CN107578748B - Display apparatus and display control method - Google Patents
Display apparatus and display control method Download PDFInfo
- Publication number
- CN107578748B CN107578748B CN201710876200.7A CN201710876200A CN107578748B CN 107578748 B CN107578748 B CN 107578748B CN 201710876200 A CN201710876200 A CN 201710876200A CN 107578748 B CN107578748 B CN 107578748B
- Authority
- CN
- China
- Prior art keywords
- temperature
- transistor
- control signal
- display
- output signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention discloses a display device and a display control method. The display device disclosed by the embodiment of the invention comprises: a display panel, comprising: the transistor comprises a substrate and a first transistor positioned on the substrate; a second transistor for outputting an output signal corresponding to a temperature, wherein a temperature characteristic of the second transistor and a temperature characteristic of the first transistor satisfy a preset condition; and the processing unit is connected with the second transistor and used for determining a control signal corresponding to the current temperature according to the output signal, wherein the control signal is used for controlling the working state of the first transistor.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a display device and a display control method.
Background
Existing displays typically include: temperature detector, temperature controller and display driver.
The temperature detector detects a temperature. And a temperature controller which currently detects the temperature and provides a control signal based on the detected temperature value. The display driver generates a corresponding driving signal based on the control signal to drive the display of the display.
In the prior art, firstly, the temperature detected by the temperature detector may be different from the actual temperature, and the temperature sensitive device in the display may change in sensitivity to the temperature along with aging, and even if the temperature detector detects a precise problem, the temperature detector cannot be directly applied to provide a basis for the control signal for the temperature sensor.
The temperature controller and display driver are typically formed from two separate chips. The two independent wafers are formed, so that the structure of the display is complex on the first aspect, and the hardware cost is high on the second aspect; and, in the third aspect, it is inconvenient to make the display thin and light.
Disclosure of Invention
In view of the above, embodiments of the present invention are directed to a display device and a display control method, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a display device, including:
a display panel, comprising: the transistor comprises a substrate and a first transistor positioned on the substrate;
a second transistor for outputting an output signal corresponding to a temperature, wherein a temperature characteristic of the second transistor and a temperature characteristic of the first transistor satisfy a preset condition;
and the processing unit is connected with the second transistor and used for determining a control signal corresponding to the current temperature according to the output signal, wherein the control signal is used for controlling the working state of the first transistor.
Optionally, the display device further comprises:
a gate driving unit including: and the at least one second transistor is connected with the processing unit and used for outputting a grid signal to the first transistor according to the control signal.
Optionally, the processing unit is specifically configured to detect a voltage and/or a duty ratio of the output signal, determine a current temperature, and obtain a control signal corresponding to the current temperature according to the current temperature and the temperature characteristic.
Optionally, the processing unit is specifically configured to query, according to the current temperature, a control signal corresponding to the current temperature.
Optionally, the processing unit is located on a circuit board;
the display device further includes:
and one end of the connecting unit is connected with the grid driving unit, the other end of the connecting unit is connected to the circuit board, and the output signal is transmitted to the processing unit.
Optionally, the processing unit is specifically configured to determine a control signal of a next display period according to an output signal of a current display period.
In a second aspect, an embodiment of the present invention provides a display control method, applied to a display device, including:
outputting an output signal corresponding to temperature by using a second transistor, wherein the temperature characteristic of the second transistor and the temperature characteristic of the first transistor meet a preset condition;
generating a control signal corresponding to a current temperature based on the output signal;
and controlling the working state of the output of the first transistor by using the control signal.
Optionally, the generating a control signal corresponding to the current temperature based on the output signal includes:
detecting a voltage and/or duty cycle of the output signal;
determining the current temperature according to the voltage and/or duty ratio;
and acquiring a control signal corresponding to the current temperature.
Optionally, the acquiring a control signal corresponding to the current temperature includes:
querying the control signal based on the current temperature.
Optionally, the generating a control signal corresponding to the current temperature based on the output signal includes:
and generating a control signal of the next display period based on the output signal of the current display period and the temperature specific parameter.
The display device and the display control method provided by the embodiment of the invention utilize the output signal of the second transistor with the same or similar temperature characteristic as the first transistor as the control signal for generating the working state of the first transistor, so that the control signal can correspond to the influence degree of the temperature currently acting on the first transistor.
Firstly, the operation is realized without a special temperature sensor and a special temperature control chip, and the function multiplexing of the existing transistor and a processing component for realizing other functions can be utilized, so that the parts of the display equipment are reduced, the structure of the display equipment is simplified, and the lightness and thinness can be conveniently realized;
secondly, the second transistor with the same or similar temperature characteristic as the first transistor is utilized, the influence degree of the current temperature on the second transistor can be accurately reflected, so that accurate control can be realized, the first transistor is in an expected working state, and the display effect of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a driving subunit according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating temperature characteristics of a transistor according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of a display device according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a generation process of a control signal according to an embodiment of the present invention;
fig. 7 is a timing diagram of signals in a gate driving unit according to an embodiment of the invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
As shown in fig. 1, the present embodiment provides a display device including:
a display panel 110, comprising: a substrate and a first transistor 111 located on the substrate;
a second transistor 121 configured to output an output signal corresponding to a temperature, wherein a temperature characteristic of the second transistor 121 and a temperature characteristic of the first transistor 111 satisfy a preset condition;
and a processing unit 130, connected to the second transistor 121, for determining a control signal corresponding to the current temperature according to the output signal, where the control signal is used for controlling the operating state of the first transistor 111.
The display device may comprise a device that displays a screen. The display screen may include one or more display panels 110. In this embodiment, the display device may be an electronic ink display device, or alternatively, the liquid crystal display device.
The display panel 110 may be an array substrate provided with the first transistor 111 array; the first transistor 111 on the array plate can control the display brightness and/or color of the corresponding pixel of the electronic ink. The first transistor 111 on the array plate can also control the degree of deflection of liquid crystal of a corresponding pixel of the liquid crystal display screen, so as to control the display brightness and/or color of the corresponding pixel.
In some embodiments, the temperature characteristic of the first transistor 111 and the temperature characteristic of the second transistor 121 satisfy a preset condition, which may include:
the temperature characteristics of the first transistor 111 and the second transistor 121 are the same, for example, the type and model of the first transistor 111 and the second transistor 121 are the same, and then the temperature characteristics of the first transistor 111 and the second transistor 121 are the same. The temperature characteristic may be: the turn-on voltage of the transistor at different temperatures, the magnitude of the electron mobility of the transistor at different high temperatures, etc. Fig. 4 is a diagram illustrating the variation of electron mobility of a transistor at different temperatures. In fig. 4, the horizontal axis represents temperature, and the vertical axis represents electron mobility. The electron mobility may be in units of cm 2/(v.s).
In other embodiments, the temperature characteristic of the first transistor 111 and the temperature characteristic of the second transistor 121 satisfy a preset condition, which may further include:
the temperature characteristics of the first transistor 111 and the second transistor 121 are similar, indicating that the temperature characteristics of the two transistors or both transistors are very close to each other, and the temperature characteristics are within a predetermined range.
The first transistor 111 is located on the display panel 110 (i.e., on the substrate), and the second transistor 121 is also located on the display panel 110, so that since the first transistor 111 and the second transistor 121 are both located on the display panel 110, the ambient temperatures of the first transistor 111 and the second transistor 121 are the same, and the temperatures applied to the first transistor 111 and the second transistor 121 are also the same, so that the output signal of the second transistor 121 can accurately reflect the effect of the temperature applied to the first transistor 111.
In the embodiment of the present invention, each of the first transistor 111 and the second transistor 121 may be a transparent thin film transistor on the display panel, and the thin film transistor may include a TFT or an IGZO type transistor.
In this embodiment, the substrate may be a transparent substrate, and the substrate may be a glass plate and/or a plastic plate. When the display panel 110 of the display device is a flexible display screen, the substrate is a bendable flexible electrode plate, and generally may be a substrate made of elastic plastic or flexible plastic. If the display device is a non-flexible display device, the substrate may be a glass plate.
In this embodiment, the second transistor 121 may be a plurality of, for example, a plurality of cascaded second transistors 121.
