5, and the diagram of this light guide plate 4 is referring to figs. 2 to shown in Fig. 9.
Preferably, the transparent surface 412 of light conducting plate body 41 fits in the reflecting surface (unmarked) of reflecting plate 5, and the end face of the vertical wall 421 of bearer bar 42 is concordant with the bottom surface (unmarked) of reflecting plate 5.
Preferably, optics module 3 fits in the exiting surface 411 of light conducting plate body 41, there is a gap 6 with the end face of the horizontal wall 422 of bearer bar 42, and the thickness at the edge of the close horizontal wall 422 of backlight module 2 is identical with the thickness of horizontal wall 422.
Optics module 3 can comprise prism group 31, lower prism group 32 and heat radiator 33 etc., does not repeat them here.
It should be noted that, usually when preparing backlight module 2, just Double-sided adhesive tape 7 is set in its predetermined one side towards display panels, the untapped one side of this Double-sided adhesive tape 7 is blocked, in subsequent technique, removing blocks that namely can to realize with miscellaneous part bonding, does not repeat them here.
The utility model embodiment beneficial effect is as follows: light guide plate 4 has bearer bar 42; bearer bar 42 comprises vertical wall 421 and horizontal wall 422; horizontal wall 422 fits in the exiting surface 411 of light conducting plate body 41; for providing the position with display panels fixed bonding; and the edge of the exiting surface of light conducting plate body 41 is protected; vertical wall 421 is fitted the side of light conducting plate body 41, protects each side 413 of light conducting plate body 41.When the light guide plate 4 of this kind of structure is applied to backlight module 2, coordinating of light guide plate and backboard in prior art can be substituted, thus reduce the frame of backlight module 2, be conducive to the realization of narrow frame liquid crystal display product.
Embodiment three
See Figure 11; the utility model embodiment provides a kind of liquid crystal display module; comprise display panels 1; also comprise the backlight module 2 as embodiment two provides; backlight module 2 and display panels 1 are fixed by Double-sided adhesive tape 7; Double-sided adhesive tape 7 one adhering liquid LCD panels 1, the horizontal wall 422 of bearer bar 42 at least bonding backlight module 2 of another side, and the vertical projection of display panels 1 on backlight module 2 at the vertical wall 421 of bearer bar 42 around in scope.
Display panels 1 can comprise polaroid 11, color membrane substrates 12, array base palte 13 and lower polaroid 14, and liquid crystal (not shown) etc.
Shown in Figure 11, region outside the A/A of viewing area is the frame W of liquid crystal display module, the part frame W2 that this frame exceeds display panels 1 by the frame W1 of display panels 1, backlight module 2 is formed, based on the design of the light guide plate 4 that the present embodiment provides, make to narrow in the obvious comparatively prior art of this part frame W2 of backlight module 2, the frame W of liquid crystal display module is also narrowed.
The utility model embodiment beneficial effect is as follows: light guide plate 4 has bearer bar 42; bearer bar 42 comprises vertical wall 421 and horizontal wall 422; horizontal wall 422 fits in the exiting surface 411 of light conducting plate body 41; for providing the position with display panels 1 fixed bonding; and the edge of the exiting surface of light conducting plate body 41 is protected; vertical wall 421 is fitted the side of light conducting plate body 41, protects each side 413 of light conducting plate body 41.When the light guide plate 4 of this kind of structure is applied to backlight module 2, coordinating of light guide plate and backboard in prior art can be substituted, thus reduce the frame of backlight module 2, further make liquid crystal display module have narrower frame.
Embodiment four
The utility model embodiment provides a kind of liquid crystal indicator, comprises the liquid crystal display module as embodiment three provides.During the utility model is implemented; light guide plate has bearer bar; bearer bar comprises vertical wall and horizontal wall; horizontal wall fits in the exiting surface of light conducting plate body; for providing the position with display panels fixed bonding; and protect the edge of the exiting surface of light conducting plate body, the side of vertical wall laminating light conducting plate body, thus realize protecting the side of light conducting plate body.When the light guide plate of this kind of structure is applied to backlight module, the frame of backlight module can be reduced, thus realize narrow frame liquid crystal display product.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.

Claims (12)

1. a light guide plate, is characterized in that, comprises light conducting plate body and bearer bar;
Described light conducting plate body comprises relative exiting surface and transparent surface and the multiple sides being connected described exiting surface and transparent surface;
The horizontal wall that described bearer bar comprises vertical wall, extended to the inner side of described bearer bar by described vertical wall, described horizontal wall comprises the first surface of contact, fits in the edge of described first surface of contact and described exiting surface; Described vertical wall comprises the second surface of contact be connected with described first surface of contact, fits in each described side of described second surface of contact and described light conducting plate body.
2. light guide plate as claimed in claim 1, it is characterized in that, the edge of described exiting surface has multiple projection, described first surface of contact of described horizontal wall has the opening that the described projection in multiple and described light conducting plate body matches, the described protruding wringing fit on described opening and described exiting surface.
3. light guide plate as claimed in claim 1, it is characterized in that, described side has multiple projection, described second surface of contact of described vertical wall has the opening that the described projection in multiple and described light conducting plate body matches, the described protruding wringing fit on described opening and described side.
4. light guide plate as claimed in claim 2 or claim 3, it is characterized in that, the edge of described exiting surface is the step surface to downward-extension, and described first surface of contact of described horizontal wall and described step surface are fitted.
5. light guide plate as claimed in claim 4, it is characterized in that, the development length of described vertical wall is greater than the thickness of described light conducting plate body.
6. light guide plate as claimed in claim 4, it is characterized in that, one end of described light conducting plate body is also provided with multiple accommodation space for accommodating light source.
7. light guide plate as claimed in claim 1, it is characterized in that, the material of described light conducting plate body is methymethacrylate, and the material of described bearer bar is solid metallic.
8. a backlight module, comprises optics module and reflecting plate, it is characterized in that, also comprises the light guide plate as described in any one of claim 1 to 7, and described light guide plate is arranged between described optics module and described reflecting plate.
9. backlight module as claimed in claim 8, it is characterized in that, the described transparent surface of described light conducting plate body fits in the reflecting surface of described reflecting plate, and the end face of the described vertical wall of described bearer bar is concordant with the bottom surface of described reflecting plate.
10. backlight module as claimed in claim 8; it is characterized in that; described optics module fits in the described exiting surface of described light conducting plate body; there is a gap with the end face of the described horizontal wall of described bearer bar, and the thickness at the edge of the close described horizontal wall of described backlight module is identical with the thickness of described horizontal wall.
11. 1 kinds of liquid crystal display modules; comprise display panels; it is characterized in that; also comprise the backlight module as described in any one of claim 8 to 10; described backlight module and described display panels are fixed by Double-sided adhesive tape; described Double-sided adhesive tape adhering liquid LCD panel; the described horizontal wall of bearer bar described at least bonding described backlight module of another side, and the vertical projection of described display panels on described backlight module at the described vertical wall of described bearer bar around in scope.
12. 1 kinds of liquid crystal indicators, is characterized in that, comprise liquid crystal display module as claimed in claim 11.
CN201420752851.7U 2014-12-03 2014-12-03 A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator Active CN204229087U (en)

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Application Number Priority Date Filing Date Title
CN201420752851.7U CN204229087U (en) 2014-12-03 2014-12-03 A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal indicator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360541A (en) * 2014-12-03 2015-02-18 京东方科技集团股份有限公司 Light guide plate, backlight module, liquid crystal display module and liquid crystal display device
WO2019206113A1 (en) * 2018-04-28 2019-10-31 京东方科技集团股份有限公司 Display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360541A (en) * 2014-12-03 2015-02-18 京东方科技集团股份有限公司 Light guide plate, backlight module, liquid crystal display module and liquid crystal display device
WO2019206113A1 (en) * 2018-04-28 2019-10-31 京东方科技集团股份有限公司 Display device

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