WO2016115818A1

WO2016115818A1 - Integrated optical-to-electrical touch screen and apparatus, electronic device, and touch recognition method and system

Info

Publication number: WO2016115818A1
Application number: PCT/CN2015/081844
Authority: WO
Inventors: 伍学斌; 张建华
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-23
Filing date: 2015-06-18
Publication date: 2016-07-28
Also published as: CN105867701A

Abstract

An integrated optical-to-electrical touch screen and apparatus, an electronic device, and a touch recognition method and system. The integrated optical-to-electrical touch screen comprises: a display part composed of a plurality of display elements (10); and a plurality of photosensitive elements (20) integrated in the display part. The integrated optical-to-electrical touch apparatus comprises the integrated optical-to-electrical touch screen, a display drive system and an optical-to-electrical conversion control system. The touch recognition method comprises: performing real-time detection to obtain photocurrent information of each photosensitive unit on an integrated optical-to-electrical touch screen; and determining, according to the photocurrent information of each photosensitive unit, whether the photosensitive unit is touched, the integrated optical-to-electrical touch screen being divided into a plurality of touch recognition areas, and one or more photosensitive elements (20) in each touch recognition area forming one photosensitive unit.

Description

集成光电触摸屏、装置和电子设备及触摸识别方法、***Integrated photoelectric touch screen, device and electronic device, and touch recognition method and system

技术领域Technical field

本文涉及电子技术，尤其涉及具有显示和触摸功能的屏幕、相应的装置和电子设备，及触摸识别方法、***。This article relates to electronic technology, and more particularly to screens with display and touch functions, corresponding devices and electronic devices, and touch recognition methods and systems.

背景技术Background technique

随着技术的发展，OLED屏(或者是LED屏)在终端显示上，尤其是通讯终端，越来越被广泛的使用中。同时，触摸技术也被广泛使用在多种有显示器的终端设备中，如：手机、ATM机、多种信息查询机等。但目前的显示屏都是采用的显示器加上触摸屏的分离方案，其显示器和触摸屏分别是两种产品。在终端中，采用粘贴或机械安装等方式结合在一起。这种对生产组装的要求非常高，严重影响产能并导致生产整机的良品率不高。另外，由于显示器和触摸屏是两种产品，其厚度都会超过一个显示器的厚度，严重制约了手机等通讯终端变薄的要求。With the development of technology, OLED screens (or LED screens) are increasingly used in terminal displays, especially communication terminals. At the same time, touch technology is also widely used in a variety of terminal devices with displays, such as: mobile phones, ATM machines, a variety of information query machines. However, the current display screens are separated by a display plus a touch screen, and the display and the touch screen are respectively two products. In the terminal, they are combined by means of pasting or mechanical mounting. This requirement for production and assembly is very high, which seriously affects the production capacity and leads to a low yield of the whole machine. In addition, since the display and the touch screen are two products, the thickness thereof exceeds the thickness of one display, which seriously restricts the requirements for thinning of communication terminals such as mobile phones.

目前终端上使用的触摸技术主要分为四种：Currently, the touch technologies used on terminals are mainly divided into four types:

1、电阻式触摸屏1, resistive touch screen

这种触摸屏利用手指的压力感应进行控制，其特点是：不怕灰尘和水汽，可以使用任何物体进行触摸。缺点是：电阻触摸屏的外层薄膜容易被划伤导致触摸屏不可用，多层结构会导致很大的光损失，对于手持设备通常需要加大背光源来弥补透光性不好的问题，但这样也会增加电池的消耗。而且，由于是压力感应的，触控的灵敏和响应都不是很高，且无法完成非接触式和多点同时的控制。This touch screen is controlled by the pressure sensing of the finger, and is characterized in that it is not afraid of dust and moisture, and can be touched using any object. The disadvantage is that the outer film of the resistive touch screen is easily scratched and the touch screen is not available, and the multilayer structure causes a large loss of light. For handheld devices, it is often necessary to increase the backlight to compensate for the problem of poor light transmission, but It also increases battery consumption. Moreover, because of the pressure sensing, the sensitivity and response of the touch are not very high, and the non-contact and multi-point simultaneous control cannot be completed.

2、电容式触摸屏2, capacitive touch screen

电容式触摸屏的原理是当用户触摸电容屏时，由于人体电场，用户手指和工作面形成一个耦合电容，因为工作面上接有高频信号，于是手指吸收走一个很小的电流，这个电流分别从屏的四个角上的电极中流出，且理论上流经四个电极的电流与手指头到四角的距离成比例，控制器通过对四个电流比例的精密计算，得出位置信息。相对于电阻屏，电容屏有更高的灵敏度，且不会对屏造成损伤。而且可以实现多点触控检测。其缺点主要是，抗干扰的能力比较差，水汽或水珠，温度等等都会对灵敏度产生巨大的影响。The principle of the capacitive touch screen is that when the user touches the capacitive screen, due to the human body electric field, the user's finger and the working surface form a coupling capacitor. Because the high-frequency signal is connected to the working surface, the finger absorbs a small current, and the current is respectively Flowing out of the electrodes at the four corners of the screen, and theoretically the current flowing through the four electrodes is proportional to the distance from the finger to the four corners, and the controller passes four current ratios The precise calculation of the example gives the position information. Compared to the resistive screen, the capacitive screen has higher sensitivity and does not damage the screen. And multi-touch detection can be achieved. The main disadvantage is that the anti-interference ability is relatively poor, water vapor or water droplets, temperature, etc. will have a huge impact on the sensitivity.

3、红外或光学触摸屏3, infrared or optical touch screen

目前红外触摸屏或光学触摸屏的原理差不多，区别在与使用的光源是红外还是可见光。其实现方式分为两种。At present, the principle of an infrared touch screen or an optical touch screen is similar, and the difference between the light source used is infrared or visible light. There are two ways to achieve it.

图1A所示为第一种方式，该方式为：在屏幕101的左上角设置一个光源103，光源投射光覆盖整个屏幕。屏幕的右上脚设置感光元件105接收光线。当有手指107靠近屏幕时，发光源103的部分光线经过手指107的反射进入到感光元件105，软件***计算图中的α和β两个夹角，可以确定手指107的坐标位置，确定触摸发生。FIG. 1A shows a first mode in which a light source 103 is disposed in the upper left corner of the screen 101, and the light source projects light to cover the entire screen. The upper right foot of the screen sets the light receiving element 105 to receive light. When the finger 107 is close to the screen, a part of the light of the light source 103 passes through the reflection of the finger 107 and enters the photosensitive element 105. The software system calculates the angles of α and β in the figure, and can determine the coordinate position of the finger 107 to determine that the touch occurs. .

图1B所示为第二种方式：在屏幕201的两个直角边，分别放置多个光源203，在对应的另外两个直角边放置感光器件205。当有手指207靠近时，部分光束被挡住，导致有部分感光器件205无法接受到光线，从而可以确定手207指的位置，确定触摸事件发生。FIG. 1B shows a second mode: a plurality of light sources 203 are respectively placed on the two right-angle sides of the screen 201, and the photosensitive device 205 is placed on the corresponding two other right-angle sides. When the finger 207 is approached, part of the light beam is blocked, causing some of the photosensitive devices 205 to be unable to receive light, so that the position of the hand 207 can be determined to determine the occurrence of a touch event.

其缺点是：由于需要有光源和感光元件，要增加一个外框，对大屏手机类产品的窄边框很难实现，而且厚度也会增加。而且由于光源发射管的排列和个数问题，无法做到高分辨率。同时也不能支持多点触摸。外界的强光等也会造成触摸的误动作。The disadvantage is that due to the need for a light source and a photosensitive element, it is difficult to achieve a narrow frame for a large-screen mobile phone product, and the thickness is also increased. Moreover, due to the arrangement and number of light source tubes, high resolution cannot be achieved. At the same time, it cannot support multi-touch. The glare of the outside world can also cause a malfunction of the touch.

4、表面声波触摸屏4, surface acoustic wave touch screen

表面声波是一种沿介质表面传播的机械波。该种触摸屏由触摸屏、声波发生器、反射器和声波接收器组成，其中声波发生器能发送一种高频声波跨越屏幕表面，当手指触及屏幕时，触点上的声波即被阻止，由此确定坐标位置。表面声波触摸屏不受温度、湿度等环境因素影响，分辨率极高，有极好的防刮性，寿命长。其缺点是：由于该技术无法加以封装，容易受到表面脏污及水分的破坏，其同时也难以避免受到不必要的干扰，如外部声音的干扰。Surface acoustic waves are mechanical waves that propagate along the surface of a medium. The touch screen is composed of a touch screen, a sound wave generator, a reflector and a sound wave receiver, wherein the sound wave generator can send a high frequency sound wave across the surface of the screen, and when the finger touches the screen, the sound wave on the contact is blocked, thereby Determine the coordinate position. The surface acoustic wave touch screen is not affected by environmental factors such as temperature and humidity, and has extremely high resolution, excellent scratch resistance and long life. The disadvantage is that since the technology cannot be packaged, it is easily damaged by surface contamination and moisture, and it is also difficult to avoid unnecessary interference, such as interference from external sound.

