CN105806516A - Pressure sensor and method for detecting pressure value - Google Patents

Pressure sensor and method for detecting pressure value Download PDF

Info

Publication number
CN105806516A
CN105806516A CN201610232766.1A CN201610232766A CN105806516A CN 105806516 A CN105806516 A CN 105806516A CN 201610232766 A CN201610232766 A CN 201610232766A CN 105806516 A CN105806516 A CN 105806516A
Authority
CN
China
Prior art keywords
pressure
transparent insulating
insulating material
sheet
capacitance
Prior art date
Application number
CN201610232766.1A
Other languages
Chinese (zh)
Inventor
阳光
Original Assignee
联想(北京)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 联想(北京)有限公司 filed Critical 联想(北京)有限公司
Priority to CN201610232766.1A priority Critical patent/CN105806516A/en
Publication of CN105806516A publication Critical patent/CN105806516A/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress in general
    • G01L1/14Measuring force or stress in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142Measuring force or stress in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors

Abstract

The embodiment of the invention provides a pressure sensor and method for detecting a pressure value and relates to sensors.Detection accuracy of the pressure value of the pressure sensor can be improved.The pressure sensor comprises a detection area.The detection area comprises at least one detection unit.Each detection unit comprises at least one capacitor sheet and at least one layer of elastic transparent insulating material connected with the capacitor sheet.The pressure sensor and method are used for detecting the pressure value.

Description

一种压力传感器和检测压力值的方法 A pressure sensor and a method for detecting a pressure value

[0001 ]本发明专利申请是分案申请,原案的申请号为:201210345912.3,申请日为:2012年9月17日,发明名称为:一种压力传感器和检测压力值的方法。 Patent Application [0001] The present invention is a divisional application, the original bill application number: 201210345912.3, filed: September 17, 2012, entitled: Method A pressure sensor and a pressure value detected.

技术领域 FIELD

[0002]本发明涉及传感器,尤其涉及一种压力传感器和检测压力值的方法。 [0002] The present invention relates to a sensor, in particular, it relates to a method for detecting a pressure sensor and a pressure value.

背景技术 Background technique

[0003]现有技术中,压力传感器应用于显示器的每一个像素下,主要通过压力敏感材料实现,通过将产生的压力转换为电能,从而实现对显示器的应用。 [0003] In the prior art, a pressure sensor is applied in each pixel of the display, implemented mainly by the pressure-sensitive material, it is converted to electrical energy generated by the pressure, enabling the application of the display.

[0004]但是,现有技术中通过压力敏感材料实现的压力传感器采集压力的精确度不高,并且获取压力的敏感度也不高。 [0004] However, the accuracy of the pressure sensor collected pressure achieved by the prior art pressure-sensitive material is not high, and acquires the pressure sensitivity is not high.

发明内容 SUMMARY

[0005]本发明的实施例提供一种压力传感器和检测压力值的方法,能够提高压力传感器压力值检测的精确度。 [0005] Embodiments of the present invention provides a method of detecting a pressure sensor and a pressure value can be improved accuracy of the pressure sensor value detected.

[0006]为达到上述目的,本发明的实施例采用如下技术方案: [0006] To achieve the above object, embodiments of the present invention adopts the following technical solutions:

[0007] —方面,本发明实施例提供一种压力传感器,包括:检测区域,所述检测区域包括:至少一个检测单元,所述检测单元包括至少一层电容片和与所述电容片相接的至少一层弹性透明绝缘材料。 [0007] - aspect, an embodiment of the present invention to provide a pressure sensor, comprising: a detection region, the detection region comprises: at least one detection unit, the detection unit comprises at least one layer in contact with the chip capacitors and chip capacitors at least one layer of resilient transparent insulating material.

[0008]另一方面,本发明实施例提供一种检测压力值的方法,包括: [0008] In another aspect, embodiments of the present invention provides a method for detecting a pressure value, comprising:

[0009]在检测到压力传感器的弹性透明绝缘材料形变时,获取所述弹性透明绝缘材料形变对应的电容值; [0009] When the pressure sensor detects the elastic deformation of a transparent insulating material, a capacitance value of the acquired elastic deformation corresponding to a transparent insulating material;

[0010]根据所述电容值得到与使所述弹性透明绝缘材料形变对应的压力值。 [0010] It is worth to a pressure value and the elastic deformation of a transparent insulating material according to the corresponding capacitance.

[0011]通过采用上述压力传感器和检测压力值的方法,利用至少一层与电容片相接的弹性绝缘材料,通过提高获取压力的敏感度,从而提高压力传感器压力值检测的精确度。 [0011] By using the method of the pressure sensor and the pressure value detected by the at least one layer of resilient insulating material sheet in contact with the capacitor, by increasing the sensitivity of the acquired pressure, thereby improving the accuracy of the pressure sensor value detected.

附图说明 BRIEF DESCRIPTION

[0012]为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术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发明的一些实施例,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他的附图。 [0012] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0013]图1为本发明实施例提供的一种压力传感器的结构示意图; [0013] FIG. 1 is a schematic structure of a pressure sensor according to an embodiment of the present invention;

[0014]图2为本发明实施例提供的另一种压力传感器的结构示意图; [0014] FIG. 2 is a schematic structural diagram of another pressure sensor according to an embodiment of the present invention;

[0015]图3为本发明实施例提供的另一种压力传感器的结构示意图; [0015] FIG. 3 is a schematic structural diagram of another pressure sensor according to an embodiment of the present invention;

[0016]图4为本发明实施例提供的一种检测压力值的方法示意图。 [0016] FIG. 4 is a schematic of a method for detecting a pressure value according to an embodiment of the present invention.

