TWI703386B - Backlight module - Google Patents

Abstract

A backlight module is provided. The backlight module includes a light-emitting module, a support frame, a diffusion plate and a light guide. The light-emitting module is disposed onto a substrate for emitting light. The support frame includes a first support portion, an oblique portion, a bearing portion and a second support portion that sequentially connected. The first support portion is disposed adjacent to the light-emitting module. The diffusion plate is disposed onto the bearing portion for receiving light, and an area of the diffusion plate that bears on the bearing portion is formed as a bearing area. The light guide is disposed at least one of the oblique portion and the bearing portion, so that the light is emitted toward the bearing area. Thereby, the backlight module solves the problem of a dark band around a screen of a display.

Description

Backlight module

The present invention relates to the technical field of a display. Specifically, the present invention relates to a backlight module that can improve the problem of dark bands at the edges of the display surface of the display.

As the requirements for resolution, narrow bezels, and other specifications continue to increase, the optical configuration in the display device is also tested.

Traditionally, the backlight modules of display devices can be roughly divided into two types: edge-lit type and direct-lit type; among them, the direct-lit type backlight modules are mostly surrounded by mechanical parts to form a platform to use the platform to carry Components such as diffuser, optical film and display panel. A reflector is usually placed on the wall surface of this mechanism to reflect light to the diffuser and avoid possible color patterns or uneven surface (MURA) problems. However, due to the aforementioned structural configuration, the diffuser is placed on the platform of the mechanism The upper part or area, it is not easy for light to be introduced, thus forming a dark band visually. Therefore, dark bands are generated around the display device, and as the side width becomes narrower, the dark bands generated by the platform are more easily detected, which may cause problems in use.

In summary, the inventor of the present invention has designed a backlight module to improve on the shortcomings of the existing technology, thereby enhancing the industrial application.

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a backlight module to improve the problem of dark bands at the edges of the display surface of the display.

According to the above objective, the present invention provides a backlight module, which includes a substrate, a light-emitting module, a support frame, a diffuser, and an auxiliary light guide module. The light emitting module is arranged on the substrate, and the light emitting module emits light. The supporting frame is located at least on one side of the light-emitting module; the supporting frame has a first supporting portion, an oblique portion, a bearing portion, and a second supporting portion; and the oblique portion, the supporting portion, and the second supporting portion face away from the light-emitting module The directions are arranged in sequence; wherein the oblique portion is connected with the first supporting portion, the bearing portion is connected with the oblique portion, and the oblique portion is connected with the second supporting portion. The diffuser plate is supported on the bearing part, and the area where the diffuser plate bears on the bearing part is formed as a bearing area. Wherein, the oblique portion or the carrying portion is provided with an auxiliary light guide module to receive light and guide the light to the bearing area.

According to the above objective, the present invention provides another backlight module, which includes a substrate, a light emitting module, a support frame, a diffuser, a reflector, and an auxiliary light guide module. The light-emitting module is disposed on the substrate, and the light-emitting module includes a plurality of first light-emitting units, and the first light-emitting units emit first light. The support frame is located at least on one side of the light-emitting module; the support frame has a first support portion, an oblique portion, a bearing portion, and a second support portion, and the first support portion is adjacent to the light-emitting module, and the oblique portion , The carrying part and the second supporting part are arranged in sequence toward the direction away from the light emitting module; wherein the oblique part is connected with the first supporting part, the carrying part is connected with the oblique part, and the oblique part is connected with the second supporting part. The diffuser plate bears on the bearing portion, and the diffuser plate receives the first light, and the area where the diffuser plate bears on the bearing portion forms a bearing area. The reflecting sheet is arranged on the oblique part and located on the surface of the oblique part adjacent to the diffuser plate. The reflecting sheet covers the surface of the oblique part adjacent to the diffuser plate; the reflecting sheet receives the first light and reflects the first light to the diffuser plate. The auxiliary light guide module is arranged at the oblique part to receive the first light and guide the first light to the bearing area.