上面的几种技术中，除了电容触摸屏和红外触摸屏可以做到近距离的非接触控制外，其他几种都无法做到非接触控制。但电容触摸屏和红外触摸屏的非接触控制的距离都需要很近，无法实现远距离的控制。Among the above several technologies, except for the capacitive touch screen and the infrared touch screen, which can achieve close-range non-contact control, other types cannot be controlled by non-contact. But capacitive touch screen and infrared touch screen The distance of the non-contact control needs to be very close, and remote control cannot be achieved.

发明内容Summary of the invention

本发明实施例提供了一种集成光电触摸屏，包括：Embodiments of the present invention provide an integrated photoelectric touch screen, including:

多个显示元件构成的显示器部分；以及a display portion composed of a plurality of display elements;

集成在所述显示器部分中的多个光敏元件。A plurality of light sensitive elements integrated in the display portion.

可选地，所述多个光敏元件中的每一光敏元件的周边均为显示元件；所述每一光敏元件的全部侧面均设有遮光层，顶部开窗。Optionally, a periphery of each of the plurality of photosensitive elements is a display element; a light shielding layer is disposed on all sides of the photosensitive element, and a top window is opened.

可选地，所述多个光敏元件分为多组，每组包括相邻设置的N个光敏元件，每组N个光敏元件的周边为显示元件，N为大于等于2的正整数；所述每组N个光敏元件与显示元件相邻的部分侧面设有遮光层，顶部开窗。Optionally, the plurality of photosensitive elements are divided into a plurality of groups, each group includes N photosensitive elements disposed adjacently, the periphery of each of the N photosensitive elements is a display element, and N is a positive integer greater than or equal to 2; Each side of the group of N photosensitive elements adjacent to the display element is provided with a light shielding layer and a top window.

可选地，所述多个光敏元件在所述集成光电触摸屏上均匀分布。Optionally, the plurality of photosensitive elements are evenly distributed over the integrated optoelectronic touch screen.

可选地，所述多组光敏元件在所述集成光电触摸屏上均匀分布。Optionally, the plurality of sets of light sensitive elements are evenly distributed over the integrated optoelectronic touch screen.

可选地，所述显示元件和光敏元件使用同一基底制成。Optionally, the display element and the photosensitive element are made using the same substrate.

可选地，所述显示元件为发光二极管；所述光敏元件为光敏电阻、光电二极管、光电三极管和光电耦合器中的一种。Optionally, the display element is a light emitting diode; the photosensitive element is one of a photoresistor, a photodiode, a phototransistor, and a photocoupler.

本发明实施例还提供了一种集成光电触摸装置，包括：The embodiment of the invention further provides an integrated photoelectric touch device, comprising:

如上所述的任一集成光电触摸屏；Any of the integrated photoelectric touch screens as described above;

显示驱动***，设置为驱动所述显示器部分的多个显示元件；以及a display drive system configured to drive a plurality of display elements of the display portion;

光电转换控制***，设置为为所述集成光电触摸屏上的所有光敏元件供电，实时采集所述所有光敏元件的光电流并进行处理，得到每个光敏元件的光电流信息。The photoelectric conversion control system is configured to supply power to all the photosensitive elements on the integrated photoelectric touch screen, and collect and process the photocurrents of all the photosensitive elements in real time to obtain photocurrent information of each photosensitive element.

可选地，所述光电转换控制***包括电源子***、信号采集子***、信号放大子***和信号处理及传输子***，其中：Optionally, the photoelectric conversion control system comprises a power subsystem, a signal acquisition subsystem, a signal amplification subsystem, and a signal processing and transmission subsystem, wherein:

所述电源子***，设置为给所述所有光敏元件提供工作电压，及为所述光电转换控制***中的其他子***供电； The power subsystem is configured to provide an operating voltage to all of the photosensitive elements and to power other subsystems in the photoelectric conversion control system;

所述信号采集子***，设置为实时采集每个光敏元件的光电流，输出多个电流或电压模拟信号；The signal acquisition subsystem is configured to collect the photocurrent of each photosensitive element in real time and output a plurality of current or voltage analog signals;

所述信号放大子***，设置为将所述信号采集子***输出的多个电流或电压模拟信号放大；以及The signal amplification subsystem is configured to amplify a plurality of current or voltage analog signals output by the signal acquisition subsystem;

所述信号处理及传输子***，设置为将放大后的所述多个电流或电压模拟信号转换成多个数字信号，作为所述每个光敏元件的光电流信息。The signal processing and transmission subsystem is configured to convert the amplified plurality of current or voltage analog signals into a plurality of digital signals as photocurrent information of each of the photosensitive elements.

上述集成光电触摸屏和装置，将光敏元件集成在显示器中来实现触摸识别，减少了显示屏的整体厚度，无需对显示器和触摸屏进行组装，功耗小。The above integrated photoelectric touch screen and device integrates the photosensitive element into the display to realize touch recognition, which reduces the overall thickness of the display screen, eliminates the need to assemble the display and the touch screen, and consumes less power.

本发明实施例还提供了一种基于集成光电触摸屏的触摸识别方法，所述集成光电触摸屏采用如上所述的任一集成光电触摸屏，所述方法包括：An embodiment of the present invention further provides a touch recognition method based on an integrated photoelectric touch screen, wherein the integrated photoelectric touch screen adopts any integrated photoelectric touch screen as described above, and the method includes:

实时检测得到集成光电触摸屏上每个光敏单元的光电流信息；Real-time detection of photocurrent information of each photosensitive unit on the integrated photoelectric touch screen;

根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；Determining, according to the photocurrent information of each photosensitive unit, whether each of the photosensitive cells is touched;

其中，所述集成光电触摸屏划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit.

可选地，根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：Optionally, determining, according to the photocurrent information of each photosensitive unit, whether each of the photosensitive cells is touched comprises:

周期性进行所述判定，对一个光敏单元的一次判定中，如满足设定的被触摸条件，则判定所述光敏单元被触摸；所述被触摸条件包括以下条件中的一种或多种：The determination is performed periodically, and in one determination of one photosensitive cell, if the set touched condition is satisfied, it is determined that the photosensitive cell is touched; the touched condition includes one or more of the following conditions:

条件一：所述光敏单元的光电流值与环境光电流值的差值大于设定的第一阈值；其中，所述环境光电流值根据设定区域中光敏单元的光电流值计算得到；Condition 1: the difference between the photocurrent value of the photosensitive unit and the ambient photocurrent value is greater than a set first threshold; wherein the ambient photocurrent value is calculated according to the photocurrent value of the photosensitive unit in the set region;

条件二：所述光敏单元的光电流值和预期值的差值小于设定的第二阈值；其中，所述预期值根据所述光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定；Condition 2: a difference between a photocurrent value of the photosensitive unit and an expected value is less than a set second threshold; wherein the expected value is according to light intensity information of the display unit around the photosensitive unit and a specified touch The light reflectance of the object is determined;

条件三：所述光敏单元当前的光电流值与上次判定时的光电流值的差值大于设定的第三阈值。Condition 3: The difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the last determination is greater than a set third threshold.

可选地，所述设定区域为所述集成光电触摸屏的整个区域，或部分区域。Optionally, the setting area is an entire area or a partial area of the integrated photoelectric touch screen.

可选地，所述指定触摸物包括手指和书写笔中的一种或多种。Optionally, the specified touch object comprises one or more of a finger and a stylus.

可选地，所述根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸之后，所述方法还包括：Optionally, after determining, according to the photocurrent information of each photosensitive unit, whether each of the photosensitive cells is touched, the method further includes:

根据判定为被触摸的光敏单元的位置信息确定被触摸区域；Determining the touched area according to position information of the photosensitive unit determined to be touched;

如所述被触摸区域和预期触摸区域的形状和/或大小相匹配，则判定发生触摸操作，如果不匹配，则判定未发生触摸操作。If the shape and/or size of the touched area and the expected touch area match, it is determined that a touch operation occurs, and if not, it is determined that a touch operation has not occurred.

可选地，所述方法还包括：配置触摸模式为近距离触摸模式或远距离触摸模式，其中：Optionally, the method further includes configuring the touch mode to a proximity touch mode or a remote touch mode, where:

在近距离触摸模式下，所述被触摸条件包括所述条件一、条件二和条件三中的一种或多种，所述预期触摸区域至少包括手指触摸时的预期触摸区域；In the near-distance touch mode, the touched condition includes one or more of the condition one, the second condition, and the third condition, and the expected touch area includes at least an expected touch area when the finger touches;

在远距离触摸模式下，所述被触摸条件包括所述条件一和条件三中的一种或多种，所述预期触摸区域至少包括光束触摸时的预期触摸区域。In the remote touch mode, the touched condition includes one or more of the condition one and the third condition, the expected touch area including at least an expected touch area when the light beam is touched.

本发明实施例还提供一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现上述方法。The embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.

