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/ohos5.0/docs/zh-cn/device-dev/driver/
H A Ddriver-peripherals-lcd-des.md1 # LCD chapter
11 - 为LCD器件驱动开发提供了基础驱动框架，提升驱动开发效率。
56 开发者在进行LCD驱动编程过程中，除了要关注IC的型号，还要关注LCD外围电路设计、基带芯片的LCD接口单元、背光IC的控制等多个方面，同时包括软件的上层程序。这些都是影响开发者在调试LCD驱动的影…
62 LCD驱动模型属于驱动基础适配模块，第三方需要适配OpenHarmony系统时，需要进行LCD驱动适配。LCD驱动适配基于HDF驱动框架、Platform接口及OSAL接口开发，可以做到不区分OS（…
68 表1 LCD驱动适配所需接口
79 1. 添加LCD驱动相关的设备描述配置。
84 - LCD上下电
86 根据LCD硬件连接，使用Platform接口层提供的GPIO操作接口操作对应LCD管脚，例如复位管脚、IOVCC管脚，上电时序参考LCD供应商提供的SPEC。
90 根据LCD硬件接口，使用Platform接口层提供的I2C、SPI、MIPI等接口，下载LCD初始化序列，初始化参数序列可以参考LCD供应商提供的SPEC。
98 以Hi35xx系列芯片为例，根据开发步骤所述，介绍LCD驱动的详细适配过程。
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H A Ddriver-overview-foundation.md74 OpenHarmony当前支持的外设设备类型包括但不限于：Audio、Camera、Codec、Face_auth、Fingerprint_auth、LCD、Light、Motion、Pin_aut…
H A Ddriver-peripherals-touch-des.md58 …LCD驱动IC是相互分离的，这种情况下，Touchscreen驱动IC一般同时需要1.8V和3.3V两路供电。随着芯片的演进，业内已有将Touchscreen驱动IC和LCD驱动IC集成在一颗IC…
H A DReadme-CN.md48 - [LCD](driver-peripherals-lcd-des.md)
H A Ddriver-platform-mipidsi-develop.md7 …r Interface (MIPI) Alliance）制定的规范，旨在降低移动设备中显示控制器的成本。它以串行的方式发送像素数据或指令给外设（通常是LCD或者类似的显示设备），或从外设中读取状态…
/ohos5.0/docs/en/device-dev/driver/
H A Ddriver-peripherals-lcd-des.md1 # LCD chapter
7 The Liquid Crystal Display (LCD) driver performs operations such as powering on the LCD and initial…
27 - LCD panel driver layer: provides LCD-related APIs for sending the initialization sequence, poweri…
55 …LCD peripheral circuit design, LCD interface unit of the baseband chip, backlight IC control, and …
67 Table 1 APIs required for LCD driver adaptation
78 1. Add the device configuration related to the LCD driver.
83 - Powering on/off the LCD device
85 …LCD hardware connection, use the GPIO APIs provided by the platform to perform operations on the L…
89 …LCD hardware interfaces, use the I2C, SPI, and MIPI interfaces provided by the platform to downloa…
123 /* Configuration of the LCD driver */
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H A DReadme-EN.md48 - [LCD](driver-peripherals-lcd-des.md)
/ohos5.0/foundation/multimedia/media_library/frameworks/services/media_thumbnail/include/
H A Dthumbnail_const.h35 LCD, enumerator
79 { ThumbnailType::LCD, "LCD" },
187 case ThumbnailType::LCD: in GetThumbSuffix()
197 return ThumbnailType::LCD;
205 return ThumbnailType::LCD;
/ohos5.0/foundation/multimedia/media_library/frameworks/services/media_thumbnail/src/
H A Dthumbnail_generate_helper.cpp374 if (thumbType == ThumbnailType::LCD && !IThumbnailHelper::DoCreateLcd(opts, data, status)) { in GenerateLocalThumbnail()
379 if (thumbType != ThumbnailType::LCD) { in GenerateLocalThumbnail()
442 case ThumbnailType::LCD: in IsLocalThumbnailAvailable()
459 case ThumbnailType::LCD: in UpdateStreamReadThumbDbStatus()
484 if (thumbType == ThumbnailType::LCD && opts.table == PhotoColumn::PHOTOS_TABLE) { in UpdateThumbStatus()
492 thumbnailWait.CheckAndWait(opts.row, thumbType == ThumbnailType::LCD); in GetThumbnailPixelMap()
506 …DfxTimer dfxTimer(thumbType == ThumbnailType::LCD ? DfxType::CLOUD_LCD_OPEN : DfxType::CLOUD_DEFAU… in GetThumbnailPixelMap()
507 …INVALID_DFX, thumbType == ThumbnailType::LCD ? CLOUD_LCD_TIME_OUT : CLOUD_DEFAULT_TIME_OUT, false); in GetThumbnailPixelMap()
519 … thumbType == ThumbnailType::LCD ? DfxType::CLOUD_LCD_OPEN : DfxType::CLOUD_DEFAULT_OPEN, -errno); in GetThumbnailPixelMap()
530 thumbType == ThumbnailType::LCD ? THUMBNAIL_LCD_SUFFIX : THUMBNAIL_THUMB_SUFFIX); in GetThumbnailPixelMap()
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H A Dithumbnail_helper.cpp421 ret = thumbnailWait.InsertAndWait(data.id, ThumbnailType::LCD); in DoCreateLcd()
532 …t err = ThumbnailUtils::TrySaveFile(data, isSourceEx ? ThumbnailType::LCD_EX : ThumbnailType::LCD); in SaveLcdPixelMapSource()
757 if (ThumbnailUtils::GetLocalThumbSize(data, ThumbnailType::LCD, lcdSize)) { in UpdateThumbDbState()
