Display device

[0012] Please refer to figure 2 , Which is a schematic cross-sectional view of a liquid crystal display according to a preferred embodiment of the present invention. The liquid crystal display 200 includes two display panels 210A and 210B, and a direct-down backlight assembly 220. The display panel 210A and the display panel 210B are opposite to each other, and the direct type backlight assembly 220 is disposed between the display panels 210A and 210B. The direct type backlight assembly 220 includes two optical films 223A and 223B, a plurality of light sources 222 and a lamp holder 221. The lamp holder 221 is used to place the light source 222, and the light source 222 is, for example, a number of cold cathode tubes arranged linearly in the lamp holder 221 to provide the display panel 210 with uniform and sufficient light for better display performance. Like quality. The optical film 223A is disposed between the light source 222 and the display panel 210A, and is used to uniformly diffuse and guide the light emitted from the light source 222 to the display panel 210A. The optical film 223B is disposed between the light source 222 and the display panel 210B, and is used to uniformly diffuse and guide the light emitted from the light source 222 to the display panel 210B. The optical film 223A and the optical film 223B have a multilayer structure, each of which includes a diffusing sheet, a prism sheet, and the like. In addition, the display panels 210A and 210B are electrically connected to the control circuit boards 225A and 225B, respectively, and the control circuits on the control circuit boards 225A and 225B can respectively control the arrangement direction of the liquid crystal molecules in each pixel of the display panels 210A and 210B. When the light passes through the display panels 210A and 210B, the corresponding screen will be displayed. Furthermore, based on the consideration that the liquid crystal display 200 has a double-sided display function, the control circuit boards 225A and 225B are preferably arranged on the sides of the liquid crystal display 200.

[0013] Please refer to image 3 , Which is a schematic cross-sectional view of another liquid crystal display according to a preferred embodiment of the present invention. The liquid crystal display 300 includes two display panels 310A and 310B, and a direct-down backlight assembly 320. The display panel 310A and the display panel 310B are opposite to each other, and the direct type backlight assembly 320 is disposed between the display panels 310A and 310B. The direct type backlight assembly 320 includes two optical films 323A and 323B, a reflective sheet 324, a plurality of light sources 322 and a lamp holder 321. The lamp holder 321 is used to place the light source 322, and the light source is, for example, a number of cold cathode tubes, which are arranged linearly in the lamp holder 321 to provide the display panel 310 with uniform and sufficient light for better display performance quality. The optical film 323A is disposed between the light source 322 and the display panel 310A to uniformly diffuse and guide the light emitted from the light source 322 to the display panel 310A. The optical film 323B is disposed between the light source 322 and the display panel 310B to uniformly diffuse and guide the light emitted from the light source 322 to the display panel 310B. The optical film 323A and the optical film 323B have a multilayer structure, each of which includes a diffusion sheet, a prism sheet, and the like. In addition, the display panels 310A and 310B are electrically connected to the control circuit boards 325A and 325B, respectively, and the control circuits on the control circuit boards 325A and 325B can respectively control the arrangement direction of the liquid crystal molecules in each pixel of the display panels 310A and 310B. When the light passes through the display panels 310A and 310B, the corresponding screen will be displayed. Furthermore, based on the consideration that the liquid crystal display 300 has a double-sided display function, the control circuit boards 325A and 325B are preferably arranged on the sides of the liquid crystal display 300.

[0014] Here, the liquid crystal display 300 and the preferred embodiment, namely figure 2 The difference between the liquid crystal display 200 shown in the figure is that the liquid crystal display 300 is additionally provided with a reflective sheet 324 between two adjacent light sources 322 to reflect light to increase the use efficiency of the light source 322. The material of the reflector 324 is a material with high reflectivity, and the material with high reflectivity is sputtered to form the reflector 324 on the lamp holder 321.

[0015] The liquid crystal display disclosed in the above-mentioned embodiments of the present invention, through the combination of two display panels and a direct-down backlight assembly, can make the light emitted by the light source diverge to both sides of the backlight assembly, and pass through the optical films on both sides, uniformly The ground spreads to the two display panels to achieve the effect of double-sided display. At the same time, because the direct type backlight assembly has better light uniformity and better display quality than the side type backlight assembly, it is better applicable to large-size displays.

[0016] The advantage of the liquid crystal display of the present invention is that a single liquid crystal display has a double-sided display function, which can not only replace two separate single-sided displays, but also saves manufacturing costs due to the sharing of backlight components in the liquid crystal display. Compared with two separate single-sided displays with a light body design, the liquid crystal display of the present invention has more excellent portability. In addition, because the present invention adopts the design of direct-lit backlight assembly, the present invention can be applied to large-size displays.

[0017] Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and it should be understood that various changes and modifications can be made therein. In a broad sense, it does not depart from the present invention, so it is not a limitation of the present invention. As long as it is within the essential spirit of the present invention, changes and modifications to the above-mentioned embodiments will fall within the scope of the claims of the present invention.