In the present embodiment, the output of the second transistor 121 is connected to the processing unit 130, and the processing unit 130 may be various processing circuits or processors. The processor may include: a central processing unit, a microprocessor, a digital signal processor, an application processor, a programmable array, an application specific integrated circuit, or other integrated chips or circuits, etc., may obtain the current temperature according to the output signal of the second transistor 121, and determine the signal of the first transistor 111 corresponding to the current temperature. In some embodiments, if the first transistor 111 is a field effect transistor (MOS), the control signal may be a gate signal input to a gate of the MOS, or a turn-on signal for generating the gate signal, etc.
In this embodiment, the processing unit 130 may be located on the display panel 110, or may be located outside the display panel 110. For example, the processing unit 130 may be located on a circuit board connected to the display panel 110. For example, the display device further includes:
a Printed Circuit Board (PCB) on which the processing unit 130 is located.
The display panel 110 is connected to the PCB through a flexible circuit board (FPC) or the like.
In summary, the output signal of the second transistor 121 may be transmitted to the processing unit 130, and the processing unit 130 may generate a corresponding control signal according to the output signal.
For example, the processing unit 130 may determine a current temperature according to the output signal, query a temperature characteristic of the first transistor 111 according to the current temperature, and combine the temperature characteristic and the current temperature to determine the control signal.
For another example, the processing unit 130 queries a correspondence relationship between the output signal and a control signal according to the output signal, and outputs the control signal based on the correspondence relationship. Here, the correspondence relationship between the output signal and the control signal reflects the temperature characteristic of the first transistor 111, or is predetermined based on the temperature characteristic of the first transistor 111.
The control signal may be a turn-on signal of the first transistor 111 to control whether the gate of the first transistor 111 is turned on, and/or the control signal may be a signal to control a state parameter of the first transistor 111, where the state parameter may be a parameter such as electron mobility and/or a gate voltage or current.
In the present embodiment, the output of the second transistor 121 having the same or similar temperature characteristics as the first transistor 111 is used to determine the control signal for turning on the first transistor 111, firstly, the temperature is detected without a dedicated temperature sensor, secondly, the effect of the temperature on the transistor may not be accurately reflected when the dedicated temperature sensor detects the temperature, and thirdly, the temperature sensor is usually disposed close to the first transistor 111 without any means, so that the temperature detected by the temperature sensor and the temperature actually acting on the first transistor 111 are greatly different. Therefore, in the embodiment, the processing unit 130 substantially obtains an output signal accurately reflecting the current temperature acting on the first transistor 111 and the action condition of the current temperature on the first transistor 111, such as the action amplitude, etc., so as to derive the current temperature acting on the first transistor 111 according to the output signal, and then obtain the control signal for accurately controlling the first transistor 111 according to the current temperature, or obtain the control signal adapted to the current temperature directly according to the corresponding relationship between the output signal and the control signal, so as to provide the control signal for accurately controlling the first transistor 111. In this way, the problem that the display failure and/or the display effect is poor due to the change of the operating parameter of the first transistor 111 caused by the temperature drift of the display panel 110 can be effectively reduced, so that the display effect of the display panel 110 is improved.
Meanwhile, in this embodiment, a dedicated temperature sensor is not used, and a temperature control chip connected to the temperature sensor is not specially provided, and the processor or the processing circuit related to the processing unit 130 may be a processor or a processing circuit capable of processing other functions in the display device, for example, a display controller, etc., so that the number of components in the display device may be reduced, the number of hardware of the display device may be simplified, and the hardware cost may be reduced.
Optionally, as shown in fig. 2, the display device further includes:
the gate driving unit 120 includes: at least one of the second transistors 121 is connected to the processing unit 130, and is configured to output a gate signal to the first transistor 111 according to the control signal.
The gate driving unit 120 may be a driving circuit for providing a gate signal or a driving signal to the gate of the first transistor 111 on the display panel 110. In this embodiment, the gate driving unit 120 may be located on the polar substrate. The second transistor 121 transmits the output signal to a processing unit 130, and the processing unit 130 transmits a control signal to a driving Integrated Chip (IC).
In this embodiment, the second transistor 121 is a transistor constituting the gate driving circuit.
The gate driving unit 120 may be formed by connecting a plurality of transistors.
