WO2017067100A1 - 一种智能终端双屏显示装置 - Google Patents

一种智能终端双屏显示装置 Download PDF

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WO2017067100A1
WO2017067100A1 PCT/CN2016/070765 CN2016070765W WO2017067100A1 WO 2017067100 A1 WO2017067100 A1 WO 2017067100A1 CN 2016070765 W CN2016070765 W CN 2016070765W WO 2017067100 A1 WO2017067100 A1 WO 2017067100A1
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interface
display
control chip
control
switch signal
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PCT/CN2016/070765
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French (fr)
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刘成华
任文远
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苏州嘉辰悦电子科技有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units

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  • the utility model relates to the field of expanding display screens, in particular to a dual-screen display device for intelligent terminals.
  • the technical problem mainly solved by the utility model is to provide a dual-screen display device of the intelligent terminal, which realizes the connection and independent control function of the extended display through the high-definition digital display interface and the embedded control chip.
  • a technical solution adopted by the present invention is to provide a dual-screen display device for an intelligent terminal, comprising: a CPU processor, an embedded control chip, a main screen control chip, and a sub-screen control chip, and the CPU processes
  • the device is provided with a high-definition digital display interface, an embedded display interface, a main screen control chip signal pin and a main screen control chip control port, and the embedded control chip is provided with a sub-screen control chip signal pin and a sub-screen control chip control port.
  • the embedded control chip is electrically connected to the CPU processor;
  • the main screen control chip is provided with an embedded display signal input interface and a first display control interface, the embedded display signal input interface is electrically connected to the embedded display interface, and the first display control interface and the main screen control
  • the chip signal pins are electrically connected, and the control ends of the first display control interface are respectively electrically connected to the main screen control chip control ports;
  • the secondary screen control chip is provided with a display signal input interface and a second display control interface, the display signal input interface is electrically connected to the high-definition digital display interface, and the second display control interface and the secondary screen control chip signal
  • the pins are electrically connected, and the control ends of the second display control interface are respectively connected to the sub-screen control chip control ports.
  • the main screen control chip signal pin includes a first power switch signal pin, a first backlight switch signal pin, and a first brightness adjustment signal pin.
  • the first display control interface includes a first power switch signal interface, a first backlight switch signal interface, and a first brightness adjustment signal interface.
  • the first power switch signal pin of the CPU processor is electrically connected to the first power switch signal interface of the main screen control chip, and the first backlight switch signal pin is The first backlight switch signal interface is electrically connected, and the first brightness adjustment signal pin is electrically connected to the first brightness adjustment signal interface.
  • the second display control interface includes a second power switch signal interface, a second backlight switch signal interface, and a second brightness adjustment signal interface.
  • the secondary screen control chip signal pin includes a second power switch signal pin, a second backlight switch signal pin, and a second brightness adjustment signal pin.
  • the second power switch signal pin of the embedded control chip is electrically connected to the second power switch signal interface of the secondary control chip, and the second backlight switch signal is The foot is electrically connected to the second backlight switch signal interface, and the second brightness adjustment signal pin is electrically connected to the second brightness adjustment signal interface.
  • the main screen control chip control port includes a port for "Win” + "P” key output.
  • the secondary screen control chip control port is a GPIO port or a PWM port.
  • the embedded display signal input interface and the display signal input interface are both eDP bus interfaces.
  • the utility model has the beneficial effects that the dual-screen display device of the intelligent terminal realizes the function of independently controlling the extended display through the high-definition digital display interface and the data connection between the embedded control chip and the extended display, and overcomes the traditional intelligent terminal in the external connection.
  • FIG. 1 is a schematic block diagram of a dual-screen display device for a smart terminal according to the present invention.
  • the dual-screen display device of the smart terminal of the present invention comprises: a CPU processor 1 , an EC (EMBEDDED CONTROLLER embedded control) chip 4 , a main screen control chip 2 and a secondary screen control chip 3 , and the CPU processor 1
  • the DP interface DisplayPort high-definition digital display interface
  • the eDP (embedded display port) interface the main screen control chip 2 signal pin and the main screen control chip 2 control port
  • the EC chip 4 is provided with a sub-screen control chip.
  • 3 signal pins and a sub-screen control chip 3 control port, the EC chip 4 is electrically connected to the CPU processor 1;
  • the main screen control chip 2 is provided with an embedded display signal input interface and a first display control interface, and the embedded display signal input interface is electrically connected to the eDP interface through an eDP bus (1a), the first display control interface Electrically connecting with the signal pin of the main screen control chip 2, and the control end of the first display control interface is electrically connected to the control port of the main screen control chip 2;
  • the secondary display control chip 3 is provided with a display signal input interface and a second display control interface, and the display signal input interface is electrically connected to the DP interface through an eDP bus (2a), the second display control interface and the The signal terminals of the secondary control chip 3 are electrically connected, and the control terminals of the second display control interface are respectively connected to the control ports of the secondary control chip 3.
  • the main screen control chip 2 signal pin includes a first power switch signal PCH_ENVDD (1b) pin, a first backlight switch signal PCH_ENBKL (1c) pin and a first brightness adjustment signal PCH_EDP_PWM (1d) pin.
  • the main screen control chip 2 signal interface includes a first power switch signal PCH_ENVDD (1b) interface, a first backlight switch signal PCH_ENBKL (1c) interface, and a first brightness adjustment signal PCH_EDP_PWM (1d) interface.
  • the first power switch signal PCH_ENVDD (1b), the first backlight switch signal PCH_ENBKL (1c), and the first brightness adjustment signal PCH_EDP_PWM (1d) of the main screen control chip 2 are respectively connected to the signal Pin of the CPU processor 1;
  • the first power switch signal PCH_ENVDD (1b) pin of the CPU processor 1 is electrically connected to the first power switch signal PCH_ENVDD (1b) of the main screen control chip 2, and the first backlight switch signal PCH_ENBKL (1c) pin
  • the interface is electrically connected to the first backlight switch signal PCH_ENBKL(1c), and the first brightness adjustment signal PCH_EDP_PWM(1d) pin is electrically connected to the first brightness adjustment signal PCH_EDP_PWM(1d).
  • the secondary screen control chip 3 signal interface includes a second power switch signal PCH_ENVDD (2b) interface, a second backlight switch signal PCH_ENBKL (2c) interface, and a second brightness adjustment signal PCH_EDP_PWM (2d) interface.
  • the sub-screen control chip 3 signal pin includes a second power switch signal PCH_ENVDD (2b) pin, a second backlight switch signal PCH_ENBKL (2c) pin, and a second brightness adjustment signal PCH_EDP_PWM (2d) pin.
  • the second power switch signal PCH_ENVDD (2b), the second backlight switch signal PCH_ENBKL (2c), and the second brightness adjustment signal PCH_EDP_PWM (2d) of the secondary control chip 3 are controlled by the GPIO or PWM signal corresponding to the EC chip 4.
  • the second power switch signal PCH_ENVDD (2b) pin of the EC chip 4 is electrically connected to the second power switch signal PCH_ENVDD (2b) of the secondary control chip 3, and the second backlight switch signal PCH_ENBKL (2c) a pin is electrically connected to the second backlight switch signal PCH_ENBKL (2c), the second brightness adjustment signal PCH_EDP_PWM (2d) pin and the second brightness adjustment
  • the signal PCH_EDP_PWM (2d) interface is electrically connected.
  • the main screen control chip 2 control port includes a port for "Win” + "P” key output, and the "Win” + “P” key is used by the Windows 8.1 system.
  • the power, backlight switch and brightness adjustment portion of the main screen control chip 2 are respectively implemented by an Intel GOP driver.
  • the power supply, the backlight switch, and the brightness adjustment portion of the sub-screen control chip 3 are controlled by the EC chip 4.
  • the control port of the sub-screen control chip 3 is a GPIO port or a PWM port, and the EC chip 4 pairs the second power switch signal PCH_ENVDD (2b) and the second backlight switch signal PCH_ENBKL of the sub-screen control chip 3 through a GPIO port or a PWM port. (2c) and the second brightness adjustment signal PCH_EDP_PWM (2d) are separately controlled and adjusted.
  • the present invention only needs to use the high-definition digital display interface and the embedded control chip in the terminal of the mainstream CPU respectively External expansion display operation can be performed by connecting the corresponding interface or pin of the extended display;

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Abstract

一种智能终端双屏显示装置（5），包括：CPU处理器（1）、嵌入式控制芯片（4）、主屏控制芯片（2）和副屏控制芯片（3），CPU处理器设置有高清数字显示接口、嵌入式显示接口、主屏控制芯片的信号引脚及其控制端口，嵌入式控制芯片设置有副屏控制芯片信号引脚及其控制端口；主屏控制芯片设有与嵌入式显示接口相连的嵌入式显示信号输入接口和第一显示控制接口；副屏控制芯片设有与高清数字显示接口相连的显示信号输入接口和第二显示控制接口；第二显示控制接口的控制端分别与副屏控制芯片控制端口对应连接。该装置克服了传统智能终端需要外接显示器时对数据线和接口的局限性要求，只需在使用主流CPU的终端内连接显示及其控制接口即可进行外接扩展显示器操作。

Description

一种智能终端双屏显示装置 技术领域
本实用新型涉及扩展显示屏领域，特别是涉及一种智能终端双屏显示装置。
背景技术
现有笔记本或平板外接显示器的接口大致有VGA接口、HDMI接口和Display Port(DP)接口，不同的显示器会有不同的接口需求，而在大家对移动性要求越来越超高的今天，外出办公地可能缺少对应接口的显示设备，再者现阶段超级本和平板对厚度及外观ID的限制，一般产品这几种接口也不会全部都具备，比如超级本因为轻薄，可能只会配备USB接口，但就不会有VGA接口或HDMI接口，遇到只有VGA接口的显示设备，就只能用转接线了；诸如此类，不论是产品本身自带有丰富的外接显示接口也好，或者用已有的USB接口形式的Dongle转也好，都有很多的限制，比如：
(1)要么对应的办公出差地点找不到对应接口的设备；
(2)要么是需要自己提前随身携带具有各种转接功能的转接线。
以上关于显示器外接扩展的限制对于出差办公，需要两个显示器独立操作的人来说，使用目前的数据线和显示接口对应连接会比较麻烦，一旦条件有限，缺少必要数据线或接口等硬件，将会耽误许多事情，降低办事效率。
发明内容
本实用新型主要解决的技术问题是提供一种智能终端双屏显示装置，通过高清数字显示接口和嵌入式控制芯片实现对扩展显示器的连接和独立控制功能。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供一种智能终端双屏显示装置，包括：CPU处理器、嵌入式控制芯片、主屏控制芯片和副屏控制芯片，所述CPU处理器设置有高清数字显示接口、嵌入式显示接口、主屏控制芯片信号引脚和主屏控制芯片控制端口，所述嵌入式控制芯片设置有副屏控制芯片信号引脚和副屏控制芯片控制端口，所述嵌入式控制芯片与所述CPU处理器电连接；
所述主屏控制芯片设置有嵌入式显示信号输入接口和第一显示控制接口，所述嵌入式显示信号输入接口与所述嵌入式显示接口电连接，所述第一显示控制接口与所述主屏控制芯片信号引脚电连接，所述第一显示控制接口的控制端分别与主屏控制芯片控制端口电连接；
所述副屏控制芯片设置有显示信号输入接口和第二显示控制接口，所述显示信号输入接口与所述高清数字显示接口电连接，所述第二显示控制接口与所述副屏控制芯片信号引脚电连接，所述第二显示控制接口的控制端分别与所述副屏控制芯片控制端口相互对应连接。
在本实用新型一个较佳实施例中，所述主屏控制芯片信号引脚包括第一电源开关信号引脚、第一背光开关信号引脚和第一亮度调节信号引脚。
在本实用新型一个较佳实施例中，所述第一显示控制接口包括第一电源开关信号接口、第一背光开关信号接口和第一亮度调节信号接口。
在本实用新型一个较佳实施例中，所述CPU处理器的第一电源开关信号引脚与所述主屏控制芯片的第一电源开关信号接口电连接，所述第一背光开关信号引脚与所述第一背光开关信号接口电连接，所述第一亮度调节信号引脚与所述第一亮度调节信号接口电连接。
在本实用新型一个较佳实施例中，所述第二显示控制接口包括第二电源开关信号接口、第二背光开关信号接口和第二亮度调节信号接口。
在本实用新型一个较佳实施例中，所述副屏控制芯片信号引脚包括第二电源开关信号引脚、第二背光开关信号引脚和第二亮度调节信号引脚。
