WO2019007051A1 - 一种显示面板、显示装置及显示盲文的方法 - Google Patents

一种显示面板、显示装置及显示盲文的方法 Download PDF

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Publication number
WO2019007051A1
WO2019007051A1 PCT/CN2018/075030 CN2018075030W WO2019007051A1 WO 2019007051 A1 WO2019007051 A1 WO 2019007051A1 CN 2018075030 W CN2018075030 W CN 2018075030W WO 2019007051 A1 WO2019007051 A1 WO 2019007051A1
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WO
WIPO (PCT)
Prior art keywords
display panel
display
information
braille
electrode
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Application number
PCT/CN2018/075030
Other languages
English (en)
French (fr)
Inventor
李昌峰
王海生
刘英明
丁小梁
许睿
王鹏鹏
刘伟
郭玉珍
卢鹏程
贾亚楠
顾品超
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/080,618 priority Critical patent/US11189194B2/en
Publication of WO2019007051A1 publication Critical patent/WO2019007051A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
    • G09B21/004—Details of particular tactile cells, e.g. electro-mechanical or mechanical layout
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/007—Teaching or communicating with blind persons using both tactile and audible presentation of the information
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0275—Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/14—Solving problems related to the presentation of information to be displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, and a method of displaying Braille.
  • blind people can only obtain outside information through sound and touch. Therefore, when a blind person is reading, he or she usually obtains the text of the information by touching the Braille by hand. Traditionally, blind people are touched to Braille by making bumps on paper. However, in this way, papers with raised points can no longer be reused, resulting in serious waste of resources.
  • a Braille display device for displaying Braille came into being.
  • a mechanical control method is usually employed, for example, a Braille method is used to display Braille.
  • this control method has a complicated structure, a complicated process, and it is difficult to achieve fine control of the Braille point.
  • Embodiments of the present disclosure provide a display panel, a display device, and a method of displaying Braille.
  • a first aspect of the present disclosure provides a display panel including: a plurality of scan lines; a plurality of data lines; and a plurality of display circuits disposed at intersections of the plurality of scan lines and the plurality of data lines;
  • the display circuit includes: a switch configured to be turned on or off according to a scan signal from a scan line; and a dot unit coupled to the switch, wherein the dot unit includes: a substrate, An electrode disposed on the substrate, a heat sensitive layer disposed on the electrode, and a dot key disposed on the heat sensitive layer; wherein the electrode is coupled to the switch and configured To apply a data signal from the data line when the switch is turned on; the heat sensitive layer is configured to be heated by the electrode such that the point key is raised.
  • the heat sensitive layer is made of a heat sensitive material.
  • the point unit further includes: a protective layer disposed between the heat sensitive layer and the point key.
  • the protective layer is made of a resin material.
  • the plurality of display circuits are arranged in a matrix.
  • the switch includes a thin film transistor, wherein a control electrode of the thin film transistor is coupled to a scan line, a first pole is coupled to the data line, and a second pole is coupled to the electrode.
  • a second aspect of the present disclosure provides a display device comprising: a display panel according to the first aspect of the present disclosure; an information recognition unit configured to recognize input information to obtain text information; and a control unit Coupling with the information recognition unit and the display panel, and configured to convert the text information into Braille information, generate a driving signal for the display panel according to the Braille information, and display the display The panel provides the drive signal; wherein the display panel is configured to display the Braille information based on the drive signal.
  • the control unit includes: a conversion module coupled to the information recognition unit, and configured to convert the text information into Braille information, and determine, according to the Braille information a display circuit in which a dot key is to be raised in the display panel, and generates a first control command and a second control command; a timing control circuit coupled to the conversion module and the display panel, and configured to be configured according to The first control instruction generates a scan signal to provide a scan line to the display panel; and a data drive circuit coupled to the conversion module and the display panel and configured to be according to the second control An instruction to generate a data signal to provide to the data line of the display panel.
  • the information recognition unit includes an image recognition device and/or a voice recognition device.
  • a third aspect of the present disclosure provides a method for displaying Braille in a display device according to the second aspect of the present disclosure.
  • the method includes: identifying input information to obtain text information; converting the text information into Braille information; generating a display panel driving signal for use in the display device according to the Braille information; Driving a signal to drive the display panel to display the Braille information.
  • generating the driving signal according to the Braille information includes: determining, according to the Braille information, a display circuit in which the point key in the display panel is to be raised; generating the first according to the determined display circuit a control command and a second control command; respectively, generating scan signals and data signals for the display panel according to the first control command and the second control command.
  • the input information includes at least one of image information and voice information.
  • FIG. 1 is a schematic structural view of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a dot unit in a display panel according to an embodiment of the present disclosure
  • FIG. 3 is another schematic structural diagram of a dot unit in a display panel according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural view of a display panel according to another embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a display device according to another embodiment of the present disclosure.
  • FIG. 7 is a flow chart of a method of displaying Braille in accordance with an embodiment of the present disclosure.
  • Figure 8 is a flow diagram of a process for generating a drive signal in the embodiment of Figure 7.
  • FIG. 1 is a schematic structural view of a display panel according to an embodiment of the present disclosure.
  • the display panel includes a plurality of scanning lines GATE, a plurality of data lines DATA, and a plurality of display circuits 2 disposed at intersections of the plurality of scanning lines GATE and the plurality of data lines DATA.
  • the display circuit 2 includes a switch 3 and a point unit 4 coupled to the switch 3. The switch 3 can be turned on or off according to a scan signal from the scan line GATE.
  • FIG. 2 is a schematic diagram showing an exemplary structure of a pointing unit 4 in the display panel shown in FIG. 1.
  • the dot unit 4 includes a substrate 1, an electrode 5 provided on the substrate 1, a heat sensitive layer 6 provided on the electrode 5, and a dot key 7 provided on the heat sensitive layer 6.
  • the electrode 5 is coupled to the switch 3, and a data signal from the data line DATA can be applied when the switch 3 is turned on.
  • the electrode 5 is applied with a data signal from the data line DATA, the electrode 5 is energized, and the heat sensitive layer 6 provided on the electrode 5 is heated.
  • the texture of the heat sensitive layer 6 is soft, and the position key 7 provided on the heat sensitive layer 6 is sunken by heat due to its own gravity.
  • the texture of the heat sensitive layer 6 is softened and hardened, which causes the position key 7 to be lifted up, so that the position key 7 is convex.
  • the projection of the position key 7 at different positions can be made by the applied scanning signal and data signal.
  • the display panel provided by the embodiment of the present disclosure may be a display panel displaying blind characters.
  • the six display circuits 2 shown by the dashed boxes in Fig. 1 correspond to one blind text.
  • the protrusion of the position key 7 in the display circuit 2 at different positions can be made to display the display panel with different blind characters. Therefore, with the display panel provided in this embodiment, the point keys 7 can be independently controlled, so that the control is finer, and the Braille can be displayed more accurately.
  • the point keys 7 can be independently controlled, the area occupied by the point keys 7 can be reduced within a reasonable range, thereby reducing the area occupied by the display circuit 2. Area. Since the six display circuits 2 correspond to one blind text, it is possible to cause the display panel to display more blind characters in a unit area. On the other hand, since the area occupied by a single blind text is reduced, the size of the display panel can be reduced to a certain extent, thereby facilitating the carrying and use of the blind person.
  • each point unit 4 can be regarded as one pixel unit, and the control of the point keys 7 included in each point unit 4 can be accurate to the pixel micrometer level.
  • the heat sensitive layer 6 may be formed on the surface of the electrode 5 facing away from the substrate 1 by a coating process.
  • the heat sensitive layer 6 can be made of a heat sensitive material such as a gel. Based on the characteristics of the heat-sensitive material, when the heat-sensitive material is not heated, the texture of the heat-sensitive material is soft. When the heat-sensitive material is heated to a certain temperature threshold, the texture of the heat-sensitive material is softened and hardened. It can be understood that for different heat sensitive materials, the respective temperature thresholds are different.
  • the time required for the texture of the heat sensitive material to be softened and hardened is different, that is, the data signal is applied from the electrode 5.
  • the time to the control point key 7 is different.
  • the time required to apply a data signal from the electrode 5 to the control point key 7 may be one frame time.
  • the point unit 4 further includes protection.
  • Layer 8 A protective layer 8 may be disposed between the heat sensitive layer 6 and the point key 7 for protecting the heat sensitive layer 6.
  • the protective layer 8 may be specifically made of a resin material.
  • the dot units 4 included in the display circuit 2 are arranged in a matrix. Since, in the usual case, a standard blind text is composed of a dot matrix of 2 x 3 dots, the projections of the dot keys 7 at different positions are passed so that the display circuits 2 represent different blind characters. This enhances the applicability of the display panel, making it easier for blind people to touch and recognize Braille.
  • the switch 3 included in each display circuit 2 may be a thin film transistor. It should be understood that other structures may be used, which are not limited herein.
  • the gate electrode 31 of the thin film transistor is coupled to the scan line GATE, the first pole 32 is coupled to the data line DATA, and the second pole 33 is coupled to the electrode 5 of the dot unit 4.
  • a scan signal can be supplied to the gate electrode of the thin film transistor through the scan line GATE to control the turn-on of the thin film transistor.
  • a data signal is supplied to the first electrode of the thin film transistor through the data line DATA, and the data signal is transmitted to the electrode 5 through the second electrode of the thin film transistor, so that the electrode 5 is energized.
  • the heat sensitive layer 6 corresponding to the electrode 5 is initially heated, and when heated to a certain temperature, the texture of the heat sensitive layer 6 is hardened, so that the position key 7 located above the heat sensitive layer 6 is convex.
  • FIG. 5 is a schematic structural view of a display device according to an embodiment of the present disclosure. As shown in FIG. 5, the display device includes a display panel, an information recognition unit 9, and a control unit 10 as shown in FIG.
  • the information recognition unit 9 can recognize the input information to obtain text information.
  • the input information may include image information and/or voice information.
  • image information such as road information may be acquired by a camera in a display device, and the voice information may be acquired by a microphone (eg, a microphone) in the display device.
  • the acquired image information may be provided to the image recognition device for identification, and the acquired voice information may be provided to the voice recognition device for recognition to obtain text information.
  • the control unit 10 is coupled to the information recognition unit 9 and the display panel, and can convert the text information into Braille information, and generate a driving signal for the display panel according to the Braille information, and provide a driving signal to the display panel.
  • the display panel can display Braille information according to the driving signal.
  • control unit 10 includes a conversion module 11, a timing control circuit 12, and a data driving circuit 13.
  • the conversion module 11 is coupled to the information recognition unit 9, the timing control circuit 12, and the data drive circuit 13, respectively.
  • the conversion module 11 can convert the recognized text information into Braille information, and according to the Braille information, determine the display circuit 2 in which the point key 7 is to be raised in the display panel, and generate the first control instruction and the second control instruction.
  • the first control command is related to the timing of the display circuit 2
  • the second control command is related to the data of the display circuit 2.
  • the timing control circuit 12 is coupled to the conversion module 11 and the display panel, and can generate a scan signal to provide a scan line GATE to the display panel according to the first control instruction.
  • the timing control circuit 12 may be coupled to the control electrode of the switch 3 included in the display circuit 2 through the scan line GATE.
  • the control electrode can control the opening or closing of the switch 3 according to the scanning signal.
  • the data driving circuit 13 is coupled to the conversion module 11 and the display panel, and can generate a data signal to provide the data line DATA to the display panel according to the second control instruction.
  • the data driving circuit 13 may be coupled to the first electrode of the switch 3 included in the display circuit 2 through the data line DATA.
  • the switch 3 When the switch 3 is turned on, the data signal is transmitted to the corresponding electrode 5 via the second pole of the switch 3, so that the electrode 5 is energized, so that the heat sensitive layer 6 disposed on the electrode 5 is heated.
  • the timing control circuit 12 when the switch 3 included in the display circuit 2 is a thin film transistor, as shown in FIG. 6, the timing control circuit 12 is coupled to the gate electrode 31 of the thin film transistor through the scanning line GATE.
  • the timing control circuit 12 supplies a scan signal to the gate electrode of the thin film transistor through the scan line GATE to control the thin film transistor to be turned on.
  • the timing control circuit 12 may control the thin film transistors included in the display circuit 2 to be turned on line by line.
  • the data driving circuit 13 is coupled to the first electrode of the thin film transistor.
  • the data driving circuit 13 supplies a data signal to the first electrode of the thin film transistor through the data line DATA, and the data signal is transmitted to the corresponding electrode 5 through the second electrode of the thin film transistor, so that the electrode 5 is energized.
  • the heat sensitive layer 6 corresponding to the electrode 5 is initially heated, and when heated to a certain temperature, the texture of the heat sensitive layer 6 is hardened, so that the position key 7 located above the heat sensitive layer 6 is convex.
  • the point key 7 in the point unit 4 of the first row and the first column is controlled to be raised, and the point key 7 in the point unit 4 of the second row and the second column is controlled.
  • the working principle of the control unit 10 is specifically described:
  • the timing control circuit 12 supplies a scan signal to the gate electrode of the first row of thin film transistors through the scan line GATE1 to control the opening of the first row of thin film transistors; and the data driving circuit 13 supplies the first poles of the first column of thin film transistors through the data line DATA1.
  • the data signal is transmitted through the second pole of the thin film transistor to the electrode 5 included in the dot unit 4 of the first row of the first row, so that the electrode 5 is energized.
  • the heat sensitive layer 6 corresponding to the electrode 5 is initially heated, and when heated to a certain temperature, the texture of the heat sensitive layer 6 is hardened, so that the position key 7 located above the heat sensitive layer 6 is convex. That is, the position key 7 in the point unit 4 of the first row of the first row is controlled to be convex.
  • the timing control circuit 12 supplies a scan signal to the gate electrode of the second row thin film transistor through the scan line GATE2 to control the second row of thin film transistors to be turned on;
  • the data driving circuit 13 supplies the first pole of the second column thin film transistor through the data line DATA2.
  • the data signal is transmitted through the second pole of the thin film transistor to the electrode 5 included in the point unit 4 of the second row and the second column, so that the electrode 5 is energized.
  • the heat sensitive layer 6 corresponding to the electrode 5 is initially heated, and when heated to a certain temperature, the texture of the heat sensitive layer 6 is hardened, so that the position key 7 located above the heat sensitive layer 6 is convex. That is, the position key 7 in the point unit 4 of the second row and the second column is controlled to be raised.
  • the display device since the display device can independently control the respective point keys 7, the control is made finer, and the Braille can be displayed more accurately.
  • the display device since the display device further includes an information identifying unit 9 that recognizes input information to obtain text information, and the control unit 10 can convert the text information into Braille information, thereby determining that the point key in the display panel is to be determined according to the Braille information.
  • a raised display circuit 2. Therefore, the display device provided in this embodiment can also convert the acquired external input information into Braille information, so that the blind person can better acquire external information.
  • the area occupied by the point keys 7 can be reduced within a reasonable range.
  • the display device can display more blind characters in a unit area, and on the other hand, the size of the display device can be reduced, thereby facilitating the carrying and use of the blind person.
  • the input information is identified to obtain text information.
  • the input information may include image information and/or voice information.
  • image information (such as road information) may be acquired by a camera, and the voice information may be acquired by a microphone such as a microphone. The acquired image information and/or voice information may be identified to obtain text information.
  • step S2 the text information is converted into Braille information.
  • a drive signal is generated based on the Braille information.
  • the drive signal may include a scan signal and a data signal.
  • FIG. 8 illustrates a flow chart of a process of generating a drive signal.
  • step S31 based on the Braille information, a display circuit in which the dot key in the display panel is to be raised is determined.
  • step S32 a first control instruction and a second control instruction are generated according to the determined display circuit.
  • scan signals and data signals for the display panel are respectively generated according to the first control command and the second control command.
  • step S4 the display panel in the display display device is driven to display the Braille information based on the drive signal.
  • the switch included in the display circuit of the display device is a thin film transistor
  • a scan signal is supplied to a gate electrode of the corresponding thin film transistor through a scan line to control opening of the corresponding thin film transistor.
  • a data signal for supplying power to the electrode is provided to the first pole of the corresponding thin film transistor through the data line, and the data signal is transmitted to the corresponding electrode through the second pole of the thin film transistor, so that the heat sensitive layer corresponding to the electrode is heated It is hardened to control the corresponding point key bumps.
  • each point key can be independently controlled, so that the control is more fine, and the Braille can be displayed more accurately.
  • the acquired external input information can also be converted into Braille information, so that the blind person can better obtain external information.

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Abstract

本公开的实施例提供了一种显示面板、显示装置及显示盲文的方法。根据实施例的显示面板包括多条扫描线，多条数据线，以及设置在多条扫描线和多条数据线的交叉处的多个显示电路。显示电路包括：开关，其被配置为根据来自扫描线的扫描信号开启或关断；以及与开关耦接的点位单元。点位单元包括衬底、在衬底上设置的电极、在电极上设置的热敏层、以及在热敏层上设置的点位键。电极与开关耦接，并被配置为在开关被开启时，被施加来自数据线的数据信号。热敏层被配置为由电极加热，以使得点位键凸起。

Description

一种显示面板、显示装置及显示盲文的方法
本申请要求于2017年7月3日递交的中国专利申请第201710534760.4号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示面板、显示装置及显示盲文的方法。
背景技术
盲人由于其固有的视觉缺陷，只能通过声音和触觉获取外界信息。因此，盲人在进行阅读时，通常是通过用手触摸盲文来获得信息的文字。传统技术上，一般采用在纸张上制作凸起点位的方式使盲人触摸到盲文，但采用这种方式，制作凸起点位的纸张将无法再重复利用，造成了严重的资源浪费。
在这种情况下，用来显示盲文的盲文显示装置就应运而生。在现有的盲文显示装置中，通常采用机械控制方式，例如采用压电片方式显示盲文。但是，这种控制方式结构复杂，工艺繁琐，且不易实现对盲文点位的精细控制。
发明内容
本公开的实施例提供了一种显示面板、显示装置及显示盲文的方法。
本公开的第一方面提供了一种显示面板，包括：多条扫描线；多条数据线；以及设置在所述多条扫描线和所述多条数据线的交叉处的多个显示电路；其中，所述显示电路包括：开关，其被配置为根据来自扫描线的扫描信号开启或关断；以及与所述开关耦接的点位单元，其中，所述点位单 元包括：衬底，在所述衬底上设置的电极，在所述电极上设置的热敏层，以及在所述热敏层上设置的点位键；其中，所述电极与所述开关耦接，并被配置为在所述开关被开启时，被施加来自数据线的数据信号；所述热敏层被配置为由所述电极加热，以使得所述点位键凸起。
在本公开的实施例中，所述热敏层由热敏材料制成。
在本公开的实施例中，所述点位单元还包括：设置在所述热敏层与所述点位键之间的保护层。
在本公开的实施例中，所述保护层由树脂材料制成。
在本公开的实施例中，所述多个显示电路被排列成矩阵状。
在本公开的实施例中，所述开关包括薄膜晶体管，其中，所述薄膜晶体管的控制极与扫描线耦接，第一极与数据线耦接，第二极与所述电极耦接。
本公开的第二方面提供了一种显示装置，包括：根据本公开的第一方面的显示面板；信息识别单元，其被配置为对输入信息进行识别，以获得文本信息；以及控制单元，其与所述信息识别单元和所述显示面板耦接，并被配置为将所述文本信息转换成盲文信息，根据所述盲文信息，生成用于所述显示面板的驱动信号，以及向所述显示面板提供所述驱动信号；其中，所述显示面板被配置为根据所述驱动信号，显示所述盲文信息。
在本公开的实施例中，所述控制单元包括：转换模块，其与所述信息识别单元耦接，并被配置为将所述文本信息转换成盲文信息，并根据所述盲文信息，确定所述显示面板中点位键将被凸起的显示电路，并生成第一控制指令和第二控制指令；时序控制电路，其与所述转换模块和所述显示面板耦接，并被配置为根据所述第一控制指令，产生扫描信号以提供给所述显示面板的扫描线；以及数据驱动电路，其与所述转换模块和所述显示面板耦接，并被配置为根据所述第二控制指令，产生数据信号以提供给所述显示面板的数据线。
在本公开的实施例中，所述信息识别单元包括图像识别装置和/或语音 识别装置。
本公开的第三方面提供了一种用于在根据本公开的第二方面的显示装置中显示盲文的方法。该方法包括：对输入信息进行识别，以获得文本信息；将所述文本信息转换成盲文信息；根据所述盲文信息，生成用于所述显示装置的中的显示面板驱动信号；以及根据所述驱动信号，驱动所述显示面板以显示所述盲文信息。
在本公开的实施例中，根据所述盲文信息生成驱动信号包括：根据所述盲文信息，确定所述显示面板中点位键将被凸起的显示电路；根据所确定的显示电路，生成第一控制指令和第二控制指令；根据所述第一控制指令和所述第二控制指令，分别产生用于所述显示面板的扫描信号和数据信号。
在本公开的实施例中，所述输入信息包括图像信息、语音信息中的至少一个。
附图说明
为了更清楚地说明本公开的实施例或现有技术中的技术方案，下面将对本公开的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公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是根据本公开的实施例的显示面板的结构示意图；
图2是根据本公开的实施例的显示面板中的点位单元的示例性结构示意图；
图3是根据本公开的实施例的显示面板中的点位单元的另一个示例性结构示意图；
图4是根据本公开的另一个实施例的显示面板的结构示意图；
图5是根据本公开的实施例的显示装置的结构示意图；
图6是根据本公开的另一个实施例的显示装置的结构示意图；
图7是根据本公开的实施例的显示盲文的方法的流程图；
图8是图7的实施例中生成驱动信号的过程的流程图。
具体实施方式
为使本公开的实施例的上述目的、特征和优点能够更加明显易懂，下面将结合本公开实施例中的附图，对本公开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公开一部分实施例，而不是全部的实施例。基于本公开的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本公开保护的范围。
需要说明的是，在以下实施例所结合的附图中，所示出的显示面板所包括的显示电路的具体数量以及各显示电路所包括的开关及点位单元的具体数量仅仅为示意说明，并不构成对其各自实际数量的限定。
图1是根据本公开的实施例的显示面板的结构示意图。如图1所示，显示面板包括多条扫描线GATE、多条数据线DATA、以及设置在多条扫描线GATE和多条数据线DATA的交叉处的多个显示电路2。其中，显示电路2包括开关3以及与开关3耦接的点位单元4。开关3可根据来自扫描线GATE的扫描信号开启或关断。
图2是图1所示的显示面板中的点位单元4的示例性结构示意图。点位单元4包括：衬底1，在衬底1上设置的电极5，在电极5上设置的热敏层6，以及在热敏层6上设置的点位键7。其中，电极5与开关3耦接，并且可在开关3被开启时，被施加来自数据线DATA的数据信号。电极5被施加来自数据线DATA的数据信号时，会使得电极5通电，进而使得设置于电极5上的热敏层6被加热。基于热敏层6的特性，当热敏层6未被加热时，热敏层6的质地较软，设置于热敏层6上的点位键7会由于其自身重力的作用凹陷在热敏层6中，当对热敏层6加热到一定温度后，热敏层6的质地会由柔软变硬，这就会使点位键7顶起，从而使得点位键7凸起。 通过施加的扫描信号和数据信号，可以使得不同位置的点位键7的凸起。
本公开的实施例所提供的显示面板，可以是显示盲文字的显示面板。图1虚线框所示的六个显示电路2对应于一个盲文字。通过施加扫描信号和数据信号，可以使得不同位置的显示电路2中的点位键7的凸起，就可以使显示面板显示不同的盲文字。因此，采用本实施例所提供的显示面板，可以对各点位键7进行独立控制，从而使控制更为精细，进而能够更加准确地显示盲文。
此外，在该显示面板中，由于对各点位键7可采用独立控制的方式，因此，可以在合理范围内减小点位键7所占区域的面积，进而减小显示电路2所占区域的面积。由于六个显示电路2对应一个盲文字，因此，可以使得显示面板在单位面积内显示更多的盲文字。从另一方面说，由于减小了单个盲文字所占区域的面积，那么就可以在一定程度上减小显示面板尺寸的大小，从而方便盲人携带和使用。
可以理解的是，在该显示面板中，各点位单元4可视为一个像素单元，对各点位单元4所包括的点位键7的控制可以精确到像素微米级别。
在本公开的实施例中，热敏层6可采用涂层工艺形成于电极5背向衬底1的表面上。其中，热敏层6可由例如凝胶的热敏材料制成。基于热敏材料的特性，当热敏材料未被加热时，热敏材料的质地较软，当对热敏材料加热到一定的温度临界值后，热敏材料的质地会由柔软变硬。可以理解的是，对于不同的热敏材料，所对应的各自的温度临界值也就有所不同。并且，由于热敏材料的不同，当对热敏材料加热到一定的温度临界值后，热敏材料的质地由柔软变硬所需的时间也就不同，也就是说从电极5被施加数据信号，到控制点位键7凸起的时间也就不同。例如，从电极5被施加数据信号，到控制点位键7凸起所需的时间可为一帧的时间。
此外，由于盲人需要依靠手指触摸的方式感测盲文，为了避免长时间的手指触摸对热敏层6造成损伤，在本公开的实施例中，如图3所示，点位单元4还包括保护层8。保护层8可设置在热敏层6与点位键7之间， 用来保护热敏层6。在本公开的一个示例实施例中，保护层8具体可由树脂材料制成。
在本公开的实施例中，显示电路2所包括的点位单元4呈矩阵状排列。由于在通常情况下，一个标准的盲文字由2×3点位的点阵构成，通过不同位置的点位键7的凸起，以使得各显示电路2表示不同的盲文字。这样可增强显示面板的适用性，更便于盲人触摸并识别盲文。
在本公开的实施例中，如图4所示，各显示电路2中所包括的开关3可为薄膜晶体管，应当理解，也可为其他结构，在此不作限定。在本公开的一个示例实施例中，薄膜晶体管的控制极31与扫描线GATE耦接，第一极32与数据线DATA耦接，第二极33与点位单元4中的电极5耦接。可通过扫描线GATE向薄膜晶体管的控制极提供扫描信号，控制行薄膜晶体管开启。通过数据线DATA向薄膜晶体管的第一极提供数据信号，数据信号经过薄膜晶体管的第二极传输至电极5，使得电极5通电。电极5对应的热敏层6开始被加热，当加热到一定温度时，热敏层6的质地变硬，从而使得位于该热敏层6上方的点位键7凸起。
图5是根据本公开的实施例的显示装置的结构示意图。如图5所示，显示装置包括如图1所示的显示面板、信息识别单元9和控制单元10。
信息识别单元9可对输入信息进行识别，以获得文本信息。在本公开的实施例中，输入信息可包括图像信息和/或语音信息。在本公开的一个示例实施例中，图像信息(如道路信息)可通过显示装置中的摄像头获取，语音信息可通过显示装置中的传声器(例如麦克)获取。所获取的图像信息可提供给图像识别装置以进行识别，所获取的语音信息可提供给语音识别装置以进行识别，以获得文本信息。
控制单元10与信息识别单元9和显示面板耦接，并且可将文本信息转换为盲文信息，并根据盲文信息，生成用于显示面板的驱动信号，以及向显示面板提供驱动信号。显示面板可根据驱动信号，显示盲文信息。
在本公开的实施例中，如图5所示，控制单元10包括转换模块11， 时序控制电路12和数据驱动电路13。
转换模块11与信息识别单元9、时序控制电路12和数据驱动电路13分别耦接。转换模块11可将所识别的文本信息转换为盲文信息，并根据盲文信息，确定显示面板中点位键7将要凸起的显示电路2，并生成第一控制指令和第二控制指令。第一控制指令与显示电路2的时序相关，第二控制指令与显示电路2的数据相关。
时序控制电路12与转换模块11和显示面板耦接，并且可根据第一控制指令，产生扫描信号以提供给显示面板的扫描线GATE。在本公开的一个示例实施例中，时序控制电路12可通过扫描线GATE与显示电路2中所包括的开关3的控制极耦接。控制极可根据扫描信号控制开关3的开启或关断。
数据驱动电路13与转换模块11和显示面板耦接，并且可根据第二控制指令，产生数据信号以提供给显示面板的数据线DATA。在本公开的一个示例实施例中，数据驱动电路13可通过数据线DATA与显示电路2中所包括的开关3的第一极耦接。当开关3开启时，数据信号经开关3的第二极传输至对应的电极5，使得电极5通电，进而使得设置于电极5上的热敏层6被加热。
在本公开的实施例中，当显示电路2中所包括的开关3为薄膜晶体管时，如图6所示，时序控制电路12通过扫描线GATE与薄膜晶体管的控制极31耦接。时序控制电路12通过扫描线GATE向薄膜晶体管的控制极提供扫描信号，控制薄膜晶体管开启。在本公开的一个示例实施例中，时序控制电路12可控制显示电路2中所包括的薄膜晶体管逐行开启。
如图6所示，数据驱动电路13与薄膜晶体管的第一极耦接。当薄膜晶体管开启时，数据驱动电路13通过数据线DATA向薄膜晶体管的第一极提供数据信号，数据信号经过薄膜晶体管的第二极传输至对应的电极5，使得电极5通电。该电极5对应的热敏层6开始被加热，当加热到一定温度时，热敏层6的质地变硬，从而使得位于该热敏层6上方的点位键7凸起。 在本公开的示例实施例中，以控制第一行第一列的点位单元4中的点位键7凸起，以及控制第二行第二列的点位单元4中的点位键7凸起为例，对控制单元10的工作原理进行具体说明：
首先，时序控制电路12通过扫描线GATE1向第一行薄膜晶体管的控制极提供扫描信号，控制第一行薄膜晶体管开启；数据驱动电路13通过数据线DATA1向第一列薄膜晶体管的第一极提供数据信号，数据信号经过薄膜晶体管的第二极传输至第一行第一列的点位单元4所包括的电极5，使得电极5通电。该电极5对应的热敏层6开始被加热，当加热到一定温度时，热敏层6的质地变硬，从而使得位于该热敏层6上方的点位键7凸起。即控制第一行第一列的点位单元4中的点位键7凸起。
然后，时序控制电路12通过扫描线GATE2向第二行薄膜晶体管的控制极提供扫描信号，控制第二行薄膜晶体管开启；数据驱动电路13通过数据线DATA2向第二列薄膜晶体管的第一极提供数据信号，数据信号经过薄膜晶体管的第二极传输至第二行第二列的点位单元4所包括的电极5，使得电极5通电。该电极5对应的热敏层6开始被加热，当加热到一定温度时，热敏层6的质地变硬，从而使得位于该热敏层6上方的点位键7凸起。即控制第二行第二列的点位单元4中的点位键7凸起。
根据本实施例所提供的显示装置，由于显示装置可以对各点位键7进行独立控制，因此，使得控制更为精细，进而能够更加准确的显示盲文。另一方面，由于该显示装置还包括对输入信息进行识别以获得文本信息的信息识别单元9，以及控制单元10可将文本信息转换为盲文信息，进而根据盲文信息确定显示面板中点位键将要凸起的显示电路2。因此，本实施例所提供的显示装置还可将所获取的外界的输入信息转换为盲文信息，从而使盲人可以更好的获取外界信息。
基于对各点位键7采用独立控制的方式，因而可以在合理范围内减小点位键7所占区域的面积。一方面可以使得显示装置在单位面积内显示更多的盲文字，另一方面可以减小显示装置的尺寸，从而方便盲人携带和使 用。
图7是根据本公开的实施例的显示盲文的方法的流程图。如图7所示，该显示盲文的方法可应用于上述实施例所描述的显示装置中。在步骤S1中，对输入信息进行识别，以获得文本信息。在本公开的实施例中，输入信息可包括图像信息和/或语音信息。在本公开的一个示例实施例中，图像信息(如道路信息)可通过摄像头获取，语音信息可通过传声器(例如麦克)获取。可对所获取的图像信息和/或语音信息进行识别，以获得文本信息。
在步骤S2中，将文本信息转换为盲文信息。
在步骤S3中，根据盲文信息，生成驱动信号。在本公开的实施例中，驱动信号可包括扫描信号和数据信号。在本公开的一个示例实施例中，图8示出了生成驱动信号的过程的流程图。如图8所示，在步骤S31中，根据盲文信息，确定显示面板中点位键将要凸起的显示电路。在步骤S32中，根据所确定的显示电路，生成第一控制指令和第二控制指令。在步骤S33中，根据第一控制指令和第二控制指令，分别产生用于显示面板的扫描信号和数据信号。
在步骤S4中，根据驱动信号，驱动显示装置中的显示面板显示盲文信息。在本公开的一个示例实施例中，当显示装置的显示电路中所包括的开关为薄膜晶体管时，通过扫描线向对应的薄膜晶体管的控制极提供扫描信号，控制对应的薄膜晶体管的开启。然后，通过数据线向对应的薄膜晶体管的第一极提供用于给电极供电的数据信号，数据信号经薄膜晶体管的第二极传输至对应的电极，以使得与电极对应的热敏层被加热而变硬，从而控制对应的点位键凸起。
采用本实施例所提供的方法，一方面，可以对各点位键进行独立控制，使控制更为精细，进而能够更加准确的显示盲文。另一方面，还可将所获取的外界的输入信息转换为盲文信息，从而使盲人可以更好的获取外界信息。
以上所述仅为本公开的具体实施方式，但本公开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公开揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (12)

  1. 一种显示面板，包括：
    多条扫描线；
    多条数据线；以及
    设置在所述多条扫描线和所述多条数据线的交叉处的多个显示电路；
    其中，所述显示电路包括：
    开关，其被配置为根据来自扫描线的扫描信号开启或关断；以及
    与所述开关耦接的点位单元，其中，所述点位单元包括：衬底，在所述衬底上设置的电极，在所述电极上设置的热敏层，以及在所述热敏层上设置的点位键；
    其中，所述电极与所述开关耦接，并被配置为在所述开关被开启时，被施加来自数据线的数据信号；
    所述热敏层被配置为由所述电极加热，以使得所述点位键凸起。
  2. 根据权利要求1所述的显示面板，其中，所述热敏层由热敏材料制成。
  3. 根据权利要求1所述的显示面板，其中，所述点位单元还包括：设置在所述热敏层与所述点位键之间的保护层。
  4. 根据权利要求3所述的显示面板，其中，所述保护层由树脂材料制成。
  5. 根据权利要求1所述的显示面板，其中，所述多个显示电路被排列成矩阵状。
  6. 根据权利要求1至5任意一项所述的显示面板，其中，所述开关包括薄膜晶体管，其中，所述薄膜晶体管的控制极与扫描线耦接，第一极与数据线耦接，第二极与所述电极耦接。
  7. 一种显示装置，包括：
    如权利要求1至6任一项所述的显示面板；
    信息识别单元，其被配置为对输入信息进行识别，以获得文本信息； 以及
    控制单元，其与所述信息识别单元和所述显示面板耦接，并被配置为将所述文本信息转换成盲文信息，根据所述盲文信息，生成用于所述显示面板的驱动信号，以及向所述显示面板提供所述驱动信号；
    其中，所述显示面板被配置为根据所述驱动信号，显示所述盲文信息。
  8. 根据权利要求7所述的显示装置，其中，所述控制单元包括：
    转换模块，其与所述信息识别单元耦接，并被配置为将所述文本信息转换成盲文信息，并根据所述盲文信息，确定所述显示面板中点位键将被凸起的显示电路，并生成第一控制指令和第二控制指令；
    时序控制电路，其与所述转换模块和所述显示面板耦接，并被配置为根据所述第一控制指令，产生扫描信号以提供给所述显示面板的扫描线；以及
    数据驱动电路，其与所述转换模块和所述显示面板耦接，并被配置为根据所述第二控制指令，产生数据信号以提供给所述显示面板的数据线。
  9. 根据权利要求7所述的显示装置，其中，所述信息识别单元包括图像识别装置和/或语音识别装置。
  10. 一种用于在如权利要求7至9任意一项所述的显示装置中显示盲文的方法，包括：
    对输入信息进行识别，以获得文本信息；
    将所述文本信息转换成盲文信息；
    根据所述盲文信息，生成用于所述显示装置中的显示面板的驱动信号；以及
    根据所述驱动信号，驱动所述显示面板以显示所述盲文信息。
  11. 根据权利要求10所述的显示方法，其中，根据所述盲文信息生成用于所述显示装置中的显示面板的驱动信号包括：
    根据所述盲文信息，确定所述显示面板中点位键将被凸起的显示电路；
    根据所确定的显示电路，生成第一控制指令和第二控制指令；
    根据所述第一控制指令和所述第二控制指令，分别产生用于所述显示面板的扫描信号和数据信号。
  12. 根据权利要求10所述的方法，其中，所述输入信息包括图像信息和语音信息中的至少一个。
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