A liquid crystal imaging device

Abstract

The present invention discloses a liquid crystal imaging device, which includes a liquid crystal panel, a backlight assembly, and a light shielding device; the liquid crystal panel is connected to the backlight assembly in a matching manner; the light shielding device is disposed on the path that the light emitted by the backlight assembly needs to pass through to reach the liquid crystal panel. After the structure of the present invention is used for simulating imaging, by arranging a shielding device consistent with the imaging effect to be displayed on the path that the light emitted by the backlight source of the backlight assembly needs to pass through to reach the liquid crystal panel, the liquid crystal panel cannot receive light in the areas where imaging is not required, so that a weak light area cannot be formed on the front surface of the liquid crystal panel, thereby making the color of the lightless area formed by the border of the backlight panel tend to be consistent, enhancing the overall coordination, improving the viewing effect, and being applicable to the use of most analog imaging devices, such as the flame analog imaging of an electric fireplace.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging devices, and particularly to a liquid crystal imaging device. Background Art

[0002] In production and life, we will use various imaging devices, such as advertising light boxes, flame simulation imaging of electric fireplaces, etc. Among them, liquid crystal imaging devices are becoming more and more popular due to their low power consumption, small size and low radiation.

[0003] In the current technology, due to the need for liquid crystal display, a general liquid crystal imaging device includes a liquid crystal panel and a backlight assembly. The backlight assembly emits uniform light, and this light enters the liquid crystal panel. Through the selective filtering of light by the liquid crystal panel, various rich images are formed on the front of the liquid crystal panel. However, in actual use, when playing a flame image, the imaging pattern to be displayed often does not cover the entire display screen. Especially when simulating real flame combustion in an electric fireplace, a black effect is usually required in the area without flames. In the current technology, in the area where light is not required, even if it is selected to completely block the light from passing through, there is still actually a weak light passing through the liquid crystal panel, forming a dim and weak light area. In addition, due to the existence of certain frames or other structural components in the backlight assembly, etc., the projection of these frames or other structural components on the front of the liquid crystal panel will form some lightless areas. These lightless areas have no light projection at all, and will form a color difference contrast with the weak light area, further affecting the overall viewing effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the technical defects of the background art and provide a liquid crystal imaging device. After the structure of the present invention is used for simulation imaging, by arranging a shielding device consistent with the imaging effect to be displayed on the path that the light emitted by the backlight source of the backlight assembly needs to pass through to the liquid crystal panel, the liquid crystal panel cannot receive light in the area where imaging is not required, so that a weak light area cannot be formed on the front of the liquid crystal panel, and thus the color tends to be consistent with the lightless area formed by the frame of the backlight panel, enhancing the overall coordination and improving the viewing effect, and being applicable to the use of most simulation imaging devices, such as flame simulation imaging of electric fireplaces.

[0005] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0006] A liquid crystal imaging device includes a liquid crystal panel, a backlight assembly, and a light-shielding device; the liquid crystal panel is connected to the backlight assembly in a matching manner; the liquid crystal panel is a panel made by various existing technologies for selectively filtering visible light using liquid crystals; the light-shielding device is disposed on the path that the light emitted by the backlight assembly needs to pass through to the liquid crystal panel, and the light-shielding device blocks part of the light emitted by the backlight assembly from being projected into the interior of the liquid crystal panel.

[0007] Further, the inner contour of the light-shielding device matches the pattern to be imaged on the liquid crystal panel.

[0008] Further, the light-shielding device is disposed between the liquid crystal panel and the backlight assembly or the light-shielding device is disposed inside the backlight assembly.

[0009] Further, the light-shielding device includes a coating disposed on the top and / or side of the back of the liquid crystal panel.

[0010] Further, the backlight assembly includes a light source, a diffusion plate connected to the light source in a matching manner, and a frame respectively connected to the light source and the diffusion plate in a matching manner; the light-shielding device includes a coating disposed on the top and / or side of the front and / or back of the diffusion plate.

