TWI321690B - Liquid ystal display module and scan backlight unit thereof - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display module and a light source used therewith, and more particularly to a liquid crystal display module and a backlight unit thereof. [Prior Art] In a general display, a component that generally includes a color display function, such as a liquid crystal display panel, is required to be disposed under the liquid crystal display panel because the liquid crystal display panel itself does not have a function of emitting light. A backlight unit provides a light source to achieve the displayed power month b. In order to improve the quality of the display surface, the market has the appearance of a Scan backlight unit. In the scanning type backlight unit, the light sources corresponding to different display areas on the liquid crystal panel are turned on at different times according to the display requirements. In general, conventional techniques provide an isolation structure in the scanning backlight unit to separate light sources at different locations to avoid mutual interference between the light source and the light source. FIG. 1 is a schematic view of a conventional brush-type backlight unit. Referring to FIG. 1 , a conventional scanning backlight unit 100 includes a light guide plate 11 〇 a, a light guide plate 11 〇 b, a light source 120 a , a light source 120 b , a reflection sheet 130 , and an isolation structure 140 . The light source 120a is disposed on the right side of the light guide plate 110a, and the light source i2〇b is disposed on the left side of the light guide plate 110b. In addition, the reflective sheet 130 is disposed on the bottom of the light guide plates 110a and 110b, and the isolation structure 140 is disposed between the light guide plate 110a and the light guide plate 110b to separate the light source 120a from the light source 120b. The surface of the isolation structure 140 is typically designed to have good reflectivity for reflecting light incident on the surface of the isolation structure 140 to recover the source 120a, 120b for use in sufficient 1321690 16358 twf.doc/g. The ηί ‘other-side isolation structure is likely to affect the optical effects exhibited by the scanning model. For example,

When 120 a, 120b is lit, the reflection sheet 13 造成 will affect the light emitted by the light guide plates m, ll 〇 b, which may cause uneven light distribution, resulting in unintended brightening of the isolation structure 14 〇 directly above. Pattern. Therefore, it is known that the design of such a backlight unit does not provide a light source from the (four) light source, and the display quality of the liquid crystal display panel is 0 曰/ [invention] In view of the above, it is an object of the present invention to provide a backlight unit which can provide uniformity. The backlight. A further object of the present invention is to provide a liquid crystal display module which provides a uniform backlight by the backlight unit described above and thus has a better quality.

Based on the above or other objects, the present invention provides a backlight unit including a first light guide plate, a second light guide plate, a first light source and a second light source. Wherein the 'first light guide plate has a - top surface, a first bottom surface, a first side surface and a - first light human surface. The first side surface and the first light human face system are connected between the first top surface and the first bottom surface. In addition, the second light guide plate is disposed above the light guide plate, and the first light guide plate has a second top surface, a second bottom surface, at least a second side surface and a second light incident surface. The second side surface and the second light incident surface are connected between the second top surface and the second bottom surface, and the second light incident surface and the first light incident surface are respectively located on opposite sides of the second light guide plate, and The two top surfaces are divided into a first light exit area and a second light exit area 6 16358twf.doc/g field. In response to the above, the first light source is disposed beside the first light incident surface. The first light source is adapted to emit a first light, which is incident on the first light guide plate through the first light incident surface, and then passes through the first top surface and the second bottom surface, and the first light exit region on the second top surface Exit. In addition, the second light source is disposed adjacent to the second light incident surface, wherein the second light source is adapted to emit the second light, which is incident on the second light guide plate via the second light incident surface, and then passes through the second top surface - A light exit area exits. In a preferred embodiment of the present invention, the backlight unit further includes a first diffusion layer and a first reflection sheet, wherein the first diffusion layer is disposed on the first bottom surface of the portion and corresponds to the first light output. a region, wherein the first reflective sheet is disposed beside the first diffusion layer, and the first reflective sheet corresponds to at least the first light exiting region. In a preferred embodiment of the invention, the first reflective sheet further corresponds to the second light exiting region. . In a preferred embodiment of the present invention, the backlight unit further includes a second diffusion layer and a second reflection sheet, wherein the second diffusion layer is disposed on the second bottom surface of the portion and corresponds to the second light exit region. The second reflective sheet is disposed below the second diffusion layer. In a preferred embodiment of the present invention, the backlight unit of the upper cover further includes at least one third reflective sheet disposed adjacent to the first side. In a preferred embodiment of the invention, the third reflective sheet is disposed adjacent to the first side of the first light incident surface. In a preferred embodiment of the present invention, the backlight unit is further packaged, for example, 1321690 16358twf.doc/g

