Liquid crystal display device and processing method of digital image signal
A liquid crystal display device, digital image technology, applied in identification devices, static indicators, instruments, etc., can solve problems such as unfavorable implementation, low backlight brightness, loss of image details, etc., to avoid image contrast reduction, expand image range, and easily The effect of hardware implementation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0065] Example 1
[0066] This embodiment provides a liquid crystal display device, such as figure 1 As shown, it includes: liquid crystal drive module 15, backlight drive module 16, liquid crystal panel 18 and LED backlight 17, image signal receiving module 10, image buffer module 11, image analysis module 12, backlight brightness calculation module 13, LCD gray scale calculation module 15. The image signal receiving module 10 is connected to the image buffer module 11 and the image analysis module 12 respectively, and is used to provide digital image signals to the image buffer module 11 and the image analysis module 12; the image buffer module 11 is connected to the liquid crystal gray scale calculation module 14, Used to receive and buffer digital image signals for the liquid crystal gray scale calculation module 14 to adjust the liquid crystal gray scale; the image analysis module 12 is connected to the backlight brightness calculation module 13 to receive digital image sign...
Example Embodiment
[0067] Example 2
[0068] On the basis of Example 1, such as figure 2 As shown, preferably, in this embodiment, a brightness signal calculation unit 121, an average value calculation unit 124, and a maximum value calculation unit 123 are provided in the image analysis module, and the brightness signal calculation unit 121 is configured to receive the digital image signal, The image brightness signal is calculated according to the formula Y=0.299×R+0.587×G+0.114×B, where Y is the image brightness signal, R, G, and B are the original gray data of the digital image signal, and the average value calculation unit 124 is connected to the brightness signal calculation unit 121 and is used to calculate the average value Yavg of the image brightness signal. The maximum value calculation unit 123 is connected to the brightness signal calculation unit 121 and is used to calculate the value of the image brightness signal. The maximum value Ymax.
Example Embodiment
[0069] Example 3
[0070] On the basis of Example 1, such as image 3 As shown, preferably, in this embodiment, a histogram statistics unit 121 is further provided in the image analysis module 12, and the connection relationship is changed to: the brightness signal calculation unit 121 and the histogram statistics unit 122 are sequentially connected, and the brightness signal calculation unit 121 Used to receive the digital image signal, calculate the image brightness signal according to the formula Y = 0.299 × R + 0.587 × G + 0.114 × B, where Y is the image brightness signal, R, G, B are the original gray scale data of the digital image signal, histogram The graph statistics unit 122 is used to perform histogram statistics on the image brightness signal Y. The histogram statistics unit 122 is also connected to the average value calculation unit 124 and the maximum value calculation unit 123, respectively, and the average value calculation unit 124 is used to perform statistics ba...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap