A method and device for calibrating the backlight brightness of a switch panel

A switch panel and backlight brightness technology, which is applied to the calibration method and device field of switch panel backlight brightness, can solve problems such as poor consistency of backlight brightness, and achieve the effect of solving poor consistency of backlight intensity

Active Publication Date: 2021-06-29
天津经纬恒润科技有限公司
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  • Abstract
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Problems solved by technology

[0002] At present, the core device that provides backlight for the switch panel is the light-emitting diode. Factors such as the relevant parameters of the light-emitting diode, panel structure, and material will affect the actual brightness of the backlight. Without calibration, the brightness consistency of the backlight of the same batch of products will be poor. Therefore, for The brightness calibration of the switch panel is very necessary

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  • A method and device for calibrating the backlight brightness of a switch panel
  • A method and device for calibrating the backlight brightness of a switch panel
  • A method and device for calibrating the backlight brightness of a switch panel

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] see figure 1 , figure 1 It is an implementation flowchart of a method for calibrating the backlight brightness of a switch panel provided by an embodiment of the present invention, the method includes:

[0054] Step S101, obtaining the backlight intensity of the preset position corresponding to the LED on the switch panel.

[0055] The backlight intensity is the backlight intensity at the preset position of the light-emitting panel produ...

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Abstract

The invention discloses a method and device for calibrating the backlight brightness of a switch panel. The method includes: obtaining the backlight intensity at a preset position corresponding to a light-emitting diode on the switch panel; judging whether the backlight intensity is within the standard backlight intensity range; if not, Determine the calibrated duty cycle according to the backlight intensity, the first standard duty cycle, and the light intensity standard median value in the standard backlight intensity range, and replace the first standard duty cycle with the calibrated duty cycle. The calibration method and device of the present invention calibrate the duty ratio of the control light-emitting diodes, and adjust the actual backlight intensity of the switch panels that do not meet the standard backlight intensity range under typical voltages by adjusting the duty ratio of the control diodes. Adjust to the standard backlight intensity range, which solves the problem of poor consistency of backlight intensity in the same batch of products.

Description

technical field [0001] The invention relates to the technical field of automobile interior decoration, in particular to a calibration method and device for backlight brightness of a switch panel. Background technique [0002] At present, the core device that provides backlight for the switch panel is the light-emitting diode. Factors such as the relevant parameters of the light-emitting diode, panel structure, and material will affect the actual brightness of the backlight. Without calibration, the brightness consistency of the backlight of the same batch of products will be poor. Therefore, for The brightness calibration of the switch panel is very necessary. Contents of the invention [0003] In order to solve the above technical problems, the embodiment of the present invention provides a method and device for calibrating the backlight brightness of the switch panel, and the technical solution is as follows: [0004] A method for calibrating the backlight brightness of...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01J1/42H05B45/10H05B44/00
CPCG01J1/42H05B45/10Y02B20/30
Inventor王淑娜孙霖霖张磊
Owner天津经纬恒润科技有限公司