WO2018188187A1 - 一种显示屏的驱动系统以及驱动方法 - Google Patents
一种显示屏的驱动系统以及驱动方法 Download PDFInfo
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- WO2018188187A1 WO2018188187A1 PCT/CN2017/088028 CN2017088028W WO2018188187A1 WO 2018188187 A1 WO2018188187 A1 WO 2018188187A1 CN 2017088028 W CN2017088028 W CN 2017088028W WO 2018188187 A1 WO2018188187 A1 WO 2018188187A1
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- temperature
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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
Definitions
- the present invention relates to the field of display technologies, and in particular, to a driving system and a driving method for a display screen.
- the difference between the display screen and the ambient temperature may cause a large difference in the operating temperature of the display screen, and the change in temperature may cause changes in characteristics such as the mobility of the thin film transistor in the display screen. This in turn causes a change in the brightness of the display.
- the traditional display screen adjusts the pixel voltage in a fixed environment.
- the brightness difference is obvious in different working environments, which affects the display quality.
- the industry usually modifies the video data code according to the measured screen temperature, but this method will reduce the dynamic range of the video data.
- the technical problem to be solved by the present invention is to provide a driving system and a driving method for a display screen, which can effectively prevent the brightness of the display screen from changing with temperature changes, and ensure display quality.
- a technical solution adopted by the present invention is to provide a driving system for a display screen, including:
- a temperature detecting circuit that detects the temperature of the display area of the display screen
- a compensation calculation circuit coupled to the temperature detection circuit to calculate a display voltage compensation control signal of the temperature
- a data driving circuit coupled to the compensation calculation circuit to generate a display voltage signal matching the display voltage compensation control signal, and transmitting the signal to the display screen
- the compensation calculation circuit includes a sequential control TCON circuit, a gamma selection circuit, and a gamma production circuit.
- the timing control TCON circuit is coupled to the temperature detection circuit, and the gamma production circuit is coupled.
- the temperature detecting circuit includes:
- a measuring unit configured to measure a temperature value of at least one pixel on the display screen
- a calculation unit coupled to the compensation calculation circuit, configured to calculate an average value of the temperature values of the at least one pixel.
- a driving system for a display screen including:
- a temperature detecting circuit that detects the temperature of the display area of the display screen
- a compensation calculation circuit coupled to the temperature detection circuit to calculate a display voltage compensation control signal of the temperature
- the data driving circuit is coupled to the compensation calculation circuit to generate a display voltage signal that matches the display voltage compensation control signal and is sent to the display screen.
- another technical solution adopted by the present invention is to provide a driving method for a display screen, including:
- a display voltage signal matching the display voltage compensation control signal is generated and transmitted to the display screen.
- the invention has the beneficial effects that: by measuring the temperature of the display area of the display screen, calculating the display voltage compensation control signal of the temperature, generating a display voltage matching the display voltage compensation control signal, and transmitting the display voltage to the display screen, which can effectively avoid the display screen
- the brightness changes with the temperature to ensure the display quality
- the temperature measurement position is located in the display area of the display screen, which can well reflect the temperature environment in the screen and improve the accuracy of the measurement results.
- FIG. 1 is a schematic structural view of an embodiment of a driving system for a display screen of the present invention
- FIG. 2 is a schematic structural view of another embodiment of a driving system of a display screen of the present invention.
- Figure 3 is a schematic view of the drive system of the embodiment of Figure 2 when the display screen is driven;
- FIG. 4 is a schematic flow chart of an embodiment of a driving method of a display screen according to the present invention.
- step S400 is a schematic flow chart of step S400 in another embodiment of a driving method of a display screen according to the present invention.
- step S500 is a schematic flow chart of step S500 in another embodiment of a driving method of a display screen according to the present invention.
- FIG. 7 is a schematic flow chart of step S520 in another embodiment of the driving method of the display screen of the present invention.
- FIG. 1 is a schematic structural diagram of an embodiment of a driving system for a display screen according to the present invention.
- the system includes a temperature detecting circuit 100, a compensation calculating circuit 200, and a data driving circuit 300.
