# display\_manager<a name="EN-US_TOPIC_0000001152026155"></a>

-   [Introduction](#section11660541593)
-   [Directory Structure](#section19472752217)
-   [Repositories Involved](#section63151229062)

## Introduction<a name="section11660541593"></a>

The Display power manager module of this repository provides the following capabilities:

1.  Turning on/off the display
2.  Adjusting the brightness of the display screen

**Figure  1**  Display power management subsystem architecture<a name="fig106301571239"></a>
![](figures/power-management-subsystem-architecture.png "display-power-manager-subsystem-architecture")

## Directory Structure<a name="section19472752217"></a>

```
base/powermgr/display_manager
├── figures                  	# Architecture figures
├── frameworks                  # FrameWork Layer
│   ├── napi                  	# NAPI code
│   └── native                  # Native code
├── interfaces                  # APIs
│   ├── innerkits               # Internal APIs
│   └── kits                    # External APIs
├── sa_profile                  # SA profile
├── service                    	# Services
│   ├── native                  # Native services
│   └── zidl                    # zidl APIs
├── test                        # Test code
└── utils                       # Utilities and common code
```

## Repositories Involved<a name="section63151229062"></a>

[Power management subsystem](https://gitee.com/openharmony/docs/blob/master/en/readme/power-management.md)

[powermgr_power_manager](https://gitee.com/openharmony/powermgr_power_manager)

**powermgr_display_manager**

[powermgr_battery_manager](https://gitee.com/openharmony/powermgr_battery_manager)

[powermgr_thermal_manager](https://gitee.com/openharmony/powermgr_thermal_manager)

[powermgr_battery_statistics](https://gitee.com/openharmony/powermgr_battery_statistics)

[powermgr_battery_lite](https://gitee.com/openharmony/powermgr_battery_lite)

[powermgr_powermgr_lite](https://gitee.com/openharmony/powermgr_powermgr_lite)

# 显示能效管理组件<a name="ZH-CN_TOPIC_0000001152026155"></a>

-   [简介](#section11660541593)
-   [目录](#section19472752217)
-   [相关仓](#section63151229062)

## 简介<a name="section11660541593"></a>

显示能效管理组件主要负责显示屏的亮/灭、亮度调节等功能，如下：

1.  显示屏的亮/灭。
2.  显示屏亮度调节。

**图 1**  显示能效管理组件架构图<a name="fig106301571239"></a>
![](figures/power-management-subsystem-architecture.png "显示能效管理组件架构图")

## 目录<a name="section19472752217"></a>

```
base/powermgr/display_manager
├── figures                  	# 架构图
├── frameworks                  # FrameWork层
│   ├── napi                  	# NAPI
│   └── native                  # Native层
├── interfaces                  # 接口层
│   ├── innerkits               # 内部 APIs
│   └── kits                    # 外部接口 APIs
├── sa_profile                  # SA 配置文件
├── service                    	# 服务层
│   ├── native                  # Native 层
│   └── zidl                    # zidl 接口层
├── test                        # 测试用例
└── utils                       # 工具和通用层
```

## 相关仓<a name="section63151229062"></a>

[电源管理子系统](https://gitee.com/openharmony/docs/blob/master/zh-cn/readme/%E7%94%B5%E6%BA%90%E7%AE%A1%E7%90%86%E5%AD%90%E7%B3%BB%E7%BB%9F.md)

[powermgr_power_manager](https://gitee.com/openharmony/powermgr_power_manager)

**powermgr_display_manager**

[powermgr_battery_manager](https://gitee.com/openharmony/powermgr_battery_manager)

[powermgr_thermal_manager](https://gitee.com/openharmony/powermgr_thermal_manager)

[powermgr_battery_statistics](https://gitee.com/openharmony/powermgr_battery_statistics)

[powermgr_battery_lite](https://gitee.com/openharmony/powermgr_battery_lite)

[powermgr_powermgr_lite](https://gitee.com/openharmony/powermgr_powermgr_lite)