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Lamp and method for eliminating low-ash shaking of LED display

A technology of LED lamps and lamps, which is applied in the direction of electrical components, etc., and can solve the problems of increasing the cost of lamps and the like

Active Publication Date: 2020-07-14
深圳智芯半导体科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a lamp and method for solving the jitter of LED in the low gray segment at the LED lamp end, without increasing the cost of the lamp, and without causing the problem of smearing, and eliminating the display of the LED low gray segment Jitter problem

Method used

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  • Lamp and method for eliminating low-ash shaking of LED display
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  • Lamp and method for eliminating low-ash shaking of LED display

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Such as Figure 1 to Figure 5 As shown, a specific embodiment of the present invention, a lamp and method for eliminating low gray jitter of LED display, includes an LED lamp unit, and the LED lamp unit is composed of a power supply module, a decoding module and a display module, and the power supply module is used for the decoding module and display Module power supply, decoding module includes decoding chip U1, capacitor C1 and resistors R1, R2, R3, decoding chip U1 includes data frame interval measurement unit, data frame decoding unit, PWM refresh frequency configuration unit, PWM duty c...

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Abstract

The invention relates to a lamp and method for eliminating low-ash shaking of LED display. An LED lamp unit comprises a power supply module, a decoding module and a display module; the decoding modulereceives the data sent by the controller end and generates a PWM control signal; the PWM control signal outputs a duty ratio, wherein the duty ratio is switched back and forth between the two PWM outputs of the previous frame of data and the current data, so as to achieve the smooth transition between two gray scales, and to solve the problem of low-ash shaking of LED display; the solution is implemented on the LED lamp, and the controller does not need to be specially processed and can be compatible with a universal controller, so the problem of shaking of a high-power LED during low-gray gradual change is solved on the premise that the cost is not increased, the smear problem caused by a common data frame insertion method is solved, the display quality is improved, and the reliability is improved.

Description

technical field [0001] The invention relates to the technical field of LED lighting display, more specifically to a lamp and a method for eliminating low-gray jitter of LED display. Background technique [0002] Existing LEDs have been widely used in stage lighting, urban landscape lighting and other fields because of their advantages such as long service life, energy saving and environmental protection, and pure and thick colors. Among them, stage lights and floodlights in the field of landscape lighting need to use high-power LEDs to meet the high brightness requirements of lamps. As the brightness of the lamp increases, the brightness difference between two adjacent gray scales also increases accordingly. Especially in the low gray segment, even if the brightness of the gamma-corrected 65536-level gray-scale lamp itself is small, the same brightness change is easier to be captured by the human eye. The light shakes slightly, which affects the display effect. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/325
Inventor 谢靖方曙吴东生
Owner 深圳智芯半导体科技有限公司
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