- the temperature detecting circuit 100 detects the temperature of the display area of the display screen.
- the temperature detecting circuit 100 measures the temperature of the central portion of the display area.
- the temperature around the display area may be measured, or the detected position is evenly distributed on the display.
- the screen is displayed in the area.
- the specific measurement location can be set by the designer by experience so as to be able to typically reflect the temperature of the display screen. After the temperature of the display screen is measured, the measured temperature is calculated accordingly, for example, the highest temperature or the lowest temperature or the average temperature in the display area is calculated.
- the compensation calculation circuit 200 is coupled to the temperature detection circuit 100 and calculates a display voltage compensation control signal that the temperature detection circuit 100 detects the temperature.
- the compensation calculation circuit 200 calculates the display voltage compensation control signal of the temperature according to a formula or an algorithm, and the formula or algorithm can be passed by the designer. Experience or a large number of experimental summaries.
- the data driving circuit 300 is coupled to the compensation calculation circuit 200 to generate a display voltage signal that matches the display voltage compensation control signal and is sent to the display screen.
- the data driving circuit 300 After the compensation calculation circuit 200 calculates the display voltage compensation control signal, the data driving circuit 300 generates a display voltage signal that matches the display voltage compensation control signal, specifically, a display screen whose brightness becomes higher as the temperature of the display screen rises.
- the display voltage signal is inversely proportional to the temperature measured in the temperature detecting circuit 100, that is, the higher the temperature detected in the temperature detecting circuit 100, the lower the display voltage signal generated in the data driving circuit 300;
- the display voltage signal is proportional to the temperature measured in the temperature detecting circuit 100, that is, the higher the temperature detected in the temperature detecting circuit 100, the data driving circuit 300 is higher in the display screen in which the temperature of the display screen is lowered.
- the display generated in the display shows the higher the voltage signal.
- the display screen receives the display voltage signal and performs corresponding brightness adjustment. Specifically, when the received display voltage signal becomes low, the brightness of the display screen is lowered, and when the received display voltage signal becomes high, the brightness of the display screen is improved. When the received display voltage signal is unchanged, the brightness of the display screen is kept unchanged, thereby effectively preventing the brightness of the display screen from changing with the change of the temperature, or effectively reducing the variation range of the display brightness, improving the display effect, and ensuring the display quality. .
- the driving system in the above embodiment can drive not only the liquid crystal display but also the organic light emitting display or other display, which is not limited herein.
- the temperature detecting circuit 100 specifically includes: a measuring unit 110 and a calculating unit 120.
- the measuring unit 110 includes at least one measuring component, such as a temperature sensor, for measuring a temperature value of at least one pixel on the display screen.
- a temperature sensor for measuring a temperature value of at least one pixel on the display screen.
- the number of measuring components and the measured position can be designed and adjusted as needed.
- the calculating unit 120 is coupled to the measuring unit 110 for calculating an average value of temperature values of at least one pixel. It can be appreciated that in other embodiments, computing unit 120 can also calculate the highest or lowest temperature of at least one pixel temperature.
- the compensation calculation circuit 200 specifically includes a timing control TCON circuit 210, a gamma selection circuit 220, and a gamma production circuit 230.
- the timing control TCON circuit 210 is coupled to the computing unit 120.
- the gamma production circuit 230 is coupled to the data driving circuit 300.
- the timing control TCON circuit 210, the gamma selecting circuit 220, and the gamma producing circuit 230 are sequentially coupled.
- the gamma selection circuit 220 includes:
- the association holding unit 221 is configured to store a correspondence relationship between the pre-divided temperature interval and the gamma voltage associated with the temperature interval.
- Pre-divide the temperature range according to the requirements for example, divide the temperature of the display screen into 0 ⁇ 20°C, 20 ⁇ 40°C and 40 ⁇ 60°C, and set the gamma voltage corresponding to each temperature interval, specifically, because For a display screen whose brightness becomes higher as the temperature rises, when the temperature of the display screen is too high, it is necessary to reduce the brightness of the display screen, to avoid the problem of excessive brightness caused by high temperature and excessive speed of life decay, and display When the temperature of the screen is too low, it is necessary to compensate for the brightness loss caused by the temperature being too low.