The present invention further provides a liquid crystal display module including, for example, the above-described light pre-70 and liquid crystal display panels, wherein the liquid crystal display panel is disposed above the second top surface of the second light guide plate in the backlight unit. The invention provides a backlight unit, and the money includes recording a light board. Each of the eight light guide plates has a top surface, a bottom surface, a side surface and a light incident surface, and a side surface and a light incident surface are connected between the top surface and the bottom surface, and the light guide plates overlap each other with the top surface facing upward. In addition, a plurality of light exiting regions are defined on the top surface of the uppermost light guide plate.

A light absorbing sheet is disposed on at least one second side. In a preferred embodiment of the invention, the light absorbing sheet is disposed, for example, on a second side opposite to the second light incident surface. In a preferred embodiment of the present invention, the first light source and the second light source are, for example, a cold cathode fluorescent lamp tube or a light emitting diode array. In a preferred embodiment of the present invention, the first light guide plate and the second light guide plate are, for example, a wedge-shaped light guide plate or a flat plate-shaped light guide plate. In response to the above, a plurality of light sources are disposed adjacent to the respective light incident surfaces. Wherein the 'each filament is suitable for emitting light--and the money is incident on the light guide plate corresponding to the surface of the light source, and then the (region) corresponding to the J region in the preferred embodiment of the invention, the backlight The unit includes, for example, a plurality of diffusion layers and a plurality of reflection sheets, each diffusion layer is disposed on each of the bottom surfaces, and each diffusion layer corresponds to each of the light exit regions, and each of the reflection sheets is disposed beside the diffusion layer, and each of the reflection sheets corresponds to at least Each light exit area. In the preferred embodiment of the present invention, the above-mentioned reflective sheet disposed at the bottom of the diffusion layer 8 8 1321690 16358 twf.doc/g corresponds to all of the light exiting regions β. In a preferred embodiment of the present invention, the backlight is as described above. The unit further includes, for example, a plurality of optical films, each of which is disposed beside each side. In the embodiment of the present invention, each of the filament membranes is disposed adjacent to each side of the respective light incident surface. In a preferred embodiment of the invention, the light absorbing sheet and the reflective sheet.

In a preferred embodiment of the invention, the plurality of light sources comprises a cold cathode fluorescent tube or an array of light emitting diodes. In the remainder of the present invention, each of the light guide plates includes a mode light guide plate or a flat plate light guide plate. Further, a liquid crystal display module includes, for example, the above-described back, single 7L and liquid crystal display panels, wherein the liquid crystal display panel is disposed above the top surface of the uppermost light guide plate.

The above-mentioned plurality of optical films include, as described above, the backlight unit of the present invention can achieve the purpose of scanning light-emitting without using an isolation structure, thereby avoiding the problem of uneven illumination of the conventional scanning backlight unit. The f-light unit of the present invention can provide a more uniform light source' and thereby improve the display quality of the liquid crystal display module. The above and other objects, features, and advantages of the present invention will become more apparent. [Embodiment] A liquid crystal display module of the present invention mainly comprises a backlight unit, a liquid crystal display panel and a frame. The backlight unit is mainly provided to provide a backlight.

