Line structure of LED (Light Emitting Diode) lamp bars

A technology of LED light strips and circuit structures, applied in circuit layout, lighting devices, light sources, etc., can solve problems such as no backlight
CN102788331BActive Publication Date: 2014-04-09QISDA SUZHOU +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
QISDA SUZHOU
Publication Date
2014-04-09

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Abstract

The invention provides a line structure of LED (Light Emitting Diode) lamp bars. The line structure comprises a lead and at least two groups of lamp bar sub sections. Each lamp bar sub section comprises at least two LED light emitting units. The line structure of the LED lamp bars comprises at least a serially connected LED serial line which is connected in serial at intervals and at least two serially connected LED serial lines which are connected in serial in sections. According to the line structure of the LED lamp bars provided by the invention, the serially connected LED serial line which is connected in serial at intervals and the two serially connected LED serial lines which are connected in serial in sections are combined to reduce the influence that all of the sub sections of the lamp bars are free from backlights caused by fault open circuit of one LED light emitting unit in any one sub section of the lamp bars. Furthermore, corresponding backlights of sub sections of the lamp bars can be independently controlled to turn on and off through the serially connected LED serial line of each sub section so as to elastically adjust the backlight brightness of sub sections of local lamp bars.
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Description

technical field

[0001] The invention relates to a display device, in particular to a circuit structure of an LED light bar backlight source. Background technique

[0002] At present, the common LED light-bar design mostly adopts "segmented serial connection of LED serial lines" or "segmented series connection of LED serial lines" as the backlight source of the display device.

[0003] The LED light strip adopts the design structure of "segmented serial connection of LED serial lines", and multiple LED light-emitting units in the same series are arranged in the same segment, that is, all LED light-emitting units in each light bar segment are connected in series. , each light bar segment is independent of each other. Such as figure 1 As shown, for a simpler and clearer description of the segmented serial LED serial lines, A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4 It is an LED light-emitting unit. Four lamps (A1, A2, A3, A4), (B1, B2, B3, B4), (C1, C2, C...

Claims

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