具体实施方式 Detailed ways

[0017]下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0017] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,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他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0018]本发明实施例提供一种压力传感器,包括:检测区域,该检测区域包括:至少一个检测单元,该检测单元包括至少一层电容片和与该电容片相接的至少一层弹性透明绝缘材料。 [0018] The present invention provides a embodiment of a pressure sensor, comprising: a detection region, the detection region comprises: at least one detection unit, the detection unit comprises at least one capacitor plate and the capacitor plate in contact with at least one elastic transparent Insulation Materials.

[0019]其中,采用该弹性透明绝缘材料不仅使用户能够方便的确定待操作的区域,方便用户对操作区域的定位,而且使得该压力传感器采集的压力和电容片产生的电容值更加精确,这样,用户通过电容值获得的压力值更加准确。 [0019] wherein, using the resilient transparent insulating material not only enables the user to easily determine the region to be operated, the user positioning of the operating area, and so that the pressure sensor to collect pressure and the capacitance of the capacitor sheet produced is more accurate, so the user value obtained by the pressure capacitance value is more accurate.

[0020] 可选地,当该检测区域包括至少两个检测单元,且该检测单元由一层电容片和与该一层电容片相接的一层弹性透明绝缘材料组成时,该弹性透明绝缘材料覆盖该电容片。 [0020] Alternatively, when the detection region comprises at least two detection units, and the detection unit contact the sheet and the layer of one capacitor plate and capacitor transparent insulating layer of elastic material, the elastic transparent insulating the the capacitance material of the cover sheet. [0021 ]进一步地,在该检测单元检测到该弹性透明绝缘材料形变时,该电容片的电容值与使该弹性透明绝缘材料形变对应的压力值相对应,具体地,通过查询预设的电容值与压力值的关系对照表可以获得该压力值。 When [0021] Further, the detecting means detects the elastic deformation of a transparent insulating material, a capacitance value of the capacitor plate and the resilient deformation of a transparent insulating material corresponding to the pressure value corresponding, in particular, by querying a preset capacitance relationship table value and the pressure value of the pressure value can be obtained.

[0022] 例如,如图1所示的压力传感器,包括两个检测单元(即检测单元A和检测单元B),该两个检测单元分别包括一层电容片和与该电容片相接的一层弹性透明绝缘材料。 [0022] For example, the pressure sensor shown in FIG. 1, comprises two detection units (i.e., the detection means and the detection unit A B), supplied two detection units each including one chip capacitors and the capacitance of a contact plate a transparent insulating layer of the elastic material. 用户通过手指等操作体对检测单元A中的检测区域中的弹性透明绝缘材料进行按压等操作时(此时对于该压力传感器相当于通过该操作体接地),产生的压力使得弹性透明绝缘材料发生形变,而该压力对应的压力值与该电容片在该弹性透明绝缘材料形变时的电容值相对应,因此,通过电容片的电容值即可获得该压力的压力值。 When the user presses the operation of the detection unit A and the like in the detection area of ​​a transparent insulating material by an elastic member such as a finger operation (this case corresponds to the pressure sensor is grounded through this operation), so that the elastic pressure generated transparent insulating material occurs deformation, and the capacitance value of the pressure corresponding to the pressure value and the capacitance of the elastomeric sheet at a transparent insulating material corresponding to the deformation, thus to obtain a pressure value of the pressure by the capacitance of the capacitor sheet.

[0023]优选地,为了提高该压力传感器对压力采集的能力和对压力检测的精确度,可以在该弹性透明绝缘材料上再增加一层电容片,在该检测单元检测到该弹性透明绝缘材料形变时,位于该弹性透明绝缘材料上层的电容片的电容值与位于该弹性透明绝缘材料下层的电容片的电容值的比值对应使该弹性透明绝缘材料形变对应的压力值,这样通过上下两层电容片对压力的采集能够减小得到的压力值与实际压力所对应的压力值间的误差。 [0023] Preferably, in order to improve the capacity of the pressure sensor and the pressure acquisition accuracy of the detected pressure, one can further increase the capacitance on the elastic sheet transparent insulating material, the detecting means detects the elastic transparent insulating material the ratio of the capacitance value of the capacitance of the capacitor chip capacitors when the sheet deformation, the transparent material of the upper insulating elastic and resilient transparent insulating material located in the lower layer corresponding to the resilient deformation of transparent insulating material, corresponding to a pressure value, so that the upper and lower layers by the error value of the capacitance between the sheet acquisition pressure can be reduced to obtain the actual pressure and the pressure value corresponding to the pressure.

[0024]其中,上述通过电容片的电容值获得该压力的压力值可以通过预设的压力值与电容值的关系对照表获得,本发明实施例对此不作限定。 [0024] wherein the capacitance value of the capacitor sheet obtained by pressure of the pressure value by a predetermined relationship between pressure and capacitance table values ​​obtained, embodiments of the present invention is not limited to this embodiment.