965 if (thumbType == ThumbnailType::LCD && !IThumbnailHelper::DoCreateLcd(opts, data, status)) { in GenerateRotatedThumbnail()
970 if (thumbType != ThumbnailType::LCD && !IThumbnailHelper::DoRotateThumbnail(opts, data)) { in GenerateRotatedThumbnail()
1051 auto ret = thumbnailWait.CloudInsertAndWait(data.id, thumbType == ThumbnailType::LCD ? in DoRotateThumbnailEx()
1064 thumbnailWait.UpdateCloudLoadThumbnailMap(thumbType == ThumbnailType::LCD ? in DoRotateThumbnailEx()
1074 thumbnailWait.UpdateCloudLoadThumbnailMap(thumbType == ThumbnailType::LCD ? in DoRotateThumbnailEx()
1079 thumbnailWait.UpdateCloudLoadThumbnailMap(thumbType == ThumbnailType::LCD ? in DoRotateThumbnailEx()
H A Dthumbnail_aging_helper.cpp128 if (ThumbnailUtils::DeleteThumbFile(infos[i], ThumbnailType::LCD)) { in ClearLcdFromFileTable()
/ohos5.0/docs/zh-cn/device-dev/quick-start/
H A Dquickstart-appendix-hi3516.md20 …镜头M12，焦距4mm，光圈1.8<br/>-&nbsp;显示屏<br/>&nbsp;&nbsp;-&nbsp;LCD连接器（2.35寸）<br/>&nbsp;&nbsp;-&nbsp;LCD连接…
/ohos5.0/docs/zh-cn/device-dev/porting/
H A Dstandard-system-porting-guide.md161 ### LCD subsection
163 HDF为LCD设计了驱动模型。支持一块新的LCD，需要编写一个驱动，在驱动中生成模型的实例，并完成注册。
165 这些LCD的驱动被放置在`//drivers/hdf_core/framework/model/display/driver/panel`目录中。
214 更详细的驱动开发指导，请参考[LCD](../driver/driver-peripherals-lcd-des.md)。
H A Dporting-smallchip-driver-oom.md7 ## LCD驱动移植
9 移植LCD驱动的主要工作是编写一个驱动，在驱动中生成模型的实例，并完成注册。
11 这些LCD的驱动被放置在源码目录`//drivers/hdf_core/framework/model/display/driver/panel`中。
H A Dporting-smallchip-driver-overview.md4 驱动主要包含两部分，平台驱动和器件驱动。平台驱动主要包括通常在SOC内的GPIO、I2C、SPI等；器件驱动则主要包含通常在SOC外的器件，如 LCD、TP、WLAN等
/ohos5.0/docs/en/device-dev/quick-start/
H A Dquickstart-appendix-hi3516.md20 …al length, and f/1.8 aperture<br>- Display<br> - 2.35-inch LCD connector<br> - 5.5-inch LCD conn…
/ohos5.0/foundation/multimedia/media_library/frameworks/innerkitsimpl/test/unittest/medialibrary_thumbnail_service_test/src/
H A Dmedialibrary_thumbnail_service_test.cpp423 ThumbnailType type = ThumbnailType::LCD;
496 ThumbnailType type = ThumbnailType::LCD;
640 ThumbnailType type = ThumbnailType::LCD;
648 ThumbnailType type = ThumbnailType::LCD;
732 ThumbnailType type3 = ThumbnailType::LCD;
773 const ThumbnailType type3 = ThumbnailType::LCD;
790 ThumbnailType type = ThumbnailType::LCD;
827 ThumbnailType thumbType = ThumbnailType::LCD;
/ohos5.0/drivers/hdf_core/framework/
H A DREADME_zh.md146 基于Display驱动模型开发LCD器件驱动请参考[LCD驱动开发指南](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-de…
/ohos5.0/drivers/hdf_core/
H A DREADME_zh.md146 基于Display驱动模型开发LCD器件驱动请参考[LCD驱动开发指南](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-de…
/ohos5.0/base/hiviewdfx/hiview/plugins/performance/config/event/
H A DXperfPlugin45 "domain": "LCD",
/ohos5.0/docs/en/device-dev/porting/
H A Dporting-smallchip-driver-overview.md3 … drivers. The device drivers are typically outside of the SoC, such as the LCD, TP, and WLAN drive…
H A Dstandard-system-porting-guide.md161 ### LCD subsection
163 … Liquid Crystal Display (LCD) driver. The hardware driver framework (HDF) designs a driver model f…
165 The LCD drivers are stored in the **//drivers/hdf_core/framework/model/display/driver/panel** direc…
214 For details about driver development, see [LCD](../driver/driver-peripherals-lcd-des.md).
H A Dporting-smallchip-driver-oom.md5 ## LCD Driver Porting
7 To port an LCD driver, write the driver, create an instance of the corresponding model in the drive…
9 The LCD drivers are stored in **//drivers/hdf_core/framework/model/display/driver/panel**.
/ohos5.0/docs/zh-cn/application-dev/reference/apis-input-kit/
H A Djs-apis-keycode.md336 | KEYCODE_SWITCHVIDEOMODE | 2841 | 在可用视频之间循环输出（监视器/LCD/TV输出/等） |
/ohos5.0/docs/zh-cn/device-dev/subsystems/
H A Dsubsys-thermal_control.md52 | name="lcd" | LCD管控动作（控制屏幕亮度） | 无 | 无 | 无 | 无 |

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