According to the above objective, the present invention provides yet another backlight module, which includes a substrate, a light emitting module, a support frame, a diffuser, a reflector, and an auxiliary light guide module. The support frame has the first The supporting part, the oblique part, the carrying part and the second supporting part; wherein the oblique part is connected with the first supporting part, the carrying part is connected with the oblique part, and the oblique part is connected with the second supporting part. The light-emitting module is arranged on the substrate, and the light-emitting module includes a plurality of first light-emitting units and a plurality of second light-emitting units; the first light-emitting units emit a first light, and the second light-emitting units emit a third light. Light, and the second light-emitting units are arranged between the first support portion and the second support portion. The diffuser plate bears on the bearing portion, and the area where the diffuser plate bears on the bearing portion forms a bearing area, and the area outside the bearing area of the diffuser plate receives the first light. The reflective sheet is arranged on the oblique portion and located on the surface of the oblique portion adjacent to the diffuser plate; the reflective sheet covers the surface of the oblique portion adjacent to the diffuser plate, and the reflector sheet receives the first light and reflects the first light to the diffuser plate. The auxiliary light guide module is arranged on the carrying part to receive the third light and guide the third light to the supporting area. Wherein, the first supporting portion is adjacent to the first light-emitting units, and the oblique portion, the carrying portion and the second supporting portion are sequentially arranged in a direction away from the first light-emitting units.

Preferably, the light-emitting module has a plurality of first light-emitting units, and the first light-emitting units are arranged in a predetermined manner. When the auxiliary light guide module is disposed at the inclined portion, one end of the auxiliary light guide module receives the The light from the first light-emitting unit, and the light is transmitted from the other end of the auxiliary light guide module to the supporting area.

Preferably, the light-emitting module further includes a plurality of compensation light-emitting units, the compensation light-emitting units replace part of the first light-emitting units of the peripheral portion arranged in the predetermined manner, and the compensation light-emitting units emit light from the side One end of the auxiliary light guide module receives the light from the first light-emitting units and the light from the side of the compensation light-emitting units.

Preferably, one end of the auxiliary light guide module is provided with a light receiving portion, and the light receiving portion extends from the first support portion toward the first light emitting units and protrudes from the first support portion.

Preferably, the light-emitting module has a plurality of first light-emitting units, the first light-emitting units are arranged in a predetermined manner, and the first support portion is adjacent to the first light-emitting units. When the auxiliary light guide module is arranged When the carrying portion is used, the light emitting module further includes a plurality of second light emitting units, and the second light emitting units are arranged between the first support portion and the second support portion.

Preferably, the auxiliary light guide module has a first surface, the first surface faces the second light-emitting units to receive light, and the light is transmitted by a second surface of the auxiliary light guide module opposite to the first surface Conduct to the bearing area.

Preferably, the surface of the auxiliary light guide module has a microstructure part, and the surface of the auxiliary light guide module faces the light emitting module.

The backlight module and display of the present invention can at least have the following advantages:

(1) In the backlight module and display of the present invention, the oblique part of the support frame is provided with a light guide or as a light guide, so that it can be used in the first light-emitting unit of the light-emitting module that must be used originally. The light can guide the light to the supporting area of the diffuser, and improve the problem of the dark band on the edge of the display surface of the display.

(2) In the backlight module and display of the present invention, the carrying part of the support frame is provided with a light guide or as a light guide, and the second light-emitting unit is arranged at a position corresponding to the carrying part, thereby enabling light Guide the supporting area of the diffuser to improve the problem of dark bands on the edge of the display surface of the display.

1: Backlight module

11: Pedestal

111: substrate

12: Light-emitting module

121: The first light-emitting unit

122: Compensation light unit

123: second light-emitting unit

13: Support frame

131: First support

132: oblique part

1321: Microstructure Department

1322: Light receiving part

1323: first opening

133: Bearing Department

1331: The first surface of the bearing part

1332: The second surface of the bearing part

1333: second opening

134: second support

14: diffuser

141: Anchor Area

15: reflective sheet

16: auxiliary light guide module

A: Imaginary midline

L: light

L1: First light

L2: second light

L3: third ray

X: first direction

Y: second direction

P1: Display panel

P2: Optical diaphragm

FIG. 1 is a schematic diagram of a partial cross-sectional structure of the first embodiment of the backlight module of the present invention.