[0025] 可选地,当该检测区域包括至少两个检测单元,且该检测单元由至少两层电容片和与该至少两层电容片相接的至少两层弹性透明绝缘材料组成时,该检测单元由该电容片与该弹性透明绝缘材料相互间隔形成,其中,该检测单元的最下层为电容片。 [0025] Alternatively, when the detection region comprises at least two detection units, and the detection means at least two layers and at least two chip capacitors in contact with the at least two chip capacitors when the elastic transparent insulating material, which detecting means and the resilient transparent insulating material is formed spaced from each other by a plate of the capacitor, wherein the lowermost sheet as a capacitance detection unit.

[0026]采用至少两个检测单元能够提高该压力传感器采集压力时的分辨率,使得对压力值的检测更加精确,但是,由于采用多个检测单元会增加该压力传感器制作的工艺复杂度和制作成本,因此,在不增加制作工艺和制作成本的条件下,可以通过设置多个检测单元提高对压力值的检测的精确度。 [0026] The at least two detection units can improve the resolution when the pressure of the pressure sensor is acquired, so that the detection pressure value more accurate, however, since a plurality of detection units increases the process complexity and fabrication of the pressure sensor produced cost, therefore, without increasing the cost of the production process and production conditions, can improve the accuracy of the pressure detection value provided by a plurality of detection units.

[0027]进一步地,在该检测单元检测到该弹性透明绝缘材料形变时,位于该弹性透明绝缘材料上层的电容片的电容值与位于该弹性透明绝缘材料下层的电容片的电容值的比值对应使该弹性透明绝缘材料形变对应的压力值,从而减小得到的压力值与实际压力对应的压力值的误差。 The ratio of the capacitance value of the capacitor sheet when [0027] Further, the detecting means detects the elastic transparent insulating material deformation, the capacitance value of the capacitor plate of the transparent upper insulating material of the elastic located the resilient transparent insulating material of the lower layer corresponding to the transparent insulating elastic deformation of the material corresponding to a pressure value, so as to reduce the error resulting pressure corresponding to the pressure value and the actual pressure value.

[0028] 例如,如图2所示,包括三个检测单元,分别记为检测单元A、检测单元B和检测单元C,其中,该检测单元A、检测单元B和检测单元C分别包括两层电容片和与该两层电容片相接的一层弹性透明绝缘材料;其中,与该透明绝缘材料上层相接的电容片记为上层电容片,与该透明绝缘材料下层相接的电容片记为下层电容片,用户通过手指等操作体对检测区域中的检测单元B上层电容片进行按压等操作时,产生的压力使得弹性透明绝缘材料发生形变,同时,该压力通过该弹性透明绝缘材料作用于下层电容片上,此时,用户可以分别获知弹性透明绝缘材料形变时上层电容片对应的电容值和下层电容片对应的电容值,由于该压力的压力值与该上层电容片对应的电容值和下层电容片对应的电容值的比值对应,因此,通过两层电容片对应的电容值的比值即可获得该压 [0028] For example, as shown, comprises three detection units, the detection means are denoted by A, and a detection means detecting unit B C 2, wherein the detection unit A, unit B and a detection unit detecting each comprising two C chip capacitors and the two capacitors in contact with the elastic transparent insulating material substrate layer; wherein the upper layer in contact with the transparent insulation material sheet referred to as a capacitor upper capacitor plate, in contact with the lower capacitor plate transparent insulating material referred to when the lower layer capacitor sheet, the user presses and other operations on the detection area detecting unit B upper capacitor plate by an operation member such as a finger, the pressure generated by the elastic transparent insulating material deforms, while the pressure through the elastic transparent insulating material effect on the lower layer capacitor sheet, this time, the user can be informed separately capacitance values ​​and the capacitance values ​​of the lower layer chip capacitors corresponding elastic transparent insulating material deformation upper capacitor plate corresponding to the capacitance value of the pressure value of the pressure with the upper capacitor plate corresponding to and the ratio of the capacitance value corresponding to a corresponding lower capacitor plate, and therefore, the ratio by two chip capacitors corresponding to the capacitance value of the pressure can be obtained 力的压力值。 Pressure force value.

[0029]其中,上述通过两层电容片对应的电容值的比值获得该压力的压力值可以通过预设的电容比值和压力值的关系对照表获得,本发明实施例对此不作限定。 [0029] wherein said pressure is obtained by the ratio of the two chip capacitors corresponding to the capacitance value of a pressure value can be obtained by using a preset relationship between pressure and capacitance ratio table values, embodiments of the present invention is not limited to this embodiment.

[0030] 可选地,当该检测区域包括一个检测单元,且该检测单元由至少两层电容片和与该至少两层电容片相接的至少两层弹性透明绝缘材料组成时,该检测单元由该电容片与该弹性透明绝缘材料相互间隔形成,其中,该检测单元的最上层和最下层为电容片,且除该最下层电容片外的其余电容片分割为至少两个电容区域,这样,通过该至少两个电容区域使得该压力传感器提高对压力采集的敏感度,进而提升对压力检测的精确度。 [0030] Alternatively, when the detection region comprises a detection unit, and the detection means at least two layers and at least two chip capacitors in contact with the at least two chip capacitors when the elastic transparent insulating material, the detecting unit the uppermost and lowermost capacitive plate, and the remaining capacitors except the lowermost sheet capacitor plate is divided into at least two regions by the capacitance of the capacitor plate and the resilient transparent insulating material spaced from each other, wherein the detection unit, so that , through the at least two regions so that the capacitive pressure sensor to improve the sensitivity of the pressure collected, thereby improving the accuracy of the detected pressure.

