Pen-electric backlight source, display device and intelligent mobile terminal

Abstract

The utility model relates to the technical field of stylus backlight sources, and particularly provides a stylus backlight source, a display device and an intelligent mobile terminal.The stylus backlight source comprises a plastic iron reflector plate, a light guide plate, a lower diffusion sheet, a lower brightness enhancement sheet, an upper brightness enhancement sheet, an upper diffusion sheet, shading glue and a light bar; a plurality of fixing notches are formed in the lower bent edges, and the lamp strip is located between the bottom side plate and the light guide plate; the light bar, the reflector plate and the light guide plate are adhered to the bottom plate; the stylus battery backlight source further comprises a white strip, the white strip adheres to the end face, facing the bottom plate, of the lower bent edge, and the lower diffusion light source end adheres to the light guide plate through the white strip. The brightness enhancement film is provided with a plurality of lower brightness enhancement lugs corresponding to the fixing notches, and the faces, facing the lower diffusion film, of the lower brightness enhancement lugs are bonded with the white strip. The upper brightness enhancement sheet is provided with a plurality of upper brightness enhancement lugs corresponding to the fixing notches, and the shading glue is bonded to the edge of the upper diffusion sheet and bonded to the lower bent edge and the upper brightness enhancement lugs. The diaphragm fixing effect of the stylus backlight source is improved, and the display uniformity is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of notebook computer backlight, in particular to a notebook computer backlight, a display device and a smart mobile terminal. BACKGROUND

[0002] In order to effectively fix each functional film material, the existing notebook computer backlight often needs to set a film material ear slot on the left and right ridge edges of the glue iron, which makes the notebook computer backlight unable to meet the narrow frame structure requirement. In addition, each functional film material is fixed through the film material ear slot, which causes the displacement of each functional film material in the notebook computer backlight during mechanical drop test or roller test, resulting in white spots or bright lines on the side. At the same time, each functional film material needs to be provided with an ear structure corresponding to the film material ear slot. The light refraction at the ear structure is different from that in the left and right straight edge areas, resulting in uneven brightness around the ear structure on the left and right sides (the sides perpendicular to the edge where the light source is located) of each functional film material.

[0003] Therefore, the existing technology has defects and deficiencies, and needs to be further improved and developed. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the present application aims to provide a notebook computer backlight, a display device and a smart mobile terminal, which aims to solve the problem that the structure of the notebook computer backlight fixing the film material on the left and right edges of the glue iron cannot meet the narrow frame requirement, and the displacement of the film material and the uneven brightness of the notebook computer backlight.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a notebook computer backlight, comprising: a glue iron, and a reflective sheet, a light guide plate, a lower diffusion sheet, a lower light enhancement sheet, an upper light enhancement sheet, an upper diffusion sheet and a light shielding glue arranged on the glue iron in sequence from bottom to top, and a lamp strip located at the side end face of the light guide plate;

[0006] The glue iron comprises a bottom plate and a side frame, the side frame comprises a front side plate, a right side plate, a bottom side plate and a left side plate connected in sequence, the left side plate and the right side plate are arranged as flush edges away from the edges of the bottom plate, and the bottom side plate is provided with a lower bending edge; a plurality of fixing notches are arranged on the lower bending edge, and the lamp strip is located between the bottom side plate and the light guide plate;

[0007] The lamp strip, the reflective sheet and the light guide plate are bonded on the bottom plate;

[0008] The notebook computer backlight further comprises a white strip, the lower diffusion sheet has a lower diffusion light source end close to the bottom side plate, the white strip is bonded on the end face of the lower bending edge facing the bottom plate, and the lower diffusion light source end is bonded on the light guide plate through the white strip;

[0009] The lower light-increasing sheet has a plurality of lower light-increasing tabs corresponding to the fixed notches, and the surface of the lower light-increasing tabs is bonded to the white strip;

[0010] The upper light-increasing sheet has a plurality of upper light-increasing tabs corresponding to the fixed notches, and the light-shielding adhesive is bonded to the edge of the upper diffusion sheet, and to the lower bending edge and the upper light-increasing tabs.

[0011] Optionally, the fixed notches are provided in two groups, and the two groups of fixed notches are located at five equal points of the extension length of the lower bending edge, and the distance from the end of the lower bending edge is one fifth of the extension length of the lower bending edge; the lower light-increasing tabs and the upper light-increasing tabs are correspondingly provided in two groups.