本发明实施例还提供了一种基于集成光电触摸屏的触摸识别***，所述集成光电触摸屏采用如上所述的任一集成光电触摸屏，所述***包括：The embodiment of the invention further provides a touch recognition system based on an integrated photoelectric touch screen, wherein the integrated photoelectric touch screen adopts any integrated photoelectric touch screen as described above, and the system comprises:

信息接收模块，设置为接收实时检测得到的集成光电触摸屏上每个光敏单元的光电流信息；以及An information receiving module configured to receive photocurrent information of each photosensitive unit on the integrated photoelectric touch screen obtained in real time;

第一判定模块，设置为根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；a first determining module, configured to determine, according to the photocurrent information of each of the photosensitive cells, whether each of the photosensitive cells is touched;

其中，所述集成光电触摸屏划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。 Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit.

可选地，所述第一判定模块根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：Optionally, the first determining module determines, according to the photocurrent information of each photosensitive unit, whether each photosensitive unit is touched, including:

所述第一判定模块周期性进行所述判定，对一个光敏单元的一次判定中，如满足设定的被触摸条件，则判定所述光敏单元被触摸；所述被触摸条件包括以下条件中的一种或多种：The first determining module periodically performs the determining, and in one determination of a photosensitive unit, if the set touched condition is satisfied, determining that the photosensitive unit is touched; the touched condition includes the following conditions One or more:

条件二：所述光敏单元的光电流值和预期值的差值小于设定的第二阈值；其中，所述预期值根据所述光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定；Condition 2: the difference between the photocurrent value of the photosensitive unit and the expected value is less than a set second threshold; wherein the expected value is based on light intensity information of the display unit around the photosensitive unit and light reflection of the specified touch object Rate determination

可选地，所述***还包括：Optionally, the system further includes:

第二判定模块，设置为根据判定为被触摸的光敏单元的位置信息确定被触摸区域；如所述被触摸区域和预期触摸区域的形状和/或大小相匹配，则判定发生触摸操作，如果不匹配，则判定未发生触摸操作。a second determining module, configured to determine a touched area according to position information of the photosensitive unit determined to be touched; if the shape and/or size of the touched area and the expected touch area match, determining that a touch operation occurs, if not If it matches, it is determined that no touch operation has occurred.

可选地，所述***还包括：模式设置模块，设置为配置触摸模式为近距离触摸模式或远距离触摸模式；Optionally, the system further includes: a mode setting module configured to configure the touch mode to be a proximity touch mode or a remote touch mode;

所述第一判定模块，还设置为在近距离触摸模式下，使用所述被触摸条件中所述条件一、条件二和条件三中的一种或多种，在远距离触摸模式下，使用所述被触摸条件中所述条件一和条件三中的一种或多种；The first determining module is further configured to use one or more of the condition one, the second condition and the third condition in the touched condition in a short-distance touch mode, and use in a remote touch mode One or more of the conditions 1 and 3 in the touched condition;

所述第二判定模块，还设置为在近距离触摸模式下，使用的所述预期触摸区域至少包括手指触摸时的预期触摸区域；在远距离触摸模式下，使用的所述预期触摸区域至少包括使用光束触摸时的预期触摸区域。The second determining module is further configured to, in the short-distance touch mode, the expected touch area used at least includes an expected touch area when the finger is touched; in the remote touch mode, the expected touch area used includes at least The expected touch area when using the beam touch.

本发明实施例还提供了一种电子设备，包括：An embodiment of the present invention further provides an electronic device, including:

如上所述的任一集成光电触摸装置； Any of the integrated optoelectronic touch devices as described above;

如上所述的任一触摸识别***；Any of the touch recognition systems described above;

所述集成光电触摸装置中的光电转换控制***将得到的所述每个光敏元件的光电流信息和对应的位置信息一起发送给所述触摸识别***。The photoelectric conversion control system in the integrated photoelectric touch device transmits the obtained photocurrent information of each of the photosensitive elements together with corresponding position information to the touch recognition system.

上述触摸识别方法、***及电子设备可以在集成光电触摸屏上实现触摸识别，减少了显示屏的厚度，无需对显示器和触摸屏进行组装，功耗小。由于使用的是光电转换，也适于通过手电筒或激光笔等实现远程控制，还可以方便地在水下等特殊的环境使用。The above touch recognition method, system and electronic device can realize touch recognition on the integrated photoelectric touch screen, reduce the thickness of the display screen, eliminate the need to assemble the display and the touch screen, and consume small power. Since it uses photoelectric conversion, it is also suitable for remote control by flashlight or laser pointer, etc. It can also be conveniently used in special environments such as underwater.

附图概述BRIEF abstract

图1A和图1B是相关红外触摸屏实现触摸识别的两种原理示意图；1A and FIG. 1B are schematic diagrams of two principles for implementing touch recognition by an related infrared touch screen;

图2是相关OLED的结构示意图；2 is a schematic structural view of a related OLED;

图3是本发明实施例一集成光电触摸屏的局部结构示意图；3 is a partial schematic structural view of an integrated photoelectric touch screen according to an embodiment of the present invention;

图4是本发明实施例一集成光电触摸屏的整体示意图；4 is a schematic overall view of an integrated photoelectric touch screen according to an embodiment of the present invention;

图5是本发明实施例二集成光电触摸装置的结构图；5 is a structural diagram of an integrated photoelectric touch device according to Embodiment 2 of the present invention;

图6是本发明实施例三触摸识别方法的流程图；6 is a flowchart of a third touch recognition method according to an embodiment of the present invention;

图7是本发明实施例三触摸识别***的模块图；7 is a block diagram of a touch recognition system according to a third embodiment of the present invention;

图8是本发明实施例集成光电触摸屏在手指触摸时的光路示意图；8 is a schematic diagram of an optical path of an integrated photoelectric touch screen when a finger is touched according to an embodiment of the present invention;

图9是本发明实施例集成光电触摸屏在光束触摸时的光路示意图。FIG. 9 is a schematic diagram of an optical path of an integrated photoelectric touch screen when a light beam is touched according to an embodiment of the present invention.

本发明的实施方式Embodiments of the invention

下文中将结合附图对本发明实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

实施例一 Embodiment 1

本实施例提供一种集成光电触摸屏，将发光二极管集成在显示器中，无需另外的触摸屏。The embodiment provides an integrated photoelectric touch screen, and the light emitting diode is integrated in the display, An additional touch screen is required.

为了方便说明，实施例的显示器以有机发光二极管(OLED，Organic Light-Emitting Diode)显示器为示例，但本发明实施例不局限于此，可以是任何半导体发光器件，如有源矩阵有机发光二极管(AMOLED，active matrix organic light emitting diode)或超级AMOLED等等。For convenience of description, the display of the embodiment is exemplified by an Organic Light-Emitting Diode (OLED) display, but the embodiment of the present invention is not limited thereto, and may be any semiconductor light-emitting device such as an active matrix organic light-emitting diode ( AMOLED, active matrix organic light emitting diode) or super AMOLED and so on.

OLED实质是在二极管的阴极和阳极中间增加了两层有机物质，分别为导电层和光的发射层。发射层中发射红、绿、蓝三种原色光。图2示出了相关技术中OLED屏的OLED10(可对应于OLED屏一个像素点)的基本结构，分为5层，从下往上分别是：The OLED essentially adds two layers of organic matter between the cathode and the anode of the diode, which are the conductive layer and the light emitting layer, respectively. Three primary colors of red, green and blue are emitted in the emission layer. FIG. 2 shows a basic structure of an OLED 10 (corresponding to one pixel point of an OLED screen) of an OLED panel in the related art, which is divided into five layers, from bottom to top:

基底11，由透明塑料、玻璃等构成，用来支撑整个OLED；The substrate 11 is made of transparent plastic, glass or the like for supporting the entire OLED;

阳极13，透明，在电流流过设备时消除电子；The anode 13 is transparent and eliminates electrons when current flows through the device;

导电层15，由有机塑料分子构成，这些分子传输由阳极而来的“空穴”(正电子)；The conductive layer 15 is composed of organic plastic molecules which transport "holes" (positrons) from the anode;

发射层17，由有机塑料分子(不同于导电层15)构成，这些分子传输从阴极而来的电子，发光过程主要在这一层进行。由于自然界的光由红、绿、蓝三色光组成，因此在这一层中，分别由红、绿、蓝三个发光单元组成；The emissive layer 17 is composed of organic plastic molecules (other than the conductive layer 15) which transport electrons from the cathode, and the luminescence process is mainly performed at this layer. Since the light of nature is composed of red, green and blue light, in this layer, it is composed of three light-emitting units of red, green and blue respectively;

阴极19，可以是透明的，也可以不透明，视OLED类型而定，当设备内有电流流通时，阴极会将电子注入电路；The cathode 19 may be transparent or opaque, depending on the type of the OLED. When current flows in the device, the cathode will inject electrons into the circuit;

半导体材料中，除了可发光的LED外，还有基于半导体光电效应的光敏元件，即可以把光信号转换成电信号的光电传感器件。本实施例以光电二极管为例，但本发明实施例也可以使用其他的光敏元件，如光敏电阻、光电耦合器、光电三极管等等。光电二极管是在反向电压作用下工作的，没有光照时，反向电流极其微弱，叫暗电流；有光照时，反向电流迅速增大到几十微安，称为光电流。光的强度越大，反向电流也越大。Among semiconductor materials, in addition to illuminable LEDs, there are photosensors based on semiconductor photoelectric effects, that is, photosensor devices that can convert optical signals into electrical signals. In this embodiment, a photodiode is taken as an example, but other photosensitive elements such as a photoresistor, a photocoupler, a phototransistor and the like can also be used in the embodiment of the present invention. The photodiode works under the action of reverse voltage. When there is no light, the reverse current is extremely weak, called dark current. When there is illumination, the reverse current rapidly increases to several tens of microamps, called photocurrent. The greater the intensity of the light, the greater the reverse current.

光电二极管同OLED一样都是半导体材料，光电二极管(以PN型光电二极管为例)20的结构可参见图3，包括三个部分：The photodiode is the same as the OLED, and the structure of the photodiode (taking the PN photodiode as an example) 20 can be seen in Figure 3. It consists of three parts:

基底11，由透明塑料，玻璃等构成，用来支撑整个光电二极管；The substrate 11 is made of transparent plastic, glass or the like for supporting the entire photodiode;

阳极21，吸收电子，产生空穴正电荷； The anode 21 absorbs electrons and generates positive charges of holes;

阴极23，在偏置电压的作用下，接收光子使电子活性增强，产生光电流的变化。The cathode 23 receives photons under the action of a bias voltage to enhance electron activity and cause a change in photocurrent.

此外还有遮光层25，设置于每一光敏元件20的全部侧面。Further, a light shielding layer 25 is provided on all sides of each photosensitive member 20.

图3示出了本实施例集成光电触摸屏的局部结构，图4示出了本实施例集成光电触摸屏的整体结构。如图所示，该集成光电触摸屏1包括多个显示元件10构成的显示器部分；及集成在所述显示器部分中的多个光敏元件20。本实施例中，多个光敏元件20在集成光电触摸屏上1均匀分布，每一光敏元件20的周边均为显示元件10，每一光敏元件20的全部侧面均设有遮光层25，顶部开窗，以防止OLED 10的光线射入。但在另一实施例中，可以将集成光电触摸屏1上的多个光敏元件20分为多组，多组光敏元件在集成光电触摸屏1上均匀分布(以组为单位均匀分布)。每组包括相邻设置的N个光敏元件20，每组N个光敏元件20的周边为显示元件10，每组N个光敏元件20与显示元件10相邻的部分侧面设有遮光层，顶部开窗，以防止显示元件10的光线射入，N为大于等于2的正整数。FIG. 3 shows a partial structure of the integrated photoelectric touch screen of the present embodiment, and FIG. 4 shows the overall structure of the integrated photoelectric touch screen of the present embodiment. As shown, the integrated optoelectronic touch screen 1 includes a display portion of a plurality of display elements 10; and a plurality of light sensitive elements 20 integrated in the display portion. In this embodiment, the plurality of photosensitive elements 20 are uniformly distributed on the integrated photoelectric touch screen, and the periphery of each photosensitive element 20 is a display element 10, and the light-shielding layer 25 is provided on all sides of each photosensitive element 20, and the top window is opened. To prevent the light from entering the OLED 10 from entering. However, in another embodiment, the plurality of photosensitive elements 20 on the integrated photoelectric touch screen 1 can be divided into a plurality of groups, and the plurality of sets of photosensitive elements are evenly distributed on the integrated photoelectric touch screen 1 (evenly distributed in units of groups). Each set includes N photosensitive elements 20 disposed adjacently, and the periphery of each of the N photosensitive elements 20 is a display element 10, and a portion of each of the N photosensitive elements 20 adjacent to the display element 10 is provided with a light shielding layer, and the top is opened. a window to prevent light from entering the display element 10, and N is a positive integer greater than or equal to 2.

本实施例中的显示元件10为OLED，光敏元件20为光电二极管。如图3所示，OLED 10的结构没有改变，光电二级管20的侧边增加了遮光层25，顶部开窗。遮光层25采用不透光的物质制成以防止OLED 10的光线漫反射进入到光电二极管20中，使光电二极管20只接收垂直入射的光。可选地，显示元件10和光敏元件20使用同一基底11制成。The display element 10 in this embodiment is an OLED, and the photosensitive element 20 is a photodiode. As shown in FIG. 3, the structure of the OLED 10 is not changed, and the light-emitting layer 25 is added to the side of the photodiode 20, and the top window is opened. The light shielding layer 25 is made of an opaque substance to prevent diffused reflection of light from the OLED 10 into the photodiode 20, so that the photodiode 20 receives only light that is normally incident. Alternatively, display element 10 and photosensitive element 20 are made using the same substrate 11.

图4示出了本实施例集成光电触摸屏1的整体结构，该集成光电触摸屏1上均匀分布有多个OLED 10和多个光电二极管20，且每一光电二极管20的周边均为OLED 10。该多个光电二极管20按照阵列形式排列，图中，多个光电二极管20以矩形阵列的形式排列，但本发明实施例不局限于此，还可以构成其他多边形(如三角形、五边形、六边形等)、梯形、圆形等多种阵列形式。图中的每一OLED 10可以对应于显示屏上的一个像素点，每一光电二极管20也可以对应于显示屏上的一个像素。但本发明实施例不局限于此，如也可以对应于一个次像素点、多个像素点等显示单位。集成光电触摸屏1上的光电二极管20的分布密度可以根据触摸需要的灵敏度和分辨率，以及OLED屏的像素排列结构来确定，本发明实施例对此不做限制。 FIG. 4 shows the overall structure of the integrated photoelectric touch screen 1 of the present embodiment. The integrated photoelectric touch screen 1 is uniformly distributed with a plurality of OLEDs 10 and a plurality of photodiodes 20, and the periphery of each photodiode 20 is an OLED 10. The plurality of photodiodes 20 are arranged in an array form. In the figure, the plurality of photodiodes 20 are arranged in a rectangular array, but the embodiment of the present invention is not limited thereto, and other polygons (such as a triangle, a pentagon, and a sixth) may be formed. A variety of array forms such as a triangle, etc., a trapezoid, a circle, and the like. Each OLED 10 in the figure may correspond to one pixel on the display screen, and each photodiode 20 may also correspond to one pixel on the display screen. However, the embodiment of the present invention is not limited thereto, and may also correspond to a display unit such as one sub-pixel point or a plurality of pixel points. The distribution density of the photodiode 20 on the integrated photoelectric touch screen 1 can be determined according to the sensitivity and resolution required for the touch, and the pixel arrangement structure of the OLED screen, which is not limited by the embodiment of the present invention.

实施例二Embodiment 2

本实施例涉及一种集成光电触摸装置，包括实施例一的集成光电触摸屏1，如图5所示，该集成光电触摸装置还包括显示驱动***2和光电转换控制***3，光电转换控制***3是新增的模块，其中：The embodiment relates to an integrated photoelectric touch device, including the integrated photoelectric touch screen 1 of the first embodiment. As shown in FIG. 5, the integrated photoelectric touch device further includes a display driving system 2 and a photoelectric conversion control system 3, and the photoelectric conversion control system 3 Is a new module, where:

显示驱动***2，设置为驱动显示器部分的多个显示元件；a display drive system 2 configured to drive a plurality of display elements of the display portion;

光电转换控制***3，设置为为集成光电触摸屏1上的所有光敏元件供电，实时采集所述所有光敏元件的光电流并进行处理，得到每个光敏元件的光电流信息。The photoelectric conversion control system 3 is arranged to supply power to all the photosensitive elements on the integrated photoelectric touch screen 1, and collect the photocurrents of all the photosensitive elements in real time and process them to obtain photocurrent information of each photosensitive element.

如图5所示，所述光电转换控制***3又包括：As shown in FIG. 5, the photoelectric conversion control system 3 further includes:

电源子***31，设置为给所述所有光敏元件提供工作电压，及为所述光电转换控制***3中的其他子***供电；a power subsystem 31 configured to provide an operating voltage to all of the photosensitive elements and to power other subsystems in the photoelectric conversion control system 3;

信号采集子***33，设置为实时采集每个光敏元件的光电流，输出多个电流或电压模拟信号，即可以采集每个光电二极管的光电流并输出，也可以通过标准电阻、三极管、集成运放等电路方式，将光电流转换成对应的电压后再输出；The signal acquisition subsystem 33 is configured to collect the photocurrent of each photosensitive element in real time and output a plurality of current or voltage analog signals, that is, the photocurrent of each photodiode can be collected and output, or can be passed through a standard resistor, a triode, and an integrated circuit. Put the circuit mode into the corresponding voltage and then output it;

信号放大子***35，设置为将所述信号采集子***33输出的多个电流或电压模拟信号放大；由于光电流的值一般比较小，基本都是微安级，因此可以将信号进行放大。从电路结构上，信号放大子***35可以单独存在，也可以与信号采集子***33结合在一起，采集信号的同时进行信号放大；以及The signal amplifying subsystem 35 is arranged to amplify a plurality of current or voltage analog signals output by the signal acquisition subsystem 33; since the value of the photocurrent is generally small, it is basically a micro-ampere level, so that the signal can be amplified. The signal amplifying subsystem 35 may exist separately from the circuit structure, or may be combined with the signal acquisition subsystem 33 to perform signal amplification while acquiring signals;

信号处理及传输子***37，设置为将放大后的所述多个电流或电压模拟信号转换成多个数字信号，作为每个光敏元件的光电流信息。The signal processing and transmission subsystem 37 is configured to convert the amplified plurality of current or voltage analog signals into a plurality of digital signals as photocurrent information for each of the photosensitive elements.