(D9 1321690 16358twf.doc/g The liquid crystal display panel above the element is a stable and uniform light source, and the backlight unit and the liquid crystal display panel are all disposed in the frame, and the frame is not shown for convenience of description. 3 is a perspective view of a liquid crystal display module according to a preferred embodiment of the present invention, and FIG. 3 is a side view of the liquid crystal display module of FIG. 2. Referring also to FIGS. 2 and 3, the liquid crystal display module of the present invention The backlight unit 210 includes a first light guide plate 220, a first light source 230, a second light guide plate 240, and a second light source 250, and is in backlight. A liquid crystal display panel 260 is disposed above the unit 210 to form a liquid crystal display module 200. The first light guide plate 22 is, for example, a wedge-shaped light guide plate having a first top surface 220a and a first bottom surface 220b. The first side surface 220c and the first light incident surface 220d are connected between the first top surface 22a and the first bottom surface 22%. The light guide plate 240 is a wedge The light guide plate is disposed above the first light guide plate 220, and the second light guide plate 24b has a second top surface 240a, a second bottom surface 24〇b, a plurality of second side surfaces 24〇c and a second The light incident surface 24 〇d, wherein the second side surface 240 is connected to the second light incident surface 24 〇 d between the second top surface 24 〇 a and the second bottom surface 240 b , and the second light incident surface 240 d A light incident surface 22〇d is respectively located on opposite sides of the second light guide plate 240, and the second top surface 24〇& is divided into a first region 10 and a second light exit region 20. The first light source 230 is, for example, a cold cathode fluorescent lamp tube, and the basin is disposed beside the first light incident surface 220d, wherein the first light source 230 can be emitted by the collocation-first reflection ^ 1121690 16358twf.doc/g 232. After the light is collected, the first light incident surface 220d is incident on the first light guide plate 220. The present invention further includes a first diffusion layer 222, a second diffusion layer 242, a first reflective sheet 224, and a first The second reflective layer 228 is disposed on the first bottom surface 220b, for example, and corresponds to the second top surface 24 amp & The first light-emitting region 10. The first diffusion layer 222 is composed of, for example, a plurality of printing dots (not shown), a semi-spherical ball or a cymbal. In general, the printing dot is made of a pigment having high reflectivity characteristics, for example. It is made of titanium oxide, and the ruthenium sheet can increase the correctness of the outgoing light direction, thereby improving the display brightness of the liquid crystal display module 200. Further, at least below the first diffusion layer 222 and corresponding to the first light-emitting area 1 〇, For example, a first reflective sheet 224 can be disposed. The first reflective sheet 224 can be corresponding to the second light exiting region 20 and disposed on the entire first bottom surface 220b (as shown in FIG. 2 ). The first light source of this embodiment. The light emitted by the 230 is reflected by the first diffusion layer 222 and the first reflective sheet 224 to the outside of the first light guide plate 220 after entering the first light guide plate 22 . For example, the first light source 23 〇 can emit, for example, a first light ray 230 a that is incident on the first diffusion layer 222 via the first light incident surface 22 〇 d and passes through the first reflective sheet 224 and the first diffusion layer. After the reflection 222, the second bottom surface 240b is sequentially passed through the first top surface 220a, and finally the first light-emitting area 1 on the second top surface 240a is emitted to the liquid crystal display panel 260 above the second top surface 240a. The display light source of the display portion of the liquid crystal display panel 260 is partially displayed, and the first reflective sheet 224 disposed on the left half of the first light guide plate 220 reflects the light back into the first light guide plate 220 to fully recover the light and reuse it. 1J21690 16358twf.doc/i In addition, in order to improve the reusability of the light source, the present invention can further configure a third reflection sheet 226' on the first side surface 220c of the first light incident surface 220d, for example, so that the remaining light can be The reflection of the third reflective sheet 226 returns to the first diffusion layer 222, and the light is led out by the first diffusion layer 222. Referring to FIG. 2 and FIG. 3 again, the second light source 250 is, for example, a cold cathode fluorescent lamp tube, and disposed adjacent to the second light incident surface 240d, wherein a second reflective cover 252 can be used to send the second light source 250. The light is sufficiently reflected to the second diffusion layer 242. In addition, for example, a second diffusion layer 242 may be disposed on a portion of the second bottom surface 240b and corresponding to the second light exit region 20 on the second top surface 240a. The second diffusion layer 242 is also formed, for example, by a plurality of printed dots (not shown), semi-spherical balls or cymbals, and a second reflective sheet 228 can be disposed under the second diffusion layer 242, for example. The light emitted by the second light source 250 is reflected by the second diffusion layer 242 and the second reflection sheet 228 to the second light guide plate 240 after entering the second light guide plate 240. For example, the second light source 250 can emit a second light ray 250a, which is incident on the second diffusion layer 242 via the second light incident surface 240d, and is guided downward by the second diffusion layer 242 to the second reflective sheet 228. And after being reflected by the second reflection sheet 228, the second light-emitting region 20 on the second top surface 240a is emitted as a display light source as a partial display region of the liquid crystal display panel 260. In addition, in order to prevent the light emitted by the second light source 250 from being emitted from the first light exiting region 10, the present invention may, for example, further arrange a light absorbing sheet 246 on the second side surface 240c opposite to the second light incident surface 24〇d. Of course, the present invention can also configure the light absorbing sheet 246 on the second side 240c of the other position to prevent the portion 12 1321690 16358 twf.doc/g light from directly reflecting upward on the first side 240c, so that the second light exiting area 20 should be a dark area. Light leakage phenomenon. Further, in the first light-emitting region 10 of the second light guide plate Mo, the second reflection sheet 228 is not disposed on the second bottom surface 240b to prevent light from being emitted from the first light-emitting region 1〇. The backlight unit of the present invention illuminates the first light exiting area 丨〇 and the second light exiting area 20 at different time points according to the needs of the liquid crystal display panel 26 〇 display screen. For example, when the first light-emitting area 1 is required to be a bright area and the second light-emitting area 20 is a dark area, the purpose is achieved by lighting the first light source 23 and turning off the second light source 250. After the first light ray 230a is emitted by the first light source 23, the first light ray 23 is applied by the first diffusion layer 222 and the first reflection sheet 224, and sequentially passes through the first top surface 22 〇 a and the second bottom surface. 240b is finally emitted by the first light exiting area 1〇 on the second top surface 24〇a. At this time, the first light exiting area 10 maintains the state of the bright area, and the second light exiting area 20 is a dark area. On the other hand, if the first light-emitting region 10 is to be a dark region and the second light-emitting region 20 is a bright region, the first light source 23A is turned off, and the second light source 250 is turned on. At this time, the light emitted by the second light source 25A can be emitted by the second light-emitting region 20 added by the second top surface 24 by the action of the second expansion layer 242 and the second reflection sheet 228. At this time, the first light-emitting region (7) is in a dark region, and the second light-emitting region 2 is a bright region.值得 It is worth mentioning that although the above embodiment is exemplified by the wedge-shaped first light guide plate 220 and the second light guide plate 240, the light guide plate of the present invention may be a flat plate or other type of light guide plate. In addition, the first light source 230 and the second light source 250 may be, for example, a light emitting diode array or other light source of the type 13 B21690 16358 twf.doc/g. The backlight unit applied to the liquid crystal display module 2 has two light-emitting regions. However, the spirit of the present invention is not limited thereto, and the backlight unit has a plurality of light-emitting regions as needed in actual situations. A backlight unit having four light-emitting areas will be hereinafter described for explanation. 4 is a perspective view of another liquid crystal display module having four light exiting regions according to the present invention, and FIG. 5 is a side view showing the liquid crystal display module of FIG. 4. Referring to FIG. 4 and FIG. 5 simultaneously, another liquid crystal display module 300 of the present invention mainly includes a backlight unit 31 and a liquid crystal display panel 350. The backlight unit 31A mainly includes a plurality of light guide plates (32〇, 322, 324, and 326) and a plurality of light sources (340, 342, 344, and 346), and a liquid crystal display panel 350 is disposed above the backlight unit 310 to form a liquid crystal display panel 350. A liquid crystal display module 300. As described above, the plurality of light guide plates (320, 322, 324, and 326) are, for example, wedge-shaped light guide plates, and of course, may be flat plates or other types of light guide plates, which are not limited herein. Wherein each of the light guide plates (32A, 322, 324 or 326) has a top surface, a bottom surface, at least one side surface and a light incident surface. The lowermost light guide plate 320 is illustrated (refer to FIG. 5), and has a top surface 320a, a bottom surface 320b, at least one side surface 320c and a light incident surface 320d, wherein the side surface 320c and the light incident surface 320d are connected to each other. Between the top surface 320a and the bottom surface 320b. Each of the light guide plates (320, 322, 324, and 326) overlaps each other with the top surfaces (320a, 322a, 324a, and 326a) facing upward, wherein the top surface 326a of the uppermost light guide plate 326 defines a plurality of light exit regions. A, B, C and D. 14 1321690 16358twf.doc / g Further, the present invention further includes, for example, a plurality of diffusion layers (33, say, 334 and 336) and a plurality of reflective sheets 312, in which I see a, 332, 334 and 336) They are respectively disposed on the respective bottom surfaces (3, coffee, dish and 326b) and correspond to the respective light exit regions a, b, and ^d. this

The diffusion layers (10), 332, 334, and 336) are, for example, composed of a plurality of printed dots, semi-spherical balls, or cymbals. In general, pigments utilizing high-reflectivity characteristics, such as titanium oxide, are used. The prism sheet can increase the correctness of the outgoing light direction, thereby improving the display brightness of the liquid crystal display module 3〇〇. Further, each of the reflection sheets 312 is disposed beside each of the diffusion layers (33A, 332, 334, and 336), and each of the reflection sheets 312 corresponds at least to each of the light-emitting regions A, B, C, and D.

Taking the light guide plate 320 as described above, the diffusion layer is disposed on the bottom surface 320b of the light guide plate 320 and corresponds to the light exit area a, and the diffusion layers 332, 334 and 336 are sequentially corresponding to the light exit areas b, C, for example. With D. Further, each of the reflection sheets 312 is disposed under each of the diffusion layers 33A, 332, 334, and 336' and each of the reflection sheets 312 corresponds to at least the respective light-emitting areas A, B, C, and D. However, in order to improve the reusability of the light source, the reflection sheet 312 disposed beside the lowermost diffusion layer 330 may correspond to all of the light exit areas A, B, C, and D. Of course, the light-emitting areas a, B, C, and D corresponding to the respective reflective sheets 312 (excluding the lowermost reflective sheet 312) reflect light out of the respective diffusion layers (330, 332, and 334) without hindering them. The corresponding light-emitting areas A, B, and C may be the principle. In addition, a plurality of optical films 314 can be respectively disposed on the respective sides. 8 16358 twf.doc/g The display panel 350 displays the time points of the light-emitting areas A, B, C蛊D and ~

.^ ^ . , ', D, for example, 'When the light-emitting area A is required to be a party area, and the light-emitting area B and eD are dark light 340 342^344 ^ 346 s After emitting light 340a, the light performance - & The source 340 c οι nine line 340a is caused by the diffusing layer 330 盥 the lowermost reflective sheet 312, and finally the top surface 32 is light and emerges. At this time, the light-emitting area A maintains the light-emitting area A W as a dark area. The state of capture - and the light-emitting area B, =_,, unevenness ==: <,, & uniform and "determined light source. In addition, the backlight unit of the present invention, the need of the situation" to add light-emitting area 'With the display screen: the control of each light-emitting area is a dark area or a bright area, thereby improving the display quality of the liquid crystal display module. Although r,,: the present invention has been disclosed in the preferred embodiment as above, It is not intended to limit the invention, and any person skilled in the art can make some modifications and refinements without departing from the spirit of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a conventional scanning backlight unit. Figure 2 is a perspective view of a liquid crystal display module in accordance with a preferred embodiment of the present invention. 2 is a side view of the liquid crystal display module of the present invention. FIG. 4 is a perspective view of another liquid crystal display module having four light exiting regions according to the present invention. Side view of the liquid crystal display module Figure Main reference numerals 10 _ DESCRIPTION: a first light receiving region 20: second region 100,310 light: the backlight unit

110a, 110b, 320, 322, 324, 326: light guide plates 120a, 120b, 340, 342, 344, 346: light source 130, 312: reflective sheet 140: isolation structure 200, 300: liquid crystal display module 220: first guide Light plate 220a: first top surface 220b: first bottom surface 220c: first side

220d: first light incident surface 222: first diffusion layer 224: first reflective sheet 226: third reflective sheet 228: second reflective sheet 230: first light source 230a: first light ray 232, 252: light tube reflective cover 1321690 16358twf.doc/g 240: second light guide plate 240a: second top surface 240b: second bottom surface 240c: second side surface 240d: second light incident surface. - 242: second diffusion layer 246: light absorbing sheet 250: second Light source® 250a: second light 252: second reflector 260, 350: liquid crystal display panel 314: optical film 330, 332, 334, 336: diffusion layers 320a, 322a, 324a, 326a: top surfaces 320b, 322b, 324b 326b: bottom surfaces 320c, 322c, 324c, and 326c: side surfaces φ 34〇a, 342a, 341⁄2, 346a: light rays A, B, C, D·· light exiting regions 19