FIG. 2 is a schematic diagram of the first structure of the second embodiment of the backlight module of the present invention.

FIG. 3 is a schematic diagram of the second structure of the second embodiment of the backlight module of the present invention.

FIG. 4 is a schematic cross-sectional structure diagram of the third embodiment of the backlight module of the present invention.

FIG. 5 is a schematic cross-sectional structure diagram of the fourth embodiment of the backlight module of the present invention.

FIG. 6 is a schematic structural diagram of the fifth embodiment of the backlight module of the present invention.

FIG. 7 is a schematic structural diagram of the sixth embodiment of the backlight module of the present invention.

FIG. 8 is a schematic structural diagram of the seventh embodiment of the backlight module of the present invention.

In order to understand the technical features, content and advantages of the present invention and its achievable effects, the present invention is described in detail in the form of embodiments with accompanying drawings as follows. The figures used therein are only For the purpose of illustrating and supplementing the description, it may not be the true proportions and precise configuration after the implementation of the present invention. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited to the scope of rights of the present invention in actual implementation. Narrate.

In the drawings, the thickness or width of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “connected to” or “disposed on” another element, it can be directly on or in conjunction with another element. One element is connected, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. "Connect" as used herein Or "setting", which can refer to a physical and/or electrical connection or setting. In addition, if the terms "first", "second", and "third" are used for descriptive purposes only, they cannot be understood as indicating or implying relative importance or their sequential relationship.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have meanings commonly understood by those skilled in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

Please refer to FIG. 1, which are respectively partial cross-sectional structural diagrams of the first embodiment of the backlight module of the present invention. The backlight module 1 is applied to a display, especially a direct-lit backlight display, and the display can be applied to a computer monitor, a television, a monitor or a car host, especially a flat-panel display or a curved display. As shown in the figure, the backlight module 1 mainly includes a base 11, a light emitting module 12, a supporting frame 13 and a diffuser 14.

Among them, a substrate 111 is fixed in the base 11. Wherein, the substrate 111 may be a printed circuit board, on which is further provided with circuits related to light emission or control, and the substrate 111 may be fixed in the base 11 by means of locking or snapping. The light-emitting module 12 is disposed on the substrate 111, and the light-emitting module 12 includes a plurality of first light-emitting units 121, and the first light-emitting units 121 are arranged on the substrate 111 in a predetermined manner, for example, corresponding to the display panel P1 of the display and the optical Related elements such as the diaphragm P2 or the diffuser 14 are arranged in an array. The first light-emitting units 121 may be light-emitting diodes to emit light L toward the first direction X.

In addition, the support frame 13 can be made of plastic or other materials, which is arranged in the base 11 and surrounds or at least partially surrounds the first light-emitting units 121; that is, the support The frame 13 is located at least on one side of the light-emitting module 12. The supporting frame 13 has a first supporting portion 131, an oblique portion 132, a supporting portion 133 and a second supporting portion 134 integrally formed. As for the supporting frame 13, one ends of the first supporting portion 131 and the second supporting portion 134 bear against the bottom wall of the base 11, and the side surface of the second supporting portion 134 bears against the side wall of the base 11. In addition, one end of the supporting portion 133 is connected to the other end of the second supporting portion 134, and the oblique portion 132 is connected between the other end of the first supporting portion 131 and the other end of the supporting portion 133. That is to say, the first supporting portion 131 and the second supporting portion 134 may be parallel to each other and along the first direction X, and the first supporting portion 131 is shorter than the second supporting portion 134; wherein, the oblique portion 132 extends obliquely toward the end of the second supporting portion 134 that does not bear against the bottom wall of the base 11, and then connects to the supporting portion 133 along the second direction Y, so that the supporting portion 133 can stably carry objects. Wherein, the second direction Y is perpendicular to the first direction X.