[0011] Further, the backlight assembly includes a light source, a diffusion plate connected to the light source in a matching manner, a light guide plate disposed between the light source and the diffusion plate, and a frame respectively connected to the light source, the diffusion plate, and the light guide plate in a matching manner; the light-shielding device includes a coating disposed on the top and / or side of the front of the light guide plate.

[0012] Further, the process used for the coating is spraying or plating or printing.

[0013] Further, the inner edge of the light-shielding device is gradual, that is, the inner edge of the light-shielding device does not completely block the light, but partially blocks the light.

[0014] Further, the liquid crystal imaging device includes a control device; the control device is respectively connected to the liquid crystal panel and the backlight assembly in a matching manner; the control device can control the selective filtering of light by each liquid crystal unit on the liquid crystal panel, so as to image the backlight source provided by the backlight assembly, and further form an imaging effect to be played on the liquid crystal panel; and the light-shielding device can perform light-shielding treatment on the area where the imaging picture does not need to be played, and at the same time, the light-shielding device can block the frame on the backlight assembly, so that the color appearance of the liquid crystal imaging device tends to be consistent outside the area where the imaging is to be displayed.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] For a liquid crystal imaging device provided by the present invention, due to the arrangement of the light shielding device, a weak light area cannot be formed in the area where imaging and playback are not required (the projection of the weak light area usually affects the viewing effect), and structural components such as the frame behind the liquid crystal panel will not form a projection on the weak light area of the liquid crystal panel, thereby greatly improving the imaging viewing effect of the liquid crystal imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention;

[0018] Figure 2 It is a three-dimensional exploded structural schematic diagram of Embodiment 1 of the present invention;

[0019] Figure 3 It is a semi-sectional exploded structural schematic diagram of Embodiment 1 of the present invention;

[0020] Figure 4 It is a semi-sectional structural schematic diagram of Embodiment 1 of the present invention;

[0021] Figure 5 It is a partial enlarged schematic diagram of Part A of Embodiment 1 of the present invention;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of Embodiment 1 installed in an electric fireplace;

[0023] Figure 7 It is a three-dimensional exploded structural schematic diagram of Embodiment 2 of the present invention;

[0024] Figure 8 It is a semi-sectional exploded structural schematic diagram of Embodiment 2 of the present invention;

[0025] Figure 9 It is a three-dimensional exploded structural schematic diagram of Embodiment 3 of the present invention;

[0026] Figure 10 It is a semi-sectional exploded structural schematic diagram of Embodiment 3 of the present invention.

[0027] The corresponding component names for the reference numerals in the drawings are:

[0028] 1 - liquid crystal panel; 2 - backlight assembly; 21 - light source; 22 - diffusion plate; 23 - frame; 24 - light guide plate; 3 - light shielding device; 4 - control device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To better understand the content of the present invention, the following further explains with specific embodiments and drawings. It should be understood that these embodiments are only used to further illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content described in the present invention, those skilled in the art make some non-essential changes or adjustments to the present invention, which still fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] As Figures 1 to 6 shown, a liquid crystal imaging device includes a liquid crystal panel 1, a backlight assembly 2, and a light-shielding device 3. The liquid crystal panel 1 is an LCD display screen made by various existing technologies of selectively filtering visible light using liquid crystals. The backlight assembly 2 includes a light source 21, a diffusion plate 22, and a frame 23. The light source 21 and the diffusion plate 22 are fixedly assembled together by the frame 23. In this embodiment, the light-shielding device 3 is a coating printed on the diffusion plate 22 and is located at the top and side of the diffusion plate 22. The edge of the light-shielding device 3 is gradual, initially partially blocking light until it gradually becomes completely blocking light, and the coverage range of the light-shielding device 3 overlaps with the projection range of the frame 23 of the backlight assembly 2 to form a continuous area.

[0032] After the control device 4 controls the light source 21 to emit light, through the further action of the diffusion plate 22, the light is scattered, making the light more uniform and soft and emitted from the front of the diffusion plate 22. However, due to the light-shielding effect of the light-shielding device 3, no light can be emitted from the top and side of the diffusion plate 22, thereby forming a lightless area in the imaging area of the liquid crystal panel 1, which is connected to the lightless area formed by the projection of the frame 23 to avoid the appearance of color difference.

