Three-color light-emitting diode (LED) direct backlight control method for three-dimensional (3D) display

A backlight control and direct-lit technology, applied in the field of 3D display, can solve the problems of poor uniformity of white field brightness, thin backlight source, and high cost, and achieve strong image stereoscopic effect, real and more obvious visual effect

Inactive Publication Date: 2013-08-14
IRICO
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristic of side light (in) type LED backlight is that the backlight can be made thinner and the cost is low, but the brightness uniformity of the white field is poor
The direct type LED backlight is characterized by good brightness uniformity in the white field, and dynamic dimming can be performed by partition, but the backlight cannot be made thin and the cost is high

Method used

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  • Three-color light-emitting diode (LED) direct backlight control method for three-dimensional (3D) display
  • Three-color light-emitting diode (LED) direct backlight control method for three-dimensional (3D) display
  • Three-color light-emitting diode (LED) direct backlight control method for three-dimensional (3D) display

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Embodiment Construction

[0015] Please refer to figure 1 , according to a kind of three-color LED direct type backlight control method for 3D display of the present invention, it is carried out according to the following steps:

[0016] Step 1: Turn on the power and drive the white LED to light up according to the brightness of the reset value.

[0017] Step 2: the control device FPGA of the control unit reads the video signal of the video decoding board, that is, the video signal of the video signal processing unit, and if it is found to be a 3D video signal, the 3D backlight algorithm is turned on (step 3-5).

[0018] Step 3: The control device FPGA detects the video signal data, and compares the separation degree of the left and right eye images to determine the depth of field range. The high separation degree is the foreground, detects the color of each pixel in the foreground image, and drives the three-color LED backlight in the corresponding area to display the corresponding Color, improve the...

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Abstract

The invention provides a three-color light-emitting diode (LED) direct backlight control method for three-dimensional (3D) display. By the method, the degree of separation of a left eye picture and a right eye picture is detected to determine a scene depth range, so that backlight colors and luminance values are output in areas according to the scene depth range, and the aim of providing a truer and more obvious visual effect for a 3D display picture is fulfilled.

Description

technical field [0001] The invention relates to the technical field of 3D display, in particular to a three-color LED direct-lit backlight control method for 3D display. Background technique [0002] LCD display technology, as a non-self-illuminating display technology, needs a backlight source to realize the display function. With the continuous development of liquid crystal display technology, the application fields of liquid crystal displays, especially color liquid crystal displays, are also constantly expanding. Driven by the liquid crystal display market, the backlight industry is also showing prosperity. LED backlights are generally divided into two types according to the position of the light source, one is side-lit LED backlight, and the other is direct-lit LED backlight. The characteristic of side light (in) type LED backlight is that the backlight can be made thinner and the cost is low, but the brightness uniformity of the white field is poor. The direct type ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
Inventor 谷原
Owner IRICO
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