In addition, the diffuser plate 14 is supported on the supporting portion 133 to receive the light L of the first light-emitting unit 121. It is worth mentioning that, since the diffuser plate 14 bears against the area of the carrying portion 133, it is formed as a supporting area 141, which is shielded by the supporting portion 133, so that the supporting area 141 cannot directly receive the light-emitting unit 121 Light L. To this end, the inclined portion 132 or the carrying portion 133 is provided with an auxiliary light guide module 16 to receive the light L from the light emitting module 12 and to transmit the light L to the bearing area 141 to improve the possibility of the bearing area 141 being darkened. With the problem.

In this embodiment, the support frame 13 can be made of plastic material, etc., through an injection molding process and integrally formed; wherein, the oblique portion 132 can be provided as a transparent or translucent light guide auxiliary by using two-material injection molding or the like. The light guide module 16, of course, the aforementioned method of arranging the oblique portion 132 with the auxiliary light guide module 16 can also be that the entire support frame 13 is made of a transparent or semi-transparent material, and the oblique portion is sprayed or painted. 132 becomes the auxiliary light guide module 16. Since in this embodiment, the oblique portion 132 of the support frame 13 is provided as an auxiliary light guide module 16, it can be light-emitting The light L of the first light-emitting unit 121 of the module 12 can cause the light L to enter from an end of the oblique portion 132 of the auxiliary light guide module 16 adjacent to the first light-emitting unit 121, and pass through the auxiliary light guide module The inclined portion 132 of the 16 is transmitted, so that the light L can be transmitted from the end of the inclined portion 132 of the auxiliary light guide module 16 adjacent to the supporting portion 133 to the supporting area 141 of the diffuser plate 14, thereby improving the display of the display The problem with the dark band on the edge of the face.

It is worth mentioning that in the foregoing, the end surface (ie, the surface) of the oblique portion 132 adjacent to one end of the first light-emitting unit 121 may be provided with a microstructure portion 1321, which can help to receive the light L.

In addition, in order to avoid the color pattern or uneven surface (MURA) problem caused by the reflected light source, a reflective sheet 15 may be provided on the outer surface of the oblique portion 132. However, the reflective sheet 15 should not cover the end surface of the oblique portion 132 or partially expose the end of the oblique portion, so as to ensure that the light L can enter the oblique portion 132 which is the auxiliary light guide module 16 so as to remain The light L can be transmitted to the supporting area 141 of the diffusion plate 14.

Please refer to FIGS. 2 and 3 together, which are the first schematic diagram and the second schematic diagram of the second embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components is roughly similar to the foregoing, and the similarities are not repeated here.

It is worth mentioning that, as shown in the figure, the light-emitting module 12 further includes a plurality of compensation light-emitting units 122. Wherein, the first light-emitting units 121 may be light-emitting diodes to emit the first light L1 toward the first direction X, and the compensation light-emitting unit 122 may be light-emitting diodes, and the difference from the first light-emitting unit 121 is that the compensation The light-emitting unit 122 has a function of side-lighting. That is, the compensation light emitting unit 122 can not only emit the first light L1 toward the first direction X, but also emit the second light L2 toward a direction perpendicular or different from the first direction X. Of course, in different In an implementation aspect, the compensation light-emitting unit 122 may also be a light-emitting diode that can only emit the second light L2 in a direction perpendicular or different from the first direction X.

Furthermore, the first light-emitting units 121 are arranged in an array on the substrate 111 in a manner that covers the area corresponding to the display panel, optical film or diffuser of the display and other related elements of the display. The compensation light-emitting unit 122 is arranged in the periphery of the plurality of first light-emitting units 121 to replace part of the first light-emitting unit 121. Also, the compensation light emitting unit 122 is arranged in a predetermined number of intervals. For example, among the first light-emitting units 121 in the outermost circle, every other, two, or even five first light-emitting units 121 may be substituted for the first light-emitting units 121 with the compensation light-emitting units 122. However, the above quantitative descriptions are only illustrative, so the above cannot be regarded as limitations.

