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Font in 2x16 Character LCD |
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Jun 4, 2007 |
Most AR1688 IP phones are using 2x16 character LCD, because it is cheap and widely available. It usually uses 5x8 font. From 0x20 to 0x7f are standard ASCII characters.
I read the 3 different LCD datasheets in my computer and found none of it is compatible with ISO 8859 for the characters after 0x80. Then I wrote a program to display the actual font in those AR1688 and PA1688 IP phones in my hand. To my surprise, most of them are Japanese characters after 0x80. At first I was thinking why Chinese are so friendly with Japanese, or why Japan is so important to China. Then I realized it was because Japanese first built those 2x16 character LCD chips, we are still trying to be compatible with it today!
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