TW200417795A - Back light module and liquid crystal display - Google Patents

Abstract

A back light module mainly comprised a surface light source, a first black matrix, a second black matrix, a first fluorescent layer and a second fluorescent layer is adapted for providing a colorful double-faced light source. The first black matrix and the second black matrix are respectively disposed on both outer surface of the surface light source. The first black matrix and the second black matrix have a plurality of lattices exposing the both outer surface of the surface light source. The first fluorescent layer and the second fluorescent layer are respectively disposed in the lattices. By using the first fluorescent layer and the second fluorescent layer, the back light module can provide the colorful double-faced light source. In addition, a liquid crystal display mainly comprised two polarizers, two electrode layers, two array substrates, two liquid crystal layers and the back light module mentioned above is provided. The polarizers, the electrode layers, the liquid crystal layers and the array substrates are disposed on both side of the back light module.

Description

200417795 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention " 明 Θ 士 >0; ^ η > said, there is a backlight module (Back Light Module) and a liquid crystal display r τ · It's about. 〇UlQuid Crystal Di splay ‘LCD)’ and especially Oubei i / —A kind of backlight module and application suitable for providing color double-sided light source. [Previous technology] Catch up with ^ Z to cooperate with modern living mode, the volume of video or imaging devices is gradually increasing: ° Traditional cathode ray display (CRT), although it still has its advantages 7 \ 疋 Due to the structure of the internal electronic cavity, the display The volume is huge and the work is difficult, and there are still problems such as radiation injury to the eyes during display. Therefore, the flat display (F 1 at = el Display) developed in cooperation with optical technology and semiconductor manufacturing technology, such as liquid crystal display (lcd), organic light-emitting display or plasma display panel (PDP), has gradually been Become the mainstream of display products. ^ According to the above-mentioned 'in terms of liquid crystal display', depending on the type of light source utilization, each knife is a reflective LCD, a transmissive LCD, and a semi-transparent LCD: Main = type or transflective liquid crystal display: ^ night and day panel and a moonlight module, the φ, yue panel is composed of two transparent substrates and one crystal layer The backlight model & ^^ Tu S 'moxibustion and Youji group is used to provide the Yunxi π source of this liquid crystal panel, so that the liquid crystal display can achieve the effect of suppressing the island to the first. 3 ^ It is a reflective liquid crystal display or 9- 'heart, 疋, operation 8 丨-: ¾ 疋 one of the transparent substrates of the transmissive liquid crystal display LCD panel, 〇 通 ㊉ will be equipped with a color filter film (Color

10651twf.ptd 200417795

F 1 1 ter), so that the liquid crystal display achieves the effect of full-color display. ^ Figure 1 shows the structure of a conventional liquid crystal display. As shown in Figure 1, the liquid crystal display 丨 〇〇 is a + + cry Γ Τ Γ τ — τ, η, ^ 'Shoufuerri day-to-day LCD (TFT LCD), its main system It is composed of a backlight module} 10 and a 120. The backlight module 丨 10 is arranged on the back side of the LCD panel 120, which is relative to the user, and the backlight module 丨 〇 It is composed of a g plate 112, a line light source 114, and a reflecting cover 116. For example, the light guide plate 112 may be a wedge-shaped light guide plate having a light incident surface, two light diffusion surfaces 112b, and a light exit surface ii2c. Reflector 116 is

The light incident surface 11 2 a is next to the light source 114, and the linear light source 114 is disposed in the reflection cover 116. For example, the linear light source 114 described above may be a cold cathode fluorescent lamp (C C F L) or a light emitting diode array suitable for providing white light. The light provided by the linear light source 丨 1 4 can be incident on the light guide plate 112 from the light incident surface 112 &, and then transmitted to the light exit surface 丨 1 2 after being scattered and reflected by the light diffusion surface 1 1 2 b. From the above, it can be known that the light emitted from the light exit surface 2c is a type of white = surface light source, which is used as the light source required for the liquid crystal panel 2 to display. Please continue to refer to FIG. 1. The liquid crystal panel 丨 2 is mainly composed of a thin film substrate TFT array 130, a color filter substrate 14 and a crystal layer 150. The liquid crystal layer 50 is arranged in a thin film transistor array / text

