[0027] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.
[0028] In the present invention, if no explanation is made to the contrary, the positional words included in the term such as "up, down, inside, and outside" only represent the position of the term under normal use, or are understood by those skilled in the art It should not be regarded as a restriction on the term.
[0029] Such as figure 1 with figure 2 As shown, the present invention provides a bottom backlight device with viewing angle deflection. The bottom backlight device with viewing angle deflection includes: an LED lamp 2, a support 3, and a diffuser 1; a plurality of the LED lamps 2 are arranged at equal intervals , And distributed in a straight line; the LED lamp 2 is provided with the diffusion plate 1 directly above, the bottom of each LED lamp 2 is provided with the support 3, the support is in contact with the LED lamp 2 The surface is inclined so that the normal light emitted by the LED lamp 2 forms an angle α with the vertical direction, and the diffused light after the normal light passes through the diffuser plate 1 forms an angle β with the vertical direction, and
[0030] According to the above technical solution, the bottom backlight device with viewing angle deflection provided by the present invention can satisfy the utilization ratio of the display device in a specific environment and achieve the best effect when in use. For the diffuser plate, due to the great difference in the material of the diffuser plate, after the collimated beam passes through the diffuser plate, the center of the spot will have a certain deflection angle from the original incident direction, that is, α≠β. Therefore, in the present invention, we require the β angle to meet the following requirements for the diffuser The bottom backlight device with viewing angle deflection provided by the present invention realizes viewing angle deflection by changing the light-emitting angle of the LED lamp during use, without reducing the light effect of the backlight source, so that the direction of the maximum brightness of the display is consistent with the line of sight of the observer. In this way, the full utilization of light at a specific angle can be achieved to meet the display needs of vehicle-mounted, air-borne, and ship-borne use environments.
[0031] For the diffuser plate, due to the great difference in the material of the diffuser plate, after the collimated light beam passes through the diffuser plate, the center of the spot will have a certain deflection angle from the original incident direction. In a preferred embodiment of the present invention, the clamp The relationship between the angle α and the included angle β is:
[0032] In a preferred embodiment of the present invention, the support 3 is made of conductive materials such as metal and conductive glue, so as to facilitate the normal operation of the LED lamp 2.
[0033] In a preferred embodiment of the present invention, the support 3 and the LED lamp 2 are in a snap connection, the support 3 is provided with an LED drive circuit, and the LED lamp 2 is connected to the LED lamp 2 The LED driving circuit is electrically connected. This structure facilitates the disassembly and assembly of the LED lamp 2, and the LED driving circuit is used to drive the LED lamp 2 to work.
[0034] In a preferred embodiment of the present invention, the angle of the contact surface between the support body 3 and the LED lamp 2 can be adjusted. Under different use environments, it is convenient to adjust the angle of the LED lamp 2 to emit light, so as to achieve The best display effect.
[0035] In a preferred embodiment of the present invention, the supporting body 3 includes: a bottom plate 301 and an adjusting plate 304; one side of the adjusting plate 304 is hinged to the upper surface of the bottom plate 301 through a hinge 303, and The adjusting plate 304 can rotate around the hinge 303, and the angle formed between the adjusting plate 304 and the upper surface of the bottom plate 301 can be fixed.
[0036] In a preferred embodiment of the present invention, the upper surface portion of the bottom plate 301 is recessed inward to form a groove 302, the adjusting plate 304 is hinged in the groove 302, and the adjusting plate 304 can be completely stored in the groove 302. In the groove 302, this structure enables the adjustment range of the adjustment plate 304 to be larger and the applicable range is wider.
[0037] In a preferred embodiment of the present invention, the side surface of the bottom plate 301 is provided with a protractor that cooperates with the adjusting plate 304, so as to facilitate the staff to adjust the angle of the adjusting plate 304 more prepared.
[0038] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, many simple modifications can be made to the technical solutions of the present invention. These simple modifications belong to the protection scope of the present invention.
[0039] In addition, it should be noted that the various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention is The combination method will not be explained separately.
[0040] In addition, various different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the content disclosed in the present invention.