In this embodiment, by replacing part of the first light-emitting unit 121 with a compensating light-emitting unit 122 that can emit light from the side, the light from the first light-emitting unit 121 can be matched with the light of the compensating light-emitting unit 122 to The first light L1 and the second light L2 are transmitted to the supporting area 141 of the diffuser plate 14 to more reliably improve the problem of dark bands at the edges of the display surface of the display.

Please refer to FIG. 4, which is a schematic cross-sectional structure diagram of the third embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components is roughly similar to the foregoing, and the similarities are not repeated here.

It should be particularly noted that one end of the oblique portion 132 that is the auxiliary light guide module 16 may be provided with a light receiving portion 1322 extending from the first supporting portion 131 toward the first light emitting unit 121. That is to say, the light receiving part 1322 is arranged on the oblique part in a manner similar to the eaves The connection between the 132 and the first supporting portion 131 can be closer to the first light-emitting unit 121 to facilitate receiving the light L.

Of course, the end surface (surface) of the light receiving part 1322 may be provided with the microstructure part 1321. Incidentally, the light receiving portion 1322 in this embodiment can also be applied to the second embodiment described above to be closer to the first light emitting unit 121 and the compensation light emitting unit 122, so as to facilitate the reception as shown in Figure 2. The first light L1 and the second light L2 are shown.

In this embodiment, by arranging the oblique portion 132 of the supporting frame 13 as the auxiliary light guide module 16 and further extending the light receiving portion 1322, the efficiency of receiving the light L can be increased.

Please refer to FIG. 5, which is a schematic cross-sectional structure diagram of the fourth embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components not specifically mentioned is similar to the foregoing, and the similarities are not repeated here.

As shown in the figure, in the present embodiment, the support frame 13 can also be made of plastic material through a general injection molding process or a two-material injection molding process. Particularly, in this embodiment, the supporting frame 13 is configured to set the supporting portion 133 as a transparent or semi-transparent auxiliary light guide module 16 that can guide light; of course, the supporting portion 133 is configured to be the auxiliary light guide module 16 The method can also be that the entire support frame 13 is made of a transparent or translucent material, and the carrying portion 133 is formed by spraying paint or the like to form the auxiliary light guide module 16.

On the other hand, the light emitting module 12 may include a plurality of second light emitting units 123, and the second light emitting units 123 may be light emitting diodes like the first light emitting unit 121. In addition, these second light emitting units 123 are disposed between the first support portion 131 and the second support portion 134. In other words, when viewed from a top view, the second light-emitting units 123 can be arranged in the shape of a “mouth”.

With the above structure and component configuration, the supporting portion 133 of the auxiliary light guide module 16 faces the first surface 1331 of the second light emitting unit 123, which can properly receive the third light L3 of the second light emitting unit 123, and The third light L3 of the second light emitting unit 123 is transmitted to the supporting area 141 from the second surface 1332 of the supporting portion 133 relative to the first surface 1331. Therefore, in this embodiment, the third light L3 can also be transmitted to the supporting area 141 of the diffuser plate 14, thereby improving the problem of dark bands at the edges of the display surface of the display.

It is worth mentioning that in different embodiments, the first surface 1331 of the supporting portion 133 of the auxiliary light guide module 16 may have a midpoint of the distance between the oblique portion 132 and the second supporting portion 134 The imaginary centerline A, and the second light-emitting unit 123 can preferably be located on the imaginary centerline A to appropriately provide the third light L3. Incidentally, the end surface (surface) of the first surface 1331 may be provided with the aforementioned microstructure part.