在本实用新型一个较佳实施例中，所述嵌入式控制芯片的第二电源开关信号引脚与所述副屏控制芯片的第二电源开关信号接口电连接，所述第二背光开关信号引脚与所述第二背光开关信号接口电连接，所述第二亮度调节信号引脚与所述第二亮度调节信号接口电连接。
在本实用新型一个较佳实施例中，所述主屏控制芯片控制端口包括“Win”+“P”键输出的端口。
在本实用新型一个较佳实施例中，所述副屏控制芯片控制端口为GPIO端口或PWM端口。
在本实用新型一个较佳实施例中，所述嵌入式显示信号输入接口和显示信号输入接口均为eDP总线接口。
本实用新型的有益效果是：本实用新型一种智能终端双屏显示装置通过高清数字显示接口和嵌入式控制芯片与扩展显示器的数据连接实现独立控制扩展显示的功能，克服了传统智能终端在外接显示器时对数据线和接口的局限性要求，本实用新型只需在使用主流CPU的终端内的高清数字显示接口和嵌入式控制芯片分别与扩展显示的相应接口或者引脚进行连接即可进行外接扩展显示器操作。
附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本 实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本实用新型一种智能终端双屏显示装置的原理框图。
附图中各部件的标记如下：1、CPU处理器，2、主屏控制芯片，3、副屏控制芯片，4、嵌入式控制芯片，5、智能终端双屏显示装置。
具体实施方式
下面将对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1，本实用新型的智能终端双屏显示装置包括：CPU处理器1、EC(EMBEDDED CONTROLLER嵌入式控制)芯片4、主屏控制芯片2和副屏控制芯片3，所述CPU处理器1设置有DP接口(DisplayPort高清数字显示接口)、eDP(embedded Display Port嵌入式显示接口)接口、主屏控制芯片2信号引脚和主屏控制芯片2控制端口，所述EC芯片4设置有副屏控制芯片3信号引脚和副屏控制芯片3控制端口，所述EC芯片4与所述CPU处理器1电连接；
所述主屏控制芯片2设置有嵌入式显示信号输入接口和第一显示控制接口，所述嵌入式显示信号输入接口通过eDP总线(1a)与所述eDP接口电连接，所述第一显示控制接口与所述主屏控制芯片2信号引脚电连接，所述第一显示控制接口的控制端分别与主屏控制芯片2控制端口电连接；
所述副屏控制芯片3设置有显示信号输入接口和第二显示控制接口，所述显示信号输入接口通过eDP总线(2a)与所述DP接口电连接，所述第二显示控制接口与所述副屏控制芯片3信号引脚电连接，所述第二显示控制接口的控制端分别与所述副屏控制芯片3控制端口相互对应连接。
所述主屏控制芯片2信号引脚包括第一电源开关信号PCH_ENVDD(1b)引脚、第一背光开关信号PCH_ENBKL(1c)引脚和第一亮度调节信号PCH_EDP_PWM(1d)引脚。
所述主屏控制芯片2信号接口包括第一电源开关信号PCH_ENVDD(1b)接口、第一背光开关信号PCH_ENBKL(1c)接口和第一亮度调节信号PCH_EDP_PWM(1d)接口。
所述主屏控制芯片2的第一电源开关信号PCH_ENVDD(1b)、第一背光开关信号PCH_ENBKL(1c)、第一亮度调节信号PCH_EDP_PWM(1d)分别连接CPU处理器1对应的信号Pin脚；所述CPU处理器1的第一电源开关信号PCH_ENVDD(1b)引脚与所述主屏控制芯片2的第一电源开关信号PCH_ENVDD(1b)接口电连接，所述第一背光开关信号PCH_ENBKL(1c)引脚与所述第一背光开关信号PCH_ENBKL(1c)接口电连接，所述第一亮度调节信号PCH_EDP_PWM(1d)引脚与所述第一亮度调节信号PCH_EDP_PWM(1d)接口电连接。
所述副屏控制芯片3信号接口包括第二电源开关信号PCH_ENVDD(2b)接口、第二背光开关信号PCH_ENBKL(2c)接口和第二亮度调节信号PCH_EDP_PWM(2d)接口。
所述副屏控制芯片3信号引脚包括第二电源开关信号PCH_ENVDD(2b)引脚、第二背光开关信号PCH_ENBKL(2c)引脚和第二亮度调节信号PCH_EDP_PWM(2d)引脚。
所述副屏控制芯片3的第二电源开关信号PCH_ENVDD(2b)、第二背光开关信号PCH_ENBKL(2c)、第二亮度调节信号PCH_EDP_PWM(2d)由EC芯片4相对应的GPIO或PWM信号来控制；所述EC芯片4的第二电源开关信号PCH_ENVDD(2b)引脚与所述副屏控制芯片3的第二电源开关信号PCH_ENVDD(2b)接口电连接，所述第二背光开关信号PCH_ENBKL(2c)引脚与所述第二背光开关信号PCH_ENBKL(2c)接口电连接，所述第二亮度调节信号PCH_EDP_PWM(2d)引脚与所述第二亮度调节 信号PCH_EDP_PWM(2d)接口电连接。
所述主屏控制芯片2控制端口包括“Win”+“P”键输出的端口，所述“Win”+“P”键的使用环境为Windows 8.1系统。所述主屏控制芯片2的电源、背光开关和亮度调节部分分别由Intel GOP的驱动程序来实现。
所述副屏控制芯片3的电源、背光开关和亮度调节部分由EC芯片4来控制实现。
所述副屏控制芯片3控制端口为GPIO端口或PWM端口，EC芯片4通过GPIO端口或PWM端口对所述副屏控制芯片3的第二电源开关信号PCH_ENVDD(2b)、第二背光开关信号PCH_ENBKL(2c)和第二亮度调节信号PCH_EDP_PWM(2d)分别进行控制和调节。
本实用新型一种智能终端双屏显示装置的有益效果是：
一、通过高清数字显示接口和嵌入式控制芯片与扩展显示器的数据连接实现独立控制扩展显示的功能，本实用新型只需在使用主流CPU的终端内的高清数字显示接口和嵌入式控制芯片分别与扩展显示的相应接口或者引脚进行连接即可进行外接扩展显示器操作；
二、与传统智能终端外接显示器的方式相比，具有不需要数据线和接口种类的限制，只需普通的数据线就可以进行外设扩展显示器的连接，而且还可以对扩展显示器进行独立控制，操作方便，成本低廉，适用面广，易于推广使用。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

  1. 一种智能终端双屏显示装置，其特征在于，包括：CPU处理器、嵌入式控制芯片、主屏控制芯片和副屏控制芯片，所述CPU处理器设置有高清数字显示接口、嵌入式显示接口、主屏控制芯片信号引脚和主屏控制芯片控制端口，所述嵌入式控制芯片设置有副屏控制芯片信号引脚和副屏控制芯片控制端口，所述嵌入式控制芯片与所述CPU处理器电连接；
    所述主屏控制芯片设置有嵌入式显示信号输入接口和第一显示控制接口，所述嵌入式显示信号输入接口与所述嵌入式显示接口电连接，所述第一显示控制接口与所述主屏控制芯片信号引脚电连接，所述第一显示控制接口的控制端分别与主屏控制芯片控制端口电连接；
    所述副屏控制芯片设置有显示信号输入接口和第二显示控制接口，所述显示信号输入接口与所述高清数字显示接口电连接，所述第二显示控制接口与所述副屏控制芯片信号引脚电连接，所述第二显示控制接口的控制端分别与所述副屏控制芯片控制端口相互对应连接。
  2. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述主屏控制芯片信号引脚包括第一电源开关信号引脚、第一背光开关信号引脚和第一亮度调节信号引脚。
  3. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述第一显示控制接口包括第一电源开关信号接口、第一背光开关信号接口和第一亮度调节信号接口。
  4. 根据权利要求1至3任一所述的一种智能终端双屏显示装置，其特征在于，所述CPU处理器的第一电源开关信号引脚与所述主屏控制芯片的第一电源开关信号接口电连接，所述第一背光开关信号引脚与所述第一背光开关信号接口电 连接，所述第一亮度调节信号引脚与所述第一亮度调节信号接口电连接。
  5. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述第二显示控制接口包括第二电源开关信号接口、第二背光开关信号接口和第二亮度调节信号接口。
  6. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述副屏控制芯片信号引脚包括第二电源开关信号引脚、第二背光开关信号引脚和第二亮度调节信号引脚。
  7. 根据权利要求5或6所述的一种智能终端双屏显示装置，其特征在于，所述嵌入式控制芯片的第二电源开关信号引脚与所述副屏控制芯片的第二电源开关信号接口电连接，所述第二背光开关信号引脚与所述第二背光开关信号接口电连接，所述第二亮度调节信号引脚与所述第二亮度调节信号接口电连接。
  8. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述主屏控制芯片控制端口包括“Win”+“P”键输出的端口。
  9. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述副屏控制芯片控制端口为GPIO端口或PWM端口。
  10. 根据权利要求1所述一种智能终端双屏显示装置，其特征在于，所述嵌入式显示信号输入接口和显示信号输入接口均为eDP总线接口。
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