上述所述光电转换控制***3也可以视为包括相对独立的多个光电转换控制电路，每一光电转换控制电路用于对一个光电二极管的光电流进行采集、放大、处理和传输。The photoelectric conversion control system 3 described above can also be considered to include a plurality of relatively independent photoelectric conversion control circuits, each photoelectric conversion control circuit for collecting, amplifying, processing and transmitting the photocurrent of one photodiode.

上述实施例一中的集成光电触摸屏和实施例二中的集成光电触摸装置，将光敏元件集成在显示器中来实现触摸识别，减少了显示屏的整体厚度，无需对显示器和触摸屏进行组装，另外，由于使用的光源是OLED的自发光，没有增加额外的LED光源，功耗可以做到很小。The integrated photoelectric touch screen in the first embodiment and the integrated photoelectric touch device in the second embodiment integrate the photosensitive element in the display to realize touch recognition, thereby reducing the overall thickness of the display screen, The display and the touch screen need to be assembled. In addition, since the light source used is self-luminous of the OLED, no additional LED light source is added, and the power consumption can be made small.

实施例三Embodiment 3

本实施例涉及一种基于集成光电触摸屏的触摸识别方法，集成光电触摸屏采用实施例一中的集成光电触摸屏，如图6所示，所述方法包括：The embodiment relates to a touch recognition method based on an integrated photoelectric touch screen. The integrated photoelectric touch screen adopts the integrated photoelectric touch screen in the first embodiment. As shown in FIG. 6, the method includes:

步骤110，实时检测得到集成光电触摸屏上每个光敏单元的光电流信息；Step 110: Real-time detection of photocurrent information of each photosensitive unit on the integrated photoelectric touch screen;

步骤120，根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；Step 120: Determine, according to photocurrent information of each photosensitive unit, whether each photosensitive unit is touched;

其中，所述集成光电触摸屏被划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。如上述步骤描述的，每个光敏单元分别进行是否被触摸的判定。Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit. As described in the above steps, each photosensitive unit performs a determination as to whether or not it is touched.

本实施例中，根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：In this embodiment, determining whether each of the photosensitive cells is touched according to the photocurrent information of each photosensitive unit includes:

条件一：Condition one:

所述光敏单元的光电流值与环境光电流值的差值大于设定的第一阈值；其中，所述环境光电流值根据设定区域中光敏单元的光电流值计算得到；The difference between the photocurrent value of the photosensitive unit and the ambient photocurrent value is greater than a set first threshold; wherein the ambient photocurrent value is calculated according to the photocurrent value of the photosensitive unit in the set region;

条件二：Condition 2:

所述光敏单元的光电流值和预期值的差值小于设定的第二阈值；其中，所述预期值根据所述光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定；The difference between the photocurrent value of the photosensitive unit and the expected value is less than a set second threshold; wherein the expected value is determined according to light intensity information of the display unit around the photosensitive unit and light reflectivity of the specified touch object;

条件三：Condition three:

所述光敏单元当前的光电流值与上次判定时的光电流值的差值大于设定的第三阈值。 The difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the last determination is greater than a set third threshold.

上述条件一中的设定区域可以为所述集成光电触摸屏的整个区域，也可以为部分区域。The setting area in the above condition 1 may be the entire area of the integrated photoelectric touch screen, or may be a partial area.

上述条件二中的指定触摸物包括手指和书写笔中的一种或多种，还可以包括其他允许使用以实现触摸操作的其他物体。The specified touch object in Condition 2 above includes one or more of a finger and a stylus, and may include other objects that are allowed to be used to implement a touch operation.

除特别指出外，上述条件一和条件二中的光电流值、环境光电流值、预期值等指的是当前值。上述所述光敏单元的光电流值与环境光电流值的差值表示光敏单元的光电流值减去环境光电流值得到的差的绝对值。其他差值与此类似。Unless otherwise specified, the photocurrent value, the ambient photocurrent value, the expected value, and the like in the above conditions 1 and 2 refer to the current value. The difference between the photocurrent value of the photosensitive unit and the ambient photocurrent value represents the absolute value of the difference between the photocurrent value of the photosensitive cell and the ambient photocurrent value. Other differences are similar.

此外，对一个光敏单元的一次判定中，如所述光敏单元包括多个光敏元件，所述光敏单元的光电流值可以取所述多个光敏元件的光电流值的加权平均值(权值相同时即取均值)。环境光电流值根据设定区域中光敏单元的光电流值计算时，可以对设定区域中所有光敏单元的光电流值加权平均得到。Further, in one determination of a photosensitive cell, as the photosensitive cell comprises a plurality of photosensitive elements, the photocurrent value of the photosensitive cell may take a weighted average of the photocurrent values of the plurality of photosensitive elements (weight phase At the same time, the average value is taken). When the ambient photocurrent value is calculated according to the photocurrent value of the photosensitive cell in the set region, the photocurrent values of all the photosensitive cells in the set region can be weighted and averaged.

判定每个光敏单元是否被触摸后，如果存在被摸触的光敏单元，并不表示一定发生触摸操作。本实施例中，根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸之后，还包括：After determining whether each photosensitive unit is touched, if there is a photosensitive unit that is touched, it does not mean that a touch operation must occur. In this embodiment, after determining whether each photosensitive unit is touched according to the photocurrent information of each photosensitive unit, the method further includes:

对于光电集成触摸屏，可以通过光束(如激光、手电筒等)来实现远距离触摸，远距离程控制和近距离触摸在触摸识别上以及预期触摸区域的大小和/或形状上可以有所不同，可以配置不同的模式以实现更准确的识别。因此，本实施例触摸识别方法还可以包括：For optoelectronic integrated touch screens, long-distance touch can be achieved by light beams (such as lasers, flashlights, etc.). Remote range control and proximity touch can vary in touch recognition and the size and/or shape of the intended touch area. Configure different modes for more accurate identification. Therefore, the touch recognition method of this embodiment may further include:

配置触摸模式为近距离触摸模式或远距离触摸模式；Configuring the touch mode to a proximity touch mode or a remote touch mode;

在远距离触摸模式下，所述被触摸条件包括所述条件一和条件三中的一种或多种，所述预期触摸区域至少包括光束触摸时的预期触摸区域。 In the remote touch mode, the touched condition includes one or more of the condition one and the third condition, the expected touch area including at least an expected touch area when the light beam is touched.

被触摸区域和预期触摸区域的匹配算法可以采用相关技术的匹配算法。The matching algorithm of the touched area and the expected touch area may employ a matching algorithm of the related art.

相应地，本实施例还提供了一种基于集成光电触摸屏的触摸识别***，所述集成光电触摸屏采用实施例一中的集成光电触摸屏，如图7所示，所述***包括：Correspondingly, the embodiment further provides a touch recognition system based on an integrated photoelectric touch screen. The integrated photoelectric touch screen adopts the integrated photoelectric touch screen in the first embodiment. As shown in FIG. 7, the system includes:

信息接收模块10，设置为接收实时检测得到的集成光电触摸屏上每个光敏单元的光电流信息；以及The information receiving module 10 is configured to receive photocurrent information of each photosensitive unit on the integrated photoelectric touch screen obtained in real time;

第一判定模块20，设置为根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；The first determining module 20 is configured to determine, according to the photocurrent information of each of the photosensitive cells, whether each of the photosensitive cells is touched;

其中，所述集成光电触摸屏被划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit.

可选地，所述第一判定模块20根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：Optionally, the first determining module 20 determines, according to the photocurrent information of each photosensitive unit, whether each photosensitive unit is touched, including:

所述第一判定模块20周期性进行所述判定，对一个光敏单元的一次判定中，如满足设定的被触摸条件，则判定所述光敏单元被触摸；所述被触摸条件包括以下条件中的一种或多种：The first determining module 20 periodically performs the determination. In one determination of a photosensitive unit, if the set touched condition is satisfied, it is determined that the photosensitive unit is touched; the touched condition includes the following conditions: One or more of:

条件一：Condition one:

条件二：Condition 2:

条件三：Condition three:

所述光敏单元当前的光电流值与上次判定时的光电流值的差值大于设定的第三阈值。The difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the last determination is greater than a set third threshold.

可选地，所述***还包括： Optionally, the system further includes:

可选地，所述***还包括：Optionally, the system further includes:

模式设置模块，设置为配置触摸模式为近距离触摸模式或远距离触摸模式；a mode setting module configured to configure the touch mode to a proximity touch mode or a remote touch mode;

另外，所述第一判定模块对一个光敏单元的一次判定中，如所述光敏单元包括多个光敏元件，所述光敏单元的光电流值可以取所述多个光敏元件的光电流值的均值。In addition, in the first determination of the photosensitive cell by the first determining module, if the photosensitive cell comprises a plurality of photosensitive elements, the photocurrent value of the photosensitive cell may take the mean value of the photocurrent values of the plurality of photosensitive elements. .