In addition, in the above embodiments, only the inclined portion 132 or the supporting portion 133 is used as the auxiliary light guide module 16 for description. However, in different embodiments, it can also use the oblique portion 132 and the first supporting portion 131 as the auxiliary light guide module 16 at the same time, which will be described in the following embodiments; or, it can use the carrying portion 133, The oblique portion 132 and the first supporting portion 131 serve as the auxiliary light guide module 16; even, the entire support frame 13 is made of light-guiding material and the entire support frame 13 is used as the auxiliary light guide module 16. Therefore, the above-mentioned exemplary aspects cannot be limited.

Please refer to FIG. 6, which is a schematic structural diagram of the fifth embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components not specifically mentioned is similar to the foregoing, and the similarities are not repeated here.

The main difference between this embodiment and the previous embodiments is that although the support frame 13 can also be made of plastic material, etc., which are integrally formed through a general injection molding process, etc. The first supporting portion 131, the oblique portion 132, the supporting portion 133 and the second supporting portion 134. In the portion of the oblique portion 132, the oblique portion 132 may have one or more first openings 1323. The backlight module 1 in this embodiment further includes auxiliary light guide modules 16 corresponding to the number of first openings 1323. That is, in this embodiment, the auxiliary light guide module 16 may be an element made of light-guiding materials, and the auxiliary light guide module 16 is disposed in the first opening by means such as snapping, tight fitting, or gluing. In 1323.

In this embodiment, the inclined portion 132 is further provided as an auxiliary light guide module 16, so that it can also use the light L of the first light-emitting unit 121 of the light-emitting module 12 to make the first light-emitting unit 121 The light L from the auxiliary light guide module 16 enters the end adjacent to the first light-emitting unit 121, and is transmitted by the auxiliary light guide module 16, so that the light L of the first light-emitting unit 121 can pass through the auxiliary light guide module 16 An end adjacent to the supporting portion 133 is guided to the supporting area 141 of the diffuser plate 14 to improve the problem of dark bands on the edge of the display surface of the display.

Of course, the light receiving part in the foregoing embodiment can also be used in this embodiment. In addition, in FIG. 5, in order to clearly show the first opening 1323 and the auxiliary light guide module 16, the reflective sheet 15 is omitted. Furthermore, the light receiving part in the foregoing embodiment can also be used in this embodiment. In the same way, the compensation light emitting unit 122 in the foregoing embodiment is also used in this embodiment. Therefore, it should not be limited only by the aspect disclosed in this embodiment.

Please refer to FIG. 7, which is a schematic structural diagram of the sixth embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components not specifically mentioned is similar to the foregoing, and the similarities are not repeated here.

In the same way as the foregoing embodiment, the support frame 13 can also be made of plastic material, etc., and is integrally formed by a general injection molding process, etc., and has a first support portion 131, an inclined portion 132, a bearing portion 133, and a second support portion. 134. And in the part of the carrying part 133, the carrying part 133 may have one or more second openings 1333. The backlight module 1 in this embodiment also includes auxiliary light guide modules 16 corresponding to the number of second openings 1333. That is, in this embodiment, the auxiliary light guide module 16 may be an element made of a light-guiding material, and the light-guiding material may be transparent plastic, acrylic, etc. Wherein, the auxiliary light guide module 16 is disposed in the second opening 1333 in a manner such as snapping, tight fitting or gluing.

Thereby, the auxiliary light guide module 16 faces the first surface of the second light-emitting unit 123, which can properly receive the third light L3 of the second light-emitting unit 123, and the third light L3 of the second light-emitting unit 123 is transmitted The second surface of the auxiliary light guide module 16 relative to the first surface is conducted to the supporting area 141. Therefore, in this embodiment, the third light L3 can also be guided to the supporting area 141 of the diffuser plate 14, thereby improving the problem of dark bands at the edges of the display surface of the display.

Among them, in Figure 7, in order to clearly show the second opening 1333 and the light guide 16, the diffuser 14 and the reflective sheet 15 are omitted.

In addition, it is worth mentioning that in different embodiments, components may not be provided in the second opening 1333, and the second opening 1333 may be directly used as an auxiliary light guide module to facilitate the second light-emitting unit 123 The third light L3 can pass through the carrying portion 133 through the second opening 1333 and be received by the diffuser 14 to improve the problem of dark bands at the edges of the display surface of the display.

