![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpKASzajAAmTxI-HbFY005.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
這款專為ELF 1開發板適配的4.3英寸電容觸摸屏,集成了TFT-LCD面板、驅動電路、背光電路以及I2C接口GT911電容觸摸,構成了一個透射型a-Si TFT-LCD(非晶硅薄膜晶體管液晶顯示器)模塊。面板尺寸為4.3英寸,分辨率為800×480。此外,該面板可支持顯示16.7M色,適用于便攜式設備顯示應用。
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpGAZEXcAAEE3SKfnFU92.jpeg?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
液晶屏體參數
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_12,text_QEVsZkJvYXJk,size_12,x_9,y_9,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpGAYVj0AAA0bi9Wo90858.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_12,text_QEVsZkJvYXJk,size_12,x_9,y_9,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
供電模式
![wKgaoWciJiSAcUZKAAF2ceYvMIM723.png](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJiSAcUZKAAF2ceYvMIM723.png)
工作環境
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_17,text_QEVsZkJvYXJk,size_17,x_13,y_13,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpGAaAnoAAAaehRzWPI766.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_17,text_QEVsZkJvYXJk,size_17,x_13,y_13,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
液晶模塊接口說明
液晶模塊由屏體和驅動背板組成。其主要接口信號傳輸的邏輯框圖如下圖所示:
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_18,text_QEVsZkJvYXJk,size_18,x_14,y_14,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpGAYbv4AACGZ9QsnhA374.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_18,text_QEVsZkJvYXJk,size_18,x_14,y_14,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
(1) 4.3英寸液晶模塊接口
在屏幕的驅動背板上,P1接口的引腳及原理圖如下圖所示:
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_4,text_QEVsZkJvYXJk,size_4,x_3,y_3,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpGAac09AAASGrJx6cE764.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_4,text_QEVsZkJvYXJk,size_4,x_3,y_3,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
由原理圖可知,P1座子兼容了四線電阻觸摸信號,電容觸摸信號,以及LCD信號,因為屏幕采用的是I2C接口的GT911芯片的電容觸摸,所以此處電阻觸摸信號為NC,即懸空。P1座子通過FPC線連接ELF 1開發板的P9處。
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_19,text_QEVsZkJvYXJk,size_19,x_15,y_15,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpGAV5yWAABxZbsmyTI639.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_19,text_QEVsZkJvYXJk,size_19,x_15,y_15,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
P1引腳定義如下:
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpGAJIoDAABABhk2V4A608.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpKASeAQAAAqwn-2xVw332.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpKACWFmAAAwjxv790s149.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpKAY9cLAAAejUjOk_4873.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
驅動背板的P3接口,引腳定義及原理圖如下圖所示,該接口為屏體與驅動背板的連接座子,該接口兼容了電阻觸摸但并未使用,電阻觸摸信號為懸空狀態。
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_9,text_QEVsZkJvYXJk,size_9,x_7,y_7,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpKAMiv7AAAeZ7lylso886.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_9,text_QEVsZkJvYXJk,size_9,x_7,y_7,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpKARA1PAAB-u2SEWiQ474.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_14,text_QEVsZkJvYXJk,size_14,x_11,y_11,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpKAYtKoAAAvIn_PDRs073.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpOAKbfUAAAkYbVdiEY428.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpKASTZTAAAk6la8I_E661.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_13,text_QEVsZkJvYXJk,size_13,x_10,y_10,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
(2)觸摸板接口
液晶模塊采用了電容觸摸,對應驅動板的P2接口,通過I2C掛載了一顆GT911的芯片,引腳定義及原理圖如下圖所示:
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_20,text_QEVsZkJvYXJk,size_20,x_16,y_16,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpOAd7KOAABjsLGuU30837.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_20,text_QEVsZkJvYXJk,size_20,x_16,y_16,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_12,text_QEVsZkJvYXJk,size_12,x_9,y_9,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpOAaCuyAAAeXkVtIBw192.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_12,text_QEVsZkJvYXJk,size_12,x_9,y_9,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
機械機構
(1)4.3英寸電容屏尺寸圖
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_20,text_QEVsZkJvYXJk,size_20,x_16,y_16,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpOADnfsAABumxeXauw029.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_20,text_QEVsZkJvYXJk,size_20,x_16,y_16,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
(2)4.3英寸屏體結構圖
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgaoWciJpOAAt0-AAB4dDDChiQ060.png?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_28,text_QEVsZkJvYXJk,size_28,x_22,y_22,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
(3)4.3英寸屏體背光驅動電流表
![watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_19,text_QEVsZkJvYXJk,size_19,x_15,y_15,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1](https://file1.elecfans.com/web1/M00/F3/FC/wKgZoWciJpOAcJDuAABI7hgkQe069.jpeg?x-bce-process=image/watermark,bucket_baidu-rmb-video-cover-1,image_YmpoL25ld3MvNjUzZjZkMjRlMDJiNjdjZWU1NzEzODg0MDNhYTQ0YzQucG5n,type_RlpMYW5UaW5nSGVpU01HQg==,w_19,text_QEVsZkJvYXJk,size_19,x_15,y_15,interval_2,color_FFFFFF,effect_softoutline,shc_000000,blr_2,align_1)
許多小伙伴對于其他品牌的屏幕與ELF 1開發板的適配問題感到困惑。為了判斷屏幕能否與開發板正常適配,我們需要遵循以下步驟:首先,確認板卡線序與屏幕線序是否一致。這是適配的基礎,線序不匹配將導致無法正常連接。其次,檢查板卡提供的背光驅動電流是否符合屏幕手冊中的要求。這是確保屏幕能正常工作的關鍵要素之一。如果以上兩點均得到滿足,那么就可以確認該屏幕與ELF 1開發板可以正常適配。
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