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An outdoor high-brightness LCD screen

A technology of LCD screen and high brightness, applied in instruments, static indicators, etc., can solve the problems of popular LCD screen resistance, high price, and blurred display patterns, and achieve the effect of fine picture quality, low cost and bright picture.

Active Publication Date: 2018-08-17
NINGBO MOBILETONE INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] LCD screens have been widely used outdoors. Samsung and AUO LCD screens with better quality are the most prominent in the market, but there are still: A-standard LCD screens with a maximum of about 700 lumens, outdoor display patterns are prone to blur, and the price is relatively high. There is some resistance to the popularization of LCD screen outdoor advertising industry

Method used

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  • An outdoor high-brightness LCD screen
  • An outdoor high-brightness LCD screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Participation figure 1 , an outdoor high-brightness LCD screen, which includes: bracket 1, drive control board 2, bottom case 3, reflective film 4, aluminum substrate and lamp beads 5, diffusion film 6, enhancement film 7, composite enhancement film 8, fixed frame 9. LCD screen glass 10;

[0024] The bracket 1 is used to support an outdoor high-brightness LCD screen;

[0025] The drive control board 2 is installed between the bracket 1 and the bottom case 3, and is used to drive the power of the aluminum substrate and the lamp bead 5;

[0026] The reflective film 4 is installed between the bottom case 3, the aluminum substrate and the lamp bead 5, and is used to uniformly reflect the light emitted by the LED lamp bead of the aluminum substrate and the lamp bead 5 to the diffusion film 6 ;

[0027] The aluminum substrate and the lamp bead 5 are installed between the bottom case 3 and the brightness enhancement film 7. The LED lamp bead is the light source o...

Embodiment 2

[0032] Example 2: Participation figure 1 , figure 2 , the above-mentioned outdoor high-brightness LCD screen, the drive control board 2 includes: a light collection module 21, an IC control module 22, an output feedback module 23, and a brightness adjustment module 24;

[0033] The light collection module 21 is used to collect the intensity of external light, and after the collected signal is photoelectrically converted, it is sent to the IC control module 22;

[0034] The IC control module 22 is used to receive the external light intensity signal sent by the light collection module 21, receive the feedback signal sent by the output feedback module 23, output a PWM signal to the brightness adjustment module 24, and adjust the brightness of the aluminum substrate. and the luminous intensity of the LED lamp bead of lamp bead 5;

[0035] The output feedback module 23 is used to collect the current intensity of the PWM signal output by the IC control module 22, and feed back th...

Embodiment 3

[0037] Example 3: Participation figure 1 , figure 2 , the above-mentioned outdoor high-brightness liquid crystal screen also includes: a plurality of said drive control boards 2 and synchronization boards 25;

[0038] The synchronization board 25 is used to synchronously control 4300-5500 LED lamp beads, the maximum brightness on the surface of the outdoor high-brightness LCD screen is 2000 lumens, and the brightness uniformity reaches more than 90%.

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Abstract

The invention discloses an outdoor high-brightness liquid crystal screen which comprises a bracket (1), a drive control board (2), a bottom shell (3), a reflecting film (4), an aluminum substrate and lamp beads (5), a diffusion film (6), a bright enhancement film (7), a composite bright enhancement film (8), a fixing frame (9) and liquid crystal screen glass (10). The outdoor high-brightness liquid crystal screen disclosed by the invention has multiple protection functions against reverse connection of input, short circuit, overvoltage and the like; multiple ICs can be synchronized to an external clock through each other to control 4,300-5,500 LED lamps, the highest brightness reaches 20,000 Lumen, the brightness uniformity can exceed 90%, and the picture is still bright and colorful when seen away under the sun; and moreover, the cost is low, the light sensing function is strong, and little light pollution is caused.

Description

technical field [0001] The invention belongs to the field of liquid crystal displays, in particular to an outdoor liquid crystal screen. Background technique [0002] LCD screens have been widely used outdoors. Samsung and AUO LCD screens with better quality are the most prominent in the market, but there are still: A-standard LCD screens with a maximum of about 700 lumens, outdoor display patterns are prone to blur, and the price is relatively high. There is some resistance to the popularization of LCD screen outdoor advertising industry. In view of the defects in the actual use of the above-mentioned outdoor commercial LCD screen, there is an urgent need for a high-brightness screen that can replace the outdoor LED screen. Contents of the invention [0003] The purpose of the present invention is to provide an outdoor high-brightness liquid crystal screen, the highest brightness reaches 2000 lumens, the picture is still colorful under the sun at a long distance, the dyn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406
Inventor 刘浩俞乐君董奇云
Owner NINGBO MOBILETONE INFORMATION TECH
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