Although in the above embodiment, the first support portion 131 and the second support portion 134 are taken along the first direction X as an exemplary aspect, in different embodiments, the first support portion 131 and the second support portion 134 may also In order not to be along the first direction X or not to be parallel to each other, it is only necessary to provide stable support, so the above-mentioned exemplary aspect should not be a limitation.

Please refer to FIG. 8, which is a schematic structural diagram of the seventh embodiment of the backlight module of the present invention. In this embodiment, the configuration or connection relationship of the components not specifically mentioned is similar to the foregoing, and the similarities are not repeated here.

As shown in the figure, in this embodiment, the support frame 13 is made of a transparent or semi-transmissive material with the inclined portion 132 and the carrying portion 133 at the same time as the auxiliary light guide module 16 and the auxiliary guide One end of the oblique portion 132 of the light module 16 may be provided with a light receiving portion 1322 extending from the first supporting portion 131 toward the first light emitting unit 121.

Therefore, in this embodiment, the inclined portion 132 as the auxiliary light guide module 16 can receive the first light L1 of the first light-emitting unit 121 and the third light L3 of the second light-emitting unit 123, and serve as an auxiliary light guide The carrying portion 133 of the module 16 can receive the third light L3 of the second light-emitting unit 123, so that the first light L1 and the third light L3 can be transferred through the oblique portion 132 and the supporting portion 133 of the auxiliary light guide module 16 Conducted to the supporting area 141 of the diffuser plate 14. In this way, the problem of dark bands at the edges of the display surface of the display can be more improved.

The above description is only illustrative, and not restrictive. Any equivalent modifications or alterations that do not depart from the spirit and scope of the present invention should be included in the scope of the attached patent application.

1: Backlight module

11: Pedestal

111: substrate

12: Light-emitting module

121: The first light-emitting unit

13: Support frame

131: First support

132: oblique part

1321: Microstructure Department

133: Bearing Department

134: second support

14: diffuser

141: Anchor Area

15: reflective sheet

16: auxiliary light guide module

L: light

X: first direction

Y: second direction

P1: Display panel

P2: Optical diaphragm

Claims (11)

A backlight module comprising: a substrate; a light-emitting module arranged on the substrate to emit a light; a support frame at least on one side of the light-emitting module, the support frame having a first support Portion, an oblique portion, a supporting portion, and a second supporting portion, and the first supporting portion is adjacent to the light emitting module, and the oblique portion, the supporting portion, and the second supporting portion face away from the light emitting mold The directions of the groups are arranged in sequence, wherein the oblique portion is connected with the first supporting portion, the bearing portion is connected with the oblique portion, and the oblique portion is connected with the second supporting portion; a diffuser plate is supported on The bearing portion and the area where the diffuser plate bears against the bearing portion forms a bearing area; wherein, the inclined portion or the bearing portion is provided with an auxiliary light guide module to receive the light and direct the light toward The bearing area conducts; wherein the surface of the auxiliary light guide module has a microstructure part, and the surface of the auxiliary light guide module faces the light emitting module. The backlight module described in the first item of the scope of patent application, wherein the light-emitting module has a plurality of first light-emitting units, and the first light-emitting units are arranged in a predetermined manner, and when the auxiliary light guide module is set in When the inclined portion is used, one end of the auxiliary light guide module receives the light from the first light-emitting units, and the light is transmitted from the other end of the auxiliary light guide module to the bearing area. The backlight module according to the second item of the scope of patent application, wherein the light-emitting module further includes a plurality of compensation light-emitting units, and the compensation light-emitting units replace parts of the peripheral parts arranged in the predetermined manner and the first light-emitting units , The compensation light The unit emits the light from the side, and one end of the auxiliary light guide module receives the light from the plurality of first light-emitting units and the light from the side of the compensation light-emitting units. According to the backlight module described in claim 1, wherein the light-emitting module has a plurality of first light-emitting units, the first light-emitting units are arranged in a predetermined manner, and the first support portion is adjacent to the The first light-emitting units, when the auxiliary light guide module is disposed on the supporting part, the light-emitting module further includes a plurality of second light-emitting units, and the second light-emitting units are disposed on the first supporting part and the Between the second support. The backlight module according to claim 4, wherein the auxiliary light guide module has a first surface facing the second light-emitting units to receive the light, and the light is transmitted by The auxiliary light guide module is conducted to the bearing area relative to a second surface of the first surface. A backlight module includes: a substrate; a light-emitting module arranged on the substrate, and the light-emitting module includes a plurality of first light-emitting units, and the first light-emitting units emit a first light; The support frame is located at least on one side of the light-emitting module. The support frame has a first support portion, an oblique portion, a bearing portion, and a second support portion, and the first support portion is adjacent to the light-emitting module , And the oblique portion, the supporting portion and the second supporting portion are sequentially arranged in a direction away from the light emitting module, wherein the oblique portion is connected to the first supporting portion, and the supporting portion is connected to the oblique portion , And the oblique portion is connected with the second supporting portion; A diffuser plate is supported on the carrying portion, and the diffuser plate receives the first light, and the area where the diffuser plate bears on the carrying portion forms a bearing area; a reflective sheet is arranged on the inclined The surface of the oblique portion adjacent to the diffuser plate; the reflective sheet covers the surface of the oblique portion adjacent to the diffuser plate; the reflective sheet receives the first light and reflects the first light To the diffuser plate; and an auxiliary light guide module, which is arranged on the oblique portion to receive the first light and make the first light be transmitted to the bearing area. As for the backlight module described in claim 6, wherein the first light-emitting units are arranged in a predetermined manner, one end of the auxiliary light guide module receives the first light from the first light-emitting units, and The first light is guided from the other end of the auxiliary light guide module to the bearing area. The backlight module according to claim 7, wherein the light-emitting module further includes a plurality of compensation light-emitting units, and the compensation light-emitting units replace parts of the peripheral parts arranged in the predetermined manner and the first light-emitting units The compensation light-emitting units emit a second light from the side, and one end of the auxiliary light guide module receives the first light of the plurality of first light-emitting units and the compensation light-emitting units emitted from the side The second light. The backlight module according to item 6 of the scope of patent application, wherein one end of the auxiliary light guide module is provided with a light receiving part, and the light receiving part is directed toward the first light emitting units from the first support part Extends and protrudes from the first support portion. A backlight module includes: a substrate; A supporting frame has a first supporting portion, an oblique portion, a bearing portion and a second supporting portion, wherein the oblique portion is connected to the first supporting portion, and the bearing portion is connected to the oblique portion, The oblique portion is connected to the second supporting portion; a light emitting module is disposed on the substrate, and the light emitting module includes a plurality of first light emitting units and a plurality of second light emitting units, the first The light-emitting unit emits a first light, the second light-emitting units emit a third light, and the second light-emitting units are arranged between the first supporting portion and the second supporting portion; a diffuser plate, supporting The area leaning against the supporting portion and the diffusion plate leaning against the supporting portion forms a supporting area, and the area outside the supporting area of the diffusion plate receives the first light; a reflection sheet is provided At the oblique portion and located on the surface of the oblique portion adjacent to the diffuser plate, the reflective sheet covers the surface of the oblique portion adjacent to the diffuser plate, and the reflective sheet receives the first light and reflects the The first light reaches the diffuser; and an auxiliary light guide module is disposed on the supporting portion to receive the third light and conduct the third light to the supporting area; wherein the first supporting portion is adjacent to In the first light-emitting units, the oblique portion, the carrying portion and the second supporting portion are sequentially arranged in a direction away from the first light-emitting units. The backlight module of claim 10, wherein the auxiliary light guide module has a first surface, the first surface faces the second light-emitting units to receive the third light, and the The third light is guided by a second surface of the auxiliary light guide module relative to the first surface to the bearing area.

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