TW591299B - Back light module and liquid crystal display - Google Patents

Abstract

A back light module mainly comprised a surface light source, a black matrix, and a fluorescent layer is adapted for providing a colorful surface light source. The black matrix is disposed on the surface light source. The black matrix has a plurality of lattices exposing the surface light source. The fluorescent layer is disposed in the lattices. By using the fluorescent layer, the back light module can provide the colorful light source. In addition, a liquid crystal display mainly comprised a polarizer, a electrode layer, a array substrate, a liquid crystal layer and the back light module mentioned above is provided. The polarizer is disposed on the fluorescent layer. The electrode layer is disposed on the polarizer. The array substrate is disposed above the back light module. The liquid crystal layer is disposed between the array substrate and the back light module.

Description

591299 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a backlight module (Back Light Module) and a liquid crystal display (Liquid Crystal Display, LCD), and in particular to a system capable of providing color A backlight module with a modified surface light source and a liquid crystal display using the backlight module. [Prior art]

In order to cope with the modern living mode, the volume of video or image devices is becoming thinner and thinner. Although the traditional cathode ray display (CRT) still has its advantages', due to the structure of the internal electronic cavity, the display has a large volume and takes up space, and there are still problems such as radiation damage to the eyes during display. Therefore, F 1 at Panel Display, such as liquid crystal display (LCD), organic light emitting display (0LED), or plasma display panel (PDP), has been developed in cooperation with optoelectronic technology and semiconductor manufacturing technology. Gradually become the mainstream of display products.

As mentioned above, as for the liquid crystal display, according to the light source utilization type, it can be divided into three types: reflective liquid crystal display (reflective LCD), transmissive liquid crystal display (transmissive LCD) and transflective liquid crystal display. Taking a transmissive or transflective liquid crystal display as an example, it is mainly composed of a liquid crystal panel and a backlight module. Among them, the liquid crystal panel is composed of two transparent substrates and one transparent substrate. The liquid crystal layer is formed between the substrates, and the backlight module is used to provide a surface light source required by the liquid crystal panel, so that the liquid crystal display can achieve a display effect. It is worth noting that, whether it is a reflective liquid crystal display or a transmissive liquid crystal display, a color filter film (C0 l0r) is usually arranged on a transparent substrate of a liquid crystal panel.

10668twf.ptd Page 7 591299 V. Description of the invention (2) F i 11 e r) ′ to make the liquid crystal display achieve the effect of full color display. FIG. 1 is a schematic structural diagram of a conventional liquid crystal display. Please refer to FIG. 1 as shown in the figure. 'Liquid crystal display 丨 〇 〇 is a thin film transistor liquid crystal display (TFT-LCD), which is mainly composed of a backlight module 110 and a liquid crystal panel 120. The backlight module 1 丨 〇 is arranged on the back of the liquid crystal panel 丨 2〇, this back is relative to the user, and the backlight module 丨 丨 〇 is composed of a light guide plate 11 2, a line light source 11 4 and a reflection cover 1 1 6 constitutes. The light guide plate I 1 2 is, for example, a wedge-shaped light guide plate having a light incident surface 丨 2 a, a light expansion surface 112 b, and a light exit surface ii 2 c. The reflecting cover 116 is arranged beside the light incident surface 11 2 a, and the linear light source 114 is arranged inside the reflecting cover 116. The above-mentioned linear light source 114 is, for example, a cold-cathode fluorescent lamp (CCFL) or a light-emitting diode array suitable for providing white light. The light provided by the linear light source 14 can be incident on the light guide plate 112 from the light incident surface 112a, and transmitted and emitted to the light exit surface 11 2c after being scattered and reflected by the light diffusion surface II 2b. From the above, it is known that 'the type of light emitted from the light emitting surface 11 2c is a white surface light source type' is used as a light source required for the display of the LCD panel 120. Please continue to refer to FIG. 1. The liquid crystal panel 120 is mainly composed of a thin film transistor array substrate (TFT Array) 1 30, a color filter substrate 1 40, and a liquid crystal layer 150. The liquid crystal layer 150 is disposed between the thin film transistor array substrate 130 and the color filter substrate 140. As shown in FIG. 1, a plurality of thin film transistors 132 (Thin Film Transistor, TFT) and a pixel electrode 134 corresponding to each thin film transistor 132 are disposed on the thin film transistor array substrate 130. . The thin film transistor 132 is composed of a gate 132a, a channel

10668twf.ptd Page 8 591299 V. Description of the invention (3) The layer (Channel) 132b, the source 132c (Source) and the drain (Drain) 132d. Among them, the gate 1 3 2 a is connected to a scanning line (S ca η 1 ine) to control the opening and closing of the channel layer 132 b, and the source 132 c is connected to a data line. When the gate When 132a is coupled to an appropriate voltage, the channel layer 1 3 2 b is in a conductive state. At this time, the data displayed on the daytime surface will sequentially pass through the data line, source 132c, channel layer 132b, and drain 132d. It is written in the day element electrode 134. In short, the thin film transistor 132 is like a switch for each pixel, and it can control the state of each pixel electrode 34, thereby achieving the display effect.

As shown in FIG. 1, a black matrix 142 is disposed on the color filter substrate 1 40. The black matrix 142 has a plurality of grid points 1 4 3 that expose the surface of the color filter substrate 1 4 0. A color filter film 1 4 4 ′ is correspondingly arranged in the grid points 1 4 3. The color filter film 1 4 4 located in the grid points 1 4 3 may be, for example, a red filter film, a green filter film, or The blue filter film can be arranged in various types in the grid points 1 4 3 of the black matrix 1 4 2, such as mosaic type, triangular configuration type, stripe configuration type, and four pixel configuration type.

As shown in FIG. 1, a common electrode 146 'is disposed on the color filter substrate 140, and the thin film transistor 132 is used as a driving element to drive the liquid crystal between the common electrode layer 146 and the pixel electrode 134 to twist. In addition, the common electrode layer 146 and the pixel electrode 134 are respectively provided with an alignment layer 148 and an alignment film 136 to align the liquid crystal layer; [50]. In addition, the thin film transistor array substrate 130 and the color filter substrate 4

10668twf.ptd Page 9 591299 V. Description of the invention (4) The liquid crystal layer 150 is arranged between the liquid crystal layer 150 by a seal ant 152, and a plurality of spaces (Spacer) 154 can be added in the liquid crystal layer 150. In order to maintain the gap (Gap) between the thin film transistor array substrate 130 and the color filter substrate 140. In addition, polarizers 60 and 170 are arranged on the outer surfaces of the thin film transistor array substrate 300 and 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, it is necessary to use the color filter on the color filter substrate 140. The thin film 1 4 is used to filter the white light of the backlight module 110 into colored light of various wavelength ranges (such as blue light, red light, or green light), so that the liquid crystal display 100 achieves a full color effect. In other words, the application of color filters and light substrates is the main technology for the current development of colorization of liquid crystal displays. Due to the color filter, the liquid crystal display is caused by the uneven color filter film on the substrate, which has reached the complexity of the flat surface. Most of the array substrates reduce the color filter phenomenon of the display. The purpose of frankization on the color and black matrices, and the development of sandwiching the liquid crystal layer of the liquid crystal display. However, it is not cheap. In addition, in the configuration meeting, it is necessary to use color coating.) In addition to the production of light film, the liquid crystal display is made by the thin film transistor. [Abstract of the invention is more complicated. The price cannot be covered by the film and the black matrix color filter. It is flat, so it will increase. It is also a negative. Both use color filters. This design, and the price is a process layer (over color filter) on the substrate. In addition, the optical substrate and architecture will be limited.

591299 V. Description of the invention (5) Therefore, the object of the present invention is to provide a surface light source with a color connection, so that the liquid crystal display = color: The purpose of the present invention is to provide a liquid crystal display without the need for By constructing a color calendered substrate, the volume can be made thinner. Wen Guoya The present invention provides a backlight module that can generate a colored surface source. The backlight module mainly includes a surface light source, a light-shielding matrix, and a light layer. The light-shielding matrix is arranged on the surface of the surface light source, and the light-shielding matrix has a plurality of grid points exposing the surface of the surface light source, and the fluorescent layer is arranged in these grid points. 9-i This is a liquid crystal display. This liquid crystal display mainly includes a backlight module, a polarizing film, an electrode layer, an array substrate, and a liquid crystal layer. The backlight module includes a surface light source, a light-shielding matrix, and a fluorescent layer. The light-shielding matrix is disposed on the surface of the surface light source, and the light-shielding matrix has a plurality of lattice points exposing the surface of the surface light source, and the fluorescent layer is disposed within these lattice points. A polarizing film is disposed on the fluorescent layer, and an electrode layer is disposed on the polarizing film. The array substrate is disposed above the backlight module, and the liquid crystal layer is disposed between the array substrate and the backlight module.

In a preferred embodiment of the present invention, the surface light source of the backlight module includes a light guide plate, a reflective cover, and a line light source. The light guide plate has a light incident surface, a light exit surface, and a light diffusion surface, and the light diffusion surface has a plurality of V-shaped notches. The reflecting cover is arranged beside the light incident surface, and the line light source is arranged in the reflecting cover. The line light source is, for example, a cold cathode fluorescent tube or a

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591299 V. Description of the invention (6) ': Light: polar body array. In addition, the backlight module is a cold-cathode flat fluorescent lamp. You Yuan can also be, for example, in the preferred embodiment of the present invention, composed of a plurality of first fluorescent substrates and a plurality of second fluorescent substrates of a third fluorescent substrate. Among them, the first shell and the plurality of shells are converted into -th-color light, for example, converted into blue light = into green light. In addition, the above-mentioned first glory [a] is, for example, the arrangement of the light matrix: the type is arranged with the third type or the tetracycline configuration type. In a preferred embodiment of the stripe m, the above-mentioned part of the surface light r is within a grid point. Among them, the glory layer is composed of a plurality of two == second fluorescent substrates. The first fluorescent matrix is suitable for: converting m-color light into a third-color light, for example, η, and the arrangement manner of the first fluorescent matrix, the second fluorescent matrix, and the grid points not configured with the fluorescent layer, such as It is mosaic type, triangle type, stripe type or four-pixel configuration type. In a preferred embodiment of the present invention, the above-mentioned electrode layer is, for example, a common electrode layer, and the array substrate is, for example, a thin film transistor array substrate. Among them, a thin film transistor array substrate has a plurality of thin film transistors arranged in an array, and a plurality of day electrodes arranged corresponding to the thin film transistors. 1 10668twf.ptd Page 12 V. Description of the invention (7) The example of the electrode layer shall be provided with a plural number perpendicular to the electrode layer, and the above is aligned. 〇 The purpose of coloring on the surface of the light source. Need to structure the color product to be thinner, features, and coordinate with the attached. For example, a plurality of second stripe two stripe electrodes are further equipped with an array substrate. In addition, the array forms a fluorescent. In addition, the present invention is a light substrate. The advantages are clearer and more detailed. In a preferred embodiment of the present invention, the first strip-shaped electrode is provided, while the array substrate is provided with the electrode, and the first strip-shaped electrode extends in the extending direction. In a preferred embodiment of the present invention, a first alignment film is provided to align the liquid crystal layer with a second alignment film, and a polarizer is further disposed on the outer surface of the liquid crystal layer substrate. The present invention is directed to a backlight module. The surface layer of the group can be directly integrated with the array substrate so that the light emitted from the surface light source can reach the bright color. Therefore, it will not make the whole body of the liquid crystal display easier to understand the above and other objects of the present invention. A preferred embodiment is described in detail as follows: [Embodiment Mode] FIG. 2 is a schematic structural diagram of a backlight module according to a preferred embodiment of the present invention. The backlight module 2000 is composed of a surface light source 210, a light-shielding matrix 220, and a fluorescent layer 230. The surface light source 210 is composed of a light guide plate 212, a line light source 214, and a reflecting cover 216. The light guide plate 212 is, for example, a wedge-shaped light guide plate, which has a light incident surface 212a, a light diffusion surface 212b, and a light exit surface 212c, and the light diffusion surface 21 2b has a plurality of V-shaped notches (see the figure) Area a). The reflecting cover 216 is arranged beside the light incident surface 21 2a, and the linear light source 214 is arranged inside the reflecting cover 216. Above

l〇668twf.ptd Page 13 591299 V. Description of the invention (8) The linear light source 2 1 4 is, for example, a cold cathode fluorescent lamp (CCFL) or a light emitting diode array suitable for providing white light. The light provided by the linear light source 214 can be incident on the light guide plate 212 from the light incident surface 212a, and transmitted and emitted to the light exit surface 2 1 2c after being scattered and reflected by the light diffusion surface 2 1 2 b. From the above, it can be known that the light emitted from the light emitting surface 2 1 2 c is a type of white surface light source, and is used as a light source required for display. As mentioned above, the light-shielding matrix 2 2 0 is, for example, a black matrix, which is arranged on the light exiting surface 2 12c of the light guide plate 212, and the light-shielding matrix 220 has a plurality of grid points 222 that expose the light-outgoing surface 212c. The layer 230 is disposed within the grid points 222. The fluorescent layer 230 is composed of a plurality of first fluorescent substrates 230a, a plurality of second fluorescent substrates 230b, and a plurality of third fluorescent substrates 230c. The first fluorescent substrate 230a can convert the surface light source 210 into a single-color light, such as blue light, and the second fluorescent substrate 23Ob can convert the surface light source 210 into a single-color light, such as red light, and The third fluorescent substrate 2 3 0 c can convert the surface light source 2 1 0 into one-color light, for example, green light. In other words, when the white light originally emitted from the light emitting surface 2 1 2c passes through the fluorescent layer 2 30, the surface light source 210 emits colored light of different colors by the configuration of the different fluorescent substrates described above. Therefore, it can be known from the foregoing that the surface light source 2 10 provided by the backlight module 2000 is a colorized surface light source.

Figures 3A to 3D are schematic diagrams showing the arrangement of the fluorescent substrate according to a preferred embodiment of the present invention. Please refer to FIGS. 3A to 3D. The arrangement of the first fluorescent substrate 23〇a, the second fluorescent substrate 23〇b, and the third fluorescent substrate 23 吒 may be, for example, a mosaic type (see FIG. 3A), Triangular pattern (see Figure 3B), striped pattern (see Figure 3C), or tetrahedral configuration pattern (see Figure 3D)

591299 V. Description of the invention (9) Figure). FIG. 4 is a schematic structural diagram of a backlight module according to another preferred embodiment of the present invention. According to the above-mentioned 'the backlight module of the present invention, it can provide a colored surface light source. Because the surface of this surface light source is made of a fluorescent layer with different glory substrates, the white light originally emitted by the surface light source is converted into Different colors of light. 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 4 can provide a single color of light, for example, blue light, and Make the surface light source 2 emit blue light 'It is worth noting' that the fluorescent layer 240 is arranged on the light-shielding matrix 220

Part of the injury points 2 2 2. The 'fluorescent layer 2 40' is composed of a plurality of first glorious bases 240a and a plurality of first fluorescent bases 240b. The first fluorescent substrate 240a is suitable for converting the above-mentioned blue light into a single color light, for example, from blue light to red light. The second fluorescent substrate 240b is adapted to convert the above-mentioned blue light into one-color light, for example, from blue light to green light. The grid point 2 2 2 ′, which is not provided with the fluorescent layer 2 j 〇, can directly transmit the above-mentioned blue light. Of course, the arrangement manners of the first fluorescent matrix 240a, the fluorescent matrix 240b, and the grid points 222 that are not provided with the fluorescent layer 24 may also be, for example, a mosaic pattern, a triangular pattern, a stripe pattern, or a tetracycline configuration. Type. As can be seen from the above,

The design emits a kind of colored light, and the fluorescent layer disposed in the grid point can further omit one of the fluorescent substrates, so it is easier and cheaper to manufacture the backlight module. In addition, the surface light source 21, the line light source 214, and the light guide plate 212 disclosed in FIG. 2 and FIG. 4 cooperate with each other to achieve it. However, a person skilled in the art should be able to infer that the surface light source in the embodiment 2 丨 〇 can also be used directly

10668twf.ptd Page 15 591299 V. Description of the invention (10) A ^ — cold cathode planar fluorescent lamp (CCFFL) replacement, and a fluorescent layer with a different fluorescent substrate is produced on the surface of the cold cathode plane tt, and the same Make the light emitted by the Xiguang module achieve the purpose of colorization. FIG. 5 is a schematic diagram showing the structure of a liquid crystal display according to a preferred embodiment of the present invention. Referring to FIG. 2 and FIG. 5 together, since the above-mentioned back module 200 can provide a colored surface The light source, therefore, the present invention applies this special group 200 to a transmissive or semi-transparent-semi-reflective device 300. The LCD display 300 is mainly composed of the above-mentioned backlight module 200, a polarizing film 310, an electrode layer 320, an array substrate 33, and a liquid crystal layer. Among them, the polarizing film 31 is configured. On the fluorescent layer 230 of the backlight module 200. The electrode layer 320 is disposed on the polarizing film 31, and this electrode layer is, for example, a common electrode layer. The array substrate 33 is disposed above the backlight module 200. The liquid crystal layer 340 is disposed between the array substrate 33 and the backlight module 200. As shown in FIG. 5, the above-mentioned array substrate 33 is, for example, a thin film transistor array substrate, and the substrate is disposed on the substrate. There are a plurality of thin film transistors μ2 (NT) and a pixel electrode 334 corresponding to each thin film transistor 332. The thin film transistor 332 is composed of a gate electrode 332a, a channel layer 332b, a source electrode 332c, and a drain electrode 332d. Among them, the gate 332a is connected to a scan line to control the opening and closing of the channel layer 332b, and the source 332c is connected to a data line. When the gate 332a is coupled to an appropriate voltage, the channel layer "" It is in a conductive state. At this time, the screen display Information will sequentially via the data line, a source electrode 332c, the channel layer 332b, drain 332 (day 1 is written in the pixel electrodes 334. 591,299 V. invention is described in (11)

In short, the thin film transistor 332 is like every one that can control the state of each pixel electrode 334, and then & turn on and off as a result. In addition, the thin-film transistor 332 is used as a driving electrode to effect the electrode layer 320 (ie, the common electrode layer) and the day electrode element to drive the shovel. As shown in FIG. 5, the liquid crystal twist between the two electrodes is as shown in FIG. 5 (that is, an alignment film 350 and an electrode are disposed on the co-prime electrode 334, respectively), and a mu and an alignment film. 340 performs alignment. In addition, the array substrates 33 and 60 are arranged in a 200 series by a plastic frame 342. The liquid crystal layer is placed in the liquid crystal layer 340 and a plurality of gaps 344 are added to maintain array arrays, panels, and backlight modules 200. In addition, the array substrate 3: is equipped with-polarizer 37 0, so that the liquid crystal display 30. To reach the display Wo 0, for example, to reach the back of the matrix LCD) The middle layer is not the electrode strip that the artist should As mentioned above, this embodiment is described with the backlight module disclosed in FIG. 2. Of course, the backlight module disclosed in FIG. 4 can also be used to provide the same purpose of colored surface light source. In addition, the optical module of this embodiment can be applied to an active matrix liquid crystal display (Aube LCD) and a passive matrix liquid crystal display (passive). In other words, an electrode disposed on a backlight module and an array substrate The mode is limited to a common electrode and a day electrode. If you are familiar with this technology, it can be inferred that the upper layer of the backlight module and the array substrate in this embodiment can also be a plurality of strip electrodes, and it is extremely Extension direction is vertical Extension of the strip electrode of the array substrate V. Description of the invention (12) The above advantages are combined: 1. The present invention enables liquid crystal display 2. The invention is made of decolorized filter base, so the liquid is reduced. The polarizer is simplified and reduced. 4. The present invention omits color filter thinning. Although the present invention is limited to the scope and scope of the present invention, the surface light source that is colored after viewing is described as the backlight module and the liquid crystal display of the present invention. Contains = The backlight module can directly provide a full-color effect. ^ The backlight module can be directly integrated with the array substrate, which can save the production process of the crystal display. The backlight module can be directly integrated with the array substrate. Because the manufacturing process can be saved, the manufacturing process of the liquid crystal display will be cost-effective. The backlight module can be directly integrated with the array substrate, and the substrate can be used, so the overall volume of the liquid crystal display will be better. The embodiment is disclosed as above, but it is not used by any person skilled in the art, and can be modified and retouched without departing from the essence of the present invention. Therefore, the application of the guarantee of the present invention Please define the scope of the patent.

591299 Brief Description of the Drawings Figure 1 is a schematic diagram showing the structure of a conventional liquid crystal display; Figure 2 is a schematic diagram showing the structure of a backlight module according to a preferred embodiment of the present invention; Figures 3 A to 3D are drawings FIG. 4 is a schematic diagram showing an arrangement manner of a fluorescent substrate according to a preferred embodiment of the present invention. FIG. 4 is a schematic structural diagram of a backlight module according to another preferred embodiment of the present invention; The structure of the liquid crystal display of the preferred embodiment is not intended. [Illustration of Graphical Symbols] I 0 0: Liquid crystal display II 0: Backlight module 11 2: Light guide plate 11 2 a: Light incident surface 112b: Light diffusion surface 112c: Light emission surface 11 4: Line light source 11 6: Reflective cover 1 2 0 · LCD panel 130: thin-film transistor array substrate 132: thin-film transistor 132a: gate 132b: channel layer 1 3 2c: source

10668twf.ptd Page 19 591299 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 Film 1 4 6: Common electrode layer 1 3 6, 1 4 8: Alignment film 1 50: Liquid crystal layer 15 2: Plastic frame 154: Spacer 1 6 0, 1 7 0: Polarizer 2 0 0: Backlight mode Group 2 1 0: light guide plate 2 1 2 a: light incident surface 212b: light diffusion surface 2 1 2 c: light exit surface 2 1 4: line light source 216: reflector 2 2 0: light-shielding matrix 2 2 2: grid point 230, 240: fluorescent layers 230a, 240a: first fluorescent base 230b, 240b: second fluorescent matrix

10668twf.ptd Page 20 591299 Simple illustration 230c: Third fluorescent substrate 300 Liquid crystal display 310 Polarizing film 320 Electrode layer 330 Array substrate 332 Thin film transistor 332a: Gate 332b: Channel layer 332c: Source 332d: Drain Electrode, 334 pixel electrode 340 liquid crystal layer 342 plastic frame 344 spacer 350, 3 60: alignment film 370: polarizer

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Claims (1)

5912Θ9 A mouth '. People: six τ * Τ patent scope 1. A backlight module, which provides a colored surface light source, the backlight module includes: a surface light and a light shielding source; a matrix is arranged on the surface of the surface light source And the light-shielding matrix has a plurality of grid points exposing the surface of the surface light source; and a glorious layer disposed in the grid points. 2. Rushen's light source includes cold 3. Rushen's light source includes: The backlight module described in item 1 of the patent scope, where the surface is a flat cathode fluorescent lamp. The backlight module according to item 1 of the patent scope, wherein the surface has a light guide and a light diffusion and a reflection of a line of light 4 · If there is 5 on the diffuse surface · If the light source includes a plate, the light guide plate has a light An incident surface and a light exit surface are provided; a cover is disposed beside the light incident surface; and a source is disposed in the reflection cover. The backlight module according to item 3 of the patent, wherein the plurality of V-shaped notches are extended. Please refer to the backlight module described in item 3 of the patent scope, wherein the line cold cathode fluorescent lamp tube and a light-emitting diode array 6. The backlight module described in item 1 of the patent scope, wherein the fluorescent The light layer includes: a plurality of first fluorescent substrates adapted to convert the surface light source into a first color light; a plurality of second light substrates adapted to convert the surface light source into a second light source 10668twf.ptd Page 22 Colored light; and a plurality of third fluorescent substrates, which are suitable for converting the surface light source into a third row with a 7. The backlight module described in item 6 of the scope of patent application, wherein the 7 fluorescent substrates, The alignment modes of the second fluorescent substrates and the third fluorescent substrates include one of a mosaic type, a triangular type, a stripe type, and a four-book type. Ichikyo ", 8 · The backlight module described in item 1 of the scope of patent application, wherein the surface source is suitable for k for a first color light, and the fluorescent layer is arranged in some of the grid points, and The fluorescent layer includes: ~ a plurality of first fluorescent substrates adapted to convert the first color light into a second 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 patent application scope, wherein the first fluorescent substrates, the second fluorescent substrates, and the grid points without the fluorescent layer are configured. The arrangement methods include one of the mosaic type, the triangular type, the stripe type, and the four-day element configuration type. 10. One type of liquid crystal display, including: A backlight module includes: a surface light source; a light-shielding matrix disposed on the surface of the surface light source, and the light-shielding matrix having a plurality of grid points exposing the surface of the surface light source; a fluorescent layer disposed on the grid points Inside; Page 23 591299 6. Application scope A polarizing film is disposed on the fluorescent layer; an electrode layer is disposed on the polarizing film; an array substrate is disposed above the backlight module; and a liquid crystal layer is disposed Between the array substrate and the backlight module. Π The liquid crystal display as described in item 10 of the patent application scope, wherein the surface light source comprises a cold cathode flat fluorescent lamp. 1 2 · The liquid crystal display as described in item 1 of the patent application scope, wherein the surface light source comprises: a light guide plate having a light incident surface, a light exit surface, and a light diffusion surface; a reflective cover, It is arranged beside the light incident surface; and a line light source is arranged in the reflecting cover. 1 3 · The liquid crystal display according to item 2 of the patent application scope, wherein the diffusion surface has a plurality of V-shaped notches. 1 4 · The liquid crystal display as described in item 2 of the patent application scope, wherein the line light source includes one of a cold cathode fluorescent tube and a light emitting diode array ° 1 5 · As the patent application scope 1 0 The liquid crystal display according to the above item, wherein the fluorescent layer comprises: a plurality of first fluorescent substrates adapted to convert the surface light source into a first color light; a plurality of second fluorescent substrates adapted to the surface light source Converting into a second colored light; and a plurality of third fluorescent substrates, which are suitable for converting the surface light source into a third 591299 colored light in the scope of patent application. 16 · The liquid crystal display according to item 1 of the scope of patent application, wherein the arrangement manners of the first fluorescent substrates, the second fluorescent substrates and the third fluorescent substrates include a mosaic pattern, a triangle One of the pattern, the stripe pattern, and the four-pixel configuration pattern. 17 · The liquid crystal display as described in item 10 of Shen Qing's patent scope, wherein the side surface light source is adapted to provide a first color light, and the fluorescent layer is arranged in some of the grid points, and the fluorescent The light layer includes: a plurality of first fluorescent substrates adapted to convert the first color light into a first color light; and a plurality of first fluorescent substrates adapted to convert the first color light into a third color light Shade. 18 · The liquid crystal display according to item 17 of the scope of patent application, wherein the arrangement of the first fluorescent substrates, the second fluorescent substrates, and the lattice points without the fluorescent layer includes: One of mosaic type, triangle type, stripe type and four-pixel configuration type. 19 · The liquid crystal display according to item 10 of the scope of patent application, wherein the electrode layer is a common electrode layer, and the array substrate is a thin film transistor array substrate, and the thin film transistor array substrate has a plurality of arrays. Arranged thin film transistors and a plurality of daylight electrodes corresponding to the configuration of the thin film transistors. 2 0. The liquid crystal display according to item No. 0 of the patent application scope, wherein the electrode layer includes a plurality of first stripe electrodes, and the array substrate further includes a plurality of second stripe electrodes. 10668twf.ptd Page 25 591299 6. Application for Patent Scope 2 1. The liquid crystal display according to Item 20 of the scope of patent application, wherein the extending directions of the first strip electrodes are perpendicular to the second strip electrodes. Direction of extension. 2 2. The liquid crystal display according to item 10 of the scope of patent application, further comprising: a first alignment film disposed on the electrode layer to align the liquid crystal layer; and a second alignment film disposed on the Aligning the liquid crystal layer on the array substrate. 2 3. The liquid crystal display according to item 10 of the patent application scope further includes a polarizer, and the polarizer is disposed on the outer surface of the array substrate. 10668twf.ptd Page 26