[0033] As Figure 6 shown, it is the application of this embodiment when installed on an electric fireplace.

[0034] Embodiment 2

[0035] As Figures 7 to 8 shown, a liquid crystal imaging device. Compared with Embodiment 1, the light-shielding device 3 in this embodiment is a separate component and is arranged between the diffusion plate 22 and the liquid crystal panel 1. The light-shielding device 3 is made of an opaque material, and its inner contour is set to a shape matching the pattern to be imaged.

[0036] Embodiment 3

[0037] As Figures 9 to 10 shown, a liquid crystal imaging device. Compared with Embodiment 1, the backlight assembly 2 further includes a light guide plate 24. The light guide plate 24 is arranged between the light source 21 and the diffusion plate 22. The light-shielding device 3 is a coating printed on the back of the liquid crystal panel 1.

[0038] After the control device 4 controls the light source 21 to emit light, the light is guided by the light guide plate 24 to be evenly distributed in the plane of the entire light guide plate 24. The light exits from the front surface of the light guide plate 24 and enters the diffusion plate 22. Through the further action of the diffusion plate 22, the light is scattered, making the light more uniform and soft, and then exits from the front surface of the diffusion plate 22. However, due to the light shielding effect of the light shielding device 3, the top and side portions of the liquid crystal panel 1 cannot receive light, thus forming a lightless area in the imaging area of the liquid crystal panel 1, which is then connected to the lightless area formed by the projection of the frame 23, avoiding the appearance of color difference.

[0039] The above description is not a limitation of the present invention, nor is the present invention limited to the above examples. Changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention shall also fall within the protection scope of the present invention.

Claims

1. A liquid crystal imaging device for flame simulation imaging of an electric fireplace, characterized in that, it includes a liquid crystal panel (1), a backlight assembly (2) and a light shielding device (3); the liquid crystal panel (1) is connected to the backlight assembly (2) in a matching manner; the light shielding device (3) is arranged on the path that the light emitted by the backlight assembly (2) needs to pass through to reach the liquid crystal panel (1); the inner contour of the light shielding device (3) is matched with the pattern to be imaged on the liquid crystal panel (1); the inner edge of the light shielding device (3) is gradual, partially blocking the light.

2. A liquid crystal imaging device according to claim 1, characterized in that, the light shielding device (3) is arranged between the liquid crystal panel (1) and the backlight assembly (2) or the light shielding device (3) is arranged inside the backlight assembly (2).

3. A liquid crystal imaging device according to claim 2, characterized in that, the light shielding device (3) includes a coating provided on the top and / or side of the back of the liquid crystal panel (1).

4. A liquid crystal imaging device according to claim 2, characterized in that, the backlight assembly (2) includes a light source (21), a diffusion plate (22) connected to the light source (21) in a matching manner, and a frame (23) connected to the light source (21) and the diffusion plate (22) in a matching manner respectively; the light shielding device (3) includes a coating provided on the top and / or side of the front and / or back of the diffusion plate (22).

5. A liquid crystal imaging device according to claim 2, characterized in that, the backlight assembly (2) includes a light source (21), a diffusion plate (22) connected to the light source (21) in a matching manner, a light guide plate (24) arranged between the light source (21) and the diffusion plate (22), and a frame (23) connected to the light source (21), the diffusion plate (22) and the light guide plate (24) in a matching manner respectively; the light shielding device (3) includes a coating provided on the top and / or side of the front of the light guide plate (24).

6. A liquid crystal imaging device according to any one of claims 3 to 5, characterized in that, the process adopted by the coating is spraying or plating or printing.

7. A liquid crystal imaging device according to claim 1, characterized in that, the liquid crystal imaging device includes a control device (4); the control device (4) is connected to the liquid crystal panel (1) and the backlight assembly (2) in a matching manner respectively.

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