Display module and display device

Abstract

The invention provides a display module and a display device, which can be applied to the technical field of display. According to the technical scheme, the display module comprises a plurality of power input ends and a plurality of OLED pixel units, the pixel units are arranged on the same substrate, each power input end of the power input ends is connected with at least one pixel unit of the pixel units, and a plurality of driving power sources are correspondingly connected through the power input ends. The driving power received by each pixel unit in the plurality of pixel units is improved, so that the peak brightness of the whole display module is improved, and the peak brightness of the display device composed of the display module is also improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] Organic light-emitting diode (OLED) display modules have many advantages such as being thin and light, having a fast response speed and having a wide viewing angle, and are currently widely used as display modules for electronic devices (such as notebook computers, tablet computers, mobile phones, etc.).

[0003] For display modules, the higher the peak brightness, the better, because the higher the peak brightness, the better the high dynamic range imaging (HDR) effect of the display module.

[0004] However, the peak brightness of the current OLED display module is relatively low, resulting in a poor HDR effect of the OLED display module, and ultimately resulting in a poor picture display effect of the OLED display module. Summary of the invention

[0005] The present application provides a display module and a display device, aiming to provide higher driving power for the display module and improve the peak brightness of the display module.

[0006] In a first aspect, the present application provides a display module, comprising multiple power input terminals and multiple pixel units, each of the multiple power input terminals is connected to at least one pixel unit among the multiple pixel units, each of the multiple pixel units comprises an organic light emitting diode (OLED), and the multiple pixel units are arranged on the same substrate.

[0007] In the display module, multiple power input terminals correspond one-to-one to multiple driving power supplies. Multiple driving power supplies can be connected through the multiple power input terminals, so that the power of the multiple driving power supplies is superimposed, thereby increasing the driving power of the entire display module, so that the driving power can meet the brightness requirements and improve the peak brightness of the display module.

[0008] In some implementations, each power input terminal is connected to only some of the pixel units among the plurality of pixel units.

[0009] When the power input terminal is connected to only some of the pixel units, the arrangement of the multiple pixel units on the substrate can be simplified, thereby reducing the difficulty of design.

[0010] In some implementations, multiple pixel units are arranged in t columns, t is an integer greater than 1, each of the multiple power input terminals is connected to at least one column of pixel units in the t columns of pixel units, at least two columns of pixel units in the t columns of pixel units are connected to different power input terminals, and at least two columns of pixel units are arranged in an staggered manner.

[0011] The pixel units connected to different power input terminals are arranged in a staggered manner, so that when there is a voltage difference at the power input terminal, the brightness of the display module can be prevented from being uneven over a large area.

[0012] In some implementations, the multiple power input terminals are n power input terminals, t is equal to k*n, n is an integer greater than 1, and k is a positive integer; wherein the multiple pixel units are arranged as k arrays, each of the k arrays contains n columns out of t columns, and any two arrays contain different columns out of t columns, the n power input terminals correspond one-to-one to the n columns in each of the k arrays, and each of the n power input terminals is connected to the corresponding column of pixel units.

[0013] By arranging the pixel units on the substrate in a preset fixed order, the effect of avoiding large-area uneven brightness of the display module can be improved and the design difficulty can be reduced.

[0014] In some implementations, the number of the plurality of power input terminals is two.

[0015] In a second aspect, the present application provides a display device, comprising multiple driving power supplies and a display module, the display module being the display module provided in the first aspect, each of the multiple driving power supplies being connected to one of the multiple power input terminals in the display module, and the power input terminals to which any two driving power supplies are connected are different.

[0016] In some implementations, the output power of each driving power source among the multiple driving power sources is not less than the rated total power of all pixel units connected to each driving power source through the power input terminal of the display module.

[0017] The failure of a single driving power supply to meet the brightness requirements of the display module actually means that the output power of a single driving power supply does not meet the rated total power of all connected pixel units. When multiple driving power supplies are connected, it is necessary to ensure that the output power of each driving power supply is not lower than the rated total power of all corresponding connected pixel units, thereby ensuring that the peak brightness of the display module is improved.

[0018] In some implementations, the control unit is connected to each pixel unit of the plurality of pixel units, and the control unit is used to control the pixel unit to display a target image.

[0019] In a third aspect, the present application provides an electronic device, including a processor and a display device, wherein the display device is the display device provided in the second aspect, and the processor is used to transmit a target image to the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application;

[0022] Figure 2 Another structural schematic diagram of a display module provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of another structure of a display module provided in an embodiment of the present application;

[0024] Figure 4 A schematic diagram of another structure of a display module provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of another structure of a display module provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of another structure of a display module provided in an embodiment of the present application;

[0027] Figure 7 A schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of a structure of a display module receiving control information provided in an embodiment of the present application;

[0029] Fig. 9 A schematic diagram of the structure of a pixel unit in a display module 600 provided in an embodiment of the present application.

[0030] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] As an organic light-emitting device that does not require backlight or color filters, OLED has greater advantages than traditional liquid crystal displays (LCD) in terms of image quality, response speed, thickness and viewing angle. It is currently widely used as a display module for electronic devices such as laptops, tablets, and mobile phones.

[0033] For display modules, peak brightness is a key competitiveness indicator. The higher the peak brightness, the better the HDR effect of the display module, which means that the display module can provide more dynamic range and image details, so that the picture better reflects the visual effects in the real environment. It is understandable that in OLED display modules, OLED diodes achieve self-luminescence through carrier injection and recombination, so the higher the peak brightness of the display module, the higher the power required to drive the OLED.

[0034] In an OLED display module, each pixel unit includes three independent sub-pixels, corresponding to red, green, and blue colors respectively. Each sub-pixel includes an OLED diode for emitting light of the corresponding color. The driving power supply actually powers the OLED diode in each pixel unit. Therefore, as the peak brightness design requirements of the OLED display module are upgraded from generation to generation, the power required to be provided by the driving power supply connected to the power input terminal is gradually increased. The current maximum power output of the driving power supply used to drive the OLED display module is difficult to meet the peak brightness requirements of the OLED display module, resulting in the difficulty in further improving the peak brightness of the OLED display module.

[0035] In order to solve the above technical problems, the present application provides a display module and a display device, aiming to provide higher driving power for the display module and improve the peak brightness of the display module.

[0036] The technical concept of the present application is: connecting multiple pixel units in an OLED display module to multiple different power supply buses, each power supply bus is connected to a single driving power supply through a corresponding power input terminal, so as to connect multiple driving power supplies to an OLED display module on a substrate, thereby increasing the driving power allocated to each pixel unit and improving the brightness upper limit of the OLED display module.

[0037] The present application also proposes to arrange pixel units connected to different driving power supplies in an interlaced manner, thereby reducing the brightness difference between different areas in the substrate and avoiding the problem of large-area uneven brightness in the OLED display module.

[0038] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application. Figure 1 As shown, the display module 100 includes a plurality of pixel units and a plurality of power input terminals, and the plurality of pixel unit arrays are arranged on the same substrate.

[0039] Among them, multiple pixel units are connected to the same power supply bus, which includes multiple input terminals. The multiple input terminals of the power supply bus correspond one-to-one to the multiple power input terminals in the display module 100. Each power input terminal can be connected to a driving power supply, that is, multiple driving power supplies can be connected through multiple power input terminals in the display module 100. The driving power input by multiple driving power supplies converges to the power supply bus, and is input to each pixel unit connected to the power supply bus through the power supply bus. Each pixel unit can obtain the power of multiple driving power supplies through the power supply bus, and each pixel unit includes an OLED diode, which relies on the power input by the power supply bus to achieve self-luminescence.

[0040] In this embodiment, the display module 100 receives the output power of multiple driving power supplies through multiple power input terminals, which is equivalent to increasing the driving power of the entire display module by superimposing the power of multiple driving power supplies, so that the driving power can meet the brightness requirements and improve the peak brightness of the display module.

[0041] Figure 1 The illustrated embodiment is equivalent to each of the multiple power input terminals being connected to each pixel unit in the display module 100 . In some implementations, each power input terminal may be connected to only some of the pixel units.

[0042] Figure 2 Another structural schematic diagram of a display module provided in an embodiment of the present application. Figure 2 As shown, the display module 200 includes a plurality of pixel units and two power input terminals, and the plurality of pixel unit arrays are arranged on the same substrate.

[0043] Wherein, a plurality of pixel units are arranged into t columns, and the pixel units in the t columns are divided into two types of pixel units.

[0044] The first type of pixel unit includes t1 columns of pixel units, each pixel unit in the t1 columns of pixel units is connected to a first power supply bus, an input end of the first power supply bus is correspondingly connected to a first power input end in the display module 300, and the first power input end is connected to a driving power supply 1, that is, the driving power supply 1 supplies power to each pixel unit in the first type of pixel unit through the first power input end.

[0045] The second type of pixel unit includes t2 columns of pixel units, each pixel unit in the t2 columns of pixel units is connected to a second power supply bus, an input end of the second power supply bus is correspondingly connected to a second power input end in the display module 300, and the second power input end is connected to a driving power supply 2, that is, the driving power supply 2 supplies power to each pixel unit in the second type of pixel unit through the second power input end.

[0046] In the above two types of pixel units, the last column of pixel units in the first type of pixel units is adjacent to the first column of pixel units in the second type of pixel units. Except for the above two columns of pixel units, the remaining pixel units in the display module 300 are only arranged adjacent to the same type of pixel units.

[0047] In some implementations, t1 and t2 may be equal or unequal in value, and the sum of the values ​​of t1 and t2 is equal to t. The display module 200 only needs to ensure that the output power of the driving power supply 1 is not less than the rated total power of all pixel units in the first type of pixel units, and the output power of the driving power supply 2 is not less than the rated total power of all pixel units in the second type of pixel units.

[0048] When the power supply received by the OLED diode reaches the rated power, the brightness of the light emitted by the OLED diode can reach its peak brightness. Therefore, when the driving power supply 1 and the driving power supply 2 connected to the display module 200 meet the power requirements of the corresponding pixel units, the display module 200 can reach its peak brightness.

[0049] Understandably, Figure 2 The multiple pixel units in the display module 200 shown are arranged in t columns, that is, the input circuits for connecting to the corresponding pixel units on the same power bus are arranged in t columns. Since the display module does not have a strict horizontal or vertical distinction, the multiple pixel units in the display module 200 can also be arranged in m rows. In this case, the input circuits for connecting to the corresponding pixel units on the same power bus are arranged in m rows.

[0050] In this embodiment, two independent driving power supplies can be connected to the display module 200 through two power input terminals, thereby increasing the driving power input to the display module 200 and improving the peak brightness of the display module.

[0051] In some implementations, the t1 column of pixel units in the first type of pixel units and the t2 column of pixel units in the second type of pixel units may be arranged alternately.

[0052] As an example, Figure 3 This is another structural schematic diagram of a display module provided in an embodiment of the present application. Figure 3 As shown, the display module 300 includes a plurality of pixel units and two power input terminals, and the plurality of pixel unit arrays are arranged on the same substrate.

[0053] and Figure 3 The structure shown is similar, a plurality of pixel units are arranged into t columns, each pixel unit in the first column of pixel units is connected to a first power supply bus, an input end of the first power supply bus is correspondingly connected to a first power supply input end in the display module 300, and the display module 300 is connected to a driving power supply 1 through the first power supply input end, that is, the driving power supply 1 supplies power to each pixel unit in the first column of pixel units through the first power supply input end.

[0054] Each pixel unit in the second column of pixel units is connected to the second power supply bus, the input end of the second power supply bus is correspondingly connected to the second power input end in the display module 300, and the second power input end is connected to the driving power supply 2, that is, the driving power supply 2 supplies power to each pixel unit in the second column of pixel units through the second power input end.

[0055] Each pixel unit in the third column of pixel units is connected to the first power bus, each pixel unit in the fourth column of pixel units is connected to the second power bus, and the remaining other columns of pixel units are connected in the above manner, with every two adjacent columns of pixel units alternately connected to the first power bus and the second power bus until all t columns of pixel units are connected to the corresponding power buses.

[0056] The above connection method is actually to divide t columns of pixel units into t / 2 parts according to the number of power input terminals, so each part contains two columns of pixel units, and these two columns of pixel units are respectively connected to the first power bus and the second power bus in a fixed access order, so as to connect each pixel unit in the t / 2 parts to the power input terminal. It should be noted that the value corresponding to t can be an even number or an odd number. When the value corresponding to t is an odd number, the remaining 1 column of pixel units can be randomly connected to the first power bus or the second power bus.

[0057] In some implementations, the two columns of pixel units in each part may not follow a fixed access order when they are respectively connected to the first power supply bus and the second power supply bus, and the two columns of pixel units are randomly connected to different power supply buses.

[0058] It can be understood that if the pixel units in the display module 300 are classified according to the power input terminal to which each pixel unit is connected, the pixel units in the display module 300 can be divided into two categories, just like the display module 200: each pixel unit contained in the first category of pixel units is connected to the driving power supply 1, and each pixel unit contained in the second category of pixel units is connected to the driving power supply 2. The main difference lies in the staggered arrangement of each column of pixel units of different categories in the display module 300.

[0059] It should be noted that in order to meet the brightness requirements of the display module 300, the output power of the driving power supply 1 is not lower than the rated total power of all pixel units in the first type of pixel units, and the output power of the driving power supply 2 is not lower than the rated total power of all pixel units in the second type of pixel units.

[0060] Figure 3 In the display module 300 shown, multiple pixel units are arranged in t columns, that is, the input circuits for connecting to the corresponding pixel units on the same power bus are arranged in t columns. Since the display module does not have a strict horizontal and vertical distinction, the multiple pixel units in the display module 300 can also be arranged in m rows. In this case, the input circuits for connecting to the corresponding pixel units on the same power bus are arranged in m rows, and the m rows of pixel units are divided into m / 2 parts.

[0061] In this embodiment, the columns of pixel units connected to different power input terminals are arranged in a staggered manner, which can avoid the problem of uneven brightness of the display module over a large area due to voltage differences of the driving power supply.

[0062] In the display module 300, adjacent columns of pixel units are connected to different power input terminals, and each pixel unit in the same column is connected to the same power input terminal. In some implementations, adjacent pixel units in the same column or adjacent pixel units in the same row can also be connected to different power input terminals.

[0063] As an example, Figure 4 This is another structural schematic diagram of a display module provided in an embodiment of the present application. Figure 4 As shown, the display module 400 includes a plurality of pixel units and two power input terminals, and the plurality of pixel unit arrays are arranged on the same substrate.

[0064] Among them, multiple pixel units are arranged into m rows and t columns, and the display module 400 divides the m×t pixel units into m×t / 4 arrays according to 2 power input terminals. Each array contains 4 pixel units in 2 rows and 2 columns, and each adjacent pixel unit in each array is connected to different power input terminals, and the diagonal pixel units in each array are connected to the same power input terminal.

[0065] For example, the pixel units at the first row and first column (1-1), the first row and second column (1-2), the second row and first column (2-1), and the second row and second column (2-2) in the display module 400 form an array.

[0066] Among them, the pixel unit 1-1 is connected to the first power supply bus, the input end of the first power supply bus is correspondingly connected to the first power input end in the display module 400, and the display module 400 is connected to the driving power supply 1 through the first power input end, that is, the driving power supply 1 supplies power to the pixel unit 1-1 through the first power input end.

[0067] The pixel unit 1-2 is connected to the second power supply bus, the input end of the second power supply bus is correspondingly connected to the second power input end in the display module 400, and the display module 400 is connected to the driving power supply 2 through the second power input end, that is, the driving power supply 2 supplies power to the pixel unit 1-2 through the second power input end.

[0068] The pixel unit 2-1 is connected to the second power supply bus, the input end of the second power supply bus is correspondingly connected to the second power input end in the display module 400, and the display module 400 is connected to the driving power supply 2 through the second power input end, that is, the driving power supply 2 supplies power to the pixel unit 2-1 through the second power input end.

[0069] The pixel unit 2-2 is connected to the first power supply bus, the input end of the first power supply bus is correspondingly connected to the first power input end in the display module 400, and the display module 400 is connected to the driving power supply 1 through the first power input end, that is, the driving power supply 1 supplies power to the pixel unit 2-2 through the first power input end.

[0070] like Figure 4 As shown, the adjacent pixel units in the same column and the adjacent pixel units in the same row of each pixel unit in the above array are connected to different power input terminals. Similarly, the remaining 4 pixel units in each array can be connected to the corresponding power input terminals in the example manner. It can be understood that the order of access in each array can also be changed, as long as the power input terminal connected to each pixel unit is different from the power input terminal connected to the adjacent pixel unit.

[0071] In some implementations, when the value corresponding to m is an odd number, the display module 400 has one remaining row of pixel units that cannot constitute the array in the figure, and each pixel unit in the remaining row of pixel units is compared with adjacent pixel units in the same column, so that the power input terminal connected to each pixel unit in the remaining row is different from the power input terminal connected to the adjacent pixel units in the same column; when the value corresponding to t is an odd number, the display module 400 has one remaining column that cannot constitute the array in the figure, and each pixel unit in the remaining column of pixel units is compared with adjacent pixel units in the same column, so that the power input terminal connected to each pixel unit in the remaining column is different from the power input terminal connected to the adjacent pixel units in the same column.

[0072] It can be understood that since the display module 400 includes two power input terminals, the pixel units in the display module 400 are divided into two categories of pixel units: each pixel unit included in the first category of pixel units is connected to the driving power supply 1, and each pixel unit included in the second category of pixel units is connected to the driving power supply 2, and different categories of pixel units in the display module 400 are arranged alternately in a chessboard form.

[0073] In order to meet the brightness requirements of the display module 400, the output power of the driving power supply 1 is not lower than the rated total power of all pixel units in the first type of pixel units, and the output power of the driving power supply 2 is not lower than the rated total power of all pixel units in the second type of pixel units.

[0074] In this embodiment, different types of pixel units are further staggered, so that the distribution granularity of pixel units connected to different driving power supplies is further reduced, thereby improving the brightness uniformity of the display module.

[0075] The display modules 200 , 300 and 400 mentioned above only include two power input terminals. When the display module includes more power input terminals, the arrangement of the pixel units can be set in the same way.

[0076] Figure 5 This is another structural schematic diagram of a display module provided in an embodiment of the present application. Figure 5 As shown, the display module 500 includes a plurality of pixel units and n power input terminals, and the plurality of pixel unit arrays are arranged on the same substrate.

[0077] Among them, multiple pixel units are arranged into t columns. According to n power input terminals, the t columns of pixel units can be divided into n types of pixel units. Each type of pixel unit corresponds to an array and each pixel unit in each type of pixel unit is connected to the same power input terminal. The power input terminals connected to any two types of pixel units are different.

[0078] The first type of pixel unit, that is, the first array, includes t1 columns of pixel units, each pixel unit in the t1 column of pixel units is connected to a first power supply bus, an input end of the first power supply bus is correspondingly connected to a first power input end in the display module 500, and the display module 500 is connected to the driving power supply 1 through the first power input end, that is, the driving power supply 1 supplies power to each pixel unit in the first array through the first power input end.

[0079] The second type of pixel unit, that is, the second array, includes t2 columns of pixel units, each pixel unit in the t2 column of pixel units is connected to the second power supply bus, the input end of the second power supply bus is correspondingly connected to the second power input end in the display module 500, and the display module 500 is connected to the driving power supply 2 through the second power input end, that is, the driving power supply 2 supplies power to each pixel unit in the second array through the second power input end.

[0080] The i-th type of pixel unit, i.e., the i-th array, contains t i Column pixel unit, t i Each pixel unit in the column pixel unit is connected to the i-th power supply bus, the input end of the i-th power supply bus is correspondingly connected to the i-th power input end in the display module 500, and the display module 500 is connected to the driving power supply i through the i-th power input end, that is, the driving power supply i supplies power to each pixel unit in the i-th array through the i-th power input end, where i is an integer from 3 to n.

[0081] In each of the above pixel unit arrays, except for the first and last two columns of pixel units which are adjacent to another type of pixel units, the remaining pixel units in each array are only arranged adjacent to the same type of pixel units.

[0082] In some implementations, t i They may be equal or unequal in value, from t1 to t n The sum of the corresponding values ​​equals t. The display module 500 only needs to ensure that the output power of each driving power source is not lower than the rated total power of all pixel units of the same type connected to the corresponding pixel units through the power input terminal.

[0083] Understandably, Figure 5 In the display module 500 shown in the figure, a plurality of pixel units are arranged into t columns. The display module 500 can divide the t columns into n arrays in the form of columns, each array containing t i Since the display module does not have a strict horizontal and vertical distinction, the multiple pixel units in the display module 500 can also be arranged into m rows, and the display module 500 can also divide the m rows into n arrays in the form of rows, each array containing m j Row pixel unit, j is an integer from 1 to n.

[0084] In some implementations, pixel units of different types in the above n types of pixel units may be arranged alternately.

[0085] As an example, Figure 6 This is another structural schematic diagram of a display module provided in an embodiment of the present application. Figure 6 As shown, the display module 600 includes a plurality of pixel units and n power input terminals. In this embodiment, n is an integer greater than 2, and a plurality of pixel unit arrays are arranged on the same substrate.

[0086] In the display module 600, according to n power input terminals, t columns of pixel units are divided into t / n arrays to obtain k arrays, that is, t is equal to k×n, so each of the k arrays includes n columns of pixel units, and the n columns of pixel units included in each array correspond one-to-one to the n power input terminals, and each column of pixel units in the n columns of pixel units is connected to the corresponding power input terminal through the corresponding power supply bus.

[0087] For example: Figure 6 As shown, taking the first array as an example, the first array includes n columns of pixel units.

[0088] Among them, each pixel unit in the first column of pixel units is connected to the first power supply bus, the input end of the first power supply bus is correspondingly connected to the first power input end in the display module 600, and the display module 600 is connected to the driving power supply 1 through the first power input end, that is, the driving power supply 1 supplies power to each pixel unit in the first column of pixel units through the first power input end.

[0089] Each pixel unit in the second column of pixel units is connected to the second power supply bus, and the input end of the second power supply bus is correspondingly connected to the second power input end in the display module 600. The display module 600 is connected to the driving power supply 2 through the second power input end, that is, the driving power supply 2 supplies power to each pixel unit in the second column of pixel units through the second power input end.

[0090] By analogy, each pixel unit in the i-th column of pixel units is connected to the i-th power supply bus, the input end of the i-th power supply bus is correspondingly connected to the i-th power input end in the display module 600, and the display module 600 is connected to the driving power supply i through the i-th power input end, that is, the driving power supply i supplies power to each pixel unit in the i-th column of pixel units through the i-th power input end, where i is an integer from 3 to n.

[0091] Similarly, n columns of pixel units in the second array to the kth array may be connected to n power input terminals in the exemplary manner.

[0092] In some implementations, when the number of column pixel units in the kth array is less than n columns, the column pixel units in the kth array can be connected to the corresponding power input terminals in sequence, starting from the first column pixel unit, in the order in the above examples, according to the corresponding relationship with each power input terminal.

[0093] In some implementations, the correspondence between the n columns of pixel units and the n power input terminals in any two of the k arrays may be different. For example, the first column of pixel units in the first array corresponds to the first power input terminal, the second column of pixel units in the first array corresponds to the second power input terminal, and the first column of pixel units in the kth array may correspond to the second power input terminal, and the second column of pixel units in the kth array may correspond to the first power input terminal. In this case, it means that the driving power supplies connected to the n columns of pixel units in different arrays are also different.

[0094] It can be understood that if the pixel units in the display module 600 are classified according to the power input terminal to which each pixel unit is connected, the pixel units in the display module 600 can be divided into n types of pixel units: each pixel unit included in the first type of pixel units is connected to a driving power source 1, each pixel unit included in the second type of pixel units is connected to a driving power source 2, and each pixel unit included in the i-th type of pixel units is connected to a driving power source n, where i is from 3 to n. In order to meet the brightness requirements of the display module 600, the output power of each of the n driving power sources is not less than the rated total power of all pixel units in the corresponding type of pixel units.

[0095] In this embodiment, t columns of pixel units are divided into k arrays, and corresponding power input terminals are staggeredly connected in a predetermined order in each array, thereby reducing the complexity of pixel unit arrangement while avoiding large-area uneven display brightness of the display module.

[0096] In the above embodiments, the driving power supply is an external power supply separated from the display module, and corresponds one-to-one with the power input terminal in the display module. Therefore, the present application provides a display device, including multiple driving power supplies and a display module. The display module can be any one of the display modules in the above embodiments. The multiple driving power supplies correspond one-to-one with the multiple power input terminals in the display module, and each driving power supply is connected to the corresponding power input terminal in the display module. In some implementations, multiple driving power supplies can also be integrated into the display module. When the driving power supply is integrated into the display module, the display module is equivalent to a display device.

[0097] By connecting multiple driving power supplies through multiple power input terminals, the pixel units in the display module can be powered to make them emit light. It can be understood that each pixel unit is actually equivalent to a pixel point. When the display module displays an image, it is necessary to control each pixel unit to emit light of a specified color and brightness. Multiple pixel points of different colors and brightness are arranged in a certain order to finally present the target image. Therefore, each pixel unit in the display module needs to be connected to a control unit.

[0098] Figure 7 This is a schematic diagram of the structure of a display device provided by an embodiment of the present application. Figure 7 As shown, the display device 700 includes a display module 701 , a driving module 702 and a control module 703 .

[0099] The display module 701 includes a plurality of power input terminals and a plurality of pixel units, and the display module 801 may be any one of the display modules 100 to 600 in the above embodiments.

[0100] The driving module 702 includes a plurality of driving power supplies, and the driving module 702 is respectively connected to the display module 701 and the control module 703 to supply power to the display module 701 and the control module 703. The plurality of driving power supplies in the driving module 702 correspond to the plurality of power input terminals in the display module 701 one by one, and the driving module 702 is connected to the display module 701 through the plurality of power input terminals, and the output power of each of the plurality of driving power supplies meets the rated total power of all pixel units connected to the corresponding driving power supply.

[0101] The control module 703 is usually a control unit, which is connected to the display module 701. The control unit outputs control information to each pixel unit in the display module 701, thereby controlling the color and brightness emitted by each pixel.

[0102] As an example, the display module 600 is used as the display module in the display device 700. Figure 8 This is a schematic diagram of a structure of a display module receiving control information provided by an embodiment of the present application. Figure 8 As shown, since the pixel units in the display module 600 are distributed in an array, in order to accurately control each pixel unit in the display module 600, each pixel unit receives control data information for controlling the brightness and color of the pixel unit according to its row position and column position.

[0103] Fig. 9 FIG. 6 is a schematic diagram of the structure of a pixel unit in a display module 600 provided in an embodiment of the present application. Fig. 9As shown, the pixel unit includes a driving unit and a light-emitting unit, wherein the driving unit functions similarly to a driving switch tube, an end of the driving unit that is close to the control electrode effect is used to connect to the control unit and receive control data information sent by the control unit, an end of the driving unit that is close to the source electrode effect is used to access the driving power received by the pixel unit from the corresponding driving power supply, and an end of the driving unit that is close to the drain electrode effect is used to connect to the light-emitting unit.

[0104] The light-emitting unit contains three independent sub-pixels, each of which includes an OLED diode. Each OLED diode emits only one color from red "R", green "G", and blue "B". RGB is the three primary colors of optics. Usually, each corresponding color has 256 levels of brightness. By adjusting the brightness of the light emitted by each OLED diode in the pixel unit, the color displayed by each pixel unit can be controlled.

[0105] The control unit determines the color and brightness of the light that each of the multiple pixel units should emit according to the target display image of the display device 700 and the number of the multiple pixel units in the display module 600, generates control data information corresponding to each pixel unit, and transmits the control data information to each pixel unit. The driving unit in each pixel unit controls the OLED diode in the light-emitting unit to emit light and emit light of a specified color and brightness according to the control data information. Finally, according to the control data information, the multiple pixel units in the display module 600 emit light of different colors and brightness, and are arranged to form a complete image in the human eye's perspective.

[0106] It should be noted that the output power of each of the multiple driving power supplies in the display device 700 meets the rated total power of all the corresponding pixel units connected to it. In each pixel unit, the driving unit allocates a driving power matching the specified brightness to the corresponding OLED diode according to the control data information, thereby controlling the light to emit light of the specified brightness.

[0107] In the above embodiments, the display module exists alone or as part of the display device. In some implementations, the display module can be used for interaction between a user and an electronic device. Therefore, the present application provides an electronic device, including a processor and a display device, wherein the display device can be a display device 700, and the processor is used to transmit a target image to the display device. Such electronic devices can be a series of electronic devices that require a display module for interaction, such as a laptop, a tablet computer, or a mobile phone.

[0108] It can be understood that in the above embodiments, the display module is connected to multiple driving power supplies, and the display device or electronic device includes multiple driving power supplies. Compared with the traditional display module or display device with a single driving power supply, when the display brightness is consistent, the heat generated by each driving power supply in the display module or display device with multiple driving power supplies is lower than the heat generated by a single driving power supply.

[0109] For example: Display device A with a single drive power supply and display device B with a dual drive power supply both display the same image with a brightness of 800 nits. In display device B, due to the dual drive power supply, the circuit for powering the display module is split into two paths. When the brightness is consistent, the drive power output by the dual drive power supply is consistent with the drive power output by the single drive power supply, and the current is evenly divided into two power supply lines. At this time, the current of each power supply line is reduced to 1 / 2 of the single power supply line, so the heat generated by the link impedance in each power supply line is reduced to 1 / 4 of the heat generated by the single power supply line, and the total heat generated in the two power supply lines is reduced to 1 / 2 of the heat generated by the single power supply line. As a specific manifestation, the maximum temperature of the shell near the drive power supply in display device A is 39 degrees Celsius (℃), while the maximum temperature of the shell near the drive power supply in display device B is 36 degrees Celsius, and the heat generation is significantly reduced.

[0110] For display modules, connecting to multiple driving power supplies can not only improve the peak brightness of the display module, but also effectively reduce the heat generation of the device and ensure the safety performance of the device when the display brightness is consistent, compared with connecting to a single driving power supply.

[0111] Those skilled in the art will readily appreciate other embodiments of the present application after considering the description and practicing the contents disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0112] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A display module, characterized in that: It comprises a plurality of power input terminals and a plurality of pixel units, wherein each of the plurality of power input terminals is connected to at least one of the plurality of pixel units, each of the plurality of pixel units comprises an organic light emitting diode (OLED), and the plurality of pixel units are arranged on the same substrate.

2. The display module according to claim 1, characterized in that: Each of the power input terminals is only connected to a portion of the pixel units among the plurality of pixel units.

3. The display module according to claim 2, characterized in that: The multiple pixel units are arranged in t columns, t is an integer greater than 1, each of the multiple power input terminals is connected to at least one column of pixel units in the t columns of pixel units, at least two columns of pixel units in the t columns of pixel units are connected to different power input terminals, and the at least two columns of pixel units are arranged in an alternating manner.

4. The display module according to claim 3, characterized in that: The plurality of power input terminals are n power input terminals, t is equal to k*n, n is an integer greater than 1, and k is a positive integer; The plurality of pixel units are arranged as k arrays, each of the k arrays includes n columns among the t columns, and any two arrays include different columns among the t columns. The n power input terminals correspond one-to-one to the n columns in each of the k arrays, and each of the n power input terminals is connected to a corresponding column of pixel units.

5. The display module according to any one of claims 1 to 4, characterized in that: The number of the multiple power input terminals is 2.

6. A display device, characterized in that: The display device includes multiple driving power supplies and a display module, and the display module is the display module as described in any one of claims 1 to 5, each of the multiple driving power supplies is connected to one of the multiple power input terminals in the display module, and the power input terminals to which any two driving power supplies are connected are different.

7. The display device according to claim 6, characterized in that: The output power of each of the multiple driving power supplies is not less than the rated total power of all pixel units connected to each driving power supply through the power input terminal of the display module.

8. The display device according to claim 6 or 7, characterized in that: The display device further includes a control unit, which is connected to each pixel unit of the plurality of pixel units, and is used to control the pixel unit to display a target image.

9. An electronic device, characterized in that: The device comprises a processor and a display device, wherein the display device is the display device as claimed in any one of claims 6 to 8, and the processor is used for transmitting a target image to the display device.

Images