130 and the color filter substrate 140. "" The plate is as shown in Fig. 1. A thin film transistor array substrate is provided with a thin film transistor 132 (Th in Film Transistor, TFT), and a daylight electrode corresponding to each thin film transistor 132. 34 (Pixei ~ electrode). Thin film transistor 丨 32 is composed of gate 132a, channel

10651twf.ptd Page 7 200417795 V. Description of the invention (4) A plastic frame (Sea 1 ant) 1 52 is used to arrange the liquid crystal layer 1 50 therebetween, and multiple gaps can be added in the liquid crystal layer 1 50 15 4 (S pacer) to maintain a gap (Gap) between the thin film transistor array substrate 130 and the color filter substrate 14 0. In addition, the thin film transistor array substrate 300 and the color filter substrate 140 are provided with polarizers 160 and 70 on the outer surfaces of the color filter substrate 140 so that the liquid crystal display 100 can achieve the display effect. It is worth noting that the surface light source projected onto the LCD panel 120 by the backlight module is a white light type. Therefore, the color filter film 144 on the color filter substrate 140 is needed to The white light of the backlight module 丨 is filtered into colored light of various wavelength ranges (such as blue light and red, so that the LCD display achieves a full color effect. In other words, the use of light substrates is to develop the colorization of current LCD displays. Main skills

However, it is not cheap. In addition, the configuration must always be in the coating.) The light film is made outside, and the liquid crystal is made by the thin film transistor. [Inside the invention, due to, there will be a non-color filter to achieve the current general array display capacity.] The manufacturing cost of the light film is lower than the overall price of the liquid crystal display. There is no color filter film and flatness on the substrate. Therefore, the purpose of flattening the color filter film and the black matrix to cover a surface is so complicated. It is also the development of miniaturization that some liquid crystal displays use substrates to sandwich the liquid crystal layer between them. For the sake of brilliance, and the price method further lays down the black matrix on the substrate in the process of making the flat layer (over will increase a burden on color filters. In addition, the color filter substrate and the design framework will be limited to 200417795. V. Description of the invention (5) In view of this, one object of the present invention is to provide a backlight module, which can directly provide a colored double-sided light source, so that the liquid crystal display achieves the effects of full-color and double-sided display. Another object of the present invention The invention provides a liquid crystal display, in addition to achieving the effects of full-color and double-sided display, the production process is simple and does not require a color filter substrate, and the overall volume of the liquid crystal display can be made thinner. The backlight module is suitable for providing a colored double-sided light source. The backlight module is mainly composed of a side light source, a first light-shielding matrix, a second light-shielding matrix, a first camping light layer and a second camping light layer. The surface light source has a first light exit surface and a corresponding second light exit β1 surface; the first light-shielding matrix is arranged on the first light exit surface, and the first light-shielding matrix is The array has a plurality of first lattice points exposing the first light exit surface; the second light-shielding matrix is disposed on the second light exit surface, and the second light-shielding matrix has a plurality of second lattice points exposing the second light exit surface The first fluorescent layer is disposed in the first grid points, and the second fluorescent layer is disposed in the second grid points. The present invention further provides a liquid crystal display, which is mainly composed of a backlight module, It consists of two polarizing films, two electrode layers, two array substrates, and two liquid crystal layers. The backlight module is composed of a surface light source, a first light-shielding matrix, a second light-shielding matrix, a first glare layer, and a second labor. The light source includes a first light emitting surface and a corresponding second light emitting surface. The first light shielding matrix is disposed on the first light emitting surface, and the first light shielding matrix has a plurality of exposed first light. The first grid point on the exit surface; the second light-shielding matrix is disposed on the second light exit surface, and the second light-shielding matrix has a plurality of second grid points on which the second light exit surface is exposed; the first fluorescent layer is disposed on

