A calculator with photovoltaic power generation
By setting a photovoltaic layer within the pixel gaps of the liquid crystal display component, ambient light energy is collected and stored in the battery, solving the problem of frequent battery replacements required for calculators and improving battery life and usability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRULY SEMICON
- Filing Date
- 2025-05-23
- Publication Date
- 2026-07-14
AI Technical Summary
Existing calculators require frequent battery replacements, which affects usability, and the effective lifespan of standard batteries is relatively short.
A photovoltaic layer is set within the pixel gaps of the liquid crystal display component. The ambient light energy collected by the LCD FPC is converted into electrical energy and stored in a battery to achieve continuous power supply.
It extends the battery life, allowing for extended periods without battery replacement in some scenarios, thus improving the calculator's practicality.
Smart Images

Figure CN224501273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calculator technology, and in particular to a calculator with photovoltaic power generation. Background Technology
[0002] Modern electronic calculators are handheld electronic devices capable of performing mathematical calculations. They possess integrated circuit chips, but their structure is much simpler than that of computers. They can be considered the first generation of electronic computers, and their functions are also weaker. However, they are more convenient and inexpensive, and can be widely used in commercial transactions. They are one of the essential office supplies.
[0003] like Figure 9 The LCD screen 1-1 shown is a dot-matrix display in reflective mode, requiring no backlight, and is used in a calculator. Since conventional calculators require batteries, and conventional batteries have limited capacity and short lifespans, frequent battery replacements are necessary, affecting the calculator's usability. Therefore, a calculator with photovoltaic power generation is proposed. Utility Model Content
[0004] Therefore, it is necessary to provide a calculator with photovoltaic power generation to address the above-mentioned technical problems. By incorporating a photovoltaic layer into the liquid crystal display component of a conventional calculator, ambient light can be collected and converted into electrical energy stored in the battery during practical applications, thus meeting the requirements for long-lasting battery life.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A calculator with photovoltaic power generation includes a liquid crystal display assembly. The liquid crystal display assembly includes an upper glass substrate and a lower glass substrate that are bonded together. A liquid crystal layer is sealed and filled between the upper glass substrate and the lower glass substrate. The liquid crystal display assembly has a plurality of equidistantly distributed pixels, and pixel gaps are formed between adjacent pixels. A photovoltaic layer is provided on the upper glass substrate, and the photovoltaic layer is disposed within the pixel gaps, avoiding the pixels.
[0007] The liquid crystal display component is bonded to an LCD FPC, and the photovoltaic layer is bonded to and connected to the LCD FPC through positive and negative electrodes.
[0008] Furthermore, the LCD FPC includes an LCD connection unit and a photovoltaic connection unit, which are integrally formed to form the LCD FPC.
[0009] Furthermore, the LCD FPC has a display drive signal binding terminal at one end and a binding terminal at the other end for binding and connecting to an external motherboard. The LCD FPC is bound and connected to the liquid crystal display component through the display drive signal binding terminal.
[0010] Furthermore, one end of the photovoltaic connection unit has positive and negative electrode bonding terminals, and the other end is integrally connected to the LCD FPC;
[0011] The photovoltaic connection unit is connected to the positive and negative electrode interfaces of the photovoltaic layer through the positive and negative electrode bonding terminals.
[0012] Furthermore, the width of a single line in the photovoltaic layer is smaller than the width of the pixel gap.
[0013] Furthermore, the width of a single line in the photovoltaic layer is 0.015 mm.
[0014] Furthermore, the lower glass substrate extends beyond the upper glass substrate to form a single-layer region, and the display drive signal bonding terminal is bonded to the single-layer region.
[0015] Furthermore, an upper polarizer and a lower polarizer are respectively attached to the outer sides of the photovoltaic layer and the lower glass substrate.
[0016] Furthermore, the liquid crystal display component is embedded in the calculator housing, with the display end face exposed to the outside;
[0017] The calculator housing also includes a keypad, a control board, an energy harvesting chip, and a battery, all of which are electrically connected to the control board.
[0018] Furthermore, the photovoltaic layer is electrically connected to the energy harvesting chip via an LCD FPC, and the energy collected by the photovoltaic layer is converted and stored in the battery by the energy harvesting chip.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] The calculator with photovoltaic power generation provided by this utility model incorporates a photovoltaic layer on a conventional computer LCD display component. This allows the calculator to collect ambient light during actual use and store it in the battery via the LCD FPC, thus continuously powering the battery and effectively extending its battery life. In some special application environments, it can even achieve the effect of not needing to replace the battery for a long time.
[0021] By placing the photovoltaic layer within the pixel gaps, it is possible to achieve the function of energy storage without affecting the overall display effect of the liquid crystal display module, thus enhancing its practicality. Attached Figure Description
[0022] Figure 1 A schematic diagram of the structure of the calculator with photovoltaic power generation provided by this utility model;
[0023] Figure 2 A side view of the calculator with photovoltaic power generation provided by this utility model;
[0024] Figure 3 A schematic diagram of the front structure between the liquid crystal displays of the calculator with photovoltaic power generation provided by this utility model;
[0025] Figure 4 The calculator with photovoltaic power generation provided by this utility model Figure 3 A schematic diagram of the structure of pixel A in the middle;
[0026] Figure 5 A schematic diagram of the photovoltaic layer structure of the calculator with photovoltaic power generation provided by this utility model;
[0027] Figure 6 A schematic diagram of the LCD FPC structure of the calculator with photovoltaic power generation provided by this utility model;
[0028] Figure 7 A schematic diagram of the connection structure of the control motherboard system for a calculator with photovoltaic power generation provided by this utility model;
[0029] Figure 8 A schematic diagram of the calculator housing structure for a calculator with photovoltaic power generation provided by this utility model;
[0030] Figure 9 A schematic diagram of the structure of a conventional calculator provided by this utility model.
[0031] The markings in the diagram are explained as follows:
[0032] 1. Upper glass substrate; 11. Pixels; 12. Pixel gap;
[0033] Lower glass substrate 2, single-layer region 21, lower polarizer 22;
[0034] Photovoltaic layer 3, upper polarizer 31;
[0035] LCD FPC4, LCD connection unit 41, photovoltaic connection unit 42, display screen drive signal bonding terminal 43, bonding terminal 44, positive and negative electrode bonding terminal 45;
[0036] Calculator casing 5, keypad 51, control motherboard 52, energy harvesting chip 53, storage battery 54. Detailed Implementation
[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0038] As described in the background section, conventional calculators require batteries to function, and since conventional batteries have limited capacity and short lifespans, they need to be replaced frequently, which affects the calculator's usability.
[0039] To solve this technical problem, this utility model provides a calculator with photovoltaic power generation, which is applied to a calculator.
[0040] For details, please refer to Figures 1-9 As shown, the calculator with photovoltaic power generation specifically includes a liquid crystal display assembly. The liquid crystal display assembly includes an upper glass substrate 1 and a lower glass substrate 2 that are bonded together. A liquid crystal layer is sealed and filled between the upper glass substrate 1 and the lower glass substrate 2. The liquid crystal display assembly has a plurality of equidistantly distributed pixels 11. Adjacent pixels 11 are separated by pixel gaps 12. A photovoltaic layer 3 is provided on the upper glass substrate 1, and the photovoltaic layer 3 is disposed within the pixel gaps 12, avoiding the pixels 11.
[0041] The liquid crystal display component is bonded to an LCD FPC4, and the photovoltaic layer 3 is bonded to the LCD FPC4 via positive and negative electrodes.
[0042] The calculator with photovoltaic power generation provided by this utility model has a photovoltaic layer 3 on a conventional computer LCD display component. This allows the calculator to collect ambient light during actual use and store it in the battery 54 via the LCD FPC4. This provides continuous power to the battery 54, effectively extending its battery life. In some special application environments, it can even achieve the effect of not replacing the battery for a long time.
[0043] By placing the photovoltaic layer 3 within the pixel gap 12, the function of energy storage can be achieved without affecting the overall display effect of the liquid crystal display module, making it more practical.
[0044] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0045] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0047] Example 1
[0048] Please refer to Figures 1-9 As shown, a calculator with photovoltaic power generation includes a liquid crystal display assembly. The liquid crystal display assembly includes an upper glass substrate 1 and a lower glass substrate 2 that are bonded together. A liquid crystal layer is sealed and filled between the upper glass substrate 1 and the lower glass substrate 2. The liquid crystal display assembly has a plurality of equidistantly distributed pixels 11. Adjacent pixels 11 are separated by pixel gaps 12. A photovoltaic layer 3 is provided on the upper glass substrate 1, and the photovoltaic layer 3 is disposed within the pixel gaps 12, avoiding the pixels 11.
[0049] The liquid crystal display component is bonded to an LCD FPC4, and the photovoltaic layer 3 is bonded to and connected to the LCD FPC4 through positive and negative electrodes;
[0050] In this embodiment, a photovoltaic layer 3 is set on a conventional liquid crystal display component. The photovoltaic layer 3 can collect natural light from the outside and convert it into electrical energy, which is stored in the battery 54. In this way, the battery 54 is continuously replenished in the light usage scenario, so as to improve the overall battery life.
[0051] Example 2
[0052] The calculator with photovoltaic power generation provided in Embodiment 1 is further optimized, specifically, as follows: Figure 4 As shown, the LCD FPC4 includes an LCD connection unit 41 and a photovoltaic connection unit 42, which are integrally formed to form the LCD FPC4.
[0053] The LCD FPC4 has a display drive signal binding terminal 43 at one end and a binding terminal 44 at the other end that is bound to an external motherboard. The LCD FPC4 is bound to the liquid crystal display component through the display drive signal binding terminal 43 and the binding terminal 44 is connected to the external motherboard.
[0054] One end of the photovoltaic connection unit 42 has a positive and negative electrode bonding end 45, and the other end is integrally connected to the LCD FPC4.
[0055] The photovoltaic connection unit 42 is connected to the positive and negative electrode interfaces of the photovoltaic layer 3 through the positive and negative electrode bonding end 45;
[0056] The lower glass substrate 2 extends out of the upper glass substrate 1 and forms a single-layer region 21, and the display screen drive signal binding terminal 43 is bound to the single-layer region 21.
[0057] In this embodiment, the LCD FPC4 is divided into two parts: an LCD connection unit 41 and a photovoltaic connection unit 42. In this embodiment, only the names are used to distinguish the different areas of the LCD FPC4. In actual design, the main traces of the liquid crystal display component in the LCD FPC4 are set in the LCD connection unit 41, while the traces of the photovoltaic layer 3 are mainly concentrated in the photovoltaic connection unit 42 and guided to the bonding end 44 through the edge of the LCD connection unit 41. In this way, when the bonding end 44 is finally connected to the external motherboard, the connection between the liquid crystal display component and the photovoltaic layer 3 can be realized simultaneously.
[0058] Example 3
[0059] The calculator with photovoltaic power generation provided in Embodiment 1 or 2 is further optimized, such as... Figure 4 and Figure 5 As shown, the width of a single line in the photovoltaic layer 3 is smaller than the width of the pixel gap 12;
[0060] Since pixel gaps 12 are formed between pixels 11, in this embodiment, the photovoltaic layer 3 is only placed within the pixel gaps 12 and avoids the corresponding pixel positions 11. This way, when the photovoltaic layer 3 performs actual light energy collection, it will not affect the display effect of the liquid crystal display component itself.
[0061] In this embodiment, the photovoltaic layer 3 is specifically deposited on the upper glass substrate 1, and is set in correspondence with the pixel gap 12 in the liquid crystal display component, rather than being directly disposed inside the pixel gap 12.
[0062] The width of a single line in the photovoltaic layer 3 is 0.015 mm. The width cannot be larger than that, otherwise the lines will be easily visible to the human eye and affect the senses. The specific width of a single photovoltaic line should be adjusted adaptively according to the actual size of the liquid crystal display component and the size of the pixel gap 12. In this embodiment, the width of a single photovoltaic line is not limited to a single value.
[0063] The photovoltaic layer 3 in this embodiment comprises a transparent front electrode, an amorphous silicon layer, a metal layer, and a protective layer. The transparent front electrode, the amorphous silicon layer, the metal layer, and the protective layer are sequentially formed on the upper glass substrate 1 to obtain the transparent photovoltaic layer 3. Since the actual working principle and layered structure of the photovoltaic layer 3 are well known to those skilled in the art, no further explanation is needed in this embodiment.
[0064] Example 4
[0065] The calculator with photovoltaic power generation provided in Example 3 has been further optimized, such as... Figure 2 The photovoltaic layer 3 and the lower glass substrate 2 shown are respectively attached to the outer sides of the upper polarizer 31 and the lower polarizer 22;
[0066] The liquid crystal display component is embedded in the calculator housing 5, with the display end face exposed to the outside;
[0067] The calculator housing 5 is also equipped with a keypad 51, a control board 52, an energy harvesting chip 53 and a battery 54. The keypad 51, the energy harvesting chip 53 and the battery 54 are all electrically connected to the control board 52.
[0068] The keypad 51 is a conventional calculator with operation buttons for inputting values and formulas to be calculated. The control board 52 is used to calculate the values on the keypad 51 and feed them back to the LCD display for display. In this embodiment, the control board 52 is also connected to the photovoltaic layer 3. After the photovoltaic layer 3 collects external solar energy, it is input into the energy harvesting chip 53 through the LCDFPC4. The energy is then converted by the energy harvesting chip 53 and stored in the battery 54. The control board 52 can drive the energy harvesting chip 53 and monitor the charging and discharging of the battery 54.
[0069] The photovoltaic layer 3 is electrically connected to the energy harvesting chip 53 via the LCD FPC4. The energy harvested by the photovoltaic layer 3 is converted and stored in the battery 54 by the energy harvesting chip 53.
[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0071] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A calculator with photovoltaic power generation, comprising a liquid crystal display assembly, the liquid crystal display assembly comprising an upper glass substrate (1) and a lower glass substrate (2) bonded together, wherein a liquid crystal layer is sealed and filled between the upper glass substrate (1) and the lower glass substrate (2), characterized in that, The liquid crystal display assembly has a plurality of equally spaced pixels (11), and a pixel gap (12) is formed between adjacent pixels (11). A photovoltaic layer (3) is provided on the upper glass substrate (1), and the photovoltaic layer (3) is disposed in the pixel gap (12) avoiding the pixels (11). The liquid crystal display component is bonded to an LCD FPC (4), and the photovoltaic layer (3) is bonded to the LCD FPC (4) through positive and negative electrodes.
2. The calculator with photovoltaic power generation according to claim 1, characterized in that, The LCD FPC (4) includes an LCD connection unit (41) and a photovoltaic connection unit (42), which are integrally formed to form the LCD FPC (4).
3. The calculator with photovoltaic power generation according to claim 2, characterized in that, The LCD FPC (4) has a display drive signal binding terminal (43) at one end and a binding terminal (44) for binding and connecting to an external motherboard at the other end. The LCD FPC (4) is bound and connected to the liquid crystal display component through the display drive signal binding terminal (43).
4. The calculator with photovoltaic power generation according to claim 2, characterized in that, One end of the photovoltaic connection unit (42) has a positive and negative electrode bonding end (45), and the other end is integrally connected to the LCD FPC (4); The photovoltaic connection unit (42) is connected to the positive and negative electrode interfaces of the photovoltaic layer (3) through the positive and negative electrode bonding end (45).
5. The calculator with photovoltaic power generation according to claim 1, characterized in that, The width of a single line of the photovoltaic layer (3) is smaller than the width of the pixel gap (12).
6. The calculator with photovoltaic power generation according to claim 5, characterized in that, The width of a single line of the photovoltaic layer (3) is 0.015 mm.
7. The calculator with photovoltaic power generation according to claim 3, characterized in that, The lower glass substrate (2) extends out of the upper glass substrate (1) and forms a single-layer region (21), and the display drive signal binding terminal (43) is bound to the single-layer region (21).
8. The calculator with photovoltaic power generation according to claim 1, characterized in that, The photovoltaic layer (3) and the lower glass substrate (2) are respectively attached to the outer side of the upper polarizer (31) and the lower polarizer (22).
9. The calculator with photovoltaic power generation according to claim 1, characterized in that, The liquid crystal display component is embedded in the calculator housing (5) and the display end face is exposed to the outside; The calculator housing (5) is also equipped with a keypad (51), a control board (52), an energy harvesting chip (53), and a battery (54). The keypad (51), the energy harvesting chip (53), and the battery (54) are all electrically connected to the control board (52).
10. The calculator with photovoltaic power generation according to claim 9, characterized in that, The photovoltaic layer (3) is electrically connected to the energy harvesting chip (53) through the LCD FPC (4). The energy collected by the photovoltaic layer (3) is converted and stored in the battery (54) by the energy harvesting chip (53).