ST7789V2 datasheet(148/319 Pages) SITRONIX

Part #	ST7789V2

Description	Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM)

PDF	319 Pages

Scroll/Zoom	100%

Manufacturer	SITRONIX [Sitronix Technology Co., Ltd.]

Direct Link	http://www.sitronix.com.tw

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148 / 319 page

ST7789V2

Version 1.0

Page 148 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.

8.21 Display Dimming

8.21.1 General Description

A dimming function (how fast to change the brightness from old to new level and what are brightness

levels during the change) is used when changing from one brightness level to another. This dimming function

curve is the same in increment and decrement. The basic idea is described below.

Dimming function can be enable and disable. See “Write CTRL Display (53h)” (bit DD) for more

information.

8.21.2 Dimming Requirement

Dimming function in the display module should be implemented so that 400-600ms is used for the

transition between the original brightness value and the target brightness value. The transferring time steps

between these two brightness values are equal making the transition linear.

The dimming function is working similarly in both upward and downward directions.

An upward example is illustrate below

ST7789V2 Datasheet(PDF) 148 Page - Sitronix Technology Co., Ltd.