Fig. 3 shows a driving subunit of the gate driving unit 120, and the circuit shown in fig. 3 includes transistors: m1, M2, M3, M4, M5, M6, and MD, which may be one of the second transistors 121. In this embodiment, the second transistor 121 is preferably a transistor MD that outputs a signal Gout. The Gout is a gate signal of the first transistor 111 in one row of the display panel 110 and is also an input signal of the MD of the next driving subunit. Both CK and CKB shown in fig. 3 can be a predetermined periodically varying signal. In fig. 3, SET is the turn-on pin of the transistor MD, the RESET is the turn-on pin of the transistor M1, and the input signal of the driving subunit is DIR 1; the gate driving unit is configured to drive the first transistor 111 with a signal Gout.
In this embodiment, the output signal of the second transistor 121 in the gate driving unit 120 is directly utilized to be input to the processing unit 130, so that a dedicated transistor does not need to be added on the display panel 110, and thus the display panel has the characteristic of strong compatibility with the prior art, and the gate driving unit 120 not only realizes gate driving, but also is multiplexed into a temperature detection structure, thereby realizing multiplexing of one structure, and having the characteristic of delicate structure.
In some embodiments, the gate driving unit 120 includes a plurality of cascaded driving sub-units, and in this embodiment, the control signal may be an input signal of a first driving sub-unit in the gate driving unit 120, and an output signal of the first driving sub-unit is used to control the gate of the first transistor 111 in a predetermined row number to be turned on; while the output signal of the first drive subunit is also the output signal of the next drive subunit. That is, the gate driving unit 120 includes N driving sub-units, the output signal of the nth driving sub-unit is the input signal of the (N + 1) th driving sub-unit, and N is a positive integer smaller than N; and N is a positive integer.
In this embodiment, optionally, the output signal of the second transistor 121, i.e., the signal input into the processing unit 130, may be the output signal of the last driving subunit in the gate driving unit 120. Therefore, the current temperature offset may affect the first transistor 111 and the second transistor 121, and in order to accurately detect the temperature drift, the cascade connection of the plurality of driving sub-units may accumulate and amplify the effect of the temperature offset on the transistors, so that the output signal finally output to the processing unit 130 is obviously changed, thereby avoiding the problem of poor display caused by the fact that the control signal is not timely adjusted when the output signal of the second transistor 121, which is not obviously output due to the temperature change, is not obvious, thereby facilitating the processing unit 130 to accurately and sensitively obtain the current temperature condition on the one hand, and on the other hand, the accurate and sensitive control signal may improve the display effect of the display panel 110.
Optionally, the processing unit 130 is specifically configured to detect a voltage and/or a duty ratio of the output signal, determine a current temperature, and obtain a control signal corresponding to the current temperature according to the current temperature and the temperature characteristic.
In this embodiment, the processing unit 130 detects the voltage and/or duty ratio of the output signal, where the voltage may be an average voltage within a predetermined time window. The duty cycle may be a ratio of the duration of the high level within a predetermined time window relative to the duration of the predetermined time window. The high level may be a level higher than a reference level. Typically, the reference level may be a level with a voltage of 0V.
In this embodiment, the current temperature may be accurately obtained according to the voltage and/or duty ratio of the output signal, in combination with the temperature characteristics of the first transistor 111 and/or the second transistor 121, and a control signal corresponding to the current temperature is generated according to the current temperature and the temperature characteristics, and then the control signal is directly or indirectly applied to the first transistor 111, so that the turn-on or turn-on of the first transistor 111 controls the display of each pixel on the display panel 110.
In some embodiments, the processing unit 130 is specifically configured to query a control signal corresponding to the current temperature according to the current temperature.
In this way, the display device includes a memory, the memory stores the control signal corresponding to the temperature, and the current temperature is used as a query basis or a retrieval basis to query the corresponding relationship between the temperature and the control signal, so that the control signal which is adapted to the current temperature and well displayed by the control display panel 110 can be found.
Optionally, the processing unit 130 is located on a circuit board; the circuit board can be the PCB
The display device further includes:
and a connection unit, one end of which is connected to the gate driving unit 120 and the other end of which is connected to the circuit board, and transmits the output signal to the processing unit 130. The connection unit herein may include: the FPC may be other types of connection lines or connectors.
In this embodiment, the processing unit 130 receives the output signal through a connection unit, and in some embodiments, the processing unit 130 further inputs the control signal to the display panel 110 by using the connection unit.
