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Driving control circuit for a great many of backlight partitions, and display device

A technology for driving control circuits and backlight partitions, applied to static indicators, instruments, etc., can solve the problems of high product cost, large number of driving ICs, complex manufacturing process, etc., and achieve a reduction in quantity, operability, and outstanding functions Effect

Inactive Publication Date: 2019-04-26
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] It can be seen that the traditional backlight LED drive control method requires a large number of drive ICs, high product costs, and complicated manufacturing processes.

Method used

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  • Driving control circuit for a great many of backlight partitions, and display device
  • Driving control circuit for a great many of backlight partitions, and display device
  • Driving control circuit for a great many of backlight partitions, and display device

Examples

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Embodiment

[0026] Such as Figure 3-Figure 5 As shown, a super multi-backlight partition driving control circuit includes multiple backlight sources, multiple drive ICs and multiple switch control devices. The multiple backlight sources are divided into multiple groups, and each group of backlight sources is connected in the form of rows and columns. And driven by the same driver IC, wherein the number of rows of each group of backlight is N, the number of columns of each group of backlight is the same as the number of driving channels of the driver IC, and each row of backlight is equipped with The switch control device, wherein each backlight source in each row of backlight sources is arranged between the output terminal of the row switch control device and each input terminal of the drive IC, and the switch control device is used to individually control the All the backlights of the row are turned on or off at the same time; in the same driving period T, the time for the switch contro...

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PUM

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Abstract

The invention discloses a driving control circuit for a great many of backlight partitions, the circuit comprises a plurality of backlight sources, a plurality of driving ICs and a plurality of on-offcontrol device, the plurality of backlight sources are divided into multiple groups, each group of the backlight sources are connected in lines and rows and driven by the same driving IC, wherein thenumber of lines of each group of the backlight sources is N, the number of rows of each group of the backlight sources is same as the number of driving paths of the driving IC, each line of the backlight sources is provided with the on-off control device, wherein each backlight source in each line of the backlight sources is arranged between an output end of the on-off control device and an inputend of each path of the driving IC; within the same driving cycle T, on time of the on-off control device of each line of the N lines of the backlight sources is T / N, and at the same moment, only theon-off control device corresponding to one of the N lines of the backlight sources is in an on state. With the circuit provided by the invention, the number of the backlight partition driving ICs isreduced and cost is reduced, technological flows are also reduced at the same time, and production operability is increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a super multi-backlight partition driving control circuit and a display device. Background technique [0002] In the field of display technology, there are currently several mainstream display technologies: LCD, OLED, Micro LED and Mini LED. [0003] The traditional LCD is the abbreviation of Liquid Crystal Display, that is, liquid crystal display, which uses the display principle that liquid crystal will present different optical characteristics under the action of different voltages. [0004] OLED, Organic Light-Emitting Diode, organic electro-laser display, utilizes organic light-emitting diodes with self-luminous properties, using very thin organic material coatings and glass substrates. Compared with traditional LCD, OLED display technology has the advantages of self-illumination, wide viewing angle, almost infinitely high contrast, lower power consumption, and extremely h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/342
Inventor 郑晓丽史青王鹏
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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