[0031]在实际应用中,为了简化制作工艺并节约制作的成本,通常采用一个检测单元,同时,为了保证该压力传感器对压力的采集更加敏感,在该检测单元的上层电容片,通常会划分多个电容区域,从而提高上层电容片采集压力时的分辨率,这样,用户在通过手指等操作体对上层电容片进行操作时,通过该上层电容片的多个电容区域采集的压力数据的误差较小;另外,为了进一步提高该压力传感器对压力采集的能力和对压力检测的精确度,可以在原有的两层电容片(即上层电容片和下层电容片)结构的基础上,再增加一层电容片(即为中层电容片),相应地,增加一层弹性透明绝缘材料,即如图3所示的结构,优选地,在中层电容片上,也可以划分多个电容区域,这样,当压力通过弹性透明绝缘材料传递至中层电容片时,通过该上层电容片的多个电容区域 [0031] In practice, in order to simplify the production process and cost production, usually a detection unit, while, in order to ensure more sensitive to the pressure sensor to collect on the pressure, the upper capacitor plate of the detection means is usually divided a plurality of error capacitive area, thereby improving the resolution when the pressure acquired upper capacitor plate, so that, when the user operates the upper capacitor plate by an operation member such as a finger, by a plurality of regions of the upper layer capacitor capacitance plate pressure data collected small; in order to further enhance the ability of the pressure sensor and the pressure acquisition accuracy of the pressure detection can be based on (the upper sheet and the lower layer capacitor capacitance i.e. sheet) of the two-layer capacitor structure original sheet, the increase of a layer chip capacitors (chip capacitors is the middle layer), and accordingly, an additional layer of transparent insulating elastomeric material, i.e., the configuration shown in FIG. 3, preferably, in the middle plate capacitor, the capacitor may be divided into a plurality of regions, so that when pressure is transmitted through the elastic material to the transparent insulating middle layer capacitor sheet, by a plurality of capacitive area of ​​the upper capacitor plate 集的压力数据的误差较小,因此,通过该压力传感器能够减小得到的压力值与实际压力所对应的压力值间的误差,使得检测结果更加准确;当然,增加的电容片越多,最终的误差就越小,但考虑到实际应用中制作该压力传感器的工艺复杂度以及制作成本,应在不增加制作工艺和制作成本的条件下,尽可能大的减小得到的压力值与实际压力所对应的压力值间的误差。 Pressure error data set is small, and therefore, the pressure sensor can be reduced by the error between the obtained pressure value and the pressure value corresponding to the actual pressure, so that the detection result is more accurate; of course, the more increased chip capacitors, the final smaller error, but considering the practical application of the production process complexity and manufacturing cost of the pressure sensor, it should be without increasing production cost and production process conditions, as large as possible to reduce the pressure obtained with the actual pressure value error between the corresponding pressure values.

[0032]进一步地,在该检测单元检测到该弹性透明绝缘材料形变时,位于该弹性透明绝缘材料上层的电容片的电容值与位于该弹性透明绝缘材料下层的电容片的电容值的比值对应使该弹性透明绝缘材料形变对应的压力值,通过上述的对应关系能够减小得到的压力值与实际压力对应的压力值的误差。 The ratio of the capacitance value of the capacitor sheet when [0032] Further, the detecting means detects the elastic transparent insulating material deformation, the capacitance value of the capacitor plate of the transparent upper insulating material of the elastic located the resilient transparent insulating material of the lower layer corresponding to the elastic deformation of a transparent insulating material pressure value corresponding to the error by the above corresponding relationship can be reduced to obtain the actual pressure and the pressure value corresponding to the pressure value.

[0033] 例如,如图3所示,包括一个检测单元,该检测单元包括三层电容片和与该三层电容片相接的两层弹性透明绝缘材料(记为弹性透明绝缘材料A和弹性透明绝缘材料B);其中,与该弹性透明绝缘材料A上层相接的电容片为上层电容片,与该弹性透明绝缘材料B下层相接的电容片为下层电容片,与该弹性透明绝缘材料A和弹性透明绝缘材料B分别相接的电容片为中层电容片,由图中可以看出,上层电容片分别为四个电容区域,中层电容片分为两个电容区域,用户通过手指等操作体对检测区域中的检测单元的上层电容片进行按压等操作时,该上层电容片的四个电容区域采集用户按压操作产生的压力,该压力使得弹性透明绝缘材料A发生形变并作用于中层电容片上,中层电容片的两个电容区域采集到该压力,该压力继续使得该弹性透明绝缘材料B发生形变并作用于 [0033] For example, as shown, comprises a detecting unit, the detecting means comprises a three-layer chip capacitors and capacitor in contact with the three-layer sheet material of the elastic transparent insulating layers (referred to as an elastic transparent insulating elastic material 3 and A a transparent insulating material B); wherein the upper insulating transparent material a resilient contact with the upper capacitor plate of the capacitor plate, and the resilient transparent insulating material in contact with the lower layer B is lower capacitor plate capacitor sheet, the transparent elastomeric insulating material a and B are resilient transparent insulating material in contact with the capacitance of capacitor sheet is a middle sheet, it can be seen from the figure, upper capacitor plate are four capacitive region, the middle region of the capacitor film is divided into two capacitors, a user finger or the like by operating when the body of the upper layer capacitor sheet detection area detection unit operations such as pressing, four capacitive area of ​​the upper layer capacitor sheet collection user presses the operating pressure generated by the pressure so that the elastic transparent insulating material is deformed and applied to the a middle capacitance on-chip, chip capacitors middle two capacitive area of ​​the acquired pressure, the pressure continues so that the elastic transparent insulating material is deformed and applied to B 下层电容片上,下层电容片采集到该压力,由于上层电容片的电容值与下层电容片的电容值的比值减去上层电容片的电容值与中层电容片的电容值的比值与该压力的压力值对应,这样,通过上层电容片的电容值与下层电容片的电容值的比值减去上层电容片的电容值与中层电容片的电容值的比值即可得到该压力的压力值。 On the lower layer capacitor sheet, the lower layer capacitor sheet acquired the pressure, since the ratio of the capacitance value of the capacitance value of the upper capacitor plate and the lower capacitor plate minus the ratio of the capacitance value of the capacitance value of the middle capacitance sheet upper capacitor plate with the pressure of the pressure the ratio of the capacitance value corresponding to the value, so that, by subtracting the upper capacitor plate by a ratio of the capacitance value of the capacitance value of the upper capacitor plate and the lower capacitor plate of the capacitor the capacitance value of the middle sheet to obtain a pressure value of the pressure.

[0034]其中,上述通过上层电容片的电容值与下层电容片的电容值的比值减去上层电容片的电容值与中层电容片的电容值的比值得到该压力的压力值可以通过预设的关系对照表获得,本发明实施例对此不作限定。 [0034] wherein a ratio of the capacitance value of the upper capacitor plate by subtracting the ratio of the capacitance value of the capacitance value of the upper capacitor plate and the lower capacitor plate and middle capacitance value of the capacitance of the pressure plate obtained by a predetermined pressure value relationship table obtained, embodiments of the present invention is not limited to this embodiment.

[0035]另外,上述电容片划分的电容区域越多,则压力采集的精确度越高,但电容片划分电容区域的工艺复杂,因此电容片划分的电容区域应该在不增加制作成本的条件下实现最大的压力采集精确度。 The [0035] Further, the more the capacitance of the capacitor plate area is divided, the higher the accuracy of the acquired pressure, but the process is divided capacitance capacitor sheet complex area, the capacitance of the capacitive area divided sheet should not increase the manufacturing cost conditions for maximum pressure acquisition accuracy.

[0036]需要说明的是,上述至少两层弹性透明绝缘材料可以是不同的材料,本发明对此不作限定。 [0036] Incidentally, the above-mentioned at least two elastic transparent insulating material may be different materials, the present invention is not limited to this.

[0037]这样,采用上述的压力传感器,利用至少一层与电容片相接的弹性绝缘材料,通过提高获取压力的敏感度,从而提高压力传感器压力值检测的精确度。 [0037] Thus, the above-described pressure sensor, at least one layer of insulating material is an elastic sheet in contact with the capacitor, by increasing the sensitivity of the acquired pressure, thereby improving the accuracy of the pressure sensor value detected.

[0038]针对上述压力传感器,本发明实施例还提供一种检测压力值的方法,如图4所示,该实施例的执行主体为压力传感器,该方法包括: [0038] For the pressure sensor, embodiments of the present invention further provides a method for detecting a pressure value, shown in Figure 4, the body of this embodiment is performed as a pressure sensor, the method comprising:

[0039] S401、在检测到压力传感器的弹性透明绝缘材料形变时,压力传感器获取该弹性透明绝缘材料形变对应的电容值。 [0039] S401, when the pressure sensor detects the elastic deformation of a transparent insulating material, a capacitance value of the pressure sensor acquires an elastic deformation corresponding to a transparent insulating material.

[0040]其中,采用该弹性透明绝缘材料不仅使用户能够方便的确定待操作的区域,方便用户对操作区域的定位,而且使得该压力传感器采集的压力和电容片产生的电容值更加精确,这样,用户通过电容值获得的压力值更加准确。 [0040] wherein, using the resilient transparent insulating material not only enables the user to easily determine the region to be operated, the user positioning of the operating area, and so that the pressure sensor to collect pressure and the capacitance of the capacitor sheet produced is more accurate, so the user value obtained by the pressure capacitance value is more accurate.

[0041] S402、压力传感器根据该电容值得到与使该弹性透明绝缘材料形变对应的压力值。 [0041] S402, the pressure sensor and the pressure value is worth to the resilient deformation of a transparent insulating material according to the corresponding capacitor.

[0042]可选地,当该压力传感器的检测区域包括至少两个检测单元,且该检测单元由一层弹性透明绝缘材料覆盖一层电容片时,压力传感器通过该电容片的电容值得到与使该弹性透明绝缘材料形变对应的压力值。 [0042] Alternatively, when the detection area of ​​the pressure sensor comprises at least two detection units, and the detection unit is an insulating material covered with a layer of an elastic sheet of transparent capacitive pressure sensor is worth to a capacitance of the capacitor through the sheet the transparent insulating elastic deformation of the material corresponding to a pressure value.

[0043]具体地,参考上述对图1的描述,在此就不再赘述了。 [0043] In particular, with reference to the above description of Figure 1, this will not go into details.

[0044] 可选地,当该检测区域包括至少两个检测单元,且该检测单元由至少两层电容片与至少两层弹性透明绝缘材料相互间隔相接形成,且该检测单元的最下层为电容片时,该压力传感器通过该弹性透明绝缘材料上层的电容片的电容值与该弹性透明绝缘材料下层的电容片的电容值的比值得到与使该弹性透明绝缘材料形变对应的该压力值,从而减小得到的压力值与实际压力对应的压力值的误差。 [0044] Alternatively, when the detection region comprises at least two detection units, and the detection means is formed of at least two layers in contact with at least two chip capacitors elastic transparent insulating material spaced from each other, and the lowermost layer of the detection unit capacitor sheet, the pressure sensor is lower by a ratio of capacitance of a transparent insulating material of the elastic sheet with the capacitance value of the capacitance value of the upper layer of a transparent insulating material of the elastic sheet obtained capacitance value of the pressure that the elastic deformation corresponding to a transparent insulating material, error value and the actual pressure corresponding to the pressure thereby reducing pressure value obtained.

[0045]采用至少两个检测单元能够提高该压力传感器采集压力时的分辨率,使得对压力值的检测更加精确,但是,由于采用多个检测单元会增加该压力传感器制作的工艺复杂度和制作成本,因此,在不增加制作工艺和制作成本的条件下,可以通过设置多个检测单元提高对压力值的检测的精确度。 [0045] The at least two detection units can improve the resolution when the pressure of the pressure sensor is acquired, so that the detection pressure value more accurate, however, since a plurality of detection units increases the process complexity and fabrication of the pressure sensor produced cost, therefore, without increasing the cost of the production process and production conditions, can improve the accuracy of the pressure detection value provided by a plurality of detection units.

[0046] 具体地,参考上述对图2的描述,在此就不再赘述了。 [0046] In particular, with reference to the above description of FIG. 2, this will not go into details.

[0047] 可选地,当该检测区域包括一个检测单元,且该检测单元由至少两层电容片和与该至少两层电容片相接的至少两层弹性透明绝缘材料组成,且该检测单元由该电容片与该弹性透明绝缘材料相互间隔形成,且该检测单元的最上层和最下层为电容片,并且除该最下层电容片外的其余电容片分割为至少两个电容区域时,该压力传感器通过该弹性透明绝缘材料上层的电容片的电容值与该弹性透明绝缘材料下层的电容片的电容值的比值得到与使该弹性透明绝缘材料形变对应的该压力值,通过上述的对应关系能够减小得到的压力值与实际压力对应的压力值的误差。 [0047] Alternatively, when the detecting means comprises a detection region of the detection unit and the detection unit consisting of at least two capacitors and at least two contact sheets with at least two chip capacitors elastic transparent insulating material, and when the capacitance of the resilient sheet with a transparent insulating material spaced from each other, and the detection unit uppermost and lowermost capacitive plate, and the remaining capacitors except the lowermost sheet capacitor plate is divided into at least two capacitive region, the the ratio of the capacitance value of the capacitance plate pressure sensor by the elastic transparent capacitance value of a transparent insulating material underlying the elastic capacitor sheet insulating material upper layer obtained with the resilient transparent insulating material of the pressure deformation corresponding to the above-described correspondence relation the resulting error can be reduced and the actual pressure value of the pressure corresponding to the pressure values.

[0048]在实际应用中,为了简化制作工艺并节约制作的成本,通常采用一个检测单元,同时,为了保证该压力传感器对压力的采集更加敏感,在该检测单元的上层电容片,通常会划分多个电容区域,从而提高上层电容片采集压力时的分辨率,这样,用户在通过手指等操作体对上层电容片进行操作时,通过该上层电容片的多个电容区域采集的压力数据的误差较小;另外,为了进一步提高该压力传感器对压力采集的能力和对压力检测的精确度,可以在原有的两层电容片(即上层电容片和下层电容片)结构的基础上,再增加一层电容片(即为中层电容片),相应地,增加一层弹性透明绝缘材料,即如图3所示的结构,优选地,在中层电容片上,也可以划分多个电容区域,这样,当压力通过弹性透明绝缘材料传递至中层电容片时,通过该上层电容片的多个电容区域 [0048] In practice, in order to simplify the production process and cost production, usually a detection unit, while, in order to ensure more sensitive to the pressure sensor to collect on the pressure, the upper capacitor plate of the detection means is usually divided a plurality of error capacitive area, thereby improving the resolution when the pressure acquired upper capacitor plate, so that, when the user operates the upper capacitor plate by an operation member such as a finger, by a plurality of regions of the upper layer capacitor capacitance plate pressure data collected small; in order to further enhance the ability of the pressure sensor and the pressure acquisition accuracy of the pressure detection can be based on (the upper sheet and the lower layer capacitor capacitance i.e. sheet) of the two-layer capacitor structure original sheet, the increase of a layer chip capacitors (chip capacitors is the middle layer), and accordingly, an additional layer of transparent insulating elastomeric material, i.e., the configuration shown in FIG. 3, preferably, in the middle plate capacitor, the capacitor may be divided into a plurality of regions, so that when pressure is transmitted through the elastic material to the transparent insulating middle layer capacitor sheet, by a plurality of capacitive area of ​​the upper capacitor plate 集的压力数据的误差较小,因此,通过该压力传感器能够减小得到的压力值与实际压力所对应的压力值间的误差,使得检测结果更加准确;当然,增加的电容片越多,最终的误差就越小,但考虑到实际应用中制作该压力传感器的工艺复杂度以及制作成本,应在不增加制作工艺和制作成本的条件下,尽可能大的减小得到的压力值与实际压力所对应的压力值间的误差。 Pressure error data set is small, and therefore, the pressure sensor can be reduced by the error between the obtained pressure value and the pressure value corresponding to the actual pressure, so that the detection result is more accurate; of course, the more increased chip capacitors, the final smaller error, but considering the practical application of the production process complexity and manufacturing cost of the pressure sensor, it should be without increasing production cost and production process conditions, as large as possible to reduce the pressure obtained with the actual pressure value error between the corresponding pressure values.

[0049]具体地,参考上述对图3的描述,在此就不再赘述了。 [0049] In particular, with reference to the above description of FIG. 3, this will not go into details.

[0050]需要说明的是,上述至少两层弹性透明绝缘材料可以是不同的材料,本发明对此不作限定。 [0050] Incidentally, the above-mentioned at least two elastic transparent insulating material may be different materials, the present invention is not limited to this.

[0051]这样,采用上述检测压力值的方法,利用至少一层与电容片相接的弹性绝缘材料,通过提高获取压力的敏感度,从而提高压力传感器压力值检测的精确度。 [0051] Thus, the method using the detected pressure value, using a resilient insulating material at least one sheet in contact with the capacitor, by increasing the sensitivity of the acquired pressure, thereby improving the accuracy of the pressure sensor value detected.

[0052]以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。 [0052] The above are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the technical scope of the present invention is disclosed, variations may readily occur or Alternatively, it shall fall within the protection scope of the present invention. 因此,本发明的保护范围应以所述权利要求的保护范围为准。 Accordingly, the scope of the present invention should be defined by the scope of the claims.

Claims (6)

1.一种压力传感器,其特征在于,包括:检测区域,所述检测区域包括:至少一个检测单元,所述检测单元包括至少两层电容片和与所述至少两层电容片相接的至少一层弹性透明绝缘材料。 1. A pressure sensor comprising: a detection region, the detection region comprises: at least one detection unit, the detection unit comprises at least two chip capacitors and the capacitance of the at least two sheets in contact at least a layer of resilient transparent insulating material.
2.根据权利要求1所述的压力传感器,其特征在于,包括:当所述检测区域包括至少两个检测单元,且所述检测单元由至少两层电容片和与所述至少两层电容片相接的至少两层弹性透明绝缘材料组成时,所述检测单元由所述电容片与所述弹性透明绝缘材料相互间隔形成,其中,所述检测单元的最下层为电容片。 2. Pressure sensor according to claim 1, characterized by comprising: when said detection region comprises at least two detection means, detecting means and said at least two chip capacitors and at least two layers and the sheet capacitance when at least two resilient contact transparent insulating material, the detection means spaced from each other a transparent insulating material is formed by said capacitor and said elastic sheet, wherein said sheet detecting lowermost capacitive units.
3.根据权利要求1所述的压力传感器,其特征在于,包括:当所述检测区域包括一个检测单元,且所述检测单元由至少两层电容片和与所述至少两层电容片相接的至少两层弹性透明绝缘材料组成时,所述检测单元由所述电容片与所述弹性透明绝缘材料相互间隔形成,其中,所述检测单元的最上层和最下层为电容片,且除所述最下层电容片外的其余电容片分割为至少两个电容区域。 3. Pressure sensor according to claim 1, characterized by comprising: when said detection region comprises a detection means, and said detecting means at least two layers in contact with the capacitor plate and at least two chip capacitors at least two layers of an elastic transparent insulating material, the detection means spaced from each other a transparent insulating material is formed by said capacitor and said elastic sheet, wherein said uppermost and lowermost detecting means is a capacitive plate, and in addition to the said outer sheet remaining capacitance capacitor lowermost sheet is divided into at least two capacitive regions.
4.根据权利要求1-3任一项所述的压力传感器,其特征在于,在所述检测单元检测到所述弹性透明绝缘材料形变时,位于所述弹性透明绝缘材料上层的电容片的电容值与位于所述弹性透明绝缘材料下层的电容片的电容值的比值对应使所述弹性透明绝缘材料形变对应的压力值。 4. The capacitive pressure sensor as claimed in claim any one of claims 1-3, wherein the detecting unit detects the elastic deformation of a transparent insulating material located between the upper transparent insulating elastic sheet material capacitance value of the capacitance value of said elastic transparent insulating material located in the lower layer corresponding to the ratio of the capacitance of the sheet the elastic deformation of a transparent insulating material corresponding to a pressure value.
5.根据权利要求2或3所述的压力传感器,其特征在于,所述至少两层弹性透明绝缘材料不同。 The pressure sensor of claim 2 or claim 3, wherein said at least two different resilient transparent insulating material.
6.—种检测压力值的方法,其特征在于,应用于权利要求1至权利要求5提供的任意一种压力传感器中,所述方法包括: 在检测到压力传感器的弹性透明绝缘材料形变时,获取所述弹性透明绝缘材料上层的电容片的电容值与所述弹性透明绝缘材料下层的电容片的电容值的比值; 根据所述比值得到与使所述弹性透明绝缘材料形变对应的压力值。 6.- method detected pressure value, characterized in that, to claim 1 is applied to any one of claims claim 5 to provide a pressure sensor, the method comprising: a pressure sensor detects the elastic deformation when a transparent insulating material, the ratio of the capacitance value of the capacitance value acquisition elastic transparent insulating material and an upper layer capacitance of the elastomeric sheet material is transparent insulating sheet of the lower layer capacitor; obtained according to the ratio of the elastic deformation of a transparent insulating material corresponding to a pressure value.
CN201610232766.1A 2012-09-17 2012-09-17 Pressure sensor and method for detecting pressure value CN105806516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610232766.1A CN105806516A (en) 2012-09-17 2012-09-17 Pressure sensor and method for detecting pressure value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610232766.1A CN105806516A (en) 2012-09-17 2012-09-17 Pressure sensor and method for detecting pressure value