Optionally, the processing unit 130 is specifically configured to determine a control signal of a next display period according to an output signal of a current display period.
In this embodiment, the processing unit 130 obtains the output signal of the second transistor 121 in the current display period, and obtains a control signal for controlling the display of the display panel 110 in the previous display period according to the characteristics of the output signal, such as the voltage and/or the duty ratio.
In this embodiment, the display period may be a refresh period of the display panel 110. In this embodiment, the time required for the first transistors 111 of all the pixels on the display panel 110 to complete the refresh of one signal is one refresh cycle.
Therefore, the display equipment can dynamically adjust the control signals one by one in the display period, so that the control signals of each display period of the display equipment are matched with the current temperature, and the display quality is accurately and effectively improved.
In some embodiments, if the load of the processing unit 130 is high, the adjustment period of the control signal may be X times the display period, where X is a positive integer, so as to reduce the operation amount required by the processing unit 130 to adjust the control signal, and the control signal may continue to use the previous control signal.
As shown in fig. 5, the present embodiment further provides a display control method, applied to a display device, including:
step S110: outputting an output signal corresponding to temperature by using a second transistor, wherein the temperature characteristic of the second transistor and the temperature characteristic of the first transistor meet a preset condition;
step S120: generating a control signal corresponding to a current temperature based on the output signal;
step S130: and controlling the working state of the output of the first transistor by using the control signal.
In the display device in this embodiment, the output signal of the second transistor is used to detect the temperature, and since the temperature characteristics of the second transistor and the first transistor are the same or similar, the influence of the current temperature on the first transistor can be accurately reflected.
And generating a control signal corresponding to the current temperature based on the output signal, wherein the control signal corresponds to the temperature, and if the current temperature changes, the control signal also changes correspondingly.
In step S130, the control signal is used to output a start signal corresponding to the current temperature to the first transistor, so as to avoid a phenomenon of poor display caused by an excessively small or large start signal of the first transistor after the temperature changes, thereby improving the display effect.
Alternatively, as shown in fig. 6, the step S120 may include:
step S121: detecting a voltage and/or duty cycle of the output signal;
step S122: determining the current temperature according to the voltage and/or duty ratio;
step S123: and acquiring a control signal corresponding to the current temperature.
In this embodiment, parameters such as the voltage and/or duty ratio of the output signal are detected, so as to combine with the temperature characteristic of the second transistor to obtain the temperature at the current moment, i.e. the current temperature.
The conduction electrical signal (e.g., conduction voltage or conduction current) of a transistor may be different at different temperatures, and whether the transistor is turned on or not determines whether the current output signal is a high level or a low level of the output signal, and obviously also determines the duty ratio of the output signal within a certain period. The high and low levels are referred to as reference levels, which may be 0V, for example.
And obtaining a corresponding control signal according to the current temperature.
Optionally, the step S123 may include:
querying the control signal based on the current temperature.
In this embodiment, the display device may store a corresponding relationship between the temperature and the control signal in advance, and may obtain the control signal corresponding to the current temperature by querying the corresponding relationship.
Optionally, the step S122 may include:
and generating a control signal of the next display period based on the output signal of the current display period and the temperature specific parameter.
In this embodiment, the time of the two display periods before and after the display period is continuous, and the cumulative duration of the two display periods is very short, so that the temperature of the previous display period is substantially equal to or at least very close to the temperature of the next display period due to the continuity of the temperature change. Therefore, in this embodiment, the control signal of the next display period can be determined according to the output of the second transistor of the current display period, so as to implement a cyclic recursive control, implement a dynamic adjustment of the control signal of each display period, ensure that the display output of each display period can achieve the desired effect, and ensure the display effect.
Several specific examples are provided below in connection with any of the embodiments described above:
example 1:
this example provides an E-ink electronic paper display screen temperature detection scheme, and this scheme of utilization can not need extra temperature sensor, has the advantage on cost and structural design, can listen whole screen extremely up and down temperature through grid drive unit shift unit in addition, and the precision is higher.
1. A grid electrode (Gate) driving unit of an E-ink display screen adopts a shift register circuit.
2. The last Gout signal of a gate drive (GOA) circuit on the array polar plate is pulled out to the FPC, the voltage and/or the duty ratio of the Gout signal are determined through a detection circuit for detecting the voltage and/or the duty ratio, the actual temperature is calculated by combining the characteristics of the TFT of the transistor in the GOA, and the real-time temperature monitoring is achieved. In this embodiment, the Gout signal is one of the output signals of the second transistor. The GOA circuit may also be referred to as an ASG circuit.
3. The output Gout of the GOA circuit is led out to an FOG end, the Gout output of 4 pins is added to the FOG end and is respectively output from left, right, upper and lower Gout, then the Gout is fed back to a PCB through an FPC (flexible printed circuit), the time of the effective high level of the Gout is detected through a hardware circuit input/output (I/O) port and a software algorithm through a Gout processing device, and the actual temperature is calculated according to the TFT (thin film transistor) characteristic of the GOA.
Fig. 7 is a timing diagram of signals provided by the present example, and in fig. 7, STV may be an input signal of a first driving subunit of the gate driving unit; gout1, Gout3, and Gout5 are dual-edge drives, wherein the output of the first, second, and third driver sub-units on one side, CK and CKB may be considered as a clock signal, which may be input signals to the CK and CK pins as shown in fig. 3, and PU-1, PU-3, and PU-5 may be internal signals to the corresponding driver sub-units. In this example, it is clear that due to the cascading of the individual drive subunits, the output of the individual drive subunits is sequentially delayed, specifically whether the output is high or low, by the timing of the change in CKB and CK within the individual drive subunits.
Example 2:
the present example provides a computer storage medium having stored thereon computer-executable instructions, such as a computer program; after the computer executable instruction is executed by the processing unit, the information processing method provided by one or more technical schemes can be realized, so that a control signal adaptive to the current temperature is input to the display panel on the premise of not utilizing a special temperature sensor or a special temperature control chip, and the display of the display panel is good.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or groups of components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in the form of a hard component, and also can be realized in the form of a hard component and a soft component functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware components related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A display device, comprising:
a display panel, comprising: the display device comprises a substrate and a first thin film transistor positioned on the substrate;
a second thin film transistor for outputting an output signal corresponding to a temperature, wherein a temperature characteristic of the second thin film transistor is the same as or similar to a temperature characteristic of the first thin film transistor;
and the processing unit is connected with the second thin film transistor and used for determining a control signal corresponding to the current temperature according to the output signal, wherein the control signal is used for controlling the working state of the first thin film transistor.
2. The display device according to claim 1, further comprising:
a gate driving unit including: and the at least one second thin film transistor is connected with the processing unit and used for outputting a grid signal to the first thin film transistor according to the control signal.
3. The display device according to claim 1,
the processing unit is specifically configured to detect a voltage and/or a duty ratio of the output signal, determine a current temperature, and acquire a control signal corresponding to the current temperature according to the current temperature and the temperature characteristic.
4. The display device according to claim 3,
the processing unit is specifically configured to query a control signal corresponding to the current temperature according to the current temperature.
5. The display device according to claim 2,
the processing unit is positioned on the circuit board;
the display device further includes:
and one end of the connecting unit is connected with the grid driving unit, the other end of the connecting unit is connected to the circuit board, and the output signal is transmitted to the processing unit.
6. The display device according to any one of claims 1 to 4,
the processing unit is specifically configured to determine a control signal of a next display period according to an output signal of a current display period.
7. A display control method is applied to a display device and comprises the following steps:
outputting an output signal corresponding to temperature by using a second thin film transistor, wherein the temperature characteristic of the second thin film transistor is the same as or similar to that of the first thin film transistor;
generating a control signal corresponding to a current temperature based on the output signal;
and controlling the working state of the output of the first thin film transistor by using the control signal.
8. The display control method according to claim 7,
the generating a control signal corresponding to a current temperature based on the output signal includes:
detecting a voltage and/or duty cycle of the output signal;
determining the current temperature according to the voltage and/or duty ratio;
and acquiring a control signal corresponding to the current temperature.
9. The display control method according to claim 8,
the acquiring of the control signal corresponding to the current temperature includes:
querying the control signal based on the current temperature.
10. The method according to any one of claims 7 to 9,
the generating a control signal corresponding to a current temperature based on the output signal includes:
generating a control signal of a next display period based on the output signal of the current display period and a temperature specific parameter; wherein the temperature specific parameter is based on a temperature of the thin film transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876200.7A CN107578748B (en) | 2017-09-25 | 2017-09-25 | Display apparatus and display control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876200.7A CN107578748B (en) | 2017-09-25 | 2017-09-25 | Display apparatus and display control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107578748A CN107578748A (en) | 2018-01-12 |
| CN107578748B true CN107578748B (en) | 2020-03-24 |
Family
ID=61039656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710876200.7A Active CN107578748B (en) | 2017-09-25 | 2017-09-25 | Display apparatus and display control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107578748B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377931B (en) * | 2018-12-07 | 2022-02-08 | 合肥鑫晟光电科技有限公司 | Threshold voltage acquisition method, pixel compensation method and display panel |
| CN114420064A (en) * | 2022-02-17 | 2022-04-29 | 北京京东方光电科技有限公司 | Electronic paper driving circuit, method, electronic paper display panel and electronic paper display |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324715A (en) * | 2007-06-15 | 2008-12-17 | 群康科技(深圳)有限公司 | Liquid crystal display apparatus and drive method thereof |
| CN103176489A (en) * | 2013-02-06 | 2013-06-26 | 南京千韵电子科技有限公司 | Method and device for controlling chip inner temperature and experiment instrument based on same method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101240530B1 (en) * | 2008-07-31 | 2013-03-08 | 삼성전자주식회사 | CRUM unit, replaceble unit and image forming device comprising the CRUM unit, and, method for driving unit thereof |
| CN104008727B (en) * | 2014-06-09 | 2016-06-29 | 西安电子科技大学 | LED display heat dissipation uniformity detection method |
| CN105047177A (en) * | 2015-08-19 | 2015-11-11 | 京东方科技集团股份有限公司 | Display equipment adjustment device, display equipment adjustment method, and display device |
-
2017
- 2017-09-25 CN CN201710876200.7A patent/CN107578748B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324715A (en) * | 2007-06-15 | 2008-12-17 | 群康科技(深圳)有限公司 | Liquid crystal display apparatus and drive method thereof |
| CN103176489A (en) * | 2013-02-06 | 2013-06-26 | 南京千韵电子科技有限公司 | Method and device for controlling chip inner temperature and experiment instrument based on same method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107578748A (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107424577B (en) | Display driving circuit, display device and driving method thereof | |
| US9576524B2 (en) | Shift register unit, shift register circuit, array substrate and display device | |
| US11373602B2 (en) | Pixel circuit, method and apparatus for driving the same, array substrate, and display apparatus | |
| US11914817B2 (en) | Position detection system and touch sensor | |
| US10706804B2 (en) | Shift register, image display including the same, and method of driving the same | |
| TWI607429B (en) | Driving Method for Display Device and Related Driving Device | |
| CN101383130B (en) | Lcd | |
| JP2021520508A (en) | Pixel circuit and its drive method, display board, display device | |
| US9262982B2 (en) | Timing controller for liquid crystal panel | |
| TWI433089B (en) | Clip system of a display and timing-clip control method thereof | |
| US10522104B2 (en) | Liquid crystal panel driving circuit and liquid crystal display device | |
| KR101420472B1 (en) | Organic light emitting diode display device and drving method thereof | |
| US9379697B2 (en) | Gate driver circuit and display apparatus having the same | |
| EP3151228B1 (en) | Pixel circuit and display device | |
| GB2527715A (en) | GOA drive circuit and drive method | |
| JP2009025804A (en) | Display device and its driving method | |
| CN110085173B (en) | Driving method of display panel, driving chip and display device | |
| CN107578748B (en) | Display apparatus and display control method | |
| CN110955352B (en) | Touch panel display and control method thereof | |
| WO2023216323A1 (en) | Display control method for display panel, and display module and display apparatus | |
| US11073941B1 (en) | Driving device and operation method thereof | |
| CN110955351B (en) | Touch panel control device, touch panel control method, and input display device | |
| US9240155B2 (en) | Driving circuit and driving method thereof and liquid crystal display | |
| KR20060090076A (en) | Display device and method for driving thereof | |
| KR102333734B1 (en) | Level Shifter and Flat Display Device having thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |