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ST7789V2 Datasheet(PDF) 147 Page - Sitronix Technology Co., Ltd. |
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ST7789V2 Datasheet(HTML) 147 Page - Sitronix Technology Co., Ltd. |
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147 / 319 page  ST7789V2 Version 1.0 Page 147 of 319 2016/11 Sitronix Confidential The information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 8.20 Gray voltage generator for digital gamma correction ST7789V2 digital gamma function can implement the RGB gamma correction independently. ST7789V2 utilizes look-up table of digital gamma to change ram data, and then display the changed data from source driver. The following diagram shows the data flow of digital gamma. Figure 37 Block diagram of digital gamma There are 2 registers and each register has 64 bytes to set R, G, B gamma independently. When bit DGMEN be set to 1, R and B gamma will be mapped via look-up table of digital gamma to gray level voltage. |
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