LCD display screen

Abstract

The utility model discloses a liquid crystal display (LCD) screen, which comprises a display screen module and a backlight module, and the display screen module is arranged above the backlight module. A color filter in the display screen module comprises a plurality of red filter films, a plurality of green filter films, a plurality of blue filter films, a plurality of black matrix films and a substrate, the red filter films, the green filter films and the blue filter films are embedded in the black matrix films, and the substrate is arranged on the substrate. The filter films with the same color are distributed on the same longitudinal column, and the filter films with the three colors are arranged in sequence; the red filter film, the green filter film, the blue filter film and the black matrix film are arranged above the substrate. By changing the structure of the color filter in the traditional LCD display screen, the light intensity, the color saturation, the color purity and the light transmittance of the LCD display screen are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD display screen manufacturing and processing, in particular to an LCD display screen. Background Art

[0002] LCD display is a flat ultra-thin display device, which is composed of a certain number of color or black and white pixels and is placed in front of a light source or a reflective surface. LCD display has very low power consumption and is suitable for electronic devices that use batteries. Its main principle is to stimulate liquid crystal molecules with electric current to produce points, lines, and surfaces to form a picture with the back light tube. Among them, for more complex color LCD display, it is very important to have a color filter layer that specifically handles color display for imaging. Usually, in a color LCD display, each pixel is composed of three liquid crystal cells, each of which has a red, green, or blue filter film in front of it. In this way, the light passing through different cells can show different colors on the screen. The color filter of the traditional LCD display adopts a sandwich structure of "color filter film-black matrix film-glass substrate" pressed, which causes the backlight provided by the backlight module to reduce the light intensity after passing through the color filter in the liquid crystal module, and has the disadvantages of low color saturation, low color purity, low light transmittance, etc., and greatly increases the energy consumption of the LCD display. Utility Model Content

[0003] The purpose of the utility model is to provide an LCD display screen to improve the light intensity, color saturation, color purity and light transmittance of the LCD display screen. To achieve the above purpose, the utility model adopts the following technical solutions:

[0004] The utility model discloses an LCD display screen, comprising a display screen module and a backlight module, wherein the display screen module is arranged above the backlight module.

[0005] The color filter in the display screen module includes: a red filter film, a green filter film, a blue filter film, a black matrix film, and a substrate. The red filter film, the green filter film, and the blue filter film are provided in multiple pieces. The red filter film, the green filter film, and the blue filter film are embedded in the black matrix film, and the filter films of the same color are distributed in the same vertical column, and the filter films of three colors are arranged in sequence.

[0006] The red filter film, the green filter film, the blue filter film and the black matrix film are arranged above the substrate.

[0007] Furthermore, the LCD display screen also includes: a front frame, a plastic frame, and a bottom frame. The front frame is installed above the display screen module, the plastic frame is installed between the display screen module and the backlight module, and the bottom frame is installed at the bottom of the backlight module.

[0008] Wherein, the rubber frame is provided with a driving circuit board on one side or two opposite sides thereof, and the driving circuit board is also provided with a plurality of metal pins.

[0009] Furthermore, the display screen module also includes: a horizontal polarizer, a liquid crystal layer, a TFT glass plate and a vertical polarizer, the horizontal polarizer is arranged above the color filter, and the liquid crystal layer, the TFT glass plate and the vertical polarizer are arranged at the bottom of the color filter.

[0010] Furthermore, the backlight module includes: a diffuser, a diffuser plate, a backplane, a backlight source and a backlight source circuit board. The backlight source is installed on the backplane and connected to the backlight source circuit board. The diffuser and the diffuser plate are arranged above the backlight source.

[0011] Preferably, the backlight source is an LED light emitting element or an OLED light emitting element.

[0012] Preferably, the red filter film, the green filter film and the blue filter film are silicon dioxide films, aluminum oxide films or silicon nitride films.

[0013] Preferably, a layer of fluorescence conversion material of corresponding colors is coated on the red filter film, the green filter film and the blue filter film.

[0014] Preferably, the substrate is a resin plate or a glass plate.

[0015] Furthermore, the LCD display screen is also provided with a main control circuit board, which is installed above the bottom frame and connected to the display screen module and the backlight module.

[0016] After adopting the above technical solution, the utility model has the following effects:

[0017] 1. The utility model divides the traditional color filter film into different filter film blocks and embeds them into the black matrix film, which can improve the light intensity, color saturation, color purity and transmittance of the LCD display screen.

[0018] 2. The utility model adds a layer of fluorescent conversion material of corresponding color on the color filter film, which can improve the efficiency of light filtering and improve the color saturation and color purity of the LCD display.

[0019] 3. The utility model adds an OLED light-emitting element to the backlight source, which can reduce energy consumption while ensuring the intensity of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0021] Figure 2 This is the internal structure diagram of the utility model.

[0022] Figure 3 This is a partial structural diagram of the color filter of the utility model.

[0023] Main component symbols:

[0024] 1: display module, 11: horizontal polarizer, 12: color filter, 121: red filter film, 122: green filter film, 123: blue filter film, 124: black matrix film, 125: substrate, 13: liquid crystal layer, 14: TFT glass plate, 15: vertical polarizer, 2: backlight module, 21: diffuser, 22: diffuser plate, 23: backplane, 24: backlight source, 25: backlight source circuit board, 3: front frame, 4: rubber frame, 5: bottom frame, 6: driver circuit board, 7: metal pins, 8: main control circuit board. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] like Figure 1 and Figure 2 As shown, the utility model discloses an LCD display screen, comprising: a display screen module 1 and a backlight module 2 , wherein the display screen module 1 is arranged above the backlight module 2 .

[0027] like Figure 3 As shown, the color filter 12 in the display screen module 1 includes: a red filter film 121, a green filter film 122, a blue filter film 123, a black matrix film 124, and a substrate 125. The red filter film 121, the green filter film 122, and the blue filter film 123 are provided in multiple pieces. The red filter film 121, the green filter film 122, and the blue filter film 123 are embedded in the black matrix film 124, and the filter films of the same color are distributed in the same vertical column, and the filter films of the three colors are arranged in sequence. In this embodiment, the filter films of the three colors are arranged in a "red-green-blue" arrangement. In other embodiments, the arrangement of the three colors includes but is not limited to this arrangement, as long as the alternation of the three colors can be achieved.

[0028] The red filter film 121 , the green filter film 122 , the blue filter film 123 and the black matrix film 124 are disposed above the substrate 125 .

[0029] In this embodiment, the red filter film 121, the green filter film 122 and the blue filter film 123 are silicon dioxide films, and the substrate 125 is a resin plate. In other embodiments, the red filter film 121, the green filter film 122 and the blue filter film 123 can also be aluminum oxide films or silicon nitride films. In addition, the substrate 125 can also be a glass plate.

[0030] Furthermore, in this embodiment, a layer of fluorescence conversion material of corresponding colors is coated on the red filter film 121 , the green filter film 122 , and the blue filter film 123 to improve the light filtering efficiency.

[0031] like Figure 1 As shown, the LCD display screen also includes: a front frame 3, a plastic frame 4, and a bottom frame 5. The front frame 3 is installed above the display screen module 1, the plastic frame 4 is installed between the display screen module 1 and the backlight module 2, and the bottom frame 5 is installed at the bottom of the backlight module 2.

[0032] The plastic frame 4 is provided with a driving circuit board 6 on one side or two opposite sides thereof, and the driving circuit board 6 is also provided with a plurality of metal pins 7. In this embodiment, the plastic frame 4 is provided with a driving circuit board 6 on both sides, front and back, and the driving circuit board 6 is provided with a plurality of metal pins 7.

[0033] like Figure 2 As shown, the display screen module 1 also includes: a horizontal polarizer 11, a liquid crystal layer 13, a TFT glass plate 14 and a vertical polarizer 15, the horizontal polarizer 11 is arranged above the color filter 12, and the liquid crystal layer 13, the TFT glass plate 14 and the vertical polarizer 15 are arranged at the bottom of the color filter 12.

[0034] The backlight module 2 includes a diffuser 21, a diffuser plate 22, a back plate 23, a backlight source 24 and a backlight source circuit board 25. The backlight source 24 is mounted on the back plate 23 and connected to the backlight source circuit board 25. The diffuser 21 and the diffuser plate 22 are arranged above the backlight source 24.

[0035] In this embodiment, the backlight source 24 is an OLED light emitting element. In other embodiments, the backlight source 24 may also be an LED light emitting element.

[0036] In addition, in this embodiment, the LCD display screen is further provided with a main control circuit board 8 , which is installed above the bottom frame 5 and connected to the display screen module 1 and the backlight module 2 .

[0037] The above description is only a preferred specific implementation of the present invention. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An LCD display screen, characterized in that: include: A display screen module (1) and a backlight module (2), wherein the display screen module (1) is arranged above the backlight module (2); The color filter (12) in the display screen module (1) comprises: a red filter film (121), a green filter film (122), a blue filter film (123), a black matrix film (124), and a substrate (125); the red filter film (121), the green filter film (122), and the blue filter film (123) are provided in multiple pieces; the red filter film (121), the green filter film (122), and the blue filter film (123) are embedded in the black matrix film (124); the filter films of the same color are distributed in the same vertical column, and the filter films of three colors are arranged in sequence; The red filter film (121), the green filter film (122), the blue filter film (123) and the black matrix film (124) are arranged above the substrate (125).

2. An LCD display screen as claimed in claim 1, characterized in that: Also includes: A front frame (3), a plastic frame (4), and a bottom frame (5), wherein the front frame (3) is mounted above the display screen module (1), the plastic frame (4) is mounted between the display screen module (1) and the backlight module (2), and the bottom frame (5) is mounted at the bottom of the backlight module (2).

3. An LCD display screen as claimed in claim 2, characterized in that: The rubber frame (4) is provided with a driving circuit board (6) on one side or on two opposite sides thereof, and the driving circuit board (6) is also provided with a plurality of metal pins (7).

4. An LCD display screen as claimed in claim 1, characterized in that: The display screen module (1) further comprises: a horizontal polarizer (11), a liquid crystal layer (13), a TFT glass plate (14) and a vertical polarizer (15); the horizontal polarizer (11) is arranged above the color filter (12); the liquid crystal layer (13), the TFT glass plate (14) and the vertical polarizer (15) are arranged at the bottom of the color filter (12).

5. An LCD display screen as claimed in claim 1, characterized in that: The backlight module (2) comprises: a diffusion sheet (21), a diffusion plate (22), a back panel (23), a backlight source (24) and a backlight source circuit board (25); the backlight source (24) is mounted on the back panel (23) and connected to the backlight source circuit board (25); the diffusion sheet (21) and the diffusion plate (22) are arranged above the backlight source (24).

6. An LCD display screen as claimed in claim 5, characterized in that: The backlight source (24) is an LED light emitting element or an OLED light emitting element.

7. An LCD display screen as claimed in claim 1, characterized in that: The red filter film (121), the green filter film (122) and the blue filter film (123) are silicon dioxide films, aluminum oxide films or silicon nitride films.

8. An LCD display screen as claimed in claim 7, characterized in that: A layer of fluorescent conversion material of corresponding colors is coated on the red filter film (121), the green filter film (122), and the blue filter film (123).

9. An LCD display screen as claimed in claim 1, characterized in that: The substrate (125) is a resin plate or a glass plate.

10. An LCD display screen as claimed in claim 2, characterized in that: A main control circuit board (8) is also provided. The main control circuit board (8) is installed above the bottom frame (5) and is connected to the display screen module (1) and the backlight module (2).

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