Claims (1)

1321690 16358twf.doc/g |-----------j Ijt+ii /] to repair (more) original ten, the scope of application patent: 〆L a backlight unit, including: a first - light guide a first top surface, a first bottom surface, a first side surface, and a first light incident surface, wherein the first side surface and the first light incident surface are connected to the first top surface and the first bottom surface a second light guide plate disposed above the first light guide plate, the second light guide plate having a second top surface, a second bottom surface, a second side surface, and a second light incident surface The second side and the second light incident surface are connected between the second top surface and the second bottom surface, and the second light incident surface and the first light incident surface are respectively located on opposite sides of the second light guide plate And the second top surface is divided into a first light exiting area and a second light exiting area; a second diffusion layer and the first reflective sheet, the first diffusion layer is disposed on the first bottom surface of the portion, Corresponding to the first light-emitting region, the first reflective sheet is disposed beside the first diffusion layer, and the first reflective sheet Corresponding to the first light-emitting region; a first diffusion layer and a first first reflection sheet disposed on the second bottom surface of the portion and corresponding to the second light-emitting region, and the second reflection a first light source disposed adjacent to the first light incident surface, wherein the first light source is adapted to emit a first light through the first light incident surface Incident to the first light guide plate, passing through the first top surface and the second bottom surface, and exiting from the first light exit region on the second top surface; and a second light source disposed on the second light incident Side by side, wherein the second light source is adapted to emit a second light, which is incident on the second light incident surface via the second light incident surface to the second light guide plate, and then through the second top surface/surface The second light exiting area is emitted. 2. The backlight unit of claim 1, wherein the first reflective sheet further corresponds to the second light exiting region. 3. The backlight unit of claim 2, further comprising at least one third reflective sheet disposed adjacent to the first side. 4. The backlight unit of claim 3, wherein the third reflective sheet is disposed adjacent to the first side of the first light incident surface. 5. The backlight unit of claim 2, further comprising a light absorbing sheet disposed on the second side. 6. The backlight unit of claim 5, wherein the light absorbing sheet is disposed on the second side opposite to the second light incident surface. 7. The backlight unit of claim 1, wherein the first light source comprises a cold cathode fluorescent tube or an array of light emitting diodes. 8. The backlight unit of claim 1, wherein the second light source comprises a cold cathode fluorescent tube or a light emitting diode array. 9. The backlight unit of claim 1, wherein the first light guide plate comprises a wedge-shaped light guide plate or a flat plate-shaped light guide plate. 10. The backlight unit of claim 1, wherein the second light guide plate comprises a wedge-shaped light guide plate or a flat plate-shaped light guide plate. A liquid crystal display module, comprising: a backlight unit, comprising: a first light guide plate having a top surface, a first bottom surface, a first side surface and a first light incident surface, wherein the first a side surface and the 21 1321690 16358 twf.doc / g first light incident surface is connected between the first poor surface and the first bottom surface; a second light guide plate disposed above the first light guide plate, the second The light guide plate has a second top surface, a second bottom surface, at least one second side surface and a second light incident surface, wherein the second side surface and the second light incident surface are connected to the second top surface and the first The second light incident surface and the first light incident surface are respectively located on opposite sides of the second light guide plate, and the second top surface is divided into a first light exit region and a second light exit. a first diffusion layer and a first reflection layer disposed on the first bottom surface of the portion and corresponding to the first light exit region, wherein the first reflective sheet is disposed on the first surface Next to the diffusion layer, and the first reflective sheet corresponds to at least the first a second diffusion layer and a second reflection layer disposed on the second bottom surface of the portion and corresponding to the second light-emitting region, wherein the second reflection sheet is disposed on the light-receiving layer a first light source disposed adjacent to the first light incident surface, wherein the first light source is adapted to emit a first light incident through the first light incident surface to the first light guide plate And passing through the first top surface and the second bottom surface, and exiting from the first light exiting area on the second top surface; a second light source disposed beside the second light incident surface, wherein the second light source Suitable for emitting a second light, which is incident on the second light guide plate via the second light incident surface, and then exits through the second light exit region on the second top surface; and 22 1321690, Λ " 16358twf .doc/g ______^ 'Year of the next year, $〇日漫(J1) is replacing the page one LCD panel, which is placed above the second top surface. 12. The liquid crystal according to claim 5, wherein the first reflective sheet further corresponds to the second light exiting region. 13. The liquid crystal display module of claim 12, comprising a third reflective sheet disposed adjacent to the first side. - 14. The liquid crystal of claim 13, wherein the third reflective sheet is disposed adjacent to the first surface of the first light incident sea. The liquid crystal display module according to claim 12, further comprising a light absorbing sheet disposed on the second side. The liquid crystal display mold according to claim 15, wherein the light absorbing sheet is disposed on the second surface of the second light incident surface. The liquid crystal module according to claim 11, wherein the second light source comprises a cold cathode fluorescent lamp tube or a light emitting diode array. The core display module according to the above-mentioned patent application, wherein the first light guide plate comprises a wedge light plate or a flat material light plate. ', 23 16358 twf. doc / g in each of the scattered = e reflection '' each of the diffusion layers are disposed in the respective regions of the first region and each of the light-emitting regions; and each of the reflective sheets corresponds to at least the light source =lighting = not = each of the first incident planes, wherein each of the planes incident on the corresponding light guiding system is incident on the light from which the powder is incident. Leading the board, and then passing the corresponding light-emitting area 21. The first-reflecting sheet next to the diffusion layer at the bottom of the second paragraph of the patent application scope corresponds to the plurality of the plurality of said elements, and further includes: /i valley, the optical film system is disposed in each Beside the side. ^如ΐ料(四)22 rhyme-f-light unit, wherein each " prior to the diaphragm system is disposed adjacent to each side of each of the light-emitting surfaces. 24. The backlight unit as claimed in claim 22, The optical films include a light absorbing sheet and a reflective sheet. The backlight unit of claim 2, wherein the light sources comprise cold cathode fluorescent tubes or arrays of light emitting diodes. The backlight unit of claim 2, wherein the light guide plates comprise a wedge-shaped light guide plate or a flat plate-shaped light guide plate. 27, a liquid crystal display module, comprising: a plurality of light guide plates, respectively having a top surface, a bottom surface, a side surface and a light incident surface, wherein the side surface and the light incident surface are connected to the top surface and 24 16358 twf. Doc/g between the bottoms, each of the light guide plates overlaps each other in a top-up manner, wherein a top surface of the light guide plate is divided into a plurality of light-emitting regions; a plurality of diffusion layers and a plurality of diffusion layers Each of the first reflective sheets is disposed on each of the bottom surfaces ′ and each of the diffusion layers corresponds to each of the light-emitting regions, and each of the first reflective sheets is disposed beside each of the diffusion layers, and each of the reflections is disposed The plurality of light sources are disposed at least adjacent to the light incident surfaces, wherein each of the light sources is adapted to emit a light, and the light is incident on the light incident surface corresponding thereto The corresponding light guide plate is emitted through the corresponding light exit region; and the “: night crystal display panel is disposed above the gas top surface of the uppermost guide plate. The liquid crystal display module of claim 27, wherein the reflective sheet disposed beside the lowermost diffusion layer corresponds to the light exit regions. 29. The liquid crystal display module of claim 28, further comprising a plurality of optical films, each of the optical film systems being disposed beside each of the sides. The liquid crystal display module of claim 29, wherein each of the optical film systems is disposed adjacent to each of the side faces of the light incident surfaces. The liquid crystal display module of claim 29, wherein the optical film comprises a light absorbing sheet and a reflection sheet. 32. The liquid crystal display module as claimed in claim 27, 1321690 The light sources in 16358twf.doc/g include a cold cathode fluorescent tube i-light emitting diode array. The liquid crystal display module of claim 27, wherein the light guide plates comprise a wedge-shaped light guide plate or a flat plate-shaped light guide plate. 26