- the gamma voltage corresponding to 40 to 60 ° C is set to a low value, and the gamma corresponding to 20 to 40 ° C is set.
- the voltage is set to a median value, and the gamma voltage corresponding to 0 to 20 ° C is a high value, and the associated storage unit 221 stores the correspondence between the temperature interval and the gamma voltage associated with the temperature interval in a lookup table.
- the low value, the median value and the high value mentioned here are relative concepts.
- the relationship between the temperature interval and the gamma is inversely proportional, that is, the higher the temperature, the lower the gamma voltage corresponding to the setting. .
- the divided temperature intervals may need to be specifically set and can be refined into multiple groups.
- the search voltage unit 222 is coupled to the timing control TCON circuit 210 and the associated storage unit 221 for searching the temperature interval calculated by the matching calculation unit 120 in the association holding unit 221 according to the timing control signal generated by the timing control TCON circuit 210. And then find the gamma voltage corresponding to the temperature interval.
- the gamma production circuit 230 is coupled to the lookup voltage unit 222 for generating the found gamma voltage as a display voltage compensation control signal.
- the data driving circuit 300 is coupled to the gamma production circuit 230, receives the display voltage compensation control signal, generates a display voltage signal that matches the display voltage compensation control signal, and transmits the display voltage signal to the display screen.
- the display voltage signal is inversely proportional to the measured display screen temperature, that is, the higher the measured temperature, the lower the output display voltage signal.
- the display screen receives the display voltage signal and performs corresponding brightness adjustment. Specifically, when the received display voltage signal becomes high, the brightness of the display screen is increased, and when the received display voltage becomes low, the brightness of the display screen is lowered, when receiving When the display voltage signal is unchanged, the brightness of the display screen is kept unchanged, thereby improving the display effect, effectively preventing the brightness of the display screen from changing with temperature changes, and ensuring display quality.
- FIG. 3 is a schematic diagram of the driving system of the embodiment of FIG. 2 when the display screen is driven.
- the measuring component 111 in the measuring unit 110 measures the temperature of at least one pixel point on the display screen 400, so that the calculating unit 120 calculates an average value of the temperature values of the at least one pixel point, thereby generating a corresponding correspondence by the compensation calculating circuit 200.
- the gamma voltage of the temperature of the display screen 400 is used as the display voltage compensation control signal, and the driving circuit 300 outputs a display voltage signal to the display screen 400 according to the display voltage compensation control signal, and the display screen 400 performs corresponding adjustment according to the display voltage signal.
- FIG. 4 is a schematic flowchart diagram of an embodiment of a driving method of a display screen according to the present invention. The method includes:
- S400 Detects the temperature of the display area of the display screen.
- step S400 specifically includes:
- S410 Measure a temperature value of at least one pixel on the display screen.
- the temperature of at least one pixel on the display screen is measured by the measuring component, and the number of measuring components and the measuring position are set according to specific conditions, and no limitation is imposed here.
- S420 Calculate an average value of temperature values of the at least one pixel.
- the average value of the measured temperatures in step S410 is calculated.
- step S420 can also calculate the highest value or the lowest value of the temperature value of at least one pixel.
- step S500 specifically includes:
- S520 Find a gamma voltage corresponding to the temperature according to the timing control signal.
- step S520 specifically includes:
- S521 Find a temperature interval that matches the temperature in a pre-stored temperature interval.
- the stored temperature interval is pre-divided.
- the temperature of the display screen can be divided into 5 to 20 ° C, 20 to 35 ° C, 35 to 50 ° C, and 50 ° C to 65 ° C.
- the timing control signal the temperature interval matching the measured temperature is searched in the saved temperature interval.
- the gamma voltage corresponding to the temperature interval is preset, for example, in the embodiment, for the display screen whose brightness becomes higher as the temperature rises, when the temperature of the display screen is too high, the display screen needs to be lowered.
- the brightness is high, and the problem of excessive brightness caused by high temperature and excessive decay of life is avoided.