Publications (1)

Publication Number Publication Date
CN105806516A true CN105806516A (en) 2016-07-27

Family

ID=56459258

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610232766.1A CN105806516A (en) 2012-09-17 2012-09-17 Pressure sensor and method for detecting pressure value

Country Status (1)

Country Link
CN (1) CN105806516A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020194921A1 (en) * 2001-06-23 2002-12-26 Wolfgang Scholz Capacitive differential pressure sensor
CN101421692A (en) * 2006-02-10 2009-04-29 美利肯公司 Flexible capacitive sensor
CN101421590A (en) * 2006-02-10 2009-04-29 美利肯公司 Printed capacitive sensor
CN102053750A (en) * 2009-11-06 2011-05-11 索尼公司 Sensing means and the electronic device
CN102165297A (en) * 2008-11-21 2011-08-24 高桥诚 Capacitive dynamic quantity sensor element and dynamic quantity sensor
CN102667695A (en) * 2009-12-22 2012-09-12 日本写真印刷株式会社 Touch panel and portable device using same
CN103674350B (en) * 2012-09-17 2016-06-01 联想(北京)有限公司 A pressure sensor and a method for detecting a pressure value

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020194921A1 (en) * 2001-06-23 2002-12-26 Wolfgang Scholz Capacitive differential pressure sensor
CN101421692A (en) * 2006-02-10 2009-04-29 美利肯公司 Flexible capacitive sensor
CN101421590A (en) * 2006-02-10 2009-04-29 美利肯公司 Printed capacitive sensor
CN102165297A (en) * 2008-11-21 2011-08-24 高桥诚 Capacitive dynamic quantity sensor element and dynamic quantity sensor
CN102053750A (en) * 2009-11-06 2011-05-11 索尼公司 Sensing means and the electronic device
CN102667695A (en) * 2009-12-22 2012-09-12 日本写真印刷株式会社 Touch panel and portable device using same
CN103674350B (en) * 2012-09-17 2016-06-01 联想(北京)有限公司 A pressure sensor and a method for detecting a pressure value

Similar Documents

Publication Publication Date Title
KR101290735B1 (en) Pressure detectable touch device
US9557849B2 (en) Touch panel and input recognition device using the touch panel
US9417725B1 (en) Touch panel having press detection function
CN201622554U (en) Capacitance touch sensor, touch detection device, and touch control terminal
WO2011125388A1 (en) Transparent piezoelectric sheet, and transparent piezoelectric sheet with frame, touch panel and electronic device containing same
JP5540797B2 (en) Sensor device and a display device
CN102012772B (en) Capacitive control panel
WO2015051644A1 (en) Fingerprint identification element, display screen and display device
JP2011501307A (en) Single-touch or multi-touch type of the touch screen or touch pad with a pressure sensor array, and the pressure sensor manufacturing method of
US9471161B2 (en) Touch screen panel
CN107505067A (en) Sensor device, input device, and electronic apparatus
CN102541372A (en) Capacitive multi-touch screen and detecting method
CN102446043A (en) Sensor apparatus and information processing apparatus
CN102200866B (en) A mutual capacitance touch sensing apparatus and detection method, a touch display device
JP3152062U (en) Integrated structure of the capacitive touch panel and a liquid crystal display panel
EP2738596B1 (en) Touch-control liquid crystal display device
JP6024903B2 (en) Input device, an input control method, a program, and an electronic device
CN103294321A (en) Touch control display device
CN103823592B (en) A display device with a mechanical sensing function
KR101762523B1 (en) Touch panel, touch positioning method thereof and display device
CN102236467A (en) A touch panel and a display device
US8134541B2 (en) Capacitive touch panel
CN1996221B (en) Display device with touch sensitive surface
CN105117055B (en) Three-dimensional touch pressure signal input means and methods of use and multi-touch panel
US10318038B2 (en) Pressure-sensitive touch panel

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination