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Direct type backlight light emitting diode display and light emitting control method

A light-emitting diode, direct-type technology, applied in the direction of cathode ray tube indicators, static indicators, instruments, etc., to achieve the effect of improving brightness, brightness uniformity, and enhancing brightness uniformity

Pending Publication Date: 2022-08-05
WISTRON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Therefore, the cost of maintenance is considerable

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  • Direct type backlight light emitting diode display and light emitting control method
  • Direct type backlight light emitting diode display and light emitting control method
  • Direct type backlight light emitting diode display and light emitting control method

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Embodiment Construction

[0101] Please refer to figure 1 , which is a schematic diagram of the structure of a direct type backlight LED display according to some embodiments. The direct type backlight LED display 100 includes a backlight panel 110 , a driving circuit 120 , a detection circuit 130 and a control circuit 140 . The backlight panel 110 is coupled to the driving circuit 120 , the detection circuit 130 and the control circuit 140 , and the control circuit 140 is coupled to the driving circuit 120 and the detection circuit 130 respectively. The backlight panel 110 includes a plurality of light-emitting diodes (LEDs). In some embodiments, the backlight panel 110 includes a first light-emitting group 311 and a second light-emitting group 312 , the first light-emitting group 311 includes a plurality of first light-emitting diodes 321 , and the second light-emitting group 312 includes a plurality of second light-emitting diodes 322 . The first light-emitting group 311 and the light-emitting dio...

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Abstract

The invention discloses a direct type backlight light-emitting diode display and a light-emitting control method, the light-emitting control method is suitable for the direct type backlight light-emitting diode display, and the direct type backlight light-emitting diode display comprises a backlight plate, a driving circuit, a detection circuit and a control circuit. The backlight plate is provided with a first light-emitting group and a second light-emitting group, and a plurality of first light-emitting diodes of the first light-emitting group and a plurality of second light-emitting diodes of the second light-emitting group are arranged in a staggered mode. The driving circuit is used for being actuated to selectively drive the first light-emitting group and the second light-emitting group to emit light; when the detection circuit detects that any one of the light emitting diodes is in an abnormal state, the detection circuit sends an abnormal signal. The control circuit obtains a turn-off group according to the abnormal signal, the turn-off group is the light-emitting group where the light-emitting diode in the abnormal state is located, and the control circuit actuates the driving circuit not to drive the turn-off group to emit light.

Description

technical field [0001] The invention relates to a liquid crystal display and a control method, in particular to a direct type backlight LED display and a lighting control method. Background technique [0002] The rise of liquid crystal display (Liquid-Crystal Display, LCD) products drives the rapid development of backlight technology. At present, the backlight technology is divided into edge lit and direct lit. The difference between the two backlight technologies lies in the different placement positions of the light sources in the backlight panel, and this difference makes the display brightness and uniformity of the display panel different. [0003] For the direct type backlight, the backlight panel is disposed behind the display panel. Since the display panel is directly illuminated by the rear light source, the direct-lit display has the characteristics of high brightness and uniform light transmission. However, when any one of the light-emitting diodes in the backli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406G09G3/3413G09G2320/0233G02F1/133603G02F2201/58G02F1/13318G02F2203/69G09G3/3426G09G2360/145G09G2360/141G09G2330/12G09G2320/043G09G5/10G09G3/36
Inventor 张耀宗高全渊陈宥霖
Owner WISTRON CORP
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