- the temperature of the display is too low, it is necessary to compensate for the brightness loss caused by the temperature being too low.
- the temperature of the display screen is divided into 5 ⁇ After 20°C, 20 ⁇ 35°C, 35 ⁇ 50°C, and 50°C ⁇ 65°C, set the gamma voltage corresponding to 50°C ⁇ 65°C to a low value, and set the gamma voltage corresponding to 35 ⁇ 50°C to the median value.
- the gamma voltage corresponding to 20 ⁇ 35°C is set to a medium high value
- the gamma voltage corresponding to 5 ⁇ 20°C is set to a high value
- the correspondence between the divided temperature interval and the gamma voltage corresponding to the temperature interval is set. Relationships are saved in the form of lookup tables.
- the low value, the median value, the medium high value, and the high value mentioned herein are relative concepts. It can be understood that the relationship between the temperature interval and the gamma is inversely proportional, that is, the higher the temperature, the corresponding gamma is set. The lower the voltage. At the same time, the divided temperature intervals may need to be specifically set and can be refined into multiple groups.
- S530 Generate the gamma voltage as the display voltage compensation control signal.
- the gamma voltage After finding the gamma voltage corresponding to the measured temperature, the gamma voltage is generated and used as the display voltage compensation control signal.
- S600 Generate a display voltage signal that matches the display voltage compensation control signal, and send the signal to the display screen.
- a display voltage matching the display voltage compensation control signal is generated and sent to the display screen.
- the measured temperature is inversely proportional to the delivered display voltage, that is, the higher the measured temperature, the lower the display voltage delivered to the display screen.
- the corresponding brightness is adjusted. Specifically, when the received display voltage becomes high, the brightness of the display screen is increased, and when the received display voltage becomes lower, the brightness of the display screen is lowered, when receiving When the display voltage signal is unchanged, the brightness of the display screen is kept unchanged, thereby effectively preventing the brightness of the display screen from changing with temperature changes, thereby ensuring display quality.
- the driving method of the display screen in the present invention is the driving method of the driving system to the display screen in the above embodiment.
- the invention can calculate the display voltage compensation control signal of the temperature by measuring the temperature of the display area of the display screen, and generate a display voltage matching the display voltage compensation control signal to the display screen, which can effectively avoid the display screen.
- the brightness changes with the temperature to ensure the display quality; on the other hand, the temperature measurement position is located in the display area, which can well reflect the temperature environment in the screen and improve the accuracy of the measurement results.
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Abstract
一种显示屏（400）的驱动系统以及驱动方法，该驱动系统包括：温度检测电路（100），检测显示屏显示区域的温度（S400）；补偿计算电路（200），耦接温度检测电路（100），计算得到温度的显示电压补偿控制信号（S500）；数据驱动电路（300），耦接补偿计算电路（200），生成匹配显示电压补偿控制信号的显示电压信号，并向显示屏输送（S600）。通过上述的驱动系统，能够有效避免显示屏的亮度随温度的变化而变化，保证显示质量。
Description
【技术领域】
本发明涉及显示技术领域，特别是涉及一种显示屏的驱动系统以及驱动方法。
【背景技术】
在显示装置正常显示的过程中，显示画面的不同和所处环境温度的差异会导致显示屏的工作温度有较大差异，而温度的变化会导致显示屏中薄膜晶体管迁移率等特性的变化，进而导致显示屏亮度的变化。
传统的显示屏对像素电压的设定是在一个固定环境下调节确定的，不同工作环境下亮度差异明显，进而影响显示质量。为了确保显示屏的亮度不随温度的变化而变化，业界通常会根据测量的屏体温度来修改视频数据代码，但是这种方式会降低视频数据的动态范围。
基于此，如何解决现有技术中显示屏因屏体温度变化而造成亮度出现变化的问题，成为本领域的技术人员亟待解决的一个技术问题。
【发明内容】
本发明主要解决的技术问题是提供一种显示屏的驱动系统以及驱动方法，能够有效避免显示屏的亮度随温度的变化而变化，保证显示质量。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种显示屏的驱动系统，包括：
温度检测电路，检测显示屏显示区域的温度；
补偿计算电路，耦接所述温度检测电路，计算所述温度的显示电压补偿控制信号；
数据驱动电路，耦接所述补偿计算电路，生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送，
其中，所述补偿计算电路包括依序耦接的时序控制TCON电路、伽马选择电路以及伽马生产电路，所述时序控制TCON电路耦接所述温度检测电路，所述伽马生产电路耦接所述数据驱动电路；
所述温度检测电路包括：
测量单元，用于测量所述显示屏上至少一个像素点的温度值；
计算单元，耦接所述补偿计算电路，用于计算所述至少一个像素点的温度值的平均值。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种显示屏的驱动系统，包括：
温度检测电路，检测显示屏显示区域的温度；
补偿计算电路，耦接所述温度检测电路，计算所述温度的显示电压补偿控制信号；
数据驱动电路，耦接所述补偿计算电路，生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送。
为解决上述技术问题，本发明采用的再一个技术方案是：提供一种显示屏的驱动方法，包括：
检测显示屏显示区域的温度；
计算所述温度的显示电压补偿控制信号；
生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送。
本发明的有益效果是：通过测量显示屏显示区域的温度，计算该温度的显示电压补偿控制信号，生成匹配该显示电压补偿控制信号的显示电压，并向显示屏输送，能够有效避免显示屏的亮度随温度的变化而变化，保证显示质量，同时温度测量位置位于显示屏的显示区域内，能够很好地反映屏体中的温度环境，提高测量结果的准确性。
【附图说明】
图1是本发明显示屏的驱动系统一实施例的结构示意图；
图2是本发明显示屏的驱动系统另一实施例的结构示意图；
图3是图2实施例中的驱动系统在驱动显示屏时的示意图；
图4是本发明显示屏的驱动方法一实施例的流程示意图；
图5是本发明显示屏的驱动方法另一实施例中步骤S400的流程示意图；
图6是本发明显示屏的驱动方法另一实施例中步骤S500的流程示意图；
图7是本发明显示屏的驱动方法另一实施例中步骤S520的流程示意图。
【具体实施方式】
请参阅图1，图1是本发明显示屏的驱动系统一实施例的结构示意图，该系统包括：温度检测电路100、补偿计算电路200以及数据驱动电路300。
温度检测电路100，检测显示屏显示区域的温度。
可选地，在本实施例中，温度检测电路100对显示区域内中央部分的温度进行测量，当然，在其他实施例中，也可以测量显示区域内四周的温度，或者检测位置均匀分布在显示屏显示区域内。具体地，可由设计者通过经验设定具体的测量位置，以便能够典型地反映显示屏的温度。当测量出显示屏的温度后，再对测量的温度进行相应的计算，如，计算出显示区域内的最高温度或最低温度或平均温度。
补偿计算电路200，耦接温度检测电路100，计算温度检测电路100检测出温度的显示电压补偿控制信号。
当温度检测电路100检测出显示屏显示区域的温度后，补偿计算电路200根据公式或算法，以温度作为参数，计算得到该温度的显示电压补偿控制信号，具体地，公式或算法可由设计者通过经验或大量实验总结得到。
数据驱动电路300，耦接补偿计算电路200，生成匹配该显示电压补偿控制信号的显示电压信号，并输送给显示屏。
当补偿计算电路200计算出显示电压补偿控制信号后，数据驱动电路300生成匹配该显示电压补偿控制信号的显示电压信号，具体地，对于亮度随着显示屏的温度升高而变高的显示屏而言，该显示电压信号与温度检测电路100中测量的温度为反比关系，即温度检测电路100中检测出的温度越高，数据驱动电路300中生成的显示电压信号越低；而对于亮度随着显示屏的温度升高而变低的显示屏而言，该显示电压信号与温度检测电路100中测量的温度为正比关系，即温度检测电路100中检测出的温度越高，数据驱动电路300中生成的显示显示电压信号越高。
显示屏接收该显示电压信号，进行相应的亮度调节，具体地，当接收的显示电压信号变低时，降低显示屏的亮度，当接收的显示电压信号变高时，提高显示屏的亮度，当接收的显示电压信号不变时，则保持显示屏的亮度不变，从而有效避免显示屏的亮度随着温度的变化而变化，或者有效降低显示屏亮度的变化幅度，改善显示效果，保证显示质量。
上述实施例中的驱动系统不仅可以驱动液晶显示屏，还可以驱动有机发光显示屏或其他显示屏，在此不做限制。
请参阅图2，在本发明显示屏的驱动系统的另一实施例中，温度检测电路100具体包括：测量单元110以及计算单元120。
测量单元110中包括至少一个测量元件，如温度传感器，用于测量显示屏上至少一个像素点的温度值。其中，测量元件的数量及测量的位置可以根据需要设计及调整。
计算单元120，耦接测量单元110，用于计算至少一个像素点的温度值的平均值。可以理解的是，在其他实施例中，计算单元120也可以计算至少一个像素点温度中的最高温度或最低温度。
补偿计算电路200具体包括：时序控制TCON电路210、伽马选择电路220以及伽马生产电路230。
时序控制TCON电路210耦接计算单元120，伽马生产电路230耦接数据驱动电路300，时序控制TCON电路210、伽马选择电路220以及伽马生产电路230依序耦接。
具体地，伽马选择电路220包括：
关联保存单元221，用于保存预先划分的温度区间和与温度区间相关联的伽马电压之间的对应关系。
根据需求预先划分好温度区间，例如将显示屏的温度划分为0~20℃、20~40℃以及40~60℃，并设置好与每个温度区间相对应的伽马电压，具体地，因为对于亮度随着温度升高而变高的显示屏而言，当显示屏的温度过高时，需要降低显示屏的亮度，避免高温导致的亮度过高以及寿命衰减速度过快的问题，而显示屏的温度过低时，需要补偿因温度过低导致的亮度损失，因此，在本实施例中，将40~60℃对应的伽马电压设置为低值，将20~40℃对应的伽马电压设置为中值，将0~20℃对应的伽马电压为高值，关联保存单元221将温度区间和与温度区间相关联的伽马电压之间的对应关系以查找表的方式进行保存。需要说明的是，此处所说的低值、中值、高值为相对概念，可以理解为温度区间与伽马之间的关系为反比关系，即温度越高，对应设置的伽马电压越低。同时，划分的温度区间可以需要具体需要设定，可以细化为多组。
查找电压单元222，耦接时序控制TCON电路210以及关联保存单元221，用于根据时序控制TCON电路210产生的时序控制信号，在关联保存单元221内查找匹配计算单元120所计算出温度的温度区间，进而找出温度区间对应的伽马电压。
同时，伽马生产电路230耦接查找电压单元222，用于生成查找出的伽马电压，以作为显示电压补偿控制信号。
进而，数据驱动电路300耦接伽马生产电路230，接收该显示电压补偿控制信号，生成匹配该显示电压补偿控制信号的显示电压信号，并向显示屏输送。具体地，在本实施例中，该显示电压信号与测量出的显示屏温度为反比关系，即测量出的温度越高，输出的显示电压信号越低。
显示屏接收该显示电压信号，进行相应的亮度调节，具体地，当接收的显示电压信号变高时，提高显示屏的亮度，当接收的显示电压变低时，降低显示屏的亮度，当接收的显示电压信号不变时，保持显示屏的亮度不变，从而改善显示效果，有效避免显示屏的亮度随着温度的变化而变化，保证显示质量。
请参阅图3，图3是图2实施例的驱动系统在驱动显示屏时的示意图。
具体地，测量单元110中的测量元件111对显示屏400上至少一个像素点的温度进行测量，以便计算单元120计算出至少一个像素点的温度值的平均值，从而经过补偿计算电路200生成对应显示屏400温度的伽马电压，以作为显示电压补偿控制信号，驱动电路300再根据该显示电压补偿控制信号输出显示电压信号给显示屏400，显示屏400根据该显示电压信号进行相应的调节。
请参阅图4，图4是本发明显示屏的驱动方法一实施例的流程示意图，该方法包括：
S400：检测显示屏显示区域的温度。
利用测量元件测量显示屏中显示区域的温度，请参阅图5，在本发明显示屏的驱动方法另一实施例中，步骤S400具体包括：
S410：测量所述显示屏上至少一个像素点的温度值。
利用测量元件测量显示屏上至少一个像素点的温度，测量元件的个数及测量位置根据具体情况设定，在此不做限制。
S420：计算所述至少一个像素点的温度值的平均值。
计算出步骤S410中测量温度的平均值。
可以理解的是，在本发明显示屏的驱动方法又一实施例中，步骤S420也可以计算出至少一个像素点的温度值的最高值或最低值。
S500：计算所述温度的显示电压补偿控制信号。
根据步骤S400中检测出的温度，计算出该温度的显示电压补偿控制信号。请参阅图6，在本发明显示屏的驱动方法另一实施例中，步骤S500具体包括：
S510：生成时序控制信号。
S520：根据所述时序控制信号，找出与所述温度对应的伽马电压。
请参阅图7，在本发明显示屏的驱动方法另一实施例中，步骤S520又具体包括：
S521：在预先保存的温度区间内查找匹配所述温度的温度区间,。
其中，保存的温度区间预先划分，例如，可将显示屏的温度划分为5~20℃、20~35℃、35~50℃以及50℃~65℃。根据时序控制信号，在保存的温度区间内查找匹配测量温度的温度区间。
S522：找出所述温度区间对应的伽马电压。
在查找出匹配测量温度的温度区间后，找出该温度区间对应的伽马电压。
其中，与温度区间对应的伽马电压预先设置，例如，在本实施例中，对于亮度随着温度升高而变高的显示屏而言，当显示屏的温度过高时，需要降低显示屏的亮度，避免高温导致的亮度过高以及寿命衰减速度过快的问题，而显示屏的温度过低时，需要补偿因温度过低导致的亮度损失，因此在显示屏的温度被划分为5~20℃、20~35℃、35~50℃以及50℃~65℃后，将50℃~65℃对应的伽马电压设置为低值，将35~50℃对应的伽马电压设置为中值，将20~35℃对应的伽马电压设置为中高值，将5~20℃对应的伽马电压设置成高值，并将划分的温度区间和与温度区间对应的伽马电压之间的对应关系以查找表的方式进行保存。需要说明的是，此处所说的低值、中值、中高值、高值为相对概念，可以理解为温度区间与伽马之间的关系为反比关系，即温度越高，对应设置的伽马电压越低。同时，划分的温度区间可以需要具体需要设定，可以细化为多组。
S530：生成所述伽马电压，以作为所述显示电压补偿控制信号。
在找出测量温度对应的伽马电压后，生成该伽马电压，并将该伽马电压作为显示电压补偿控制信号。
S600：生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送。
生成匹配该显示电压补偿控制信号的显示电压后向显示屏输送。具体地，在本实施例中，测量的温度与输送的显示电压为反比关系，即测量的温度越高，向显示屏输送的显示电压越低。显示屏接收输送的显示电压后，进行相应亮度的调节，具体地，当接收的显示电压变高时，提高显示屏的亮度，当接收的显示电压变低时，降低显示屏的亮度，当接收的显示电压信号不变时，则保持显示屏的亮度不变，从而有效避免显示屏的亮度随着温度的变化而变化，保证显示质量。
本发明中显示屏的驱动方法为上述实施例中的驱动系统对显示屏的驱动方法，具体的驱动系统可参见上述实施例，在此不做赘述。
区别于现有技术，本发明一方面通过测量显示屏显示区域的温度，计算该温度的显示电压补偿控制信号，生成匹配该显示电压补偿控制信号的显示电压向显示屏输送，能够有效避免显示屏的亮度随着温度的变化而变化，保证显示质量；另一方面温度测量位置位于显示区域内，能够很好地反映屏体中的温度环境，提高测量结果的准确性。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
Claims (13)
- 一种显示屏的驱动系统，其中，包括：温度检测电路，检测显示屏显示区域的温度；补偿计算电路，耦接所述温度检测电路，计算所述温度的显示电压补偿控制信号；数据驱动电路，耦接所述补偿计算电路，生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送，其中，所述补偿计算电路包括依序耦接的时序控制TCON电路、伽马选择电路以及伽马生产电路，所述时序控制TCON电路耦接所述温度检测电路，所述伽马生产电路耦接所述数据驱动电路；所述温度检测电路包括：测量单元，用于测量所述显示屏上至少一个像素点的温度值；计算单元，耦接所述补偿计算电路，用于计算所述至少一个像素点的温度值的平均值。
- 如权利要求1所述的驱动系统，其中，所述伽马选择电路包括：关联保存单元，用于保存预先划分的温度区间和与所述温度区间相关联的伽马电压之间的对应关系；查找电压单元，耦接所述时序控制TCON电路、所述关联保存单元，用于在所述的关联保存单元内查找匹配所述温度的温度区间，进而找出所述温度区间对应的伽马电压；同时，所述伽马生产电路耦接所述查找电压单元，用于生成所述伽马电压，以作为所述显示电压补偿控制信号。
- 如权利要求1所述的驱动系统，其中，所述生成匹配所述显示电压补偿控制信号的显示电压信号是指，所述温度与所述显示电压信号为反比关系。
- 一种显示屏的驱动系统，其中，包括：温度检测电路，检测显示屏显示区域的温度；补偿计算电路，耦接所述温度检测电路，计算所述温度的显示电压补偿控制信号；数据驱动电路，耦接所述补偿计算电路，生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送。
- 如权利要求4所述的驱动系统，其中，所述补偿计算电路包括依序耦接的时序控制TCON电路、伽马选择电路以及伽马生产电路，所述时序控制TCON电路耦接所述温度检测电路，所述伽马生产电路耦接所述数据驱动电路。
- 如权利要求5所述的驱动系统，其中，所述伽马选择电路包括：关联保存单元，用于保存预先划分的温度区间和与所述温度区间相关联的伽马电压之间的对应关系；查找电压单元，耦接所述时序控制TCON电路、所述关联保存单元，用于在所述的关联保存单元内查找匹配所述温度的温度区间，进而找出所述温度区间对应的伽马电压；同时，所述伽马生产电路耦接所述查找电压单元，用于生成所述伽马电压，以作为所述显示电压补偿控制信号。
- 如权利要求4所述的驱动系统，其中，所述温度检测电路包括：测量单元，用于测量所述显示屏上至少一个像素点的温度值；计算单元，耦接所述补偿计算电路，用于计算所述至少一个像素点的温度值的平均值。
- 如权利要求4所述的驱动系统，其中，所述生成匹配所述显示电压补偿控制信号的显示电压信号是指，所述温度与所述显示电压信号为反比关系。
- 一种显示屏的驱动方法，其中，包括：检测显示屏显示区域的温度；计算所述温度的显示电压补偿控制信号；生成匹配所述显示电压补偿控制信号的显示电压信号，并向所述显示屏输送。
- 如权利要求9所述的方法，其中，所述计算所述温度的显示电压补偿控制信号的方法包括：生成时序控制信号；根据所述时序控制信号，找出与所述温度对应的伽马电压；生成所述伽马电压，以作为所述显示电压补偿控制信号。
- 如权利要求10所述的方法，其中，所述根据所述时序控制信号，找出与所述温度对应的伽马电压的方法包括：在预先保存的温度区间内查找匹配所述温度的温度区间；找出所述温度区间对应的伽马电压，其中所述温度区间和与所述温度区间对应的伽马电压预先划分及设置。
- 如权利要求9所述的方法，其中，所述检测显示屏显示区域的温度的方法包括：测量所述显示屏上至少一个像素点的温度值；计算所述至少一个像素点的温度值的平均值。
- 如权利要求9所述的方法，其中，所述生成匹配所述显示电压补偿控制信号的显示电压信号是指，所述温度与所述显示电压信号为反比关系。
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