WO2020052002A1 - 一种显示装置及其屏幕亮度自动调节方法 - Google Patents
一种显示装置及其屏幕亮度自动调节方法 Download PDFInfo
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- WO2020052002A1 WO2020052002A1 PCT/CN2018/111642 CN2018111642W WO2020052002A1 WO 2020052002 A1 WO2020052002 A1 WO 2020052002A1 CN 2018111642 W CN2018111642 W CN 2018111642W WO 2020052002 A1 WO2020052002 A1 WO 2020052002A1
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- display
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- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Definitions
- the present application belongs to the technical field of display manufacturing, and more particularly, relates to a display device and a method for automatically adjusting screen brightness.
- TFT Thin film transistor-Liquid Crystal display
- the purpose of the embodiments of the present application is to provide a display device and a method for automatically adjusting the brightness of a screen thereof, so as to solve the problem that the display device does not automatically adjust the brightness and cannot effectively overcome the technical problems of waste of energy and decreased vision.
- An embodiment of the present application provides a display device.
- the display device includes a control component and a display panel having a display area and a non-display area.
- the display device further includes:
- a first switch photosensitive device which is disposed in the non-display area of the display panel and is configured to convert the light intensity of the environment into a first electrical signal
- a second switch photosensitive device which is disposed in a display area of the display panel and configured to convert the light intensity inside the display and the light intensity of the environment into a second electrical signal;
- control component automatically adjusts the display brightness of the display panel according to the first electrical signal and the difference between the second electrical signal and the first electrical signal.
- the display device further includes a signal processor configured to receive, process and feedback the first electrical signal and the second electrical signal.
- the display panel includes a black matrix, and the black matrix is provided with an avoidance gap on the light-sensitive parts of the first switch photosensitive device and the second switch photosensitive device.
- the first switch photosensitive device and the second switch photosensitive device are both manufactured by a four-layer mask process.
- the display device further includes a driving circuit board electrically connected to the control component; the first switch photosensitive device and the second switch photosensitive device include:
- Channel layer with photosensitivity set to collect light intensity and generate photocurrent
- a source electrode connected to the driving circuit board and disposed on the channel layer;
- the drain electrode is connected to the driving circuit board and is disposed on the channel layer;
- the channel layer corresponds to a portion between the source electrode and the drain electrode to form a conductive channel; the first switch photosensitive device and the second switch photosensitive device are electrically connected to the driving circuit board.
- the first switch photosensitive device and the second switch photosensitive device further include:
- a switching gate electrode is disposed on the substrate.
- An insulating layer is disposed on the substrate and is configured to protect the switch gate electrode and isolate the channel layer from the switch gate electrode.
- the first switch photosensitive device and the second switch photosensitive device further include:
- the doped layer is disposed above the channel layer, and is configured to reduce the contact resistance between the channel layer and the source electrode and the drain electrode.
- a protective layer is provided on the insulating layer
- the protective layer surrounds the channel layer, the doped layer, the source electrode, and the drain electrode from the periphery, and is provided with an opening adapted to the conductive channel.
- An embodiment of the present application further provides a display device, where the display device includes:
- Display panel with display area and non-display area
- a first switching light receiving device which is disposed in a non-display area of the display panel and is configured to convert ambient light intensity into a first electrical signal
- a second switch photosensitive device which is disposed in a display area of the display panel and configured to convert the light intensity inside the display and the light intensity of the environment into a second electrical signal;
- a signal processor configured to receive, process, and feed back the first electrical signal and the second electrical signal
- a control component that automatically adjusts the display brightness of the display panel according to the first electrical signal and a difference between the second electrical signal and the first electrical signal;
- the display device further includes:
- a driving circuit board which is electrically connected with the control component
- the first switch photosensitive device and the second switch photosensitive device include:
- Channel layer with photosensitivity set to collect light intensity and generate photocurrent
- a source electrode connected to the driving circuit board and disposed on the channel layer;
- the drain electrode is connected to the driving circuit board and is disposed on the channel layer;
- the channel layer corresponds to a portion between the source electrode and the drain electrode to form a conductive channel; the first switch photosensitive device and the second switch photosensitive device are electrically connected to the driving circuit board.
- the first switch photosensitive device and the second switch photosensitive device further include:
- a switching gate electrode is disposed on the substrate.
- An insulating layer is disposed on the substrate and is configured to protect the switch gate electrode and isolate the channel layer from the switch gate electrode.
- the first switch photosensitive device and the second switch photosensitive device further include:
- the doped layer is disposed above the channel layer, and is configured to reduce the contact resistance between the channel layer and the source electrode and the drain electrode.
- a protective layer is provided on the insulating layer
- the protective layer surrounds the channel layer, the doped layer, the source electrode, and the drain electrode from the periphery; the protective layer is provided with an opening adapted to the conductive channel.
- the first switch photosensitive device and the second switch photosensitive device are thin film transistor devices.
- An embodiment of the present application further provides a method for automatically adjusting screen brightness of a display device, wherein the display device includes:
- Display panel with display area and non-display area
- a first switching light sensing device which is disposed in a non-display area of the display panel.
- a second switch photosensitive device which is disposed in a display area of the display panel
- the method includes:
- the first switch photosensitive device converts the light intensity of the environment into a first electrical signal
- the second switch photosensitive device converts the light intensity inside the display and the environment light intensity into a second electrical signal
- the control component automatically adjusts the display brightness of the display panel according to the first electrical signal and the difference.
- the display device further includes a signal processor; the step of making a difference between the second electrical signal and the first electrical signal includes:
- the signal processor receives the first electrical signal and the second electrical signal, respectively;
- the display panel includes a black matrix, and the black matrix is provided with an avoidance gap on the photosensitive portions of the first switch photosensitive device and the second switch photosensitive device.
- the first switch photosensitive device and the second switch photosensitive device are thin film transistor devices.
- the display device and the method for automatically adjusting the screen brightness convert the ambient light intensity into a first electrical signal by using a first switch photosensitive device, and simultaneously use the second switch photosensitive device to convert the light intensity and the environmental The light intensity is converted into a second electrical signal, wherein the control component can automatically adjust the display brightness of the display panel according to the first electrical signal and the difference between the second electrical signal and the first electrical signal.
- two switch light-sensitive devices such as two thin-film transistor devices are used as light-sensitive devices to monitor the light intensity of the environment and the light intensity of the display itself at the same time, so as to more accurately and autonomously adjust the brightness of the display to avoid over-bright or Dark display causes energy waste and vision problems.
- FIG. 1 is a schematic diagram of an installation structure of two switch photosensitive devices in a display device according to an embodiment of the present application
- FIG. 2 is a schematic diagram of an electrical connection structure of two switch photosensitive devices in a display device according to an embodiment of the present application
- FIG. 3 is a flowchart of a method for automatically adjusting a screen brightness of a display device according to an embodiment of the present application.
- 200-first switch photosensitive device / first thin film transistor device 210-substrate, 220-switch gate electrode, 230-insulating layer, 240-channel layer, 250-doped layer, 260-source electrode, 270-drain electrode, 280-protective layer, 290-transparent conductive layer;
- 300-second switch photosensitive device / second thin film transistor device 400-conductive channel, 500-light beam; 600-drive circuit board.
- the display device may be a medium or large-sized display device such as a television or a computer.
- the display device may be a TFT-based liquid crystal display, and of course, it may be other suitable display devices.
- the display device has multiple switching devices, specifically a thin film transistor device (ie, a TFT device).
- a part of the TFT device can be used as a switching device to control the brightness of each pixel, and another part of the TFT device is the first
- the switch light-sensitive device 200 and the second switch light-sensitive device 300 are mainly used as light-sensitive devices to simultaneously monitor the light intensity of the environment and the light intensity inside the display (ie, the light intensity of the display itself), and feed back the monitoring results to the control of the display
- the module automatically adjusts the light intensity of the display.
- the device has almost no technical prejudice. It installs two switching light-sensitive devices in the display device and introduces the influence factor of light intensity inside the display. By referring to multiple influence factors, it can more accurately adjust the brightness of the display and effectively ensure the environment.
- the light intensity of the display and the display itself reach a balanced state, avoiding Ambient light intensity is too weak when the brightness of the display screen is too bright, the brightness of the display screen or when the light intensity is too strong and too dark surroundings resulting in waste of energy and visual impact of the situation.
- the TFT device is directly used as the light-sensitive device, there is no need to separately install a light-receiver on the display, so the manufacturing cost of the display device is low.
- the display device includes a control component (not shown) and a display panel 100.
- the display panel 100 has a display area (not shown) and a non-display area (not shown).
- the control component is mainly configured to control display brightness of the display panel 100 and the like.
- the display device further includes a first switch photosensitive device 200 and a second switch photosensitive device 300.
- the first switch photosensitive device 200 is disposed in a non-display area of the display panel 100, and is mainly configured to convert ambient light intensity into a first electrical signal. That is, since the non-display area is very weakly affected by the brightness of the display, the first switch photosensitive device 200 is mainly configured to collect the light intensity signal of the light beam 500 in the environment and convert the light intensity signal into an electrical signal.
- the second switch photosensitive device 300 is disposed in the display area of the display panel 100 and is mainly configured to convert the light intensity inside the display and the light intensity of the environment into a second electrical signal. That is, the second switch photosensitive device 300 can not only collect the light intensity signal of the light beam 500 in the environment, but also consider that the brightness of the display itself will gradually decrease as the usage time increases. The second switch photosensitive device 300 can also collect the display itself. Light intensity signal. It can be understood from the above that there must be a signal difference between the second electrical signal and the first electrical signal, and the signal difference is an electrical signal value corresponding to the light intensity inside the display.
- the control component (not shown) can automatically adjust the display brightness of the display panel 100 according to the first electrical signal and the difference between the second electrical signal and the first electrical signal.
- both the first and second switch photosensitive devices 200 and 300 serve as photosensitive devices and are set to monitor the light intensity of the environment and the internal light intensity of the display at the same time. By ensuring that the environment and the light intensity inside the display maintain a balanced state , One of them will not be too dark or too bright, causing excessive energy consumption and problems affecting vision.
- the non-display area is an edge portion of the display panel 100 and the display area is a middle portion of the display panel 100. Generally, the display area is surrounded by the non-display area. Of course, in fact, the positional relationship between the non-display area and the display area is not limited to this.
- the display device generally further includes a signal processor (not shown).
- the signal processor is mainly configured to receive, process, and feed back the first electrical signal and the second electrical signal. Specifically, after receiving the first electrical signal and the second electrical signal, the signal processor compares and analyzes the second electrical signal and the first electrical signal, makes the difference between the two, and then feeds back the first electrical signal and the difference. Control unit for LCD monitor.
- the display panel includes a black matrix (not shown), wherein the black matrix is provided with an avoidance gap (not shown) on the photosensitive portions of the first switch photosensitive device 200 and the second switch photosensitive device 300.
- the first switching photosensitive device 200 and the second switching photosensitive device 300 are TFT switching devices that do not need to be shielded by a black matrix.
- the display device further includes a TFT device that can be set to control the brightness and darkness of each pixel, which needs to be blocked by a black matrix. Understandably, in this application, there is no need to install a photoreceptor, but a TFT device can be directly made into the photosensitivity “TFT switching device”, so it is beneficial to save costs.
- the first switch photosensitive device 200 and the second switch photosensitive device 300 are both manufactured by using a four-layer mask (commonly referred to as 4Mask) process.
- 4Mask commonly referred to as 4Mask
- the display device further includes a driving circuit board 600, wherein the driving circuit board 600 is electrically connected to a control component (not shown).
- each of the first switch photosensitive device 200 and the second switch photosensitive device 300 includes a channel layer 240, a source electrode 260, and a drain electrode 270.
- the channel layer 240 has photosensitivity; the source electrode 260 and the drain electrode 270 are not in contact with each other and are connected to the driving circuit board 600, and the source electrode 260 and the drain electrode 270 are disposed on the channel layer 240. In this way, a portion of the channel layer 240 between the source electrode 260 and the drain electrode 270 can form a conductive channel 400.
- the first switch photosensitive device 200 and the second switch photosensitive device 300 are both electrically connected to the driving circuit board 600. Understandably, after the light beam 500 in the environment or the light beam 500 inside the display enters the conductive channel 400, it will be collected by the channel layer 240, and the channel layer 240 can generate a photocurrent according to the light intensity of the collected light beam 500. The photoinductive current is conducted to the driving circuit board 600 through the source electrode 260 and the drain electrode 270.
- the control component can adjust the brightness of the display screen by changing the output power of the backlight module, so as to achieve the purpose of saving energy and protecting the human eye. Understandably, in order to improve the collection capability of the light beam 500 or the photosensitivity of the channel layer 240, the length of the conductive channel 400 is generally increased, for example, to 7.5 ⁇ m.
- both the first switch photosensitive device 200 and the second switch photosensitive device 300 further include a substrate 210, a switch gate electrode 220 disposed on the substrate 210, and An insulating layer 230 on the substrate 210.
- the insulating layer 230 is mainly configured to protect the switching gate electrode 220 and separate the channel layer 240 from the switching gate electrode 220.
- two ends of the insulating layer 230 are located between the channel layer 240 and the substrate 210, and a middle portion is located between the channel layer 240 and the switching gate electrode 220. In this way, the structure is more simple and compact.
- the substrate 210 is usually a glass substrate, of course, it may also be a substrate of other suitable materials.
- the insulating layer 230 is usually a gate insulating layer.
- each of the first switch photosensitive device 200 and the second switch photosensitive device 300 further includes a doped layer 250, wherein the doped layer 250 is disposed above the channel layer 240.
- the doping layer 250 can reduce the contact resistance between the channel layer 240 and the source electrode 260 and between the channel layer 240 and the drain electrode 270, thereby ensuring the conduction of the photocurrent. It is smoother and the electrical signals received by the driving circuit board 600 are more accurate, thereby facilitating subsequent adjustment of the screen brightness more accurately.
- a protective layer 280 is provided on the insulating layer 230.
- the protection layer 280 surrounds the channel layer 240, the doped layer 250, the source electrode 260, and the drain electrode 270 from the periphery to protect each layer and each electrode.
- the protection layer 280 is provided with an opening adapted to the conductive channel 400.
- the protective layer 280 has a “concave” shape.
- the protective layer 280 is usually an insulating protective layer, that is, the protective layer 280 is usually made of an insulating material or adopts other methods to achieve an insulating effect.
- each of the first switch photosensitive device 200 and the second switch photosensitive device 300 further includes a transparent conductive layer 290 inserted on the protective layer 280.
- the transparent conductive layer 290 is configured to electrically connect the source electrode 260 and the driving circuit board 600, and the drain electrode 270 and the driving circuit board 600.
- the present application further provides a display device.
- the main technical features of the display device provided by this embodiment and the display device of the above embodiment are basically the same, with the following differences:
- the display device includes a display panel 100, a first switch photosensitive device 200, a second switch photosensitive device 300, a signal processor (not shown), a control component (not shown), and a driving circuit board 600.
- the display panel 100 has a display area (not shown) and a non-display area (not shown).
- the first switch photosensitive device 200 is disposed in a non-display area of the display panel 100, and is mainly configured to convert ambient light intensity into a first electrical signal.
- the second switch photosensitive device 300 is disposed in the display area of the display panel 100 and is mainly configured to convert the light intensity inside the display and the light intensity of the environment into a second electrical signal.
- the non-display area of the display panel 100 is usually an edge portion of the display panel 100, and the display area is usually a middle portion of the display panel 100.
- the positional relationship between the non-display area and the display area is not limited to this.
- the first switch photosensitive device is a thin film transistor device
- the second switch photosensitive device is also a thin film transistor device.
- the signal processor is mainly configured to receive, process, and feedback the first electrical signal and the second electrical signal.
- the control component (not shown) can automatically adjust the display brightness of the display panel 100 according to the first electrical signal and the difference between the second electrical signal and the first electrical signal.
- both the first switch photosensitive device 200 and the second switch photosensitive device 300 are used as photosensitive devices, which can simultaneously monitor the ambient light intensity and the internal light intensity of the display. By ensuring that the environment and the internal light intensity of the display maintain a balanced state, No one will be too dark or too bright, causing excessive energy consumption and affecting vision.
- the driving circuit board 600 is electrically connected to a control module (not shown).
- each of the first switch photosensitive device 200 and the second switch photosensitive device 300 includes a channel layer 240, a source electrode 260 and a drain electrode 270.
- the channel layer 240 has photosensitivity.
- the source electrode 260 and the drain electrode 270 are not in contact with each other, are connected to the driving circuit board 600, and are both disposed on the channel layer 240.
- the channel layer 240 corresponds to a portion between the source electrode 260 and the drain electrode 270 to form a conductive channel 400; the first switch photosensitive device 200 and the second switch photosensitive device 300 are electrically connected to the driving circuit board 600.
- the channel layer 240 Not only can the light intensity be collected to generate a photoinductive current, but the generated photoinductive current can be conducted to the driving circuit board 600 through the source electrode 260 and the drain electrode 270.
- the control component of the display device can adjust the brightness of the display screen by changing the output power of the backlight module. To achieve the purpose of energy saving and protecting the human eye.
- the present application also provides a method for automatically adjusting the screen brightness of a display device.
- the display device includes a control component (not shown), a display panel 100, a first switch photosensitive device 200 and a second switch photosensitive device 300.
- the display panel 100 has a display area and a non-display area.
- the first switch photosensitive device 200 is disposed in a non-display area of the display panel 100
- the second switch photosensitive device 300 is disposed in a display area of the display panel 100.
- both the first switch photosensitive device 200 and the second switch photosensitive device may be photosensitive devices that can be modified by thin film transistor devices.
- the display panel 100 includes a black matrix (not shown), and the black matrix is provided with an avoidance gap (not shown) on the photosensitive portions of the first switch photosensitive device 200 and the second switch photosensitive device 300.
- the first switch photosensitive device 200 is a first thin film transistor device 200 that does not need to be shielded with a black matrix
- the second switch photosensitive device 300 is a second thin film transistor device 300 that does not need to be shielded with a black matrix.
- the method includes:
- the first switch photosensitive device 200 converts the ambient light intensity into a first electrical signal
- the second switch photosensitive device 300 converts the light intensity inside the display and the ambient light intensity into a second electrical signal.
- the first electrical signal and the second electrical signal are converted synchronously.
- the step further includes: using a signal processor to first receive the first electrical signal and the second electrical signal, respectively;
- the light intensity received by the second switch photosensitive device 300 can also be directly compared with the light intensity received by the first switch photosensitive device 200.
- the control component automatically adjusts the display brightness of the display panel 100 according to the difference between the first electrical signal and the second electrical signal and the first electrical signal.
- the display device utilizes the conductive characteristics of the conventional TFT device ’s conductive channel 400 to have photosensitivity. It is not necessary to separately install a photosensitive device, and the first switch photosensitive device 200 and the first Two switch photosensitive devices 300 are used, and the first switch photosensitive device 200 located at the edge portion is used to convert the ambient light intensity into a first electrical signal.
- the second switch photosensitive device 300 located at the middle portion is used to convert the ambient light intensity and the display
- the internal light intensity is converted into a second electrical signal together
- the signal processor performs a difference processing between the second electrical signal and the first electrical signal, and the related signal is fed back to the control component, so that the control component can
- the difference between the electrical signal and the two signals automatically adjusts the brightness of the display screen to ensure that the light intensity of the environment and the light intensity inside the display reach a balanced state, which greatly saves energy consumption and reduces the chance of myopia in the eyes of young people.
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Abstract
一种显示装置，包括控制组件、具有显示区域和非显示区域的显示面板（100）、设置于非显示区域的第一开关感光器件（200）以及设置于显示区域的第二开关感光器件（300），第一开关感光器件（200）将环境光强转化为第一电信号，第二开关器件（300）将显示器内部的光强和环境的光强转化为第二电信号；控制组件根据第一电信号以及第二电信号与第一电信号的差值自动调节显示面板（100）的显示亮度。
Description
本申请属于显示器制造技术领域，更具体地说，是涉及一种显示装置及其屏幕亮度自动调节方法。
众所周知，显示器作为一种将某些电子文件通过特定的传输设备显示到屏幕上再反射到人眼的显示工具，已深深融入到人们的日常生活中，成为人们生产生活中不可或缺的一部分。另外，薄膜晶体管（Thin
film Transistor，TFT）是指液晶显示器上的每一液晶像素点都是由集成在其后的薄膜晶体管来驱动。因薄膜晶体管液晶显示器（Thin film transistor-Liquid
crystal display，TFT-LCD）具有高响应度、高亮度、高对比度及制造工艺较成熟等优点，被认为是最好的LCD彩色显示器之一，早已作为各类笔记本电脑、台式机的主流显示设备。
随着科技的进步，显示器的质量和显示效果越来越好。为节约能耗和降低显示器随环境变化对眼睛的刺激，手机、IPAD等随身携带的显示器大部分都安装有感光器，以控制显示器的背光亮度随环境的变化而改变。对应地，能自动调节亮度的中、大型尺寸的显示器上一般都安装有感光设备，且这些感光设备基本用来收集外界环境光强数据。然而，该方案在节能及保护视力方面仍不理想。
本申请实施例的目的在于提供一种显示装置及其屏幕亮度自动调节方法，用以解决显示装置自动调节亮度的效果不佳，无法有效地克服能源浪费和视力下降的技术问题。
为解决上述技术问题，本申请实施例中采用的技术方案是：
本申请实施例中提供了一种显示装置，所述显示装置包括控制组件及具有显示区域和非显示区域的显示面板；所述显示装置还包括：
第一开关感光器件，设置于所述显示面板的所述非显示区域，设置为将环境的光强转化为第一电信号；和
第二开关感光器件，设置于所述显示面板的显示区域，设置为将显示器内部的光强和所述环境的光强转化为第二电信号；
其中，所述控制组件根据所述第一电信号以及所述第二电信号与所述第一电信号的差值自动调节所述显示面板的显示亮度。
在一实施例中，所述显示装置还包括设置为接收、处理并反馈所述第一电信号和所述第二电信号的信号处理器。
在一实施例中，所述显示面板包括黑矩阵，所述黑矩阵于所述第一开关感光器件和所述第二开关感光器件的感光部位开设有避让缺口。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件均采用四层掩模板工艺制作而成。
在一实施例中，所述显示装置还包括与所述控制组件电连接的驱动电路板；所述第一开关感光器件和所述第二开关感光器件包括：
通道层，具有光敏性，设置为收集光强并产生光感电流；
源电极，接入到所述驱动电路板，设置于所述通道层上；以及，
漏电极，接入到所述驱动电路板，设置于所述通道层上；
所述通道层对应于所述源电极和所述漏电极之间的部分形成导电沟道；所述第一开关感光器件和所述第二开关感光器件与所述驱动电路板电连接。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件还包括：
基板；
开关栅电极，设置于所述基板上；以及，
绝缘层，设置于所述基板上，设置为保护所述开关栅电极并将所述通道层和所述开关栅电极隔开。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件还包括：
掺杂层，设置于所述通道层的上方，设置为降低所述通道层与所述源电极、所述漏电极之间的接触电阻。
在一实施例中，所述绝缘层上设有保护层；
所述保护层从外围包围所述通道层、掺杂层、源电极和漏电极，且开设有与所述导电沟道适配的开口。
本申请实施例中还提供了一种显示装置，所述显示装置包括：
显示面板，具有显示区域和非显示区域；
第一开关感光器件，设置于所述显示面板的非显示区域，设置为将环境的光强转化为第一电信号；
第二开关感光器件，设置于所述显示面板的显示区域，设置为将显示器内部的光强和所述环境的光强转化为第二电信号；
信号处理器，设置为接收、处理并反馈所述第一电信号和所述第二电信号；以及，
控制组件，根据所述第一电信号以及所述第二电信号与所述第一电信号的差值自动调节所述显示面板的显示亮度；
所述显示装置还包括：
驱动电路板，与所述控制组件电连接；
所述第一开关感光器件和所述第二开关感光器件包括：
通道层，具有光敏性，设置为收集光强并产生光感电流；
源电极，接入到所述驱动电路板，设置于所述通道层上；以及，
漏电极，接入到所述驱动电路板，设置于所述通道层上；
所述通道层对应于所述源电极和所述漏电极之间的部分形成导电沟道；所述第一开关感光器件和所述第二开关感光器件与所述驱动电路板电连接。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件还包括：
基板；
开关栅电极，设置于所述基板上；以及，
绝缘层，设置于所述基板上，设置为保护所述开关栅电极并将所述通道层和所述开关栅电极隔开。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件还包括：
掺杂层，设置于所述通道层的上方，设置为降低所述通道层与所述源电极、所述漏电极之间的接触电阻。
在一实施例中，所述绝缘层上设有保护层；
所述保护层从外围包围所述通道层、掺杂层、源电极和漏电极；所述保护层开设有与所述导电沟道适配的开口。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件为薄膜晶体管器件。
本申请实施例中还提供了一种显示装置的屏幕亮度自动调节方法，其中，所述显示装置包括：
控制组件；
显示面板，具有显示区域和非显示区域；
第一开关感光器件，设置于所述显示面板的非显示区域；以及，
第二开关感光器件，设置于所述显示面板的显示区域；
所述方法包括：
所述第一开关感光器件将环境的光强转化为第一电信号，所述第二开关感光器件将显示器内部的光强和所述环境的光强转化为第二电信号；
将所述第二电信号和所述第一电信号做差值；
所述控制组件根据所述第一电信号和所述差值自动调节所述显示面板的显示亮度。
在一实施例中，所述显示装置还包括信号处理器；所述将所述第二电信号和所述第一电信号做差值的步骤包括：
所述信号处理器分别接收所述第一电信号和所述第二电信号；
对所述第一电信号和所述第二电信号做差值处理。
在一实施例中，所述显示面板包括黑矩阵，所述黑矩阵于所述第一开关感光器件和第二开关感光器件的感光部位开设有避让缺口。
在一实施例中，所述第一开关感光器件和所述第二开关感光器件为薄膜晶体管器件。
本申请实施例提供的显示装置及其屏幕亮度自动调节方法通过采用第一开关感光器件将环境的光强转化为第一电信号，同时采用第二开关感光器件将显示器内部的光强和环境的光强转化为第二电信号，其中，控制组件能根据第一电信号及第二电信号与第一电信号的差值来自动调节显示面板的显示亮度。这样，本申请将两开关感光器件如两薄膜晶体管器件均作为感光设备，以同时监控环境的光强和显示器自身的光强，从而更加精确地自主调节显示器的亮度，避免因显示器过亮或过暗的显示而出现能源浪费和影响视力的问题。
为了更清楚地说明本申请实施例中的技术方案，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申请的一些实施例，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是本申请的一实施例中显示装置中两开关感光器件的安装结构示意简图；
图2是本申请的一实施例中显示装置中两开关感光器件的电性连接结构简图；
图3是本申请的一实施例中显示装置的屏幕亮度自动调节方法的流程图。
其中，附图中的标号如下：
100-显示面板；
200-第一开关感光器件/第一薄膜晶体管器件、210-基板、220-开关栅电极、230-绝缘层、240-通道层、250-掺杂层、260-源电极、270-漏电极、280-保护层、290-透明导电层；
300-第二开关感光器件/第二薄膜晶体管器件、400-导电沟道、500-光束；600-驱动电路板。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接或者间接位于另一个部件上。当一个部件被称为“连接于”另一个部件，它可以直接或者间接连接至另一个部件上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本专利的限制。术语“第一”、“第二”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
为了说明本申请所述的技术方案，以下结合具体附图及实施例对本申请提供的一种显示装置的实现进行详细说明。
需说明的是，该显示装置可以为电视、电脑等中、大型尺寸的显示设备。具体在本实施例中，该显示装置可以为一种基于TFT的液晶显示器，当然，还可为其它合适的显示设备。
总体上，该显示装置具有多个开关器件，具体为一种薄膜晶体管器件（也即TFT器件），其中，一部分TFT器件可以作为开关器件以控制每个像素的明暗，另一部分TFT器件如第一开关感光器件200和第二开关感光器件300主要用作感光设备，以同时监控环境的光强和显示器内部的光强（也即显示器自身的光强），并将监控的结果反馈给显示器的控制组件以自动调节调节显示器的光强，故此，通过克服人们很少考虑在电视、电脑等中、大型的显示器上安装感光设备，以及人们认为的中大型尺寸的显示器主要应用于室内、有无感光设备几乎没有影响的技术偏见，在显示装置内安装两个开关感光器件，并引进显示器内部的光强这一影响因子，通过参考多个影响因子以更加准确地调节显示器的亮度，有效地确保环境的光强和显示器自身的光强达到平衡状态，避免出现周围环境的光强过弱时显示器屏幕的亮度过亮，或者周围环境的光强过强时显示器屏幕的亮度过暗而致使能源浪费和影响视力的情况。另外，因直接利用TFT器件作为感光设备，而无需在显示器上另外安装感光器，故此，该显示装置的制作成本较低。
该显示装置，包括控制组件（图未示）及显示面板100。其中，显示面板100具有显示区域（图未示）和非显示区域（图未示）。控制组件主要设置为控制显示面板100的显示亮度等。如图2所示，该显示装置还包括第一开关感光器件200和第二开关感光器件300。具体地，第一开关感光器件200设置于显示面板100的非显示区域，主要设置为将环境的光强转化为第一电信号。也即，因非显示区域受显示器亮度的影响非常微弱，故，第一开关感光器件200主要设置为收集环境中光束500的光强信号并将该光强信号转化为电信号。
对应地，第二开关感光器件300设置于显示面板100的显示区域，主要设置为将显示器内部的光强和环境的光强转化为第二电信号。也即，第二开关感光器件300不仅能收集环境中光束500的光强信号，考虑到显示器自身的亮度会随着使用时间的增加逐渐减弱等问题，第二开关感光器件300还能收集显示器自身的光强信号。由上可以理解地，第二电信号和第一电信号之间必然存在一信号差值，且该信号差值为显示器内部的光强对应的电信号值。
在本实施例中，控制组件（图未示）能根据第一电信号以及第二电信号与第一电信号的差值自动调节显示面板100的显示亮度。可以理解地，第一开关感光器件200和第二开关感光器件300均作为感光设备，设置为同时监控环境的光强和显示器的内部光强，通过确保环境和显示器内部的光强保持一个平衡状态，不会出现其中一个过暗或过亮的情况而造成能耗过大及影响视力的问题。
需说明的是，具体在本实施例中，如图2所示，非显示区域为显示面板100的边缘部分，显示区域为显示面板100的中间部分，且通常，显示区域由非显示区域包围。当然，实际上，非显示区域和显示区域的位置关系并不限于此。
在一个实施例中，为方便操作，该显示装置通常还包括信号处理器（图未示）。其中，该信号处理器主要设置为接收、处理并反馈第一电信号和第二电信号。具体地，信号处理器接收到第一电信号和第二电信号后，会对比分析第二电信号和第一电信号，并将两者做差值，然后将第一电信号和差值反馈给液晶显示器的控制组件。
在一个实施例中，显示面板包括黑矩阵（图未示），其中，黑矩阵于第一开关感光器件200和第二开关感光器件300的感光部位开设有避让缺口（图未示）。也即是说，第一开关感光器件200和第二开关感光器件300为无需用黑矩阵遮挡的TFT开关器件。需说明的是，在本实施例中，实际上该显示装置还包括有需要用黑矩阵遮挡的能设置为控制各像素的明暗的TFT器件。可以理解地，在本申请中，无需另外安装感光器，而是直接采用TFT器件制作成该能感光的“TFT开关器件”，故此，利于节省成本。
在一个实施例中，第一开关感光器件200和第二开关感光器件300均采用四层掩模板（俗称为4Mask）工艺制作而成。这样，通过减少一次光刻工艺，不仅节约生产成本，还能缩短TFT器件的制程时间，提升产能和市场竞争力。
在一个实施例中，如图3所示，该显示装置还包括驱动电路板600，其中，驱动电路板600与控制组件（图未示）电连接。另外，再如图3所示，第一开关感光器件200和第二开关感光器件300均包括通道层240、源电极260和漏电极270。其中，通道层240具有光敏性；源电极260和漏电极270互不接触并均接入到驱动电路板600，以及源电极260和漏电极270均设置于通道层240上。这样，通道层240介于源电极260和漏电极270之间的部分即可形成导电沟道400。需说明的是，第一开关感光器件200和第二开关感光器件300的导电沟道400均不用黑矩阵（Black Matrix，BM）遮挡，这样，即可方便收集光束500的光强，进而产生光感电流。换句话说，在本实施例中，通过在导电沟道400上不采用BM遮挡，即可确保将薄膜晶体管器件改造成能作为感光设备的“TFT开关器件”。
另外，第一开关感光器件200和第二开关感光器件300均与驱动电路板600电连接。可以理解地，环境中的光束500或显示器内部的光束500进入导电沟道400后会被通道层240收集，且通道层240能根据收集光束500的光强产生光感电流，还能将产生的光感电流通过源电极260和漏电极270传导至驱动电路板600，这样，以第一开关感光器件200为例，人们即可根据光感电流的大小判断环境的光强，随之该显示装置的控制组件即可通过改变背光模组的输出功率来调整显示屏幕的亮度，达到节能和保护人眼的目的。可以理解地，为提高光束500的收集能力，或者说提升通道层240的光感灵敏性，通常会增大导电沟道400的长度，如增至7.5μm。
在一个实施例中，如图3所示，具体在本实施例中，第一开关感光器件200和第二开关感光器件300均还包括基板210、设置于基板210上的开关栅电极220以及设置于基板210上的绝缘层230。其中，绝缘层230主要设置为保护开关栅电极220，并将通道层240和开关栅电极220隔开。具体地，如图3所示，绝缘层230的两端位于通道层240和基板210之间，中间部分位于通道层240和开关栅电极220之间，这样，结构更加简单且紧凑。
另外，需说明的是，在本实施例中，基板210通常为玻璃基板，当然实际上还可以为其它合适材质的基板。绝缘层230通常采用栅极绝缘层。
在一个实施例中，如图3所示，第一开关感光器件200和第二开关感光器件300均还包括掺杂层250，其中，掺杂层250设置于通道层240的上方。这样，在传导光感电流时，通过该掺杂层250即可降低通道层240与源电极260之间，以及通道层240与漏电极270之间的接触电阻，以此确保光感电流的传导更加顺畅以及驱动电路板600接收到的电信号更加精准，进而便于后续更准确地调节屏幕的亮度。
在一个实施例中，如图3所示，绝缘层230上设有保护层280。其中，保护层280从外围包围通道层240、掺杂层250、源电极260和漏电极270以对应保护各层和各电极，且保护层280开设有与导电沟道400适配的开口，以保护导电沟道400。总体上，保护层280呈形似“凹”形的结构。另外，具体在本实施例中保护层280通常为绝缘保护层，也即，保护层280通常采用绝缘材料制成或采用其它方式达到绝缘效果。
需说明的是，再如图3所示，第一开关感光器件200和第二开关感光器件300还均包括插接在保护层280上的透明导电层290。其中，透明导电层290设置为电性连接源电极260和驱动电路板600，以及漏电极270和驱动电路板600。
本申请还提供一种显示装置，本实施例提供的显示装置与上述实施例的显示装置的主要技术特征基本相同，不同之处在于：
如图3所示，该显示装置包括显示面板100、第一开关感光器件200、第二开关感光器件300、信号处理器（图未示）、控制组件（图未示）和驱动电路板600。其中，显示面板100具有显示区域（图未示）和非显示区域（图未示）。如图2所示，第一开关感光器件200设置于显示面板100的非显示区域，主要设置为将环境的光强转化为第一电信号。对应地，第二开关感光器件300设置于显示面板100的显示区域，主要设置为将显示器内部的光强和环境的光强转化为第二电信号。
需说明的是，再如图2所示，显示面板100的非显示区域通常为显示面板100的边缘部分，显示区域通常为显示面板100的中间部分。当然，实际上，非显示区域和显示区域的位置关系并不限于此。具体在本实施例中，第一开关感光器件为薄膜晶体管器件，对应地，第二开关感光器件也为薄膜晶体管器件。
在本实施例中，信号处理器主要设置为接收、处理并反馈所述第一电信号和所述第二电信号。控制组件（图未示）能根据第一电信号以及第二电信号与第一电信号的差值自动调节显示面板100的显示亮度。可以理解地，第一开关感光器件200和第二开关感光器件300均作为感光设备，可以同时监控环境的光强和显示器的内部光强，通过确保环境和显示器内部的光强保持一个平衡状态，不会出现其中一个过暗或过亮的情况而造成能耗过大及影响视力的问题。另外，驱动电路板600与控制组件（图未示）电连接。
如图3所示，第一开关感光器件200和第二开关感光器件300均包括通道层240、源电极260和漏电极270、。在本实施例中，通道层240具有光敏性。源电极260和漏电极270互不接触、均接入到驱动电路板600，以及均设置于通道层240上。另外，通道层240对应于源电极260和漏电极270之间的部分形成导电沟道400；第一开关感光器件200和第二开关感光器件300与驱动电路板600电连接，这样，通道层240不仅能收集光强产生光感电流，还能将产生的光感电流通过源电极260和漏电极270传导至驱动电路板600。以第一开关感光器件200为例，人们即可根据光感电流的大小判断环境的光强，随之该显示装置的控制组件即可通过改变背光模组的输出功率来调整显示屏幕的亮度，达到节能和保护人眼的目的。
本申请还提供一种显示装置的屏幕亮度自动调节方法。其中，如图3所示，该显示装置包括控制组件（图未示）、显示面板100、第一开关感光器件200和第二开关感光器件300。具体地，显示面板100具有显示区域和非显示区域。第一开关感光器件200设置于显示面板100的非显示区域，第二开关感光器件300设置于显示面板100的显示区域。
具体在本实施例中，第一开关感光器件200和第二开关感光器件均可以为由薄膜晶体管器件改造成的能感光的感光设备。或者说，具体在本实施例中，显示面板100包括黑矩阵（图未示），黑矩阵于第一开关感光器件200和第二开关感光器件300的感光部位开设有避让缺口（图未示），也即，第一开关感光器件200为无需用黑矩阵遮挡的第一薄膜晶体管器件200，第二开关感光器件300为无需用黑矩阵遮挡的第二薄膜晶体管器件300。
如图1所示，该方法包括：
S10：第一开关感光器件200将环境的光强转化为第一电信号，第二开关感光器件300将显示器内部的光强和环境的光强转化为第二电信号。为简化调节步骤，通常，第一电信号和第二电信号同步转化而成。
S20：将第二电信号和第一电信号做差值。
具体在本实施例中，该步骤进一步包括：采用信号处理器通常先分别接收第一电信号和第二电信号；
对第一电信号和第二电信号做差值处理；
最后将第一电信号和第二电信号与第一电信号的差值均反馈给控制组件。
当然，实际上，还可直接将第二开关感光器件300接收的光强与第一开关感光器件200接收的光强直接作差来比较。
S30：控制组件根据第一电信号和第二电信号与第一电信号的差值自动调节显示面板100的显示亮度。
由上可以理解地，具体在本实施例中，该显示装置的总体结构及该显示装置的屏幕亮度自动调节的工作原理如下：
该显示装置利用常规TFT器件的导电沟道400具有光敏性的特点，无需另外安装感光设备，直接在显示面板100的边缘部分和中间部分分别制作不用黑矩阵遮挡的第一开关感光器件200和第二开关感光器件300，并利用位于边缘部分的第一开关感光器件200将环境的光强转化为第一电信号，同时，利用位于中间部分的第二开关感光器件300将环境的光强及显示器内部的光强一并转化为第二电信号，利用信号处理器对第二电信号和第一电信号进行作差处理，并相关信号反馈给控制组件，由此，控制组件即可根据第一电信号和两信号的差值自动调节显示器屏幕的亮度，确保环境的光强和显示器内部的光强达到一个平衡状态，进而大大地节约能耗及减小青少年的眼睛近视几率。
以上仅为本申请的优选实施例而已，并不用于限制本申请。对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。
Claims (17)
- 一种显示装置，所述显示装置包括控制组件及具有显示区域和非显示区域的显示面板；所述显示装置还包括：第一开关感光器件，设置于所述显示面板的非显示区域，设置为将环境的光强转化为第一电信号；和第二开关感光器件，设置于所述显示面板的显示区域，设置为将显示器内部的光强和所述环境的光强转化为第二电信号；其中，所述控制组件根据所述第一电信号以及所述第二电信号与所述第一电信号的差值自动调节所述显示面板的显示亮度。
- 根据权利要求1所述的显示装置，其中，所述显示装置还包括设置为接收、处理并反馈所述第一电信号和所述第二电信号的信号处理器。
- 根据权利要求1所述的显示装置，其中，所述显示面板包括黑矩阵，所述黑矩阵于所述第一开关感光器件和所述第二开关感光器件的感光部位开设有避让缺口。
- 根据权利要求1所述的显示装置，其中，所述第一开关感光器件和所述第二开关感光器件均采用四层掩模板工艺制作而成。
- 根据权利要求1所述的显示装置，其中，所述显示装置还包括与所述控制组件电连接的驱动电路板；所述第一开关感光器件和所述第二开关感光器件包括：通道层，具有光敏性，设置为收集光强并产生光感电流；源电极，接入到所述驱动电路板，设置于所述通道层上；以及，漏电极，接入到所述驱动电路板，设置于所述通道层上；所述通道层对应于所述源电极和所述漏电极之间的部分形成导电沟道；所述第一开关感光器件和所述第二开关感光器件与所述驱动电路板电连接。
- 根据权利要求5所述的显示装置，其中，所述第一开关感光器件和所述第二开关感光器件还包括：基板；开关栅电极，设置于所述基板上；以及，绝缘层，设置于所述基板上，设置为保护所述开关栅电极并将所述通道层和所述开关栅电极隔开。
- 根据权利要求6所述的显示装置，其中，所述第一开关感光器件和所述第二开关感光器件还包括：掺杂层，设置于所述通道层的上方，设置为降低所述通道层与所述源电极、所述漏电极之间的接触电阻。
- 根据权利要求7所述的显示装置，其中，所述绝缘层上设有保护层；所述保护层从外围包围所述通道层、掺杂层、源电极和漏电极，且开设有与所述导电沟道适配的开口。
- 一种显示装置，所述显示装置包括：显示面板，具有显示区域和非显示区域；第一开关感光器件，设置于所述显示面板的非显示区域，设置为将环境的光强转化为第一电信号；第二开关感光器件，设置于所述显示面板的显示区域，设置为将显示器内部的光强和所述环境的光强转化为第二电信号；信号处理器，设置为接收、处理并反馈所述第一电信号和所述第二电信号；以及，控制组件，根据所述第一电信号以及所述第二电信号与所述第一电信号的差值自动调节所述显示面板的显示亮度；所述显示装置还包括：驱动电路板，与所述控制组件电连接；所述第一开关感光器件和所述第二开关感光器件包括：通道层，具有光敏性，设置为收集光强并产生光感电流；源电极，接入到所述驱动电路板且设置于所述通道层上；以及，漏电极，接入到所述驱动电路板及设置于所述通道层上；所述通道层对应于所述源电极和所述漏电极之间的部分形成导电沟道；所述第一开关感光器件和所述第二开关感光器件与所述驱动电路板电连接。
- 根据权利要求9所述的显示装置，其中，所述第一开关感光器件和所述第二开关感光器件还包括：基板；开关栅电极，设置于所述基板上；以及，绝缘层，设置于所述基板上，设置为保护所述开关栅电极并将所述通道层和所述开关栅电极隔开。
- 根据权利要求10所述的显示装置，其中，所述第一开关感光器件和所述第二开关感光器件还包括：掺杂层，设置于所述通道层的上方，设置为降低所述通道层与所述源电极、所述漏电极之间的接触电阻。
- 根据权利要求11所述的显示装置，其中，所述绝缘层上设有保护层；所述保护层从外围包围所述通道层、掺杂层、源电极和漏电极；所述保护层开设有与所述导电沟道适配的开口。
- 根据权利要求9所述的显示装置，所述第一开关感光器件和所述第二开关感光器件为薄膜晶体管器件。
- 一种显示装置的屏幕亮度自动调节方法，其中，所述显示装置包括：控制组件；显示面板，具有显示区域和非显示区域；第一开关感光器件，设置于所述显示面板的非显示区域；以及，第二开关感光器件，设置于所述显示面板的显示区域；所述方法包括：所述第一开关感光器件将环境的光强转化为第一电信号，所述第二开关感光器件将显示器内部的光强和所述环境的光强转化为第二电信号；将所述第二电信号和所述第一电信号做差值；所述控制组件根据所述第一电信号和所述差值自动调节所述显示面板的显示亮度。
- 根据权利要求14所述的显示装置的屏幕亮度自动调节方法，其中，所述显示装置还包括信号处理器；所述将所述第二电信号和所述第一电信号做差值的步骤包括：所述信号处理器分别接收所述第一电信号和所述第二电信号；对所述第一电信号和所述第二电信号做差值处理。
- 根据权利要求14所述的显示装置的屏幕亮度自动调节方法，其中，所述显示面板包括黑矩阵，所述黑矩阵于所述第一开关感光器件和第二开关感光器件的感光部位开设有避让缺口。
- 根据权利要求14所述的显示装置的屏幕亮度自动调节方法，其中，所述第一开关感光器件和所述第二开关感光器件为薄膜晶体管器件。
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