10651twf.ptd Page 10 200417795 V. Description of the invention (6) These first grid points are arranged, and the second fluorescent layer is arranged within these second grid points. Two polarizing films are respectively disposed on the first fluorescent layer and the second fluorescent layer, two electrode layers are respectively disposed on the polarizing films, two array substrates are disposed on both sides of the backlight module, and two liquid crystal layers are disposed on these Between the array substrate and the backlight module. According to a preferred embodiment of the present invention, the surface light source of the backlight module is composed of a first light guide plate, a second light guide plate, a reflection cover, and a line light source. The first light guide plate has a first light incident surface, the above-mentioned first light exit surface, and a first light diffusion surface; the second light guide plate is disposed below the first light guide plate, and the second light guide plate has a second light incident Surface, the above-mentioned second light emitting surface and a second light diffusing surface, and the first light diffusing surface and the second light diffusing surface each have a plurality of V-shaped notches; the reflecting cover is arranged on the first light incident surface and Next to the second light incident surface; the line light source is arranged in the reflecting cover, and the line light source may be a cold cathode fluorescent lamp tube or a light emitting diode array. In addition, the surface light source of the backlight module may be a cold-cathode flat fluorescent lamp. According to another preferred embodiment of the present invention, the first fluorescent layer and the second fluorescent layer of the backlight module are respectively composed of a plurality of first fluorescent substrates, a plurality of second fluorescent substrates, and a plurality of third fluorescent layers. Light matrix. The first fluorescent substrate is suitable for converting the surface light source into a first color light, such as blue light, the second fluorescent substrate is suitable for converting the surface light source into a second color light, such as red light, and the third The fluorescent substrate is suitable for converting a surface light source into a third color light, such as green light. For example, the arrangement manner of the first fluorescent matrix, the second fluorescent matrix, and the third fluorescent matrix may be a mosaic type, a triangular type, a stripe type, or a four-pixel configuration type.

10651twf.ptd Page 11 200417795 V. Description of the invention (8) Colorization purpose. In addition, “this double-sided coloring system that can provide colorization can be directly integrated with two array substrates” and does not require the construction of a color 滹 2 module to achieve the effect of double-sided display. ~ Nine substrates. In order to make the above and other objects, features, and advantages of the present invention easy to understand, the preferred embodiments will be given below, and will be more clearly explained as follows.丨 Machiguchi, detailed description [Embodiment] FIG. 2 is a schematic diagram of a backlight module according to a preferred embodiment of the present invention. Please refer to FIG. 2. The backlight module 2000 is mainly composed of a source 210 of a paper, a first light-shielding matrix 220, a second light-shielding matrix 240, a surface light, a fluorescent layer 230, and a second It is composed of a fluorescent layer 250. As shown in FIG. 2, the area light source 210 is composed of a first light guide plate gig- a second light guide plate 214, a line light source 216, and a reflection cover 218. The first light guide plate 2 1 2 is, for example, a wedge-shaped light guide plate. The first light guide plate 212 has a first light incident surface 212a, a first light diffusion surface 212b, and a first light exit surface 212c. The light diffusion surface 212b has a plurality of v-shaped notches (visible in the area A in the figure), and the second light guide plate 214 has the same structure as the first light guide plate 212 and is disposed below the first light guide plate 212. The second light guide plate 214 has a first light incident surface 214a, a second light diffusion surface 21 4b, and a second light exit surface 214c. The second light diffusion surface 2 1 4 b also has a plurality of V shapes. Notches (see a, everywhere in the figure). It is worth noting that the first light emitting surface 212c and the second light emitting surface 2i4c are disposed on the opposite side of the backlight module 2000 so that the backlight module 2000 emits a double-sided light source. As shown in FIG. 2 ', the reflecting cover 218 is disposed on the first light incident surface 2i2a and

