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Contrast enhancement method of and contrast enhancement device

A display device and local enhancement technology, applied to instruments, static indicators, etc., can solve the problem of increased power consumption of liquid crystal displays

Active Publication Date: 2016-08-24
SITRONIX TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, increasing the brightness of the backlight of the LCD wil

Method used

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  • Contrast enhancement method of and contrast enhancement device
  • Contrast enhancement method of and contrast enhancement device
  • Contrast enhancement method of and contrast enhancement device

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Embodiment Construction

[0042] Please refer to figure 1 , figure 1 It is a schematic diagram of a contrast enhancement device 10 according to Embodiment 1 of the present invention. The contrast enhancement device 10 can be used in electronic products with liquid crystal panels such as liquid crystal displays, smart mobile phones, smart TVs, and tablet computers. Such as figure 1 As shown, the contrast enhancement device 10 includes an average brightness calculation unit 100 , a gray scale distribution counting unit 102 , a gain curve generation module 104 and an interpolation unit 106 . After receiving an image IMG with a plurality of pixels P1-Pn, the contrast enhancement device 10 uses the average brightness calculation unit 100 and the gray scale distribution counting unit 102 to calculate the average value of the brightness values ​​Y1-Yn of the pixels P1-Pn as a whole The brightness average GAVG and the distribution of statistical brightness values ​​Y1~Yn. According to the overall brightnes...

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Abstract

The present invention discloses a contrast enhancement method of and a contrast enhancement device. The contrast enhancement method comprises a step of receiving an image with multiple pixels, a step of counting the average value of the multiple pixels to be a total brightness average value, a step of generating a gain curve according to the total brightness average value, a step of counting the pixel numbers of the multiple pixels corresponding to the multiple brightness values, a step of adjusting the gain curve according to the pixel numbers of the multiple pixels corresponding to the multiple brightness values, and a step of using the gain curve to adjust the brightness value of each pixel so as to generate a total enhancement image.

Description

technical field [0001] The invention relates to a contrast enhancement method and a contrast enhancement device for an electronic product with a display panel, in particular to a contrast enhancement method and a contrast enhancement device capable of improving the effective contrast ratio of an electronic product with a display panel. Background technique [0002] Liquid Crystal Display (LCD) has the advantages of thin and light appearance, low radiation, small size and low energy consumption, and is widely used in information products such as notebook computers and flat-screen TVs. Therefore, liquid crystal displays have gradually replaced traditional cathode ray tube displays (Cathode Ray Tube Display) to become the mainstream of the market, and active matrix thin film transistor liquid crystal displays (ActiveMatrix TFT LCD) are the most popular. In simple terms, the driving system of the active matrix thin film transistor liquid crystal display is composed of a timing c...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/20
Inventor 王信中
Owner SITRONIX TECH CORP