Laminated structure color light-emitting device regulated and controlled by common grid

Abstract

The invention discloses a laminated structure color light-emitting device regulated and controlled by a common grid electrode, and the device comprises a light-emitting pixel point which comprises a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit, and each of the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit comprises a first electrode, a light-emitting function layer and a second electrode; a red gate insulation layer is arranged above the red light-emitting unit, a red gate regulation and control electrode is arranged above the red gate insulation layer, and the green light-emitting unit and the blue light-emitting unit are arranged in the same way; a first high-resistance lead is connected between the red grid regulation electrode and the green grid regulation electrode in the same light-emitting pixel point, and a second high-resistance lead is connected between the green grid regulation electrode and the blue grid regulation electrode in the same light-emitting pixel point; the blue grid regulation and control electrodes are uniformly connected to a first point, and the red regulation and control electrodes are uniformly connected to a second point. The integrated structure of the grid regulation and control circuit is effectively simplified.

Description

Technical Field

[0001] The invention relates to the field of optoelectronic display, and in particular to a multi-layer structure color light-emitting device regulated by a common gate. Background Art

[0002] The light-emitting devices in optoelectronic displays are an important component of display devices. They present images or information by emitting light. The light-emitting principle of many light-emitting devices is based on the fact that after power is turned on, electrons and holes combine in the light-emitting layer to form excitons, and when the excitons recombine, they release energy and emit light, such as QLED (quantum dot light-emitting diodes) and OLED (organic light-emitting diodes). These light-emitting devices have the advantages of rich color performance, high contrast, fast response speed, wide viewing angle, energy saving and environmental protection. The luminous efficiency or luminous brightness of these light-emitting devices is greatly affected by the carrier recombination process. Different functional layers and quantum dots are usually used to obtain the optimal device efficiency. This experimental process requires a lot of time, materials and labor costs. Therefore, gate regulation has emerged. Through gate regulation, a built-in electric field can be constructed in these light-emitting devices to achieve the regulation of carrier mobility and the regulation of luminous efficiency, which helps to improve the luminous efficiency.

[0003] Existing light-emitting device integrated devices generally use one-to-one gate control, that is, one control voltage only controls one light-emitting diode. If these devices require a large number of light-emitting diodes, the gate control circuit integration will be complicated, which will lead to a bloated device size. Summary of the invention

[0004] In view of some of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a multi-layer structure color light-emitting device with common gate regulation, aiming to simplify the integrated structure of the gate regulation circuit.

[0005] To achieve the above-mentioned object, the present invention discloses a multi-layer structure color light-emitting device with common gate regulation, wherein the multi-layer structure color light-emitting device comprises: a plurality of light-emitting pixels arranged in rows and columns, wherein the light-emitting pixels comprise a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit, wherein the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit all comprise a first electrode, a light-emitting functional layer and a second electrode; a red gate insulating layer is arranged above the red light-emitting unit, a red gate regulating electrode is arranged above the red gate insulating layer, a green gate insulating layer is arranged above the green light-emitting unit, and a green gate regulating electrode is arranged above the green gate insulating layer; A blue gate control electrode is provided above the blue light-emitting unit, and a blue gate insulating layer is provided above the blue gate insulating layer; a first high-resistance lead is connected between the red gate control electrode and the green gate control electrode in the same light-emitting pixel, and a second high-resistance lead is connected between the green gate control electrode and the blue gate control electrode in the same light-emitting pixel; each of the blue gate control electrodes is uniformly connected to a first point, and each of the red control electrodes is uniformly connected to a second point; wherein the luminous efficiency of the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit decreases in sequence;

[0006] When the stacked structure color light-emitting device is gate-controlled, a first high potential is applied to the first point and a second low potential is applied to the second point, respectively. The potential difference between the first high potential and the second low potential generates a voltage drop through the first high-resistance lead and the second high-resistance lead, and a first control gate voltage, a second control gate voltage and a third control gate voltage from high to low are formed on the blue gate control electrode, the green gate control electrode and the red gate control electrode, respectively; the first control gate voltage is used to construct a first electric field to control the mobility of carriers in the blue light-emitting unit and adjust the luminous efficiency of the blue light-emitting unit, the second control gate voltage is used to construct a second electric field to control the mobility of carriers in the green light-emitting unit and adjust the luminous efficiency of the green light-emitting unit, and the third control gate voltage is used to construct a third electric field to control the mobility of carriers in the red light-emitting unit and adjust the luminous efficiency of the red light-emitting unit.

[0007] Optionally, the red control electrode is connected to a third high-resistance lead, and each of the red control electrodes is connected to the second point through the corresponding third high-resistance lead, and the second point is grounded, so that the second low potential is zero potential; the third high-resistance lead is used to cooperate with the first high-resistance lead and the second high-resistance lead to form the first control gate voltage, the second control gate voltage and the third control gate voltage that respectively meet the luminous efficiency requirements of the blue light-emitting unit, the green light-emitting unit and the red light-emitting unit.

[0008] Optionally, each of the red control electrodes is directly connected to a second point; the first high potential is the first control gate voltage that satisfies the luminous efficiency of the blue light-emitting unit, and the second low potential is the third control gate voltage that satisfies the luminous efficiency of the red light-emitting unit.

[0009] Optionally, an independent gate control electrode is provided on the light-emitting unit of each color, each of the blue gate control electrodes is uniformly connected to a first point, and each of the red control electrodes is uniformly connected to a second point.

[0010] Optionally, the same group of the red gate control electrode, the green gate control electrode, the blue gate control electrode, the first high-resistance lead and the second high-resistance lead cover the light-emitting pixels in the same column, so that the light-emitting units of different colors in the light-emitting pixels in the same column share the gate control electrodes of corresponding colors.

[0011] Optionally, the resistance of the first high-resistance lead is greater than the resistance of the second high-resistance lead.

[0012] Optionally, the corresponding improved luminous efficiencies of the red light-emitting unit, the green light-emitting unit, and the blue light-emitting unit increase in sequence.

[0013] Beneficial effects of the present invention: 1. A red gate insulating layer is arranged above the red light-emitting unit of the present invention, and a red gate control electrode is arranged above the red gate insulating layer; a green gate insulating layer is arranged above the green light-emitting unit, and a green gate control electrode is arranged above the green gate insulating layer; a blue gate insulating layer is arranged above the blue light-emitting unit, and a blue gate control electrode is arranged above the blue gate insulating layer; a first high-resistance lead is connected between the red gate control electrode and the green gate control electrode in the same light-emitting pixel, and a second high-resistance lead is connected between the green gate control electrode and the blue gate control electrode in the same light-emitting pixel; each blue gate control electrode is uniformly connected to the first point, and each red control electrode is uniformly connected to the second point. Through such a structure, the present invention can apply a first high potential at the first point and a second low potential at the second point when performing gate control, and the potential difference between the first high potential and the second low potential generates a voltage drop through the first high-resistance lead and the second high-resistance lead, and form a first control gate voltage, a second control gate voltage and a third control gate voltage from high to low on the blue gate control electrode, the green gate control electrode and the red gate control electrode respectively. The present invention can make multiple light-emitting units of different colors share gate control through the above structure, which can effectively simplify the integrated structure of the gate control circuit; at the same time, the present invention can also enable each light-emitting unit that shares gate control to obtain a gate voltage that meets its own luminous efficiency requirements, thereby achieving an ideal control effect. 2. The red control electrode of the present invention is connected to the third high-resistance lead, and each red control electrode is connected to the second point through the corresponding third high-resistance lead, and the second point is grounded. Such a structure can reduce the number of driving voltages and further simplify the structure. 3. The various red control electrodes of the present invention are uniformly and directly connected to the second point; the first high potential is the first control gate voltage that meets the luminous efficiency of the blue light-emitting unit, and the second low potential is the third control gate voltage that meets the luminous efficiency of the red light-emitting unit. Such a connection method can reduce the voltage difference between the first point and the second point, thereby reducing the current and achieving an energy-saving effect. 4. The same group of red gate control electrodes, green gate control electrodes, blue gate control electrodes, first high-resistance leads and second high-resistance leads of the present invention cover the light-emitting pixels of the same column, so that the light-emitting units of different colors in the light-emitting pixels of the same column can share the gate control electrodes of the corresponding colors. The present invention further simplifies the integrated structure of the gate control circuit through such a structure, and facilitates production.

[0014] In summary, the present invention effectively simplifies the integrated structure of the gate control circuit on the basis of ensuring that the gate control meets the required luminous efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a common gate-controlled stacked structure color light-emitting device provided by a specific embodiment of the present invention;

[0016] Figure 2 is a structural schematic diagram of a light-emitting unit provided by a specific embodiment of the present invention;

[0017] Figure 3 It is a schematic structural diagram of a common-gate-controlled multi-layer structure color light-emitting device provided in a second specific embodiment of the present invention;

[0018] Figure 4 It is a schematic structural diagram of a common gate-controlled multi-layer structure color light-emitting device provided in the third specific embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention discloses a method for driving a multi-layer structure color light-emitting device with common gate regulation. Those skilled in the art can refer to the content of this article and appropriately improve the technical details for implementation. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0020] According to the applicant's research, existing integrated light-emitting device devices generally use one-to-one gate control, that is, one control voltage only controls one light-emitting diode. If these devices require a large number of light-emitting diodes, the integration of the gate control circuit will be complicated, which will lead to a bloated device. However, if the same control voltage is used for driving, the light-emitting efficiencies of different color light-emitting diodes are different, and different control voltages are required, so a good gate control effect cannot be achieved.

[0021] Therefore, the embodiment of the present invention provides a common gate controlled multi-layer structure color light emitting device, such as Figure 1As shown, the stacked structure color light-emitting device includes: a plurality of light-emitting pixels 101 arranged in rows and columns, the light-emitting pixel 101 includes a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit, and the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit all include a first electrode, a light-emitting functional layer and a second electrode; a red gate insulating layer is arranged above the red light-emitting unit, and a red gate control electrode 102 is arranged above the red gate insulating layer; a green gate insulating layer is arranged above the green light-emitting unit, and a green gate control electrode 103 is arranged above the green gate insulating layer; a blue gate insulating layer is arranged above the blue light-emitting unit, and a blue gate control electrode 104 is arranged above the blue gate insulating layer; a first high-resistance lead 105 is connected between the red gate control electrode 102 and the green gate control electrode 103 in the same light-emitting pixel 101, and a second high-resistance lead 106 is connected between the green gate control electrode 103 and the blue gate control electrode 104 in the same light-emitting pixel 101; each blue gate control electrode 104 is uniformly connected to a first point 107, and each red control electrode is uniformly connected to a second point 108.

[0022] Among them, the luminous efficiency of the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit decreases in sequence. Figure 1 middle,

[0023] like Figure 2 As shown, the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit all include a first electrode, a light-emitting functional layer, and a second electrode, and a gate insulating layer and a gate regulating electrode are disposed above each light-emitting unit.

[0024] It should be noted that in general QLED or OLED, the red light-emitting unit usually has the highest photoelectric conversion efficiency (luminous efficiency), and its luminous efficiency can be as high as 90-100%. The photoelectric conversion efficiency of the green light-emitting unit is second. Its luminous efficiency is generally in the range of 20-30%, which is significantly lower than that of the red light-emitting unit. The blue light-emitting unit has the lowest photoelectric conversion efficiency among the three. Its luminous efficiency is approximately between 10-20%, which is much lower than the red light-emitting unit, and slightly lower than the green light-emitting unit but the difference is not large. Therefore, in the light-emitting pixel point 101, the gate voltage is used to regulate the luminous efficiency. The blue light-emitting unit needs to increase the efficiency the most, the green light-emitting unit is second, and the red light-emitting unit is the smallest. That is, the gate voltage required by the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit gradually increases. Therefore, the light-emitting pixel point 101 will be arranged according to red, green and blue or blue, green and red to facilitate the formation of voltage reduction after the high-resistance lead is installed.

[0025] When the stacked structure color light emitting device is gate controlled, a first high potential is applied to the first point 107 and a second low potential is applied to the second point 108, respectively. The potential difference between the first high potential and the second low potential generates a voltage drop through the first high resistance lead 105 and the second high resistance lead 106, and a first control gate voltage, a second control gate voltage and a third control gate voltage from high to low are formed on the blue gate control electrode 104, the green gate control electrode 103 and the red gate control electrode 102, respectively; the first control gate voltage is used to construct a first electric field to control the mobility of carriers in the blue light emitting unit and adjust the luminous efficiency of the blue light emitting unit, the second control gate voltage is used to construct a second electric field to control the mobility of carriers in the green light emitting unit and adjust the luminous efficiency of the green light emitting unit, and the third control gate voltage is used to construct a third electric field to control the mobility of carriers in the red light emitting unit and adjust the luminous efficiency of the red light emitting unit. Among them, the high and low of the first high potential and the second low potential are relative.

[0026] It should be noted that, in the embodiment of the present invention, each blue gate control electrode 104 is uniformly connected to the first point 107, each red control electrode is uniformly connected to the second point 108, and the first high-resistance lead 105 is connected between the red gate control electrode 102 and the green gate control electrode 103 in the same light-emitting pixel 101, and the second high-resistance lead 106 is connected between the green gate control electrode 103 and the blue gate control electrode 104 in the same light-emitting pixel 101. Therefore, when the first high potential is applied to the first point 107 and the second low potential is applied to the second point 108, the first control gate voltage, the second control gate voltage and the third control gate voltage from high to low are formed on the blue gate control electrode 104, the green gate control electrode 103 and the red gate control electrode 102 respectively. In this way, multiple light-emitting units of different colors can share the gate control, which can effectively simplify the integrated structure of the gate control circuit, and ensure that the gate voltages obtained by the light-emitting units of different colors meet their requirements for light-emitting efficiency.

[0027] In another specific embodiment, if the luminous efficiencies of the red, green and blue light emitting units are different, the light emitting units are arranged in order of luminous efficiency so that the gate voltage formed by the voltage drop meets the luminous efficiency requirements of each light emitting unit.

[0028] In the first specific embodiment, if Figure 3As shown, the red control electrode is connected to the third high-resistance lead 109, and each red control electrode is connected to the second point 108 through the corresponding third high-resistance lead 109. The second point 108 is grounded, so that the second low potential is zero potential; the third high-resistance lead 109 is used to cooperate with the first high-resistance lead 105 and the second high-resistance lead 106 to form a first control gate voltage, a second control gate voltage and a third control gate voltage that respectively meet the luminous efficiency requirements of the blue light-emitting unit, the green light-emitting unit and the red light-emitting unit.

[0029] It should be noted that, with such a structure, the second low potential can be driven without being applied, thereby reducing the number of drivers and simplifying the structure.

[0030] In the second specific embodiment, Figure 1 As shown, each red control electrode is directly connected to the second point 108; the first high potential is a first control gate voltage that satisfies the luminous efficiency of the blue light-emitting unit, and the second low potential is a third control gate voltage that satisfies the luminous efficiency of the red light-emitting unit.

[0031] It should be noted that although such a structure requires two different driving voltages to form a voltage drop, since the two driving voltages do not start from zero and are in the same direction, the potential difference between the two voltages is small, and the current formed is also small, which can effectively save energy.

[0032] In the third specific embodiment, Figure 1 As shown, an independent gate control electrode is disposed on each color of the light emitting unit, each blue gate control electrode 104 is uniformly connected to the first point 107 , and each red control electrode is uniformly connected to the second point 108 .

[0033] In the fourth specific embodiment, Figure 4 As shown, the same group of red gate control electrodes 102, green gate control electrodes 103, blue gate control electrodes 104, first high-resistance leads 105 and second high-resistance leads 106 cover the light-emitting pixels 101 in the same column, so that light-emitting units of different colors in the light-emitting pixels 101 in the same column share the gate control electrodes of corresponding colors. Figure 4 In the figure, a single luminous pixel 101 cannot be clearly shown due to the coverage, and the dotted box is a luminous pixel 101.

[0034] It should be noted that such a structure is more convenient to integrate and easier to produce.

[0035] In this specific embodiment, the resistance of the first high-resistance lead 105 is greater than the resistance of the second high-resistance lead 106 .

[0036] It should be noted that, because the original luminous efficiency of the red light emitting unit is much greater than that of the green and blue ones, the required gate regulation voltage is smaller, and thus the resistance of the first high-resistance lead 105 is greater than the resistance of the second high-resistance lead 106 .

[0037] In this specific embodiment, the corresponding improved luminous efficiencies of the red light emitting unit, the green light emitting unit, and the blue light emitting unit increase in sequence.

[0038] It should be noted that the original luminous efficiencies of the red light-emitting unit, the green light-emitting unit, and the blue light-emitting unit decrease in sequence, and thus the luminous efficiencies that need to be improved increase in sequence.

[0039] In the embodiment of the present invention, a red gate insulating layer is arranged above the red light-emitting unit, and a red gate control electrode 102 is arranged above the red gate insulating layer; a green gate insulating layer is arranged above the green light-emitting unit, and a green gate control electrode 103 is arranged above the green gate insulating layer; a blue gate insulating layer is arranged above the blue light-emitting unit, and a blue gate control electrode 104 is arranged above the blue gate insulating layer; a first high-resistance lead 105 is connected between the red gate control electrode 102 and the green gate control electrode 103 in the same light-emitting pixel point 101, and a second high-resistance lead 106 is connected between the green gate control electrode 103 and the blue gate control electrode 104 in the same light-emitting pixel point 101; each blue gate control electrode 104 is uniformly connected to a first point position 107, and each red control electrode is uniformly connected to a second point position 108. The embodiment of the present invention can apply a first high potential to the first point 107 and a second low potential to the second point 108 during gate control through such a structure. The potential difference between the first high potential and the second low potential generates a voltage drop through the first high-resistance lead 105 and the second high-resistance lead 106, and forms a first control gate voltage, a second control gate voltage and a third control gate voltage from high to low on the blue gate control electrode 104, the green gate control electrode 103 and the red gate control electrode 102 respectively. The embodiment of the present invention can make multiple light-emitting units of different colors share gate control through the above structure, which can effectively simplify the integrated structure of the gate control circuit; at the same time, the embodiment of the present invention can also make each light-emitting unit that shares gate control obtain a gate voltage that meets its own required luminous efficiency, so as to achieve an ideal control effect.

[0040] The red control electrode of the embodiment of the present invention is connected to the third high-resistance lead 109, and each red control electrode is connected to the second point 108 through the corresponding third high-resistance lead 109, and the second point 108 is grounded. This structure can reduce the number of driving voltages and further simplify the structure.

[0041] In the embodiment of the present invention, each red control electrode is directly connected to the second point 108; the first high potential is the first control gate voltage that satisfies the luminous efficiency of the blue light-emitting unit, and the second low potential is the third control gate voltage that satisfies the luminous efficiency of the red light-emitting unit. Such a connection method can reduce the voltage difference between the first point 107 and the second point 108, thereby reducing the current and achieving energy saving.

[0042] The same group of red gate control electrodes 102, green gate control electrodes 103, blue gate control electrodes 104, first high-resistance leads 105, and second high-resistance leads 106 in the embodiment of the present invention cover the light-emitting pixels 101 in the same column, so that light-emitting units of different colors in the light-emitting pixels 101 in the same column can share the gate control electrodes of the corresponding colors. The embodiment of the present invention further simplifies the integrated structure of the gate control circuit through such a structure, and facilitates production and manufacturing.

[0043] In summary, the embodiments of the present invention effectively simplify the integrated structure of the gate control circuit on the basis of ensuring that the gate control meets the required luminous efficiency.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A common gate controlled multi-layer structure color light emitting device, characterized in that: The stacked structure color light-emitting device comprises: a plurality of light-emitting pixels arranged in rows and columns, the light-emitting pixels comprising a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit, the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit all comprising a first electrode, a light-emitting functional layer and a second electrode; a red gate insulating layer is arranged above the red light-emitting unit, a red gate regulating electrode is arranged above the red gate insulating layer, a green gate insulating layer is arranged above the green light-emitting unit, a green gate regulating electrode is arranged above the green gate insulating layer, a blue gate insulating layer is arranged above the blue light-emitting unit, and a blue gate regulating electrode is arranged above the blue gate insulating layer; a first high-resistance lead is connected between the red gate regulating electrode and the green gate regulating electrode in the same light-emitting pixel, and a second high-resistance lead is connected between the green gate regulating electrode and the blue gate regulating electrode in the same light-emitting pixel; each of the blue gate regulating electrodes is uniformly connected to a first point, and each of the red regulating electrodes is uniformly connected to a second point; wherein the luminous efficiency of the red light-emitting unit, the green light-emitting unit and the blue light-emitting unit decreases in sequence; When the stacked structure color light-emitting device is gate-controlled, a first high potential is applied to the first point and a second low potential is applied to the second point, respectively. The potential difference between the first high potential and the second low potential generates a voltage drop through the first high-resistance lead and the second high-resistance lead, and a first control gate voltage, a second control gate voltage and a third control gate voltage from high to low are formed on the blue gate control electrode, the green gate control electrode and the red gate control electrode, respectively; the first control gate voltage is used to construct a first electric field to control the mobility of carriers in the blue light-emitting unit and adjust the luminous efficiency of the blue light-emitting unit, the second control gate voltage is used to construct a second electric field to control the mobility of carriers in the green light-emitting unit and adjust the luminous efficiency of the green light-emitting unit, and the third control gate voltage is used to construct a third electric field to control the mobility of carriers in the red light-emitting unit and adjust the luminous efficiency of the red light-emitting unit.

2. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: The red control electrode is connected to the third high-resistance lead, and each of the red control electrodes is connected to the second point through the corresponding third high-resistance lead, and the second point is grounded, so that the second low potential is zero potential; the third high-resistance lead is used to cooperate with the first high-resistance lead and the second high-resistance lead to form the first control gate voltage, the second control gate voltage and the third control gate voltage that respectively meet the luminous efficiency requirements of the blue light-emitting unit, the green light-emitting unit and the red light-emitting unit.

3. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: Each of the red control electrodes is directly connected to a second point; the first high potential is the first control gate voltage that satisfies the luminous efficiency of the blue light-emitting unit, and the second low potential is the third control gate voltage that satisfies the luminous efficiency of the red light-emitting unit.

4. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: An independent gate control electrode is arranged on the light emitting unit of each color, each of the blue gate control electrodes is uniformly connected to the first point, and each of the red control electrodes is uniformly connected to the second point.

5. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: The same group of the red gate control electrode, the green gate control electrode, the blue gate control electrode, the first high-resistance lead and the second high-resistance lead cover the light-emitting pixels in the same column, so that the light-emitting units of different colors in the light-emitting pixels in the same column share the gate control electrode of the corresponding color.

6. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: The resistance value of the first high-resistance lead is greater than the resistance value of the second high-resistance lead.

7. The common gate controlled multi-layer structure color light emitting device according to claim 1, characterized in that: The corresponding improved luminous efficiencies of the red light emitting unit, the green light emitting unit, and the blue light emitting unit increase in sequence.

Images