10651twf.Ptd Page 13 200417795 V. Description of the invention (9) Next to the second light incident surface 214a, and the line light source 216 is arranged in the reflection cover 218. The line light source 2 1 6 is, for example, a cold cathode suitable for providing white light Fluorescent tube (CCFL) or a light emitting diode array. The light provided by the linear light source 2 1 6 described above can be incident on the first light guide plate 212 and the second light guide plate 214 from the first light incident surface 2 1 2 a and the second light incident surface 2 丨 4 a, respectively. After being scattered and reflected by the first light diffusion surface 212b and the second light diffusion surface 214b, they are transmitted to the first light exit surface 212c and the second light exit surface 214c to be emitted. From the above, it can be known that the light emitted from the first light exit surface 212c and the second light exit surface 214c is a type of white double-sided light source, and is used as a light source required for display. 4 As shown in FIG. 2, the first light-shielding matrix 2 2 0 may be a black matrix, which is disposed on the first light-emitting surface 212 c ′, and the first light-shielding matrix 22 has a plurality of exposed first light-emitting surfaces 212 c. The first grid point 222 and the first fluorescent layer 230 are arranged in these two grid points 222. The second light-shielding matrix 240 may be a special matrix, which is disposed on the second light emitting surface 214c, and the second light-shielding matrix 240 has a plurality of second points 242 that expose the second light-emitting surface 214c, and a second fluorescent light. The layer 250 is also disposed in the second grid points 242. The first fluorescent layer 230 described above is composed of a plurality of fluorescent substrates 230a, a plurality of fluorescent substrates 230b, and a plurality of fluorescent substrates 230c. For example, the 'fluorescent substrate 230a is suitable for converting white light emitted from the first light emitting surface 2i2c into a first color light, such as blue light, and the fluorescent substrate 230b is suitable for emitting from the first light emitting surface 21 2c. White light is converted into three and second color light, such as red light, and the fluorescent matrix 23c is adapted to convert white light emitted from the first light exit surface 2 1 2c into a third color light, such as conversion

10651twf.ptd Page 14 200417795 Fifth, the invention description (ίο) is green. In addition, the second fluorescent layer 250 is composed of a plurality of fluorescent substrates 2 50 a, a plurality of fluorescent substrates 2 5 0 b, and a plurality of fluorescent substrates 2 5 0 c, and is similar to the first fluorescent substrate described above. Each of the different fluorescent substrates of the light layer 230 can also convert white light emitted from the second light exit surface 214c into colored light of different colors, which is not described in detail here. In a word, the white light originally emitted from the first light emitting surface 212c and the second light emitting surface 214c passes through the first fluorescent layer 230 and the second fluorescent layer 250, respectively. With the configuration of the different fluorescent substrates, As a result, the surface light source 210 emits colored light of different colors. Therefore, it can be known from the foregoing that the surface light source 2 10 provided by the backlight module 200 is a colorized double-sided light source. Figures 3A-3D are schematic diagrams showing the arrangement of the fluorescent substrates in a preferred embodiment of the present invention. Please refer to Figs. 3A-3D. The fluorescent matrix 23 0a, fluorescent matrix 23 Ob and fluorescent matrix 23 0c of the first fluorescent layer 230, and the fluorescent matrix 250a and fluorescent matrix 250 of the second fluorescent layer 250 are described above. The arrangement of 250b and fluorescent matrix 2 5 0 c can be, for example, mosaic type (see Figure 3 A), diagonal type (see Figure 3 B), stripe type (see Figure 3 c), or Tetracycline configuration (see Figure 3D). FIG. 4 is a schematic structural diagram of a backlight module according to another preferred embodiment of the present invention. As mentioned above, the backlight module of the present invention can provide a colored double-sided light source. Since the two outer surfaces of the surface light source are made with different fluorescent light-emitting substrate i fluorescent layers, the original light source White light is converted into light of different colors. However, those skilled in the art should be able to infer that the surface light source in the embodiment is not limited to emitting white light. As shown in FIG. 4, the line light source 2 1 6 can provide a first color light, such as blue light. And make the light

10651twf.ptd Page 15 200417795 V. Description of the invention (11) " '-"-The source emits blue light on both sides; it is worth noting that the first fluorescent layer 2 30 is arranged on the first light-shielding matrix 2 2 〇 Part of the first grid point 2 2 2, and the second fluorescent light f 2 50 0 is arranged in the part of the second grid point 2 4 2 of the second light-shielding matrix 2 4 0. The first gold light layer 230 is composed of a plurality of fluorescent substrates 230b and a plurality of fluorescent substrates 2 3 0 c 7; wherein the fluorescent base f23〇b is suitable for converting the above blue light into a first color light, for example, by Blue light is converted into red light, and the fluorescent matrix 230c is adapted to convert the above blue light into a third color light, for example, from blue light to green light. The first grid point 222 of the first fluorescent layer 230 is not configured. The blue light can penetrate directly. In addition, the second fluorescent layer 250 is composed of a plurality of fluorescent substrates 250b and a plurality of fluorescent substrates 25c, and is the same as each of the different fluorescent substrates of the above-mentioned glory layer 230. The blue light emitted by the area light source 21 will be converted into color light of other colors (such as red light and green light). Of course, the fluorescent substrate 230b and fluorescent substrate g230c of the above-mentioned first fluorescent layer 230 and the first point 222 without the first fluorescent layer 230, and the fluorescent substrate 250b and fluorescent film of the second fluorescent layer 250 The arrangement of the light matrix 250c and the second grid point 242 without the second fluorescent layer and the layer 250 can also be, for example, mosaic, dihedral, striped, or four-pixel configuration. '' As can be seen from the above, since the surface light source has been designed to emit a kind of colored light, the fluorescent layer disposed in the puppet point can further omit one of the fluorescent substrates, which can simplify and reduce the manufacturing process of the backlight module. cost. In addition, the surface light source 21 shown in Figures 2 and 4 is achieved through the cooperation of the light source 216, the first light guide plate 212, and the second light guide plate 214. However, those skilled in the art should It can be inferred that the face in the embodiment

200417795 V. Description of the invention (12) '---- The light source 210 can also be directly replaced by a cold cathode planar fluorescent lamp (ccffl), and the two outer surfaces of the cold cathode planar fluorescent lamp are respectively made with different fluorescent lights. The fluorescent layer of the substrate can also cause the backlight module to emit colored double-sided light sources. FIG. 5 is a schematic structural diagram of a liquid crystal display according to a preferred embodiment of the present invention. Please refer to FIG. 2 and FIG. 5 together. Since the above-mentioned two light modules 200 can provide a colored double-sided light source, the present invention applies this backlight module 2GG to -transmissive or semi-transparent_ Half indicator in 3 0 0. The status of the LCD display 300 is mainly based on the above-mentioned backlight module, two polarized light sources 310 and 320, two electrode layers 330 and 340, two arrays, plates 3 50 and 36 0, and two liquid crystals. Layers 37 and 38. Among them, the film 310 is disposed on the first camp photoacoustic 2 ,,,,,, ΐ ΓΓΛ Λ '" " 2〇 ° " Yes-common electrode layer, which is disposed on the polarizing film 320, and the other side of the array module 2000, and the substrate 360 is disposed between the backlight module 20. The liquid-layer 38. Arranged on the array substrate 360 and the back ^ ρ. &Quot; J "--^ ^ ^ Ά. ^ First, a thin-film transistor 3 52 (TFT) and a mother-bound film transistor are arranged on the soil plate. 352 pairs of libraries, one of the books Xintai one + body 3 52 are composed of leisure pole 3 仏, chant, zeng " pole 3 54. film-bound transistor 352a through layer 3 52b, source 3 52C and drain 3 52d

200417795 V. Composition of invention description (13). The opening and closing of the channel layer 3 52b is connected to a scanning line to control the communication 3 ... and the source is said. And-data let, when the polar state is asked, at this time, when * 2 'channel layer 3 5 2b is in a conductive state 352c, channel layer display' data will be sequentially passed through the data line, the source, the thin film The electric signal is said to be two / three-horse into the pixel electrode 354. Jane% day mdb ZZ is like a mother who goes to pq Ming +4. It is enough to control each book element ^ 4 evening this A is a prime switch, it can also: Yola: ΐ = trait evil, and then Reach the display effect. '' Yue / 専 犋 transistor 3 5 2 as the driving element to drive electricity;) ¾ layer 310 (ie common electrode sound) 蚩 音 帝 ⑽J 仟 以 职 动 电 # layer) Xingdan Suer pole 3 54 The LCD is twisted between. The element center ": No 'the above-mentioned electrode layer 3 30 (that is, the common electrode) and the drawing f ^ ^ are provided with an alignment film 3 90 and an alignment film 3 56, and alignment is performed by 4 liquid crystal layers 370. In addition, the array substrate The 35 and the backlight module 200 are arranged with a liquid crystal layer 37 through a plastic frame 3 72, and a plurality of gaps 374 can be added in the liquid crystal layer 370 to maintain the array substrate 35 (). The gap between the modules 200. In addition, a polarizer 3 58 is arranged on the outer surface of the array substrate 350, so that the liquid crystal display 300 achieves the display effect. The backlight module 200 is arranged on the other side. The polarizing film 32 °, the electrode layer 340, the array substrate 360, and the liquid crystal layer 380, the detailed internal structure and display method are the same as above, and will not be described in detail here. As mentioned above, this embodiment The backlight module disclosed in FIG. 2 is taken as an example for illustration. Of course, the backlight module disclosed in FIG. 4 can also be used to achieve the same purpose of providing a colored double-sided light source. In addition, this embodiment The backlight module is suitable for active matrix type Tony also crystal display (Active Matrix LCD) and passive matrix liquid crystal display (ρ ^ 3ινε

ZUU41 // ^ V. Description of the invention (14) Matr i X LCD) The electrode layer on c does not know the extension direction of the strip electrode on the electrode group on the substrate, and the above can provide The electronic output of multimedia 7F devices such as double-sided liquid crystal display mobile phones has reduced costs. To sum up, the following advantages are obtained: 1. The source of the present invention is used to display the liquid crystal. The liquid crystal display of the present invention reaches 3. The production of the color-removing filter substrate of the present invention reduces the liquid crystal. In other words: it can be inferred that it is limited to sharing. This layer can also have multiple extension directions. These double-sided light sources are used in display devices. Products are arranged on the back with backlight modules and array substrate electrodes with pixels. In the embodiment of the electrode, the backlight module and the strip electrodes are arranged in the embodiment, and the alignment film is formed on the surface of the strip electrode electrodes of the backlight module perpendicular to the array substrate. The backlight module and the application of this backlight module are becoming more and more widespread. For example, the common dual-screen display and the development and production of the double-sided liquid crystal display module of the present invention can be described as' the backlight module and liquid crystal display of the present invention are at least The backlight module can directly provide a colored double-sided light indicator to achieve full-color effect. The backlight module can be directly integrated with the two array substrates for full-color and double-sided display effects. The backlight module can be directly integrated with the array substrate, which can save the production process of film displays such as color filter films and flat layers, which can be simplified, and the cost is also ^ 4: The backlight module of the present invention can directly The array substrate has a process of attaching a polarizer, so the liquid crystal display is simplified, and the cost is reduced. Bedin-clothing process will be available

10651twf.ptd Page 19 200417795 V. Description of the invention (15) 5. The backlight module of the present invention can be directly integrated with the array substrate, which can eliminate the need for color and light-reflective substrates, so the liquid crystal display will not show the overall volume. Thinner. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application.

10651twf.ptd Page 20 200417795 Brief description of the drawings Figure 1 is a schematic diagram showing a structure of a conventional liquid crystal display; Figure 2 is a schematic diagram showing a structure of a backlight module according to a preferred embodiment of the present invention; 3A-3D are schematic diagrams showing the arrangement of a fluorescent substrate according to a preferred embodiment of the present invention; FIG. 4 is a schematic diagram of the structure of a backlight module according to another preferred embodiment of the present invention, and FIG. FIG. 5 is a schematic structural diagram of a liquid crystal display according to a preferred embodiment of the present invention. [Illustration of Graphical Indications] Φ 100 LCD display Iσ 110 backlight module 112 light guide plate 112a: light incident surface 112b: light diffusion surface 1 12c • light exit surface 114 line light source 116 reflector 120 liquid crystal panel 130 thin film transistor array substrate 132 thin film transistor 132a gate 132b channel layer 132c source

10651twf.ptd Page 21 200417795 Brief description of the drawings 1 3 2 d: Drain 1 3 4: Day electrode 1 4 0: Color filter substrate 1 4 2: Black matrix 1 4 3: Grid point 144: Color filter Thin film 1 4 6: Common electrode layer 1 3 6, 1 4 8: Alignment film 1 5 0: Liquid crystal layer 1 5 2: Plastic frame_ 1 5 4: Spacer 1 6 0, 1 7 0: Polarizer 2 0 0 : Backlight module 2 1 0: Surface light source 2 1 2, 2 1 4: Light guide plates 212a, 214a: Light incident surface 21 2b, 214b: Light diffusion surface 212c, 214c: Light emission surface 2 1 6: Line light source 218: Reflector 丨 2 2 0, 2 4 0 · Light-shielding matrix 2 2 2 · First grid point 2 4 2: Second grid point 2 3 0: First fluorescent layer

10651twf.ptd Page 22 200417795 Brief description of the drawings 2 50: Second fluorescent layers 230a, 230b, 230c > 250a, 250b, 250c: Fluorescent matrix 3 0 0: Liquid crystal display 3 1 0, 3 2 0: Polarizing film 3 3 0, 3 4 0 · Electrode layer 3 5 0, 3 6 0: Array substrate 3 5 2: Thin film transistor 3 5 2 a: Gate, 3 5 2b: Channel layer 3 5 2 c: Source Electrode 3 5 2 d: Drain electrode 3 5 4: Day electrode 3 5 6: Alignment film 3 5 8: Polarizer 3 7 0, 3 8 0: Liquid crystal layer 3 7 2: Plastic frame 3 74: Spacer 3 9 0: alignment film

10651twf.ptd Page 23

Claims (1)

200417795 VI. Scope of patent application1. A backlight module suitable for providing a colorized double-sided light source, the backlight module includes: a surface light source 'the surface light source has a first light exit surface and a corresponding second light exit A first light-shielding matrix disposed on the first light-emitting surface, the first light-shielding matrix having a plurality of first lattice points exposing the first light-emitting surface; a second light-shielding matrix disposed on the first light-emitting matrix The second light-emitting surface, the second light-shielding matrix has a plurality of second lattice points exposing the second light-emitting surface; a first fluorescent layer disposed in the first lattice points; and a second fluorescent The light layer is arranged in the second grid points. · 2. The backlight module according to item 1 of the scope of patent application, wherein the surface light source includes a cold cathode flat fluorescent lamp. 3. The backlight module according to item 1 of the scope of patent application, wherein the surface light source comprises: a first light guide plate, the first light guide plate has a first light incident surface, the first light exit surface, and a first light guide plate. A light diffusion surface; a second light guide plate disposed below the first light guide plate, and the second light guide plate has a second light incident surface, the second light exit surface, and a second light diffusion surface, a reflection A cover is disposed beside the first light incidence surface and the second light incidence surface; and a line light source is disposed inside the reflection cover. 4. The backlight module according to item 2 of the scope of patent application, wherein the first diffusion surface and the second diffusion surface each have a plurality of V-shaped notches. 10651twf.ptd Page 24 200417795 6. Application for patent scope 5. The backlight module as described in item 2 of the patent application scope, wherein the line light source includes a cold cathode labor lamp tube, a light emitting diode array- -〇6. The backlight module according to item 1 of the scope of patent application, wherein the first fluorescent layer and the second fluorescent layer respectively include: a plurality of first fluorescent substrates adapted to convert the surface light source Is a first color light; a plurality of second fluorescent substrates is suitable for converting the surface light source into a second color light; and a plurality of third fluorescent substrates is suitable for converting the surface light source into a third color light. 7. The backlight module according to item 6 of the scope of the patent application, wherein the arrangement of the first fluorescent substrate, the second fluorescent substrate and the third fluorescent substrate is mosaic, triangular State, stripe type, tetrahedral configuration type. 8 · The backlight module according to item 1 of the scope of patent application, wherein the surface light source is adapted to provide a first color light, and the first fluorescent layer and the second fluorescent layer are respectively arranged in some of these Within the first lattice point and the second lattice point, and the first fluorescent layer and the second fluorescent layer respectively include: a plurality of first fluorescent substrates, adapted to convert the first color light into a first I two-color light; and a plurality of second fluorescent substrates, adapted to convert the first color light into a third color light. 9. The backlight module according to item 8 of the scope of patent application, wherein these 10651twf.ptd Page 25 200417795 VI. Patent application scope The arrangement of the first fluorescent substrate, the second fluorescent substrate, and the lattice points without the fluorescent layer arranged includes a mosaic type, a triangular type, One of the stripe pattern and the tetracycline configuration pattern. 10. A liquid crystal display device comprising: a backlight module including: a surface light source having a first light exit surface and a corresponding second light exit surface; a first light-shielding matrix disposed in the first A light emitting surface, wherein the first light-shielding matrix has a plurality of first lattice points exposing the first light emitting surface; # a second light-shielding matrix disposed on the second light emitting surface, wherein the second The light-shielding matrix has a plurality of second grid points exposing the second light exit surface; a first fluorescent layer is disposed in the first grid points; and a second fluorescent layer is disposed in the second Within the grid; two polarizing films are respectively disposed on the first fluorescent layer and the second fluorescent layer; two electrode layers are respectively disposed on the polarizing films; two array substrates are respectively disposed on the backlight module Both sides; and two liquid crystal layers respectively disposed between the array substrates and the backlight module. 1 1. The liquid crystal display according to item 10 of the scope of patent application, wherein the surface light source comprises a cold cathode flat fluorescent lamp. 1 2. The liquid crystal display according to item 10 of the scope of patent application, wherein 10651twf.ptd Page 26 200417795 6. The scope of the patent application The surface light source includes: a first light guide plate, the first light guide plate has a first light incident surface, the first light exit surface and a first light diffusion surface; A second light guide plate is disposed below the first light guide plate, and the second light guide plate has a second light incident surface, the second light exit surface, and a second light diffusion surface; a reflection cover is disposed on the second light guide plate; The first light incident surface and the second light incident surface are beside the second light incident surface; and a line light source is disposed in the reflection cover. 13. The liquid crystal display according to item 11 of the scope of patent application, wherein 〇 the first diffusion surface and the second diffusion surface each have a plurality of V-shaped notches. 14. The liquid crystal display according to item 11 of the scope of patent application, wherein the line light source includes one of a cold cathode fluorescent lamp tube and a light emitting diode array. 15. The liquid crystal display according to item 10 of the scope of patent application, wherein the first fluorescent layer and the second fluorescent layer respectively include: a plurality of first fluorescent substrates, which are suitable for converting the light source into a light source. A first color light; __ a plurality of second fluorescent substrates adapted to convert the light source into a second color light; and a plurality of third fluorescent substrates adapted to convert the light source into a third color light. 16. The liquid crystal display according to item 15 of the scope of patent application, wherein 10651twf.ptd Page 27 200417795 VI. Scope of patent application The arrangement of these first fluorescent substrates and substrates includes horses; gram = fluorescent "substrate and one of the pixel layout types. Heart corner type Sad, stripe type 17 · If you apply for a patent, the surface light source is suitable for providing -m items of liquid crystal display, and the first layer knife is configured in part of the first layer and the first fluorescent layer and: , Zhan and the temple's two grids of the plurality of first fluorescent light :: fluorescent t-layers respectively include: two-color light; and Xian Jibei, which is suitable for converting the first-color light into a plurality of second fluorescent light three-color light. Xianjibei is suitable for converting the first color 18 1 · As shown in the application of the exclusive interest chart, the liquid crystal display described in item 17 of the m-chrome on the first base, the second base Light base f and / 15, the arrangement of the grid points of the first layer :: shell and unconfigured grain pattern, four-day prime configuration pattern ... triangle type, etc .: as described in layer 10 Liquid crystal display, array substrate, and each-; pen: 'and the array f-boards are thin arrays of "non-row thin films" :: Arrayed pixel electrodes on the TFT array substrate are provided with a plurality of pixel electrodes ... and a plurality of corresponding fluorescent ground states of the thin films, four of which are in the second point, are the first and the first of which have the fluorescent state, the stripe Among them, there are a plurality of transistors, and the substrate is on the substrate, where the Chu = · The liquid crystal display as described in item 10 of the patent scope of the patent, the spoon electrode layer includes a plurality of -strip electrodes, and these arrays: It further includes a plurality of second strip electrodes. + Array 2 1 · Liquid crystal display device as described in claim 20 of the patent scope Page 28 200417795 6. Scope of patent application The extension direction of the first strip electrodes is perpendicular to the extension direction of the second strip electrodes. 2 2. The liquid crystal display according to item 10 of the scope of patent application, further comprising: two first alignment films respectively disposed on the electrode layers to align the liquid crystal layers; and two second alignment films , Respectively, arranged on the array substrates to align the liquid crystal layers. 2 3. The liquid crystal display as described in item 10 of the patent application scope further includes two polarizers, which are respectively disposed on the outer surfaces of the array substrates. 10651twf.ptd Page 29