下面以显示元件为OLED、光敏元件为发光二极管的集成光电触摸屏为例，对上述触摸识别方法中的被触摸条件进行分析。The following is an example of an integrated photoelectric touch screen in which the display element is an OLED and the light sensitive element is a light emitting diode, and the touched condition in the above touch recognition method is analyzed.

集成光电触摸屏中的光电二极管可能接收三个方面的光源信号。第一，来自周围环境的光；第二，来自触摸时，手指反射的OLED屏的光；第三，来自外界主动光源的光(比如手电筒或激光笔等)。The photodiode in the integrated optoelectronic touch screen may receive three sources of light source signals. First, light from the surrounding environment; second, light from the OLED screen reflected by the finger when touched; third, light from an external active light source (such as a flashlight or laser pointer, etc.).

图8和图9是集成光电触摸屏的光电转换实现的示意图。图8描述的是，当有手指接近集成光电触摸屏时，被手指覆盖区域的OLED发射的光有一部分经过手指的反射进入到OLED附近的光电二极管中。此部分的光电二极管将反射光转换成电流信号1输出。没有被手指覆盖部分的OLED光直接散射到空气中，此部分的光电二极管接收环境光的照射，将环境光转换成电流信号2输出。图9描述的是，当没有手指接近，但是有手电或激光等光源照射到集成光电触摸屏上时，在手电或激光等照射区域的光电二极管将手电或激光转换成电流信号1输出。没有被照射的区域，光电二极管接收环境光的照射，将环境光转换成电流信号2输出。8 and 9 are schematic views of photoelectric conversion implementation of an integrated photoelectric touch screen. Figure 8 illustrates that when a finger approaches the integrated optoelectronic touch screen, a portion of the light emitted by the OLED that is covered by the finger is partially reflected by the finger into the photodiode near the OLED. This part of the photodiode converts the reflected light into a current signal 1 output. The OLED light that is not covered by the finger is directly scattered into the air, and the photodiode of this portion receives the illumination of the ambient light, converting the ambient light into the current signal 2 output. Figure 9 shows that when no finger is approaching, but a light source such as a flashlight or laser is applied to the integrated photoelectric touch screen, the photodiode in the illuminated area such as a flashlight or laser will flash or excite. Light is converted into a current signal 1 output. In the area that is not illuminated, the photodiode receives the illumination of the ambient light and converts the ambient light into a current signal 2 output.

当有手指接近OLED屏时，由于手指头的遮挡，环境光无法照射到光电二级管上，因此在手指头大小的区域内只有OLED发射的光会通过手指的反射进入到光电二极管中，假定反射光对应的光电流为I_反射。而手指头以外的区域内，由于有遮光层，OLED的漫射光无法直接照射到光电二极管上，光电二极管接收的只能是环境光的直射，假定环境光对应的光电流为I_直射。OLED经过手指反射的光和环境光在光的强度上是不一样的(即使极个别情况下相近，也可以通过遮挡环境光、调整显示光强度、相应阈值等方式克服)，而在光电二极管的特性中，不同的光照强度对应不同的光电流，也即：I_反射-I_直射＝ΔI≠0。I_反射和I_直射可通过电路采集，放大得到光电流值。When a finger approaches the OLED screen, ambient light cannot be irradiated onto the photodiode due to the occlusion of the finger. Therefore, only the light emitted by the OLED enters the photodiode through the reflection of the finger in the area of the finger size, assuming The photocurrent corresponding to the reflected light is an I _reflection . In the area other than the finger, due to the light shielding layer, the diffused light of the OLED cannot be directly irradiated onto the photodiode, and the photodiode receives only the direct light of the ambient light, and the photocurrent corresponding to the ambient light is assumed to be _direct . The light reflected by the OLED through the finger and the ambient light are different in the intensity of the light (even if it is similar in some cases, it can be overcome by shielding the ambient light, adjusting the display light intensity, corresponding threshold, etc.), while in the photodiode In the characteristics, different light intensities correspond to different photocurrents, namely: I _{reflection -} I _direct = ΔI ≠ 0. I _reflection and I _direct can be collected by the circuit and amplified to obtain the photocurrent value.

在每次判定时，先确定一个环境光直射的环境光电流值I_直射(在没有手指反射光时，可以读取每个光电二极管的光电流值进行加权平均得到)，并设定一个ΔI的阈值。当有手指靠近屏幕时，部分光电二极管接收反射光，光电流变为反射光对应的光电流I_反射。这时计算每个光电二极管(假定每一光敏单元包括一个光电二极管)的光电流值与I_直射的差值，即I-I_直射＝ΔI。由于环境光直射部分的光电二极管的光电流值与环境光电流值I_直射差别很小，因此这一部分的ΔI趋近为零。而手指反射部分的光与环境光差别很大，因此这一部分的I_反射-I_直射＝ΔI的绝对值将大于零。当部分光电二极管对应的ΔI的绝对值大于设定的阈值(对应于上述条件一)时，判定这部分光电二极管被触摸，再根据这部分光电二极管的位置数据，可以确定此时集成光电触摸屏上的被触摸区域。In each determination, first determine a direct ambient light current value I _direct radiation (in the absence of finger reflection light, you can read the photocurrent value of each photodiode to obtain a weighted average), and set a ΔI Threshold. When a finger is close to the screen, the reflected light receiving portion of the photodiode, a photocurrent I becomes a photocurrent corresponding to the light _reflected. At this time, the difference between the photocurrent value of each photodiode (assuming that each photosensitive cell includes one photodiode) and I _direct is calculated, that is, II _{direct light} = ΔI. Since the photocurrent value of the photodiode of the direct portion of the ambient light is _slightly different from the ambient photocurrent value I, the ΔI of this portion approaches zero. The light reflected from the finger is very different from the ambient light, so the absolute value of the I _{reflection -} I _direct = ΔI of this part will be greater than zero. When the absolute value of the ΔI corresponding to the partial photodiode is greater than the set threshold (corresponding to the above condition 1), it is determined that the part of the photodiode is touched, and according to the position data of the part of the photodiode, the integrated photoelectric touch screen can be determined at this time. Touched area.

由于任何形状的物体(黑体除外)都可以反射光，为了防止非手指的其他物体反射造成的误触发，可以通过算法确定ΔI值大于阈值的光电二极管(即接收反射光的部分)的大小和/或形状，只有大小和/或形状和预期触摸物如手指的大小和/或形状匹配才确定是一个有效的触摸操作。这样可以排除打电话时脸部接触或整个手掌接触等造成的误触发事件。同时，由于环境光可能不是一个稳定的状态，可能存在一半明亮一半阴影的情况，这个时候，可以根据阴影或明亮部分的大小和/或形状来对环境光电流值I_直射进行动态调整，将整个屏幕分成多个区域，在不同的部分区域设置不同的环境光电流值I_直射或对环境光电流基准值I_直射进行加权平均，消除环境光带来的影响，确定是否有触摸事件发生。Since any shape of the object (except the black body) can reflect light, in order to prevent false triggering caused by reflection of other objects other than the finger, the size of the photodiode (ie, the portion receiving the reflected light) whose ΔI value is greater than the threshold value can be determined by an algorithm and/or Or a shape that is determined to be an effective touch operation only if the size and/or shape matches the size and/or shape of the intended touch object, such as a finger. This can eliminate false triggering events caused by facial contact or total palm contact during phone calls. Meanwhile, since the ambient light may not be a steady state, there may be bright half half shadow cases, this time may be ambient light current value I _direct dynamically adjusted according to the size of the shadow or a bright portion and / or shape, the entire screen is divided into a plurality of areas, set a different ambient light at different current values I partial regions or _direct ambient light reference current value I _direct the weighted average, to eliminate the influence of ambient light to bring determine whether the touch event occurs.

由于使用了光电二极管检测光线的变化实现触摸检测，因此，除了OLED反射光外，外界的手电、激光等也可以作为一个触摸操作的触发光源。这样，可以实现远距离的触摸操控。当有手电光照射在OLED屏上时，由手电照射的部分光电二极管的光电流为I_手电,由于手电光强于环境光，当手电光照射部分区域的光电流I_手电与环境光电流值I_直射的差值ΔI大于设置的ΔI阈值时，同样可以激发一个触摸操作。当然，为了防止不相干的光源照射产生误触发，可以设置照射光斑的大小，只有满足要求的手电或激光笔照射时，才触发一个触摸事件。Since the photodiode is used to detect the change of the light to realize the touch detection, in addition to the OLED reflected light, the external flashlight, laser, etc. can also be used as a trigger source for the touch operation. In this way, remote touch manipulation can be achieved. When an irradiation flashlight when the OLED screen, a photocurrent of the photodiode portion of the flashlight illumination is I _flashlight, since the flashlight light intensity ambient light, when the photocurrent I _flashlight ambient light current value of the light irradiated portion region flashlight I _{When the direct} difference ΔI is greater than the set ΔI threshold, a touch operation can also be excited. Of course, in order to prevent false triggering of the incoherent light source, the size of the illumination spot can be set, and only a touch event is triggered when the required flashlight or laser pen illumination is met.

对于一个光电二极管上的反射光而言，与触摸物的反射率和周边显示单元(指最小的显示单位)的光强度有关，其应关系可以根据理论计算和/或实际测试确定。OLED在显示图像时，图像的动态变化，会导致OLED发光强弱的变化，但OLED的光强度是可以获取的，触摸物的反射率也可以预先设定(如可以设定为手指的反射率，书写笔的反射率、其他允许使用的触摸物体的反射率等)。因此在判定时，可以根据光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定一个预期值，然后比较所述光敏单元的光电流值和预期值的差值，如果小于设定的阈值即判定该光敏单元被触摸(即上述条件二)。这种判定条件受外界环境光的影响较小。For reflected light on a photodiode, it is related to the reflectivity of the touch object and the light intensity of the peripheral display unit (referred to as the smallest display unit), and the relationship can be determined according to theoretical calculations and/or actual tests. When an OLED displays an image, the dynamic change of the image may cause a change in the intensity of the OLED, but the light intensity of the OLED may be obtained, and the reflectance of the touch object may also be preset (eg, the reflectance of the finger may be set) , the reflectivity of the pen, the reflectivity of other touch objects that are allowed to be used, etc.). Therefore, at the time of determination, an expected value may be determined according to the light intensity information of the display unit around the photosensitive unit and the light reflectance of the specified touch object, and then the difference between the photocurrent value of the photosensitive unit and the expected value may be compared, if less than the setting The threshold value determines that the photosensitive unit is touched (ie, condition two above). This determination condition is less affected by ambient light.

另外，当发生触摸操作时，被触摸的光电二极管接受的光线由环境光直射变成周边OLED的反射光，因此，光敏单元当前的光电流值与上次判定时的光电流值的差值会发生较大小化，如果大于设定的阈值可以判定所述光敏单元被触摸(条件三)。当然，对于上次判定为被触摸的光敏单元，由于其光线变化并不一定很大，需要通过其他的条件来判定。In addition, when a touch operation occurs, the light received by the touched photodiode is directly reflected by the ambient light into the reflected light of the peripheral OLED. Therefore, the difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the time of the last determination is A large reduction occurs, and if it is greater than the set threshold, it can be determined that the photosensitive unit is touched (Condition 3). Of course, for the photosensitive unit that was determined to be touched last time, since the change in the light is not necessarily large, it is necessary to judge by other conditions.

上述触摸识别方法实现了基于集成光电触摸屏的触摸识别。可以使用手电筒或激光笔等对其实现远程的触摸控制。由于使用的是光电转换，还可以方便地在水下等特殊的环境使用，解决电容触摸屏等在水下等环境触控灵敏降低或失灵的问题。由于可以使用手电或激光等远距离非接触式触摸操控，还可以方便的应用于人无法进入，如，有毒，易爆、密闭等环境中。The above touch recognition method realizes touch recognition based on an integrated photoelectric touch screen. Remote touch control can be achieved using a flashlight or a laser pointer. Since it is using photoelectric conversion, it can also It is convenient to use in special environments such as underwater, and solves the problem of sensitive touch reduction or malfunction of environmental touch screens such as capacitive touch screens. Because it can be used for long-distance non-contact touch control such as flashlight or laser, it can also be easily applied to people who cannot enter, such as toxic, explosive, and sealed environments.

实施例四Embodiment 4

本实施例提供一种电子设备，包括如实施例二所述的集成光电触摸装置和实施例三所述的触摸识别***。所述集成光电触摸装置中的光电转换控制***将得到的所述多个光敏元件的光电流信息和对应的位置信息(可以用编号表示，编号如用行序号和列序号组成)一起发送给所述触摸识别***。所述设备可以是手机、PDA、笔记本电脑等终端设备。The embodiment provides an electronic device, including the integrated photoelectric touch device according to the second embodiment and the touch recognition system according to the third embodiment. The photoelectric conversion control system in the integrated photoelectric touch device transmits the obtained photocurrent information of the plurality of photosensitive elements and corresponding position information (which may be represented by a number, and the number is composed of a row number and a column number) The touch recognition system. The device may be a terminal device such as a mobile phone, a PDA, or a notebook computer.

本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现，相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented by using a software function module. Formal realization. The invention is not limited to any specific form of combination of hardware and software.

工业实用性Industrial applicability

上述触摸识别方法、***及电子设备可以在集成光电触摸屏上实现触摸识别，减少了显示屏的厚度，无需对显示器和触摸屏进行组装，功耗小。由于使用的是光电转换，也适于通过手电筒或激光笔等实现远程控制，还可以方便地在水下等特殊的环境使用。 The above touch recognition method, system and electronic device can realize touch recognition on the integrated photoelectric touch screen, reduce the thickness of the display screen, eliminate the need to assemble the display and the touch screen, and consume small power. Since it uses photoelectric conversion, it is also suitable for remote control by flashlight or laser pointer, etc. It can also be conveniently used in special environments such as underwater.

Claims

一种集成光电触摸屏，包括：An integrated photoelectric touch screen comprising:

多个显示元件构成的显示器部分；以及a display portion composed of a plurality of display elements;

集成在所述显示器部分中的多个光敏元件。A plurality of light sensitive elements integrated in the display portion.
如权利要求1所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 1 wherein:

所述多个光敏元件中的每一光敏元件的周边均为显示元件；The periphery of each of the plurality of photosensitive elements is a display element;

所述每一光敏元件的全部侧面均设有遮光层，顶部开窗。Each of the photosensitive elements has a light shielding layer on all sides thereof and a window on the top.
如权利要求1所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 1 wherein:

所述多个光敏元件分为多组，每组包括相邻设置的N个光敏元件，每组N个光敏元件的周边为显示元件，N为大于等于2的正整数；The plurality of photosensitive elements are divided into a plurality of groups, each group comprising N photosensitive elements disposed adjacently, the periphery of each of the N photosensitive elements being a display element, and N being a positive integer greater than or equal to 2;

所述每组N个光敏元件与显示元件相邻的部分侧面设有遮光层，顶部开窗。The side portions of each of the N photosensitive elements adjacent to the display element are provided with a light shielding layer and a top window.
如权利要求2所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 2 wherein:

所述多个光敏元件在所述集成光电触摸屏上均匀分布。The plurality of photosensitive elements are evenly distributed over the integrated optoelectronic touch screen.
如权利要求3所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 3 wherein:

所述多组光敏元件在所述集成光电触摸屏上均匀分布。The plurality of sets of light sensitive elements are evenly distributed over the integrated optoelectronic touch screen.
如权利要求1或2或3所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 1 or 2 or 3 wherein:

所述显示元件和光敏元件使用同一基底制成。The display element and the photosensitive element are made using the same substrate.
如权利要求1或2或3所述的集成光电触摸屏，其中：The integrated optoelectronic touch screen of claim 1 or 2 or 3 wherein:

所述显示元件为发光二极管；The display element is a light emitting diode;

所述光敏元件为光敏电阻、光电二极管、光电三极管和光电耦合器中的一种。The photosensitive element is one of a photoresistor, a photodiode, a phototransistor, and a photocoupler.
一种集成光电触摸装置，包括：An integrated photoelectric touch device comprising:

如权利要求1至7中任一项所述的集成光电触摸屏；An integrated photoelectric touch screen according to any one of claims 1 to 7;

显示驱动***，设置为驱动所述显示器部分的多个显示元件；以及 a display drive system configured to drive a plurality of display elements of the display portion;

光电转换控制***，设置为为所述集成光电触摸屏上的所有光敏元件供电，实时采集所述所有光敏元件的光电流并进行处理，得到每个光敏元件的光电流信息。The photoelectric conversion control system is configured to supply power to all the photosensitive elements on the integrated photoelectric touch screen, and collect and process the photocurrents of all the photosensitive elements in real time to obtain photocurrent information of each photosensitive element.
如权利要求8所述的集成光电触摸装置，其中：The integrated optoelectronic touch device of claim 8 wherein:

所述光电转换控制***包括电源子***、信号采集子***、信号放大子***和信号处理及传输子***，其中：The photoelectric conversion control system includes a power subsystem, a signal acquisition subsystem, a signal amplification subsystem, and a signal processing and transmission subsystem, wherein:

所述电源子***，设置为给所述所有光敏元件提供工作电压，及为所述光电转换控制***中的其他子***供电；The power subsystem is configured to provide an operating voltage to all of the photosensitive elements and to power other subsystems in the photoelectric conversion control system;

所述信号采集子***，设置为实时采集每个光敏元件的光电流，输出多个电流或电压模拟信号；The signal acquisition subsystem is configured to collect the photocurrent of each photosensitive element in real time and output a plurality of current or voltage analog signals;

所述信号放大子***，设置为将所述信号采集子***输出的多个电流或电压模拟信号放大；以及The signal amplification subsystem is configured to amplify a plurality of current or voltage analog signals output by the signal acquisition subsystem;

所述信号处理及传输子***，设置为将放大后的所述多个电流或电压模拟信号转换成多个数字信号，作为所述每个光敏元件的光电流信息。The signal processing and transmission subsystem is configured to convert the amplified plurality of current or voltage analog signals into a plurality of digital signals as photocurrent information of each of the photosensitive elements.
一种基于集成光电触摸屏的触摸识别方法，其特征在于，所述集成光电触摸屏采用如权利要求1至7中任一项所述的集成光电触摸屏，所述方法包括：A touch recognition method based on an integrated photoelectric touch screen, characterized in that the integrated photoelectric touch screen adopts the integrated photoelectric touch screen according to any one of claims 1 to 7, the method comprising:

实时检测得到集成光电触摸屏上每个光敏单元的光电流信息；Real-time detection of photocurrent information of each photosensitive unit on the integrated photoelectric touch screen;

根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；Determining, according to the photocurrent information of each photosensitive unit, whether each of the photosensitive cells is touched;

其中，所述集成光电触摸屏划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit.
如权利要求10所述的方法，其中：The method of claim 10 wherein:

所述根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：Determining whether each of the photosensitive cells is touched according to photocurrent information of each photosensitive unit comprises:

周期性进行所述判定，对一个光敏单元的一次判定中，如满足设定的被触摸条件，则判定所述光敏单元被触摸；所述被触摸条件包括以下条件中的一种或多种：Performing the determination periodically, in a determination of a photosensitive cell, if the set touched condition is satisfied, determining that the photosensitive cell is touched; the touched condition includes the following conditions One or more:

条件一：Condition one:

所述光敏单元的光电流值与环境光电流值的差值大于设定的第一阈值；其中，所述环境光电流值根据设定区域中光敏单元的光电流值计算得到；The difference between the photocurrent value of the photosensitive unit and the ambient photocurrent value is greater than a set first threshold; wherein the ambient photocurrent value is calculated according to the photocurrent value of the photosensitive unit in the set region;

条件二：Condition 2:

所述光敏单元的光电流值和预期值的差值小于设定的第二阈值；其中，所述预期值根据所述光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定；The difference between the photocurrent value of the photosensitive unit and the expected value is less than a set second threshold; wherein the expected value is determined according to light intensity information of the display unit around the photosensitive unit and light reflectivity of the specified touch object;

条件三：Condition three:

所述光敏单元当前的光电流值与上次判定时的光电流值的差值大于设定的第三阈值。The difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the last determination is greater than a set third threshold.
如权利要求11所述的方法，其中：The method of claim 11 wherein:

所述设定区域为所述集成光电触摸屏的整个区域，或部分区域。The set area is an entire area, or a partial area, of the integrated photoelectric touch screen.
如权利要求11所述的方法，其中：The method of claim 11 wherein:

所述指定触摸物包括手指和书写笔中的一种或多种。The specified touch object includes one or more of a finger and a stylus.
如权利要求11或12或13所述的方法，The method of claim 11 or 12 or 13,

所述根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸之后，所述方法还包括：After determining, according to the photocurrent information of each photosensitive unit, whether each of the photosensitive cells is touched, the method further includes:

根据判定为被触摸的光敏单元的位置信息确定被触摸区域；Determining the touched area according to position information of the photosensitive unit determined to be touched;

如所述被触摸区域和预期触摸区域的形状和/或大小相匹配，则判定发生触摸操作，如果不匹配，则判定未发生触摸操作。If the shape and/or size of the touched area and the expected touch area match, it is determined that a touch operation occurs, and if not, it is determined that a touch operation has not occurred.
如权利要求14所述的方法，The method of claim 14

所述方法还包括：配置触摸模式为近距离触摸模式或远距离触摸模式，其中：The method further includes configuring the touch mode to a proximity touch mode or a remote touch mode, wherein:

在近距离触摸模式下，所述被触摸条件包括所述条件一、条件二和条件三中的一种或多种，所述预期触摸区域至少包括手指触摸时的预期触摸区域； In the near-distance touch mode, the touched condition includes one or more of the condition one, the second condition, and the third condition, and the expected touch area includes at least an expected touch area when the finger touches;

在远距离触摸模式下，所述被触摸条件包括所述条件一和条件三中的一种或多种，所述预期触摸区域至少包括光束触摸时的预期触摸区域。In the remote touch mode, the touched condition includes one or more of the condition one and the third condition, the expected touch area including at least an expected touch area when the light beam is touched.
一种基于集成光电触摸屏的触摸识别***，其特征在于，所述集成光电触摸屏采用如权利要求1至7中任一项所述的集成光电触摸屏，所述***包括：A touch recognition system based on an integrated photoelectric touch screen, characterized in that the integrated photoelectric touch screen adopts the integrated photoelectric touch screen according to any one of claims 1 to 7, the system comprising:

信息接收模块，设置为接收实时检测得到的集成光电触摸屏上每个光敏单元的光电流信息；以及An information receiving module configured to receive photocurrent information of each photosensitive unit on the integrated photoelectric touch screen obtained in real time;

第一判定模块，设置为根据所述每个光敏单元的光电流信息，分别判定所述每个光敏单元是否被触摸；a first determining module, configured to determine, according to the photocurrent information of each of the photosensitive cells, whether each of the photosensitive cells is touched;

其中，所述集成光电触摸屏划分为多个触摸识别区域，每一个触摸识别区域内的一个或多个光敏元件组成一个光敏单元。Wherein, the integrated photoelectric touch screen is divided into a plurality of touch recognition areas, and one or more photosensitive elements in each touch recognition area constitute a photosensitive unit.
如权利要求16所述的***，其中：The system of claim 16 wherein:

所述第一判定模块根据所述每个光敏单元的光电流信息，判定所述每个光敏单元是否被触摸，包括：The first determining module determines, according to the photocurrent information of each photosensitive unit, whether each photosensitive unit is touched, including:

所述第一判定模块周期性进行所述判定，对一个光敏单元的一次判定中，如满足设定的被触摸条件，则判定所述光敏单元被触摸；所述被触摸条件包括以下条件中的一种或多种：The first determining module periodically performs the determining, and in one determination of a photosensitive unit, if the set touched condition is satisfied, determining that the photosensitive unit is touched; the touched condition includes the following conditions One or more:

条件一：Condition one:

所述光敏单元的光电流值与环境光电流值的差值大于设定的第一阈值；其中，所述环境光电流值根据设定区域中光敏单元的光电流值计算得到；The difference between the photocurrent value of the photosensitive unit and the ambient photocurrent value is greater than a set first threshold; wherein the ambient photocurrent value is calculated according to the photocurrent value of the photosensitive unit in the set region;

条件二：Condition 2:

所述光敏单元的光电流值和预期值的差值小于设定的第二阈值；其中，所述预期值根据所述光敏单元周围显示单元的光强度信息和指定触摸物的光反射率确定；The difference between the photocurrent value of the photosensitive unit and the expected value is less than a set second threshold; wherein the expected value is determined according to light intensity information of the display unit around the photosensitive unit and light reflectivity of the specified touch object;

条件三：Condition three:

所述光敏单元当前的光电流值与上次判定时的光电流值的差值大于设定的第三阈值。 The difference between the current photocurrent value of the photosensitive cell and the photocurrent value at the last determination is greater than a set third threshold.
如权利要求17所述的***，The system of claim 17

所述***还包括：The system also includes:

第二判定模块，设置为根据判定为被触摸的光敏单元的位置信息确定被触摸区域；如所述被触摸区域和预期触摸区域的形状和/或大小相匹配，则判定发生触摸操作，如果不匹配，则判定未发生触摸操作。a second determining module, configured to determine a touched area according to position information of the photosensitive unit determined to be touched; if the shape and/or size of the touched area and the expected touch area match, determining that a touch operation occurs, if not If it matches, it is determined that no touch operation has occurred.
如权利要求18所述的***，The system of claim 18,

所述***还包括：The system also includes:

模式设置模块，设置为配置触摸模式为近距离触摸模式或远距离触摸模式；a mode setting module configured to configure the touch mode to a proximity touch mode or a remote touch mode;

所述第一判定模块，还设置为在近距离触摸模式下，使用所述被触摸条件中所述条件一、条件二和条件三中的一种或多种，在远距离触摸模式下，使用所述被触摸条件中所述条件一和条件三中的一种或多种；The first determining module is further configured to use one or more of the condition one, the second condition and the third condition in the touched condition in a short-distance touch mode, and use in a remote touch mode One or more of the conditions 1 and 3 in the touched condition;

所述第二判定模块，还设置为在近距离触摸模式下，使用的所述预期触摸区域至少包括手指触摸时的预期触摸区域；在远距离触摸模式下，使用的所述预期触摸区域至少包括使用光束触摸时的预期触摸区域。The second determining module is further configured to, in the short-distance touch mode, the expected touch area used at least includes an expected touch area when the finger is touched; in the remote touch mode, the expected touch area used includes at least The expected touch area when using the beam touch.
一种电子设备，包括：An electronic device comprising:

如权利要求8或9所述的集成光电触摸装置；The integrated optoelectronic touch device of claim 8 or claim 9;

如权利要求16至19中任一项所述的触摸识别***；A touch recognition system according to any one of claims 16 to 19;

其中，所述集成光电触摸装置中的光电转换控制***将得到的所述每个光敏元件的光电流信息和对应的位置信息一起发送给所述触摸识别***。Wherein, the photoelectric conversion control system in the integrated photoelectric touch device transmits the obtained photocurrent information of each photosensitive element together with corresponding position information to the touch recognition system.
一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现权利要求10-15任一项所述的方法。 A computer readable storage medium storing program instructions that, when executed, implement the method of any of claims 10-15.