[0012] Optionally, the fixed notches are provided in three groups, and the three groups of fixed notches are located at four equal points of the extension length of the lower bending edge, and the distance from the end of the lower bending edge is one fourth of the extension length of the lower bending edge; the lower light-increasing tabs and the upper light-increasing tabs are correspondingly provided in three groups.

[0013] Optionally, the length of the fixed notches is 5-8mm, and the width of the fixed notches is 1.2-2.8mm.

[0014] Optionally, the white strip comprises a first adhesive layer, a white strip base body and a second adhesive layer arranged in sequence from bottom to top, and the white strip has a first bonding part, an excessive connection part and a second bonding part in sequence along the extension direction, the region of the first adhesive layer at the first bonding part is bonded to the light guide plate, the region of the second adhesive layer at the first bonding part is bonded to the lower diffusion light source end, and the region of the second adhesive layer at the second bonding part is bonded to the lower bending edge and the lower light-increasing tabs.

[0015] Optionally, the notebook computer backlight source further comprises:

[0016] The light strip and the light guide plate close to one end of the light strip are bonded to the bottom plate through the lamp adhesive.

[0017] Optionally, the notebook computer backlight source further comprises: a reflective sheet adhesive sheet for bonding the reflective sheet to the bottom plate.

[0018] Optionally, the notebook computer backlight source further comprises: a light guide plate adhesive sheet for bonding one end of the light guide plate away from the light strip to the bottom plate.

[0019] Another technical solution adopted by the application to solve the technical problem is as follows: a display device comprising a notebook computer backlight source as described above.

[0020] The application solves the technical problem by adopting another technical solution as follows: an intelligent mobile terminal comprising the notebook computer backlight source as described above.

[0021] Beneficial effects:

[0022] The notebook computer backlight source, the display device and the intelligent mobile terminal are provided in the application. The notebook computer backlight source is provided with a plurality of fixing notches on the lower bending edge of the bottom side plate of the side frame of the glue iron, so that the front side plate, the right side plate and the left side plate of the side frame do not need to be provided with notches, and are provided with flush edges, thereby effectively meeting the narrow frame requirement. Meanwhile, the lamp strip and the light guide plate are bonded to the bottom plate, thereby effectively fixing the lamp strip and the light guide plate. The white strip is provided, and the lower diffusion sheet is bonded to the light guide plate through the white strip. The lower light enhancement sheet is bonded to the lower bending edge through the white strip, and the lower light enhancement sheet is bonded to the lower bending edge through the light shielding glue. Meanwhile, the upper diffusion sheet is bonded and fixed. Meanwhile, the fixing notches on the lower bending edge can clamp and limit the lower light enhancement ear sheet and the upper light enhancement ear sheet. Finally, all the components of the notebook computer backlight source can be effectively fixed, and the edges of the notebook computer backlight source except the light source end do not have the problem of uneven brightness, thereby guaranteeing the display effect of the notebook computer backlight source. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a top view of the notebook computer backlight source provided in the application;

[0024] Figure 2 is a top view of the glue iron of the notebook computer backlight source provided in the application;

[0025] Figure 3 is a sectional view of the notebook computer backlight source provided in the application along the length direction;

[0026] Figure 4 is an enlarged view of A part in the notebook computer backlight source provided in the application; Figure 3

[0027] Figure 5 is an enlarged view of B part in the notebook computer backlight source provided in the application; Figure 3

[0028] Figure 6 is a sectional view of the white strip of the notebook computer backlight source provided in the application along the length direction;

[0029] EXPLANATION OF REFERENCE NUMERALS:

[0030] ​​1, notebook backlight; 11, reflector; 12, light guide plate; 13, lower diffusion sheet; 14, lower light enhancement sheet; 15, upper light enhancement sheet; 16, upper diffusion sheet; 17, light blocking glue; 18, lamp strip; 19, white strip; 21, glue iron; 23, bottom plate; 24, side frame; 25, lamp glue; 26, reflector glue sheet; 27, light guide plate glue sheet; 241, front side plate; 242, right side plate; 243, bottom side plate; 244, left side plate; 245, lower bending edge; 246, fixing notch; 191, first adhesive layer; 192, white strip base body; 193, second adhesive layer; 194, first bonding part; 195, excess connecting part; 196, second bonding part; 41, lower light enhancement ear piece; 51, upper light enhancement ear piece. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not used to limit the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Please refer to Figures 1 to 5In the first embodiment of the present application, a notebook backlight 1 is provided, comprising a glue iron 21, a white strip 19, a lamp strip 18, a reflecting sheet 11, a light guide plate 12, a lower diffusion sheet 13, a lower light enhancement sheet 14, an upper light enhancement sheet 15, an upper diffusion sheet 16 and a light shielding glue 17. The reflecting sheet 11, the light guide plate 12, the lower diffusion sheet 13, the lower light enhancement sheet 14, the upper light enhancement sheet 15, the upper diffusion sheet 16 and the light shielding glue 17 are sequentially arranged on the glue iron 21 from bottom to top. The lamp strip 18 is located at the side end face of the light guide plate 12. The glue iron 21 comprises a bottom plate 23 and a side frame 24. The side frame 24 comprises a front side plate 241, a right side plate 242, a bottom side plate 243 and a left side plate 244 connected in one piece. The edges of the left side plate 244 and the right side plate 242 away from the bottom plate 23 are arranged as flush edges. The bottom side plate 243 is provided with a lower bent edge 245. The lower bent edge 245 is provided with a plurality of fixed notches 246. The lamp strip 18 is located between the bottom side plate 243 and the light guide plate 12. The lamp strip 18, the reflecting sheet 11 and the light guide plate 12 are bonded to the bottom plate 23. The lower diffusion sheet 13 has a lower diffusion light source end close to the bottom side plate 243. The white strip 19 is bonded to the end face of the lower bent edge 245 facing the bottom plate 23. The lower diffusion light source end is bonded to the light guide plate 12 through the white strip 19. The lower light enhancement sheet 14 has a plurality of lower light enhancement tabs 41 corresponding to the fixed notches 246. The face of the lower light enhancement tabs 41 facing the lower diffusion sheet 13 is bonded to the white strip 19. The upper light enhancement sheet 15 has a plurality of upper light enhancement tabs 51 corresponding to the fixed notches 246. The light shielding glue 17 is bonded to the edges of the upper diffusion sheet 16 and the lower bent edge 245 and the upper light enhancement tabs 51.

[0035] It can be understood that the notebook backlight 1 is provided with a plurality of fixing notches 246 on the lower bending edge 245 of the bottom side plate 243 of the side frame 24 of the glue iron 21, so that the front side plate 241, the right side plate 242 and the left side plate 244 of the side frame 24 do not need to be provided with notches, and are provided with flush edges, thereby effectively meeting the narrow frame requirement. Meanwhile, the lamp strip 18 and the light guide plate 12 are bonded to the bottom plate 23, thereby effectively fixing the lamp strip 18 and the light guide plate 12. The white strip 19 is provided, and the lower diffusion sheet 13 is bonded to the light guide plate 12 through the white strip 19. The lower light enhancement sheet 14 is bonded to the lower bending edge 245 through the white strip 19, and the lower light enhancement sheet 14 is bonded to the lower bending edge 245 through the light shielding glue 17. Meanwhile, the upper diffusion sheet 16 is bonded and fixed. Meanwhile, the fixing notches 246 on the lower bending edge 245 can clamp and limit the lower light enhancement ear sheet 41 and the upper light enhancement ear sheet 51, so that all parts of the notebook backlight 1 can be effectively fixed, and the edges of the notebook backlight 1 except the light source end do not have the problem of uneven brightness, thereby ensuring the display effect of the notebook backlight 1.

[0036] In some preferable embodiments, the number of the fixing notches 246 is set to 2-4 groups, and the number of the lower light enhancement ear sheet 41 and the upper light enhancement ear sheet 51 is correspondingly set to 2-4 groups, thereby ensuring the structural strength of the glue iron 21 and effectively fixing the lower light enhancement sheet 14 and the lower light enhancement sheet 14.

[0037] Specifically, the fixing notches 246 are provided with two groups, and the two groups of fixing notches 246 are located on the five equal points of the extension length of the lower bending edge 245, and the distance from the end of the lower bending edge 245 is one fifth of the extension length of the lower bending edge 245. The lower light enhancement ear sheet 41 and the upper light enhancement ear sheet 51 are correspondingly provided with two groups.

[0038] Meanwhile, the fixing notches 246 are provided with three groups, and the three groups of fixing notches 246 are located on the four equal points of the extension length of the lower bending edge 245, and the distance from the end of the lower bending edge 245 is one fourth of the extension length of the lower bending edge 245. The lower light enhancement ear sheet 41 and the upper light enhancement ear sheet 51 are correspondingly provided with three groups.

[0039] In some preferable embodiments, the length of the plurality of fixing notches 246 is 5-8 mm, and the width of the plurality of fixing notches 246 is 1.2-2.8 mm. Thereby, it can ensure that there is enough space to accommodate the lower light enhancement ear sheet 41 and the upper light enhancement ear sheet 51, and can ensure the structural strength of the glue iron 21.

[0040] Please refer to Figure 4 and Figure 6In some preferable embodiments, the white strip 19 comprises a first adhesive layer 191, a white strip base 192 and a second adhesive layer 193 arranged in sequence from bottom to top, the white strip 19 has a first adhesive part 194, an excess connecting part 195 and a second adhesive part 196 arranged in sequence along the extending direction, the area of the first adhesive layer 191 at the first adhesive part 194 is adhered to the light guide plate 12, the area of the second adhesive layer 193 at the first adhesive part 194 is adhered to the lower diffusion light source end, and the area of the second adhesive layer 193 at the second adhesive part 196 is adhered to the lower bending edge 245 and the lower light enhancement ear piece 41. By arranging the white strip 19 as a double-sided adhesive structure and adhering the white strip 19 to the lower bending edge 245, the lower light enhancement piece 14 and the lower diffusion piece 13 are effectively fixed.

[0041] For reference Figure 5 In some preferable embodiments, the laptop backlight 1 further comprises a lamp adhesive 25, the lamp strip 18 and the end of the light guide plate 12 close to the lamp strip 18 are adhered to the bottom plate 23 through the lamp adhesive 25, the laptop backlight 1 further comprises a reflective sheet adhesive sheet 26, the reflective sheet adhesive sheet 26 is used to adhere the reflective sheet 11 to the bottom plate 23, and the laptop backlight 1 further comprises a light guide plate adhesive sheet 27, the light guide plate adhesive sheet 27 is used to adhere the end of the light guide plate 12 away from the lamp strip 18 to the bottom plate 23. Thus, the fixing effect of the functional films in the laptop backlight 1 is effectively guaranteed, and the display effect of the laptop backlight 1 is guaranteed.

[0042] In the second embodiment of the present application, a display device is also provided, which comprises the laptop backlight 1 provided in the first embodiment of the present application, thus the problem of display unevenness of the display device after falling or collision can be effectively avoided, and the display uniformity of the display device can be improved.

[0043] In the third embodiment of the present application, a smart mobile terminal is also provided, which comprises the laptop backlight 1 provided in the first embodiment of the present application, thus the problem of display unevenness of the smart mobile terminal after falling or collision can be effectively avoided, and the display uniformity of the smart mobile terminal can be improved.

[0044] In summary, the application provides a notebook computer backlight, a display device and a smart mobile terminal. The notebook computer backlight comprises: a glue iron, a reflective sheet, a light guide plate, a lower diffusion sheet, a lower light enhancement sheet, an upper light enhancement sheet, an upper diffusion sheet and a light shielding glue arranged in sequence from bottom to top on the glue iron, and a lamp strip located at a side end surface of the light guide plate. The glue iron comprises a bottom plate and a side frame. The side frame comprises a front side plate, a right side plate, a bottom side plate and a left side plate connected in one piece. The edges of the left side plate and the right side plate away from the bottom plate are arranged as flush edges. The bottom side plate is provided with a lower bent edge. A plurality of fixed notches are arranged on the lower bent edge. The lamp strip is located between the bottom side plate and the light guide plate. The lamp strip, the reflective sheet and the light guide plate are bonded to the bottom plate. The notebook computer backlight further comprises a white strip. The lower diffusion sheet has a lower diffusion light source end close to the bottom side plate. The white strip is bonded to an end surface of the lower bent edge facing the bottom plate. The lower diffusion light source end is bonded to the light guide plate through the white strip. The lower light enhancement sheet has a plurality of lower light enhancement tabs corresponding to the fixed notches. The surface of the lower light enhancement tab facing the lower diffusion sheet is bonded to the white strip. The upper light enhancement sheet has a plurality of upper light enhancement tabs corresponding to the fixed notches. The light shielding glue is bonded to the edges of the upper diffusion sheet and the lower bent edge and the upper light enhancement tabs. The notebook computer backlight is provided with a plurality of fixed notches on the lower bent edge of the bottom side plate of the side frame of the glue iron, so that the front side plate, the right side plate and the left side plate of the side frame do not need to be provided with notches, and are arranged as flush edges, effectively meeting the demand for narrow frame. Meanwhile, the lamp strip and the light guide plate are bonded to the bottom plate, effectively fixing the lamp strip and the light guide plate. The white strip is provided, and the lower diffusion sheet is bonded to the light guide plate through the white strip. The lower light enhancement sheet is bonded to the lower bent edge through the white strip. The lower light enhancement sheet is bonded to the lower bent edge through the light shielding glue. The upper diffusion sheet is bonded and fixed. Meanwhile, the fixed notches on the lower bent edge can clamp and limit the lower light enhancement tabs and the upper light enhancement tabs. Finally, all components of the notebook computer backlight can be effectively fixed, and the edges of the notebook computer backlight except the light source end do not have the problem of uneven brightness, ensuring the display effect of the notebook computer backlight.

[0045] It should be understood that the application of the application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the application.

Claims

1. A notebook backlight source, characterized in that: The notebook computer backlight source comprises a glue iron and a reflective sheet, a light guide plate, a lower diffusion sheet, a lower light enhancement sheet, an upper light enhancement sheet, an upper diffusion sheet and a light shielding glue arranged on the glue iron in sequence from bottom to top, and a lamp strip located at a side end surface of the light guide plate. The glue iron comprises a bottom plate and a side frame, the side frame comprises a front side plate, a right side plate, a bottom side plate and a left side plate connected in sequence, edges of the left side plate and the right side plate away from the bottom plate are arranged as flush edges, the bottom side plate is provided with a lower bent edge, the lamp strip is located between the bottom side plate and the light guide plate. The lamp strip, the reflective sheet and the light guide plate are bonded on the bottom plate. The notebook computer backlight source further comprises a white strip, the lower diffusion sheet has a lower diffusion light source end close to the bottom side plate, the white strip is bonded on an end surface of the lower bent edge facing the bottom plate, and the lower diffusion light source end is bonded on the light guide plate through the white strip. The lower light enhancement sheet has a plurality of lower light enhancement ear pieces corresponding to the fixing notches, and a surface of the lower light enhancement ear piece facing the lower diffusion sheet is bonded with the white strip. The upper light enhancement sheet has a plurality of upper light enhancement ear pieces corresponding to the fixing notches, the light shielding glue is bonded on edges of the upper diffusion sheet, and is bonded on the lower bent edge and the upper light enhancement ear pieces. The fixing notches are provided with two groups, the two groups of fixing notches are located on five equal points of the extension length of the lower bent edge, and the distance from the end of the lower bent edge is one fifth of the extension length of the lower bent edge; the lower light enhancement ear pieces and the upper light enhancement ear pieces are provided with two groups of corresponding fixing notches.

2. The notebook computer backlight of claim 1, wherein, The fixing notches are provided with three groups, the three groups of fixing notches are located on four equal points of the extension length of the lower bent edge, and the distance from the end of the lower bent edge is one fourth of the extension length of the lower bent edge; the lower light enhancement ear pieces and the upper light enhancement ear pieces are provided with three groups of corresponding fixing notches.

3. The notebook computer backlight of claim 1, wherein, The lengths of the fixing notches are 5-8 mm, and the widths of the fixing notches are 1.2-2.8 mm.

4. The notebook computer backlight of claim 1, wherein, The white strip comprises a first adhesive layer, a white strip base and a second adhesive layer arranged in sequence from bottom to top, the white strip has a first bonding part, an over connecting part and a second bonding part in sequence along the extension direction, the first adhesive layer is bonded on the light guide plate at the area of the first bonding part, the second adhesive layer is bonded on the lower diffusion light source end at the area of the first bonding part, and the second adhesive layer is bonded on the lower bent edge and the lower light enhancement ear pieces at the area of the second bonding part.

5. The notebook computer backlight of claim 1, wherein, The notebook computer backlight source further comprises:

6. The notebook computer backlight of claim 1, wherein, A lamp glue, one end of the lamp strip and the light guide plate close to the lamp strip is bonded on the bottom plate through the lamp glue. The notebook computer backlight source further comprises a reflective sheet glue sheet for bonding the reflective sheet on the bottom plate.

7. The notebook computer backlight of claim 1, wherein, The notebook computer backlight source further comprises a light guide plate glue sheet for bonding one end of the light guide plate away from the lamp strip on the bottom plate.

8. The notebook computer backlight of claim 1, wherein, The notebook computer backlight source comprises the notebook computer backlight source according to any one of claims 1-8.

9. A display device, characterized by comprising: The notebook computer backlight source comprises the notebook computer backlight source according to any one of claims 1-8.

10. A smart mobile terminal, characterized by, ​

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