Liquid crystal display screen with high light utilization rate and display module

Abstract

The utility model discloses a liquid crystal display screen with high light utilization rate and a display module, the liquid crystal display screen comprises TFT glass, CF glass and a horizontal diffusion film, the TFT glass is provided with a pixel area and a non-pixel area, the CF glass is arranged on one side surface of the TFT glass, the CF glass is provided with a BM layer, and the position of the BM layer correspondingly covers the non-pixel area; the horizontal diffusion film is arranged on the TFT glass, located on the non-pixel area and used for diffusing light rays on the non-pixel area to the pixel area. Thus, the propagation direction of light is changed through the horizontal diffusion film, the light of the backlight source is converted into the light in the horizontal direction in the horizontal diffusion film to be emitted out, and therefore the light can be transferred from the non-pixel area which cannot be used to the pixel area which can be used, the brightness of the pixel area can be improved, and the light utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a liquid crystal display screen and a display module with high light utilization rate. Background Art

[0002] The display module generally includes a liquid crystal display screen and a backlight module, wherein the liquid crystal display screen is used to realize the display of the picture, and the backlight module is used to provide a light source for the liquid crystal display screen. The liquid crystal display screen mainly includes CF (color filter) glass and TFT (thin film transistor) glass. A liquid crystal box for placing liquid crystal is formed between the CF glass and the TFT glass. TFT thin film transistors and other circuits are arranged on the TFT glass. The rotation direction of the liquid crystal molecules in the pixel area is controlled by changing the signal and voltage on the TFT glass, so as to control whether the polarized light of each pixel point is emitted to achieve the display purpose. A pixel area and a non-pixel area are arranged on the TFT glass. A BM (black shading ink) layer is usually required to be arranged on the area of ​​the CF glass corresponding to the non-pixel area of ​​the TFT glass. The BM layer is used to block the wiring or components on the non-pixel area so that the light cannot pass through. However, the non-pixel area of ​​the existing TFT glass occupies a large area, resulting in that the light in this area cannot be fully utilized, which limits the light utilization rate of the liquid crystal display screen, that is, the light transmittance.

[0003] In view of the above, a liquid crystal display screen and a display module with high light utilization efficiency are proposed to improve the brightness of the liquid crystal display screen. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a liquid crystal display screen and a display module with high light utilization rate to improve the brightness of the liquid crystal display screen.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A liquid crystal display screen with high light utilization rate comprises: TFT glass, CF glass and a horizontal diffusion film, wherein the TFT glass is provided with a pixel area and a non-pixel area, the CF glass is provided on one side of the TFT glass, a BM layer is provided on the CF glass, and the position of the BM layer corresponds to covering the non-pixel area; the horizontal diffusion film is provided on the TFT glass, and the horizontal diffusion film is located on the non-pixel area, and the horizontal diffusion film is used to diffuse the light on the non-pixel area to the pixel area.

[0007] In one of the embodiments, TFT components and a TFT wiring layer are disposed on the non-pixel area, and the TFT wiring layer is disposed around the pixel area.

[0008] In one embodiment, a plurality of pixel regions are provided, and the pixel regions are distributed in a rectangular array.

[0009] In one embodiment, the horizontal diffusion film is disposed on a side surface of the TFT glass close to the CF glass.

[0010] In one of the embodiments, the TFT components and the TFT wiring layer are respectively arranged on a side surface of the horizontal diffusion film away from the TFT glass.

[0011] In one embodiment, the TFT glass and the CF glass are glued together to form a box.

[0012] In one of the embodiments, one side of the TFT glass extends away from the CF glass to form a TFT bonding single layer area.

[0013] In one of the embodiments, it further includes an upper polarizer and a lower polarizer, and the upper polarizer, the CF glass, the TFT glass and the lower polarizer are stacked in sequence.

[0014] A display module comprises the above-mentioned liquid crystal display screen with high light utilization rate, and also comprises a backlight module, wherein the backlight module is arranged on one side surface of the liquid crystal display screen.

[0015] In one of the embodiments, it further includes a cover plate, and the cover plate, the liquid crystal display screen and the backlight module are stacked in sequence.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The liquid crystal display screen and display module with high light utilization rate of the present invention are provided with a horizontal diffusion film on the non-pixel area, and the propagation direction of the light is changed by the horizontal diffusion film, so that the light of the backlight source is converted into horizontal light in the horizontal diffusion film and emitted. In this way, the light can be transferred from the non-pixel area that cannot be used to the pixel area that can be used, thereby improving the brightness of the pixel area, that is, improving the light utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 This is a schematic structural diagram of a liquid crystal display screen with high light utilization rate in one embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the layout of pixel areas in a liquid crystal display screen with high light utilization rate in one embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the layout of the non-pixel area in a liquid crystal display screen with high light utilization rate in one embodiment of the utility model;

[0022] Figure 4 The schematic diagram is a structural diagram of CF glass, TFT glass, horizontal diffusion film and backlight module of a liquid crystal display screen with high light utilization rate in one embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a liquid crystal display screen with high light utilization rate includes: a TFT glass 100, a CF glass 200 and a horizontal diffusion film 300, wherein a pixel area 110 and a non-pixel area 120 are arranged on the TFT glass 100, the CF glass 200 is arranged on one side of the TFT glass 100, a BM (black light-shielding ink layer) layer 210 is arranged on the CF glass 200, and the position of the BM layer 210 corresponds to covering the non-pixel area 120; the horizontal diffusion film 300 is arranged on the TFT glass 100, and the horizontal diffusion film 300 is located on the non-pixel area 120, and the horizontal diffusion film 300 is used to diffuse the light on the non-pixel area 120 to the pixel area 110.

[0025] It should be noted that by setting a horizontal diffusion film 300 on the non-pixel area 120, that is, setting a horizontal diffusion film 300 in the area corresponding to the BM layer 210, the horizontal diffusion film 300 changes the propagation direction of light, so that the light of the backlight source is converted into horizontal light in the horizontal diffusion film 300 and emitted. In this way, the light can be transferred from the non-pixel area 120 (the position corresponding to the BM layer 210) that cannot be used to the pixel area 110 that can be used, thereby improving the brightness of the pixel area 110, that is, improving the light utilization rate (light transmittance).

[0026] Specifically, a TFT component 121 and a TFT wiring layer 122 are provided on the non-pixel area 120, and the TFT wiring layer 122 is provided around the pixel area 110. The TFT component 121 is also located on one side of the pixel area 110. Through the TFT component 121 and the TFT wiring layer 122 on the non-pixel area 120, the liquid crystal in the pixel area 110 is controlled, so that the liquid crystal display screen is controlled to display the desired picture.

[0027] Furthermore, a plurality of pixel regions 110 are provided, and the pixel regions 110 are distributed in a rectangular array. The TFT wiring layer 122 is provided around the pixel regions 110 .

[0028] Specifically, the horizontal diffusion film 300 is disposed on a side surface of the TFT glass 100 close to the CF glass 200. That is, the horizontal diffusion film 300 may be formed on the TFT glass 100 substrate by coating.

[0029] Since both the TFT components 121 and the TFT wiring layer 122 may cause loss of the light of the backlight source, in order to maximize the propagation of the light into the pixel area 110, in the present embodiment, the TFT components 121 and the TFT wiring layer 122 are respectively arranged on the side of the horizontal diffusion film 300 away from the TFT glass 100, that is, the horizontal diffusion film 300 is first arranged on the TFT glass 100, and then the corresponding TFT components 121 and the TFT wiring layer 122 are sequentially manufactured, so that the backlight source can first enter the horizontal diffusion film 300, and the horizontal diffusion film 300 converts the light into horizontal light and propagates it into the pixel area 110, so as to improve the brightness of the pixel area 110, and further improve the light utilization rate of the display screen, that is, the light transmittance of the display screen.

[0030] Specifically, the TFT glass 100 and the CF glass 200 are bonded into a box by means of a frame glue 400. That is, the frame glue 400 is arranged around the four sides of the CF glass 200, and the corresponding liquid crystal is arranged inside the frame glue 400.

[0031] Furthermore, one side of the TFT glass 100 extends away from the CF glass 200 to form a TFT binding single layer area 130. The TFT binding single layer area 130 is provided with an IC chip binding area and a circuit board binding area, wherein the IC chip binding area is bound with an IC chip, and the circuit board binding area is bound with a flexible circuit board.

[0032] Furthermore, the liquid crystal display screen also includes an upper polarizer and a lower polarizer, and the upper polarizer, CF glass 200, TFT glass 100 and lower polarizer are stacked in sequence. The lower polarizer is used to convert the backlight source into polarized light, and the upper polarizer is used to analyze the polarized light to generate a display image.

[0033] A display module includes the above-mentioned liquid crystal display screen with high light utilization rate, and also includes a backlight module 20, which is arranged on one side of the liquid crystal display screen. The backlight module 20 provides light source for displaying on the liquid crystal display screen.

[0034] Furthermore, the display module also includes a cover plate, and the cover plate, the liquid crystal display screen and the backlight module 20 are stacked in sequence.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A liquid crystal display screen with high light utilization rate, characterized in that: include: TFT glass, wherein a pixel area and a non-pixel area are provided on the TFT glass; CF glass, the CF glass is arranged on one side of the TFT glass, a BM layer is arranged on the CF glass, and the position of the BM layer corresponds to covering the non-pixel area; and A horizontal diffusion film is disposed on the TFT glass and located on the non-pixel area, and is used to diffuse light on the non-pixel area to the pixel area.

2. The liquid crystal display screen with high light utilization rate according to claim 1, characterized in that: TFT components and a TFT wiring layer are arranged on the non-pixel area, and the TFT wiring layer is arranged around the pixel area.

3. The liquid crystal display screen with high light utilization rate according to claim 2, characterized in that: A plurality of pixel areas are provided, and each of the pixel areas is distributed in a rectangular array.

4. The liquid crystal display screen with high light utilization rate according to claim 3, characterized in that: The horizontal diffusion film is arranged on a side surface of the TFT glass close to the CF glass.

5. The liquid crystal display screen with high light utilization rate according to claim 4, characterized in that: The TFT components and the TFT wiring layer are respectively arranged on a side surface of the horizontal diffusion film away from the TFT glass.

6. The liquid crystal display screen with high light utilization rate according to claim 1, characterized in that: The TFT glass and the CF glass are adhered to form a box by using frame glue.

7. The liquid crystal display screen with high light utilization rate according to claim 1, characterized in that: One side of the TFT glass extends in a direction away from the CF glass to form a TFT binding single-layer area.

8. The liquid crystal display screen with high light utilization rate according to claim 1, characterized in that: It also includes an upper polarizer and a lower polarizer, and the upper polarizer, the CF glass, the TFT glass and the lower polarizer are stacked in sequence.

9. A display module, characterized in that: The liquid crystal display screen with high light utilization rate comprises the liquid crystal display screen as described in any one of claims 1 to 8, and further comprises a backlight module, wherein the backlight module is arranged on one side surface of the liquid crystal display screen.

10. The display module according to claim 9, characterized in that: It also includes a cover plate, and the cover plate, the liquid crystal display screen and the backlight module are stacked in sequence.

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